Valve rod nut

Abstract

The utility model relates to the technical field of valves, in particular to a valve rod nut. Comprising a nut body and an auxiliary assembly, the nut body is provided with a stepped mounting hole, a first flow guide channel and a second flow guide channel, and the auxiliary assembly comprises a first mounting base, a first oil nozzle, a second mounting base, a second oil nozzle and an ejection component. In the same way, the lubricant can be conveyed into the second flow guide channel through the cooperation of the second mounting seat and the second oil nozzle, and the lubricant is conveyed to the cooperation position of the valve rod and the nut body for lubrication, so that in the use process, the lubricant can be conveyed into the first flow guide channel, and is conveyed to the cooperation position of the valve rod and the nut body for lubrication. When opening and closing of the valve are more and more laborious, lubricating treatment of a transmission part can be achieved, and opening and closing of the valve body are convenient and easy.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve stem nut. Background Art

[0002] Valves are commonly used components in pipeline engineering. Common ones include gate valves and butterfly valves. The valve stem nut is a more important component among valve components. It has certain strength and pressure resistance. During the operation of the valve, the force of the valve stem will be directly applied to the valve stem nut. The valve stem nut and the valve stem rotate by means of threads. At the same time, the friction coefficient of the valve stem nut is small, which can well avoid the situation of biting or rusting.

[0003] However, in actual use, as the product is used for a longer time, the friction coefficient of the valve stem nut will gradually increase, making it increasingly difficult to open and close the valve, causing inconvenience in use. Utility Model Content

[0004] The purpose of the utility model is to provide a valve stem nut which can realize lubrication of the transmission part when it is found that the opening and closing of the valve are becoming more and more difficult during use, so as to facilitate the easy opening and closing of the valve body.

[0005] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: The present invention provides a valve stem nut, comprising a nut body, the nut body having a stepped mounting hole, the stepped mounting hole passing through the nut body and being located on the nut body, and further comprising an auxiliary component;

[0006] The auxiliary assembly includes a first mounting seat, a first oil nozzle, a second mounting seat, a second oil nozzle and an ejection member, wherein the first mounting seat is detachably connected to the nut body and is located on the nut body, the first oil nozzle is threadedly connected to the first mounting seat and is located on the first mounting seat, the second mounting seat is detachably connected to the nut body and is located on a side of the nut body away from the first mounting seat, the second oil nozzle is threadedly connected to the second mounting seat and is located on the second mounting seat, and the ejection members are provided on both sides of the nut body;

[0007] The nut body further comprises a first flow guide channel and a second flow guide channel. The first flow guide channel is located on a side of the nut body close to the first mounting seat; the second flow guide channel is located on a side of the nut body close to the second mounting seat.

[0008] Wherein, the nut body further has a mounting groove, and the mounting groove is located below the mounting portion of the nut body.

[0009] Wherein, the auxiliary component further includes a sealing gasket, which is detachably connected to the nut body and is located in the installation groove.

[0010] Wherein, the ejection member includes a first screw and a second screw, the first screw is threadedly connected to the nut body and is located on one side of the nut body; the second screw is threadedly connected to the nut body and is located on the side of the nut body away from the first screw.

[0011] In which, the auxiliary component also includes a first sealing ring and a second sealing ring, the first sealing ring is detachably connected to the nut body and is sleeved on the nut body; the second sealing ring is detachably connected to the nut body and is sleeved on the nut body, and is located on the side of the nut body close to the first sealing ring.

[0012] The nut body is provided with a stepped mounting hole, which is convenient for installation on the valve body. The nut body also has a first flow guide channel and a second flow guide channel. The first mounting seat is mounted on one side of the nut body, the first oil nozzle is mounted on the first mounting seat, the second mounting seat is mounted on one side of the nut body, and the second oil nozzle is mounted on the second mounting seat. The ejection components are arranged on both sides of the nut body for easy disassembly. During use, when it is found that the opening and closing of the valve is becoming more and more difficult, lubricant can be transported into the first flow guide channel through the cooperation of the first mounting seat and the first oil nozzle, and transferred to the cooperation position between the valve stem and the nut body for lubrication. Similarly, lubricant can also be transported into the second flow guide channel through the cooperation of the second mounting seat and the second oil nozzle, and transferred to the cooperation position between the valve stem and the nut body for lubrication. Therefore, during use, when it is found that the opening and closing of the valve is becoming more and more difficult, lubrication of the transmission parts can be achieved, which is conducive to the easy opening and closing of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention can be further described by way of non-limiting embodiments given in the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of the valve stem nut according to the first embodiment of the present invention.

[0015] Figure 2 Schematic diagram of the position of the installation slot of the first embodiment of the present invention.

[0016] Figure 3 This is a schematic structural diagram of the first flow guide channel of the first embodiment of the present utility model.

[0017] Figure 4 This is a schematic diagram of the overall structure of the valve stem nut according to the second embodiment of the present invention.

[0018] In the figure: 101-nut body, 102-stepped mounting hole, 103-first mounting seat, 104-first oil nozzle, 105-second mounting seat, 106-second oil nozzle, 107-first flow guide channel, 108-second flow guide channel, 109-mounting groove, 110-sealing gasket, 111-first screw, 112-second screw, 201-first sealing ring, 202-second sealing ring. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1:

[0021] like Figures 1 to 3 As shown, Figure 1 It is a schematic diagram of the overall structure of the valve stem nut. Figure 2 is a schematic diagram of the position of the installation slot 109, Figure 3 107 is a structural diagram of the first flow guide channel. The utility model provides a valve stem nut: including a nut body 101 and an auxiliary component, the nut body 101 having a stepped mounting hole 102, a first flow guide channel 107 and a second flow guide channel 108, the auxiliary component including a first mounting seat 103, a first oil nozzle 104, a second mounting seat 105, a second oil nozzle 106, a sealing gasket 110 and an ejection member, the ejection member including a first screw 111 and a second screw 112. The above solution can be used to achieve lubrication of the transmission parts when it is found that the opening and closing of the valve is becoming increasingly difficult, which is conducive to the easy opening and closing of the valve body. It can be understood that the above solution can facilitate the easy opening and closing of the valve body.

[0022] In this embodiment, the nut body 101 has a stepped mounting hole 102, which passes through the nut body 101 and is located on the nut body 101. The stepped mounting holes 102 are arranged in a ring array on the nut body 101, which facilitates the installation of the nut body 101 on the sealing seat at the top of the valve body. The valve stem of this application is segmented, and the cross-sections of the two sections are T-shaped, which are connected to each other by bolts. The bottom optical axis end is connected to the valve core and can slide vertically on the sealing seat. The top threaded end can rotate in the internal thread cavity of the nut body 101, thereby realizing the vertical movement of the bottom optical axis end, driving the valve core to move up and down, and realizing the opening and closing of the valve.

[0023] The first mounting seat 103 is detachably connected to the nut body 101 and is located on the nut body 101. The first oil nozzle 104 is threadedly connected to the first mounting seat 103 and is located on the first mounting seat 103. The second mounting seat 105 is detachably connected to the nut body 101 and is located on a side of the nut body 101 away from the first mounting seat 103. The second oil nozzle 106 is threadedly connected to the second mounting seat 105 and is located on the second mounting seat 105. The ejection members are provided on both sides of the nut body 101.

[0024] The nut body 101 further comprises a first flow guide channel 107 and a second flow guide channel 108. The first flow guide channel 107 is located on the side of the nut body 101 near the first mounting seat 103, and the second flow guide channel 108 is located on the side of the nut body 101 near the second mounting seat 105. The first flow guide channel 107 and the second flow guide channel 108 are respectively formed on the nut body 101, each having an L-shaped cross-section and communicating with the internal threaded cavity of the nut body 101. The first mounting seat 103 is mounted on the nut body 101 via bolts, with its bottom located in the top inlet of the first flow guide channel 107. The first oil nozzle 104 is directly mounted in the top threaded cavity of the first mounting seat 103. The second mounting seat 105 is mounted on the nut body 101 via bolts, with its bottom located in the top inlet of the second flow guide channel 108. The second oil nozzle 106 is directly mounted in the top threaded cavity of the second mounting seat 105. The ejector member is provided on both sides of the nut body 101 to facilitate disassembly of the nut body 101.

[0025] Secondly, the nut body 101 also has a mounting groove 109, which is located below the mounting portion of the nut body 101. The nut body 101 has a T-shaped cross section, and the mounting groove 109 is provided on the bottom end surface of the mounting portion.

[0026] Then, the sealing gasket 110 is detachably connected to the nut body 101 and is located in the installation groove 109. The sealing gasket 110 can be directly installed in the installation groove 109, and when the nut body 101 is installed on the sealing seat of the valve body, the contact surface can be sealed by the sealing gasket 110.

[0027] Finally, the first screw rod 111 is threadedly connected to the nut body 101 and is located on one side of the nut body 101; the second screw rod 112 is threadedly connected to the nut body 101 and is located on the side of the nut body 101 away from the first screw rod 111. A cross-shaped threaded hole is provided on the nut body 101 to facilitate the installation of the first screw rod 111 and the second screw rod 112. The first screw rod 111 and the second screw rod 112 are symmetrically arranged to form a diagonal structure. After the mounting bolts of the nut body 101 are completely removed, the first screw rod 111 and the second screw rod 112 can be rotated in sequence until the bottom of the nut body 101 is pushed out of the installation cavity of the sealing seat, which is convenient for disassembly. During disassembly, the first screw rod 111 and the second screw rod 112 are installed.

[0028] When the use of the present invention facilitates the easy opening and closing of the valve body, during use, when it is found that the opening and closing of the valve is becoming more and more difficult, the first mounting seat 103 and the first oil nozzle 104 can be used to cooperate to deliver lubricant into the first flow guide channel 107, and the lubricant can be transferred to the fitting position of the valve stem and the nut body 101 for lubrication. Furthermore, the second mounting seat 105 and the second oil nozzle 106 can be used to deliver lubricant into the second flow guide channel 108, and the lubricant can be transferred to the fitting position of the valve stem and the nut body 101 for lubrication. Therefore, when it is found that the opening and closing of the valve is becoming more and more difficult during use, the transmission parts can be lubricated, which facilitates the easy opening and closing of the valve body.

[0029] Example 2:

[0030] like Figure 4 As shown, Figure 4 20 is a schematic diagram of the overall structure of the valve stem nut. On the basis of the first embodiment, the utility model provides a valve stem nut, and the auxiliary component further includes a first sealing ring 201 and a second sealing ring 202.

[0031] The first sealing ring 201 is detachably connected to the nut body 101 and is fitted onto the nut body 101. The second sealing ring 202 is detachably connected to the nut body 101 and is fitted onto the nut body 101, located on the side of the nut body 101 close to the first sealing ring 201. A mating groove is provided on the nut body 101 to facilitate the fitting of the first sealing ring 201 and the second sealing ring 202. Both the first sealing ring 201 and the second sealing ring 202 are rubber rings with an O-shaped cross-section.

[0032] In this embodiment, by providing the first sealing ring 201 and the second sealing ring 202 , the sealing performance of the nut body 101 when mounted in cooperation with the valve body sealing seat can be further improved.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein shall be covered by the claims of the present invention.

Claims

1. A valve stem nut, comprising a nut body, wherein the nut body has a stepped mounting hole, the stepped mounting hole passes through the nut body and is located on the nut body, characterized in that: Also included are auxiliary components; The auxiliary assembly includes a first mounting seat, a first oil nozzle, a second mounting seat, a second oil nozzle and an ejection member, wherein the first mounting seat is detachably connected to the nut body and is located on the nut body, the first oil nozzle is threadedly connected to the first mounting seat and is located on the first mounting seat, the second mounting seat is detachably connected to the nut body and is located on a side of the nut body away from the first mounting seat, the second oil nozzle is threadedly connected to the second mounting seat and is located on the second mounting seat, and the ejection members are provided on both sides of the nut body; The nut body further comprises a first flow guide channel and a second flow guide channel. The first flow guide channel is located on a side of the nut body close to the first mounting seat; the second flow guide channel is located on a side of the nut body close to the second mounting seat.

2. The valve stem nut according to claim 1, wherein: The nut body further has a mounting groove, and the mounting groove is located below the mounting portion of the nut body.

3. The valve stem nut according to claim 2, wherein: The auxiliary component further includes a sealing gasket, which is detachably connected to the nut body and is located in the installation groove.

4. The valve stem nut according to claim 1, wherein: The ejection member includes a first screw and a second screw, the first screw is threadedly connected to the nut body and is located on one side of the nut body; the second screw is threadedly connected to the nut body and is located on a side of the nut body away from the first screw.

5. The valve stem nut according to claim 1, wherein: The auxiliary component also includes a first sealing ring and a second sealing ring. The first sealing ring is detachably connected to the nut body and is sleeved on the nut body; the second sealing ring is detachably connected to the nut body and is sleeved on the nut body, and is located on the side of the nut body close to the first sealing ring.

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