Vacuum ball valve with quick release structure

Abstract

The utility model discloses a vacuum ball valve with a quick release structure, and relates to the technical field of ball valves. The check valve comprises a valve body, a valve element is arranged in the valve body, a valve seat is arranged on the outer surface of the upper end of the valve body, and a valve rod is arranged in the valve seat. Through the arrangement of the limiting mechanism, the use state of the valve body can be adjusted by rotating the twisting block, even if the valve body is used in a narrow space, the valve body can be rapidly operated, and in the process, the valve body is not prone to falling off. The resistance to the rotation of the twisting block is increased from multiple angles by utilizing the magnetic adsorption force between the magnet sheet I and the magnet sheet II, the elastic force of the elastic sheet and the elastic force of the spring, so that the rotation difficulty of the valve rod due to mistaken touch is increased, and the use safety of equipment is improved; and the rack II repeatedly collides with the teeth I under the action of the spring and vibrates, so that an obvious touch feeling can be generated when an operator mistakenly touches the twisting block.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a vacuum ball valve with a quick-release structure. Background Art

[0002] Vacuum ball valves are widely used in petroleum, chemical, mining, construction, and instrument manufacturing industries. They are not prone to leakage and can accurately control flow.

[0003] The valve stem of the existing ball valve is generally provided with a wrench, which is used to drive the valve stem to rotate, and the valve is opened and closed by rotating the wrench installed on the valve cover. However, in an environment with a relatively narrow space, the half shaft cannot be rotated conveniently, and the rotation process may cause discomfort to the operator;

[0004] In addition, the existing valve body wrench is relatively simple to operate when in use. A slight touch can cause the valve stem to rotate slightly. Therefore, when the operator is familiar with the surrounding equipment, it is easy to accidentally touch the wrench, and even cause the valve stem to rotate a certain angle, increasing the risk of using the ball valve. Utility Model Content

[0005] The purpose of the utility model is to solve the problems in the prior art and to provide a vacuum ball valve with a quick-release structure.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a vacuum ball valve with a quick-release structure, comprising a valve body, a valve core is arranged inside the valve body, and a valve seat is arranged on the outer surface of the upper end of the valve body, a valve stem is arranged inside the valve seat, and one end of the valve stem penetrates into the interior of the valve body and is connected to the valve core, and the upper end of the valve stem penetrates into the outside of the valve seat and is fixedly connected to a fixing ring;

[0007] The outer surface of the upper end of the fixed ring is connected to a connecting ring by bolts, and the outer surface of the connecting ring is symmetrically fixedly connected with two groups of connecting plates, one end of the connecting plate is fixedly connected to the connecting ring, and the other end is hinged with a movable plate, and a limiting mechanism for controlling the rotation of the valve stem is arranged between the two groups of movable plates.

[0008] The limiting mechanism includes an elastic sheet, a limiting column and a limiting groove; an elastic sheet is arranged between the movable plate and the connecting plate, and one end of the elastic sheet is fixedly connected to the movable plate, and the other end is fixedly connected to the connecting plate; the lower end outer surface of the movable plate is fixedly connected to the limiting column, and the upper end outer surface of the valve seat is provided with a limiting groove at a position corresponding to the limiting column.

[0009] Furthermore, the cross-sectional area of ​​the limiting groove is larger than the cross-sectional area of ​​the limiting column, and a magnet sheet 1 is provided at the bottom end of the inner surface of the limiting groove, and a magnet sheet 2 is provided on the outer surface of the lower end of the limiting column, and the magnetism of the magnet sheet 1 is opposite to that of the magnet sheet 2.

[0010] Furthermore, one end of the movable plate away from the connecting plate is hinged with a rotating plate, a fixed plate is arranged between the two groups of rotating plates, both ends of the fixed plate are respectively hinged with the two groups of rotating plates, and the upper end outer surface of the fixed plate is fixedly connected with a twisting block.

[0011] Furthermore, the outer surface of the upper end of the connecting plate is fixedly connected with a connecting tube, and the connecting tube is movably connected to a limiting block inside the connecting tube, the upper end of the limiting block is fixedly connected with a connecting strip, and both sides of the outer surface of the connecting strip are fixedly connected with a plurality of groups of teeth at equal distances, the outer surface of the upper end of the connecting tube is provided with sliding grooves at positions on both sides of the connecting strip, and the inside of the sliding groove is slidingly fixedly connected with a guide column, the outside of the guide column is slidingly connected with a slider, a spring is provided on one side of the guide column, and one end of the spring is fixedly connected to the slider, and the other end is fixedly connected to the sliding groove, the outer surface of the upper end of the slider is fixedly connected with a rack, and the rack is meshed with teeth, and the upper end of the connecting strip is fixedly connected to the fixed plate.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] In the utility model, a limit mechanism is provided, and the use state of the valve body can be adjusted by rotating the twist block. Even when used in a relatively narrow space, it can be operated very quickly. In the process, the magnetic adsorption force between the magnet sheet one and the magnet sheet two, the elastic force of the elastic sheet and the elastic force of the spring are utilized to increase the resistance to the rotation of the twist block from multiple angles, thereby increasing the difficulty of the valve stem rotating due to accidental touching, improving the safety of the equipment. Moreover, the rack two repeatedly collides and vibrates with the tooth one under the action of the spring, so that when the operator accidentally touches the twist block, a more obvious touch can be generated to warn the operator, thereby further enhancing the safety of the valve body during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the limiting mechanism of the utility model;

[0016] Figure 3 For the utility model Figure 2 A magnified view of region A;

[0017] Figure 4This is a combined view of the connecting tube and the connecting strip of the utility model;

[0018] Figure 5 For the utility model Figure 4 A magnified view of region B;

[0019] Figure 6 This is a combined view of the connecting plate and the movable plate of the utility model.

[0020] : 1. valve body; 2. valve core; 3. valve stem; 4. valve seat; 5. fixing ring; 6. connecting ring; 7. connecting plate; 8. limiting mechanism; 801. elastic sheet; 802. limiting column; 803. limiting groove; 804. magnet sheet one; 805. magnet sheet two; 806. rotating plate; 807. fixing plate; 808. twisting block; 809. connecting cylinder; 810. limiting block; 811. connecting strip; 812. tooth one; 813. slide groove; 814. guide column; 815. slider; 816. rack; 817. spring; 9. movable plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] like Figure 1-5 As shown, the utility model proposes a vacuum ball valve with a quick-release structure, comprising a valve body 1, a valve core 2 is arranged inside the valve body 1, and a valve seat 4 is arranged on the outer surface of the upper end of the valve body 1, a valve stem 3 is arranged inside the valve seat 4, and one end of the valve stem 3 penetrates into the interior of the valve body 1 and is connected to the valve core 2, and the upper end of the valve stem 3 penetrates into the outside of the valve seat 4 and is fixedly connected to a fixing ring 5;

[0024] The outer surface of the upper end of the fixed ring 5 is connected to the connecting ring 6 by bolts, and the outer surface of the connecting ring 6 is symmetrically fixedly connected with two groups of connecting plates 7, one end of the connecting plate 7 is fixedly connected to the connecting ring 6, and the other end is hinged with a movable plate 9. The connecting ring 6 is connected to the fixed ring 5 by bolts, which facilitates the disassembly of the limiting mechanism 8. A limiting mechanism 8 for controlling the rotation of the valve stem 3 is arranged between the two groups of movable plates 9.

[0025] The limiting mechanism 8 includes an elastic sheet 801, a limiting column 802 and a limiting groove 803; an elastic sheet 801 is arranged between the movable plate 9 and the connecting plate 7, and one end of the elastic sheet 801 is fixedly connected to the movable plate 9, and the other end is fixedly connected to the connecting plate 7. The lower end outer surface of the movable plate 9 is fixedly connected to the limiting column 802, and the limiting column 802 enters the interior of the limiting groove 803 under the action of the elastic sheet 801. The limiting groove 803 is provided at the position of the upper end outer surface of the valve seat 4 corresponding to the limiting column 802. The limiting column 802 is separated from the limiting groove 803, and the valve body 1 can be driven to rotate by rotating the connecting plate 7.

[0026] The cross-sectional area of ​​the limiting groove 803 is larger than the cross-sectional area of ​​the limiting column 802, and a magnet sheet 1 804 is provided at the bottom end of the inner surface of the limiting groove 803, and a magnet sheet 2 805 is provided on the outer surface of the lower end of the limiting column 802. The magnetic properties of magnet sheet 1 804 and magnet sheet 2 805 are opposite, and magnet sheet 1 804 increases the difficulty of separating the limiting column 802 and the limiting groove 803.

[0027] One end of the movable plate 9 away from the connecting plate 7 is hinged with a rotating plate 806, and a fixed plate 807 is arranged between the two groups of rotating plates 806. The two ends of the fixed plate 807 are respectively hinged to the two groups of rotating plates 806, and the upper end outer surface of the fixed plate 807 is fixedly connected with a twist block 808, which applies resistance to the rotation of the valve stem 3 in multiple directions, thereby increasing the difficulty of the valve stem 3 being rotated by mistake.

[0028] Embodiment 2:

[0029] like Figure 2-6 As shown, the difference between this embodiment and embodiment 1 is that, when the fixing plate 807 pulls the connecting strip 811 upward, the upper outer surface of the connecting plate 7 is fixedly connected with the connecting tube 809, and the connecting tube 809 is internally movably connected with a limiting block 810, the upper end of the limiting block 810 is fixedly connected with the connecting strip 811, and a plurality of groups of teeth 812 are evenly fixedly connected on both sides of the outer surface of the connecting strip 811, and the upper outer surface of the connecting tube 809 is provided with sliding grooves 813 at both sides of the connecting strip 811, and the inside of the sliding groove 813 is slidably and fixedly connected with a guide column 814.

[0030] The outside of the guide column 814 is slidably connected to a slider 815, and a spring 817 is provided on one side of the guide column 814. The spring 817 cooperates with the elastic sheet 801 to reduce the probability of the twisting block 808 being pulled by mistake, and one end of the spring 817 is fixedly connected to the slider 815, and the other end is fixedly connected to the slide groove 813. The upper end outer surface of the slider 815 is fixedly connected to a rack 816, and the rack 816 is meshed with tooth 1 812, and the upper end of the connecting bar 811 is fixedly connected to the fixed plate 807, and tooth 1 812 is repeatedly meshed and opposed with tooth 2 of the rack 816. When the limiting column 802 is separated from the limiting groove 803, the rack 816 is meshed with tooth 1 812 to limit tooth 1 812.

[0031] The working process and principle of the utility model are as follows:

[0032] Step 1: When the valve stem 3 needs to be rotated, hold the twisting block 808 and the fixed plate 807, pull upward, and the rotating plate 806 drives the movable plate 9 to rotate in the direction close to the connecting plate 7, the limiting column 802 is separated from the limiting groove 803, and then the twisting block 808 is twisted to adjust the state of the valve body 1;

[0033] Step 2: When the fixing plate 807 pulls the connecting strip 811 upward, the tooth 1 812 repeatedly meshes and faces with the tooth 2 of the rack 816. When the limiting column 802 is separated from the limiting groove 803, the rack 816 meshes with the tooth 1 812 to limit the tooth 1 812, thereby ensuring the stability of the connecting strip 811 and the fixing plate 807.

[0034] Step 3: When the operator pulls the fixing plate 807 and the twisting block 808, the rack 816 2 collides with the tooth 1 812 repeatedly and vibrates under the action of the spring 817, so that when the operator accidentally touches the twisting block 808, a more obvious touch is generated to warn the operator;

[0035] Step 4. When the rotating plate 806 drives the movable plate 9 to flip toward the connecting plate 7, the elastic sheet 801 is squeezed. The elasticity of the elastic sheet 801 and the magnetic adsorption force between the magnet sheet 1 804 and the magnet sheet 2 805 can increase the difficulty of separating the limit column 802 and the limit groove 803, thereby reducing the probability of the valve body 1 being accidentally twisted.

[0036] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vacuum ball valve with a quick-release structure, comprising a valve body (1), characterized in that: A valve core (2) is arranged inside the valve body (1), and a valve seat (4) is arranged on the outer surface of the upper end of the valve body (1); a valve stem (3) is arranged inside the valve seat (4), and one end of the valve stem (3) penetrates into the interior of the valve body (1) and is connected to the valve core (2); the upper end of the valve stem (3) penetrates into the outside of the valve seat (4) and is fixedly connected to a fixing ring (5); The outer surface of the upper end of the fixing ring (5) is connected to a connecting ring (6) by bolts, and the outer surface of the connecting ring (6) is symmetrically fixedly connected to two groups of connecting plates (7), one end of the connecting plate (7) is fixedly connected to the connecting ring (6), and the other end is hinged to a movable plate (9), and a limiting mechanism (8) for controlling the rotation of the valve stem (3) is provided between the two groups of movable plates (9).

2. The vacuum ball valve with a quick-release structure according to claim 1, characterized in that: The limiting mechanism (8) comprises an elastic sheet (801), a limiting column (802) and a limiting groove (803); an elastic sheet (801) is arranged between the movable plate (9) and the connecting plate (7), and one end of the elastic sheet (801) is fixedly connected to the movable plate (9), and the other end is fixedly connected to the connecting plate (7); the lower end outer surface of the movable plate (9) is fixedly connected to the limiting column (802), and the upper end outer surface of the valve seat (4) is provided with a limiting groove (803) at a position corresponding to the limiting column (802).

3. The vacuum ball valve with a quick-release structure according to claim 2, characterized in that: The cross-sectional area of ​​the limiting groove (803) is greater than the cross-sectional area of ​​the limiting column (802), and a magnet sheet 1 (804) is arranged at the bottom end of the inner surface of the limiting groove (803), and a magnet sheet 2 (805) is arranged on the outer surface of the lower end of the limiting column (802), and the magnetism of the magnet sheet 1 (804) is opposite to that of the magnet sheet 2 (805).

4. The vacuum ball valve with a quick-release structure according to claim 3, characterized in that: One end of the movable plate (9) away from the connecting plate (7) is hingedly connected to a rotating plate (806), a fixed plate (807) is arranged between the two groups of rotating plates (806), the two ends of the fixed plate (807) are respectively hingedly connected to the two groups of rotating plates (806), and the outer surface of the upper end of the fixed plate (807) is fixedly connected to a twisting block (808).

5. The vacuum ball valve with a quick-release structure according to claim 4, characterized in that: The outer surface of the upper end of the connecting plate (7) is fixedly connected to a connecting tube (809), and the connecting tube (809) is internally movably connected to a limit block (810), the upper end of the limit block (810) is fixedly connected to a connecting strip (811), and both sides of the outer surface of the connecting strip (811) are fixedly connected to a plurality of groups of teeth (812) at equal distances, and the outer surface of the upper end of the connecting tube (809) is provided with a slide groove (813) at both sides of the connecting strip (811), and the inner sliding fixed groove (813) is provided with a plurality of teeth (812) at the upper end of the connecting tube (809). A guide column (814) is connected, and a slider (815) is slidably connected to the outside of the guide column (814). A spring (817) is provided on one side of the guide column (814), and one end of the spring (817) is fixedly connected to the slider (815), and the other end is fixedly connected to the slide groove (813). A rack (816) is fixedly connected to the outer surface of the upper end of the slider (815), and the rack (816) is meshed with tooth one (812), and the upper end of the connecting bar (811) is fixedly connected to the fixed plate (807).

Images