CN220523329U

CN220523329U - Valve rod with protective sleeve

Info

Publication number: CN220523329U
Application number: CN202322177311.2U
Authority: CN
Inventors: 殷晓辉; 殷季轩
Original assignee: Nantong Libang Machinery Co ltd
Current assignee: Nantong Libang Machinery Co ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-02-23
Anticipated expiration: 2033-08-11

Abstract

The utility model discloses a valve rod with a protective sleeve, which comprises a threaded section for connecting a valve plate, wherein the threaded section is integrally connected with a valve cover section through a cylindrical section, the valve cover section extends upwards to form an exposed section, the exposed section is sleeved with the protective sleeve, and the top of the exposed section is integrally connected with a hexagonal fixing section for fixing a hand wheel; the protective sleeve is limited between the upper check ring and the lower check ring, the lower check ring is fixed at the joint of the valve cover section and the exposed section, and the upper check ring is fixed at the joint of the exposed section and the hexagonal fixed section. This novel utilization protective sheath suit realizes the valve rod protection to exposing at the section that exposes of valve rod to, the protective sheath of suit is at upper and lower both ends all do the enhancement and seals the setting, effectively weakens the erosion of external environment to the valve rod, and then solves the problem that exposes the valve rod and rust easily and be stained with the dust easily.

Description

Valve rod with protective sleeve

Technical Field

The utility model relates to a valve rod, in particular to a valve rod with a protective sleeve.

Background

The rising stem gate valve is widely applied to a conveying pipeline system and is often used outdoors or in factory buildings. The valve rod of the open rod type gate valve can extend out of the outer side of the valve body for a large section, but due to the use requirements of air supply, water supply and the like, the open rod type gate valve in a pipeline system is normally in a normally open state, the exposed valve rod is corroded by the external environment, rust is easy to generate, dust is easy to be stained, and then the valve is inflexible to open or close, and even jamming can be caused.

Disclosure of Invention

In order to solve the defects of the technology, the utility model provides a valve rod with a protective sleeve.

In order to solve the technical problems, the utility model adopts the following technical scheme: the valve rod with the protective sleeve comprises a threaded section used for being connected with a valve plate, wherein the threaded section is integrally connected with a valve cover section through a cylindrical section, the valve cover section extends upwards to form an exposed section, the protective sleeve is sleeved on the exposed section, and the top of the exposed section is integrally connected with a hexagonal fixing section used for fixing a hand wheel;

the protective sleeve is limited between the upper check ring and the lower check ring, the lower check ring is fixed at the joint of the valve cover section and the exposed section, and the upper check ring is fixed at the joint of the exposed section and the hexagonal fixed section.

Further, the surface of the valve cover section is fixedly surrounded by sealing rings for sealing the valve cover, and a plurality of groups of sealing rings are arranged at intervals.

Further, the lower check ring is fixedly welded at the joint of the valve cover section and the exposed section.

Further, the upper retaining ring is sleeved at the joint of the exposed section and the hexagonal fixing section and is fixedly locked through a pin.

Further, an aligned fixing hole is formed in the side wall of the top end of the exposed section of the upper retainer ring, and the fixing hole is used for fixing and locking the pin.

Further, a circle of grooves are respectively formed in the surfaces of the upper retainer ring and the lower retainer ring, which are in contact with the protective sleeve, the top sealing plug of the protective sleeve is arranged in the groove of the upper retainer ring, and the bottom sealing plug of the protective sleeve is arranged in the groove of the lower retainer ring.

Further, the rubber sleeves are fixed at the top opening and the bottom opening of the protective sleeve.

Further, a transparent viewing window is arranged on the protective sleeve.

The utility model discloses a valve rod with a protective sleeve, which is sleeved on an exposed section of the valve rod to protect the exposed valve rod, and the sleeved protective sleeve is arranged in a reinforced sealing way at the upper end and the lower end, so that the corrosion of the external environment to the valve rod is effectively weakened, and the problems that the exposed valve rod is easy to rust and easy to be stained with dust are solved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

FIG. 2 is a schematic diagram of the overall structure of the valve stem body of the present utility model.

Fig. 3 is a schematic structural view of the protective sleeve of the present utility model.

In the figure: 1. a threaded section; 2. a cylindrical section; 3. a valve cover section; 4. an exposed section; 5. a lower retainer ring; 6. a protective sleeve; 7. an upper retainer ring; 8. a hexagonal fixing section; 9. a pin; 10. a groove; 11. a viewing window; 12. a seal ring; 13. a rubber sleeve; 14. and a fixing hole.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description.

The embodiment discloses a valve rod with protective sheath, is equipped with the protective sheath on the valve rod that exposes, realizes the protection to weaken the erosion of external environment to the valve rod. First, as shown in fig. 1, the whole structure of the valve rod with the protection sleeve according to the present embodiment is schematically shown.

The valve rod comprises a threaded section 1, and the threaded section 1 is used for being connected with a valve plate of a gate valve. The screw thread section 1 upwards is connected with the valve gap section 3 through cylindricality section 2, and valve gap section 3 is located the valve gap department of gate valve to at the fixed sealing washer 12 that is used for sealed valve gap that surrounds of valve gap section 3 surface mounting, in order to ensure sealed effect, the sealing washer 12 interval of valve gap section 3 is provided with the multiunit.

As shown in fig. 2, the part of the valve cover section 3 extending upwards is an exposed section 4, a protective sleeve 6 is sleeved on the exposed section 4, and the protective sleeve 6 protects the exposed section 4.

The top of the exposed section 4 is integrally connected with a hexagonal fixing section 8, and the hexagonal fixing section 8 is used for fixing a hand wheel.

Preferably, the sheath 6 is limited between the upper collar 7 and the lower collar 5 in order to prevent the sheath 6 from being detached from the exposed section and to achieve effective protection. Wherein, the lower retainer ring 5 is fixedly welded at the joint of the valve cover section 3 and the exposed section 4, the upper retainer ring 7 is fixedly sleeved at the joint of the exposed section 4 and the hexagonal fixed section 8, and a circle of groove 10 is respectively arranged on the surfaces of the retainer ring 7 and the lower retainer ring 5, which are contacted with the protective sleeve 6, and the top opening and the bottom opening of the protective sleeve 6 are both fixedly provided with rubber sleeves 13. Thus, the top gum cover sealing plug of the protecting sleeve 6 is put into the groove of the upper retainer ring 7, and the bottom gum cover sealing plug of the protecting sleeve 6 is put into the groove of the lower retainer ring 5. Therefore, the rubber sleeve 13 designed by the sealing ring is matched with the groove 10, so that gaps at the top and the bottom of the protective sleeve are small enough, and the protective effect of the protective sleeve on the exposed section 4 is effectively ensured.

The lower check ring 5 is welded on the valve rod body integrally, and the upper check ring 6 is fixedly locked by the pin 9 after being sleeved at the joint of the exposed section 4 and the hexagonal fixing section 8. Correspondingly, the upper retainer ring 7 and the top side wall of the exposed section 4 are provided with aligned fixing holes 14, and the fixing holes 14 are used for fixing and locking the pins 9. Therefore, after the protective sleeve 6 is sleeved on the exposed section 4, the rubber sleeve sealing plug at the bottom is firstly sleeved in the groove of the lower check ring 5, then the upper check ring 7 is sleeved, the rubber sleeve sealing plug at the top is enabled to be sleeved in the groove of the upper check ring 7, and then the pin is locked in by utilizing the aligned fixing holes, so that the fixing and locking of the upper check ring 7 are realized. In order to facilitate alignment of the fixing holes, so that the pin can smoothly fix the upper retainer ring 7 at the top of the exposed section, a guide bar and guide groove structure can be arranged at the corresponding positions of the upper retainer ring 7 and the exposed section 4.

After the upper check ring 7 is fixed, the hand wheel of the gate valve is locked and installed by the hexagonal fixing section 8, and the upper check ring 7 is propped against the lower part of the hand wheel.

Furthermore, a transparent viewing window 11 is provided on the protective sleeve 6 to facilitate viewing of the exposed section of the valve stem in the protective sleeve.

Therefore, for the valve rod with the protective sleeve disclosed by the utility model, the protective sleeve is sleeved at the exposed section of the valve rod, the top and the bottom of the protective sleeve are respectively sealed in the grooves of the check ring and are limited and tightly pressed up and down by the check ring, so that the exposed section protected by the protective sleeve is difficult to contact with the outside, the corrosion of the external environment on the valve rod is effectively weakened, the problems that the exposed valve rod is easy to rust and easy to be stained with dust are solved, and the normal use of the valve rod is ensured.

The above embodiments are not intended to limit the present utility model, and the present utility model is not limited to the above examples, but is also intended to be limited to the following claims.

Claims

1. Valve rod with protective sheath, including screw thread section (1) that are used for connecting the valve plate, its characterized in that: the threaded section (1) is integrally connected with the valve cover section (3) through the cylindrical section (2), the valve cover section (3) extends upwards to form an exposed section (4), a protective sleeve (6) is sleeved on the exposed section (4), and the top of the exposed section (4) is integrally connected with a hexagonal fixing section (8) for fixing a hand wheel;

the protective sleeve (6) is limited between the upper check ring (7) and the lower check ring (5), the lower check ring (5) is fixed at the joint of the valve cover section (3) and the exposed section (4), and the upper check ring (7) is fixed at the joint of the exposed section (4) and the hexagonal fixed section (8).

2. The valve stem with protective sleeve of claim 1, wherein: the surface of the valve cover section (3) is fixedly surrounded by sealing rings (12) for sealing the valve cover, and a plurality of groups of sealing rings (12) are arranged at intervals.

3. The valve stem with protective sleeve of claim 1, wherein: the lower check ring is fixedly welded at the joint of the valve cover section (3) and the exposed section (4).

4. The valve stem with protective sleeve of claim 1, wherein: the upper check ring (7) is sleeved at the joint of the exposed section (4) and the hexagonal fixing section (8) and is fixedly locked through the pin (9).

5. The valve stem with protective sleeve according to claim 4, wherein: and the upper check ring (7) and the top side wall of the exposed section (4) are provided with aligned fixing holes (14), and the fixing holes (14) are used for fixing and locking the pins (9).

6. A valve stem with protective sleeve according to claim 3 or 4, wherein: the surface of the upper check ring (7) and the surface of the lower check ring (5) contacting the protective sleeve (6) are respectively provided with a circle of groove (10), the top sealing plug of the protective sleeve (6) is arranged in the groove of the upper check ring (7), and the bottom sealing plug of the protective sleeve (6) is arranged in the groove of the lower check ring (5).

7. The valve stem with protective sleeve according to claim 6, wherein: and rubber sleeves (13) are fixed at the top opening and the bottom opening of the protective sleeve (6).

8. The valve stem with protective sleeve of claim 1, wherein: a transparent observation window (11) is arranged on the protective sleeve (6).