CN218582400U

CN218582400U - Lever type stop valve

Info

Publication number: CN218582400U
Application number: CN202222575233.7U
Authority: CN
Inventors: 吕萍; 王学冬; 郑义
Original assignee: Kaqiu Jiangsu Biotechnology Co ltd
Current assignee: Kaqiu Jiangsu Biotechnology Co ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-03-07
Anticipated expiration: 2032-09-28

Abstract

The utility model discloses a lever stop valve, including the valve body, the valve body includes the electro-magnet, lever fixing base and valve block, and the electro-magnet is fixed in the left side of lever fixing base through first fix with screw, and the valve block is fixed in the right side of lever fixing base through the second fix with screw, is provided with the lever subassembly in the lever fixing base, and the inside of valve block is provided with the mounting groove, has set gradually screw cap subassembly, case subassembly, spring holder and spring in the mounting groove from top to bottom, and the bottom fixed connection of spring is on the diapire of mounting groove, the bottom fixed connection spring top of spring holder. The utility model discloses axial thrust has been increased for holistic space occupies the reduction, has strengthened the commonality of stop valve, and low cost.

Description

Lever type stop valve

Technical Field

The utility model belongs to the technical field of the stop valve, concretely relates to lever stop valve.

Background

The two-position two-way stop valve of common various medical industry in modern equipment for control pipeline medium circulation and block the function, the drive mode that current stop valve commonly used utilizes the direct push valve core of electro-magnet ejector pin usually, often has certain requirement to the size of the pressure of pipeline, and when pipeline pressure is very big, often need the axial force of electro-magnet bigger, just so can withstand the valve core and hold back the high pressure. The general stop valve in market increases the axial force only through the specification of increase electro-magnet, can lead to the electro-magnet to greatly occupy the most space of product like this, and different stop valve models are then selected to different pressure moreover, and the size is different, and the commonality is not strong, in view of this, necessarily improves traditional stop valve.

Disclosure of Invention

For solving prior art's not enough, the utility model aims to provide a lever stop valve increases axial thrust for holistic space occupies the reduction, strengthens the commonality of stop valve, and low cost.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a lever stop valve, includes the valve body, the valve body includes the electro-magnet, lever fixing base and valve piece, the left side of lever fixing base is fixed in through first fix with screw to the electro-magnet, the right side of lever fixing base is fixed in through the second fix with screw to the valve piece, be provided with the lever subassembly in the lever fixing base, the inside of valve piece is provided with the mounting groove, screw cap subassembly, case subassembly, spring holder and spring have set gradually from top to bottom in the mounting groove, the bottom fixed connection of spring is on the diapire of mounting groove, the bottom fixed connection spring top of spring holder.

Preferably, aforementioned lever subassembly includes lever, rotation axis and spacing end cap, and lever fixing base and lever are L type structure, and the inside of lever fixing base is provided with L type cavity, and the top outer end of lever is passed through the rotation axis and is rotated and install in L type cavity, and the lever uses the rotation axis as the center rotation, and the top of lever fixing base is provided with spacing hole, and during spacing end cap inserted spacing hole, its inner end compressed tightly the rotation axis.

Preferably, the electromagnet is internally provided with an armature, the outer end of the armature contacts the left side of the side edge of the lever, and the lever can be pushed to rotate through the armature.

Preferably, the threaded cap assembly comprises a threaded cap and a roller pin, the top end of the mounting groove penetrates through the top of the valve block, the threaded cap is in threaded connection with the inside of the mounting groove, the top of the threaded cap is flush with the top of the valve block, a first groove and a second groove are sequentially formed in the bottom of the threaded cap from outside to inside, and the bottom of the second groove is communicated with the first groove.

Preferably, the top and the lower part of the second groove are respectively provided with a heightening sheet and a pressing pad, the needle roller sequentially penetrates through the pressing pad and the heightening sheet from bottom to top to extend above the threaded cap, and the top end of the needle roller contacts the bottom of the top edge of the lever.

Preferably, a first O-shaped ring is further arranged between the lever fixing seat and the electromagnet, and second O-shaped rings are arranged between the heightening sheet and the pressing gasket and in the first groove.

Preferably, the valve core assembly comprises a first valve core, a second valve core, a third valve core and a needle roller top block, the first valve core is arranged at the top of the second valve core, the third valve core is movably inserted into the first valve core and the second valve core, the bottom end of the third valve core penetrates through the top of the second valve core and is fixedly connected with the spring seat, the needle roller top block is arranged at the top end inside the third valve core, and the top end of the needle roller top block is in contact with the bottom end of the needle roller.

Preferably, the first valve core and the second valve core are sleeved with third O-rings.

Preferably, an annular protrusion portion is disposed in a middle portion of the third valve element, an annular groove portion matched with the annular protrusion portion is disposed inside the second valve element, when the third valve element is in an initial state, a flow channel is formed between the annular protrusion portion and the annular groove portion, and when the third valve element is in a pressing-down state, the annular protrusion portion and the annular groove portion are tightly attached to each other, and the flow channel is blocked.

Preferably, the right end of the valve body is provided with an input port and an output port, and the input port and the output port are both communicated with the flow channel.

The utility model discloses an useful part lies in: the utility model increases the axial thrust through the lever component without changing the size of the electromagnet, so that the overall space occupation is reduced, and the low-pressure, medium-pressure and high-pressure environments can be applied, thereby enhancing the universality of the stop valve; the cost is low and is much lower than the cost for replacing the electromagnet.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view taken along plane A-A of FIG. 1;

FIG. 3 is a schematic structural view of the lever fixing base of the present invention;

FIG. 4 isbase:Sub>A cross-sectional view taken along plane A-A of FIG. 3;

FIG. 5 is a schematic structural view of a threaded cap assembly according to the present invention;

fig. 6 is a schematic structural view of a valve core assembly according to the present invention;

fig. 7 is a right side view of the present invention;

fig. 8 is a partially enlarged schematic view of the valve core assembly of the present invention.

The meaning of the reference symbols in the figures: 1. the electromagnetic valve comprises an electromagnet 1.1, an armature iron 2, a lever fixing seat 3, a valve block 3.1, a mounting groove 4, a first screw 5, a second screw 6, a spring seat 7, a spring 8, a lever 9, a rotating shaft 10, a limiting plug 11, a threaded cap 11.1, a first groove 11.2, a second groove 12, a needle roller 13, a raising piece 14, a pressing gasket 15, a first O-shaped ring 16, a second O-shaped ring 17, a first valve core 18, a second valve core 18.1, an annular groove portion 19, a third valve core 19.1, an annular bulge portion 20, a top block 21, a third O-shaped ring 22, a needle roller 23 and an output port.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, the utility model discloses an 8 formula stop valves of lever, which comprises a valve body, the valve body includes electro-magnet 1, lever fixing base 2 and valve block 3, electro-magnet 1 is fixed in the left side of lever fixing base 2 through first screw 4, valve block 3 is fixed in the right side of lever fixing base 2 through second screw 5, be provided with the lever subassembly among the lever fixing base 2, the inside of valve block 3 is provided with mounting groove 3.1, screw cap subassembly has set gradually from top to bottom in the mounting groove 3.1, the case subassembly, spring 7 seat 6 and spring 7, the bottom fixed connection of spring 7 is on the diapire of mounting groove 3.1, the bottom fixed connection spring 7 top of spring 7 seat 6.

Referring to fig. 3 and 4, the lever assembly includes a lever 8, a rotating shaft 9 and a limiting plug 10, the lever fixing seat 2 and the lever 8 are both of an L-shaped structure, an L-shaped cavity is formed in the inside of the lever fixing seat 2, the top outer end of the lever 8 is installed in the L-shaped cavity in a rotating mode through the rotating shaft 9, the lever 8 rotates by taking the rotating shaft 9 as the center, a limiting hole is formed in the top of the lever fixing seat 2, the limiting plug 10 is inserted into the limiting hole, the rotating shaft 9 is tightly pressed at the inner end of the limiting plug, and a first O-ring 15 is further arranged between the lever fixing seat 2 and the electromagnet 1. During installation, at first put into lever fixing base 2 with lever 8 and roughly fix a position, beat rotation axis 9 with the rubber hammer and install lever 8, lever 8 can rotate on rotation axis 9, later beat into spacing end cap 10, prevent rotation axis 9 axial float, then pack into lever fixing base 2's recess with first O type circle 15, compress tightly in 1 terminal surface of electro-magnet through first screw 4 and play axial seal's effect.

An armature 1.1 is arranged in the electromagnet 1, the outer end of the armature 1.1 contacts the left side of the side edge of the lever 8, and the lever 8 can be pushed to rotate through the armature 1.1.

Referring to fig. 5, the screw cap assembly includes a screw cap 11 and a needle roller 12, the top end of the mounting groove 3.1 penetrates through the top of the valve block 3, the screw cap 11 is in threaded connection with the inside of the mounting groove 3.1, the top of the screw cap 11 is flush with the top of the valve block 3, a first groove 11.1 and a second groove 11.2 are sequentially arranged from outside to inside at the bottom of the screw cap 11, and the bottom of the second groove 11.2 is communicated with the first groove 11.1. The top and the lower part of the second groove 11.2 are respectively provided with a heightening sheet 13 and a pressing gasket 14, the needle roller 12 sequentially penetrates through the pressing gasket 14 and the heightening sheet 13 from bottom to top to extend to the upper part of the threaded cap 11, and the top end of the needle roller contacts the bottom of the top edge of the lever 8. A second O-ring 16 is arranged between the raising plate 13 and the pressing washer 14 and in the first groove 11.1. During installation, the threaded cap 11, the heightening piece 13 and the second O-shaped ring 16 are assembled in sequence, the roller pin 12 sequentially penetrates through the second O-shaped ring 16 and the heightening piece 13 from bottom to top, and the pressing gasket 14 is pressed into the threaded cap 11 in the chamfering direction.

Referring to fig. 6, the valve core assembly includes a first valve core 17, a second valve core 18, a third valve core 19 and a needle top block 20, the first valve core 17 is disposed on the top of the second valve core 18, the third valve core 19 is movably inserted into the first valve core 17 and the second valve core 18, and the bottom end of the third valve core passes through the second valve core 18 and is fixedly connected with the top of the spring 7 seat 6, and the needle top block 20 is disposed on the top end inside the third valve core 19, and the top end of the needle top block contacts the bottom end of the needle 12. The first valve core 17 and the second valve core 18 are sleeved with third O-rings 21. When the valve core is installed, the third O-ring 21 is sleeved on the second valve core 18, the third valve core 19 and the roller pin jacking block 20 are sequentially placed, the third valve core 19 and the roller pin jacking block 20 are in interference connection, then the first valve core 17 sleeved with the third O-ring 21 is inserted into the second valve core 18, and the first valve core 17 and the second valve core are in clearance fit.

Referring to fig. 6 and 8, an annular protrusion portion 19.1 is disposed in the middle of the third valve element 19, an annular groove portion 18.1 matched with the annular protrusion portion 19.1 is disposed inside the second valve element 18, a flow passage is formed between the annular protrusion portion 19.1 and the annular groove portion 18.1 when the third valve element 19 is in an initial state, and the annular protrusion portion 19.1 and the annular groove portion 18.1 are tightly attached to each other and the flow passage is blocked when the third valve element 19 is in a pressed-down state.

Referring to fig. 7, the right end of the valve body is provided with an input port 22 and an output port 23, and both the input port 22 and the output port 23 communicate with the flow passage.

In order to better illustrate the present invention, the following description specifically describes the working process thereof:

under the action of 24v direct current, the electromagnet 1 generates axial thrust, the armature 1.1 in the electromagnet 1 pushes the lever 8 to generate larger force to push the needle roller 12, the needle roller 12 pushes the needle roller top block 20 and the third valve core 19 downwards, so that the annular convex part 19.1 of the third valve core 19 and the annular groove part 18.1 of the second valve core 18 are pressed (namely, the surface A and the surface B in fig. 8 are pressed), the flow channel is blocked, the input port 22 and the output port 23 are blocked, and the function of closing a passage is realized; when the electromagnet 1 is in a power-off condition, the needle roller 12, the needle roller top block 20 and the third valve core 19 are lifted to the initial position during assembly under the action of the spring 7 and the spring 7 seat 6, so that the annular convex part 19.1 of the third valve core 19 and the annular groove part 18.1 of the second valve core 18 are separated (i.e. the surface B and the surface A are separated in the figure 8), the flow passage is in a smooth state, and the communication between the input port 22 and the output port 23 is realized.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation modes fall within the protection scope of the present invention.

Claims

1. The lever type stop valve comprises a valve body and is characterized in that the valve body comprises an electromagnet (1), a lever fixing seat (2) and a valve block (3), the electromagnet (1) is fixed to the left side of the lever fixing seat (2) through a first screw (4), the valve block (3) is fixed to the right side of the lever fixing seat (2) through a second screw (5), a lever assembly is arranged in the lever fixing seat (2), a mounting groove (3.1) is formed in the valve block (3), a threaded cap assembly, a valve core assembly, a spring seat (6) and a spring (7) are sequentially arranged in the mounting groove (3.1) from top to bottom, the bottom end of the spring (7) is fixedly connected to the bottom wall of the mounting groove (3.1), and the bottom end of the spring seat (6) is fixedly connected to the top end of the spring (7).

2. A lever type stop valve as claimed in claim 1, wherein the lever assembly comprises a lever (8), a rotating shaft (9) and a limiting plug (10), the lever fixing seat (2) and the lever (8) are both L-shaped structures, an L-shaped cavity is formed inside the lever fixing seat (2), the outer end of the top of the lever (8) is rotatably installed in the L-shaped cavity through the rotating shaft (9), the lever (8) rotates around the rotating shaft (9), a limiting hole is formed in the top of the lever fixing seat (2), the limiting plug (10) is inserted into the limiting hole, and the rotating shaft (9) is tightly pressed by the inner end of the limiting plug.

3. A lever-type shut-off valve as claimed in claim 2, characterised in that the electromagnet (1) is internally provided with an armature (1.1), the outer end of the armature (1.1) contacting the left side of the lever (8).

4. A lever type stop valve as claimed in claim 2, wherein the screw cap assembly comprises a screw cap (11) and a roller pin (12), the top end of the mounting groove (3.1) penetrates through the top of the valve block (3), the screw cap (11) is screwed above the inside of the mounting groove (3.1), the top of the screw cap (11) is flush with the top of the valve block (3), the bottom of the screw cap (11) is provided with a first groove (11.1) and a second groove (11.2) from outside to inside in sequence, and the bottom of the second groove (11.2) is communicated with the first groove (11.1).

5. A lever type stop valve as claimed in claim 4, wherein the top and lower parts of the second groove (11.2) are respectively provided with a raising piece (13) and a pressing pad (14), the needle roller (12) passes through the pressing pad (14) and the raising piece (13) from bottom to top to extend above the screw cap (11), and the top end of the needle roller contacts the bottom of the top edge of the lever (8).

6. A lever type stop valve as claimed in claim 5, characterised in that a first O-ring (15) is arranged between the lever fixing seat (2) and the electromagnet (1), and a second O-ring (16) is arranged between the raising sheet (13) and the pressing gasket (14) and in the first groove (11.1).

7. A lever type cut-off valve as claimed in claim 5, wherein the spool assembly comprises a first spool (17), a second spool (18), a third spool (19) and a needle top block (20), the first spool (17) is arranged on the top of the second spool (18), the third spool (19) is movably inserted into the first spool (17) and the second spool (18), the bottom end of the third spool passes through the top of the second spool (18) and is fixedly connected with the spring seat (6), and the needle top block (20) is arranged on the top end of the inside of the third spool (19), and the top end of the third spool contacts with the bottom end of the needle (12).

8. A lever type shut-off valve as claimed in claim 7 characterised in that the first spool (17) and the second spool (18) are fitted with a third O-ring (21).

9. A lever type stop valve as claimed in claim 7, wherein an annular protrusion (19.1) is provided at the middle of the third valve core (19), an annular groove (18.1) matched with the annular protrusion (19.1) is provided inside the second valve core (18), a flow passage is formed between the annular protrusion (19.1) and the annular groove (18.1) when the third valve core (19) is in the initial state, and the annular protrusion (19.1) and the annular groove (18.1) are tightly attached and the flow passage is blocked when the third valve core (19) is in the pressing-down state.

10. A lever type shut-off valve as claimed in claim 9, wherein the right end of the valve body is provided with an inlet port (22) and an outlet port (23), the inlet port (22) and the outlet port (23) both communicating with the flow passage.