An easy-to-install hemispherical valve

Abstract

This utility model discloses an easy-to-install hemispherical valve, including a valve body, a flow channel, a hemisphere, and a driving component. The driving component includes a driving rod, a rotating block, and a driving block, with the rotating block and driving rod located at opposite ends of the hemisphere. One end of the driving rod has a bent driving section, and the connecting end of the hemisphere has multiple snap-fit ​​protrusions. The driving block has a driving groove inside and a snap-fit ​​gap on the outside; when the snap-fit ​​protrusions snap into the snap-fit ​​gap, the hemisphere is fixed to the driving block, and the bent driving section is located within the driving groove. The rotating block has a rotating rod that engages with a limiting groove on the hemisphere via a limiting block. The valve body has a fixed edge forming a fixed groove, and the outer circumference of the rotating block has an arc-shaped locking groove. The fixed edge has a limiting protrusion that slides into the locking groove during rotation. One end of the fixed groove has an opening and a locking plate. The locking edges at both ends of the locking plate engage with the snap-fit ​​groove on the rotating block, and the locking block on the locking plate engages with the limiting groove on the rotating block. This utility model allows for quick assembly and disassembly and is easy to maintain.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and more specifically, to a hemispherical valve. Background Technology

[0002] As a high-capacity, low-voltage power distribution protection device, the hemispherical valve is widely used in the main incoming line, bus tie, and high-load circuits of power systems. Its structure typically includes a circuit breaker body and a connecting frame for mounting the body. The circuit breaker body is installed in the distribution cabinet via the connecting frame.

[0003] Currently, the fixing method between the hemispherical valve body and its connecting frame is mostly to directly fasten it with screws or bolts. That is, after the circuit breaker body is placed in the connecting frame, the operator needs to use a screwdriver or other tools to tighten multiple fixing screws located on both sides or the bottom of the connecting frame one by one to reliably install the circuit breaker body in the connecting frame. This connection method has the following disadvantages: First, the installation and disassembly processes both require the use of special tools, which cannot be operated when tools are unavailable or the on-site tools are incomplete, causing inconvenience for installation and maintenance; second, multiple screws need to be tightened or loosened one by one, which is cumbersome and time-consuming, especially in scenarios where frequent maintenance or replacement of circuit breakers is required, resulting in low efficiency; third, after long-term use, the screws are prone to rust, stripping, or loosening, resulting in the circuit breaker not being securely fixed and affecting the reliability of the electrical connection; in addition, if the operator applies uneven force, it may also cause deformation or damage to the circuit breaker housing.

[0004] To address the aforementioned issues, some existing technologies employ snap-fit ​​connection structures, but these often suffer from problems such as unstable snap-fit ​​force, difficulty in disassembly, and lack of anti-detachment design, making it difficult to meet the dual requirements of ball valves for connection reliability and convenience. Utility Model Content

[0005] This utility model provides a hemispherical valve that is easy to install, quick to assemble and disassemble, has a compact structure, and is easy to maintain.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A hemispherical valve that is easy to install, comprising a valve body, a flow channel formed within the valve body, a hemisphere disposed within the flow channel, and a driving component connected to the hemisphere disposed on the valve body. The driving component drives the hemisphere to cut off the flow channel. The driving component comprises a driving rod, a rotating block, and a driving block, the rotating block and the driving rod being respectively disposed at both ends of the hemisphere. The driving rod has a bent driving section at one end of the valve body. One end of the hemisphere is a connecting end, and a plurality of evenly distributed snap-fit ​​protrusions are formed on the connecting end. A driving groove is formed within the driving block, and a snap-fit ​​gap is formed on the outer side of the driving block. When the snap-fit ​​protrusions snap into the snap-fit ​​gap, the hemisphere is fixed to the driving block, and the bent driving section is located within the driving groove.

[0007] This invention offers the following advantages: The hemisphere and drive rod are quickly engaged via a snap-fit ​​protrusion at the hemispherical connector end and a snap-fit ​​gap on the outer side of the drive block, achieving a tool-free connection; the bent drive section is located within the drive groove, ensuring stable power transmission. This structure requires no bolts or keys; during installation, the hemisphere is simply pushed in to lock, and during disassembly, it is directly pulled out, significantly simplifying hemisphere replacement and reducing maintenance downtime.

[0008] The present invention is further configured such that: a rotating groove is formed on the rotating block, a rotating rod is disposed in the rotating groove, the rotating rod is rotatably disposed in the rotating block, a connecting surface is formed on the rotating rod, a limiting block is disposed on the connecting surface, and a limiting groove that cooperates with the limiting block is recessed on the hemisphere.

[0009] This invention offers the following advantages: the rotating rod engages with the limiting groove on the hemisphere via a limiting block, enabling synchronous rotation of the hemisphere and the rotating block while allowing axial relative sliding. This structure facilitates alignment during assembly, and the hemisphere can be directly removed during disassembly without disassembling the rotating block, further enhancing maintenance convenience.

[0010] The present invention is further configured such that: the other end of the rotating rod is formed with a rotating end, the rotating end is provided with an arc surface, and the rotating end is rotatably disposed in the rotating groove.

[0011] The present invention has the following effects: the arc end of the rotating rod forms a point-to-line contact with the rotating groove, which reduces rotational friction, makes the opening and closing operation easier, and at the same time reduces the wear of the rotating rod and the rotating block, extending the service life.

[0012] The present invention is further configured such that: a limit bolt is provided in the drive groove, and the bending drive section is located between adjacent limit bolts in the drive groove.

[0013] The present invention has the following advantages: the limiting bolt and the bending drive section form an axial limit, preventing the drive rod from slipping out of the drive groove under vibration or pressure fluctuation. At the same time, the limiting bolt is detachable, which facilitates the installation and removal of the drive rod, thus taking into account both the reliability of the connection and the convenience of disassembly.

[0014] The present invention is further configured such that: guide slopes are formed at both ends of the drive block located in the snap-fit ​​gap, and the guide slopes are used to guide the snap-fit ​​protrusion to snap into the snap-fit ​​gap.

[0015] The present invention has the following effects: the guiding slope enables the snap-fit ​​protrusion to automatically center during insertion, allowing for smooth insertion without precise alignment, thus reducing assembly difficulty; at the same time, the slope structure provides progressive clamping force, making the connection tighter.

[0016] The present invention is further configured such that: a fixed side is provided in the valve body, the fixed side forms a fixed groove, an arc-shaped locking groove is opened on the outer periphery of the rotating block, and a limiting protrusion is provided on the fixed side. When the rotating block rotates, the limiting protrusion enters the locking groove and slides in the locking groove.

[0017] The present invention has the following effects: when the rotating block rotates, the limiting protrusion on the fixed side slides along the arc-shaped locking groove to form circumferential limiting and guiding, preventing the rotating block from rotating excessively or deviating; at the same time, the structure allows the rotating block to float axially within a certain range, which facilitates the adjustment of the hemispherical position during assembly and reduces the installation accuracy requirements.

[0018] The present invention is further configured such that: one end of the fixing groove is provided with an opening, the hemispherical valve further includes a locking piece for closing the opening, the two ends of the locking piece are formed with locking edges, the rotating block is provided with a snap-fit ​​groove that cooperates with the locking edges, the locking piece is also provided with a locking block, and the rotating block is also provided with a limiting groove that cooperates with the locking block.

[0019] This invention has the following advantages: the locking piece engages with the locking groove on the rotating block via its locking edge, sealing the opening of the fixing groove and preventing the rotating block from coming out of the opening during use; simultaneously, the locking piece engages with the limiting groove to achieve double anti-disengagement locking. During disassembly, the rotating block can be removed from the opening simply by prying open the locking piece, without disassembling the valve body, greatly facilitating the maintenance and replacement of the rotating block and hemisphere. Attached Figure Description

[0020] Figure 1 This is a perspective view of an embodiment of the present utility model; Figure 2 This is a structural diagram of the hemisphere in an embodiment of the present invention; Figure 3 This is a structural diagram of the fixed side in an embodiment of the present utility model; Figure 4 This is an exploded view of the fixed side structure of an embodiment of this utility model.

[0021] In the diagram: 1. Valve body; 2. Drive rod; 21. Bending drive section; 3. Drive block; 31. Snap-fit ​​protrusion; 41. Rotating groove; 42. Rotating rod; 43. Limiting block; 44. Rotating end; 45. Arc surface; 5. Limiting bolt; 6. Fixed edge; 61. Fixed groove; 63. Locking groove; 7. Limiting protrusion; 71. Locking piece; 72. Limiting groove. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] Reference Figures 1 to 4 The embodiments of this utility model will be further described below.

[0025] A hemispherical valve for easy installation includes a valve body 1, within which a flow channel is formed, and a hemisphere is disposed within the flow channel. A driving component connected to the hemisphere is disposed on the valve body 1, and the driving component drives the hemisphere to cut off the flow channel. The driving component includes a driving rod 2, a rotating block, and a driving block 3, with the rotating block and driving rod 2 respectively disposed at opposite ends of the hemisphere. A bent driving section 21 is formed at one end of the driving rod 2 located in the valve body 1. One end of the hemisphere is a connecting end, on which multiple evenly distributed snap-fit ​​protrusions 31 are formed. A driving groove is formed within the driving block 3, and a snap-fit ​​gap is formed on the outer side of the driving block 3. When the snap-fit ​​protrusions 31 snap into the snap-fit ​​gap, the hemisphere is fixed to the driving block 3, and the bent driving section 21 is located within the driving groove. Limiting bolts 5 are disposed within the driving groove, and the bent driving section 21 is located between adjacent limiting bolts 5 within the driving groove. The drive block 3 has guide ramps at both ends of the snap-fit ​​gap. The guide ramps are used to guide the snap-fit ​​protrusion 31 into the snap-fit ​​gap. During assembly, simply align the snap-fit ​​protrusion 31 of the hemisphere with the snap-fit ​​gap of the drive block 3 and push it in along the guide ramps to achieve quick locking. During disassembly, simply pull out the hemisphere, and the snap-fit ​​protrusion 31 will disengage from the snap-fit ​​gap without any tools.

[0026] A rotating groove 41 is formed on the rotating block, and a rotating rod 42 is disposed within the rotating groove 41. The rotating rod 42 is rotatably disposed within the rotating block. A connecting surface is formed on the rotating rod 42, and a limiting block 43 is disposed on the connecting surface. A limiting groove (not separately labeled in the figure) is recessed on the hemisphere to cooperate with the limiting block 43. A rotating end 44 is formed at the other end of the rotating rod 42, and an arc surface 45 is provided on the rotating end 44. The rotating end 44 is rotatably disposed within the rotating groove 41. This structure allows the hemisphere to rotate synchronously with the rotating rod 42, while also allowing the hemisphere to be easily pulled out axially.

[0027] A fixed edge 6 is provided inside the valve body 1. The fixed edge 6 is C-shaped and forms a fixed groove 61. An arc-shaped locking groove 63 is formed on the outer periphery of the rotating block. A limit protrusion 7 is provided on the fixed edge 6. When the rotating block rotates, the limit protrusion 7 enters the locking groove 63 and slides within the locking groove 63. One end of the fixed groove 61 has an opening. The hemispherical valve also includes a locking piece 71 for closing the opening. Locking edges are formed at both ends of the locking piece 71, and a snap-fit ​​groove (not shown in the figure) is formed on the rotating block to cooperate with the locking edges. A locking block is also formed on the locking piece 71, and a limit groove 72 is formed on the rotating block to cooperate with the locking block. The opening of the fixed groove 61 facilitates the insertion and removal of the rotating block. After the locking piece 71 closes the opening, the locking edges cooperate with the snap-fit ​​groove, and the locking block cooperates with the limit groove 72 to achieve double anti-disengagement.

[0028] The working process of this embodiment is as follows: During installation, first, the rotating block is installed into the fixing groove 61 of the valve body 1, aligning the locking groove 63 on the outer periphery of the rotating block with the limiting protrusion 7 on the fixing edge 6. Then, the rotating rod 42 is pushed in so that its rotating end 44 enters the rotating groove 41. Next, one end of the hemisphere is aligned with the limiting block 43 of the rotating rod 42, and the snap-fit ​​protrusion 31 at the other end is aligned with the snap-fit ​​gap of the drive block 3 and pushed in, so that the hemisphere locks with the drive block 3. Finally, the locking piece 71 is installed into the opening of the fixing groove 61, the locking edge snaps into the snap-fit ​​groove on the rotating block, and the locking piece snaps into the limiting groove 72, completing the assembly. When disassembly and maintenance are required, first pry open the locking piece 71, pull out the rotating block from the opening, and then pull out the hemisphere. The entire process does not require disassembling the valve body or using special tools, achieving quick assembly and disassembly.

Claims

1. A hemispherical valve for easy installation, comprising a valve body, wherein a flow channel is formed within the valve body, a hemisphere is disposed within the flow channel, and a driving member connected to the hemisphere is disposed on the valve body, the driving member driving the hemisphere to cut off the flow channel, characterized in that: The driving component includes a driving rod, a rotating block, and a driving block. The rotating block and the driving rod are respectively disposed at both ends of the hemisphere. The driving rod has a bent driving section at one end of the valve body. One end of the hemisphere is a connecting end, and a plurality of evenly distributed snap-fit ​​protrusions are formed on the connecting end. A driving groove is formed inside the driving block, and a snap-fit ​​gap is formed on the outer side of the driving block. When the snap-fit ​​protrusion snaps into the snap-fit ​​gap, the hemisphere is fixed to the driving block, and the bent driving section is located in the driving groove.

2. The easy-to-install hemispherical valve according to claim 1, characterized in that: A rotating groove is formed on the rotating block, and a rotating rod is disposed in the rotating groove. The rotating rod is rotatably disposed in the rotating block. A connecting surface is formed on the rotating rod, and a limiting block is disposed on the connecting surface. A limiting groove that cooperates with the limiting block is recessed on the hemisphere.

3. The easy-to-install hemispherical valve according to claim 2, characterized in that: The other end of the rotating rod is formed with a rotating end, which has an arc surface and is rotatably disposed in the rotating groove.

4. The easy-to-install hemispherical valve according to claim 1, characterized in that: Limiting bolts are provided in the drive groove, and the bending drive section is located between adjacent limiting bolts in the drive groove.

5. The easy-to-install hemispherical valve according to claim 1, characterized in that: The drive block has guide ramps formed at both ends of the snap-fit ​​gap, and the guide ramps are used to guide the snap-fit ​​protrusion into the snap-fit ​​gap.

6. The easy-to-install hemispherical valve according to claim 1, characterized in that: The valve body is provided with a fixed side, which forms a fixed groove. The outer periphery of the rotating block is provided with an arc-shaped locking groove. The fixed side is provided with a limit protrusion. When the rotating block rotates, the limit protrusion enters the locking groove and slides in the locking groove.

7. A ball valve for easy installation according to claim 6, characterized in that: One end of the fixed groove is provided with an opening, and the hemispherical valve also includes a locking piece for closing the opening. The two ends of the locking piece are formed with locking edges. The rotating block is provided with a snap-fit ​​groove that cooperates with the locking edges. The locking piece is also provided with a locking block, and the rotating block is also provided with a limiting groove that cooperates with the locking block.

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