Valve body convenient to maintain

Abstract

The utility model discloses a valve body convenient to maintain, which belongs to the technical field of valve bodies and is characterized by comprising a valve body, a valve clack, an upper valve rod and a lower valve rod, flange plates are mounted on the valve body, valve rod holes are symmetrically formed in the valve body, rotating seats are arranged at orifices of the valve rod holes, and the upper valve rod and the lower valve rod are rotatably mounted on the rotating seats through bearings. Inserting holes are symmetrically formed in the valve clack, threaded holes are formed in the valve clack, the upper valve rod and the lower valve rod, fixing bolts are in threaded connection with the interiors of the threaded holes, the inserting holes are located in the central axis of the valve clack, the upper valve rod and the lower valve rod are inserted into the inserting holes, a sealing piece is installed between the valve body and the valve clack, and annular grooves are formed in the upper valve rod and the lower valve rod. The rotary valve has the advantages that the upper valve rod and the lower valve rod can be conveniently taken out from the valve body, and the rotary valve is convenient to maintain.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of valve body, more specifically, it relates to a valve body convenient to maintain. BACKGROUND

[0002] The butterfly valve is a kind of valve with simple structure, light weight and quick opening and closing, is widely used in pipeline system, is used to control the flow of fluid, opening and closing, and is mainly composed of valve body, valve clapper, valve stem, sealing ring etc., and the flow path of fluid is adjusted by rotating valve clapper.

[0003] In the prior art, similar to the above-mentioned butterfly valve, the valve stem is usually rotatably installed on the valve body by using a bearing, and when the valve stem and the valve clapper are replaced and repaired, the valve stem and the bearing need to be taken off from the valve body with the aid of tools, and in some special environments, it is difficult for maintenance personnel to take them off from the valve body without auxiliary tools, which is not convenient for the maintenance of the valve body. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a valve body convenient to maintain, which has the advantages of facilitating the removal of the upper valve stem and the lower valve stem from the valve body and being convenient to maintain.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A valve body convenient to maintain, comprising a valve body, a valve clapper, an upper valve stem and a lower valve stem, a flange plate is installed on the valve body, valve stem holes are symmetrically arranged on the valve body, rotating seats are arranged on the hole openings of the valve stem holes, the upper valve stem and the lower valve stem are rotatably installed on the rotating seats by bearings, insertion holes are symmetrically arranged on the valve clapper, threaded holes are arranged on the valve clapper, the upper valve stem and the lower valve stem, fixing bolts are threadedly connected in the threaded holes, the insertion holes are located on the central axes of the valve clappers, the upper valve stem and the lower valve stem are inserted into the insertion holes, a sealing element is installed between the valve body and the valve clapper, annular grooves are arranged on the upper valve stem and the lower valve stem, the rotating seat is hollow, and a ejection assembly for conveniently ejecting the upper valve stem and the lower valve stem is installed in the rotating seat.

[0007] The ejection assembly comprises a jacking rod slidingly installed in the rotating seat, a protrusion located at one end of the jacking rod, a top ring located at the other end of the jacking rod, a rotating rod rotatably installed on the rotating seat and a top block located on the rotating rod, the top block and the protrusion are provided with inclined surfaces matched with each other, the rotating rod is threadedly connected on the rotating seat and rotatably connected with the top block through a bearing.

[0008] According to the advantages of the scheme, at least the following advantages are obtained: when the upper valve rod and the lower valve rod need to be disassembled, the fixing bolts that fix the valve disc on the upper valve rod and the lower valve rod are unscrewed, the rotating rod is rotated, the rotating rod drives the top block to move in the rotating seat, and the inclined surface on the top block is matched with the inclined surface on the convex block; continuous rotation of the rotating rod drives the convex block to drive the jacking rod to move outward from the rotating seat, and the upper valve rod and the lower valve rod are jacked out of the valve body through the top ring, so that the upper valve rod and the lower valve rod are conveniently disassembled, and the maintenance personnel can also disassemble the upper valve rod and the lower valve rod without using tools.

[0009] The utility model further sets up: the top ring includes adjusting lever, and the half circle ring is cooperated with ring groove, is equipped with the mounting hole on the jacking rod, be equipped with screw thread on the adjusting lever, the adjusting lever is fixed in the mounting hole through two fixed nuts.

[0010] According to the advantages of the scheme, at least the following advantages are obtained: the top ring is divided into adjusting lever and half circle ring, the position between the whole top ring and the ring groove is conveniently adjusted, the top ring can be arranged away from the upper valve rod and the lower valve rod when not in use, the influence on the rotation of the upper valve rod and the lower valve rod is avoided, the two fixed nuts can firmly fix the adjusting lever on the jacking rod, the position and the angle of the half circle ring are kept stable, and the loosening or deviation is avoided.

[0011] The utility model further sets up: be equipped with the horizontal plate in the rotating seat, the horizontal plate top surface and rotating seat inner top surface are fixedly installed with the sliding rod between, the side wall of convex block is equipped with the sliding plate, the sliding plate is slidably installed on the sliding rod, and the top surface of sliding plate and the inner top surface of rotating seat are installed with reset component.

[0012] According to the advantages of the scheme, at least the following advantages are obtained: through setting up the horizontal plate and the sliding rod, the sliding rod plays a guiding role to the jacking rod when the jacking rod and the convex block move outward from the rotating seat, and the stability of the sliding rod and the convex block when moving outward is also improved; when resetting is needed, the jacking rod and the convex block are driven to move in a direction by rotating the rotating rod, and the reset component can make the jacking rod and the convex block better return to the original position.

[0013] The utility model further sets up: the reset component is reset spring.

[0014] The utility model further sets up: being equipped with knob at the one end of rotating rod away from top block, the outer wall of knob is equipped with antiskid line.

[0015] According to the advantages of the scheme, at least the following advantages are obtained: the knob can conveniently rotate the rotating rod, the antiskid line on the outer wall of the knob can increase the friction when the operator holds, and the phenomenon of hand slipping is avoided.

[0016] The present invention is further configured such that: a plurality of circular holes are provided on the knob, the circular holes passing through the knob and surrounding the outer wall of the knob.

[0017] The advantages of this solution are at least as follows: the round hole on the knob allows the operator to easily insert a force-applying rod or other force-applying tool into the hole, thus making it easier for the operator to rotate the knob.

[0018] The present invention is further configured such that: the sealing element is a sealing ring made of silicone material, and the cross-section of the sealing ring is I-shaped.

[0019] The advantages of this solution are at least as follows: silicone, as a sealing material, has excellent chemical resistance, high temperature resistance, and elasticity. Its I-shaped cross-section can increase the sealing between the valve body and the pipeline during installation.

[0020] The present invention is further provided that: reinforcing ribs are installed between the rotating seat and the valve body, and between the valve body and the flange.

[0021] The advantages of this scheme are at least as follows: the addition of reinforcing ribs can increase the connection strength between the rotating seat and the valve body, and can also enhance the overall structure between the flange and the valve body, thereby improving the stability of the entire valve body.

[0022] In summary, this utility model has at least the following advantages:

[0023] 1. By setting the annular groove and ejector assembly, when it is necessary to disassemble the upper and lower valve stems, first unscrew the fixing bolts that fix the valve discs on the upper and lower valve stems, then rotate the rotating rod. The rotating rod drives the ejector block to move inside the rotating seat, and makes the inclined surface on the ejector block fit with the inclined surface on the protrusion. Continuous rotation of the rotating rod causes the protrusion to drive the ejector rod to move out of the rotating seat, and the upper and lower valve stems are ejected from the valve body through the top ring, which facilitates the disassembly of the upper and lower valve stems, allowing maintenance personnel to disassemble the upper and lower valve stems without using tools.

[0024] 2. By dividing the top ring into an adjusting rod and a semi-circular ring, it is convenient to adjust the position between the entire top ring and the ring groove. When not in use, the top ring can be set away from the upper and lower valve rods to avoid affecting the rotation of the upper and lower valve rods. The two fixing nuts can firmly fix the adjusting rod on the lifting rod, ensuring that the position and angle of the semi-circular ring remain stable and preventing loosening or displacement.

[0025] 3、By setting the horizontal plate and sliding rod, when the jack rod and the protrusion move to the outside of the rotating seat, the sliding rod guides the jack rod, and also increases the stability of the sliding rod and the protrusion when moving outward, and when resetting is needed, the reset assembly can make the jack rod and the protrusion better return to the original position by rotating the rotating rod to drive the top block to move. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the overall schematic view of the embodiment;

[0027] Figure 2 It is the overall exploded schematic view of the embodiment;

[0028] Figure 3 It is the overall perspective sectional view of the embodiment;

[0029] Figure 4 It is Figure 2 the enlarged schematic view of part A;

[0030] Figure 5 It is the exploded schematic view of the upper valve rod, the lower valve rod and the valve disc in the embodiment.

[0031] Reference signs: 1, valve body; 2, valve disc; 3, upper valve rod; 4, lower valve rod; 5, flange plate; 6, valve rod hole; 7, rotating seat; 8, insertion hole; 9, threaded hole; 10, fixing bolt; 11, sealing ring; 12, ring groove; 13, ejection assembly; 1301, jack rod; 1302, protrusion; 1303, top ring; 13031, adjusting rod; 13032, semicircular ring; 13033, fixing nut; 1304, rotating rod; 1305, top block; 1306, inclined surface; 14, horizontal plate; 15, sliding rod; 16, sliding plate; 17, reset spring; 18, knob; 19, circular hole; 20, reinforcing rib plate. DETAILED DESCRIPTION

[0032] The utility model will be further explained in detail in combination with the drawings.

[0033] A valve body convenient to maintain, as shown in Figure 1 , Figure 2 , including valve body 1, valve disc 2, upper valve rod 3 and lower valve rod 4, and the flange plate 5 is installed on the valve body 1, and the valve rod hole 6 is symmetrically arranged on the valve body 1, and the rotating seat 7 is arranged on the orifice of the valve rod hole 6, and the upper valve rod 3 and the lower valve rod 4 are rotatably installed on the rotating seat 7 through bearings, as Figure 5As shown, the valve disc 2 is symmetrically provided with a socket 8, the valve disc 2, the upper valve rod 3 and the lower valve rod 4 are all provided with threaded holes 9, the threaded holes 9 are threadedly connected with fixing bolts 10, the socket 8 is located on the central axis of the valve disc 2, the upper valve rod 3 and the lower valve rod 4 are inserted into the socket 8, a sealing element is installed between the valve body 1 and the valve disc 2, the sealing element is a sealing ring 11 made of silica gel, the cross section of the sealing ring 11 is in the shape of a capital I, reinforcing rib plates 20 are installed between the rotating seat 7 and the valve body 1 and between the valve body 1 and the flange plate 5.

[0034] As shown in the drawings, Figure 3 The upper valve rod 3 and the lower valve rod 4 are both provided with annular grooves 12, the rotating seat 7 is hollow, and an ejection assembly 13 is installed in the rotating seat 7 for conveniently ejecting the upper valve rod 3 and the lower valve rod 4.

[0035] The ejection assembly 13 comprises a jacking rod 1301 slidingly installed in the rotating seat 7, a protrusion 1302 located at one end of the jacking rod 1301, a top ring 1303 located at the other end of the jacking rod 1301, a rotating rod 1304 rotatably installed on the rotating seat 7, and a top block 1305 located on the rotating rod 1304, the top block 1305 and the protrusion 1302 are provided with inclined surfaces 1306 matched with each other, the rotating rod 1304 is threadedly connected with the rotating seat 7 and rotatably connected with the top block 1305 through a bearing.

[0036] As shown in the drawings, Figure 3 In order to make the protrusion 1302 and the jacking rod 1301 move more stably in the rotating seat 7, in some embodiments, a horizontal plate 14 is arranged in the rotating seat 7, a sliding rod 15 is fixedly installed between the top surface of the horizontal plate 14 and the inner top surface of the rotating seat 7, a sliding plate 16 is arranged on the side wall of the protrusion 1302, the sliding plate 16 is slidingly installed on the sliding rod 15, and a reset assembly is installed between the top surface of the sliding plate 16 and the inner top surface of the rotating seat 7. The reset assembly is a reset spring 17, when reset is needed, the direction of the top block 1305 is moved by rotating the rotating rod 1304, and the reset spring 17 can make the jacking rod 1301 and the protrusion 1302 better return to the original position.

[0037] In some embodiments, in order to facilitate the rotation of the rotating rod 1304, a knob 18 is arranged at the end of the rotating rod 1304 away from the top block 1305, and anti-skid lines are arranged on the outer wall of the knob 18. In other embodiments, in order to make the operator more conveniently rotate the knob 18, a plurality of round holes 19 are arranged on the knob 18, the round holes 19 pass through the knob 18 and are arranged around the outer wall of the knob 18.

[0038] As shown in the drawings, Figure 4As shown, in some preferred embodiments, in order to facilitate the adjustment of the position of the top ring 1303, the top ring 1303 comprises an adjusting rod 13031, a semicircular ring 13032 matched with the ring groove 12, a mounting hole is opened on the top lifting rod 1301, the adjusting rod 13031 is provided with a thread, and the adjusting rod 13031 is fixed in the mounting hole through two fixing nuts 13033.

[0039] The working process and beneficial effects of the utility model are as follows:

[0040] When it is necessary to disassemble the upper valve rod 3 and the lower valve rod 4, the fixing bolt 10, by which the valve clack 2 is fixed on the upper valve rod 3 and the lower valve rod 4, is unscrewed, at this time, the semicircular ring 13032 is placed into the ring groove 12 on the upper valve rod 3 and the lower valve rod 4 by adjusting the adjusting rod 13031, the semicircular ring 13032 and the fixing nut 13033, the rotating rod 1304 is rotated by rotating the knob 18, the rotating rod 1304 drives the top block 1305 to move in the rotating seat 7, and the inclined surface 1306 on the top block 1305 is attached to the inclined surface 1306 on the convex block 1302, the rotating rod 1304 is continuously rotated, the convex block 1302 drives the top lifting rod 1301 to move out of the rotating seat 7, and the upper valve rod 3 and the lower valve rod 4 are lifted out of the valve body 1 through the top ring 1303, thereby facilitating the disassembly of the upper valve rod 3 and the lower valve rod 4, and the maintenance personnel can also disassemble the upper valve rod 3 and the lower valve rod 4 without using tools.

[0041] The above is only the preferred embodiment of the utility model, and is not used for limiting the utility model, any modification, equivalent replacement, improvement, etc. made within the design concept of the utility model should be included in the protection scope of the utility model.

Claims

1. A valve body convenient to maintain, comprising a valve body (1), a valve disc (2), an upper valve rod (3) and a lower valve rod (4), a flange plate (5) is installed on the valve body (1), characterized in that: Symmetrically provided on the valve body (1) is a valve rod hole (6), a rotating seat (7) is provided at the hole mouth of the valve rod hole (6), the upper valve rod (3) and the lower valve rod (4) are both rotatably installed on the rotating seat (7) through bearings, symmetrically provided on the valve clack (2) is an insertion hole (8), the valve clack (2), the upper valve rod (3) and the lower valve rod (4) are all provided with threaded holes (9), the threaded holes (9) are threadedly connected with fixing bolts (10), the insertion hole (8) is located on the central axis of the valve clack (2), the upper valve rod (3) and the lower valve rod (4) are inserted into the insertion hole (8), a sealing element is installed between the valve body (1) and the valve clack (2), annular grooves (12) are provided on the upper valve rod (3) and the lower valve rod (4), the rotating seat (7) is hollow, and a ejection assembly (13) is installed in the rotating seat (7) for conveniently ejecting the upper valve rod (3) and the lower valve rod (4); The ejection assembly (13) comprises a jacking rod (1301) slidably installed in the rotating seat (7), a protruding block (1302) located at one end of the jacking rod (1301), a top ring (1303) located at the other end of the jacking rod (1301), a rotating rod (1304) rotatably installed on the rotating seat (7), and a top block (1305) located on the rotating rod (1304), the top block (1305) and the protruding block (1302) are provided with inclined surfaces (1306) matched with each other, the rotating rod (1304) is threadedly connected with the rotating seat (7) and rotatably connected with the top block (1305) through a bearing.

2. A valve body for facilitating maintenance according to claim 1, wherein: The top ring (1303) comprises an adjusting rod (13031) and a semicircular ring (13032) matched with the annular groove (12), the jacking rod (1301) is provided with an installation hole, the adjusting rod (13031) is provided with threads, and the adjusting rod (13031) is fixed in the installation hole through two fixing nuts (13033).

3. A valve body for facilitating maintenance according to claim 2, wherein: A horizontal plate (14) is arranged in the rotating seat (7), the horizontal plate (14) is fixedly installed between the top surface of the horizontal plate (14) and the inner top surface of the rotating seat (7), the side wall of the protruding block (1302) is provided with a sliding plate (16), the sliding plate (16) is slidably installed on the sliding rod (15), and a reset assembly is installed between the top surface of the sliding plate (16) and the inner top surface of the rotating seat (7).

4. A valve body for facilitating maintenance according to claim 3, wherein: The reset assembly is a reset spring (17).

5. The valve body of claim 1, wherein: A knob (18) is arranged at the end of the rotating rod (1304) away from the top block (1305), and the outer wall of the knob (18) is provided with anti-skid lines.

6. A valve body for facilitating maintenance according to claim 5, wherein: A plurality of round holes (19) are arranged on the knob (18), the round holes (19) pass through the knob (18) and are arranged around the outer wall of the knob (18).

7. A valve body for facilitating maintenance according to claim 5, wherein: The sealing element is a sealing ring (11) made of silica gel, and the cross section of the sealing ring (11) is in the shape of an H.

8. A valve body for facilitating maintenance according to claim 7, wherein: Reinforcing rib plates (20) are arranged between the rotating seat (7) and the valve body (1) and between the valve body (1) and the flange plate (5).

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