Novel fire hydrant valve body

Abstract

The utility model relates to the technical field of fire fighting, in particular to a novel fire hydrant valve body which comprises a valve body casting and a water passing channel integrally formed in the valve body casting, a valve cover is detachably arranged at the top of the valve body casting, and a rotating rod position is further arranged at the top end of the valve cover in a penetrating mode. An opening and closing piece installation cavity is formed in the position, corresponding to the bottom of the rotating rod position, in the water passing channel, an inner sleeve body is detachably arranged on the inner wall of the opening and closing piece installation cavity, and after the opening and closing piece is installed in the opening and closing piece installation cavity, the inner sleeve body is attached to the outer wall of the opening and closing piece to keep closed during rotation.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting technical field, concretely relates to a novel fire hydrant valve body. BACKGROUND

[0002] The fire hydrant is also called as the fire hydrant, and the fire hydrant is a fixed fire-fighting equipment, the fire hydrant is installed on the water pipeline, is closed under normal circumstances, when fire occurs, the fire hydrant can be opened quickly through the switch on the fire hydrant, and is connected with the fire pipeline, a large amount of water is output through the fire hydrant to extinguish the fire, in order to control the opening and closing of the fire hydrant, the fire hydrant valve is installed in the fire hydrant, and the waterway in the fire hydrant is controlled by opening and closing the fire hydrant valve, the valve of the fire hydrant is composed of a valve body and an opening and closing device, the valve body is connected with the water outlet end and the water inlet end of the fire hydrant, and the rigidity is high and stable, and the opening and closing of the fire hydrant can be conveniently controlled by the opening and closing device.

[0003] Although the above-mentioned prior art can solve the corresponding technical problems, there are still some defects: if the opening and closing device assembled in the existing fire hydrant valve body is a spherical valve core, the spherical valve core rotates in the valve body cavity when opening and closing, and then a rotating torque is generated on the position contacted with the valve body, and after long-term use, the contact position is easily abraded due to the repeated rotation of the spherical valve core, and then the sealing performance is deteriorated, and water leakage is easily caused, at this time, the entire valve body needs to be disassembled and replaced for maintenance, the operation is complex, and the maintenance is inconvenient. UTILITY MODEL CONTENTS

[0004] The utility model aims at the defects and deficiencies of the prior art, and provides a novel fire hydrant valve body which is not easy to abrade and convenient to maintain.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a novel fire hydrant valve body, including valve body casting and water passage integrated in the valve body casting, the top of the valve body casting is detachably provided with a valve cover, the top end of the valve cover is also provided with a rotating rod position penetratingly, the water passage is provided with an opening and closing element mounting cavity at the bottom of the rotating rod position corresponding position, and the inner wall of the opening and closing element mounting cavity is detachably provided with an inner sleeve body, when the opening and closing element is mounted in the opening and closing element mounting cavity, the inner sleeve body is attached to the outer wall of the opening and closing element to keep closed during rotation.

[0006] Further improvement is that the inner sleeve body includes an upper silica gel sleeve detachably arranged on the inner surface of the opening and closing element mounting cavity and a lower wear-resistant rubber sleeve arranged on the lower inner surface of the opening and closing element mounting cavity.

[0007] Further improvement is that the upper silica gel sleeve is integrally formed with a penetrating hole on the top surface.

[0008] Further improvement is that the inner sleeve further comprises an upper pushing pad arranged on the bottom surface of the lower wear-resistant rubber sleeve.

[0009] Further improvement is that the upper pushing pad comprises a bottom plate arranged below the bottom surface of the lower wear-resistant rubber sleeve and fixedly connected with the lower surface of the installation cavity of the opening and closing member, and elastic side plates arranged between the edges of the bottom plate and the edges of the bottom surface of the lower wear-resistant rubber sleeve.

[0010] Further improvement is that the top end of the elastic side plate is further provided with an upper pushing plate covering the bottom surface of the lower wear-resistant rubber sleeve.

[0011] Further improvement is that the top surface of the bottom plate is further provided with a plurality of elastic arc-shaped pieces with the same height as the elastic side plates.

[0012] After the above technical scheme is adopted, the utility model has the beneficial effects that the utility model discloses installs the opening and closing member in the inner sleeve, and then in the using process, the inner sleeve can be fully covered on the surface of the spherical opening and closing member due to the certain elasticity, the high sealing property is kept, the irreversible wear phenomenon is avoided when the spherical opening and closing member directly rubs the valve body casting, the inner sleeve can be removed from the valve body casting for maintenance and replacement when the inner sleeve is worn, the water leakage prevention sealing performance is better, and the maintenance is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without the creative labor.

[0014] Fig. 1 It is the structure schematic view of the valve body front view section of the utility model;

[0015] Fig. 2 It is the structure schematic view of the inner sleeve front view section of the utility model;

[0016] Fig. 3 It is the structure schematic view of the upper pushing pad and the lower wear-resistant rubber sleeve front view section of the utility model. DETAILED DESCRIPTION

[0017] The utility model will be further explained in combination with the drawings and specific embodiments.

[0018] Referring to Figs. 1-3The technical scheme adopted in the embodiment is shown as follows: a new fire hydrant valve body, which comprises a valve body casting 1 and a water passage 2 integrally formed in the valve body casting 1, a valve cover 5 detachably arranged at the top of the valve body casting 1, a rotating rod position 3 penetratingly arranged at the top end of the valve cover 5, an opening and closing part mounting cavity arranged at the bottom of the rotating rod position 3 in the water passage 2, an inner sleeve body 4 detachably arranged on the inner wall of the opening and closing part mounting cavity, the inner sleeve body 4 comprising an upper silica gel sleeve 41 detachably arranged on the upper inner surface of the opening and closing part mounting cavity and a lower wear-resistant rubber sleeve 43 arranged on the lower inner surface of the opening and closing part mounting cavity, and when the opening and closing part is mounted in the opening and closing part mounting cavity, the outer wall of the opening and closing part is attached to the inner sleeve body 4 to keep closed during rotation, and when in use, the spherical opening and closing part, i.e., the valve core, is mounted in the opening and closing part mounting cavity, so that the outer wall of the opening and closing part is attached to the inner sleeve body 4, the upper surface of the opening and closing part is attached to the upper silica gel sleeve 41, and the lower surface of the opening and closing part is pressed and attached to the lower wear-resistant rubber sleeve 43, so that the lower wear-resistant rubber sleeve 43 and the upper silica gel sleeve 41 of the inner sleeve body 4 can fully wrap the surface of the spherical opening and closing part due to the elasticity of the lower wear-resistant rubber sleeve 43 and the upper silica gel sleeve 41, the high sealing performance is maintained, and the irreversible wear phenomenon caused by the hard friction between the spherical opening and closing part and the valve body casting 1 is avoided, and when the inner sleeve body 4 is worn, the valve cover 5 can be opened, the inner sleeve body 4 can be removed from the valve body casting 1 for maintenance and replacement, the water leakage sealing performance is better, and the maintenance is more convenient;

[0019] The upper silica gel sleeve 41 is integrally formed with a penetrating hole 42 on the top surface, which is beneficial to the penetration of the rotating rod through the upper silica gel sleeve 41 through the penetrating hole 42, and the installation is more convenient.

[0020] The inner sleeve body 4 further comprises an upper pushing pad 44 arranged on the bottom surface of the lower wear-resistant rubber sleeve 43, the upper pushing pad 44 comprises a bottom disc 442 arranged below the bottom surface of the lower wear-resistant rubber sleeve 43 and fixedly connected with the lower surface of the opening and closing part mounting cavity and elastic side plates 443 arranged between the edges of the bottom disc 442 and the bottom surface of the lower wear-resistant rubber sleeve 43, when the lower wear-resistant rubber sleeve 43 is worn and a gap is generated, the lower wear-resistant rubber sleeve 43 can be pushed upward by the elastic side plates 443, so that the lower wear-resistant rubber sleeve 43 can still be attached to the lower surface of the spherical opening and closing part to keep closed after wear, the sealing effect is further improved, and the wear period is prolonged.

[0021] The top end of the elastic side plate 443 is further provided with an upper pushing plate 441 covering the bottom surface of the lower wear-resistant rubber sleeve 43, which is beneficial to the uniformity of the upward pushing force, so that the attachment of the lower wear-resistant rubber sleeve 43 is better.

[0022] The top surface of the bottom disc 442 is further provided with a plurality of elastic arc-shaped pieces 444 with the same height as the elastic side plates 443, which are beneficial to the greater and more uniform upward pushing force of the arc-shaped pieces 444, and the attachment of the lower wear-resistant rubber sleeve 43 and the spherical opening and closing part is further improved.

[0023] The utility model discloses a working principle: the utility model uses, installs the spherical opening and closing part (i. e. valve core) in opening and closing part installation cavity, makes its outer wall adhere to the inner sleeve body 4, makes its upper surface adhere to the upper silica gel sleeve 41, lower surface extrusion and adhere to the lower wear -resistant rubber sleeve 43, and then in the use process, the lower wear -resistant rubber sleeve 43 of inner sleeve body 4 and upper silica gel sleeve 41 due to having certain elasticity, and then can fully be covered in the surface of spherical opening and closing part, while maintaining high closed property, avoid the phenomenon of irreversible wear and tear of spherical opening and closing part directly with valve body casting 1 hard friction, can open valve cover 5 when the inner sleeve body 4 wears, and through the maintenance replacement of removing inner sleeve body 4 from valve body casting 1, and the better water leakage prevention sealing performance is prevented, and more convenient maintenance.

[0024] The utility model discloses a structure of product, the model of each element is not the content of the utility model protection, also be the known technology, as long as the element of realizing the above-mentioned function of the utility model on the market can be as a kind of selection application. Therefore the model of element and the like parameters are not detailed in the utility model. The contribution of the utility model is that each element is combined scientifically together.

[0025] The above shows and describes the basic principle and main features of the utility model and its advantages, and the technical personnel of the industry should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description described in the explanation are only to illustrate the principle of the utility model, under the premise that the spirit and scope of the utility model are not departed from, the utility model will have various changes and improvements, and these changes and improvements all fall into the range of the utility model to be protected, and the protection range of the utility model is defined by the attached claims and its equivalents. The utility model is not detailed, and all are the known technology of the technical personnel of the field.

Claims

1. A novel fire hydrant valve body, comprising a valve body casting (1) and a water passage (2) integrally formed within the valve body casting (1), wherein a valve cover (5) is detachably provided on the top of the valve body casting (1), and a rotating rod position (3) is also provided through the top of the valve cover (5), and an opening / closing component mounting cavity is provided in the water passage (2) at a corresponding position at the bottom of the rotating rod position (3), characterized in that: The inner wall of the opening and closing component installation cavity is detachably provided with an inner sleeve (4). After the opening and closing component is installed in the opening and closing component installation cavity, it is kept closed by the inner sleeve (4) adhering to the outer wall of the opening and closing component during rotation.

2. The novel fire hydrant valve body according to claim 1, characterized in that: The inner sleeve (4) includes an upper silicone sleeve (41) detachably disposed on the inner surface of the opening and closing component mounting cavity and a lower wear-resistant rubber sleeve (43) disposed on the inner surface of the opening and closing component mounting cavity.

3. The novel fire hydrant valve body according to claim 2, characterized in that: The top surface of the upper silicone sleeve (41) is integrally formed with a through hole (42).

4. A novel fire hydrant valve body according to claim 2, characterized in that: The inner sleeve (4) also includes an upper push pad (44) disposed on the bottom surface of the lower wear-resistant rubber sleeve (43).

5. A novel fire hydrant valve body according to claim 4, characterized in that: The upper push pad (44) includes a chassis (442) disposed below the bottom surface of the lower wear-resistant rubber sleeve (43) and fixedly connected to the lower surface of the opening and closing component mounting cavity, and an elastic side plate (443) disposed between the edge of the chassis (442) and the edge of the bottom surface of the lower wear-resistant rubber sleeve (43).

6. A novel fire hydrant valve body according to claim 5, characterized in that: The top of the elastic side plate (443) is also provided with an upper push plate (441) that covers the bottom surface of the lower wear-resistant rubber sleeve (43).

7. A novel fire hydrant valve body according to claim 5, characterized in that: The top surface of the chassis (442) is also provided with several elastic arc-shaped plates (444) with the same height as the elastic side plate (443).

Images