Anti-misuse indoor fire hydrant

Abstract

The utility model discloses an anti-misuse indoor fire hydrant, which relates to the technical field of fire hydrants and comprises a hydrant body, a hydrant cover and an inner valve rod. A movable cavity for the outer valve rod to extend and move is formed between the inner valve rod and the interior of the hydrant cover; a clamping groove is formed in the top end of the inner valve rod, and a clamping block embedded in the clamping groove is arranged at the bottom end of the outer valve rod so that the outer valve rod can rotate to drive the inner valve rod to rotate. A hand wheel is fixedly mounted at the top end of the outer valve rod; the limiting assembly is used for preventing the outer valve rod and the hand wheel from driving the clamping block to extend into the clamping groove due to self weight in the movable cavity; a baffle ring is fixedly arranged in the movable cavity and arranged on the periphery of the outer valve rod, and a protruding ring used for preventing the outer valve rod from being separated from the baffle ring is fixedly arranged on the outer side of the outer valve rod. The anti-misuse valve has the advantages that the hand wheel is not separated, additional searching and assembling are not needed, the limiting assembly is arranged, only the outer valve rod, the clamping block and the convex ring can rotate when only the hand wheel is rotated, the inner valve rod cannot be driven to rotate, the anti-misuse effect is provided, and people are limited to open fire water in non-emergency.

Description

Technical Field

[0001] The utility model relates to the technical field of fire hydrants, and more specifically to an indoor fire hydrant that can prevent misuse. Background Art

[0002] Fire hydrants, also known as fire hydrants, are a type of fixed fire-fighting facility, usually installed in public buildings, streets, residential areas, factories and other places. They are the main equipment for providing fire-fighting water in case of fire; its main components include a hydrant body, a valve body, a water outlet and a fire hose interface, etc. The structure can be as shown in (such as application number: CN202020074977.9, an explosion-proof fire hydrant);

[0003] The existing fire hydrant (application number: CN202020853181.3, a quick-detachable fire hydrant for fire-fighting engineering), which states: "Align the first through hole and the second through hole, insert the rotating rod, rotate the rotating handle, and the rotating handle drives the valve stem to rotate, thereby opening the fire hydrant, which is convenient for preventing criminals from opening the fire hydrant to obtain fire-fighting water", that is, by removing the "rotating handle" and then installing it when using it, a separate method is adopted. When a fire actually occurs, it is necessary to find and press it separately, which may affect the opening efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the above technical problems and provide an indoor fire hydrant that can prevent misuse.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] The utility model provides an indoor fire hydrant for preventing misuse, comprising a hydrant body, on which a hydrant cover and an inner valve stem are respectively arranged;

[0007] An activity cavity is provided between the inner valve stem and the inside of the bolt cover for the outer valve stem to extend and move;

[0008] A slot is provided at the top of the inner valve stem, and a block is provided at the bottom of the outer valve stem to fit into the slot, so that the outer valve stem can rotate to drive the inner valve stem to rotate;

[0009] A hand wheel is fixedly mounted on the top of the outer valve stem, and also includes a limit assembly for preventing the outer valve stem and the hand wheel from driving the clamping block into the clamping groove due to their own weight in the movable cavity;

[0010] A retaining ring is fixedly arranged in the movable cavity and arranged on the periphery of the outer valve stem, and a convex ring for preventing the outer valve stem from being separated from the retaining ring is fixedly arranged on the outer side of the outer valve stem.

[0011] As a preferred technical solution of the present utility model, the limiting component is a supporting component and / or a blocking component.

[0012] As a preferred technical solution of the utility model, the support assembly includes a deep groove extending to the inner valve stem in the card slot, and an elastic member partially exposed from the card slot is fixed in the deep groove, and the top of the elastic member is pressed against the bottom of the card block to shrink under pressure.

[0013] As a preferred technical solution of the utility model, the blocking component includes a slot provided on the outside of the bolt cover and penetrating into the movable cavity, a baffle is movable in the slot, the movable baffle is used to block or non-block the card block from moving down to the card slot, a pull plate fixed to the baffle is provided on the outside of the bolt cover, a protrusion fixed to the baffle to prevent the baffle from detaching from the slot is provided in the movable cavity, an expansion slot is connected in the slot for the protrusion to extend into, and the elastic member is located below the baffle.

[0014] As a preferred technical solution of the utility model, anti-slip grooves are provided on the outer side of the pull plate.

[0015] The beneficial effects of the utility model are as follows:

[0016] By setting the inner valve stem 3 and the outer valve stem 4, the outer valve stem 4 will not be separated from the active cavity 8 under the action of the retaining ring 11 and the convex ring 12, and there is no need to find another assembly. The set limit assembly can be used to prevent the outer valve stem 4, the hand wheel 5 and the block 6 from driving the block 6 to extend into the slot 7 through their own gravity, that is, when only the hand wheel 5 is turned, only the outer valve stem 4, the block 6 and the convex ring 12 rotate, and the inner valve stem 3 will not be driven to rotate, providing an anti-misuse effect and restricting personnel from opening the fire water for non-emergency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of the local structure A.

[0019] Figure numerals: bolt body -1, bolt cover -2, inner valve stem -3, outer valve stem -4, handwheel -5, block -6, slot -7, movable cavity -8, support assembly -9, blocking assembly -10, baffle ring -11, convex ring -12, deep groove -91, elastic member -92, slot -101, baffle -102, pull plate -103, protrusion -104. DETAILED DESCRIPTION

[0020] Embodiment 1:

[0021] like Figures 1-2 As shown, this embodiment proposes: an anti-misuse indoor fire hydrant, including a hydrant body 1, on which a hydrant cover 2 and an inner valve stem 3 are respectively provided (the composition and connection structure of which can be as follows Figure 1 The corresponding structure shown or in the background technology "CN202020074977.9" is the prior art);

[0022] An active cavity 8 (such as 4) is provided between the inner valve stem 3 and the inner part of the bolt cover 2 for the outer valve stem 4 to extend into and move. Figure 1 As shown, an active cavity 8 is provided inside the bolt cover 2, which is equivalent to lifting the original bolt cover 2, so that an active cavity 8 is formed between the top of the inner valve stem 3 and the inside of the lifted bolt cover 2, and at the same time, the outer valve stem 4 is inserted into the top of the bolt cover 2 and moves in the active cavity 8);

[0023] A retaining ring 11 is fixedly arranged in the movable cavity 8 and is arranged on the periphery of the outer valve stem 4. A convex ring 12 (such as a protruding ring 12) is fixedly arranged on the outer side of the outer valve stem 4 to prevent the outer valve stem 4 from escaping from the retaining ring 11. Figure 2 As shown, a retaining ring 11 is fixedly arranged at the upper end of the inner wall of the movable cavity 8, and a convex ring 12 is fixedly arranged at the lower end of the outer periphery of the outer valve stem 4. When the outer valve stem 4 moves upward, the retaining ring 11 will be blocked and restricted by the convex ring 12 to prevent it from falling out; the fixing can be formed in one piece, etc.);

[0024] A card slot 7 is provided at the top of the inner valve stem 3, and a card block 6 is provided at the bottom of the outer valve stem 4, which is embedded in the card slot 7, so that the outer valve stem 4 can rotate to drive the inner valve stem 3 to rotate, that is, when the outer valve stem 4 moves downward in the active cavity 8, the card block 6 can be driven to be placed in the card slot 7, and when the outer valve stem 4 rotates, the inner valve stem 3 can be synchronously driven to rotate to perform the opening and closing operation;

[0025] A hand wheel 5 is fixedly mounted on the top of the outer valve stem 4. According to the above, the outer valve stem 4 can be driven to rotate by rotating the hand wheel 5.

[0026] It also includes a limit assembly for preventing the outer valve stem 4 and the hand wheel 5 from driving the clamping block 6 to extend into the clamping groove 7 due to their own weight in the movable cavity 8, that is, when only the hand wheel 5 is rotated, only the outer valve stem 4, the clamping block 6 and the convex ring 12 will rotate, and the inner valve stem 3 will not be driven to rotate, providing an anti-misuse effect and limiting personnel from opening the fire water for non-emergency use;

[0027] Wherein, the limiting component is a supporting component 9;

[0028] In order to implement the above-mentioned support assembly 9, it is proposed that Figure 2 As shown, the specific structure and composition of the support assembly 9 can be as follows: the support assembly 9 includes a deep groove 91 (such as Figure 2 As shown, the deep groove 91 continues to extend downward from the bottom end of the inner wall of the slot 7 into the inner valve stem 3, thereby forming);

[0029] An elastic member 92 (the elastic member 92 may be a spring, etc.) is fixedly installed in the deep groove 91, with a portion of the elastic member 92 exposed from the card slot 7. The top end of the elastic member 92 is pressed against the bottom end of the card block 6 and contracts (the bearing pressure of the elastic member 92 will not cause the card block 6 to enter the card slot 7). When downward pressure is applied to the hand wheel 5, the card block 6 can be pressed into the card slot 7, and at the same time, a rotational force is provided to drive the inner valve stem 3 to rotate.

[0030] Embodiment 2:

[0031] like Figures 1-2 As shown, the difference between it and embodiment 1 is that: the limiting component is a blocking component 10,

[0032] In order to implement the above-mentioned blocking assembly 10, it is proposed that Figure 2 As shown, the specific structure and composition of the blocking component 10 can be as follows: the blocking component 10 includes a bolt cover 2 having a slot 101 (such as Figure 2 As shown, the right end of the bolt cover 2 penetrates into the active cavity 8);

[0033] A baffle 102 is movable in the slot 101, and the movable baffle 102 is used to block or not block the card block 6 from moving down to the card slot 7 (such as Figure 2 As shown, the baffle 102 can move left and right, so that the baffle 102 blocks or does not block the card block 6 to provide a guarantee of preventing misuse and normal use);

[0034] The bolt cover 2 is provided with a pull plate 103 fixed to the baffle 102, which is used for grasping by hand to apply force to the left and right to drive the pull plate 103 to move;

[0035] The outer side of the pull plate 103 is provided with anti-slip grooves to increase the friction force and facilitate the displacement of the pull plate 103;

[0036] A protrusion 104 is provided in the movable cavity 8 and is fixed to the baffle 102 to prevent the baffle 102 from escaping from the slot 101. The slot 101 is connected to an expansion slot for the protrusion 104 to extend into (the protrusion 104 can be located on the periphery of the top end of the baffle 102. At the same time, in order not to block the block 6, the outer valve stem 4, and the convex ring 12 when they move downward, a space is provided for the protrusion 104 to enter the expansion slot).

[0037] Embodiment 3:

[0038] like Figures 1-2 As shown, the difference between it and embodiment 1 or embodiment 2 is that: the limiting component is a supporting component 9 and a blocking component 10 (such as Figure 2 As shown, the support component 9 and the blocking component 10 can be set at the same time to provide a double restriction effect and improve the ability to prevent misuse); the elastic member 92 is located below the baffle 102, providing a reasonable setting and matching position.

[0039] 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.

[0040] 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 indoor fire hydrant for preventing misuse, comprising a hydrant body (1), on which a hydrant cover (2) and an inner valve stem (3) are respectively provided; It is characterized in that An active cavity (8) is provided between the inner valve stem (3) and the inside of the bolt cover (2) for the outer valve stem (4) to extend and move; The top end of the inner valve stem (3) is provided with a slot (7), and the bottom end of the outer valve stem (4) is provided with a block (6) engaged in the slot (7), so as to provide the outer valve stem (4) with a rotational force to drive the inner valve stem (3) to rotate; A hand wheel (5) is fixedly mounted on the top of the outer valve stem (4), and also includes a limit assembly for preventing the outer valve stem (4) and the hand wheel (5) from driving the clamping block (6) into the clamping groove (7) due to their own weight in the movable chamber (8); A retaining ring (11) is fixedly arranged in the movable chamber (8) and is arranged on the periphery of the outer valve stem (4). A convex ring (12) is fixedly arranged on the outer side of the outer valve stem (4) for preventing the outer valve stem (4) from escaping from the retaining ring (11).

2. The anti-misuse indoor fire hydrant according to claim 1, characterized in that: The limiting component is a supporting component (9) and / or a blocking component (10).

3. The anti-misuse indoor fire hydrant according to claim 2, characterized in that: The support assembly (9) comprises a deep groove (91) extending from the card slot (7) to the inner valve stem (3), an elastic member (92) partially exposed from the card slot (7) is fixed in the deep groove (91), and the top end of the elastic member (92) is pressed against the bottom end of the card block (6) to shrink under pressure.

4. The anti-misuse indoor fire hydrant according to claim 3, characterized in that: The blocking assembly (10) comprises a slot (101) provided outside the bolt cover (2) and penetrating into the movable cavity (8); a baffle (102) is movable inside the slot (101); the movable baffle (102) is used to block or not block the card block (6) from moving down to the card slot (7); a pull plate (103) is provided outside the bolt cover (2) and fixed to the baffle (102); a protrusion (104) is provided inside the movable cavity (8) and fixed to the baffle (102) to prevent the baffle (102) from escaping from the slot (101); an expansion slot is provided in the slot (101) for the protrusion (104) to extend into; and an elastic member (92) is located below the baffle (102).

5. The anti-misuse indoor fire hydrant according to claim 4, characterized in that: The outer side of the pull plate (103) is provided with anti-slip grooves.

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