Self-lubricating ball valve

Abstract

The utility model discloses a self-lubricating ball valve, and relates to the technical field of ball valves. The self-lubricating ball valve comprises a ball valve body, a valve rod seat is arranged on the ball valve body, a bearing seat is arranged in the valve rod seat, the valve rod body is arranged in the bearing seat, a lubricating seat is movably connected to the side face of the valve rod seat in a clamped mode, the lubricating seat comprises a horizontal bin arranged on the side face of the lubricating seat, the horizontal bin is inserted into the valve rod seat, and a lubricating wheel is embedded in the side face of the horizontal bin. An oval block is arranged on the valve rod body, and an abutting mechanism is arranged on the side face of the valve rod base. According to the self-lubricating ball valve, in the process that the valve rod body is screwed to control opening and closing of the valve, the valve rod body can drive the oval block to move, the oval block drives the lubricating wheel to rotate, when the lubricating wheel rotates, lubricating oil attached to the surface of the lubricating wheel is transmitted to the oval block, and the connecting position of the valve rod body and the bearing pedestal is lubricated; therefore, resistance at the joint of the valve rod body and the bearing seat is reduced, service life is prolonged, and the valve rod body is not prone to jamming.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a self-lubricating ball valve. Background Technique

[0002] Ball valves have rapidly developed into a major type of valve. Ball valves are mainly used in pipelines to cut off, distribute, and change the flow direction of the medium. It only requires a 90-degree rotation operation and a very small rotational torque to close tightly.

[0003] Currently, the existing ball valves mainly consist of a valve seat, a valve stem, and a ball, etc. During use, rotating the valve stem drives the ball to move, which can change the liquid flow state. Usually, a bearing is provided between the valve stem and the valve seat. Since lubrication is not usually designed at this position, when using a ball valve in some places with high usage frequency, the connection position between the valve stem and the bearing wears greatly. After long-term use, it is easy to produce jamming and difficult-to-rotate phenomena. If forced to rotate strongly, it may cause the valve stem to break, affecting the use of the ball valve. In view of the deficiencies of the existing technology, the utility model provides a self-lubricating ball valve to solve the above problems. Content of the Utility Model

[0004] In view of the deficiencies of the existing technology, the utility model provides a self-lubricating ball valve. Through the design of a lubricating seat and a pressing mechanism, during the process of each rotation of the valve stem main body to control the opening and closing of the valve, the valve stem main body can drive the elliptical block to move. The elliptical block applies a thrust to the lubricating wheel, driving the lubricating wheel to rotate. When the lubricating wheel rotates, the lubricating oil attached to its surface is transferred to the elliptical block and then falls by gravity to the connection position between the valve stem main body and the bearing seat, lubricating the connection position. Therefore, the resistance at the connection position between the valve stem main body and the bearing seat is reduced, the service life is extended, and the valve stem main body is not prone to jamming.

[0005] To achieve the above objectives, the utility model is realized through the following technical solutions: A self-lubricating ball valve includes a ball valve main body. A valve stem seat is provided on the ball valve main body. A bearing seat is provided inside the valve stem seat. A valve stem main body is provided inside the bearing seat;

[0006] The side of the valve stem seat is movably clamped with a lubricating seat. The lubricating seat includes a horizontal chamber provided on its side. The horizontal chamber is inserted into the inside of the valve stem seat. A lubricating wheel is embedded on the side of the horizontal chamber;

[0007] An elliptical block is provided on the valve stem main body;

[0008] A pressing mechanism is provided on the side of the valve stem seat. The pressing mechanism includes a guide rod provided on the side of the valve stem seat and a slider fixedly connected to the lubricating seat. A baffle is fixedly connected to the guide rod. A spring is fixedly connected between the baffle and the slider. The slider is slidably connected to the guide rod.

[0009] Preferably, a limiting groove corresponding to the position of the horizontal bin is formed on the valve stem seat.

[0010] Preferably, a stop block is fixedly connected to the horizontal bin.

[0011] Preferably, an inclined disk is connected to the elliptical block, and a plurality of groups of leakage holes are formed in the inclined disk.

[0012] Preferably, an oil filling nozzle is provided on the lubricating seat.

[0013] Preferably, an oil outlet groove is formed inside the horizontal bin.

[0014] The utility model discloses a self-lubricating ball valve, and the beneficial effects thereof are as follows:

[0015] In the self-lubricating ball valve, through the design of the lubricating seat and the pressing mechanism, during the process of each rotation of the valve stem main body to control the opening and closing of the valve, the valve stem main body can drive the elliptical block to move, use the elliptical block to apply a thrust to the lubricating wheel, drive the lubricating wheel to rotate, and when the lubricating wheel rotates, transfer the lubricating oil attached to its surface to the elliptical block, and then fall to the connection position between the valve stem main body and the bearing seat by gravity to lubricate the connection position. Therefore, the resistance at the connection position between the valve stem main body and the bearing seat is reduced, the service life is prolonged, and the valve stem main body is not easily stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is an internal structure diagram of the valve stem seat of the present utility model;

[0019] Figure 3 is a schematic diagram of the structure of the valve stem main body of the present utility model;

[0020] Figure 4 is a disassembled schematic diagram of the valve stem main body of the present utility model;

[0021] Figure 5 is a schematic diagram of the structure of the pressing mechanism of the present utility model;

[0022] Figure 6 is a sectional view of the lubricating seat of the present utility model.

[0023] In the figure: 1. ball valve body; 2. valve stem seat; 201. bearing seat; 202. limit groove; 3. valve stem body; 301. elliptical block; 302. tilting plate; 3021. leakage hole; 4. lubrication seat; 401. horizontal bin; 4011. oil outlet groove; 402. lubrication wheel; 403. oil nozzle; 404. block; 5. tightening mechanism; 501. guide rod; 502. baffle; 503. spring; 504. slider. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The embodiment of the present application provides a self-lubricating ball valve to solve the problem that when the ball valve is used in places with high frequency of use, the connection between the valve stem and the bearing is severely worn, and it is easy to get stuck and difficult to rotate after long-term use. If it is rotated forcefully, the valve stem may break, affecting the use of the ball valve.

[0026] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] The utility model embodiment discloses a self-lubricating ball valve. Figure 1-6 As shown, it comprises a ball valve body 1, a valve stem seat 2 is arranged on the ball valve body 1, a bearing seat 201 is arranged inside the valve stem seat 2, and a valve stem body 3 is arranged inside the bearing seat 201;

[0028] The side of the valve stem seat 2 is movably connected with a lubrication seat 4, and a refueling nozzle 403 is provided on the lubrication seat 4. The refueling nozzle 403 is used to regularly add lubricating liquid to the inside of the lubrication seat 4. The lubrication seat 4 includes a horizontal bin 401 arranged on its side, and the horizontal bin 401 is inserted into the inside of the valve stem seat 2. A limiting groove 202 corresponding to the position of the horizontal bin 401 is opened on the valve stem seat 2, and the horizontal bin 401 is slidably connected inside the limiting groove 202.

[0029] A lubrication wheel 402 is embedded in the side of the horizontal bin 401; a block 404 is fixedly connected to the horizontal bin 401, an oil outlet groove 401 is opened inside the horizontal bin 401, the lubrication seat 4 and the interior of the horizontal bin 401 are connected, and the oil outlet groove 401 is set to facilitate the lubrication liquid in the inner cavity of the lubrication seat 4 and the horizontal bin 401 to adhere to the lubrication wheel 402.

[0030] An elliptical block 301 is provided on the valve stem body 3. An inclined disk 302 is connected to the elliptical block 301. A plurality of sets of leakage holes 3021 are formed in the inclined disk 302. After the set elliptical block 301 adheres to the oil, through the design of the inclined disk 302 and the plurality of sets of leakage holes 3021, it is convenient to make the lubricating oil evenly fall on each position of the bearing seat 201 to ensure uniform lubrication.

[0031] A tightening mechanism 5 is provided on the side of the valve stem seat 2. The tightening mechanism 5 includes a guide rod 501 provided on the side of the valve stem seat 2 and a slider 504 fixedly connected to the lubricating seat 4. A baffle 502 is fixedly connected to the guide rod 501. A spring 503 is fixedly connected between the baffle 502 and the slider 504. The slider 504 is slidably connected to the guide rod 501.

[0032] During the use of this self-lubricating ball valve, through the design of the lubricating seat 4 and the tightening mechanism 5, each time the valve stem body 3 is rotated to control the opening and closing of the valve, the valve stem body 3 can drive the elliptical block 301 to move. The elliptical block 301 applies a thrust to the lubricating wheel 402 to drive the lubricating wheel 402 to rotate. When the lubricating wheel 402 rotates, the lubricating oil adhering to its surface is transferred to the elliptical block 301 and then falls by gravity to the connection between the valve stem body 3 and the bearing seat 201 to lubricate the connection position. Therefore, the resistance at the connection between the valve stem body 3 and the bearing seat 201 is reduced, the service life is extended, and the valve stem body 3 is not easily stuck.

[0033] When the elliptical block 301 applies a thrust to the lubricating wheel 402, the lubricating wheel 402 and the horizontal bin 401 move horizontally. The horizontal bin 401 drives the lubricating seat 4 to move. The lubricating seat 4 drives the slider 504 to move along the guide rod 501 and compress the spring 503. When the valve stem body 3 resets, the spring 503 resets and drives the slider 504, the lubricating seat 4, the horizontal bin 401 and the lubricating wheel 402 to reset.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-lubricating ball valve, comprising a ball valve body (1), characterized in that, The ball valve body (1) is provided with a valve stem seat (2). Inside the valve stem seat (2), there is a bearing seat (201), and inside the bearing seat (201), there is a valve stem body (3). A lubricating seat (4) is movably clamped to the side of the valve stem seat (2). The lubricating seat (4) includes a horizontal chamber (401) provided on its side. The horizontal chamber (401) is inserted into the inside of the valve stem seat (2), and a lubricating wheel (402) is embedded on the side of the horizontal chamber (401). An elliptical block (301) is provided on the valve stem body (3). A pressing mechanism (5) is provided on the side of the valve stem seat (2). The pressing mechanism (5) includes a guide rod (501) provided on the side of the valve stem seat (2) and a slider (504) fixedly connected to the lubricating seat (4). A baffle (502) is fixedly connected to the guide rod (501), and a spring (503) is fixedly connected between the baffle (502) and the slider (504). The slider (504) is slidably connected to the guide rod (501).

2. The self-lubricating ball valve according to claim 1, wherein A limiting groove (202) corresponding to the position of the horizontal chamber (401) is formed on the valve stem seat (2).

3. The self-lubricating ball valve according to claim 2, characterized in that, A stopper (404) is fixedly connected to the horizontal chamber (401).

4. A self-lubricating ball valve according to claim 1, characterized in that, An inclined plate (302) is connected to the elliptical block (301), and a plurality of sets of leakage holes (3021) are formed on the inclined plate (302).

5. The self-lubricating ball valve according to claim 1, wherein, An oil filling nozzle (403) is provided on the lubricating seat (4).

6. A self-lubricating ball valve according to claim 1, characterized in that, An oil outlet groove (4011) is formed inside the horizontal chamber (401).

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