CN212745287U

CN212745287U - Groove rising stem gate valve

Info

Publication number: CN212745287U
Application number: CN202021421967.4U
Authority: CN
Inventors: 张子轩; 段克勤
Original assignee: Guangdong Yuquan Fluid Technology Co ltd
Current assignee: Guangdong Yuquan Fluid Technology Co ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-03-19
Anticipated expiration: 2030-07-17

Abstract

The utility model provides a simple structure, a ditch rising stem gate valve with encryption function, including gate valve body, valve gap, valve plate, valve rod, be equipped with the encryption room on the valve gap, valve rod upper end position in encrypt indoorly, the rotatable opening and closing rod that wears to be equipped with and is used for the rotating-valve rod on the encryption room, be equipped with the interlock that is used for making opening and closing rod and valve rod interlock between opening and closing rod and the valve rod, interlock includes a plurality of gag lever posts, opening and closing rod position in first cavity internal fixation is equipped with the fixed block, the gag lever post slidable wears to locate the fixed block, open and close the second passageway between rod and the gag lever post, the gag lever post can separate wear to locate the second passageway, the gag lever post other end is equipped with the separator who is used for making gag lever post and second passageway separation.

Description

Groove rising stem gate valve

Technical Field

The utility model relates to a valve field, in particular to rising stem gate valve of ditch.

Background

At present, the groove rising stem gate valve is widely used on pipelines in industries such as petroleum, chemical industry, pharmacy, metallurgy, coal, electric power industry, urban water supply and drainage and the like, is used for controlling the circulation and the cut-off of pipeline media, and is one of the most widely applied valves in various fluid conveying projects. The gate valve is an opening and closing part, the valve plate moves along the central vertical direction, the valve plate moves upwards to be opened, the valve plate moves downwards to be closed, and the rising stem gate valve is a valve with a rising stem, when the hand wheel drives the nut to do circular motion, the valve stem drives the valve plate to do linear motion, so that the valve plate is opened and closed, and the gate valve meets the opening and closing functions. However, since the open-stem gate valve of the groove is easy to open, certain potential safety hazards exist in production if effective management is not carried out. If the door is opened maliciously by others, the door is easy to lose in production. In the public resource management, if the system is started by non-working personnel, resource waste is easily caused.

SUMMERY OF THE UTILITY MODEL

Therefore, to foretell problem, the utility model provides a simple structure, a ditch rising stem gate valve that has encryption function.

In order to achieve the above object, the technical solution of the present invention is to provide a trench rising stem gate valve, which comprises a gate valve body, a valve cover disposed on the gate valve body, a water inlet channel and a water outlet channel radially disposed along the gate valve body, and a valve plate disposed between the water inlet channel and the water outlet channel for controlling opening and closing of fluid, wherein a valve rod is disposed above the valve plate and inside the valve body, a first channel is disposed above the gate valve body, a lower end of the valve rod is fixedly connected to the valve plate, an upper end of the valve rod penetrates through the first channel, a dense chamber is disposed on the valve cover, an upper end of the valve rod is disposed inside the dense chamber, an opening and closing rod for rotating the valve rod is rotatably disposed on the dense chamber, a linkage device for linking the opening and closing rod and the valve rod is disposed between the opening and closing rod and the valve rod, the linkage device comprises a, the opening and closing rod is fixedly provided with a fixed block in the first cavity, the limiting rod is slidably arranged in the fixed block in a penetrating mode, a second channel is arranged between the opening and closing rod and the limiting rod, the limiting rod is detachably arranged in the second channel in a penetrating mode, and a separating device used for separating the limiting rod from the second channel is arranged at the other end of the limiting rod.

The further improvement is that: the separating device comprises a first gear, the first gear is rotatably arranged on the opening and closing rod and is positioned in the first cavity, a protrusion is fixedly arranged on the first gear, a sliding block is fixedly connected to the opening and closing rod, a sliding groove is formed in the sliding block, the protrusion is clamped in the sliding groove, and a driving device used for driving the first gear to rotate is further arranged on the opening and closing rod.

The further improvement is that: the driving device comprises a second gear which can be in meshing transmission with the first gear, a rotating shaft is rotatably arranged in the opening and closing rod, the second gear is fixedly sleeved at the lower end part of the rotating shaft, the upper end part of the rotating shaft penetrates through the opening and closing rod, and a rotating device which is convenient for rotating the rotating shaft is further arranged at the upper end part of the rotating shaft.

The further improvement is that: the rotating device is provided with a hexagonal counter bore for the rotating shaft.

The further improvement is that: the number of the first gears is four, and the first gears are uniformly distributed on the opening and closing rod in an array mode.

The further improvement is that: the first chamber comprises an opening and closing rod chamber and a valve rod chamber, the opening and closing rod chamber is arranged on the opening and closing rod, and the valve rod chamber is arranged on the valve rod.

The further improvement is that: the second channel comprises a starting and closing rod channel and a valve rod channel, the starting and closing rod channel is arranged on the starting and closing rod, and the valve rod channel is arranged on the valve rod.

The further improvement is that: the opening and closing rod is attached to the valve rod.

The further improvement is that: and a hand wheel is fixedly arranged on the opening and closing rod, and a third channel communicated with the hexagonal counter bore is formed in the hand wheel.

The utility model has the advantages and the beneficial effects that:

when the gate valve is opened, the limiting rod is clamped into the second channel between the opening and closing rod and the valve rod, so that the gate valve can be opened, and the problem that non-working personnel directly open the gate valve to cause loss in production and waste of public resources is avoided. And when opening the gate valve, need just can open the gate valve with the help of external instrument and carry out multistep operation, have fine encryption effect, prevent that non-staff from operating, especially public occasion, non-professional opens the gate valve, steals water or carries out other activities, is favorable to the management of production management and public resource.

Drawings

Fig. 1 is a schematic view of a split structure of a trench rising stem gate valve according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic structural diagram of embodiment a of the present invention.

Fig. 3 is a schematic view of a cutting structure at the position B-B of the embodiment of the present invention.

Fig. 4 is a schematic diagram of a second channel structure according to an embodiment of the present invention.

Fig. 5 is a schematic view of a hand wheel structure according to an embodiment of the present invention.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1-5, a trench rising stem gate valve comprises a gate valve body 1, a valve cover 4 disposed on the gate valve body 1, a water inlet channel 2 and a water outlet channel 3 radially disposed along the gate valve body 1, and a valve plate 5 disposed between the water inlet channel 2 and the water outlet channel 3 for controlling opening and closing of fluid, wherein a valve rod 6 is disposed above the valve plate 5 and inside the gate valve body 1, a first channel is disposed above the gate valve body 1, a lower end of the valve rod 6 is fixedly connected to the valve plate 5, an upper end of the valve rod 6 penetrates through the first channel, a packing chamber 7 is disposed on the valve cover 4, an upper end of the valve rod 6 is disposed in the packing chamber 7, an opening and closing rod 8 for rotating the valve rod 6 is rotatably disposed on the packing chamber 7 through a bearing, the opening and closing rod 8 is attached to the valve rod 6, and a device for linking the opening and

closing rod

8 and 6 is disposed between the opening and closing rod 8 and valve rod 6, the linkage device comprises a limiting rod 11, an opening and closing rod cavity is formed in the opening and closing rod 8, a valve rod cavity is formed in the valve rod 6, a first cavity 10 is formed between the opening and closing rod cavity and the valve rod cavity, a fixing block 12 is fixedly arranged in the first cavity 10 of the opening and closing rod 8, the limiting rod 11 can be arranged on the fixing block 12 in a penetrating mode in a sliding mode, an opening and closing rod channel is formed in the opening and closing rod 8, a valve rod channel is formed in the valve rod 6, a second channel 18 is formed between the opening and closing rod 8 channel and the valve rod 6 channel, the limiting rod 11 can be arranged on the second channel 18 in a penetrating mode in a separating mode, a separating device used for separating the limiting rod 11 from the second channel 18 is arranged at the other end of the limiting rod 11, the separating device comprises a first gear 15, the first gear 15 is rotatably arranged on the opening and closing rod 8 through a pin shaft 13 and is arranged in the, the improved automatic opening and closing mechanism is characterized in that a protrusion 17 is fixedly arranged on the first gear 15, a sliding block 15 is fixedly connected to the opening and closing rod 8, a sliding groove 16 is formed in the sliding block 15, the protrusion 17 is clamped in the sliding groove 16, a driving device used for driving the first gear 15 to rotate is further arranged on the opening and closing rod 8, the driving device comprises a second gear 14 which can be in meshing transmission with the first gear 15, a rotating shaft 9 is rotatably arranged in the opening and closing rod 8 through a bearing, the second gear 14 is fixedly sleeved on the lower end portion of the rotating shaft 9, the upper end portion of the rotating shaft 9 penetrates through the opening and closing rod 8, and a hexagonal counter bore 91 is further formed in the upper end portion of the rotating shaft 9.

In order to prolong the service life of the limiting rod 11, four first gears 15 are provided, and the first gears 15 are uniformly distributed on the opening and closing rod 8 in an array manner. The four limit rods 11 are respectively clamped in the second channels 18, so that not only can the clamping strength be increased, but also the situation that a single limit rod 11 is easily damaged due to stress can be avoided.

In order to facilitate the rotation of the opening and closing rod 8, a hand wheel 19 is fixedly arranged on the opening and closing rod 8, and a third channel 191 communicated with the hexagonal counter bore 91 is formed in the hand wheel 19.

The working principle is as follows:

when the groove rising stem gate valve is to be opened, an operator clamps an external tool into the hexagonal counterbore 91, then rotates the rotating shaft 9, the rotating shaft 9 drives the second gear 14 to rotate, the second gear 14 drives the first gear 15 to rotate, the bulge 17 on the first gear 15 slides in the sliding groove 16 when rotating, the sliding block 15 is driven to move, the limiting rod 11 slides towards the direction of the second channel 18, meanwhile, the hand wheel 19 is rotated, the second channel 18 is formed between the opening and closing rod 8 and the valve rod 6 for the insertion of the limiting rod 11, then the rotating shaft 9 is stopped to rotate, the hand wheel 19 is rotated again, the hand wheel 19 drives the opening and closing rod 8 to rotate the opening and closing rod 8, and the valve rod 6 is driven to rotate to open the gate valve. On the contrary, when the gate valve is to be closed, the hand wheel 19 is rotated to close the gate valve, and then the rotating rod is rotated to separate the limiting rod 11 from the second channel 18, so that the clamping is released, and the encryption is completed.

Having shown and described the basic principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims and their equivalents.

Claims

1. The utility model provides a ditch rising stem gate valve, includes the gate valve body, set up in valve gap on the gate valve body, along radial inhalant canal and the exhalant canal of seting up of gate valve body, set up in inhalant canal with be used for controlling the valve plate that fluid opened and close between the exhalant canal, the valve plate top is located the inside valve rod that is equipped with of gate valve body, first passageway has been seted up to gate valve body top, the lower tip of valve rod with valve plate fixed connection, wear out the valve rod upper end first passageway, its characterized in that: the valve comprises a valve cover, a valve rod and a valve rod, wherein the valve cover is provided with an encryption chamber, the upper end part of the valve rod is positioned in the encryption chamber, an opening and closing rod for rotating the valve rod is rotatably arranged on the encryption chamber in a penetrating mode, a linkage device for linking the opening and closing rod and the valve rod is arranged between the opening and closing rod and the valve rod, the linkage device comprises a plurality of limiting rods, the opening and closing rod is positioned in a first chamber and fixedly provided with fixed blocks, the limiting rods can be slidably arranged on the fixed blocks in a penetrating mode, a second channel is arranged between the opening and closing rod and the limiting rods, the limiting rods can be separately arranged in the second channel in a penetrating mode, and a separating device for separating the limiting rods from.

2. The channel rising stem gate valve of claim 1, wherein: the separating device comprises a first gear, the first gear is rotatably arranged on the opening and closing rod and is positioned in the first cavity, a protrusion is fixedly arranged on the first gear, a sliding block is fixedly connected to the opening and closing rod, a sliding groove is formed in the sliding block, the protrusion is clamped in the sliding groove, and a driving device used for driving the first gear to rotate is further arranged on the opening and closing rod.

3. The rising stem gate valve of claim 2, wherein: the driving device comprises a second gear which can be in meshing transmission with the first gear, a rotating shaft is rotatably arranged in the opening and closing rod, the second gear is fixedly sleeved at the lower end part of the rotating shaft, the upper end part of the rotating shaft penetrates through the opening and closing rod, and a rotating device which is convenient for rotating the rotating shaft is further arranged at the upper end part of the rotating shaft.

4. The rising stem gate valve of claim 3, wherein: the rotating device is provided with a hexagonal counter bore for the rotating shaft.

5. The rising stem gate valve of claim 2, wherein: the number of the first gears is four, and the first gears are uniformly distributed on the opening and closing rod in an array mode.

6. The channel rising stem gate valve of claim 1, wherein: the first chamber comprises an opening and closing rod chamber and a valve rod chamber, the opening and closing rod chamber is arranged on the opening and closing rod, and the valve rod chamber is arranged on the valve rod.

7. The channel rising stem gate valve of claim 1, wherein: the second channel comprises a starting and closing rod channel and a valve rod channel, the starting and closing rod channel is arranged on the starting and closing rod, and the valve rod channel is arranged on the valve rod.

8. The channel rising stem gate valve of claim 1, wherein: the opening and closing rod is attached to the valve rod.

9. The channel rising stem gate valve of claim 1, wherein: and a hand wheel is fixedly arranged on the opening and closing rod, and a third channel communicated with the hexagonal counter bore is formed in the hand wheel.