Manual gate valve casting valve body

Abstract

The utility model discloses a casting valve body of a manual gate valve, and relates to the field of casting valve bodies. The manual gate valve casting valve body comprises a valve seat and connecting flange pipes integrally formed on the two sides of the valve seat, each connecting flange pipe comprises a pipe body, a fixing flange ring and a connector, the connectors are arranged in a step shape, and a plurality of U-shaped fixing holes distributed in an annular array mode are formed in the outer portion of each fixing flange ring. According to the manual gate valve casting valve body, when the gate valve is connected with an external pipeline, the connecting port is inserted into the connected pipeline according to the inner diameters of different specifications of the pipeline, and the sealing rubber is arranged outside the connecting port, so that the two sides of the sealing rubber abut against a flange and a fixed flange ring of the external pipeline; at the moment, a bolt penetrates through a fixing hole in an external pipeline flange and extends into the U-shaped fixing hole to be fixed, so that the gate valve is suitable for sealing connection of pipelines with different pipe diameters, and the gate valve has better adaptability.

Description

TECHNICAL FIELD

[0001] The utility model relates to casting valve body technical field, concretely is a kind of manual gate valve casting valve body. BACKGROUND

[0002] Manual gate valve is a kind of gate valve by manual control valve core to carry out opening operation, the opening and closing member of gate valve is gate, the movement direction of gate is perpendicular to fluid direction, gate valve can only be opened and closed, cannot be adjusted and throttled, therefore have strong sealing effect.

[0003] And now the gate valve body when using, the connection flange aperture and bolt mounting hole position of its end are fixed, this makes in actual use, only applicable to the pipe flange of matching size to connect, lead to the overall adaptability is poor, therefore specially provide a kind of manual gate valve casting valve body to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of prior art, the utility model provides a kind of manual gate valve casting valve body, solve the problem that now the gate valve body when using, the connection flange aperture and bolt mounting hole position of its end are fixed, this makes in actual use, only applicable to the pipe flange of matching size to connect, lead to the overall adaptability is poor.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of manual gate valve casting valve body, including valve seat and the connection flange pipe integrally formed in the two sides of valve seat, the connection flange pipe includes;

[0006] Pipe body, integrally cast to be formed in the two ends of valve seat, and with pipe body valve seat inside form the fluid chamber of intercommunication;

[0007] Fixed flange ring, integrally formed in the outer end of pipe body;

[0008] Connection port, integrally formed in the outside of fixed flange ring, the connection port is arranged in echelon, for the pipe of different pipe diameter to carry out sealing connection;

[0009] U-shaped fixed hole, it is set up in the outside of fixed flange ring, applicable to the pipe flange of different size to assemble.

[0010] Preferably, the valve seat includes valve core seat and the valve core upper passage integrally formed in the top of valve core seat, the top of the valve core upper passage integrally forms valve cover installation flange ring.

[0011] Preferably, the valve core upper passage and valve cover installation flange ring integrally formed setting have reinforced explosion-proof ring.

[0012] Preferably, the valve core upper passage and pipe body are provided with side-pulling reinforcing rib.

[0013] Preferably, the top of the valve cover mounting flange ring is provided with fixing holes, the fixing holes are in multiple groups and are arranged in a ring shape along the axis of the valve core upper passage.

[0014] Preferably, the bottom of the valve core seat is provided with a horizontal support part, the bottom of the two groups of fixing flange rings is provided with auxiliary support parts, and the horizontal support part and the auxiliary support parts are flush with the bottom, and together form a valve body support unit.

[0015] The utility model discloses a manual gate valve casting valve body, which has the following beneficial effects: the connecting port is integrally formed on the fixed flange ring of the two-end pipe body, and the connecting port is arranged in a stepped shape; a plurality of U-shaped fixing holes are arranged in an annular array on the outside of the fixed flange ring; when the gate valve is connected to the external pipeline, the connecting port is inserted into the internal pipeline according to the different specifications of the internal diameter of the pipeline; sealing rubber is arranged on the outside of the connecting port; the sealing rubber on both sides is abutted with the flange of the external pipeline and the fixed flange ring; the bolt is inserted into the fixing hole on the flange of the external pipeline, and the bolt is extended into the U-shaped fixing hole for fixation; the sealing connection of the pipeline with different diameters is realized; and the gate valve has better adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, 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 also be obtained according to these drawings without creative labor.

[0017] Fig. 1 It is a whole top structure schematic view of the utility model;

[0018] Fig. 2 It is a whole top structure schematic view of the utility model;

[0019] Fig. 3 It is a whole internal structure sectional view of the utility model.

[0020] In the drawings: 1, valve seat; 11, valve core seat; 12, valve core upper passage; 13, valve cover mounting flange ring; 14, fixing hole; 15, reinforced explosion-proof ring; 16, side-pulling reinforcing rib; 17, horizontal support part; 2, connecting flange pipe; 21, pipe body; 22, fixed flange ring; 23, U-shaped fixing hole; 24, connecting port; 25, auxiliary support part. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model is clearly and completely described, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] The utility model discloses a hand -operated gate valve casting valve body, solved the gate valve valve body at using, its end's connecting flange caliber and bolt mounting hole position are all fixed, this makes at actual use, only applicable to the pipe flange of matched size is connected, leads to the overall adaptability is poor the problem of problem.

[0023] In order to better understand the above technical scheme, the above technical scheme will be described in detail in the following with the description of the drawings and specific embodiments.

[0024] The utility model discloses a hand -operated gate valve casting valve body.

[0025] Embodiment one,

[0026] According to the accompanying Figs. 1-3 As shown, including valve seat 1 and the connecting flange pipe 2 integrally formed on both sides of valve seat 1, connecting flange pipe 2 includes;

[0027] Pipe body 21, integrally cast to both ends of valve seat 1, and with pipe body 21 valve seat 1 inside form the fluid chamber of intercommunication;

[0028] Fixed flange ring 22, integrally formed on the outer end of pipe body 21;

[0029] Connecting port 24, integrally formed on the outside of fixed flange ring 22, connecting port 24 is arranged in stepped shape, for the sealing connection of different pipe diameter pipe;

[0030] U type fixed hole 23, is set up in the outside of fixed flange ring 22, is suitable for the pipe flange of different size and is assembled.

[0031] More specifically, valve seat 1 includes valve core seat 11 and integrally formed on the top of valve core seat 11 valve core upper passage 12, the top of valve core upper passage 12 integrally forms valve cover installation flange ring 13.

[0032] More specifically, the valve core upper passage 12 and the valve cover installation flange ring 13 integrally form a reinforced explosion-proof ring 15 between them, to avoid the valve core from bursting due to excessive pipe pressure.

[0033] More specifically, the side-pulling reinforcing ribs 16 are arranged between the valve core upper channel 12 and the pipe body 21, effectively preventing the outer end of the pipe body 21 at both ends from being bent and deformed downward.

[0034] More specifically, bolt holes 14 are arranged on the top of the valve cover mounting flange ring 13, the bolt holes 14 are arranged in multiple groups and are arranged in a ring shape along the axis of the valve core upper channel 12.

[0035] In this embodiment, a hand-operated gate valve cast valve body is provided, which is characterized in that a connecting port 24 is integrally formed on the fixed flange ring 22 of the pipe body 21 at both ends, and the connecting port 24 is arranged in a stepped shape. At the same time, a plurality of U-shaped fixing holes 23 arranged in a ring shape are arranged on the outside of the fixed flange ring 22. When the gate valve is connected to the external pipeline, according to the different specifications of the pipeline, the connecting port 24 is inserted into the pipeline connected inside, and the sealing rubber is arranged outside the connecting port 24, so that the sealing rubber on both sides is in contact with the flange of the external pipeline and the fixed flange ring 22. At this time, the bolt is inserted into the fixing hole on the flange of the external pipeline, and the bolt is extended into the U-shaped fixing hole 23 for fixation. This is suitable for sealing and connecting pipelines of different diameters, so that the gate valve has better adaptability.

[0036] Embodiment two,

[0037] According to the drawings Figs. 1-3 As shown, it comprises a valve seat 1 and a connecting flange pipe 2 integrally formed on both sides of the valve seat 1, the connecting flange pipe 2 comprises;

[0038] The pipe body 21 is integrally cast on both ends of the valve seat 1, and forms a fluid chamber in communication with the inside of the pipe body 21 and the valve seat 1;

[0039] The fixed flange ring 22 is integrally formed on the outer end of the pipe body 21;

[0040] The connecting port 24 is integrally formed on the outside of the fixed flange ring 22, and the connecting port 24 is arranged in a stepped shape for sealing and connecting pipelines of different diameters;

[0041] The U-shaped fixing hole 23 is arranged on the outside of the fixed flange ring 22, which is suitable for assembling the flanges of pipelines of different sizes.

[0042] On the basis of embodiment one, more specifically, the bottom of the valve core seat 11 is provided with a horizontal support part 17, and the bottom of the two groups of fixed flange rings 22 is provided with an auxiliary support part 25, and the horizontal support part 17 and the bottom of the auxiliary support part 25 are flush, and together form a valve body support unit.

[0043] The device is in contact with the bottom of the assembly station through the horizontal supporting part 17 and the auxiliary supporting part 25 when the pipeline connection assembly is carried out, so that the gate valve can be supported by the valve body supporting unit, thereby being stably placed, and additional stable supports do not need to be assembled during installation, and use is more convenient.

[0044] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The skilled person in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A hand-operated gate valve cast body comprising a valve seat (1) and a connecting flange pipe (2) integrally formed on both sides of the valve seat (1), characterized in that, The connecting flange pipe (2) comprises; The pipe body (21) is integrally cast on both ends of the valve seat (1) and forms a fluid chamber in communication with the inside of the pipe body (21) and the valve seat (1); The fixed flange ring (22) is integrally formed on the outer end of the pipe body (21); The connecting port (24) is integrally formed on the outside of the fixed flange ring (22), which is arranged in a stepped shape for sealing connection of pipes with different diameters; The U-shaped fixing hole (23) is provided on the outside of the fixed flange ring (22) and is suitable for pipes with different sizes.

2. A cast valve body for a manual gate valve according to claim 1, wherein: The valve seat (1) comprises a valve core seat (11) and a valve core upper passage (12) integrally formed on the top of the valve core seat (11), and the top of the valve core upper passage (12) is integrally formed with a valve cover mounting flange ring (13).

3. A cast valve body for a manual gate valve according to claim 2, wherein: The valve core upper passage (12) and the valve cover mounting flange ring (13) are integrally formed with a reinforced explosion-proof ring (15).

4. A cast valve body for a manual gate valve according to claim 2, wherein: The valve core upper passage (12) and the pipe body (21) are provided with a side-pulling reinforcing rib (16).

5. A cast valve body for a manual gate valve according to claim 1, wherein: The top of the valve cover mounting flange ring (13) is provided with bolt holes (14), which are arranged in multiple groups and distributed in a ring shape along the axis of the valve core upper passage (12).

6. A cast valve body for a manual gate valve according to claim 2, wherein: The bottom of the valve core seat (11) is provided with a horizontal support part (17), and the bottom of the two groups of fixed flange rings (22) is provided with auxiliary support parts (25), which are flush with the bottom of the horizontal support part (17) and auxiliary support parts (25), and together form a valve body support unit.

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