Valve rod nut with forward and reverse thread groove structure

Abstract

The utility model relates to the technical field of valve rod nuts, in particular to a forward and reverse thread groove structure valve rod nut which comprises a nut sleeve, a forward thread groove and a reverse thread groove are formed in the nut sleeve, and a first valve rod and a second valve rod are arranged in the two ends of the nut sleeve respectively. The first valve rod and the second valve rod are in threaded connection with the forward thread groove and the reverse thread groove correspondingly, the surface of the nut sleeve is fixedly connected with a handle, the handle comprises a rotating rod and an extending rod, and the rotating rod is inserted into the extending rod. The length of the handle on the nut sleeve can be adjusted, the adjusting mode is more convenient, fast and efficient, a worker can rotate the nut sleeve more easily, and the first valve rod and the second valve rod can get close to each other or get away from each other under the cooperation of a forward thread groove and a reverse thread groove in the nut sleeve; in addition, the physical strength of a worker rotating the nut sleeve can be saved to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve stem nut technical field especially relates to a positive and negative thread groove structure valve stem nut. BACKGROUND

[0002] In the valve technical field, the traditional valve stem nut structure is relatively single, and usually only one-way transmission function can be realized, which is difficult to meet the needs of some complex valve systems for bidirectional transmission and accurate control. For example, in double gate valve or valve with special linkage mechanism, the valve stem nut needs to drive multiple components to move in different directions at the same time to realize efficient and accurate valve operation, and the positive and negative thread groove structure valve stem nut is born. When rotating the positive and negative thread groove structure valve stem nut, the nut is usually rotated by rotating the hand wheel on the nut, but the size of the hand wheel is usually fixed, and the size of the hand wheel cannot be adjusted according to the use demand of the staff, so as to rotate the valve stem nut more conveniently. SUMMARY

[0003] The utility model aims at solving the technical problem put forward in the above background art.

[0004] The utility model adopts the following technical scheme: a positive and negative thread groove structure valve stem nut, including nut cover, the inside of nut cover is provided with positive thread groove and reverse thread groove, both ends of the inside of nut cover are provided with no.

[0005] Preferably, the lock assembly includes a sleeve, the inside of the sleeve is slidably connected with a bolt, the surface of the bolt is fixedly connected with a pull rod, one end of the pull rod is fixedly connected with a handle, the surface of the pull rod is sleeved with a spring, and the bolt is inserted into the slot. Here, the extension rod and the rotating rod can be fixed, and the length of the rotating rod can be adjusted to meet the use demand of different operators, and the extension rod length adjustment is more convenient and efficient.

[0006] Preferably, the number of rotating rods is two groups, and the two groups of rotating rods are symmetrically distributed on both sides of the middle part of the surface of the nut cover. Here, the convenience of rotating the nut cover is further improved.

[0007] Preferably, the surface of the handle is fixedly connected with rubber bumps, and the rubber bumps are evenly distributed on the surface of the handle. Here, the comfort of the finger contacting the handle can be improved by the rubber bumps, and the phenomenon of slipping can be avoided.

[0008] Preferably, the number of the slots is seven groups, and the seven groups of the slots are equidistantly distributed on the surface of the rotating rod.

[0009] Preferably, the surface of the extension rod is sleeved with a handle sleeve.

[0010] Preferably, the inside of the slot is fixedly connected with a magnet, the magnet is magnetically connected with the plug, the surface of the rotating rod is fixedly connected with a guide rod, and the inside surface of the extension rod is provided with a guide groove, and the guide rod is clamped in the inside of the guide groove.

[0011] Compared with the prior art, the utility model has the advantages and positive effects that:

[0012] 1、The utility model discloses a length adjusting handle of nut sleeve, and the length of the handle can be adjusted according to the actual situation of the staff, so that the staff can rotate the nut sleeve more conveniently when the length of the handle is adjusted to the appropriate length, the plug is inserted into the inside of the slot under the elastic force of the spring, the length adjustment of the handle of the nut sleeve is realized, the adjustment mode is more convenient and efficient, the staff can rotate the nut sleeve more easily, the first valve rod and the second valve rod are close to or away from each other under the cooperation of the forward screw groove and the reverse screw groove in the nut sleeve, and the staff's physical strength can be saved to some extent when rotating the nut sleeve.

[0013] 2、The utility model discloses a magnet, a guide rod and a guide groove structure, when the extension rod is moved, the guide rod on the rotating rod slides in the guide groove and guides and limits the extension rod, so that the extension rod does not rotate during movement, when the plug is inserted into the inside of the slot, the plug and the magnet in the slot are magnetically attracted together, the stability of the plug to the extension rod can be further strengthened, the extension rod does not rotate when the position of the extension rod is adjusted, the plug can be quickly aligned with the slot, and the convenience of the plug inserted into the slot is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The utility model provides a schematic diagram of valve stem nut of positive and reverse thread groove structure;

[0015] Figure 2 The utility model provides a sectional view of valve stem nut of positive and reverse thread groove structure;

[0016] Figure 3 The utility model provides a exploded view of valve stem nut of positive and reverse thread groove structure;

[0017] Figure 4 The utility model provides a partial exploded view of valve stem nut of positive and reverse thread groove structure.

[0018] Legend:

[0019] 1, nut cover;2, valve stem no. 1;3, valve stem no. 2;4, rotating rod;5, extension rod;6, handle cover;7, sleeve;8, guide rod;9, slot;10, magnet;11, bolt;12, pull rod;13, spring;14, handle;15, rubber bump;16, guide groove;17, positive thread groove;18, reverse thread groove. Specific embodiments

[0020] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the drawings and examples. It should be noted that the examples and features in the examples of the present application can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model can also be implemented in other ways different from the description herein, therefore, the present utility model is not limited to the specific examples disclosed in the following description.

[0022] Example one

[0023] Please refer to Figures 1-4The utility model provides a technical scheme: a valve rod nut with positive and reverse thread grooves 18 structure, including the nut cover 1, the inside of nut cover 1 is provided with positive thread groove 17 and reverse thread groove 18, and the both ends of nut cover 1 are provided with no. 1 valve rod 2 and no. 2 valve rod 3 respectively, no. 1 valve rod 2 and no. 2 valve rod 3 are connected with positive thread groove 17 and reverse thread groove 18 respectively, the surface of nut cover 1 is fixedly connected with handle, handle includes rotating rod 4 and extension rod 5, rotating rod 4 is inserted in the inside of extension rod 5, the surface of rotating rod 4 is provided with slot 9, and the surface of extension rod 5 is fixedly connected with lock catch assembly, lock catch assembly includes sleeve 7, the inside of sleeve 7 is slidably connected with bolt 11, the surface of bolt 11 is fixedly connected with pull rod 12, one end of pull rod 12 is fixedly connected with handle 14, the surface of pull rod 12 is sleeved with spring 13, bolt 11 is inserted in the inside of slot 9, here can fix extension rod 5 with rotating rod 4, also be convenient for the length of rotating rod 4 is adjusted to satisfy the use demand of different operating personnel, and the length adjustment mode of extension rod 5 is more simple and efficient, the number of rotating rod 4 is two groups, and two groups of rotating rod 4 are distributed symmetrically in the middle two sides of the surface of nut cover 1, here further improve the convenience of the rotation of nut cover 1, the surface of handle 14 is fixedly connected with rubber boss 15, and rubber boss 15 is evenly distributed on the surface of handle 14, here can improve the comfort degree when finger and handle 14 contact through rubber boss 15, avoid the phenomenon of skidding, the number of slot 9 is seven groups, and seven groups of slot 9 are equidistantly distributed on the surface of rotating rod 4, here can directional adjustment is carried out to the position of extension rod 5 on rotating rod 4 according to the use needs.

[0024] Example two

[0025] Please refer to Figures 3-4 The surface of extension rod 5 is sleeved with handle sleeve 6, here can protect the hand of user, avoid the palm inside directly with extension rod 5 contact, avoid the friction force caused when rotating extension rod 5 produces hand inadaptation, the inside of slot 9 is fixedly connected with magnet 10, magnet 10 is magnetically connected with bolt 11, the surface of rotating rod 4 is fixedly connected with guide rod 8, the inside surface of extension rod 5 is provided with guide groove 16, guide rod 8 is clamped in the inside of guide groove 16, here can further strengthen the stability of bolt 11 to extension rod 5 fixed, can also avoid extension rod 5 to rotate when adjusting the position of extension rod 5, so that bolt 11 can be quickly inserted slot 9 alignment, further improve the convenience of bolt 11 insertion slot 9 in.

[0026] Working principle: in the use process, when rotating the nut sleeve 1, the worker can adjust the length of the handle on the nut sleeve 1 according to the situation, so that it can be more convenient when rotating the nut sleeve 1, first pull the handle 14, the handle 14 drives the pull rod 12 and the bolt 11 to slide in the inside of the sleeve 7 and extrude the spring 13, then hold the extension rod 5 and move, change the corresponding position of the bolt 11 and the slot 9 on the rotating rod 4, when the handle is adjusted to the appropriate length, release the handle 14, the bolt 11 is inserted into the inside of the slot 9 under the elastic force of the spring 13, then hold and rotate the extension rod 5, make the palm and the handle sleeve 6 on the extension rod 5 stick together, the extension rod 5 drives the nut sleeve 1 to rotate, the nut sleeve 1 rotates at the same time under the cooperation of the forward thread groove 17 and the reverse thread groove 18, so that the first valve rod 2 and the second valve rod 3 are away from or close to each other to control the opening and closing of the double gate valve, which realizes the length adjustment of the handle on the nut sleeve 1, not only the adjustment method is more convenient and efficient, but also the worker can rotate the nut sleeve 1 more easily, the forward thread groove 17 and the reverse thread groove 18 in the nut sleeve 1, the first valve rod 2 and the second valve rod 3 are close to or away from each other, and to a certain extent, the physical strength of the worker when rotating the nut sleeve 1 can be saved, when moving the extension rod 5, the guide rod 8 on the rotating rod 4 slides in the guide groove 16, which guides and limits the extension rod 5, so that it does not rotate during movement, when the bolt 11 is inserted into the inside of the slot 9, the bolt 11 and the magnet 10 in the slot 9 are magnetically attracted together, which can further strengthen the stability of the bolt 11 to the extension rod 5, and also can avoid the rotation of the extension rod 5 when adjusting the position of the extension rod 5, so that the bolt 11 can be quickly aligned with the slot 9, further improving the convenience of inserting the bolt 11 into the slot 9.

[0027] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technology content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application still belongs to the protection scope of the present application.

Claims

1. A valve stem nut of positive and reverse thread groove structure comprising a nut sleeve (1) characterized in that: The interior of the nut sleeve (1) is provided with a forward thread groove (17) and a reverse thread groove (18), both ends of the nut sleeve (1) are respectively provided with a first valve rod (2) and a second valve rod (3), the first valve rod (2) and the second valve rod (3) are respectively screwed with the forward thread groove (17) and the reverse thread groove (18), the surface of the nut sleeve (1) is fixedly connected with a handle, the handle includes a rotating rod (4) and an extension rod (5), the rotating rod (4) is inserted in the interior of the extension rod (5), the surface of the rotating rod (4) is provided with a slot (9), and the surface of the extension rod (5) is fixedly connected with a lock assembly.

2. The reverse-shoulder valve stem nut of claim 1, wherein: The lock assembly includes a sleeve (7), the interior of the sleeve (7) is slidably connected with a bolt (11), the surface of the bolt (11) is fixedly connected with a pull rod (12), one end of the pull rod (12) is fixedly connected with a handle (14), the surface of the pull rod (12) is sleeved with a spring (13), and the bolt (11) is inserted in the slot (9).

3. The reverse-shoulder valve stem nut of claim 1, wherein: The number of the rotating rod (4) is two groups, and the two groups of rotating rods (4) are symmetrically distributed on both sides of the middle part of the surface of the nut sleeve (1).

4. The reverse-shoulder valve stem nut of claim 2, wherein: The surface of the handle (14) is fixedly connected with a rubber bump (15), and the rubber bump (15) is uniformly distributed on the surface of the handle (14).

5. The reverse-shoulder valve stem nut of claim 1, wherein: The number of the slot (9) is seven groups, and the seven groups of slots (9) are equidistantly distributed on the surface of the rotating rod (4).

6. The reverse-threaded-groove valve stem nut of claim 1, wherein: The surface of the extension rod (5) is sleeved with a handle sleeve (6).

7. The reverse-threaded-groove valve stem nut of claim 1, wherein: The interior of the slot (9) is fixedly connected with a magnet (10), the magnet (10) is magnetically connected with the bolt (11), the surface of the rotating rod (4) is fixedly connected with a guide rod (8), the interior surface of the extension rod (5) is provided with a guide groove (16), and the guide rod (8) is clamped in the interior of the guide groove (16).

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