CN215861802U

CN215861802U - Gate valve with indicator

Info

Publication number: CN215861802U
Application number: CN202122055849.7U
Authority: CN
Inventors: 兰勇军; 占凯丰; 乔冠超; 刘丽艳; 孙娇燕; 陈涛; 柳雅玉; 蒋海涛; 兰天
Original assignee: Shanghai Yaao Valve Co ltd
Current assignee: Shanghai Yaao Valve Co ltd
Priority date: 2021-08-28
Filing date: 2021-08-28
Publication date: 2022-02-18
Anticipated expiration: 2031-08-28

Abstract

The invention relates to the technical field of gate valves, in particular to a gate valve with an indicator, which comprises a valve cover, a valve rod and a hand wheel, wherein the valve rod is vertically arranged, the bottom end of the valve rod penetrates into the valve body and is in threaded connection with the valve body, the hand wheel is rotatably arranged at the top of the valve body and is connected with the valve rod through a nut, a dust cover is arranged at the top of the valve body and is positioned above the hand wheel, and a through hole for the valve rod to penetrate through is formed in the top of the dust cover in a penetrating mode. This application has the effect that improves the actual life of gate valve.

Description

Gate valve with indicator

Technical Field

The invention relates to the technical field of gate valves, in particular to a gate valve with an indicator.

Background

The gate valve is a shutter plate, the moving direction of which is perpendicular to the fluid direction, and the gate valve can only be fully opened and fully closed, but cannot be adjusted and throttled. Gate valves are sealed by the contact of the valve seat and gate plate, and the sealing surface is usually welded with metal materials to increase wear resistance, such as 1Cr13, STL6, stainless steel, etc. The gate plate is divided into a rigid gate plate and an elastic gate plate according to the difference of the gate plate.

In view of the above-mentioned related technologies, the inventor believes that, due to structural limitations of the bonnet and the packing mechanism thereof, the opening and closing position of the valve cannot be displayed during opening and closing of the bonnet and the packing mechanism, so that the opening degree of the valve cannot be visually observed, and excessive force is easily applied by a user, so that the thread of the valve rod is damaged, and the actual service life of the gate valve is shortened.

Disclosure of Invention

To improve the practical life of the gate valve, the present application provides a gate valve with an indicator.

The application provides a take indicator floodgate valve adopts following technical scheme:

take indicator floodgate valve, including valve gap, valve rod and hand wheel, the valve rod is vertical setting, just the bottom of valve rod penetrates in the valve body and with valve body threaded connection, the hand wheel rotates to be installed the top of valve body, just the hand wheel with the valve rod passes through the nut and connects, the dust cover is installed at the top of valve body, the dust cover is located the hand wheel top, just the top of dust cover runs through inside and has seted up the confession the through-hole that the valve rod was worn out.

Through adopting above-mentioned technical scheme, during the use, the staff drives the valve rod rotation through rotating the hand wheel to make the top of valve rod wear out the income through-hole, the staff is through observing the extension length of valve rod this moment, and then knows the degree of opening of valve, plays the indicative function to the staff, has reduced the user and has used hard too greatly, causes the damage to the screw thread of valve rod, and then has improved the life of gate valve.

Optionally, the side wall of the valve rod is respectively carved with an opening indicating line and a closing indicating line, the opening indicating line is used for showing that the gate valve is in an open state, and the closing indicating line is used for showing that the gate valve is in a closed state.

Through adopting above-mentioned technical scheme, during the use, the staff twists the valve rod and rotates for the valve rod moves up or down, and then makes closed instruction line or opens the top of instruction line and dust cover and flushes mutually, is favorable to further improving the effect that the staff observed the valve degree of opening.

Optionally, the dust cover includes end cover sub-seat and top sub-cover, end cover sub-seat fixed mounting be in the top of valve body, top sub-cover with end cover sub-seat can dismantle the connection.

Through adopting above-mentioned technical scheme, the dismantlement of top sub-cover and end cover sub-seat is connected, is favorable to the staff to maintain the change through dismantling the structure of top sub-cover in to end cover sub-seat.

Optionally, the outer side wall of the bottom cover sub-base is provided with an external thread, the inside of the top sub-cover is correspondingly provided with an internal thread, and the bottom cover sub-base is in threaded fit with the top sub-cover.

Through adopting above-mentioned technical scheme, the sub-seat of end cover carries out the complex setting with the top sub-cover through the screw thread, has realized that top sub-cover can dismantle with the sub-seat of end cover and is connected.

Optionally, an indicator is detachably mounted at the top of the valve rod, and a marking line is carved on the side wall of the indicator.

Through adopting above-mentioned technical scheme, the setting of indicator and mark line for the staff can be through observing the mark line on the indicator, thereby makes things convenient for the staff to speculate through observing and then on the indicator to the open mode of valve.

Optionally, a limiting block is fixed to a side wall of the indicator, and the width of the limiting block is greater than that of the through hole.

Through adopting above-mentioned technical scheme, the setting of stopper can break away from the effect that the dust cover played the restriction to the indicator, is favorable to improving the stability that the stopper is located the dust cover and removes.

Optionally, the top end of the indicator is provided with a guide angle.

Through adopting above-mentioned technical scheme, the effect that can penetrate the through-hole to the top of indicator and play the guide is set up to the guide angle to be favorable to improving indicator and through-hole grafting complex stability.

Optionally, the valve rod includes the sub-pole of main part and connects the sub-pole, connect the sub-pole to be located the top of the sub-pole of main part, just the top of the sub-pole of main part with the bottom fixed connection of the sub-pole of connector, the width of the sub-pole of connector is less than the width of the sub-pole of main part, the external screw thread has been seted up to the lateral wall of the sub-pole of connector, the circular slot has been seted up at the top of the sub-pole of main part, the circular slot with sub-pole looks adaptation of connector, just the internal thread has been seted up to the cell wall of circular slot, connect the sub-pole with circular slot threaded connection.

Through adopting above-mentioned technical scheme, during the installation, will connect sub-pole and circular slot and aim at to twist and move the sub-pole of connection, thereby make and connect sub-pole and circular slot threaded connection and fixed, connect the setting that sub-pole and circular slot are connected, be favorable to dismantling and connect sub-pole, thereby make things convenient for the staff to dismantle the maintenance to connecting sub-pole.

In summary, the present application includes at least one of the following beneficial technical effects:

when the gate valve is used, a worker drives the valve rod to rotate through rotating the hand wheel, so that the top end of the valve rod penetrates out of the receiving through hole, the worker can know the opening degree of the valve by observing the extending length of the valve rod, an indicating effect is achieved on the worker, damage to threads of the valve rod due to the fact that the worker exerts too much force is reduced, and the service life of the gate valve is prolonged;

when the dustproof cover is used, a worker twists the valve rod to rotate, so that the valve rod moves upwards or downwards, and the closing indicating line or the opening indicating line is flush with the top of the dustproof cover, and the function of observing the opening degree of the valve by the worker is further improved;

the setting of stopper can break away from the effect that the dust cover played the restriction to the indicator, is favorable to improving the stopper and is located the stability that removes in the dust cover.

Drawings

FIG. 1 is a schematic illustration of a partial structure of a gate valve with an indicator in the practice of the present application.

Fig. 2 is a schematic partial structure diagram of a two-band indicator gate valve in accordance with an embodiment of the present application.

Description of reference numerals:

1. a valve cover; 2. a valve stem; 21. a main body sub-rod; 22. a connecting sub-rod; 3. a hand wheel; 4. opening an indicating line; 5. closing the indicator line; 6. a dust cover; 61. a bottom cover sub-base; 62. a top sub-cover; 7. an indicator; 8. a guide angle; 9. and a limiting block.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The first embodiment is as follows:

the embodiment of the application discloses tape indicator gate valve. Referring to fig. 1, the gate valve with indicator 7 includes a bonnet 1, a valve stem 2, and a hand wheel 3. Valve rod 2 is vertical setting, and the bottom of valve rod 2 penetrate in the valve body and with valve body threaded connection. The hand wheel 3 rotates and is installed at the top of the valve body, and the hand wheel 3 is fixed at the top of the valve rod 2 through a nut. And a dust cover 6 is arranged at the top of the valve body, and the dust cover 6 is positioned above the hand wheel 3. The top of the dustproof cover 6 penetrates through the inner part to be provided with a through hole for the valve rod 2 to penetrate out.

Referring to fig. 1, the valve stem 2 includes a main body sub-stem 21 and a connection sub-stem 22, the connection sub-stem 22 is located at the top of the main body sub-stem 21, and the top end of the main body sub-stem 21 is fixedly connected with the bottom end of the connection sub-stem 22. The width of the connecting sub-rod 22 is smaller than that of the main body sub-rod 21, and the connecting sub-rod 22 is matched with the through hole. The lateral wall of the connecting sub-rod 22 is provided with an external thread, the top of the main body sub-rod 21 is provided with a circular groove, the circular groove is matched with the connecting sub-rod 22, the wall of the circular groove is provided with an internal thread, and the connecting sub-rod 22 is in threaded connection with the circular groove. The arrangement that connector pole 22 is connected with the circular slot is favorable to dismantling connector pole 22 to make things convenient for the staff to dismantle the maintenance to connector pole 22.

Referring to fig. 1, the gate valve is conveniently observed in an open state by a worker. An opening indicating line 4 and a closing indicating line 5 are respectively carved on the side wall of the connecting sub-rod 22, and the opening indicating line 4 is positioned below the closing indicating line 5. When the opening indicating line 4 is level with the top of the dust cover 6, the gate valve is in a fully opened state; when closing the pilot line and dust cover 6's top at same level, the gate valve is in the complete closure state to make things convenient for the staff to observe the degree that the stop valve was opened, reduce because of the staff is hard too big, cause the damage to the screw thread of valve rod 2, be favorable to improving the life of gate valve.

Referring to fig. 1, the dust cover 6 includes a bottom cover sub-base 61 and a top cover sub-base 62, the bottom cover sub-base 61 is fixedly installed on the top of the valve body, and the top cover sub-base 62 is detachably connected to the bottom cover sub-base 61. The outer side wall of the bottom cover sub-base 61 is provided with external threads, the inside of the top cover 62 is correspondingly provided with internal threads, and the bottom cover sub-base 61 is in threaded fit with the top cover 62.

The implementation principle of the gate valve with the indicator 7 in the embodiment of the application is as follows: during the use, the staff drives valve rod 2 through rotating hand wheel 3 and rotates to make the top of valve rod 2 wear out the income through-hole, the staff opens indicateing line 4 and closed indicateing line 5 through observing this moment, and then knows the degree of opening of valve, plays the indicative function to the staff, has reduced the user and has used hard too greatly, causes the damage to the screw thread of valve rod 2, and then has improved the life of gate valve.

Example two:

the difference between the present embodiment and the first embodiment is: referring to fig. 2, an indicator 7 is detachably mounted on the top of the valve stem 2, and a marking line is drawn on the side wall of the indicator 7. The setting of mark line makes things convenient for the staff to observe the open mode of gate valve. Specifically, the top end of the connector rod 22 is provided with a slot, and the indicator 7 is in inserting fit with the slot.

Referring to fig. 2, the top end of the indicator 7 is provided with a guide angle 8. The setting of guide angle 8 can penetrate the effect that the through-hole played the guide to the top of indicator 7 to be favorable to improving indicator 7 and through-hole grafting complex stability. Further, a stopper 9 is fixed to a side wall of the indicator 7. The setting of stopper 9 can break away from the effect that dust cover 6 played the restriction to indicator 7, is favorable to improving the stability that stopper 9 is located the dust cover 6 and removes.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. Band indicator floodgate valve, including valve gap (1), valve rod (2), valve body and hand wheel (3), its characterized in that: valve rod (2) are vertical setting, just the bottom of valve rod (2) penetrates in the valve body and with valve body threaded connection, hand wheel (3) rotate to be installed the top of valve body, just hand wheel (3) with valve rod (2) are connected through the nut, dust cover (6) are installed at the top of valve body, dust cover (6) are located hand wheel (3) top, just the top of dust cover (6) runs through inside and offers the confession the through-hole that valve rod (2) were worn out, the lateral wall of valve rod (2) is carved with respectively and is opened indicateing line (4) and closed indicateing line (5), it is in the open mode to open indicateing line (4) and is used for embodying the gate valve, closed indicateing line (5) are used for embodying the gate valve and are in the closed state.

2. The tape indicator gate valve of claim 1, wherein: the dust cover (6) comprises a bottom cover sub-base (61) and a top sub-cover (62), the bottom cover sub-base (61) is fixedly installed at the top of the valve body, and the top sub-cover (62) is detachably connected with the bottom cover sub-base (61).

3. The tape indicator gate valve of claim 2, wherein: the outer side wall of the bottom cover sub-base (61) is provided with an external thread, the inside of the top sub-cover (62) is correspondingly provided with an internal thread, and the bottom cover sub-base (61) is in threaded fit with the top sub-cover (62).

4. The tape indicator gate valve of claim 1, wherein: valve rod (2) include the sub-pole of main part (21) and connect sub-pole (22), connect sub-pole (22) and be located the top of the sub-pole of main part (21), just the top of the sub-pole of main part (21) with the bottom fixed connection of connecting sub-pole (22), the width of connecting sub-pole (22) is less than the width of the sub-pole of main part (21), the external screw thread has been seted up to the lateral wall of connecting sub-pole (22), the circular slot has been seted up at the top of the sub-pole of main part (21), the circular slot with connect sub-pole (22) looks adaptation, just the cell wall of circular slot is seted up there is the internal thread, connect sub-pole (22) with circular slot threaded connection.