Outdoor fire hydrant convenient to overhaul

Abstract

An outdoor fire hydrant convenient to overhaul structurally comprises a hydrant body with a water inlet in the lower end, a valve chamber is arranged on each of the left portion and the right portion of the hydrant body, a water outlet connector is arranged at the output end of each valve chamber, a valve rod is connected to each valve chamber in a threaded mode, a clamping type rotating valve clack for sealing an inlet of each valve chamber is arranged at the bottom end of each valve rod, and the valve clacks and the valve rods are connected in a clamping and positioning mode. The clamping pieces on the two sides of the bottom of the valve rod are used for clamping and positioning, when the valve rod is deformed and abraded, although a rotating groove at the connecting position deforms along with the valve rod, due to the existence of a rotating gap, the clamping structure is not affected, the screw rod can still be screwed out through a tool, the screw rod is disconnected from the contact with the clamping pieces, and the reset spring in the stretching state retracts; the clamping piece is driven to retract into the telescopic groove, limitation on the annular rotating groove is relieved, finally, the valve clack body can be directly separated from the valve rod, the deformed valve rod is independently replaced, operation is convenient, and cost output is reduced.

Description

Technical Field

[0001] The utility model discloses an outdoor fire hydrant which is convenient for maintenance and belongs to the field of outdoor fire hydrants. Background Art

[0002] Outdoor fire hydrants are water supply facilities installed on the fire water supply network outside the building. They are mainly used for fire trucks to take water from the municipal water supply network or the outdoor fire water supply network to extinguish fires. They can also be directly connected to water hoses and water guns to discharge water for firefighting. They are one of the important firefighting facilities for fighting fires. The connection between the valve disc and the valve stem on the existing outdoor fire hydrants is fixed by direct bolts or axle pins. When the valve stem is deformed and damaged, the hole groove at the connection end will also be deformed and damaged, resulting in damage to the connection of the valve disc. A complete set of valve stem and valve disc structures need to be replaced, which is costly. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide an outdoor fire hydrant that is easy to maintain, so as to solve the problem that the connection between the valve disc and the valve stem on the existing outdoor fire hydrants is fixed by direct bolts or axle pins. When the valve stem is deformed and damaged, the hole groove at the connecting end will also be deformed and damaged, causing damage to the connection of the valve disc, requiring the replacement of a whole set of valve stem and valve disc structures, which is costly.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme: an outdoor fire hydrant which is easy to repair, and its structure includes a bolt body with a water inlet at the lower end, a valve chamber is arranged on the left and right parts of the bolt body, a water outlet interface is arranged on the output end of the valve chamber, a valve stem is threadedly connected to the valve chamber, a clamping type rotating valve disc is arranged at the bottom end of the valve stem to close the inlet of the valve chamber, and a reinforcing partition is arranged between the two valve chambers, the clamping type rotating valve disc includes a valve disc body and a rotating groove, the rotating groove is arranged at the center of the upper end of the valve disc body, the bottom end of the valve stem is rotatably embedded in the rotating groove, an annular rotating groove is arranged on the outer side of the bottom of the valve stem, and telescopic grooves corresponding to the annular rotating grooves are arranged on the inner walls of the rotating grooves on both sides, a clamping piece is movably arranged in the telescopic groove, one end of the clamping piece is rotatably engaged with the annular rotating groove, a reset spring is arranged between the other end of the clamping piece and the inner wall of the telescopic groove, and internal threaded holes communicating with the telescopic grooves are arranged on both sides of the outer wall of the valve disc body, a screw is threadedly connected to the internal threaded hole, and the inner end of the screw contacts the clamping piece.

[0005] Furthermore, a straight tool action groove is provided at the outer end of the screw.

[0006] Furthermore, the clamping member is an arc-shaped cylindrical structure.

[0007] Furthermore, there is a gap between the clamping member and the inner wall of the annular rotating groove.

[0008] Furthermore, the valve chamber inlet is communicated with the water inlet at the lower end of the bolt body.

[0009] Furthermore, the center lines of the two valve stems intersect in a V-shape.

[0010] Furthermore, the height between the top and the bottom of the bolt body is 25-45 cm.

[0011] The beneficial effects of the utility model are as follows: the valve disc and the valve stem are connected in a clamping and positioning manner, and the clamping parts on both sides of the bottom of the valve stem are clamped and positioned. When the valve stem is deformed and worn, although the rotation groove at the connection will be deformed accordingly, due to the existence of a rotation gap, the clamping structure will not be affected, and the screw rod can still be unscrewed by a tool so that the screw rod breaks contact with the clamping part, and the restoring spring in the stretched state retracts, driving the clamping part to retract into the telescopic groove, thereby releasing the restriction on the annular rotation groove. Finally, the valve disc body can be directly separated from the valve stem, and the deformed valve stem can be replaced separately. The operation is convenient and the output cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0013] Figure 1 This is a schematic diagram of the structure of an outdoor fire hydrant that is easy to repair according to the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of a clamping type rotating valve disc. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0016] See also Figure 1 , Figure 2The utility model provides a technical solution for an outdoor fire hydrant that is easy to maintain: its structure includes a bolt body 1 with a water inlet at the lower end, a valve chamber 2 is provided on the left and right parts of the bolt body 1, a water outlet interface 3 is provided at the output end of the valve chamber 2, a valve stem 4 is threadedly connected to the valve chamber 2, a clamping type rotating valve disc 5 that closes the inlet of the valve chamber 2 is provided at the bottom end of the valve stem 4, a reinforcing partition 6 is provided between the two valve chambers 2, the clamping type rotating valve disc 5 includes a valve disc body 501 and a rotating groove 502, the rotating groove 502 is provided at the center of the upper end of the valve disc body 501, the bottom end of the valve stem 4 is rotatably embedded in the rotating groove 502, an annular rotating groove 503 is provided on the outer side of the bottom of the valve stem 4, and telescopic grooves 504 corresponding to the annular rotating grooves 503 are provided on the inner walls of both sides of the rotating groove 502, and the telescopic grooves 504 are movable in the telescopic grooves 504 A clamping piece 505 is provided, one end of the clamping piece 505 is rotatably engaged with the annular rotating groove 503, a reset spring 506 is provided between the other end of the clamping piece 505 and the inner wall of the telescopic groove 504, internal threaded holes 507 communicating with the telescopic groove 504 are provided on both sides of the outer wall of the valve flap body 501, a screw 508 is connected to the internal thread of the internal threaded hole 507, the inner end of the screw 508 is in contact with the clamping piece 505, and a straight-shaped tool action groove 509 is provided at the outer end of the screw 508, the clamping piece 505 is an arc-shaped cylindrical structure, and there is a gap between the clamping piece 505 and the inner wall of the annular rotating groove 503, the inlet of the valve chamber 2 is communicated with the water inlet at the lower end of the bolt body 1, the center lines of the two valve stems 4 intersect in a V shape, and the height between the vertex and the bottom surface of the bolt body 1 is 25-45cm.

[0017] The valve disc and the valve stem are connected by a clamping and positioning method. The clamping parts 505 on both sides of the bottom of the valve stem 4 are clamped and positioned. When the valve stem 4 is deformed and worn, although the rotating groove 502 at the connection will be deformed accordingly, the clamping structure will not be affected due to the rotation gap. The screw 508 can still be unscrewed by a tool so that the screw 508 breaks contact with the clamping part 505, and the restoring spring 506 in the stretched state retracts, driving the clamping part 505 to retract into the telescopic groove 504, thereby releasing the restriction on the annular rotating groove 503. Finally, the valve disc body 501 can be directly separated from the valve stem 4, and the deformed valve stem 4 can be replaced separately. The operation is convenient and the output cost is reduced.

[0018] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0019] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An outdoor fire hydrant that is easy to maintain. Features: The structure comprises a bolt body (1) having a water inlet at the lower end, a valve chamber (2) being provided at the left and right parts of the bolt body (1), a water outlet interface (3) being provided at the output end of the valve chamber (2), a valve stem (4) being threadedly connected to the valve chamber (2), a clamping type rotating valve flap (5) being provided at the bottom end of the valve stem (4) for closing the inlet of the valve chamber (2), a reinforcing partition (6) being provided between the two valve chambers (2), the clamping type rotating valve flap (5) comprising a valve flap body (501) and a rotating groove (502), the rotating groove (502) being provided at the center of the upper end of the valve flap body (501), the bottom end of the valve stem (4) being rotatably embedded in the rotating groove (502), and a ring is provided on the outer side of the bottom of the valve stem (4). A circular rotating groove (503) is provided on the inner walls of both sides of the rotating groove (502), and telescopic grooves (504) corresponding to the annular rotating groove (503) are provided. A clamping member (505) is movably provided in the telescopic groove (504). One end of the clamping member (505) is rotatably engaged with the annular rotating groove (503), and a return spring (506) is provided between the other end of the clamping member (505) and the inner wall of the telescopic groove (504). Internal threaded holes (507) communicating with the telescopic groove (504) are provided on both sides of the outer wall of the valve flap body (501), and a screw rod (508) is connected to the internal thread of the internal threaded hole (507), and the inner end of the screw rod (508) is in contact with the clamping member (505).

2. An outdoor fire hydrant that is easy to maintain according to claim 1, Features: The outer end of the screw rod (508) is provided with a straight-shaped tool action groove (509).

3. An outdoor fire hydrant that is easy to maintain according to claim 1, Features: The clamping member (505) is an arc-shaped cylindrical structure.

4. An outdoor fire hydrant that is easy to maintain according to claim 1, Features: There is a gap between the clamping piece (505) and the inner wall of the annular rotating groove (503).

5. An outdoor fire hydrant that is easy to maintain according to claim 1, Features: The inlet of the valve chamber (2) is in communication with the water inlet at the lower end of the bolt body (1).

6. An outdoor fire hydrant that is easy to maintain according to claim 1, Features: The center lines of the two valve stems (4) intersect in a V shape.

7. An outdoor fire hydrant that is easy to maintain according to claim 1, Features: The height between the top and the bottom of the bolt body (1) is 25-45 cm.

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