Horizontal full-bore bidirectional sealing eccentric half ball valve

Abstract

The utility model discloses a horizontal full-bore bidirectional sealing eccentric half ball valve, and relates to the technical field of valves. The horizontal full-bore bidirectional sealing eccentric half ball valve comprises a valve body, an operation unit and a valve seat, the operation unit and the valve seat are located on the inner side of the valve body, the valve body is provided with an upper sealing flange, the upper sealing flange is provided with an upper sealing cover, the upper sealing cover is provided with a limiting groove, the operation unit comprises a valve rod, a valve element and a positioning shaft, and the valve element is arranged on the valve rod. The outer side of the valve rod is connected with a limiting block, and the limiting block is connected to the inner side of the limiting groove in a clamped mode. According to the horizontal full-bore bidirectional sealing eccentric half ball valve, the two valve seats are arranged, the bidirectional sealing function of the horizontal full-bore bidirectional sealing eccentric half ball valve is achieved through matching of the sealing seats and the sealing face of the valve element, one valve seat works, the other valve seat is standby, when the sealing effect of one valve seat is reduced, the other valve seat can be switched in time, and therefore the sealing effect of the valve seat is improved. Medium leakage is effectively prevented, and the sealing performance and reliability of the valve are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely is horizontal full bore bidirectional sealing eccentric half ball valve. BACKGROUND

[0002] In industrial pipeline system, as the important part of controlling fluid on-off and flow, the sealing performance and flow capacity of valve are very important.

[0003] The traditional half ball valve is frequently opened in the use process, and the sealing effect is reduced due to the frequent friction between valve seat and valve disc, which influences the sealing effect, the traditional half ball valve is only provided with a group of valve seats, the maintenance frequency is higher, the production efficiency is influenced, the operation difficulty and cost are increased.

[0004] The traditional half ball valve is frequently opened in the use process, and the sealing effect is reduced, which influences the sealing effect, the traditional half ball valve is only provided with a group of valve seats, the maintenance frequency is higher, the production efficiency is influenced, and the operation difficulty and cost are increased. SUMMARY

[0005] In view of the defects of the prior art, the horizontal full bore bidirectional sealing eccentric half ball valve is provided, which solves the problems that the traditional half ball valve is frequently opened in the use process, the sealing effect is reduced, the sealing effect is influenced, the traditional half ball valve is only provided with a group of valve seats, the maintenance frequency is higher, the production efficiency is influenced, and the operation difficulty and cost are increased.

[0006] To achieve the above purpose, the utility model discloses the following technical scheme: horizontal full bore bidirectional sealing eccentric half ball valve, including valve body, operating unit and valve seat, operating unit and valve seat are located in the inside of valve body, the valve body is provided with upper sealing flange, the upper sealing flange is provided with upper sealing cover, the upper sealing cover is opened in the limit groove, the operating unit includes:

[0007] Valve stem, the outer side of valve stem is connected with the limiting block, the limiting block is connected in the inside of limit groove, and the limit groove is used for limiting the rotation angle of valve stem;

[0008] Valve core, the valve core is sleeved on the outer side of valve stem;

[0009] Positioning shaft, the positioning shaft is inserted in the inside of valve core;

[0010] Valve seat, the valve seat is provided with two groups, and is symmetrically distributed on the two sides of valve core, and the valve seat can be sealed with valve core, when the sealing effect of a group of valve seats is reduced, the valve stem drives the valve core to rotate 180 ° and switches to the sealing connection with another group of valve seats.

[0011] Preferably, a sealing packing is inserted into the inner side of the upper sealing flange.

[0012] Preferably, a lower sealing flange is provided at the bottom of the valve body, and a lower sealing cover is provided on the outside of the lower sealing flange.

[0013] Preferably, the valve body is provided with connecting flanges 13 at both ends, the inner side of the connecting flange is provided with a limit ring, the outer side of the connecting flange is provided with a groove, and the inner side of the groove is provided with annularly distributed screw holes.

[0014] Preferably, the valve stem is inserted into the inner side of the sealing packing, a handle is connected to the top of the valve stem, and a mating gear is connected to the bottom of the valve stem.

[0015] Preferably, a toothed sleeve is provided on the inner side of the valve core, the toothed sleeve is sleeved on the outer side of the mating gear, the bottom of the valve core is sleeved on the outer side of the positioning shaft, and the positioning shaft is inserted into the inner side of the lower sealing flange.

[0016] Preferably, the valve seat is provided with a sealing seat and a retaining seat, the sealing seat is engaged with a limiting retaining ring, and the inner side of the sealing seat is provided with a sealing surface corresponding to the valve core.

[0017] Preferably, the card holder is snapped into the inner side of the card slot, a fixing screw is inserted into the card holder and the fixing screw is inserted into the screw hole, and an abutment ring that abuts against the sealing seat is connected to the inner side of the card holder.

[0018] This utility model discloses a horizontal full-bore bidirectional sealing eccentric hemispherical valve. Compared with the prior art, the beneficial effects of this utility model are: it is equipped with two sets of valve seats, and the bidirectional sealing function of the horizontal full-bore bidirectional sealing eccentric hemispherical valve is realized through the cooperation of the sealing seat and the sealing surface of the valve core. One set of valve seats is working, and the other set of valve seats is on standby. When the sealing effect of one set of valve seats decreases, it can switch to the other set of valve seats in time, effectively preventing media leakage and improving the sealing performance and reliability of the valve. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the valve body of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the sealing cap of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the operating unit of this utility model;

[0023] Figure 5 This is a schematic diagram of the valve seat of this utility model.

[0024] Fig. 1, valve body; 11, upper sealing flange; 111, upper sealing cover; 1111, limiting groove; 112, sealing packing; 12, lower sealing flange; 121, lower sealing cover; 13, connecting flange; 131, limiting ring; 132, clamping groove; 133, screw hole; 2, operation unit; 21, valve rod; 211, handle; 212, limiting block; 213, butt gear; 22, valve core; 221, sleeve gear ring; 23, positioning shaft; 3, valve seat; 31, sealing seat; 311, sealing surface; 32, clamping seat; 321, fixing screw; 322, abutting ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only 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 those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] The horizontal full-bore bidirectional sealing eccentric half-ball valve provided by the embodiments of the application solves the problem that the traditional half-ball valve needs to be frequently opened during use, which leads to a decline in sealing effect, affects the sealing effect, the traditional half-ball valve is only provided with one set of valve seat, the maintenance frequency is high, the production efficiency is affected, and the operation difficulty and cost are increased. The service life of the half-ball valve is prolonged, and the maintenance frequency is reduced.

[0027] The utility model discloses a horizontal full-bore bidirectional sealing eccentric half-ball valve.

[0028] Embodiment one

[0029] According to the drawings Figures 1-5 As shown in the drawings, the horizontal full-bore bidirectional sealing eccentric half-ball valve comprises a valve body, an operation unit and a valve seat, the operation unit and the valve seat are located on the inner side of the valve body, the valve body is provided with an upper sealing flange, the upper sealing flange is provided with an upper sealing cover, the upper sealing cover is provided with a limiting groove, the operation unit comprises a valve rod, a valve core, a positioning shaft and a valve seat, the outer side of the valve rod is connected with a limiting block, the limiting block is connected to the inner side of the limiting groove, and the limiting groove is used for limiting the rotation angle of the valve rod; the valve core is sleeved on the outer side of the valve rod; the positioning shaft is inserted into the inner side of the valve core; the valve seat is provided with two groups, and is symmetrically distributed on the two sides of the valve core; the valve seat can be sealingly connected with the valve core, when the sealing effect of one group of valve seats declines, the valve rod drives the valve core to rotate by 180 DEG and switches to sealing connection with the other group of valve seats.

[0030] Two sets of valve seats 3 are provided, and the sealing surface 311 of the sealing seat 31 cooperates with the valve core 22 to realize the bidirectional sealing function of the horizontal full-bore bidirectional sealing eccentric half-ball valve. One set of valve seats 3 works, and the other set of valve seats 3 is standby. When the sealing effect of one set of valve seats 3 decreases, it can be switched to the other set of valve seats 3 in time, effectively preventing medium leakage and improving the sealing performance and reliability of the valve.

[0031] Further, the sealing filler 112 is inserted into the inner side of the upper sealing flange 11.

[0032] Further, the lower sealing flange 12 is arranged at the bottom of the valve body 1, and the lower sealing cover 121 is arranged at the outer side of the lower sealing flange 12.

[0033] In particular, the connecting flange 13 is arranged at both ends of the valve body 1, the limiting ring 131 is arranged at the inner side of the connecting flange 13, the clamping groove 132 is arranged at the outer side of the connecting flange 13, and the screw holes 133 are arranged at the inner side of the clamping groove 132.

[0034] In particular, the valve rod 21 is inserted into the inner side of the sealing filler 112, the handle 211 is connected to the top of the valve rod 21, and the butt gear 213 is connected to the bottom of the valve rod 21.

[0035] Need to be emphasized, the valve core 22 is provided with a sleeve tooth ring 221, the sleeve tooth ring 221 is sleeved on the outer side of the butt gear 213, the valve core 22 is sleeved on the outer side of the positioning shaft 23, and the positioning shaft 23 is inserted into the inner side of the lower sealing flange 12.

[0036] Need to be emphasized, the valve seat 3 is provided with a sealing seat 31 and a clamping seat 32, the sealing seat 31 is clamped with the limiting ring 131, and the sealing surface 311 corresponding to the valve core 22 is arranged at the inner side of the sealing seat 31.

[0037] Example two

[0038] According to the drawings Figures 1-5 As shown, the horizontal full-bore bidirectional sealing eccentric half-ball valve comprises a valve body, an operating unit and a valve seat, the operating unit and the valve seat are located in the inner side of the valve body, the valve body is provided with an upper sealing flange, the upper sealing flange is provided with an upper sealing cover, the upper sealing cover is provided with a limiting groove, the operating unit comprises a valve rod, a valve core, a positioning shaft and a valve seat, the outer side of the valve rod is connected with a limiting block, the limiting block is clamped in the inner side of the limiting groove, and the limiting groove is used to limit the rotation angle of the valve rod; the valve core is sleeved on the outer side of the valve rod; the positioning shaft is inserted into the inner side of the valve core; the valve seat is provided with two sets and is symmetrically distributed on both sides of the valve core, and the valve seat can be sealingly connected with the valve core. When the sealing effect of one set of valve seats decreases, the valve rod drives the valve core to rotate 180° to switch to sealing connection with the other set of valve seats.

[0039] It needs to be emphasized that the card seat 32 is clamped in the card slot 132, the fixing screw 321 is inserted in the card seat 32, the fixing screw 321 is inserted in the screw hole 133, and the abutting ring 322 connected with the sealing seat 31 is connected to the inner side of the card seat 32.

[0040] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model 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 scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A horizontal full bore bi-directional sealing eccentric half-sphere valve comprising a valve body (1), an operating unit (2) and a valve seat (3), said operating unit (2) and valve seat (3) being located inside the valve body (1), characterized in that, The valve body (1) is provided with an upper sealing flange (11), the upper sealing flange (11) is provided with an upper sealing cover (111), the upper sealing cover (111) is provided with a limiting groove (1111), the operating unit (2) comprises: A valve rod (21) is connected with a limiting block (212) outside, the limiting block (212) is clamped in the limiting groove (1111), and the limiting groove (1111) is used for limiting the rotation angle of the valve rod (21); A valve core (22) is sleeved outside the valve rod (21); A positioning shaft (23) is inserted inside the valve core (22); The valve body (1) is provided with two groups of valve seats (3) which are symmetrically distributed on both sides of the valve core (22), and the valve seat (3) can be sealingly connected with the valve core (22); when the sealing effect of one group of valve seats (3) decreases, the valve rod (21) drives the valve core (22) to rotate 180° to switch to sealing connection with another group of valve seats (3).

2. The horizontal full bore bi-directional sealing eccentric half- globe valve according to claim 1, characterized in that The upper sealing flange (11) is inserted with a sealing packing (112) inside.

3. The horizontal full bore bi-directional sealing eccentric half- ball valve according to claim 1, characterized in that, The bottom of the valve body (1) is provided with a lower sealing flange (12), and the lower sealing flange (12) is provided with a lower sealing cover (121) outside.

4. The horizontal full bore bi-directional sealing eccentric half- ball valve according to claim 1, characterized in that, Both ends of the valve body (1) are provided with a connecting flange (13), the connecting flange (13) is provided with a limiting ring (131) inside, the connecting flange (13) is provided with a clamping groove (132) outside, and the clamping groove (132) is provided with a plurality of screw holes (133) which are evenly distributed in a ring shape inside.

5. The horizontal full bore bi-directional sealing eccentric half- ball valve according to claim 2, characterized in that, The valve rod (21) is inserted into the sealing packing (112) inside, the valve rod (21) is connected with a rotating handle (211) at the top, and the valve rod (21) is connected with a butt gear (213) at the bottom.

6. The horizontal full-penetration bi-directional sealing eccentric semi-spherical valve according to claim 3, characterized in that, The valve core (22) is provided with a sleeved tooth ring (221) inside, the sleeved tooth ring (221) is sleeved outside the butt gear (213), the valve core (22) is sleeved outside the positioning shaft (23) at the bottom, and the positioning shaft (23) is inserted into the lower sealing flange (12) inside.

7. The horizontal full bore bi-directional sealing eccentric half- ball valve according to claim 1, characterized in that, The valve seat (3) is provided with a sealing seat (31) and a clamping seat (32), the sealing seat (31) is clamped with the limiting ring (131), and the sealing seat (31) is provided with a sealing surface (311) corresponding to the valve core (22) inside.

8. The horizontal full-penetration bi-directional sealing eccentric semi-spherical valve according to claim 7, characterized in that, The clamping seat (32) is clamped inside the clamping groove (132), the clamping seat (32) is inserted with a fixing screw (321), the fixing screw (321) is inserted into the screw hole (133) inside, and the clamping seat (32) is connected with an abutting ring (322) which abuts against the sealing seat (31) inside.

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