阅读说明：本技术 一种斧底排料阀 (Axe bottom discharge valve ) 是由 窦岩 海刚 张小卫 令永功 于 2020-12-30 设计创作，主要内容包括：本发明的一种斧底排料阀,包括：本体、阀芯、阀杆,该本体包括前阀体、后阀体,前阀体设有一排料口,阀芯设置在本体内；阀杆沿着本体的轴向方向穿过本体且延伸至阀芯内,阀杆一端设有阀杆压盖,阀杆压盖将阀芯分为第一密闭空间和第二密闭空间,阀杆内设置有第一进气通道和第二进气通道,第一进气通道与第一密闭空间连通,第二进气通道与第二密闭空间连通；第一进气通道打开,第一密闭空间内的气体推动阀芯朝向前阀体的排料口的方向移动以关闭排料口；第二进气通道打开,第二密闭空间内的气体推动阀芯朝远离前阀体的排料口的方向移动以打开排料口。(The invention relates to an axe bottom discharge valve, which comprises: the valve comprises a body, a valve core and a valve rod, wherein the body comprises a front valve body and a rear valve body, the front valve body is provided with a discharge port, and the valve core is arranged in the body; the valve rod penetrates through the body along the axial direction of the body and extends into the valve core, a valve rod gland is arranged at one end of the valve rod and divides the valve core into a first closed space and a second closed space, a first air inlet channel and a second air inlet channel are arranged in the valve rod, the first air inlet channel is communicated with the first closed space, and the second air inlet channel is communicated with the second closed space; the first air inlet channel is opened, and the valve core is pushed by the gas in the first closed space to move towards the direction of the discharge port of the front valve body so as to close the discharge port; and the second air inlet channel is opened, and the valve core is pushed by the gas in the second closed space to move towards the direction far away from the discharge port of the front valve body so as to open the discharge port.)

1. An axe bottom discharge valve, comprising:

the body is a hollow sealing pipe body and comprises a front valve body and a rear valve body, wherein the front valve body is provided with a discharge port, and the rear valve body is connected with the front valve body;

the valve core is a sealed cavity and is arranged in the body;

the valve rod penetrates through the rear valve body along the axial direction of the body and extends into the valve core, a valve rod gland is arranged at one end of the valve rod, the valve rod gland divides the valve core into a first closed space and a second closed space, a first air inlet channel and a second air inlet channel are arranged in the valve rod, the first air inlet channel and the second air inlet channel are not communicated with each other, the first air inlet channel is communicated with the first closed space, and the second air inlet channel is communicated with the second closed space;

the first air inlet channel is opened, and the gas in the first closed space pushes the valve core to move towards the direction of the discharge port of the front valve body so as to close the discharge port;

and the second gas inlet channel is opened, and the gas in the second closed space pushes the valve core to move towards the direction far away from the discharge port of the front valve body so as to open the discharge port.

2. The hatchet bottom discharging valve according to claim 1, wherein the valve stem has an air inlet end at one end and an air outlet end at the other end, the air inlet end is located outside the rear valve body, the air outlet end is located inside the valve core, the air inlet end is provided with a first air inlet and a second air inlet, the air outlet end is provided with a first air outlet and a second air outlet, the valve stem is provided with a first air duct and a second air duct, the first air duct and the second air duct are axially arranged along the valve body and are not communicated with each other, one end of the first air duct is communicated with the first air inlet and the other end is communicated with the first air outlet, one end of the second air duct is communicated with the second air inlet and the other end is communicated with the second air outlet, the first air inlet, the first air duct and the first air outlet form the first air inlet channel, and the air inlet of the second air duct is communicated with the second, The second air duct and the second air outlet form the second air inlet channel, the first air outlet is located in the first closed space, and the second air outlet is located in the second closed space.

3. The hatchet bottom discharge valve as claimed in claim 1, further comprising a guide rod, wherein said guide rod is connected to said valve core through said body along an axial direction of said body, and said guide rod moves in response to a reciprocating motion of said valve core.

4. The hatchet bottom discharge valve according to claim 3, further comprising a proximal travel switch and a distal travel switch, said proximal and distal travel switches being mounted beside the path of movement of said guide rod.

5. The hatchet bottom discharging valve as claimed in claim 1, wherein O-rings are used for sealing between the front valve body and the rear valve body, between the front and rear valve bodies and the valve core, and between the valve core and the valve stem.

6. The hatchet bottom discharge valve of claim 2, wherein the first air inlet and the second air inlet are both connected to an air supply.

7. The hatchet bottom discharge valve of claim 1, wherein said front valve body is bolted to said rear valve body.

8. The hatchet bottom discharge valve according to claim 4, wherein a nut is mounted on a stem that activates said distal or proximal travel switch.

Technical Field

The invention relates to a bottom discharge valve, in particular to a reciprocating discharge valve taking an air source as power.

Background

At present, the conventional equipment for discharging solid materials in industrial application is a rotary discharge valve, the rotary discharge valve is required to be connected with equipment through a pipeline during installation, dead zones are formed in the partial pipeline, the partial pipeline is easy to agglomerate and the like, so that the pipeline is blocked, in addition, when the rotary discharge valve stops discharging materials, residual materials in blades are easy to stick to walls, the dead zones are formed, and the discharging capacity of the rotary discharge valve is reduced due to long-term operation.

Disclosure of Invention

The invention aims to solve the technical problem of providing a stable pneumatic ax-bottom discharge valve which can not cause dead areas in equipment and block a discharge channel.

In order to solve the above problems, the present invention provides an axe bottom discharge valve, comprising:

the body is a hollow sealing pipe body and comprises a front valve body and a rear valve body, wherein the front valve body is provided with a discharge port, and the rear valve body is connected with the front valve body;

the valve core is a sealed cavity and is arranged in the body;

the valve rod penetrates through the rear valve body along the axial direction of the body and extends into the valve core, a valve rod gland is arranged at one end of the valve rod, the valve rod gland divides the valve core into a first closed space and a second closed space, a first air inlet channel and a second air inlet channel are arranged in the valve rod, the first air inlet channel and the second air inlet channel are not communicated with each other, the first air inlet channel is communicated with the first closed space, and the second air inlet channel is communicated with the second closed space;

the first air inlet channel is opened, and the gas in the first closed space pushes the valve core to move towards the direction of the discharge port of the front valve body so as to close the discharge port;

and the second gas inlet channel is opened, and the gas in the second closed space pushes the valve core to move towards the direction far away from the discharge port of the front valve body so as to open the discharge port.

In one embodiment, one end of the valve rod is an air inlet end, the other end of the valve rod is an air outlet end, the air inlet end is located outside the rear valve body, the air outlet end is located in the valve core, the air inlet end is provided with a first air inlet and a second air inlet, the air outlet end is provided with a first air outlet and a second air outlet, a first air guide pipe and a second air guide pipe are arranged in the valve rod and are arranged along the axial direction of the valve body and are not communicated with each other, one end of the first air guide pipe is communicated with the first air inlet, the other end of the first air guide pipe is communicated with the first air outlet, one end of the second air guide pipe is communicated with the second air inlet, the other end of the second air guide pipe is communicated with the second air outlet, the first air inlet, the first air guide pipe and the first air outlet form the first air inlet channel, and the second air inlet, the second air, the first air outlet is located in the first closed space, and the second air outlet is located in the second closed space.

In an embodiment, a guide rod is further provided, the guide rod axially penetrates through the body along the body to be connected with the valve core, and the guide rod moves along with the reciprocating motion of the valve core.

In one embodiment, a proximal travel switch and a distal travel switch are provided, the proximal and distal travel switches being mounted adjacent to the path of travel of the guide bar.

In one embodiment, the front valve body and the rear valve body, the front valve body, the rear valve body and the valve core, and the valve core and the valve rod are sealed by O-shaped rings.

In one embodiment, the first air inlet and the second air inlet are both connected with an air source.

In one embodiment, the front valve body and the rear valve body are connected by bolts.

In one embodiment, a nut is mounted on the stem that triggers the distal travel switch or the proximal travel switch.

Compared with the prior art, the invention has the following advantages:

1. the axe bottom discharge valve adopts the air source as the power, the operation cost of the discharge valve is low, and the economic benefit can be improved.

2. The invention has the advantages of safety, stability, low failure rate in long-term operation and capability of reducing the maintenance frequency of the dryer.

3. The invention has simple structure, no rotating part and simple operation and maintenance.

4. The operation state of the discharge valve can be accurately mastered by feeding back the switching state of the discharge valve through the proximity switch.

5. The invention has the advantages of low cost, simple structure and convenient maintenance, and is suitable for various solid materials.

Drawings

Fig. 1 shows the open position of the bottom discharge valve of the present invention.

Fig. 2 shows the closed position of the bottom discharge valve of the present invention.

Wherein the reference numerals are: 100-body; 1-a front valve body; 2-rear valve body; 3-valve cover; 4-a valve stem; 40 a-an air inlet end, 40 b-an air outlet end, 41-a first air guide pipe and 42-a second air guide pipe; 43-first outlet port; 44-second outlet, 45-valve rod gland; 5-valve core; 51-a first enclosed space; 52-a second enclosed space, 6-a second air inlet; 7-a first air inlet; 8-a discharge port; 9-a proximal end travel switch; 10-a remote travel switch; 11-guide bar.

Detailed Description

The detailed description and technical contents of the invention are described as follows with the accompanying drawings: the invention is further described with reference to the following figures 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.

Referring to fig. 1 and 2, the invention relates to a hatchet bottom discharge valve, which comprises: the valve comprises a body 100, a valve core 5 and a valve rod 4, wherein the body 100 is a hollow sealing pipe body and comprises a front valve body 1 and a rear valve body 2, the front valve body 1 is provided with a discharge port 8, the rear valve body 2 is connected with the front valve body 1, and the port of the rear valve body 2 is connected with a valve cover for sealing; the valve core 5 is a sealed cavity and is arranged in the body 100; the valve rod penetrates through the valve cover 3 on the rear valve body 2 along the axial direction of the body 100 and extends into the valve core 5, one end of the valve rod 4 is provided with a valve rod gland 45, the valve rod gland 45 divides the valve core 5 into a first closed space 51 and a second closed space 52, the space sizes of the first closed space 51 and the second closed space 52 are changed along with the reciprocating movement of the valve core, a first air inlet channel and a second air inlet channel are arranged in the valve rod 4, the first air inlet channel and the second air inlet channel are not communicated with each other, the first air inlet channel is communicated with the first closed space 51, and the second air inlet channel is communicated with the second closed space 52; the first air inlet channel is opened, and the gas in the first closed space 51 pushes the valve core to move towards the direction of the discharge port 8 of the front valve body 1 so as to close the discharge port 8; the second air inlet channel is opened, and the gas in the second closed space 52 pushes the valve core to move towards the direction far away from the discharge port 8 of the front valve body 1 so as to open the discharge port 8.

In one embodiment, one end of the valve rod 4 is an air inlet end 40a, the other end is an air outlet end 40b, the air inlet end 40a is located outside the rear valve body 2, the air outlet end 40b is located inside the valve core 5, the air inlet end 40a is provided with a first air inlet and a second air inlet, the air outlet end 40b is provided with a first air outlet 43 and a second air outlet 44, a first air duct 41 and a second air duct 42 are arranged inside the valve rod 4, the first air duct 41 and the second air duct 42 are arranged along the axial direction of the valve body 100 and are not communicated with each other, one end of the first air duct 41 is communicated with the first air inlet, the other end is communicated with the first air outlet 43, one end of the second air duct 42 is communicated with the second air inlet, the other end is communicated with the second air outlet 44, and the first air inlet, the first air duct 41 and the first air outlet 43 form the first air inlet, the second air inlet, the second air duct 42 and the second air outlet 44 form the second air inlet channel, the first air outlet 43 is located in the first enclosed space 51, and the second air outlet 44 is located in the second enclosed space 52.

In an embodiment, a guide rod is further provided, the guide rod passes through the body 100 along the axial direction of the body 100 to be connected with the valve core 5, and the guide rod moves along with the reciprocating motion of the valve core 5.

In one embodiment, a proximal travel switch and a distal travel switch are provided, the proximal and distal travel switches being mounted adjacent to the path of travel of the guide bar.

In one embodiment, the front valve body 1 and the rear valve body 2 are sealed by O-rings, and the rear valve body 2, the front valve body 1 and the valve core 5, and the valve core 5 and the valve rod 4 are sealed by O-rings.

In one embodiment, the first air inlet and the second air inlet are both connected with an air source.

In one embodiment, the front valve body 1 is connected to the rear valve body by bolts.

In one embodiment, a nut is mounted on the stem that activates either the distal travel switch 10 or the proximal travel switch 9.

This preceding valve body 1 is connected on an equipment, the relief valve adopts flange joint with this equipment, simple structure, and is quick detachable, can not cause the blind spot.

The discharge valve is a reciprocating discharge valve, and the discharge valve is powered by an air source; the discharge valve operates as a reciprocating motion; the discharge valve is arranged at the bottom of the equipment; the discharge valve does not cause dead space on the equipment.

As shown in figures 1-2, the discharge valve is connected with the equipment through bolts, the front valve body 1 is connected with the rear valve body through bolts, the rear valve body is connected with the valve cover through bolts, and the valve core 5 can move back and forth in the valve body. Wherein: the guide rod connected with the valve core 5 is used for triggering the travel switch, and the guide rod is provided with a nut which can adjust the position of the triggering travel switch, thereby adjusting the travel of the discharge valve.

Between the front valve body 1 and the rear valve body, between the front valve body and the rear valve body and the valve core 5, and between the valve core 5 and the valve rod 4 are sealed by O-shaped rings.

Referring to fig. 1, fig. 1 shows the hatchet bottom discharge valve of the present invention in an open position. The operation flow when the hatchet bottom discharge valve enters the closed state shown in fig. 2 from the open state shown in fig. 1: communicating a first air inlet 7 of the axe bottom discharge valve with an air source, namely opening a first air inlet channel, sequentially passing through the first air inlet 7 of the valve rod 4, a first air duct 41, a first air outlet 43 enters a first closed space 51, the first closed space 51 pushes the valve core 5 to move towards the discharge port along with the gradual entering of air, at the moment, the space of the first closed space becomes large, namely, the high-pressure air of the first closed space 51 pushes the valve core 5 to move towards one end of the discharge port 8 until the valve core is completely closed, at the moment, a guide rod connected to the valve core 5 is in contact with a near-end travel switch 9, a switch signal is triggered, and the air stops entering the valve rod 4 from the first air inlet 7.

The operation flow when the bottom discharge valve is switched from the closed state shown in fig. 2 to the open state shown in fig. 1 when the discharge valve needs to be opened: communicating the second air inlet 6 with the air source, namely opening the second air inlet channel, the gas passes through the second air inlet 6 of the valve rod 4 in sequence, the second air duct 42, the second air outlet 44 enters the second closed space 52, the second closed space 52 pushes the valve core to move away from the discharge port along with the gradual entering of the gas, at the moment, the space of the second closed space 52 becomes large, namely, the high-pressure gas of the first closed space 51 pushes the valve core 5 to move towards one end of the discharge port 8 until the valve core is completely opened, at the moment, a guide rod connected to the valve core 5 is in contact with a far-point end travel switch, the switching signal is triggered, and the gas stops entering the valve rod 4 from the second air inlet 6.

Compared with the prior art, the invention has the following advantages:

1. the axe bottom discharge valve adopts the air source as the power, the operation cost of the discharge valve is low, and the economic benefit can be improved.

2. The invention has the advantages of safety, stability, low failure rate in long-term operation and capability of reducing the maintenance frequency of the dryer.

3. The invention has simple structure, no rotating part and simple operation and maintenance.

4. The operation state of the discharge valve can be accurately mastered by feeding back the switching state of the discharge valve through the proximity switch.

5. The invention has the advantages of low cost, simple structure and convenient maintenance, and is suitable for various solid materials.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications may be made without departing from the invention, and such modifications are intended to be included within the scope of the invention.