Butterfly valve with anti-falling structure

Abstract

The utility model discloses a butterfly valve with an anti-drop structure, which comprises a valve body, a valve rod is rotatably connected inside the valve body, one end of the valve rod positioned inside the valve body is fixedly connected with a valve plate, one end of the valve rod positioned outside the valve body is fixedly connected with a fixing rod, the end part of the fixing rod is fixedly connected with a handle, and the handle is fixedly connected with a valve rod. A fixing block is fixedly connected to the outer wall of the valve body, a fixing frame is fixedly connected to the top of the fixing block, and a reinforcing device is arranged at the end of the fixing frame. According to the butterfly valve with the anti-falling structure, the fixing block is arranged outside the valve body and used for installing the fixing frame and the reinforcing device, the valve rod is conveniently sleeved and limited, the valve rod is prevented from falling off, normal work of the butterfly valve is guaranteed, the service life of equipment is prolonged, the limiting device is arranged, the fixing rod is conveniently clamped, and then the angle of the valve plate is fixed; workers can conveniently, rapidly and accurately control the opening and closing angles of the valve plate.

Description

Technical Field

[0001] The utility model relates to the field of valves, and more specifically to a butterfly valve with an anti-slip structure. Background Art

[0002] The butterfly valve is an important control element widely used in fluid pipelines. Its main function is to control and regulate the flow of fluid. However, due to its structural characteristics, the valve stem and the fixed rod of the traditional butterfly valve are easily detached due to external force or vibration during use, which not only affects the normal use of the butterfly valve, but also may cause safety hazards to the pipeline system. In order to solve this problem, it is necessary to design a butterfly valve with an anti-detachment structure to improve its stability and safety in use. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the problem that during the use of traditional butterfly valves in the prior art, due to their structural characteristics, the valve stem and the fixing rod are easily separated due to external force or vibration, which not only affects the normal use of the butterfly valve, but also may cause safety hazards to the pipeline system. The purpose of the utility model is to provide a butterfly valve with an anti-detachment structure, which can realize the arrangement of a fixing block on the outside of the valve body to install a fixing frame and a reinforcement device, so as to facilitate the sleeve limiting of the valve stem to prevent the valve stem from falling off, ensure the normal operation of the butterfly valve, and improve the service life of the equipment. A limiting device is arranged to facilitate the clamping of the fixing rod, and then fix the angle of the valve plate, so that the staff can quickly and accurately control the opening and closing angles of the valve plate, and facilitate the staff to operate.

[0005] 2. Technical solution

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A butterfly valve with an anti-slip structure comprises a valve body, wherein a valve stem is rotatably connected inside the valve body, one end of the valve stem located inside the valve body is fixedly connected to a valve plate, one end of the valve stem located outside the valve body is fixedly connected to a fixing rod, the end of the fixing rod is fixedly connected to a handle, the outer wall of the valve body is fixedly connected to a fixing block, the top of the fixing block is fixedly connected to a fixing frame, a reinforcement device is provided at the end of the fixing frame, the reinforcement device limits the valve stem, and a limiting device is provided at the end of the fixing frame, the limiting device clamps the fixing rod.

[0008] Preferably, the reinforcement device includes an extrusion rod and a top cover, the extrusion rod is fixedly connected to the fixing frame, the bottom of the extrusion rod is fixedly connected to the top cover, the top cover is sleeved with the top of the valve stem, and the top cover limits the valve stem to prevent it from falling off.

[0009] Preferably, the limiting device includes a limiting plate, a spring, a slot, a pull rod and a baffle. A through hole is provided in the middle of the limiting plate. The limiting plate is slidably connected to the extrusion rod. The top of the limiting plate is fixedly connected with a spring. The spring is sleeved with the extrusion rod. The side walls of the limiting plate are provided with slots at equal angles. The slots are clamped with the fixed rod. The top of the limiting plate is fixedly connected with a pull rod. The pull rod is slidably connected to the fixed frame. The top of the pull rod is fixedly connected with a baffle.

[0010] Preferably, the number of the pull rods is two.

[0011] Preferably, a pull ring is fixedly connected to the top of the baffle.

[0012] Preferably, the surface of the handle is provided with anti-slip textures.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] By setting a fixing block on the outside of the valve body to install the fixing frame and the reinforcement device, it is convenient to limit the valve stem, prevent the valve stem from falling off, ensure the normal operation of the butterfly valve, and increase the service life of the equipment.

[0016] By setting a limit device, it is easy to clamp the fixing rod, thereby fixing the angle of the valve plate, making it easy for staff to quickly and accurately control the opening and closing angles of the valve plate, and facilitating operation by staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 A local enlarged structural schematic diagram;

[0020] Figure 4 It is a schematic diagram of the structure of the limiting plate of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Valve body; 2. Valve stem; 3. Valve plate; 4. Fixed rod; 5. Handle; 6. Fixed block; 7. Fixed frame; 8. Reinforcement device; 81. Extrusion rod; 82. Top cover; 9. Limit device; 91. Limit plate; 92. Spring; 93. Slot; 94. Pull rod; 95. Baffle; 96. Pull ring. DETAILED DESCRIPTION

[0023] 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 them. 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.

[0024] Embodiment 1:

[0025] See also Figure 1-4 The utility model provides a technical solution: a butterfly valve with an anti-slip structure, including a valve body 1, a valve stem 2 is rotatably connected inside the valve body 1, a valve plate 3 is fixedly connected to one end of the valve stem 2 located inside the valve body 1, a fixing rod 4 is fixedly connected to one end of the valve stem 2 located outside the valve body 1, a handle 5 is fixedly connected to the end of the fixing rod 4, a fixing block 6 is fixedly connected to the outer wall of the valve body 1, a fixing frame 7 is fixedly connected to the top of the fixing block 6, a reinforcing device 8 is arranged at the end of the fixing frame 7, the reinforcing device 8 limits the valve stem 2, a limiting device 9 is arranged at the end of the fixing frame 7, and the limiting device 9 clamps the fixing rod 4. One end of the valve stem 2 located outside the valve body 1 is fixedly connected to a fixing rod 4, and the end of the fixing rod 4 is fixedly connected to a handle 5. The staff holds the handle 5 to drive the fixing rod 4 to rotate, and then drives the valve stem 2 to rotate, so as to control the position of the valve plate 3. A fixing block 6 is set on the outside of the valve body 1 to install a fixing frame 7 and a reinforcement device 8, which is convenient for sleeve limiting the valve stem 2 to prevent the valve stem 2 from falling off, ensure the normal operation of the butterfly valve, and improve the service life of the equipment. A limiting device 8 is set to facilitate the clamping of the fixing rod 4, and then fix the angle of the valve plate 3, so that the staff can quickly and accurately control the opening and closing angles of the valve plate 3, and it is convenient for the staff to operate.

[0026] Among them, the reinforcement device 8 includes an extrusion rod 81 and a top cover 82, the extrusion rod 81 is fixedly connected to the fixing frame 7, the bottom of the extrusion rod 81 is fixedly connected with the top cover 82, the top cover 82 is sleeved with the top of the valve stem 2, and the top cover 82 limits the valve stem 2 to prevent it from falling off. The reinforcement device 8 is set, and the fixing frame 7 installs the top cover 82 through the extrusion rod 81, and the top of the valve stem 2 is sleeved and limited, thereby preventing the valve stem 2 from falling off, ensuring the normal operation of the butterfly valve and improving the service life of the equipment.

[0027] Among them, the limiting device 9 includes a limiting plate 91, a spring 92, a slot 93, a pull rod 94 and a baffle 95. A through hole is set in the middle of the limiting plate 91. The limiting plate 91 is slidably connected to the extrusion rod 81. The top of the limiting plate 91 is fixedly connected with a spring 92, and the spring 92 is sleeved with the extrusion rod 81. The side wall of the limiting plate 91 is provided with a slot 93 at equal angles. The slot 93 is clamped with the fixed rod 4. The top of the limiting plate 91 is fixedly connected with a pull rod 94, and the pull rod 94 is slidably connected to the fixed frame 7. The top of the pull rod 94 is fixedly connected with a baffle 95. A limit device 9 is provided, and a clamping groove 93 is provided at an equal angle on the side wall of the limit plate 91, so as to facilitate the clamping of the fixing rod 4 and thereby fix the angle of the valve plate 3. When the angle of the valve plate 3 needs to be adjusted, the baffle plate 95 is pulled upward to drive the pull rod 94 to move, thereby driving the limit plate 91 to move upward, thereby increasing the elastic potential energy of the spring 92 and releasing the fixing rod 4. The position of the valve plate 3 can be adjusted, so that the staff can quickly and accurately control the opening and closing angles of the valve plate 3 and the staff can operate conveniently.

[0028] There are two pull rods 94 to improve the clamping stability of the limit plate 91.

[0029] Among them, the top of the baffle plate 95 is fixedly connected with a pull ring 96. It is convenient for the staff to stretch the baffle plate 95 upwards.

[0030] The surface of the handle 5 is provided with anti-skid patterns to increase friction and facilitate operation.

[0031] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited to it. Any technician familiar with the technical field within the technical scope disclosed by the utility model and any equivalent replacement or change based on the technical solution and improved concept of the utility model shall be included in the protection scope of the utility model.

Claims

1. A butterfly valve with an anti-slip structure, comprising a valve body (1), characterized in that: The valve body (1) is rotatably connected to a valve stem (2) inside the valve body (1); one end of the valve stem (2) located inside the valve body (1) is fixedly connected to a valve plate (3); one end of the valve stem (2) located outside the valve body (1) is fixedly connected to a fixing rod (4); the end of the fixing rod (4) is fixedly connected to a handle (5); the outer wall of the valve body (1) is fixedly connected to a fixing block (6); the top of the fixing block (6) is fixedly connected to a fixing frame (7); a reinforcing device (8) is provided at the end of the fixing frame (7); the reinforcing device (8) limits the valve stem (2); a limiting device (9) is provided at the end of the fixing frame (7); the limiting device (9) clamps the fixing rod (4).

2. The butterfly valve with an anti-slip structure according to claim 1, characterized in that: The reinforcement device (8) comprises an extrusion rod (81) and a top cover (82); the extrusion rod (81) is fixedly connected to the fixing frame (7); the bottom of the extrusion rod (81) is fixedly connected to the top cover (82); the top cover (82) is sleeved with the top of the valve stem (2); the top cover (82) limits the valve stem (2) and prevents it from falling off.

3. The butterfly valve with an anti-slip structure according to claim 2, characterized in that: The limiting device (9) comprises a limiting plate (91), a spring (92), a slot (93), a pull rod (94) and a baffle (95); a through hole is provided in the middle of the limiting plate (91); the limiting plate (91) is slidably connected to the extrusion rod (81); a spring (92) is fixedly connected to the top of the limiting plate (91); the spring (92) is sleeved with the extrusion rod (81); slots (93) are provided at equal angles on the side wall of the limiting plate (91); the slots (93) are clamped with the fixing rod (4); a pull rod (94) is fixedly connected to the top of the limiting plate (91); the pull rod (94) is slidably connected to the fixing frame (7); and a baffle (95) is fixedly connected to the top of the pull rod (94).

4. The butterfly valve with an anti-slip structure according to claim 3, characterized in that: The number of the pull rods (94) is two.

5. The butterfly valve with an anti-slip structure according to claim 3, characterized in that: A pull ring (96) is fixedly connected to the top of the baffle (95).

6. The butterfly valve with an anti-slip structure according to claim 1, characterized in that: The surface of the handle (5) is provided with anti-slip textures.

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