Valve rod

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a valve rod which is characterized in that one end of a rod body is a closed end, the other end of the rod body is a mounting end, the closed end is fixedly connected with a connecting end and used for connecting other components such as a valve element, a connecting rod is arranged in the middle of the rod body, and a first boss, a second boss and a third boss which protrude in the radial direction are integrally formed on the peripheral face of the connecting rod. The structure connection is firm, the service life is long, the first boss and the third boss are each provided with a plurality of balance grooves, the clamping force can be reduced, friction and abrasion can be reduced, it is ensured that the valve rod can move smoothly and accurately, the balance grooves can be used for storing oil and achieving the lubricating effect, gaps among the first boss, the second boss and the third boss can also store certain lubricating oil, and the service life is long. The end, away from the connecting end, of the closed end, the two ends of the second boss and the end, close to the connecting rod, of the mounting end are provided with a plurality of step-shaped intercepting grooves, lubricating oil can be guided step by step, and excessive residual oil is prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve technical field, especially relate to a valve rod. BACKGROUND

[0002] Valves are control components in fluid conveying systems, which can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. There are many types of valves, and there are many classification methods. According to the general classification method, they can be divided into gate valves, stop valves, plug valves, ball valves, butterfly valves, diaphragm valves, check valves, throttle valves, safety valves, pressure reducing valves, drain valves and regulating valves. The valve rod is an important component of the valve, which is used for transmission, and is connected to the actuator or handle at the top and directly drives the valve core to move or rotate at the bottom to realize the opening and closing or regulation of the valve. The existing valve rod is prone to excessive residual oil when adding lubricating oil, and the balance groove will have burrs after processing, thereby affecting lubrication. SUMMARY

[0003] The utility model aims at the above-mentioned technical problem, provides a kind of valve rod to solve the problem raised in the above background.

[0004] Therefore, the utility model provides a kind of valve rod, one end of stem is closed end, the other end is mounting end, closed end one end is fixedly connected with connecting end, the middle part of stem is provided with connecting rod, the outer circumferential surface of connecting rod is equipped with radial protruding boss one, boss two and boss three;

[0005] Balance groove, boss one and boss three are all provided with a plurality of balance grooves;

[0006] Intercepting groove, the end of closed end away from connecting end, the two ends of boss two and the end of mounting end close to connecting rod are provided with a plurality of intercepting grooves, and the intercepting grooves are in stepped shape.

[0007] In the above technical scheme, further, the section of balance groove is V-shaped.

[0008] In the above technical scheme, further, the intercepting groove on closed end is composed of three steps, and the size and depth gradually decrease from the end of closed end to the inside of closed end, the intercepting groove on one end of boss two close to closed end is composed of four steps, the intercepting groove composed of four steps and two steps is staggered arranged on one end of boss two close to mounting end, and the size and depth gradually decrease from the end of boss two to the inside of boss two, the intercepting groove composed of four steps and two steps is staggered arranged on the end of mounting end close to connecting rod, and the size and depth gradually decrease from the end of mounting end to the inside of mounting end.

[0009] In the above technical scheme, further, the mounting end is provided with a threaded hole.

[0010] Further, mounting grooves are arranged on both sides of the connecting end, and mounting holes are arranged on the bottom wall of the mounting grooves.

[0011] Further, grooves are arranged on both sides of the connecting end.

[0012] Further, the connecting end is made of nickel material.

[0013] Further, an oil storage groove is arranged at the inner end of the threaded hole, oil delivery channels are arranged at both ends of the oil storage groove, an oil outlet hole is arranged on the side wall of the intercepting groove on the mounting end, and the oil outlet hole is communicated with the oil delivery channels.

[0014] The utility model discloses the beneficial effect that:

[0015] 1. A plurality of balance grooves are arranged on the boss one and the boss three, which can reduce clamping force, reduce friction and wear, ensure smooth and accurate movement of the valve rod, and also can be used for oil storage to realize lubricating effect.

[0016] 2. The gap between the boss one, the boss two and the boss three can also store a certain amount of lubricating oil, a plurality of intercepting grooves are arranged on the end portion away from the connecting end of the closed end, both end portions of the boss two and the end portion close to the connecting rod of the mounting end, the intercepting grooves are ladder-shaped, can guide the lubricating oil step by step, and prevent excessive remaining oil.

[0017] 3. The connecting end is made of nickel material, which can play a rust-proof effect. DRAWINGS

[0018] Figure 1 is the structural schematic diagram of the utility model;

[0019] Figure 2 is the internal structure section view of the utility model;

[0020] Figure 3 is the local enlarged view of A in the utility model; Figure 2

[0021] Figure 4 is the local enlarged view of B in the utility model; Figure 2

[0022] The marks in the drawing are as follows: 1 - rod body, 2 - closed end, 3 - connecting end, 4 - threaded hole, 5 - connecting rod, 6 - boss one, 7 - boss two, 8 - boss three, 9 - balance groove, 10 - intercepting groove, 11 - mounting end, 12 - mounting groove, 13 - mounting hole, 14 - groove, 15 - oil storage groove, 16 - oil delivery channel, 17 - oil outlet hole. CONCRETE IMPLEMENTATION

[0023] ​​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0024] Embodiment 1

[0025] The embodiment provides a valve rod, which comprises:

[0026] A rod body 1, one end of the rod body 1 is a closed end 2, the other end is a mounting end 11, a connecting end 3 is fixedly connected to one end of the closed end 2, a connecting rod 5 is arranged in the middle of the rod body 1, and a radially protruding boss one 6, a boss two 7 and a boss three 8 are arranged on the outer circumferential surface of the connecting rod 5;

[0027] A balance groove 9 is arranged on the boss one 6 and the boss three 8.

[0028] A flow-cutting groove 10 is arranged at the end of the closed end 2 away from the connecting end 3, both ends of the boss two 7 and the end of the mounting end 11 close to the connecting rod 5.

[0029] It can be seen that, in the embodiment, one end of the rod body 1 is the closed end 2, the other end is the mounting end 11, the connecting end 3 is fixedly connected to one end of the closed end 2, for connecting a valve core and other components, the connecting rod 5 is arranged in the middle of the rod body 1, the radially protruding boss one 6, the boss two 7 and the boss three 8 are integrally formed on the outer circumferential surface of the connecting rod 5, the structure is connected and fastened, the service life is long, the balance groove 9 is arranged on the boss one 6 and the boss three 8, the clamping force can be reduced, the friction and wear are reduced, the valve rod can be smoothly and accurately moved, the valve rod can also be used for oil storage, the lubricating effect is achieved, the gap between the boss one 6, the boss two 7 and the boss three 8 can also store a certain amount of lubricating oil, the flow-cutting groove 10 is arranged at the end of the closed end 2 away from the connecting end 3, both ends of the boss two 7 and the end of the mounting end 11 close to the connecting rod 5, the flow-cutting groove 10 is in a stepped shape, the lubricating oil can be guided step by step, and the excessive remaining oil is prevented.

[0030] Embodiment 2

[0031] The embodiment provides a valve rod, which comprises the technical solutions of the above-mentioned embodiments and has the following technical features.

[0032] The balance groove 9 is in a V-shaped cross section.

[0033] It can be seen that, in the embodiment, the V-shaped balance groove 9 is compared with the conventional U-shaped balance groove 9, which is helpful for one-time molding during processing, and the cutting surface is reduced, and the burr after processing is less.

[0034] Embodiment 3:

[0035] The valve stem of the embodiment has the following technical features in addition to the technical solutions of the above embodiments.

[0036] The flow-cutting groove 10 on the closed end 2 is composed of three steps, and the size and depth gradually decrease from the end of the closed end 2 to the inside of the closed end 2. The flow-cutting groove 10 on the second boss 7 near one end of the closed end 2 is composed of four steps. The flow-cutting grooves 10 composed of four steps and two steps are staggered on the second boss 7 near the mounting end 11, and the size and depth gradually decrease from the end of the second boss 7 to the inside of the second boss 7. The flow-cutting grooves 10 composed of four steps and two steps are staggered on the mounting end 11 near the end of the connecting rod 5, and the size and depth gradually decrease from the end of the mounting end 11 to the inside of the mounting end 11.

[0037] The valve stem of the embodiment has the following technical features in addition to the technical solutions of the above embodiments.

[0038] Embodiment 4:

[0039] The valve stem of the embodiment has the following technical features in addition to the technical solutions of the above embodiments.

[0040] The mounting end 11 is provided with a threaded hole 4.

[0041] The valve stem of the embodiment has the following technical features in addition to the technical solutions of the above embodiments.

[0042] Embodiment 5:

[0043] The valve stem of the embodiment has the following technical features in addition to the technical solutions of the above embodiments.

[0044] The mounting grooves 12 are provided on both sides of the connecting end 3, and the mounting holes 13 are provided on the bottom walls of the mounting grooves 12.

[0045] It can be seen from the embodiment that the mounting groove 12 is arranged on both sides of the connecting end 3, and the mounting hole 13 is arranged on the bottom wall of the mounting groove 12.

[0046] Embodiment 6:

[0047] The valve rod provided in the embodiment comprises the technical scheme of the above-mentioned embodiments and has the following technical features.

[0048] The recess 14 is arranged on both sides of the connecting end 3.

[0049] It can be seen from the embodiment that the recess 14 is arranged on both sides of the connecting end 3, so that the overall weight can be reduced.

[0050] Embodiment 7:

[0051] The valve rod provided in the embodiment comprises the technical scheme of the above-mentioned embodiments and has the following technical features.

[0052] The connecting end 3 is made of nickel.

[0053] It can be seen from the embodiment that the connecting end 3 is made of nickel, so that the anti-rust effect can be achieved.

[0054] Embodiment 8:

[0055] The valve rod provided in the embodiment comprises the technical scheme of the above-mentioned embodiments and has the following technical features.

[0056] The oil storage groove 15 is arranged at the inner end of the threaded hole 4, the oil delivery channels 16 are arranged at both ends of the oil storage groove 15, the oil outlet holes 17 are arranged in the side walls of the intercepting grooves 10 on the mounting end 11, and the oil delivery channels 16 are communicated with the oil outlet holes 17.

[0057] It can be seen from the embodiment that the oil storage groove 15 is arranged at the inner end of the threaded hole 4, so that the lubricating oil can be stored, the oil delivery channels 16 are arranged at both ends of the oil storage groove 15, the oil delivery channels 16 are communicated with the oil outlet holes 17, the oil outlet holes 17 are arranged in the side walls of the intercepting grooves 10 on the mounting end 11, when oil needs to be added, the actuating mechanism or the handle can be disassembled from the threaded hole 4, and then the lubricating oil can be injected into the threaded hole 4, the lubricating oil flows out of the oil outlet holes 17, the valve rod is lubricated, and the service life and performance of the valve rod are improved.

[0058] The embodiments of the present application are described above with reference to the drawings, and the embodiments and features in the embodiments of the present application can be combined with each other without conflict, and the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are only illustrative but not restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection of the present application.

Claims

1. A valve stem, characterized in that, include: The rod (1) has a closed end (2) at one end and an installation end (11) at the other end. A connecting end (3) is fixedly connected to one end of the closed end (2). A connecting rod (5) is provided in the middle of the rod (1). The outer circumferential surface of the connecting rod (5) is provided with a radially protruding boss one (6), a boss two (7) and a boss three (8). Balance groove (9), and several balance grooves (9) are provided on both the first boss (6) and the third boss (8); The intercepting groove (10) has several intercepting grooves (10) at the end of the closed end (2) away from the connecting end (3), at both ends of the boss (7) and at the end of the mounting end (11) near the connecting rod (5). The intercepting groove (10) is stepped.

2. A valve stem according to claim 1, characterized in that, The cross-section of the balancing groove (9) is V-shaped.

3. A valve stem according to claim 1, characterized in that, The intercepting groove (10) on the closed end (2) consists of three steps, and the size and depth decrease from the end of the closed end (2) to the inside of the closed end (2). The intercepting groove (10) on the end of the second boss (7) near the closed end (2) consists of four steps. The end of the second boss (7) near the installation end (11) is staggered with intercepting grooves (10) consisting of four steps and two steps, and the size and depth decrease from the end of the second boss (7) to the inside of the second boss (7). The end of the installation end (11) near the connecting rod (5) is staggered with intercepting grooves (10) consisting of four steps and two steps, and the size and depth decrease from the end of the installation end (11) to the inside of the installation end (11).

4. A valve stem according to claim 1, characterized in that, The mounting end (11) is provided with a threaded hole (4).

5. A valve stem according to claim 1, characterized in that, The connecting end (3) has mounting grooves (12) on both sides, and mounting holes (13) are provided on the bottom wall of the mounting grooves (12).

6. A valve stem according to claim 5, characterized in that, The connecting end (3) has grooves (14) on both sides.

7. A valve stem according to claim 6, characterized in that, The connecting end (3) is made of nickel.

8. A valve stem according to claim 4, characterized in that, The inner end of the threaded hole (4) is provided with an oil storage tank (15), and the two ends of the oil storage tank (15) are provided with oil delivery channels (16). The side wall of the intercepting groove (10) on the mounting end (11) is provided with an oil outlet hole (17), which is connected to the oil delivery channel (16).

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