Self-locking rotary valve

Abstract

The utility model discloses a self-locking rotary valve, and belongs to the technical field of rotary valves. The self-locking type rotary valve comprises a valve body and further comprises a rotary mechanism, a second rotary rod and a self-locking mechanism which are located on the surface of the upper end of the valve body, the rotary mechanism comprises a rotary handle, a first rotary rod and a driving gear, a driven gear is arranged on the outer surface of the second rotary rod, a threaded rod is in threaded connection with the interior of the upper end of the self-locking mechanism, and the first rotary rod and the driving gear are arranged in the threaded rod. The upper end of the threaded rod is connected with a rotating wheel, and the lower end of the threaded rod is provided with a bearing and a half gear. According to the self-locking rotary valve, the problem that an existing rotary valve is prone to leakage is solved, the rotating wheel is rotated, the rotating wheel drives the threaded rod to rotate, then the half gear can be driven to descend fixedly through the bearing, when the half gear descends to be meshed with the driven gear, the driven gear is clamped, then the driving gear is clamped by the driven gear, then the rotating handle is locked, and the self-locking purpose is achieved; and unnecessary waste caused by external influence or misoperation can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary valves, in particular to a self-locking rotary valve. Background Art

[0002] A rotary valve is a valve used to control the flow of fluid. It usually consists of a rotatable valve disc that can adjust the flow of the fluid by rotating.

[0003] Common rotary valves do not have a self-locking function, so after long-term use, the handle is prone to slipping, resulting in a loose closure, similar to a faucet that slips after long-term use and eventually causes leakage. At the same time, the handle that is prone to slipping can also be affected by external factors, causing the valve position to change, resulting in unnecessary waste.

[0004] Therefore, we need a self-locking rotary valve to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a self-locking rotary valve. By adding a driving gear and a driven gear, the handle can be effectively prevented from slipping, thereby affecting the closing effect. At the same time, by adding a self-locking mechanism, the handle can be locked, which can effectively prevent the handle from being wasted due to external factors.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-locking rotary valve, comprising a valve body, and also comprising a rotating mechanism, a second rotating rod and a self-locking mechanism located on the upper end surface of the valve body, the rotating mechanism comprising a rotating handle, a first rotating rod and a driving gear, the lower end of the second rotating rod is rotatably connected to the upper end surface of the valve body, the outer surface of the second rotating rod is provided with a driven gear, and the lower end of the self-locking mechanism is fixedly connected to the upper end surface of the valve body;

[0007] The lower end of the first rotating rod penetrates into the interior of the valve body and is fixedly connected to the valve disc, and the driving gear is sleeved on the outer surface of the first rotating rod;

[0008] The internal thread of the upper end of the self-locking mechanism is connected with a threaded rod, the upper end of the threaded rod is connected with a rotating wheel, and the lower end of the threaded rod is provided with a bearing and a half gear.

[0009] Preferably, the rotating handle is fixedly connected to the first rotating rod, and the driving gear is fixedly connected to the outer surface of the first rotating rod.

[0010] Preferably, the driving gear is meshingly connected with the driven gear.

[0011] Preferably, the threaded rod threadably penetrates the upper end of the self-locking mechanism, the upper end of the threaded rod is fixedly connected to the rotating wheel, and the lower end of the threaded rod is fixedly connected to the half gear via a bearing.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] (1) The utility model is a self-locking rotary valve. When the staff needs to lock the valve body, the valve body is closed and the staff can rotate the rotary wheel, which drives the threaded rod to rotate, and then drives the half gear to be fixed and lowered through the bearing. When the half gear is lowered to mesh with the driven gear, the driven gear is locked, and the driven gear then locks the driving gear, so that the rotating handle is locked to achieve the purpose of self-locking. It can effectively prevent unnecessary waste caused by external influences or misoperation, thereby increasing the overall applicability.

[0014] (2) The utility model is a self-locking rotary valve. When the staff rotates the rotating handle, the rotating handle drives the first rotating rod to rotate, and at the same time drives the driving gear to rotate. The driving gear can drive the driven gear to rotate through meshing. The direct meshing relationship between the driving gear and the driven gear can increase the stability of the rotating handle and prevent the rotating handle from slipping. The rotating handle can effectively prevent slipping after long-term use and avoid fluid leakage, thereby enriching the overall function and increasing the overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the utility model when it is locked as a whole;

[0016] Figure 2 It is a schematic diagram of the utility model when the whole is rotating;

[0017] Figure 3 It is a schematic diagram of the rotating mechanism structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the self-locking mechanism structure of the utility model.

[0019] In the figure: 1, valve body; 2, rotating mechanism; 21, rotating handle; 22, first rotating rod; 23, driving gear; 3, second rotating rod; 31, driven gear; 4, self-locking mechanism; 41, threaded rod; 42, rotating wheel; 43, bearing; 44, half gear. DETAILED DESCRIPTION

[0020] 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 implementation regulations described 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.

[0021] See also Figure 1-4A self-locking rotary valve comprises a valve body 1, a rotating mechanism 2, a second rotating rod 3 and a self-locking mechanism 4 located on the upper end surface of the valve body 1, the rotating mechanism 2 comprises a rotating handle 21, a first rotating rod 22 and a driving gear 23, the lower end of the second rotating rod 3 is rotatably connected to the upper end surface of the valve body 1, the outer surface of the second rotating rod 3 is provided with a driven gear 31, the lower end of the self-locking mechanism 4 is fixedly connected to the upper end surface of the valve body 1, the lower end of the first rotating rod 22 penetrates into the interior of the valve body 1 and is fixedly connected to the valve disc, the driving gear 23 is sleeved on the outer surface of the first rotating rod 22, and the inner thread of the upper end of the self-locking mechanism 4 is connected with a threaded rod 41, the upper end of the threaded rod 41 is connected with a rotating wheel 42, and the lower end of the threaded rod 41 is provided with a bearing 43 and a half gear 44. When the staff needs to lock the valve body 1, the valve body 1 is closed, and the staff can rotate the rotating wheel 42, and the rotating wheel 42 drives the threaded rod 41 to rotate, and then the half gear 44 can be fixed and lowered through the bearing 43. When the half gear 44 descends to mesh with the driven gear 31, the driven gear 31 is stuck, and the driven gear 31 then blocks the driving gear 23, so that the handle 21 is locked to achieve the purpose of self-locking, which can effectively prevent unnecessary waste caused by external influences or misoperation.

[0022] Furthermore, the handle 21 is fixedly connected to the first rotating rod 22, and the driving gear 23 is fixedly connected to the outer surface of the first rotating rod 22. When in use, the staff rotates the handle 21, and the handle 21 drives the first rotating rod 22 to rotate, which in turn drives the valve disc inside the valve body 1 to rotate, thereby controlling the flow rate of the fluid.

[0023] Furthermore, the driving gear 23 is meshedly connected with the driven gear 31. When the staff rotates the rotating handle 21, the rotating handle 21 drives the first rotating rod 22 to rotate, and at the same time drives the driving gear 23 to rotate. The driving gear 23 can drive the driven gear 31 to rotate through meshing. The direct meshing relationship between the driving gear 23 and the driven gear 31 can increase the stability of the rotating handle 21, so that the rotating handle 21 will not slip, and the rotating handle 21 can be effectively prevented from slipping after long-term use, thereby avoiding fluid leakage.

[0024] Furthermore, the threaded rod 41 threadably penetrates the upper end of the self-locking mechanism 4, the upper end of the threaded rod 41 is fixedly connected to the rotating wheel 42, and the lower end of the threaded rod 41 is fixedly connected to the half gear 44 via the bearing 43. When in use, the threaded rod 41 rotates and descends, which drives the half gear 44 to descend. The half gear 44 is fixed by the bearing 43 and does not need to rotate. The teeth of the half gear 44 mesh with the teeth of the driven gear 31.

[0025] Working principle: The utility model is a self-locking rotary valve. When in use, the staff can drive the valve disc inside the valve body 1 to rotate through the first rotating rod 22 by rotating the rotating handle 21, so as to control the flow rate of the fluid. When the first rotating rod 22 rotates, it will also drive the driving gear 23 mounted on its outer surface to rotate. The driving gear 23 drives the driven gear 31 through meshing. The purpose of this is to increase the stability of the first rotating rod 22 during rotation through the meshing relationship between the driving gear 23 and the driven gear 31, so that the rotating handle 21 and the first rotating rod 22 will not slip after long-term use, which can effectively prevent fluid leakage. , increasing the overall practicality. When the valve body 1 is closed, in order to avoid external factors such as misoperation, accidental collision, etc. causing the handle 21 to rotate, so that the valve body 1 is mistakenly opened and fluid waste is caused, the staff can rotate the wheel 42, and the wheel 42 drives the threaded rod 41 to rotate and descend, and then the half gear 44 can be driven by the bearing 43 to be fixed and descended to mesh with the driven gear 31, so that the driven gear 31 is stuck. If the driven gear 31 is stuck, the first rotating rod 22 and the handle 21 can be stuck and locked through the driving gear 23, so as to achieve a self-locking effect. This effect is very important for the important valve body 1, which can effectively avoid leakage or waste of important fluids, thereby increasing the overall practicality.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-locking rotary valve, comprising a valve body (1), characterized in that: It also comprises a rotating mechanism (2), a second rotating rod (3) and a self-locking mechanism (4) located on the upper end surface of the valve body (1), the rotating mechanism (2) comprising a rotating handle (21), a first rotating rod (22) and a driving gear (23), the lower end of the second rotating rod (3) being rotatably connected to the upper end surface of the valve body (1), the outer surface of the second rotating rod (3) being provided with a driven gear (31), and the lower end of the self-locking mechanism (4) being fixedly connected to the upper end surface of the valve body (1); The lower end of the first rotating rod (22) penetrates into the interior of the valve body (1) and is fixedly connected to the valve disc, and the driving gear (23) is sleeved on the outer surface of the first rotating rod (22); The internal thread of the upper end of the self-locking mechanism (4) is connected to a threaded rod (41), the upper end of the threaded rod (41) is connected to a rotating wheel (42), and the lower end of the threaded rod (41) is provided with a bearing (43) and a half gear (44).

2. A self-locking rotary valve according to claim 1, characterized in that: The rotating handle (21) is fixedly connected to the first rotating rod (22), and the driving gear (23) is fixedly connected to the outer surface of the first rotating rod (22).

3. A self-locking rotary valve according to claim 1, characterized in that: The driving gear (23) is meshingly connected with the driven gear (31).

4. A self-locking rotary valve according to claim 1, characterized in that: The threaded rod (41) is threadedly passed through the upper end of the self-locking mechanism (4); the upper end of the threaded rod (41) is fixedly connected to the rotating wheel (42); and the lower end of the threaded rod (41) is fixedly connected to the half gear (44) via a bearing (43).

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