CN217463414U

CN217463414U - Valve stress application rod structure

Info

Publication number: CN217463414U
Application number: CN202221666594.6U
Authority: CN
Inventors: 陈默; 韩晓宇; 彭真容; 刘利; 邹沛君; 陈江荣; 黎方铃
Original assignee: Chongqing Three Gorges Water And Soil Drainage Co ltd
Current assignee: Chongqing Three Gorges Water And Soil Drainage Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-09-20
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses a valve stress application rod structure, which comprises a valve rod seat, wherein the valve rod seat can be fixedly arranged on a valve; the valve rod seat is provided with a force application rod, the lower end of the force application rod is connected with a valve rod of the valve, the upper end of the force application rod is provided with a driving structure for driving the lengthened valve rod to rotate around the axis of the lengthened valve rod or move along the axis of the lengthened valve rod, and the force application rod can drive the valve rod to rotate or move when rotating or moving. The utility model discloses a pass through the valve with the application of force pole, shift the operating surface to ground to avoid getting into valve well or other finite spaces, and through adding and establishing valve stem seat and drive structure, when ground operation, can be fine transmit the effort to the valve rod of valve on, the form is opened to different valves simultaneously, has designed different structural style, simple structure, convenient operation, the effectual potential safety hazards such as falling, suffocation, poisoning of stopping staff's operating valve production.

Description

Valve stress application rod structure

Technical Field

The utility model relates to the technical field of valves, especially, relate to a valve stress application pole structure.

Background

Basically, every cell body of sewage treatment plant all designs evacuation valve and other pipeline valves etc. in addition, sewage treatment plant still is equipped with row mud valve at the primary sedimentation pond, and these valves all design in subaerial valve well basically, need the operation of going into the pit during operation, and sewage treatment plant primary sedimentation pond row mud valve is established in mud row mud pond usually, and the operation of being not convenient for very much, and these valve wells belong to finite space again, and the switch valve is inconvenient has the potential safety hazard again.

Disclosure of Invention

To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: the utility model provides a valve stress application pole structure, solved staff's entering valve well or other finite space switch valves, troublesome poeration, efficiency is not high, has the technical problem of potential safety hazards such as falling, stifling, poisoning.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a valve stress application rod structure comprises a valve rod seat, wherein the valve rod seat can be fixedly arranged on a valve; the valve rod seat is provided with a force application rod, one end of the force application rod is connected with a valve rod of the valve, the other end of the force application rod is provided with a driving structure for driving the lengthened valve rod to rotate around the axis of the lengthened valve rod or move along the axis of the lengthened valve rod, and the force application rod can drive the valve rod to rotate or move when rotating or moving.

As an optimization, one end of the valve rod seat is fixedly connected with the valve, the other end of the valve rod seat is provided with a containing groove used for installing the driving structure, a cavity is formed in the valve rod seat, and the force applying rod vertically penetrates through the containing groove and the cavity and then is connected with the valve rod.

Preferably, the lower part of the valve rod seat is expanded to form an expansion section, and a splayed transition section is arranged between the upper part and the lower part of the valve rod seat.

As an optimization, the driving structure comprises a thrust ring which is arranged in the accommodating groove and sleeved on the stressing rod, the thrust ring is connected with the stressing rod in a matched manner through a clamping groove, a locking nut is installed in the accommodating groove in a threaded fit manner, the locking nut is sleeved on the stressing rod, and one end of the locking nut, facing the thrust ring, is attached to the thrust ring; the driving structure further comprises a hand wheel arranged at the end part of one end, far away from the valve, of the stress application rod and used for driving the stress application rod to rotate around the axis of the stress application rod.

As an optimization, the driving structure comprises a bearing arranged in the accommodating groove, the outer ring of the bearing is tightly matched and connected with the accommodating groove, the inner ring of the bearing is tightly matched and provided with a driving nut, and the driving nut is coaxially sleeved on the force applying rod and is in threaded fit connection with the force applying rod; the driving nut is provided with a hand wheel for driving the driving nut to rotate.

As optimizing, still include the gland, gland and valve seat fixed connection, and the one end of gland stretches into in the storage tank and laminates with the bearing for carry on spacingly to the bearing.

Preferably, the force application rod is fixedly connected or in transmission connection with the valve rod.

Compared with the prior art, the application has the following beneficial effects:

the utility model discloses a pass through the valve with the application of force pole, shift the operating surface to ground to avoid getting into valve well or other finite spaces, and through adding and establishing valve stem seat and drive structure, when ground operation, can be fine transmit the effort to the valve rod of valve on, the form is opened to different valves simultaneously, has designed different structural style, simple structure, convenient operation, the effectual potential safety hazards such as falling, suffocation, poisoning of stopping staff's operating valve production.

Drawings

Fig. 1 and fig. 2 are schematic views of two mounting structures of the valve packing device without bolt connection and with larger torque requirement;

fig. 3 and 4 are schematic views of two mounting structures suitable for bolted connection of the valve packing device and having smaller torque requirements;

in the figure, 1 valve rod seat, 2 force applying rod, 3 cavity, 4 transition section, 5 thrust ring, 6 locking nut, 7 hand wheel, 8 bearing, 9 driving nut and 10 gland.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In the specific implementation: with reference to figures 1-4 of the drawings,

embodiment 1, a valve stress application rod 2 structure, including a valve rod base 1, the valve rod base 1 is fixedly installed on a valve; install the helping hand pole 2 on the valve stem seat 1, the lower extreme of helping hand pole 2 is connected with the valve rod of valve, and is specific, and the helping hand pole 2 is connected with the valve rod, can adopt nut direct fixed connection, or welding, or other connection forms, also can adopt laborsaving or reduction gears forms such as multiple lever drive connection or gear drive connection to adapt to different demands. The upper end of the valve rod is provided with a driving structure for driving the lengthened valve rod to rotate around the axis of the lengthened valve rod or move along the axis of the lengthened valve rod, and the valve rod can be driven to rotate or move when the stressing rod 2 rotates or moves. Valve rod seat 1's one end and valve fixed connection, the other end are equipped with and are used for the installation the storage tank of drive structure, and 1 inside cavity 3 that has of valve rod seat, the tank bottom that adds the power pole 2 runs through the storage tank just passes is connected with the valve rod behind the cavity 3. The driving structure comprises a thrust ring 5 which is arranged in the accommodating groove and sleeved on the stressing rod 2, the thrust ring 5 is connected with the stressing rod 2 in a matched mode through a clamping groove, a locking nut 6 is installed in the accommodating groove in a threaded matched mode, the locking nut 6 is sleeved on the stressing rod 2, and one end, facing the thrust ring 5, of the locking nut is attached to the thrust ring 5; the driving structure further comprises a hand wheel 7 arranged at the end part of one end, far away from the valve, of the stressing rod 2 and used for driving the stressing rod 2 to rotate around the axis of the stressing rod. In specific implementation, the hand wheel 7 may be located above the ground (for an open valve well) or below the ground (for a valve well with a cover plate), so as to facilitate the operation of the worker at the ground position without going down to the inside of the valve well.

One end of the valve rod seat 1 close to the valve is provided with a transition section 4 with a splayed or inverted splayed longitudinal section, and an inclined or spiral rib plate can be arranged on the inner side or the outer side of the transition section 4, so that the supporting effect of the valve rod seat 1 on the counter force when operating the hand wheel 7 is improved on one hand, the valve rod seat 1 is effectively prevented from generating distortion, on the other hand, the valve rod seat can be well adapted to different valve structures, if a filling device on the valve is provided with a bolt connection or a bolt-free connection, or the torque requirement is large or small, and the like, and the valve rod seat can be well fixedly connected with a regular splayed or inverted splayed structure according to the actual situation.

More specifically, for a non-rising stem valve, the bolt fixing of the valve stem base 1 is made according to the connecting size of the valve cover and the valve base of the valve. The bottom of the valve rod seat 1 and the valve cover of the valve are fixedly connected through screws, a hand wheel 7 of an original valve (such as a gate valve) is removed, and the joint of the stress application rod 2 and the valve rod is processed according to the shape of a hole of the hand wheel 7 of the original valve rod to form male-female cooperation. The stress application rod 2 is inserted into the original valve rod and is fastened by a locking screw. When the hand wheel 7 rotates, the force applying rod 2 rotates, and the force applying rod 2 cannot move up and down under the action of the thrust ring 5 and can only rotate (the thrust ring 5 is axially positioned by the valve rod seat 1 and the locking nut 6). The stress application rod 2 drives the original valve rod to rotate, so that the valve core is driven to move up and down, and the opening and closing of the gate valve are realized.

Embodiment 2, for the rising stem valve, the structural form of embodiment 2 is adopted, and the structural form is different from embodiment 1 in that the driving structure includes a bearing 8 disposed in the accommodating groove, an outer ring of the bearing 8 is tightly fitted and connected with the accommodating groove, a driving nut 9 is tightly fitted and mounted in an inner ring thereof, and the driving nut 9 is coaxially sleeved on the forcing rod 2 and is in threaded fit connection therewith; a hand wheel 7 is arranged on the driving nut 9 and used for driving the driving nut to rotate. Still include gland 10, gland 10 and valve seat fixed connection, and the one end of gland 10 stretches into in the storage tank and laminates with bearing 8 for it is spacing to carry out bearing 8.

Specifically, the force application rod 2 adopts a screw rod and is in threaded fit with the driving nut 9, when the hand wheel 7 rotates, the driving nut 9 rotates, the upper portion and the lower portion of the driving nut 9 are respectively provided with a plane thrust bearing 8, the lower portion is positioned by the accommodating groove in the valve rod seat 1, and the upper portion is positioned by the gland 10, so that the driving nut 9 can only rotate and cannot move up and down, therefore, the driving nut 9 drives the force application rod 2 to move up and down along the axis of the force application rod, the valve core is driven to move up and down, and the opening and closing of the gate valve are realized.

The utility model discloses a pass through the valve with the power pole, shift the operating surface to ground to avoid getting into valve well or other finite spaces, and establish valve rod seat and drive structure through adding, when the ground operation, can be fine transmit the effort to the valve rod of valve on, the form is opened to different valves simultaneously, has designed different structural style, simple structure, convenient operation, the effectual potential safety hazards such as falling, stifling, poisoning of stopping staff operation valve production.

While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and variations may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents, which are therefore intended to be merely illustrative of the invention and do not constitute a limitation on the invention in any way whatsoever.

Claims

1. A valve stress application rod structure is characterized by comprising a valve rod seat, wherein the valve rod seat can be fixedly arranged on a valve; the valve rod seat is provided with a force application rod, the lower end of the force application rod is connected with a valve rod of the valve, the upper end of the force application rod is provided with a driving structure for driving the lengthened valve rod to rotate around the axis of the lengthened valve rod or move along the axis of the lengthened valve rod, and the force application rod can drive the valve rod to rotate or move when rotating or moving.

2. The valve force application rod structure of claim 1, wherein the valve rod seat has a cavity therein, and the lower end of the valve rod seat is an open structure; the lower end of the valve rod seat is sleeved on the outer side of the valve rod and fixedly connected with the valve, the upper end of the valve rod seat is provided with a containing groove used for installing the driving structure, and the force application rod vertically penetrates through the containing groove and the cavity and then is connected with the valve rod.

3. The valve stem structure of claim 1 or 2, wherein the lower portion of the valve stem base is enlarged to form an enlarged section, and a transition section having a shape of a Chinese character 'ba' is formed between the upper portion and the lower portion of the valve stem base.

4. The valve stress application rod structure of claim 3, wherein the driving structure comprises a thrust ring disposed in the accommodating groove and sleeved on the stress application rod, the thrust ring is connected with the stress application rod in a matching manner through a clamping groove, a locking nut is installed in the accommodating groove in a threaded matching manner, the locking nut is sleeved on the stress application rod, and one end of the locking nut, facing the thrust ring, is attached to the thrust ring; the driving structure further comprises a hand wheel arranged at the end part of one end, far away from the valve, of the stress application rod and used for driving the stress application rod to rotate around the axis of the stress application rod.

5. The valve stress application rod structure of claim 3, wherein the driving structure comprises a bearing disposed in the accommodating groove, an outer ring of the bearing is tightly fitted and connected with the accommodating groove, an inner ring of the bearing is tightly fitted and installed with a driving nut, and the driving nut is coaxially sleeved on the stress application rod and is in threaded fit connection with the stress application rod; the driving nut is provided with a hand wheel for driving the driving nut to rotate.

6. The valve stress application rod structure of claim 5, further comprising a gland, wherein the gland is fixedly connected with the valve seat, and one end of the gland extends into the accommodating groove to be attached to the bearing for limiting the bearing.

7. A valve lever structure of any one of claims 4 to 6 wherein the lever is fixedly or drivingly connected to the valve stem.