Ball valve capable of preventing valve rod from being touched by mistake

Abstract

The utility model belongs to the technical field of valves, in particular to a valve rod mistaken touch prevention ball valve, which is characterized by comprising a valve mechanism and a rod mechanism arranged above the valve mechanism, the rod mechanism comprises a cover body arranged above the valve mechanism, the cover body is rotatably connected with the valve mechanism, and a handle is arranged on the cover body; the locking assembly is inserted into the cover body, the locking assembly is connected with the cover body in a sliding mode, the locking assembly is in an L shape, a locking groove is formed in the bottom of the locking assembly, and a fixing hole is formed in the locking assembly; the two locking blocks are arranged on the valve mechanism, and the locking grooves are connected with the locking blocks in a clamped mode; the locking assembly is arranged in the cover body, one end of the locking assembly is inserted into the fixing hole, the other end of the locking assembly extends out of the cover body, and the locking assembly is in sliding connection with the cover body. The ball valve has the advantages that effective locking can be carried out in the opening or closing process, safety accidents caused by mistaken opening or mistaken closing of the valve are prevented, and the use safety of the ball valve is improved.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, and specifically refers to a ball valve with an anti-accidental valve stem. Background Technology

[0002] Ball valves are a common type of valve in industrial production and daily life. The closing element is a ball, which rotates around the valve body's centerline to open and close the valve. They offer advantages such as low fluid resistance, simple structure, small size, light weight, high reliability, and ease of operation, making them widely used. A ball valve typically consists of a valve body, a ball, a stem, and a handle. During operation, the handle is held to rotate the ball, thus opening and closing the valve.

[0003] However, existing ball valves are usually operated by turning the handle, which in turn drives the ball valve to rotate. Since the ball valve is inside the pipeline, the direction and angle of rotation cannot be clearly seen by turning the handle. This can easily lead to the valve being accidentally opened or closed without being noticed by the staff, thus causing safety accidents and affecting the safe use of the ball valve. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a valve stem anti-accidental contact ball valve, which can effectively lock during the opening or closing process to prevent the valve from being accidentally opened or closed, thus preventing safety accidents and improving the safety of ball valve use.

[0005] The purpose of this utility model is achieved as follows: A valve stem anti-accidental contact ball valve includes a valve mechanism and a rod mechanism disposed above the valve mechanism, the rod mechanism comprising:

[0006] A cover is disposed above the valve mechanism, the cover is connected to the valve mechanism, and a handle is provided on the cover;

[0007] A locking assembly is inserted into the cover body and is slidably connected to the cover body. The locking assembly is L-shaped, has a locking groove at the bottom, and has a fixing hole on the top.

[0008] Two locking blocks are disposed on the valve mechanism, and the locking groove engages with the locking block. The locking block is used to lock the cover.

[0009] A locking component is disposed within the cover body, with one end of the locking component inserted into the fixing hole and the other end extending outward from the cover body; the locking component is slidably connected to the cover body.

[0010] The cover is used to control the opening and closing of the valve mechanism, and the locking component is used to fix the locking component.

[0011] The present invention is further configured such that the locking component includes:

[0012] A locking cavity is provided within the cover body;

[0013] A locking post is disposed inside the cover body. One end of the locking post passes through the locking cavity and is inserted into the fixing hole, while the other end extends outward from the cover body. The locking post is slidably connected to the cover body.

[0014] The present invention is further configured such that the locking component also includes:

[0015] A limiting ring is disposed on the locking post, and the limiting ring is disposed within the locking cavity;

[0016] An elastic element is disposed above the limiting ring. The elastic element is sleeved on the locking post. One end of the elastic element abuts against the limiting ring, and the other end abuts against the inner wall of the locking cavity.

[0017] The present invention is further configured such that the locking component includes:

[0018] A snap-fit ​​tab is inserted into the cover body, and a sliding protrusion is provided at the end of the snap-fit ​​tab away from the cover body;

[0019] A locking piece is disposed at the bottom of the snap-fit ​​piece. The locking piece is L-shaped, and the locking groove and the fixing hole are both disposed on the locking piece.

[0020] The present invention is further configured such that the valve mechanism includes:

[0021] The valve body is located below the lever mechanism;

[0022] The valve core is disposed within the valve body;

[0023] Connecting pipes are provided on both sides of the valve body, and the connecting pipes are threadedly connected to the valve body;

[0024] A valve stem, one end of which is inserted into the valve body and connected to the valve core, and the other end of which is inserted into the cover body, and the valve stem is fixed to the cover body.

[0025] The present invention is further configured such that: a locking ring is provided on the valve body, the locking ring is disposed between the valve body and the cover body, and two locking blocks are disposed at intervals on the locking ring.

[0026] The present invention is further configured such that: a sealing ring is provided between the connecting pipe and the valve body, one end of the sealing ring abuts against the valve core, and the other end abuts against the connecting pipe.

[0027] By adopting the above technical solution, this utility model has at least the following beneficial effects:

[0028] 1. The locking component and the locking block work together, with the locking groove and the locking block engaging to lock the cover onto the valve mechanism, preventing the user from accidentally touching the handle and causing the ball valve to open or close accidentally. A locking component is installed inside the cover, which engages with the fixing hole to fix the locking component, improving its stability and thus further enhancing the safety of the valve.

[0029] 2. By setting up a locking cavity, locking pin, limiting ring, and elastic element, the locking pin can be inserted into the locking hole to limit the locking component. When it is necessary to remove the limit of the locking component, the user can directly pull the locking pin upward to make the bottom of the locking pin disengage from the fixing hole. At this time, the locking component removes the limit of the locking component, and the user can slide the locking component to lock or unlock the valve. The operation is more convenient and quick, improving the efficiency of use.

[0030] 3. An elastic element is provided above the limit ring. One end of the elastic element abuts against the top of the limit ring, and the other end abuts against the inner wall of the locking cavity. The elastic element can provide downward pressure to the locking pin, improve the stability of the locking pin in fixing the locking assembly, and enhance the safety of the valve. At the same time, the elastic element can also reset the locking pin after it is pulled up, which improves the convenience of operating the locking assembly. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the valve stem anti-accidental contact ball valve of this utility model;

[0032] Figure 2 This is a schematic diagram of the valve body of this utility model;

[0033] Figure 3 This is an enlarged view of part A of this utility model;

[0034] Figure 4 This is a cross-sectional view of the valve stem anti-accidental contact ball valve of this utility model;

[0035] Figure 5 This is an enlarged view of Part B of this utility model;

[0036] The figures are labeled as follows: 1-cover, 2-locking assembly, 3-locking block, 4-locking component, 11-handle, 21-clamping piece, 22-locking piece, 23-sliding protrusion, 24-locking groove, 25-fixing hole, 41-locking cavity, 42-locking post, 43-limiting ring, 44-elastic element, 51-valve body, 52-valve core, 53-connecting pipe, 54-valve stem, 55-locking ring, 56-sealing ring. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0038] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further described in subsequent drawings.

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-5 :

[0040] Example 1:

[0041] This embodiment provides a valve stem anti-accidental contact ball valve, including a valve mechanism and a rod mechanism disposed above the valve mechanism. The rod mechanism includes:

[0042] A cover 1 is positioned above the valve mechanism and is connected to the valve mechanism. A handle 11 is provided on the cover 1.

[0043] Locking component 2 is inserted into cover 1 and is slidably connected to cover 1. Locking component 2 is L-shaped and has a locking groove 24 at the bottom and a fixing hole 25 on the top.

[0044] Two locking blocks 3 are set on the valve mechanism. The locking groove 24 is engaged with the locking block 3. The locking block 3 is used to lock the cover 1.

[0045] Locking component 4 is disposed inside cover 1. One end of locking component 4 is inserted into fixing hole 25, and the other end extends outward from cover 1. Locking component 4 is slidably connected to cover 1.

[0046] The cover 1 is used to control the opening and closing of the valve mechanism, and the locking component 4 is used to fix the locking component 2.

[0047] like Figure 1-5As shown, the cover 1 is located above the valve mechanism. The cover 1 is rotatably connected to the valve mechanism. The opening and closing of the valve mechanism can be controlled by rotating the cover 1. A handle 11 is provided on one side of the cover 1. The handle 11 is integrated with the cover 1, which makes it convenient for the user to grip and increases the torque. The user can control the opening and closing of the valve mechanism by rotating the handle 11.

[0048] One end of the locking component 2 is located on the outside of the cover 1, and the other end is inserted into the end of the cover 1 away from the handle 11. The locking component 2 can slide horizontally within the cover 1. The locking block 3 is fixed to the valve mechanism. The locking component 2 has a locking groove 24, which can engage with the locking block 3. The locking component 2 can move between the locked position and the unlocked position. When the locking component 2 is in the unlocked position, the locking block 3 is not in contact with the cover 1, and the cover 1 can rotate freely. The user can control the opening and closing of the valve mechanism by turning the handle 11. When the locking component 2 is in the locked position, the locking groove 24 engages with the locking block 3, and the cover 1 is locked by the locking component 2 and cannot rotate. The user can control the opening and closing of the valve mechanism by turning the cover 1, thereby preventing accidental opening or closing of the ball valve and enhancing the safety of the ball valve.

[0049] The two locking blocks 3 can lock the ball valve in both open and closed states, enhancing the functionality of the locking assembly 2.

[0050] The locking component 4 is positioned above the locking component 2. The locking component 2 has a fixing hole 25. The locking component 4 can be vertically inserted into the fixing hole 25 to fix the locking component 2 and prevent it from sliding, thereby improving the stability of the locking component 2 and further enhancing the safety of the ball valve.

[0051] There are two fixing holes 25 along the length of the locking component 2. The two fixing holes 25 can be inserted into the fixing holes 25 to limit and fix the locking component 2 when the locking component 2 is in the locked position and the unlocked position. This improves the stability of the locking component 2 in the locked position and the unlocked position, enhances the anti-accidental contact function of the ball valve, and further improves the safety of the ball valve.

[0052] The cover 1 and handle 11 can be made of materials such as iron. The present invention preferably uses stainless steel, which has high strength and good corrosion resistance, making the cover 1 less prone to damage and having a long service life.

[0053] Example 2:

[0054] This embodiment provides a valve stem anti-accidental contact ball valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0055] Locking component 4 includes:

[0056] Locking cavity 41 is provided inside cover 1;

[0057] The locking post 42 is located inside the cover 1. One end of the locking post 42 passes through the locking cavity 41 and is inserted into the fixing hole 25, while the other end extends outward from the cover 1. The locking post 42 is slidably connected to the cover 1.

[0058] like Figure 1 , 4 As shown in Figure 5, the locking post 42 is disposed inside the cover 1. The bottom of the locking post 42 is inserted into the fixing hole 25, which can limit the locking component 2 and prevent the locking component 2 from sliding in the locked or unlocked position, thereby improving the stability of the locking component 2 in locking the cover 1.

[0059] The locking pin 42 can slide vertically inside the cover 1. The user only needs to pull the locking pin 42 upward to pull the bottom of the locking pin 42 out of the fixing hole 25, thereby releasing the locking pin 42 from locking the locking component 2. At this time, the user can control the locking component 2 to slide horizontally and move the locking component 2 to the locked position or the locked position. The operation is convenient and quick.

[0060] Locking component 4 also includes:

[0061] A limiting ring 43 is disposed on the locking post 42 and inside the locking cavity 41;

[0062] The elastic element 44 is disposed above the limiting ring 43. The elastic element 44 is sleeved on the locking post 42. One end of the elastic element 44 abuts against the limiting ring 43, and the other end abuts against the inner wall of the locking cavity 41.

[0063] like Figure 4-5 As shown, the limiting ring 43 is disposed in the locking cavity 41. The limiting ring 43 and the locking post 42 are designed as an integral unit. The limiting ring 43 can limit the locking post 42 to prevent the locking post 42 from coming out of the cover 1 when it is pulled up, thereby improving the stability of the locking assembly 4.

[0064] The elastic element 44 is sleeved on the locking pin 42. One end of the elastic element 44 abuts against the top of the limiting ring 43, and the other end abuts against the inner wall of the locking cavity 41. The elastic element 44 can provide downward pressure to the locking pin 42, improve the stability of the locking pin 42 in fixing and limiting the locking assembly 2, and enhance the safety of the valve. At the same time, the elastic element 44 can also reset the locking pin 42 after it is pulled up, which enhances the convenience of operating the locking assembly 4.

[0065] The cover 1 has a mounting groove at the end facing the handle 11. The mounting groove is located below the handle 11, and the locking pin 42 and the elastic element 44 are installed in the locking cavity 41 through the mounting groove.

[0066] Example 3:

[0067] This embodiment provides a valve stem anti-accidental contact ball valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0068] Locking component 2 includes:

[0069] A snap-fit ​​piece 21 is inserted into the cover 1, and a sliding protrusion 23 is provided at the end of the snap-fit ​​piece 21 away from the cover 1.

[0070] The locking piece 22 is located at the bottom of the snap-fit ​​piece 21. The locking piece 22 is L-shaped, and the locking groove 24 and the fixing hole 25 are both located on the locking piece 22.

[0071] like Figure 1-5 As shown, both the snap-fit ​​piece 21 and the locking piece 22 are provided with threaded holes. When a bolt is inserted into the threaded holes, the snap-fit ​​piece 21 and the locking piece 22 are threadedly connected and fixed. The snap-fit ​​piece 21 is provided with a sliding protrusion 23, which allows the user to control the locking assembly 2 to slide within the housing by holding the sliding protrusion 23, thus improving the ease of operation.

[0072] The locking piece 22 is L-shaped and includes a fixing part and a locking part. The fixing part is connected to the snap-fit ​​piece 21. The fixing part is arranged parallel to the bottom of the snap-fit ​​piece 21. The locking part is arranged perpendicular to the fixing part. The fixing hole 25 is provided on the fixing part. The locking groove 24 is provided at the bottom of the locking part. When the locking groove 24 is in the locked position, it engages with the locking block 3.

[0073] The fixing part and the locking part are designed as a whole. Both the snap-fit ​​piece 21 and the locking piece 22 are made of stainless steel, which has high strength and long service life, and can enhance the durability of the locking assembly 2.

[0074] The locking piece 22 can be inserted into the cover 1 through the mounting slot and connected to the snap-fit ​​piece 21, and the bottom of the elastic element 44 contacts the locking piece 22.

[0075] The valve mechanism includes:

[0076] Valve body 51 is located below the lever mechanism;

[0077] Valve core 52 is disposed inside valve body 51;

[0078] Connecting pipe 53 is provided on both sides of valve body 51 and is threadedly connected to valve body 51.

[0079] Valve stem 54, one end of which is inserted into valve body 51 and connected to valve core 52, and the other end is inserted into cover 1, and valve stem 54 is fixed to cover 1.

[0080] like Figure 1-5As shown, one end of the valve stem 54 is connected to the valve core 52, and the other end is fixed to the cover 1. Rotating the cover 1 can drive the valve stem 54 to rotate, and rotating the valve stem 54 can drive the valve core 52 to rotate, thereby controlling the opening and closing of the ball valve. A sealing ring is provided between the valve stem 54 and the valve body 51 to prevent the medium passing through the ball valve from flowing out between the valve stem 54 and the valve body 51, thereby improving the sealing performance of the valve.

[0081] The end of the connecting pipe 53 facing the valve body 51 is provided with an external thread, and the end of the valve body 51 facing the connecting pipe 53 is provided with an internal thread. The valve body 51 and the connecting pipe 53 are connected by threads.

[0082] A locking ring 55 is provided on the valve body 51. The locking ring 55 is located between the valve body 51 and the cover 1, and two locking blocks 3 are spaced apart on the locking ring 55.

[0083] like Figure 2-5 As shown, the locking ring 55 is fixed above the valve body 51 and is located on the outside of the valve stem 54. The locking ring 55 is located between the valve body 51 and the cover 1. The bottom of the cover 1 is rotatably connected to the top of the locking ring 55. The cover 1 drives the valve stem 54 to rotate, thereby controlling the opening and closing of the ball valve. The locking groove 24 on the locking plate 22 can engage with the locking block 3, thereby locking the locking block 3 inside the cover 1 and preventing it from moving. This realizes the valve's anti-accidental contact function, preventing users from accidentally opening or closing the ball valve and improving the valve's safety.

[0084] A sealing ring 56 is provided between the connecting pipe 53 and the valve body 51. One end of the sealing ring 56 abuts against the valve core 52, and the other end abuts against the connecting pipe 53.

[0085] like Figure 4 As shown, a sealing ring 56 is provided between the connecting pipe 53 and the valve core 52, which can seal the ball valve and prevent the medium passing through the ball valve from flowing out between the connecting pipe 53 and the valve body 51, polluting the environment and improving the safety of the valve.

[0086] The sealing ring 56 is made of fluororubber, which has strong corrosion resistance and wear resistance, as well as a long service life. It can effectively seal the ball valve and improve the safety and stability of the ball valve.

[0087] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A stem-protected ball valve, comprising a valve mechanism and a stem mechanism disposed above the valve mechanism, characterized in that, The lever mechanism includes: A cover (1) is disposed above the valve mechanism. The cover (1) is connected to the valve mechanism. A handle (11) is provided on the cover (1). Locking component (2), the locking component (2) is inserted into the cover (1), the locking component (2) is slidably connected to the cover (1), the locking component (2) is L-shaped, the bottom of the locking component (2) is provided with a locking groove (24), and the locking component (2) is provided with a fixing hole (25); Two locking blocks (3) are provided on the valve mechanism, the locking groove (24) is engaged with the locking block (3), and the locking block (3) is used to lock the cover (1); A locking component (4) is disposed inside the cover (1). One end of the locking component (4) is inserted into the fixing hole (25), and the other end extends outward from the cover (1). The locking component (4) is slidably connected to the cover (1). The cover (1) is used to control the opening and closing of the valve mechanism, and the locking component (4) is used to fix the locking component (2).

2. The stem-protected ball valve according to claim 1, characterized in that, The locking component (4) includes: A locking cavity (41) is provided inside the cover (1); A locking post (42) is disposed inside the cover (1). One end of the locking post (42) passes through the locking cavity (41) and is inserted into the fixing hole (25), while the other end extends outward from the cover (1). The locking post (42) is slidably connected to the cover (1).

3. The stem-protected ball valve according to claim 2, characterized in that, The locking component (4) also includes: A limiting ring (43) is disposed on the locking post (42) and the limiting ring (43) is disposed in the locking cavity (41); An elastic element (44) is disposed above the limiting ring (43). The elastic element (44) is sleeved on the locking post (42). One end of the elastic element (44) abuts against the limiting ring (43), and the other end abuts against the inner wall of the locking cavity (41).

4. The stem-protected ball valve according to claim 1, characterized in that, The locking component (2) includes: A snap-fit ​​piece (21) is inserted into the cover (1), and a sliding protrusion (23) is provided at the end of the snap-fit ​​piece (21) away from the cover (1); A locking piece (22) is disposed at the bottom of the snap-fit ​​piece (21). The locking piece (22) is L-shaped. The locking groove (24) and the fixing hole (25) are both disposed on the locking piece (22).

5. The stem-protected ball valve according to claim 4, characterized in that, The valve mechanism includes: Valve body (51) is located below the lever mechanism; The valve core (52) is disposed inside the valve body (51); A connecting pipe (53) is provided on both sides of the valve body (51), and the connecting pipe (53) is threadedly connected to the valve body (51); A valve stem (54) is inserted into the valve body (51) at one end and connected to the valve core (52), and the other end is inserted into the cover (1). The valve stem (54) is fixed to the cover (1).

6. The stem-protected ball valve according to claim 5, characterized in that, The valve body (51) is provided with a locking ring (55), which is located between the valve body (51) and the cover (1), and two locking blocks (3) are spaced apart on the locking ring (55).

7. The stem-protected ball valve according to claim 5, characterized in that, A sealing ring (56) is provided between the connecting pipe (53) and the valve body (51). One end of the sealing ring (56) abuts against the valve core (52), and the other end abuts against the connecting pipe (53).

Images