Novel external control sealing ball valve

Abstract

The utility model discloses a novel external control sealing ball valve, and relates to the field of ball valves. The novel external control sealing ball valve comprises a valve body unit and a pollution discharge unit arranged below the valve body unit, the valve body unit comprises a valve body main body and a valve element, the valve element is rotationally arranged in a cavity, the pollution discharge unit comprises a collecting barrel, a supporting rod and a supporting ball, the collecting barrel is in threaded connection with a mounting opening, the supporting rod is fixedly mounted in the collecting barrel, and the supporting ball is arranged in the supporting rod. The supporting ball is rotationally arranged at the top end of the supporting rod. According to the novel external control sealing ball valve, the collecting barrel is used for depositing solid impurities and collecting the impurities in the valve, so that the impurities are prevented from being accumulated in the valve and affecting normal operation of the valve. And meanwhile, a supporting ball is utilized, is rotationally arranged at the top end of the supporting rod and abuts against the bottom of the valve element. The supporting ball can freely rotate at the top end of the supporting rod, smoothness of rotation of the valve element is guaranteed, and resistance during rotation of the valve element is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball valve technical field, concretely is novel outer control sealing ball valve. BACKGROUND

[0002] In the field of industrial fluid control, ball valves are widely used in petroleum, chemical industry, power, metallurgy and other industries as a common type of valve. However, there are some problems in the practical application of traditional ball valves that need to be solved urgently.

[0003] On the one hand, in the long-term use process of traditional ball valves, solid impurities in the fluid are easy to deposit in the internal cavity of the valve, especially in the cavity region between the valve core and the valve body. The accumulation of these impurities not only affects the rotation flexibility of the valve core, causing the valve to open and close smoothly, increasing the operating torque, and in severe cases, causing the valve core to be stuck, so that the valve cannot work normally, thereby affecting the stability and safety of the entire fluid conveying system.

[0004] On the other hand, the design of the blowdown structure of the traditional ball valve is not perfect. Although some ball valves have certain blowdown function, such as setting a blowdown port below the valve core, if the blowdown port is too small, the blowdown effect is limited, and if the blowdown port is larger, the bottom of the valve core lacks support, and in the case of long-term rotation and wear of the valve core, the valve core may be displaced and a gap may occur between the valve core and the valve body. Therefore, the present application proposes a novel outer control sealing ball valve. SUMMARY

[0005] In view of the deficiencies of the prior art, the utility model provides a novel outer control sealing ball valve, which solves the problem that although some ball valves have certain blowdown function, such as setting a blowdown port below the valve core, if the blowdown port is too small, the blowdown effect is limited, and if the blowdown port is larger, the bottom of the valve core lacks support, and in the case of long-term rotation and wear of the valve core, the valve core may be displaced and a gap may occur between the valve core and the valve body.

[0006] To achieve the above purpose, the utility model realizes through the following technical scheme: a novel outer control sealing ball valve, comprising a valve body unit and a blowdown unit arranged below the valve body unit, the valve body unit comprising:

[0007] a valve body, a cavity is formed in the inside of the valve body, and a blowdown port is formed in the inner bottom wall of the cavity, and an installation port is formed in the bottom of the valve body and is in communication with the blowdown port;

[0008] a valve core rotatably arranged in the cavity;

[0009] The blowdown unit comprises:

[0010] a collection cylinder threadedly connected in the installation port, the collection cylinder is used for depositing solid impurities;

[0011] a support rod fixedly installed inside the collecting cylinder and having a top end extending into the cavity through the blowdown opening;

[0012] a support ball rotatably arranged at the top end of the support rod and abutting against the bottom of the valve core.

[0013] Preferably, a valve rod is rotatably arranged at the top of the valve body and has a bottom end connected with the valve core.

[0014] Preferably, the top end of the valve rod extends outward and is fixedly installed with a handle.

[0015] Preferably, the bottom of the valve core is provided with a contact groove and the support ball abuts against the inner wall of the contact groove.

[0016] Preferably, the inside of the valve body is installed with a valve seat and the outer side of the valve core abuts against the valve seat.

[0017] Preferably, the top of the collecting cylinder is installed with a sealing ring and the top end of the collecting cylinder abuts against the inner top wall of the installation opening through the sealing ring.

[0018] Preferably, the bottom of the support ball is fixedly installed with a rotating shaft and the rotating shaft is rotatably arranged inside the top end of the support rod.

[0019] Preferably, the bottom of the collecting cylinder is fixedly connected with a rotating block.

[0020] The utility model discloses a novel external control sealing ball valve, which has the following beneficial effects: the novel external control sealing ball valve is provided with a blowdown unit, the collecting cylinder is screwedly connected in the installation opening of the valve body, and the collecting cylinder is convenient to install and disassemble. The collecting cylinder is used for depositing solid impurities, collecting the impurities in the valve, preventing the impurities from accumulating in the valve and affecting the normal operation of the valve. Meanwhile, the support ball is rotatably arranged at the top end of the support rod and abuts against the bottom of the valve core. The support ball can freely rotate at the top end of the support rod, guarantees the smoothness of the rotation of the valve core and reduces the resistance when the valve core rotates. BRIEF DESCRIPTION OF DRAWINGS

[0021] 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 be obtained according to these drawings without paying creative labor.

[0022] Figure 1 It is the whole structure schematic diagram of the utility model;

[0023] Figure 2 A sectional view of the structure of the utility model;

[0024] Figure 3 A partial enlarged view of the utility model Figure 2

[0025] Figure 4 A partial sectional view of the utility model;

[0026] Figure 5 A structural schematic view of the pollution discharge unit of the utility model.

[0027] In the figure: 1, valve body unit; 11, valve body main body; 111, pollution discharge port; 112, mounting port; 12, valve core; 121, contact groove; 13, valve rod; 14, valve seat; 15, handle; 2, pollution discharge unit; 21, collection cylinder; 22, support rod; 23, support ball; 24, sealing ring; 25, rotating shaft; 26, rotating block. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application is described clearly and completely, obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0029] The embodiments of the present application provide a novel external control sealing ball valve, solve the problem that although some ball valves have certain pollution discharge function, such as setting a pollution discharge port below the valve core, if the pollution discharge port is too small, the pollution discharge effect is limited, and if the pollution discharge port is large, the bottom of the valve core lacks support, and under the condition of long-term rotation and wear of the valve core, the valve core may be displaced and a gap between the valve core and the valve body may occur.

[0030] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings of the specification and specific embodiments.

[0031] The embodiments of the present application disclose a novel external control sealing ball valve.

[0032] According to the drawings Figures 1-5 As shown, the novel external control sealing ball valve comprises a valve body unit 1 and a pollution discharge unit 2 arranged below the valve body unit 1, and the valve body unit 1 comprises:

[0033] A valve body main body 11, a cavity is formed in the inside of the valve body main body 11, and a pollution discharge port 111 is formed in the inner bottom wall of the cavity, and a mounting port 112 in communication with the pollution discharge port 111 is formed in the bottom of the valve body main body 11;

[0034] ​A cavity is formed in the valve body 11 to provide space for the installation and rotation of the valve core 12. A drain port 111 is formed in the bottom wall of the cavity, and a mounting port 112 is formed in the bottom and communicates with the drain port 111. This design allows impurities inside the valve to be easily discharged, and provides an interface for the installation of the drain unit 2.

[0035] The valve core 12 is rotatably arranged in the cavity.

[0036] The drain unit 2 includes:

[0037] The collection cylinder 21 is threadedly connected in the mounting port 112, and the collection cylinder 21 is used to deposit solid impurities.

[0038] The support rod 22 is fixedly installed inside the collection cylinder 21, and the top end of the support rod 22 extends into the cavity through the drain port 111.

[0039] The support ball 23 is rotatably arranged at the top end of the support rod 22, and the support ball 23 abuts against the bottom of the valve core 12.

[0040] By providing the drain unit 2, the collection cylinder 21 is threadedly connected in the mounting port 112 of the valve body 11, which facilitates installation and disassembly. The collection cylinder 21 is used to deposit solid impurities, which collects impurities inside the valve to prevent impurities from accumulating inside the valve and affecting the normal operation of the valve. At the same time, the support ball 23 is rotatably arranged at the top end of the support rod 22, and abuts against the bottom of the valve core 12. The support ball 23 can freely rotate at the top end of the support rod 22, ensuring the smoothness of the rotation of the valve core 12 and reducing the resistance when the valve core 12 rotates.

[0041] Further, the valve stem 13 is rotatably arranged at the top of the valve body 11, and the bottom end of the valve stem 13 is connected to the valve core 12.

[0042] Further, the top end of the valve stem 13 extends outward and is fixedly installed with the handle 15.

[0043] The valve stem 13 is rotatably arranged at the top of the valve body 11, and the bottom end of the valve stem 13 is connected to the valve core 12. By rotating the valve stem 13, the valve core 12 can be driven to rotate, thereby realizing the control of the valve. The top end of the valve stem 13 extends outward and is fixedly installed with the handle 15, which facilitates manual operation of the valve by the operator and improves the convenience of use.

[0044] Further, the bottom of the valve core 12 is provided with a contact groove 121, and the support ball 23 abuts against the inner wall of the contact groove 121.

[0045] The valve core 12 is rotationally arranged in the cavity of the valve body main body 11, and the opening and closing of the valve are controlled by rotation. When the valve core 12 is rotated to different positions, the on-off state of the fluid passage can be changed to realize the control of the fluid. The top of the valve core 12 abuts against the supporting ball 23, and the bottom is provided with a contact groove 121, and the supporting ball 23 abuts against the inner wall of the contact groove 121. This cooperation mode enables the supporting ball 23 to support the valve core 12 to a certain extent, while ensuring the flexibility of the rotation of the valve core 12, reducing the friction between the valve core 12 and the valve body main body 11, and prolonging the service life of the valve.

[0046] Further, the valve body main body 11 is internally provided with a valve seat 14, and the outer side of the valve core 12 abuts against the valve seat 14.

[0047] Further, the top of the collecting cylinder 21 is provided with a sealing ring 24, and the top end of the collecting cylinder 21 abuts against the inner top wall of the mounting port 112 through the sealing ring 24.

[0048] Further, the bottom of the supporting ball 23 is fixedly provided with a rotating shaft 25, and the rotating shaft 25 is rotationally arranged in the inside of the top end of the supporting rod 22.

[0049] Further, the bottom of the collecting cylinder 21 is fixedly connected with a rotating block 26.

[0050] The collecting cylinder 21 is provided with a sealing ring 24 at the top, and the top end abuts against the inner top wall of the mounting port 112 through the sealing ring 24, so as to ensure the sealing property between the collecting cylinder 21 and the valve body main body 11, and prevent fluid leakage. The bottom of the collecting cylinder 21 is fixedly connected with a rotating block 26, so as to facilitate the operator to install and dismount the collecting cylinder 21 by rotating the rotating block 26.

[0051] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by those skilled in the art 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 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 protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A new type of externally piloted sealing ball valve, comprising a valve body unit (1) and a blowdown unit (2) arranged below the valve body unit (1), characterized in that, The valve body unit (1) comprises: a valve body (11), an inner bottom wall of a cavity in the valve body (11) is provided with a blowdown port (111), and a bottom of the valve body (11) is provided with a mounting port (112) in communication with the blowdown port (111); a valve core (12) rotatably arranged in the cavity; the blowdown unit (2) comprises: a collecting cylinder (21) threadedly connected in the mounting port (112), the collecting cylinder (21) is used for depositing solid impurities; a support rod (22) fixedly installed in the inside of the collecting cylinder (21), and a top end of the support rod (22) extends into the cavity through the blowdown port (111); a support ball (23) rotatably arranged at the top end of the support rod (22), and the support ball (23) abuts against the bottom of the valve core (12).

2. The new type of externally piloted sealing ball valve according to claim 1, characterized in that a valve rod (13) rotatably arranged at the top of the valve body (11), and a bottom end of the valve rod (13) is connected with the valve core (12).

3. The new type of externally piloted sealing ball valve according to claim 2, characterized in that a handle (15) fixedly installed at a top end of the valve rod (13) and extending outward.

4. The new type of externally piloted sealing ball valve according to claim 1, characterized in that a contact groove (121) is formed at the bottom of the valve core (12), and the support ball (23) abuts against an inner wall of the contact groove (121).

5. The new type of externally piloted sealing ball valve according to claim 1, characterized in that a valve seat (14) is installed in the inside of the valve body (11), and an outer side of the valve core (12) abuts against the valve seat (14).

6. The new type of externally piloted sealing ball valve according to claim 1, characterized in that a sealing ring (24) is installed at the top of the collecting cylinder (21), and a top end of the collecting cylinder (21) abuts against an inner top wall of the mounting port (112) through the sealing ring (24).

7. The new type of externally piloted sealing ball valve according to claim 1, characterized in that a rotating shaft (25) is fixedly installed at the bottom of the support ball (23), and the rotating shaft (25) is rotatably arranged in the inside of the top end of the support rod (22).

8. The new type of externally piloted sealing ball valve according to claim 1, characterized in that a rotating block (26) is fixedly connected to the bottom of the collecting cylinder (21).

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