Indoor fire hydrant with handle

Abstract

The utility model discloses an indoor fire hydrant with a handle. The indoor fire hydrant comprises a body and the handle rotationally arranged on the body. The oil pipe is arranged on the body, a plurality of oil nozzles used for spraying oil are formed in the oil pipe, and the oil nozzles extend to a gap between the body and the handle; the extension rod is arranged on the handle, and the extension rod rotates relative to the oil pipe so that the oil nozzle can spray oil. According to the indoor fire hydrant with the handle, a user needs to rotate the extension rod with light force, so that the handle is driven, the extension rod and the oil pipe rotate relatively in the rotating process, the oil pipe sprays oil through the oil nozzle, lubricating oil enters a gap between the body and the handle, friction force is reduced, meanwhile, a rusted part is subjected to infiltration protection, and the service life is prolonged. And the corrosion range is prevented from being expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting, in particular to an indoor fire hydrant with a handle. Background Art

[0002] Indoor fire hydrants refer to fire-fighting equipment installed inside buildings for extinguishing and fighting fires. They are usually composed of fire hydrant boxes, fire hydrant interfaces, fire hydrant pipes, valves, etc. The valve is usually opened by rotating the handwheel, so that water flows into the fire hose through the fire hydrant interface.

[0003] In conjunction with announcement number CN215461656U, announcement date 2022-01-11, a concealed fire hydrant box for indoor building fire protection is disclosed.

[0004] In the prior art including the above patents, the twist block, twist sleeve and gripping rod are designed so that when rotating, the force arm during rotation is increased, so as to drive the switch on the fire hydrant to rotate and open the fire hydrant, thereby saving effort and reducing the difficulty of opening. When opening, the threaded sleeve is rotated, and the limiting edge is inserted into the rectangular groove, which limits the threaded rod, thereby adjusting the position of the threaded rod in the threaded sleeve, causing the threaded rod to drop, and releasing the limit on the gripping rod, so that the second twisting sleeve can be placed on the twist block, and the gripping rod can be rotated to open. However, the gripping rod saves effort by extending the force arm, which essentially amplifies the force of turning the handle. When rust occurs between the handle and the fire hydrant, excessive rotation force may cause the rusted part of the handle to peel off and be damaged, affecting the service life of the handle. Utility Model Content

[0005] The utility model aims to provide an indoor fire hydrant with a handle, so as to solve the above problems.

[0006] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: an indoor fire hydrant with a handle, comprising a main body and a handle rotatably arranged thereon;

[0007] An oil pipe is arranged on the body and is provided with a plurality of oil nozzles for spraying oil, and the oil nozzles extend toward the gap between the body and the handle;

[0008] The extension rod is arranged on the handle, and the extension rod rotates relative to the oil pipe to make the oil nozzle spray oil.

[0009] Preferably, an oil storage tank is provided on the handle, the oil storage tank is connected to the oil pipe, and a valve stem is fixedly provided on the handle, and the valve stem is in conflict with the oil pipe.

[0010] Preferably, the oil pipe has an annular structure, and a plurality of expansion parts are arranged in a circular array on the oil pipe.

[0011] Preferably, the extension rod rotates relative to the handle, and the center line of the extension rod always extends toward the center of the handle.

[0012] Preferably, an air intake pipe is provided on the handle, the air intake pipe is connected to the oil storage tank, and a piston for opening and closing the air intake pipe is slidably provided in the air intake pipe, and the piston moves synchronously with the extension rod.

[0013] Preferably, a shift block is provided on the piston, a sliding rod is provided on the first surface of the extension rod, and the sliding rod includes a sliding portion and a bending portion, and the shift block is slidably matched with the sliding portion.

[0014] In the above technical scheme, the utility model provides an indoor fire hydrant with a handle, which has the following beneficial effects: the user rotates the extension rod with a relatively light force to drive the handle, and during the rotation process, the extension rod and the oil pipe rotate relative to each other, so that the oil pipe sprays oil through the oil nozzle, and the lubricating oil enters the gap between the main body and the handle, reducing friction, and at the same time, the rusted part is infiltrated and protected to prevent the expansion of the rust range. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 An overall three-dimensional schematic diagram provided for an embodiment of the utility model;

[0017] Figure 2 A schematic diagram of a sliding rod, a shifting block and a piston provided in an embodiment of the utility model;

[0018] Figure 3 A half-section schematic diagram of a valve stem and an oil storage tank provided in an embodiment of the utility model;

[0019] Figure 4 A schematic diagram of an oil pipe provided in an embodiment of the utility model.

[0020] Description of reference numerals:

[0021] 1. Main body; 2. Handle; 3. Extension rod; 31. Sliding rod; 32. Shift block; 33. Piston; 34. Intake pipe; 4. Oil storage tank; 5. Oil pipe; 51. Expanded part. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-4 As shown, an indoor fire hydrant with a handle comprises a body 1 and a handle 2 rotatably arranged thereon;

[0024] An oil pipe 5 is disposed on the body 1 and is provided with a plurality of oil nozzles for spraying oil, the oil nozzles extending toward the gap between the body 1 and the handle 2;

[0025] The extension rod 3 is arranged on the handle 2, and the extension rod 3 rotates relative to the oil pipe 5 to make the oil nozzle spray oil.

[0026] Specifically, when using a fire hydrant, the user holds the extension rod 3. Since the length of the extension rod 3 is greater than the handle 2, the length of the lever arm increases. The user may rotate the extension rod 3 with a lighter force, thereby driving the handle 2. During the rotation, the extension rod 3 and the oil pipe 5 rotate relative to each other, so that the oil pipe 5 sprays oil through the oil nozzle, and the lubricating oil enters the gap between the body 1 and the handle 2, reducing friction.

[0027] In the above technology, the user can use a relatively light force to rotate the extension rod 3, thereby driving the handle 2. During the rotation process, the extension rod 3 and the oil pipe 5 rotate relative to each other, so that the oil pipe 5 sprays oil through the oil nozzle, and the lubricating oil enters the gap between the main body 1 and the handle 2, reducing the friction, and at the same time, the rusted part is infiltrated and protected to prevent the rust range from expanding.

[0028] As an embodiment further provided by the present invention, an oil storage tank 4 is arranged on the handle 2 , the oil storage tank 4 is connected with the oil pipe 5 , a valve stem is fixedly arranged on the handle 2 , and the valve stem is in conflict with the oil pipe 5 .

[0029] Specifically, the lubricating oil is stored in the oil storage tank 4 for easy use at any time. The handle 2 is rotated by the extension rod 3 to drive the valve stem to rotate. Since the outer surface of the valve stem is an uneven structure, the valve stem presses against the oil pipe 5 during the rotation. Since the oil pipe 5 is a rubber flexible tube with an annular structure and is provided with a plurality of swelling portions 51, when the valve stem presses against the swelling portion 51, the lubricating oil in the oil pipe 5 is squeezed and finally injected into the gap through the oil nozzle. When the valve stem stops, the concave portion on the valve stem is opposite to the swelling portion 51, and the swelling portion 51 recovers under the action of its own elasticity after losing the pressure.

[0030] As another embodiment further provided by the present invention, the extension rod 3 rotates relative to the handle 2 , and the center line of the extension rod 3 always extends toward the center of the handle 2 .

[0031] Specifically, the handle 2 is provided with a groove corresponding to the center line of the extension rod 3. When the extension rod 3 is not in use, the extension rod 3 can be made to correspond to the groove, and the extension rod 3 can be folded and stored to save space.

[0032] As another embodiment further provided by the present invention, an air intake pipe 34 is provided on the handle 2, the air intake pipe 34 is connected to the oil storage tank 4, and a piston 33 for opening and closing the air intake pipe 34 is slidably provided in the air intake pipe 34, and the piston 33 and the extension rod 3 keep synchronous movement.

[0033] Specifically, the air intake pipe 34 is connected to the oil storage tank 4. When the air intake pipe 34 is closed by the piston 33, the interior of the oil storage tank 4 is also closed, and the internal pressure is relatively small. Combined with the fact that the lubricating oil itself has a certain surface tension, the oil storage tank 4 does not supply oil to the oil pipe 5. At this time, when the valve stem presses the oil pipe 5, the oil nozzle cannot spray oil outward, thereby avoiding waste. The extension rod 3 is rotated to disengage the extension rod 3 from the groove. Since the piston 33 and the extension rod 3 move synchronously, the air intake pipe 34 is opened, allowing outside air to enter the oil storage tank 4. The pressure inside and outside the oil storage tank 4 is consistent, overcoming the surface tension, and the oil storage tank 4 supplies oil to the oil pipe 5.

[0034] As another embodiment further provided by the present invention, a shift block 32 is provided on the piston 33, a sliding rod 31 is provided on the first surface of the extension rod 3, and the sliding rod 31 includes a sliding portion and a bending portion, and the shift block 32 slidably cooperates with the sliding portion.

[0035] The first surface of the extension rod 3 will press against the upper side of the shift block 32, driving the shift block 32 and the piston 33 to move downward, and returning to the state of closing the air intake pipe 34.

[0036] Working principle: the user rotates the extension rod 3 vertically, the upper side of the sliding part of the sliding rod 31 abuts against the shift block 32, and slides together to drive the shift block 32 to lift upward. When the extension rod 3 is rotated to 180°, the extension rod 3 and the handle 2 are coplanar, and the shift block 32 is also abutted by the bent portion to prevent the shift block 32 from separating from the sliding rod 31. The shift block 32 drives the piston 33 to slide upward, so that the air intake pipe 34 is opened, and the outside air enters the oil storage tank 4. The pressure inside and outside the oil storage tank 4 is consistent, overcoming the surface tension, and the oil storage tank 4 fills the oil pipe 5 with oil. Then, the extension rod 3 is rotated horizontally, and the handle 2 is rotated by the extension rod 3 to drive the valve stem to rotate. Since the outer surface of the valve stem is an uneven structure, the valve stem presses the oil pipe 5 during the rotation. Since the oil pipe 5 is a rubber flexible tube with a ring structure, and A plurality of swelling parts 51 are provided. When the valve stem presses against the swelling part 51, the lubricating oil in the oil pipe 5 is squeezed and finally injected into the gap through the oil nozzle. When the valve stem stops, the concave part on the valve stem is opposite to the swelling part 51. After the swelling part 51 loses the pressure, it recovers under the action of its own elasticity. Then, the extension rod 3 is rotated in the vertical direction to restore the extension rod 3 to the groove. During the rotation, the sliding rod 31 is disengaged from the shift block 32, and the first surface of the extension rod 3 presses against the upper side of the shift block 32, driving the shift block 32 and the piston 33 to move downward and return to the state of closing the air intake pipe 34. The interior of the oil storage tank 4 is also closed, and the internal pressure is relatively small. Combined with the fact that the lubricating oil itself has a certain surface tension, the oil storage tank 4 does not supply oil to the oil pipe 5. At this time, when the valve stem presses against the oil pipe 5, the oil nozzle cannot spray oil outward.

[0037] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An indoor fire hydrant with a handle, characterized in that: It comprises a main body (1) and a handle (2) rotatably arranged thereon; An oil pipe (5) is arranged on the body (1), and a plurality of oil nozzles for spraying oil are provided on the oil pipe (5), and the oil nozzles extend toward the gap between the body (1) and the handle (2); An extension rod (3) is arranged on the handle (2), and the extension rod (3) rotates relative to the oil pipe (5) to enable the oil nozzle to spray oil.

2. An indoor fire hydrant with a handle according to claim 1, characterized in that: An oil storage tank (4) is arranged on the handle (2), the oil storage tank (4) is connected to an oil pipe (5), and a valve stem is fixedly arranged on the handle (2), the valve stem abutting against the oil pipe (5).

3. An indoor fire hydrant with a handle according to claim 2, characterized in that: The oil pipe (5) has an annular structure, and a plurality of bulging portions (51) are arranged in an array on the circumference of the oil pipe (5).

4. An indoor fire hydrant with a handle according to claim 1, characterized in that: The extension rod (3) rotates relative to the handle (2), and the center line of the extension rod (3) always extends towards the center of the handle (2).

5. An indoor fire hydrant with a handle according to claim 4, characterized in that: An air intake pipe (34) is provided on the handle (2), the air intake pipe (34) is connected to the oil storage tank (4), and a piston (33) for opening and closing the air intake pipe (34) is slidably provided in the air intake pipe (34), and the piston (33) and the extension rod (3) move synchronously.

6. An indoor fire hydrant with a handle according to claim 5, characterized in that: The piston (33) is provided with a shifting block (32), the first surface of the extension rod (3) is provided with a sliding rod (31), and the sliding rod (31) comprises a sliding portion and a bending portion, and the shifting block (32) is slidably matched with the sliding portion.

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