Ball valve body convenient to connect with valve cover

Abstract

The utility model discloses a ball valve body convenient to connect with a valve cover, and relates to the technical field of ball valves. The ball valve comprises a ball valve body, and the ball valve body comprises a right valve body, a left valve body arranged on one side of the right valve body, a valve seat located on the inner wall of the right valve body and the inner wall of the left valve body, a rotating sleeve located in the valve seat and a ball valve element installed in the rotating sleeve and the right valve body. A valve cover body structure, comprising a mounting groove formed in the upper end of a right valve body, a sealing ring and filler located on the inner wall of a mounting sleeve, a valve rod rotationally inserted into the sealing ring and the filler, a lantern ring located at the upper end of the right valve body, a valve cover body connected to the outer side of the lantern ring and the outer side of the valve rod in a sleeving mode, positioning holes formed in the valve cover body and the lantern ring, and a positioning rod inserted into the positioning holes. And the spring sleeves the outer side of the positioning rod. Through the arrangement of the valve cover body structure, the problems that the valve cover body and the ball valve body are fixed through welding, the welding process is increased, the assembling process is time-consuming, and assembling is inconvenient are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a ball valve body facilitating the connection of a valve cover. Background Technique

[0002] A ball valve is a kind of valve, and its main component is a sphere with an adjustable aperture. In a ball valve, when the valve is closed, the sphere is in close contact with the valve seat to prevent the fluid from passing through; when the valve is opened, the sphere rotates to allow the fluid to pass through. This type of valve is usually used in applications that require quick opening and closing and strict control of the fluid. During the processing and assembly of a ball valve, the valve cover body is usually connected to the ball valve body by threaded connection, welding connection or flange connection.

[0003] Chinese Patent discloses a fully welded ball valve cover body (authorization publication number CN113236811B). This patented technology includes a valve cover body and a wedge-shaped sphere. The valve cover body is detachably installed at both ends of the ball valve, and the wedge-shaped sphere is rotatably connected to the inside of the ball valve through a valve stem at its top. In the present invention, a set of sealing rubber rings that can expand when the wedge-shaped sphere touches the sealing ring is added to the sealing rings provided in the wedge-shaped sphere and the valve cover body. By using these sealing rubber rings, the fit between the wedge-shaped sphere and the sealing ring is higher. While implementing traditional sealing means, the wedge-shaped sphere and the sealing ring are further sealed through the sealing rubber rings, improving the overall sealing strength when the ball valve needs to stop the fluid from flowing.

[0004] This patented technology improves the sealing performance of the ball valve during use, but there are still deficiencies during use. Although the connection between the valve cover body and the ball valve body by welding is firm, during the assembly process, the welding process is added, resulting in a very time-consuming assembly process and inconvenient assembly. Therefore, those skilled in the art provide a ball valve body facilitating the connection of the valve cover to solve the problems raised in the above background technique. Content of the Utility Model

[0005] 1. Technical Solution

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model provides a ball valve body facilitating the connection of a valve cover, including a ball valve body,

[0008] The ball valve body includes a right valve body, a left valve body located on one side of the right valve body, a valve seat located on the inner walls of the right valve body and the left valve body, a rotating sleeve located inside the valve seat, and a ball valve spool rotatably installed inside the rotating sleeve and the right valve body;

[0009] And;

[0010] The valve cover body structure includes a mounting groove opened inside the upper end of the right valve body, a sealing ring and packing located on the inner wall of the mounting sleeve, a valve stem rotatably inserted inside the sealing ring and the packing, a collar located at the upper end of the right valve body, a valve cover body sleeved on the outside of the collar and the valve stem, a positioning hole opened inside the valve cover body and the collar, a positioning rod inserted into the positioning hole, and a spring sleeved on the outside of the positioning rod.

[0011] Furthermore, a butt joint is provided at the connection between the right valve body and the left valve body, and flange 2 is sleeved on the outer wall of the joint between the right valve body and the left valve body;

[0012] Specifically, the right valve body and the left valve body are butted against each other through the butt joint surfaces and are installed after butt joint through the second flange.

[0013] Furthermore, the ends of the right valve body and the left valve body facing away are both provided with flange 1, and the ends of the flange 1 facing away are both provided with sealing gasket grooves;

[0014] Specifically, flange one is butt-jointed with the pipeline, and the sealing ring is installed through the sealing gasket groove.

[0015] Furthermore, a handle is provided at the upper end of the valve stem, and a pull plate is provided at one end of the positioning rod;

[0016] Specifically, grasping the handle facilitates applying force to the valve stem, and grasping the pull plate facilitates applying force to the positioning plate.

[0017] Furthermore, the upper end of the right valve body is provided with symmetrically distributed support rings located on both sides of the sleeve ring, one end of the valve stem is slidably inserted into the support ring, the outer wall of the valve stem is sleeved with a limit ring, and the two ends of the spring are respectively connected to the limit ring and the support ring;

[0018] Specifically, the support ring supports the spring, and the elastic force of the spring acts on the positioning rod through the limiting ring.

[0019] Furthermore, a docking seat is provided at the upper end of the ball valve core, and a docking joint is provided at the lower end of the valve stem, and the docking joint and the docking seat are interlocked;

[0020] Specifically, after the butt joint and the butt seat are engaged with each other, the rotational force of the valve stem effectively acts on the valve core of the ball valve.

[0021] 2. Beneficial effects

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] In this utility model, the valve cover body is sleeved outside the collar. By means of extrusion, the valve cover body extrudes the packing. Matching positioning holes are provided inside both sides of the collar and the valve cover body. After docking, they are inserted by the horizontally distributed positioning rods. The positioning rods are stabilized by the elastic support of the springs, and the valve cover body is fixed.

[0024] At the same time, it avoids the problem of loose screw threading, the time-consuming welding process, and the need to install multiple bolts and nuts for flange connection. Compared with traditional screw connection, welding, or flange connection, this structure simplifies the installation process, reduces the required tools and operation steps, thereby saving installation time and labor costs.

[0025] Of course, it is not necessary for any product implementing this utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of this utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following-described drawings are only some embodiments of this utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is the front view three-dimensional structure schematic diagram of this utility model;

[0028] Figure 2 It is the side view three-dimensional structure schematic diagram of this utility model;

[0029] Figure 3 It is the front sectional three-dimensional structure schematic diagram of this utility model;

[0030] Figure 4 It is the main sectional three-dimensional structure schematic diagram of the valve cover body structure of this utility model.

[0031] In the drawings, the list of components represented by each reference numeral is as follows:

[0032] 100, ball valve body; 101, right valve body; 102, left valve body; 103, flange one; 104, flange two; 105, sealing gasket groove; 106, valve seat; 107, valve docking groove; 108, rotating sleeve; 109, ball valve spool;

[0033] 200, valve cover structure; 201, handle; 202, pull plate; 203, collar; 204, support ring; 205, spring; 206, valve cover body; 207, valve rod; 208, positioning hole; 209, limit ring; 210, positioning rod; 211, installation groove; 212, packing; 213, sealing ring; 214, docking head; 215, docking seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] In order to make the above-mentioned objects, features and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings.

[0035] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0036] Secondly, the present utility model will be described in detail with reference to the schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of description, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0037] In order to make the purpose, technical solution and advantages of the present utility model clearer, the following will further describe in detail the embodiments of the present utility model with reference to the accompanying drawings.

[0038] Embodiment 1

[0039] Please refer to Figures 1 - 4 As shown, this embodiment is a ball valve body facilitating the connection of a valve cover, including a ball valve body 100.

[0040] The ball valve body 100 includes a right valve body 101, a left valve body 102 located on one side of the right valve body 101, a valve seat 106 located on the inner walls of the right valve body 101 and the left valve body 102, a rotating sleeve 108 located inside the valve seat 106, and a ball valve core 109 rotatably installed inside the rotating sleeve 108 and the right valve body 101.

[0041] A valve docking groove 107 is provided at the connection between the right valve body 101 and the left valve body 102, and flange twos 104 are sleeved on the outer walls of the joints between the right valve body 101 and the left valve body 102.

[0042] Flange ones 103 are provided at the opposite ends of the right valve body 101 and the left valve body 102, and sealing gasket grooves 105 are opened inside the opposite ends of the flange ones 103.

[0043] A docking seat 215 is provided at the upper end of the ball valve core 109, a docking head 214 is provided at the lower end of the valve rod 207, and the docking head 214 and the docking seat 215 are mutually fitted.

[0044] Use the ball valve body 100.

[0045] Ensure that the valve cover body 206, the ball valve body 100 and other components are in a clean state, and check whether accessories such as the sealing ring 213 or the packing 212 are intact. The sealing ring 213 is installed inside the installation groove 211. The ball valve spool 109 is installed inside the right valve body 101. The left valve body 102 is docked with the right valve body 101 through the valve docking groove 107. The bolt is rotationally inserted into the flange two 104 to fix the left valve body 102 and the right valve body 101 together. The ball valve spool 109 is rotatably installed inside the rotating sleeve 108. The valve stem 207 is inserted into the sealing ring 213. The docking head 214 and the docking seat 215 are mutually engaged. The rotational force of the valve stem 207 effectively acts on the ball valve spool 109. The packing 212 is installed inside the collar 203. The valve cover body 206 is sleeved on the outer wall of the collar 203. When the grip handle 201 drives the valve stem 207 to rotate, the ball valve spool 109 is rotated to realize the opening and closing control of the ball valve for the ball valve body 100.

[0046] Embodiment 2

[0047] Please refer to Figures 1 - 4 as shown. This embodiment further includes on the basis of Embodiment 1;

[0048] and;

[0049] The valve cover structure 200 includes an installation groove 211 opened inside the upper end of the right valve body 101, a sealing ring 213 and a packing 212 located on the inner wall of the installation groove 211, a valve stem 207 rotationally inserted into the sealing ring 213 and the packing 212, a collar 203 located at the upper end of the right valve body 101, a valve cover body 206 sleeved on the outer sides of the collar 203 and the valve stem 207, a positioning hole 208 opened inside the valve cover body 206 and the collar 203, a positioning rod 210 inserted into the positioning hole 208, and a spring 205 sleeved on the outer side of the positioning rod 210. A handle 201 is provided at the upper end of the valve stem 207, and a pull plate 202 is provided at one end of the positioning rod 210;

[0050] Symmetrically distributed support rings 204 are provided at the upper end of the right valve body 101 and on both sides of the collar 203. One end of the valve stem 207 is slidably inserted into the support ring 204. A limit ring 209 is sleeved on the outer wall of the valve stem 207. Both ends of the spring 205 are connected to the limit ring 209 and the support ring 204 respectively;

[0051] Use the valve cover structure 200;

[0052] After the valve cover body 206 is sleeved on the outer wall of the collar 203, during the process of pressing the packing 212, the fixed tooling can be used to clamp the ball valve body 100, and the hydraulic mechanism presses the upper end of the valve cover body 206, so that the positioning holes 208 inside the valve cover body 206 and the collar 203 are convenient for docking. During this process, grasp the pull plate 202 and apply a force away from each other to the positioning rod 210. The positioning rod 210 presses the spring 205 through the limiting ring 209, and the spring 205 contracts under force. After the positioning holes 208 are docked, loosen the pull plate 202, and through the elasticity of the spring 205 itself, push the positioning rod 210 to be inserted into the positioning holes 208 to realize the plug-in fixation of the fastened valve cover body 206 and the collar 203, achieving the rapid installation of the valve cover body 206. Moreover, the spring 205 supports the positioning rod 210 and applies a lateral limit to the valve cover body 206, making the valve cover body 206 stable. In the traditional assembly method, for example, flange connection requires installing multiple bolts and nuts, increasing the installation difficulty and time cost. The valve cover body 206 is not firmly fixed by screwing, there are welding quality problems and it takes a lot of man-hours. This kind of fixing structure of the valve cover body 206 simplifies the operation process of the installer and is convenient for installation.

[0053] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0054] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A ball valve body that is convenient for connecting a valve cover, characterized in that: It comprises a ball valve body (100), The ball valve body (100) comprises a right valve body (101), a left valve body (102) located at one side of the right valve body (101), a valve seat (106) located at the inner walls of the right valve body (101) and the left valve body (102), a rotating sleeve (108) located inside the valve seat (106), and a ball valve core (109) rotatably mounted on the rotating sleeve (108) and inside the right valve body (101); as well as; The valve cover structure (200) comprises a mounting groove (211) provided inside the upper end of the right valve body (101), a sealing ring (213) and a packing (212) located on the inner wall of the mounting groove (211), a valve stem (207) rotatably inserted inside the sealing ring (213) and the packing (212), a collar (203) located at the upper end of the right valve body (101), a valve cover body (206) sleeved on the outside of the collar (203) and the valve stem (207), a positioning hole (208) provided inside the valve cover body (206) and the collar (203), a positioning rod (210) inserted inside the positioning hole (208), and a spring (205) sleeved on the outside of the positioning rod (210).

2. A ball valve body that is convenient for connecting to a valve cover according to claim 1, characterized in that: A valve docking groove (107) is provided at the connection between the right valve body (101) and the left valve body (102), and a flange 2 (104) is sleeved on the outer wall of the joint between the right valve body (101) and the left valve body (102).

3. A ball valve body that is convenient for connecting to a valve cover according to claim 1, characterized in that: The ends of the right valve body (101) and the left valve body (102) facing away from each other are both provided with flange one (103), and the ends of the flange one (103) facing away from each other are both provided with sealing gasket grooves (105).

4. A ball valve body that is convenient for connecting to a valve cover according to claim 1, characterized in that: A handle (201) is provided at the upper end of the valve stem (207), and a pull plate (202) is provided at one end of the positioning rod (210).

5. A ball valve body that is convenient for connecting to a valve cover according to claim 1, characterized in that: The upper end of the right valve body (101) is provided with support rings (204) which are symmetrically distributed and located on both sides of the ring (203); one end of the valve stem (207) is slidably inserted into the support ring (204); the outer wall of the valve stem (207) is sleeved with a limit ring (209); and the two ends of the spring (205) are respectively connected to the limit ring (209) and the support ring (204).

6. A ball valve body convenient for connecting to a valve cover according to claim 1, characterized in that: The upper end of the ball valve core (109) is provided with a docking seat (215), and the lower end of the valve stem (207) is provided with a docking joint (214), and the docking joint (214) and the docking seat (215) are interlocked.

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