Limiting and locking integrated structure of small-caliber floating ball valve handle

Abstract

The utility model discloses a small-caliber floating ball valve handle limiting and locking integrated structure which comprises a pressing plate, a valve rod, a valve body, a first limiting pin, a second limiting pin, a padlock and a handle, the valve rod is installed in the center of the upper portion of the valve body, the pressing plate is fixedly connected to the position, located on the outer ring of the valve rod, of the upper end of the valve body, and the handle is fixedly connected to the top end of the valve rod. A handle lock hole is formed in the left end of the handle, a padlock is arranged in the handle lock hole, and a limiting table is integrally arranged on the lower portion of the right side of the handle. The novel structure is adopted, the pressing plate with the lock hole, the first limiting pin and the second limiting pin are arranged at the top end of the valve body, the lock hole is matched with the lock hole of the handle, the opening state and the closing state of the valve can be locked, meanwhile, the first limiting pin and the second limiting pin are matched with the limiting table, and therefore the safety of the valve is improved. The valve opening and closing angle positioning device is simple and reasonable in structure, good in locking and positioning effect, low in manufacturing cost and high in practicability.

Description

Technical Field

[0001] The utility model relates to a small-caliber floating ball valve, in particular to a small-caliber floating ball valve handle limiting and locking integrated structure. Background Art

[0002] Floating ball valves have a simple structure and excellent sealing performance, and are widely used in the oil and gas industries. The design of floating ball valves, especially small-diameter floating ball valves, requires a switch limit and locking mechanism. To this end, we propose a small-diameter floating ball valve with an integrated handle limit and lock structure. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a small-diameter floating ball valve handle limit and locking integrated structure, which solves the problem that the design of existing floating ball valves, especially small-diameter floating ball valves, requires switch limit and locking structures.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: an integrated structure of a handle limit and lock for a small-diameter floating ball valve, comprising a pressure plate, a valve stem, a valve body, a limit pin 1, a limit pin 2, a padlock and a handle, a valve stem is installed at the center of the upper part of the valve body, the upper end of the valve body is located at the outer ring of the valve stem and is fixedly connected to a pressure plate, the top of the valve stem is fixedly connected to a handle, a handle lock hole is opened at the left end of the handle, a padlock is provided in the handle lock hole, a limit platform is integrated at the lower right side of the handle, and the upper end of the valve body is fixedly connected to limit pin 1 and limit pin 2.

[0005] Based on the above solution, the pressure plate is provided with two through holes that match the handle lock holes, and the two through holes are distributed at a 90-degree angle.

[0006] Based on the above solution, the limiting pin 1 and the limiting pin 2 are respectively located at opposite ends of the two through holes on the pressure plate.

[0007] Based on the above solution, the handle is fixedly connected to the top of the valve stem by a bolt, and a spring washer and a flat washer are installed between the bolt and the valve stem from top to bottom.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: the handle limit and locking integrated structure of a small-caliber floating ball valve adopts a new structure, and a pressure plate with a lock hole and a limit pin 1 and a limit pin 2 are set at the top of the valve body. The lock hole cooperates with the handle lock hole to lock the open and closed states of the valve. At the same time, the limit pin 1 and the limit pin 2 cooperate with the limit platform to accurately position the opening and closing angles of the valve. The present invention has a simple and reasonable structure, good locking and positioning effects, low production cost, and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a structural diagram of the small-caliber floating ball valve handle limit and locking integrated structure of the utility model;

[0010] Figure 2 for Figure 1 Top view of .

[0011] The numbers in the figure are: 1-pressure plate, 2-handle lock hole, 3-flat washer, 4-spring washer, 5-bolt, 6-valve stem, 7-valve body, 8-limit pin 1, 9-limit pin 2, 10-padlock, 11-limit platform, 12-handle. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0013] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0014] Reference Figures 1 to 2 It can be seen that the handle limit and locking integrated structure of the small-diameter floating ball valve includes a pressure plate 1, a valve stem 6, a valve body 7, a limit pin 1 8, a limit pin 2 9, a padlock 10 and a handle 12. The valve stem 6 is installed at the center of the upper part of the valve body 7 (this is the existing mature structure of the floating ball valve). The upper end of the valve body 7 is located at the outer ring of the valve stem 6 and is fixedly connected to the pressure plate 1. The top of the valve stem 6 is fixedly connected to the handle 12. A handle lock hole 2 is opened at the left end of the handle 12. A padlock 10 is provided in the handle lock hole 2. The padlock 10 can lock the position state of the handle 12. A limit platform 11 is integrated at the lower right side of the handle 12. The upper end of the valve body 7 is fixedly connected to the limit pin 1 8 and the limit pin 2 9. The limit pin 1 8 and the limit pin 2 9 can position the rotation angle of the handle 12 through the limit platform 11.

[0015] The pressure plate 1 is provided with two through holes that match the handle lock hole 2, and the two through holes are distributed at ninety degrees. The two through holes cooperate with the handle lock hole 2 to facilitate locking the position state of the handle 12 with a padlock 10; the limit pin 1 8 and the limit pin 2 9 are respectively located at the opposite ends of the two through holes on the pressure plate 1, and the limit pin 1 8 and the limit pin 2 9 cooperate with the limit platform 11 to limit the rotation angle of the handle; the handle 12 is fixedly connected to the top of the valve stem 6 by a bolt 5, and a spring washer 4 and a flat washer 3 are installed between the bolt 5 and the valve stem 6 from top to bottom. The handle 12 is fixed with the bolt 5 to facilitate the installation and disassembly of the handle 12.

[0016] The principles and advantages of the present invention: the handle limit and locking integrated structure of a small-diameter floating ball valve. When in use, the valve stem 6 is rotated by the handle 12. During the rotation of the handle 12, the limit platform 11 will contact the limit pin 1 8 and the limit pin 2 9. When the limit platform 11 contacts the limit pin 1 8 and the limit pin 2 9 respectively, the handle lock hole 2 will respectively correspond to the two through holes on the pressure plate 1. These two positions are the open and closed states of the valve respectively. When the handle lock hole 2 corresponds to the two through holes on the pressure plate 1 respectively, the padlock 10 can be used to lock the open and closed states of the valve. The present invention has a simple and reasonable structure, is easy to use, has a low production cost, and is suitable for popularization and use.

[0017] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A small-caliber floating ball valve handle limit and lock integrated structure, comprising a pressure plate (1), a valve stem (6), a valve body (7), a limit pin 1 (8), a limit pin 2 (9), a padlock (10) and a handle (12), characterized in that: A valve stem (6) is installed at the center of the upper part of the valve body (7), and a pressure plate (1) is fixedly connected to the outer ring of the valve stem (6) at the upper end of the valve body (7), and a handle (12) is fixedly connected to the top end of the valve stem (6). A handle lock hole (2) is opened at the left end of the handle (12), and a padlock (10) is provided in the handle lock hole (2). A limit platform (11) is integrally provided at the lower right side of the handle (12), and a limit pin 1 (8) and a limit pin 2 (9) are fixedly connected to the upper end of the valve body (7).

2. The small-caliber floating ball valve handle limit and locking integrated structure according to claim 1 is characterized in that: The pressure plate (1) is provided with two through holes that match the handle lock hole (2), and the two through holes are distributed at ninety degrees.

3. The small-caliber floating ball valve handle limit and locking integrated structure according to claim 2 is characterized in that: The limiting pin 1 (8) and the limiting pin 2 (9) are respectively located at opposite ends of the two through holes on the pressure plate (1).

4. The small-caliber floating ball valve handle limit and locking integrated structure according to claim 1 is characterized in that: The handle (12) is fixedly connected to the top of the valve stem (6) via a bolt (5), and a spring washer (4) and a flat washer (3) are sequentially installed between the bolt (5) and the valve stem (6) from top to bottom.

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