CN212745288U - Flange rising stem gate valve - Google Patents

Abstract

The utility model provides a flange rising stem gate valve with simple structure and encryption function, which comprises a gate valve body, a fixed block, a valve cover, a water inlet channel, a water outlet channel, a valve plate and a valve rod, wherein a first channel is arranged above the gate valve body, the lower end part of the valve rod is fixedly connected with the valve plate, the upper end part of the valve rod penetrates out of the first channel, an encryption chamber is fixedly arranged on the valve cover, the valve rod penetrates out of the encryption chamber, a fixed bracket is fixedly connected on the inner wall of the encryption chamber, a first through hole for a valve rod to pass through is arranged on the fixed support along the central axis of the fixed support, the valve rod passes through the first through hole and is arranged on the fixed support in a penetrating way, the valve rod opening and closing device is characterized in that the fixed support is provided with a plurality of sliding grooves, the fixed support is provided with sliding blocks which are positioned in the sliding grooves and used for limiting the opening and closing of the valve rod in a sliding mode, and the encryption chamber is further internally provided with a sliding device used for enabling the sliding blocks to slide.

Description

Flange rising stem gate valve

Technical Field

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

Background

The gate plate of the rising stem gate valve moves linearly along with the valve rod, generally trapezoidal threads are arranged on the lifting rod, and the rotary motion is changed into the linear motion, namely the operation torque is changed into the operation thrust through a nut at the top end of the valve and a guide groove on the valve body. The working principle of the manual rising stem gate valve is as follows: the hand wheel is rotated, and the valve plate connected with the valve rod is lifted or lowered by advancing and retreating the threads of the hand wheel and the valve rod, so that the opening and closing effects are achieved. However, since the rising stem gate valve is easy to open, if effective management is not carried out, certain potential safety hazards exist in production. 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 flange rising stem gate valve simple structure, with encryption function.

In order to achieve the above object, the technical solution of the present invention is to provide a flanged 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 gate 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 out of the first channel, a chamber is fixedly disposed on the valve cover, the valve rod penetrates out of the chamber, a fixing bracket is fixedly connected to an inner wall of the chamber, a first through hole for the valve rod to pass through is disposed along a central axis of the fixing bracket, the valve rod penetrates through the first through hole and is disposed on, the valve rod opening and closing device is characterized in that the fixed support is provided with a plurality of sliding grooves, the fixed support is provided with sliding blocks which are positioned in the sliding grooves and used for limiting the opening and closing of the valve rod in a sliding mode, and the encryption chamber is further internally provided with a sliding device used for enabling the sliding blocks to slide.

The further improvement is that: the sliding device comprises a rotating disc which is rotatably arranged on the fixed support, a second through hole for the valve rod to pass through is formed in the rotating disc, the second through hole is overlapped with the center shaft of the first through hole, an arc-shaped guide groove is formed in the rotating disc in a matched mode according to a sliding block, a sliding protrusion is fixedly arranged on the end face, located on the rotating disc, of the sliding block, the sliding protrusion is clamped in the arc-shaped guide groove, and a driving device used for driving the rotating disc to rotate is further arranged in the encryption chamber.

The further improvement is that: the driving device comprises a worm wheel and a worm, the worm wheel is fixedly arranged on the rotating disc, the worm wheel is sleeved on the valve rod, the worm is rotatably arranged on the inner wall of the encryption chamber, one end of the worm is provided with a polygonal counter bore for rotating the worm, and a channel communicated with the counter bore is formed in the encryption chamber.

The further improvement is that: and a sealing rubber plug is sleeved in the channel of the encryption chamber.

The further improvement is that: the slider is located the end of opening and shutting of valve rod and is seted up the arcwall face with valve rod assorted.

The further improvement is that: the gate valve body one end is provided with the feed liquor ring flange, the first screw hole of a plurality of has been seted up on the feed liquor ring flange, the gate valve body other end is provided with out the liquid ring flange, be equipped with a plurality of second screw hole on the play liquid ring flange.

The further improvement is that: and a hand wheel is fixedly arranged at the top end of the valve rod.

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

when the gate valve is opened, the valve rod can be clamped and tightly pushed by the sliding block, and the problem that non-working personnel directly open the gate valve to cause loss in production and resource waste can be avoided. And when opening the gate valve, need pull down sealing rubber stopper, then rotate the worm through outside instrument, just can remove the slider with the valve rod block, just can rotate the valve rod, open the gate valve, have fine hidden effect, advance one-step non-staff's operation that prevents, be favorable to the management of production management and public resource.

Drawings

Fig. 1 is the utility model discloses flange rising stem gate valve structure sketch map of cutting open.

Fig. 2 is a schematic view of a cut-open structure at a-a of the embodiment of the present invention.

Fig. 3 is the embodiment of the present invention, which is a schematic view of a local structure of a flange rising stem gate valve.

Fig. 4 is a schematic structural view of a rotating disc 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. 1-4, the flanged rising stem gate valve includes a gate valve body 1, a valve cap 2 disposed on the gate valve body 1, a water inlet passage 193 and a water outlet passage 194 disposed along a radial direction of the gate valve body 1, and a valve plate 5 disposed between the water inlet passage 193 and the water outlet passage 194 for controlling opening and closing of fluid, wherein a valve rod 6 is disposed above the valve plate 5 and located inside the gate valve body 1, a first passage 19 is disposed above the gate valve body 1, a lower end portion of the valve rod 6 is fixedly connected to the valve plate 5, an upper end portion of the valve rod 6 penetrates through the first passage 19, a densification chamber 11 is fixedly disposed on the valve cap 2, the valve rod 6 penetrates through the densification chamber 11, a fixing bracket 15 is fixedly connected to an inner wall of the densification chamber 11, a first through hole 152 for the valve rod 6 to pass through is disposed on the fixing bracket 15 along a central axis of the fixing bracket 15, the valve rod 6 penetrates through the first through hole 152 and, the fixed support 15 is provided with three sliding grooves 151, the fixed support 15 is provided with a sliding block 13 for limiting the opening and closing of the valve rod 6 in the sliding grooves 151 in a sliding manner, the encryption chamber 11 is also provided with a sliding device for sliding the sliding block 13, the sliding device comprises a rotating disc 17 rotatably arranged on the fixed support 15, the rotating disc 17 is provided with a second through hole (not shown in the figure) for the valve rod 6 to pass through, the second through hole is superposed with the central axis of the first through hole 152, the rotating disc 17 is provided with an arc-shaped guide groove 171 in a matching manner according to the sliding block 13, the sliding block 13 is fixedly provided with a sliding protrusion (not shown in the figure) at the end of the rotating disc 17, the sliding protrusion is clamped in the arc-shaped guide groove 171, the encryption chamber 11 is also provided with a driving device for driving the rotating disc 17 to rotate, and the driving device comprises a worm wheel 14 and a worm 16 capable of being meshed with the, worm wheel 14 is fixed to be located on the rolling disc 17, worm wheel 14 cover is located on the valve rod 6, worm 16 locates through the rotation encryption indoor 11 inner wall, worm 16 one end offer be used for rotating 16 hexagon counter bore 161 and encrypt the room 11 on seted up with the passageway 19 that the counter bore is linked together, encryption room 11 is located passageway 19 endotheca and is equipped with sealed rubber buffer (not shown in the figure). When the gate valve is to be opened, the sealing rubber plug is firstly detached, then the sealing rubber plug is clamped into the hexagonal counter bore 161 through an external tool, the worm 16 is rotated, the worm 16 drives the worm wheel 14 to rotate, the worm wheel 14 drives the rotary table to rotate, when the rotary table rotates, the arc-shaped guide groove 171 acts on the sliding protrusion, the sliding protrusion moves far away from the end of the valve rod 6 in the arc-shaped guide groove 171, the sliding block 13 is linked under the action of the sliding protrusion, moves far away from the end of the valve rod 6, the clamping with the valve rod 6 is removed, the valve rod 6 is rotated at the moment, and. When the gate valve is to be closed, the valve rod 6 is rotated to close the gate valve, then the gate valve is clamped into the hexagonal counter bore 161 through an external tool, the worm 16 is rotated in the opposite direction, the worm 16 drives the worm wheel 14 to rotate, the worm wheel 14 drives the rotary disc to rotate, when the rotary disc rotates, the arc-shaped guide groove 171 acts on the sliding protrusion, the sliding protrusion moves towards the end close to the valve rod 6 in the arc-shaped guide groove 171, the sliding block 13 is linked under the action of the sliding protrusion, moves towards the end close to the valve rod 6 and is clamped with the valve rod 6 to prop against the valve rod 6, the valve rod 6 cannot rotate, then the sealing rubber plug is plugged into the channel 19, sealing is completed, and non-.

In order to enable the sliding block 13 to better clamp the valve rod 6, an arc-shaped surface 131 matched with the valve rod 6 is formed at the opening and closing end of the valve rod 6 of the sliding block 13.

In order to facilitate the installation and connection of the gate valve and the pipeline, a liquid inlet flange 7 is arranged at one end of the gate valve body 1, a plurality of first threaded holes 8 are formed in the liquid inlet flange 7, a liquid outlet flange 9 is arranged at the other end of the gate valve body 1, and a plurality of second threaded holes 10 are formed in the liquid outlet flange 9.

In order to conveniently open and close the gate valve, a hand wheel 18 is fixedly arranged at the top end of the valve rod 6.

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 (7)

1. Flange rising stem gate valve, including 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, the valve rod upper end is worn out first passageway, its characterized in that: the valve rod passes through first through-hole and wears to locate on the fixed bolster, a plurality of spouts have been seted up on the fixed bolster, lie in on the fixed bolster slidable is equipped with the slider that is used for restricting the valve rod to open and close in the spout, still be equipped with in the encryption chamber and be used for making the gliding slider of slider.

2. The flanged rising stem gate valve of claim 1, wherein: the sliding device comprises a rotating disc which is rotatably arranged on the fixed support, a second through hole for the valve rod to pass through is formed in the rotating disc, the second through hole is overlapped with the center shaft of the first through hole, an arc-shaped guide groove is formed in the rotating disc in a matched mode according to a sliding block, a sliding protrusion is fixedly arranged on the end face, located on the rotating disc, of the sliding block, the sliding protrusion is clamped in the arc-shaped guide groove, and a driving device used for driving the rotating disc to rotate is further arranged in the encryption chamber.

3. The flanged rising stem gate valve of claim 2, wherein: the driving device comprises a worm wheel and a worm, the worm wheel is fixedly arranged on the rotating disc, the worm wheel is sleeved on the valve rod, the worm is rotatably arranged on the inner wall of the encryption chamber, one end of the worm is provided with a polygonal counter bore for rotating the worm, and a channel communicated with the counter bore is formed in the encryption chamber.

4. The flanged rising stem gate valve of claim 3, wherein: and a sealing rubber plug is sleeved in the channel of the encryption chamber.

5. The flanged rising stem gate valve of claim 1, wherein: the slider is located the end of opening and shutting of valve rod and is seted up the arcwall face with valve rod assorted.

6. The flanged rising stem gate valve of claim 1, wherein: the gate valve body one end is provided with the feed liquor ring flange, the first screw hole of a plurality of has been seted up on the feed liquor ring flange, the gate valve body other end is provided with out the liquid ring flange, be equipped with a plurality of second screw hole on the play liquid ring flange.

7. The flanged rising stem gate valve of claim 1, wherein: and a hand wheel is fixedly arranged at the top end of the valve rod.

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