Safety fixed ball valve with emergency cut-off function

Abstract

The utility model discloses a safety fixed ball valve with an emergency cut-off function, and relates to the field of ball valves. The safety fixing ball valve with the emergency cut-off function comprises a valve body unit and a valve deck unit arranged above the valve body unit, the valve deck unit comprises a valve deck body, a rotating rod, an electric push rod and a transmission assembly, the rotating rod is rotationally arranged in the valve deck body, the electric push rod is embedded in the outer side of the valve deck body, and the transmission assembly is arranged in the valve deck body. The transmission assembly is arranged in the valve deck body. According to the safety fixed ball valve with the emergency cut-off function, in a conventional operation mode, an operator rotates the rotating rod to drive the valve element to rotate, and in an emergency condition, the cut-off reaction is triggered, an emergency signal is received, the electric push rod is instantaneously started, and the output end of the push rod drives the transmission assembly to drive the rotating rod to rotate forcibly to drive the valve element to close a channel.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball valve technical field, concretely is safe fixed ball valve with emergency cut off function. BACKGROUND

[0002] In the field of fluid control, the traditional fixed ball valve mainly adopts manual operation or single electric drive mode. The manual ball valve relies on manual intervention, and has problems such as response lag and low operation precision, especially in emergency working conditions, it is difficult to achieve rapid closing. Although the conventional electric ball valve can realize remote control through motor drive, it has the following defects:

[0003] Complex structure: multiple transmission mechanisms such as reducers and clutches need to be configured, resulting in large size and high maintenance cost;

[0004] Insufficient reliability: it relies on continuous power supply and loses emergency shutdown capability in case of power failure;

[0005] Lack of mechanical redundancy: no manual intervention interface, emergency operation is not available when the electronic system fails. SUMMARY

[0006] In view of the deficiencies of the prior art, the utility model provides a safe fixed ball valve with emergency cut off function, which solves the problems that the traditional fixed ball valve mainly adopts manual operation or single electric drive mode, the manual ball valve relies on manual intervention, and has problems such as response lag and low operation precision, especially in emergency working conditions, it is difficult to achieve rapid closing. Although the conventional electric ball valve can realize remote control through motor drive, it has the following defects: complex structure, insufficient reliability and lack of mechanical redundancy.

[0007] In order to achieve the above purpose, the utility model realizes the following technical scheme: a safe fixed ball valve with emergency cut off function, comprising a valve body unit and a valve cover unit arranged above the valve body unit, the valve cover unit comprises:

[0008] Valve cover body;

[0009] Rotary rod, which is rotatably arranged in the inside of the valve cover body and is used for controlling the opening and closing of the valve body unit;

[0010] Electric push rod, which is embedded on the outside of the valve cover body;

[0011] Transmission assembly, which is arranged in the inside of the valve cover body and is between the output ends of the rotary rod and the electric push rod, the electric push rod cooperates with the transmission assembly to drive the rotary rod to rotate.

[0012] Preferably, the valve body unit comprises:

[0013] Valve body, which is fixedly installed below the valve cover body;

[0014] A valve core is rotationally arranged in the interior of the valve body main body.

[0015] Preferably, a valve rod is rotationally arranged between the valve body main body and the valve cover main body, the top end of the valve rod is fixedly connected with the rotating rod, and the bottom end of the valve rod is connected with the valve core.

[0016] Preferably, the transmission assembly comprises:

[0017] A limiting groove is arranged in the interior of the valve cover main body;

[0018] A transmission gear is fixedly sleeved on the outer side of the rotating rod;

[0019] A transmission rack is slidingly arranged on the inner wall of the limiting groove, and the transmission rack is engaged with the transmission gear, and the output end of the electric push rod is attached to the end of the transmission rack.

[0020] Preferably, the top end of the rotating rod extends upward through the valve cover main body and is fixedly installed with a rotating handle.

[0021] Preferably, two limiting pins are fixedly installed above the valve cover main body, and the end of the rotating handle is arranged between the two limiting pins.

[0022] The utility model discloses a safety fixed ball valve with emergency cut-off function, which has the following beneficial effects: the safety fixed ball valve with emergency cut-off function can drive the valve core to rotate by rotating the rotating rod under the normal operation mode, and can drive the valve core to close the channel by forcibly rotating the rotating rod through the transmission assembly under the emergency condition, and the electric push rod provides millisecond response, so that the full stroke can be closed quickly under the emergency condition, and the manual rotation of the rotating rod is not affected, and the opening and closing of the valve can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0024] Figure 1 It is the overall structure schematic view of the utility model;

[0025] Figure 2 It is the structure sectional view of the utility model;

[0026] Figure 3It is a structure schematic view of the valve cover unit of the utility model.

[0027] Figure 4 It is a partial structure sectional view of the valve cover unit of the utility model.

[0028] In the figure: 1, valve body unit;11, valve body main body;12, valve core;13, valve rod;2, valve cover unit;21, valve cover main body;22, rotating rod;23, electric push rod;24, transmission assembly;241, limit groove;242, transmission gear;243, transmission rack;25, rotating handle;26, limit pin. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantage of the embodiment of the application more clear, the technical scheme in the embodiment of the application is clearly and completely described, obviously, the described embodiment is a part of the embodiment of the application, rather than all the embodiment of the application.Based on the embodiment in the application, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the application.

[0030] The safety fixed ball valve with emergency cut-off function provided in the embodiment of the application solves the problems that the traditional fixed ball valve mainly adopts manual operation or single electric drive mode, the manual ball valve relies on manual intervention, and there are problems such as response lag and low operation precision, especially difficult to realize rapid closing under emergency working condition;Although the conventional electric ball valve can realize remote control through motor driving, there are the following defects such as complex structure, insufficient reliability and lack of mechanical redundancy.

[0031] Under the conventional operation mode, the operating personnel rotates the rotating rod 22 to drive the valve core 12 to rotate, in the emergency situation, the emergency cut-off reaction is triggered, the emergency signal is received, the electric push rod 23 is instantaneously started, the push rod output end drives the transmission assembly 24 to drive the rotating rod 22 to forcibly rotate, drives the valve core 12 to close the channel, the electric push rod 23 provides millisecond level response, and the full stroke closing can be quickly completed under the emergency situation, and at the same time, the manual rotating rotating rod 22 is not affected, so that the power-off can also enable the valve to be opened and closed.

[0032] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings of the specification and specific embodiments.

[0033] Embodiment one

[0034] The utility model embodiment discloses safety fixed ball valve with emergency cut-off function.

[0035] According to the drawings Figures 1-4 As shown in the figure, including valve body unit 1 and the valve cover unit 2 set up in valve body unit 1, valve cover unit 2 includes:

[0036] a valve cover body 21;

[0037] a rotating rod 22, which is rotatably arranged in the valve cover body 21 and is used for controlling opening and closing of the valve body unit 1;

[0038] an electric push rod 23, which is embedded on the outer side of the valve cover body 21;

[0039] a transmission assembly 24, which is arranged in the valve cover body 21 and is between the rotating rod 22 and the output end of the electric push rod 23, and the electric push rod 23 can drive the rotating rod 22 to rotate by cooperating with the transmission assembly 24.

[0040] In the normal operation mode, the operating personnel rotates the rotating rod 22 to drive the valve core 12 to rotate, in the emergency situation, the reaction trigger is cut off, the emergency signal is received, the electric push rod 23 is started instantaneously, the push rod output end drives the transmission assembly 24 to drive the rotating rod 22 to rotate forcibly, drives the valve core 12 to close the channel, the electric push rod 23 provides a millisecond-level response, and the full-stroke closing can be quickly completed in the emergency situation, and meanwhile, the manual rotation of the rotating rod 22 is not affected, so that the opening and closing of the valve can also be ensured.

[0041] It is particularly disclosed that the transmission assembly 24 comprises:

[0042] a limiting groove 241, which is arranged in the valve cover body 21;

[0043] a transmission gear 242, which is fixedly sleeved on the outer side of the rotating rod 22;

[0044] a transmission rack 243, which is slidably arranged on the inner wall of the limiting groove 241, and the transmission rack 243 is engaged with the transmission gear 242, and the output end of the electric push rod 23 is attached to the end portion of the transmission rack 243.

[0045] The output end of the electric push rod 23 is attached to the end portion of the transmission rack 243, when the electric push rod 23 works, the transmission rack 243 is pushed to move linearly along the limiting groove 241, the transmission rack 243 is engaged with the transmission gear 242, the rotating rod 22 is driven to rotate forcibly, and the valve core 12 is driven to close the channel.

[0046] Embodiment two

[0047] The utility model discloses a safety fixed ball valve with emergency cut-off function.

[0048] According to the accompanying Figures 1-2 According to the accompanying Figures 1-4 As shown in the accompanying

[0049] a valve cover body 21;

[0050] A rotating rod 22 is rotatably arranged in the valve cover body 21 and used to control the opening and closing of the valve body unit 1.

[0051] An electric push rod 23 is embedded on the outside of the valve cover body 21.

[0052] A transmission assembly 24 is arranged in the valve cover body 21 and between the output ends of the rotating rod 22 and the electric push rod 23, so that the electric push rod 23 can drive the rotating rod 22 to rotate by cooperating with the transmission assembly 24.

[0053] In particular, the valve body unit 1 comprises:

[0054] A valve body 11 is fixedly installed below the valve cover body 21.

[0055] A valve core 12 is rotatably arranged in the valve body 11.

[0056] Further, a valve rod 13 is rotatably arranged between the valve body 11 and the valve cover body 21, the top end of the valve rod 13 is fixedly connected with the rotating rod 22, and the bottom end of the valve rod 13 is connected with the valve core 12.

[0057] The valve core 12 realizes the opening and closing of the passage by rotating, and the valve rod 13 is a transmission shaft connecting the valve core 12 and the rotating rod 22 to realize torque transmission.

[0058] The top end of the rotating rod 22 extends upward through the valve cover body 21 and is fixedly installed with a rotating handle 25.

[0059] Further, two limiting pins 26 are fixedly installed above the valve cover body 21, and the end of the rotating handle 25 is arranged between the two limiting pins 26.

[0060] The limiting pins 26 limit the stroke of the rotating handle 25, so as to ensure that the valve is in the fully closed or fully open position.

[0061] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A safety fixed ball valve with emergency shut-off function, comprising a valve body unit (1) and a valve cover unit (2) arranged above the valve body unit (1), characterized in that, The valve cover unit (2) comprises: a valve cover body (21); a rotating rod (22) rotatably arranged inside the valve cover body (21) and used for controlling opening and closing of the valve body unit (1); an electric push rod (23) embedded outside the valve cover body (21); a transmission assembly (24) arranged inside the valve cover body (21) and between the rotating rod (22) and an output end of the electric push rod (23), the electric push rod (23) cooperating with the transmission assembly (24) to drive the rotating rod (22) to rotate.

2. The safety globe valve with emergency shut-off function according to claim 1, characterized in that The valve body unit (1) comprises: a valve body (11) fixedly installed below the valve cover body (21); a valve core (12) rotatably arranged inside the valve body (11).

3. The safety globe valve with emergency shut-off function according to claim 2, characterized in that A valve rod (13) is rotatably arranged between the valve body (11) and the valve cover body (21), a top end of the valve rod (13) is fixedly connected with the rotating rod (22), and a bottom end of the valve rod (13) is connected with the valve core (12).

4. The safety globe valve with emergency shut-off function according to claim 1, characterized in that The transmission assembly (24) comprises: a limiting groove (241) formed inside the valve cover body (21); a transmission gear (242) fixedly sleeved outside the rotating rod (22); a transmission rack (243) slidably arranged on an inner wall of the limiting groove (241), the transmission rack (243) is engaged with the transmission gear (242), and an output end of the electric push rod (23) is in abutment with an end portion of the transmission rack (243).

5. The safety globe valve with emergency shut-off function according to claim 1, characterized in that A top end of the rotating rod (22) extends upward through the valve cover body (21) and is fixedly installed with a rotating handle (25).

6. The safety globe valve with emergency shut-off function according to claim 5, characterized in that Two limiting pins (26) are fixedly installed above the valve cover body (21), and an end portion of the rotating handle (25) is arranged between the two limiting pins (26).

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