Valve rod structure applied to corrugated pipe stop valve

Abstract

According to the valve rod structure applied to the corrugated pipe stop valve, the valve rod is arranged to be of a sectional structure, the corrugated pipe connecting base capable of moving and adjusting the position is arranged on the main valve rod, the relative position between a corrugated pipe and a valve body can be adjusted according to actual requirements, and therefore accurate control over the length of the corrugated pipe is achieved. By means of the design, the flexibility and adaptability of the corrugated pipe stop valve are improved, and the sealing performance and stability of the valve are enhanced. In addition, the valve is more convenient to maintain and replace due to the sectional valve rod structure, and the maintenance cost and time are reduced. And the positioning piece is arranged on the corrugated pipe connecting seat, so that the stability of the corrugated pipe connecting seat on the main valve rod is ensured, and the problem of failure of the valve caused by movement of the corrugated pipe is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely relates to a valve rod structure for corrugated pipe stop valve. BACKGROUND

[0002] In the prior art, the valve rod of the corrugated pipe stop valve is usually designed in one piece. Although this design is simple in structure, it has many inconveniences in actual use. For example, when the length of the corrugated pipe changes due to long-term use or environmental factors, the one-piece valve rod cannot flexibly adjust the relative position between the corrugated pipe and the valve body, thereby affecting the sealing performance and stability of the valve. In addition, the one-piece valve rod is also relatively cumbersome to maintain and replace, increasing the maintenance cost and time. SUMMARY

[0003] Therefore, the utility model provides a valve rod structure for corrugated pipe stop valve.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A valve rod structure for corrugated pipe stop valve, comprising a main valve rod and a secondary valve rod, the main valve rod and the secondary valve rod are coaxially arranged, the main valve rod has an upper connecting part, a lower connecting part and a body part, a corrugated pipe connecting seat is arranged on the body part, the corrugated pipe connecting seat is movably arranged on the body part, a positioning member is arranged on the corrugated pipe connecting seat, and the positioning member limits the position of the corrugated pipe connecting seat on the body part.

[0006] Preferably, at least three adjusting grooves are formed on the surface of the body part along the length direction of the body part, the corrugated pipe connecting seat is annularly arranged on the body part, adjusting holes corresponding to the positions of the adjusting grooves are formed on the corrugated pipe connecting seat, the positioning member is arranged in the adjusting hole, one end of the positioning member protrudes out of the adjusting hole and abuts against the groove wall of the adjusting groove to limit the position of the corrugated pipe connecting seat on the body part.

[0007] Preferably, the adjusting hole has a large-diameter part and a small-diameter part, the cross-sectional shape of the positioning member is T-shaped, the positioning member has a threaded fastening part and a screwing part, the threaded fastening part and the screwing part are arranged in the small-diameter part and the large-diameter part respectively, and one end of the threaded fastening part protrudes out of the adjusting hole and abuts against the groove wall of the adjusting groove.

[0008] Preferably, a rubber pad is arranged on one end of the threaded fastening part protruding out of the adjusting hole, and a cross groove is arranged on the end face of the screwing part away from the threaded fastening part.

[0009] Preferably, the body part is provided with a corrugated pipe fixing seat on one side close to the lower connecting part, the corrugated pipe fixing seat is welded and fixed with the body part, and a corrugated pipe is arranged between the corrugated pipe fixing seat and the corrugated pipe connecting seat.

[0010] Preferably, a connecting screw hole is formed at the top end of the upper connecting part, and one end of the auxiliary valve rod extends into the connecting screw hole and is threadedly connected with the upper connecting part.

[0011] The utility model discloses the beneficial effect lies in: through setting up the valve rod as sectional structure, and setting up the corrugated pipe connecting seat of movable adjustment position on the main valve rod, can adjust the relative position between corrugated pipe and valve body according to actual demand to realize the accurate control of the length of corrugated pipe. This design not only improves the flexibility and adaptability of corrugated pipe stop valve, but also enhances the sealing performance and stability of the valve. In addition, the sectional valve rod structure makes the maintenance and replacement of the valve more convenient, reduces the maintenance cost and time. The positioning piece arranged on the corrugated pipe connecting seat ensures the stability of the corrugated pipe connecting seat on the main valve rod, and avoids the valve failure problem caused by the movement of the corrugated pipe. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only some embodiments of the present utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0013] ATTACHMENT Figure 1 It is a structural schematic diagram of the present utility model;

[0014] ATTACHMENT Figure 2 It is an attachment Figure 1 It is an enlarged view of A in the middle. DETAILED DESCRIPTION

[0015] The technical scheme in the embodiments of the present utility model will be described clearly and completely in combination with the drawings in the embodiments of the present utility model, obviously, the described embodiments are only some embodiments of the present utility model, not all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present utility model.

[0016] The present utility model will be further described in combination with the drawings in the specification.

[0017] The present utility model provides the following technical scheme:

[0018] As shown in the accompanying Figures 1-2 The utility model discloses a valve rod structure applied to corrugated pipe stop valve, including main valve rod 1 and vice valve rod 2, coaxial arrangement between main valve rod 1 and vice valve rod 2, main valve rod 1 has upper connecting portion 3, lower connecting portion 4 and body portion 5, set up corrugated pipe connecting seat 6 on body portion 5, corrugated pipe connecting seat 6 is movably arranged on body portion 5, set up positioning member 7 on corrugated pipe connecting seat 6, positioning member 7 is limited to the position of corrugated pipe connecting seat 6 on body portion 5. Specifically, in the design, by setting up the valve rod as sectional structure, and set up the corrugated pipe connecting seat 6 of movable adjustment position on main valve rod 1, can adjust the relative position between corrugated pipe and valve body according to actual demand, to realize the accurate control of the length of corrugated pipe. This design not only improves the flexibility and adaptability of corrugated pipe stop valve, also enhances the sealing performance and stability of valve. In addition, the sectional valve rod structure makes the maintenance and replacement of valve more convenient, reduces the maintenance cost and time. The positioning member 7 set up on the corrugated pipe connecting seat 6 ensures the stability of the corrugated pipe connecting seat 6 on the main valve rod 1, avoids the valve failure problem caused by the movement of corrugated pipe.

[0019] Further, the body portion 5 surface is provided with at least three adjusting grooves 8 arranged along the length direction of the body portion 5, the corrugated pipe connecting seat 6 is annularly arranged on the body portion 5, the corrugated pipe connecting seat 6 is provided with adjusting holes 9 corresponding to the positions of the adjusting grooves 8, the positioning member 7 is arranged in the adjusting hole 9, one end of the positioning member 7 extends out of the adjusting hole 9 and abuts against the groove wall of the adjusting groove 8 to limit the position of the corrugated pipe connecting seat 6 on the body portion 5. Specifically, in this embodiment, the design of the adjusting groove 8 and the adjusting hole 9 allows the corrugated pipe connecting seat 6 to be finely adjusted on the body portion 5, ensuring that the connection between the corrugated pipe and the valve body is more secure. By rotating the positioning member 7, it can be moved along the adjusting groove 8 to accurately adjust the position of the corrugated pipe connecting seat 6. This design not only improves the adjustment accuracy of the corrugated pipe stop valve, but also makes the installation and debugging process of the valve more convenient. At the same time, the cooperation of the adjusting groove 8 and the adjusting hole 9 enhances the stability of the corrugated pipe connecting seat 6 on the main valve rod 1, further improves the reliability and service life of the valve.

[0020] Further, the adjusting hole 9 has a large diameter part 10 and a small diameter part 11, the positioning piece 7 is provided in a T-shaped cross section, the positioning piece 7 has a threaded fastening part 12 and a rotating part 13, the threaded fastening part 12 and the rotating part 13 are respectively arranged in the small diameter part 11 and the large diameter part 10, and one end of the threaded fastening part 12 protrudes out of the adjusting hole 9 and abuts against the groove wall of the adjusting groove 8. Specifically, in the embodiment, the T-shaped positioning piece 7 is designed to be firmly installed in the adjusting hole 9 and not easy to loosen. The threaded fastening part 12 is in close contact with the groove wall of the adjusting groove 8, and by rotating the rotating part 13, the position of the positioning piece 7 can be conveniently adjusted, and thus the position of the corrugated pipe connecting seat 6 is accurately controlled. Such a structure not only improves the adjusting efficiency and stability of the corrugated pipe stop valve, but also effectively avoids the problem of valve failure caused by loosening of the positioning piece 7. Meanwhile, the small diameter part 11 and the large diameter part 10 are arranged to enable the positioning piece 7 to be automatically positioned during installation, thereby simplifying the installation steps and improving the work efficiency.

[0021] Further, a rubber pad 14 is arranged on one end of the threaded fastening part 12 protruding out of the adjusting hole 9, and a cross groove 15 is arranged on the side end face of the rotating part 13 away from the threaded fastening part 12. Specifically, in the embodiment, the arrangement of the rubber pad 14 increases the friction between the threaded fastening part 12 and the groove wall of the adjusting groove 8, improves the stability of the positioning piece 7, and avoids the problem of loosening of the positioning piece 7 caused by vibration or external force. Meanwhile, the rubber pad 14 also has a certain elasticity and can absorb and relieve the vibration and impact force generated during the operation of the valve to a certain extent, thereby further protecting the stability and service life of the valve. The design of the cross groove 15 facilitates the rotation operation of the rotating part 13 by using tools, so that the position of the positioning piece 7 is more convenient and quick to adjust. In addition, the shape and size of the cross groove 15 are moderate, which can ensure the stability and accuracy of the tools and avoid damage to the rotating part 13 by the tools, thereby improving the overall performance and reliability of the valve.

[0022] Further, the body part 5 is provided with a corrugated pipe fixing seat 16 on one side close to the lower connecting part 4, the corrugated pipe fixing seat 16 is welded and fixed between the body part 5, and the corrugated pipe 17 is arranged between the corrugated pipe fixing seat 16 and the corrugated pipe connecting seat 6, both ends of the corrugated pipe 17 are connected with the corrugated pipe fixing seat 16 and the corrugated pipe connecting seat 6 respectively. Specifically, in the embodiment, the corrugated pipe fixing seat 16 is designed to stably support the corrugated pipe 17, and ensure the stability and reliability of the corrugated pipe 17 during operation. By connecting both ends of the corrugated pipe 17 with the corrugated pipe fixing seat 16 and the corrugated pipe connecting seat 6 respectively, the effective fixation of the corrugated pipe 17 on the valve stem structure is realized. This connection mode not only simplifies the structure of the valve, but also improves the installation efficiency and accuracy of the corrugated pipe 17. At the same time, the welding and fixing mode between the corrugated pipe fixing seat 16 and the body part 5 ensures the overall strength and stability of the valve stem structure, and avoids the problem of valve failure caused by the movement of the corrugated pipe 17.

[0023] Further, the upper connecting part 3 is provided with a connecting screw hole 18 at the top end, and one end of the auxiliary valve stem 2 is inserted into the connecting screw hole 18 and threadedly connected with the upper connecting part 3. Specifically, in the embodiment, the connecting screw hole 18 at the top end of the upper connecting part 3 is designed to provide a convenient interface for the installation of the auxiliary valve stem 2. One end of the auxiliary valve stem 2 is inserted into the connecting screw hole 18 through the threaded connection mode, and is tightly fixed with the upper connecting part 3. This connection mode not only has a simple structure, but also is firm and reliable, and can withstand a large working pressure and torque. By adjusting the threaded connection depth of the auxiliary valve stem 2 and the upper connecting part 3, the overall length of the valve stem can be adjusted, so as to meet the use requirements under different working conditions. At the same time, the threaded connection also has a self-locking function, which can effectively prevent the auxiliary valve stem 2 from loosening and falling off during operation, and improve the stability and safety of the valve. This design not only enhances the flexibility and adaptability of the valve stem structure, but also provides great convenience for the installation and maintenance of the valve.

[0024] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A valve stem structure applied to a bellows gate valve, characterized in that: It includes a main valve stem and a secondary valve stem, which are coaxially arranged. The main valve stem has an upper connecting part, a lower connecting part, and a body part. A bellows connecting seat is provided on the body part. The bellows connecting seat is movably arranged on the body part. A positioning element is provided on the bellows connecting seat to limit the position of the bellows connecting seat on the body part.

2. The valve stem structure applied to a bellows gate valve according to claim 1, characterized in that: At least three adjustment grooves are provided on the surface of the main body along the length of the main body. The bellows connector is sleeved on the main body in an annular structure. The bellows connector has adjustment holes corresponding to the positions of the adjustment grooves. The positioning member is disposed in the adjustment hole. One end of the positioning member extends out of the adjustment hole and abuts against the groove wall of the adjustment groove to limit the position of the bellows connector on the main body.

3. The valve stem structure applied to a bellows gate valve according to claim 2, characterized in that: The adjusting hole has a large diameter portion and a small diameter portion. The positioning member has a T-shaped cross-section and a threaded fastening portion and a tightening portion. The threaded fastening portion and the tightening portion are respectively located in the small diameter portion and the large diameter portion. One end of the threaded fastening portion extends out of the adjusting hole and abuts against the groove wall of the adjusting groove.

4. The valve stem structure applied to a bellows gate valve according to claim 3, characterized in that: A rubber pad is provided on one end of the threaded fastening part that extends out of the adjustment hole, and a cross groove is provided on the side end face of the tightening part away from the threaded fastening part.

5. The valve stem structure applied to a bellows gate valve according to claim 1, characterized in that: A bellows fixing seat is provided on the side of the main body near the lower connecting part. The bellows fixing seat is welded and fixed to the main body. A bellows is provided between the bellows fixing seat and the bellows connecting seat. The two ends of the bellows are respectively connected to the bellows fixing seat and the bellows connecting seat.

6. The valve stem structure applied to a bellows gate valve according to claim 1, characterized in that: A connecting screw hole is provided at the top of the upper connecting part, and one end of the auxiliary valve stem extends into the connecting screw hole and is threadedly connected to the upper connecting part.

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