CN211039892U

CN211039892U - Liquid-discharging prevention proportional valve

Info

Publication number: CN211039892U
Application number: CN201922171645.2U
Authority: CN
Inventors: 汤步高
Original assignee: Wuxi Jishang Technology Co ltd
Current assignee: Wuxi Jishang Technology Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-07-17
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a prevent liquid ration valve, including pull sleeve and casing, the inner chamber of pull sleeve and casing is hollow structure, and the fixed bottom face that sets up at the casing of pull sleeve, there is buffer sleeve at casing top face center with the body, buffer sleeve's inner chamber slides and pegs graft and has the regulation pole, the frustum type block rubber of laminating is matchd with frustum type recess inner chamber to the bottom face fixedly connected with of regulation pole, the bottom face of frustum type block rubber is equipped with the sealed piece of pull rubber, and the sealed piece slip joint of pull rubber is at the telescopic inner chamber of pull, the telescopic outer wall top of pull has the fluid-discharge tube radially, the telescopic bottom face center of pull is pegged graft through the pull hole slip and is had the pull pole, the top of pull pole is equipped with the inverted frustum type braced frame who pegs graft with the slip of pull sleeve inner chamber lateral wall. The utility model discloses can guarantee normal use, also guarantee not can reveal in the use, do not influence the normal use of proportional valve.

Description

Liquid-discharging prevention proportional valve

Technical Field

The utility model relates to a proportional valve correlation technique field specifically is a prevent going out liquid proportional valve.

Background

The proportional valve is generally used before product assembly, has a novel valve body that the vice position of friction was regularly carried out, quantitative accurate filling, was paintd the grease at axle, bearing, gear, cam etc. has integrated level height, simple to operate, the maintenance is simple and convenient, degree of automation is high, low in labor strength, stable performance, characteristics such as oiling convenience, current proportional valve in the in-service use in-process, the phenomenon of weeping can appear, influence the normal use of proportional valve, so design and produced a prevention proportional valve here to in order to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent going out liquid proportional valve to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: a liquid-discharge-proof proportional valve comprises a drawing sleeve and a shell, wherein the inner cavities of the drawing sleeve and the shell are of hollow structures, the drawing sleeve is fixedly arranged on the bottom end face of the shell, a buffering sleeve is integrally arranged at the center of the top end face of the shell, an adjusting rod is slidably inserted into the inner cavity of the buffering sleeve, the bottom end face of the adjusting rod slidably penetrates through the central side walls of the upper end face and the lower end face of the shell and extends to the top end of the inner cavity of the drawing sleeve, a frustum-shaped groove communicated with the inner cavity is formed in the center of the bottom end face of the shell, a frustum-shaped rubber block matched and attached with the inner cavity of the frustum-shaped groove is fixedly connected to the bottom end face of the adjusting rod, a drawing rubber sealing block is arranged on the bottom end face of the frustum-shaped rubber block and is slidably clamped in the inner cavity of the drawing sleeve, a liquid discharge pipe is radially connected to the top of the outer, the top of pull pole is equipped with the inverted cone type braced frame who slips grafting with pull sleeve inner chamber lateral wall, and inverted cone type braced frame's outer wall left and right sides bottom has all seted up the pressure release hole.

Preferably, the top face center of the buffer sleeve is provided with a compensation hole communicated with the inner cavity, the top face of the adjusting rod is provided with a sealing disc, the top face center of the sealing disc is vertically provided with an inserting rod which is inserted into the inner cavity of the compensation hole in a sliding mode, and the outer wall of the inserting rod is fixedly sleeved with a rubber sealing ring above the sealing disc.

Preferably, the outer wall of the adjusting rod is sleeved with a first spring located in the inner cavity of the buffering sleeve in a sliding mode, and the top end face of the first spring is connected with the bottom end face of the sealing disc.

Preferably, the outer diameter of the drawing rubber sealing block is equal to that of the inverted frustum-shaped rubber sheet, and the outer diameter of the drawing rubber sealing block is 5mm larger than the inner cavity of the drawing sleeve.

Preferably, the major diameter of the pipe orifice of the liquid discharge pipe is half of the vertical height of the drawn rubber sealing block.

Preferably, an auxiliary drawing block is fixedly arranged at the bottom end of the drawing rod.

Preferably, the opening at the top end of the inverted frustum-shaped supporting frame is provided with a filter screen with meshes of 2mm, the inner side of the inverted frustum-shaped supporting frame is inserted with an inverted frustum-shaped rubber sheet in a sliding manner, the center of the bottom end face of the inverted frustum-shaped rubber sheet is provided with a guide rod, the center of the top end of the pull rod is internally provided with a guide groove inserted with the guide rod in a sliding manner, and the inner cavity of the guide groove is provided with a second spring connected with the bottom end face of the guide rod.

Preferably, the radial outer wall of casing is equipped with the connecting block, the most advanced vertical direction of connecting block is equipped with the fixed plate, the upper and lower both ends of fixed plate all are equipped with the mounting hole.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model relates to a prevent going out liquid proportional valve through pull or jack-up pull pole, can make the proportional valve be used for normal play liquid to use, guarantees simultaneously when not using can not reveal, does not influence the normal use of proportional valve, and is simple and convenient.

2. The utility model discloses, through the mouth of pipe with the fluid-discharge tube big footpath be half of the vertical height of pull rubber seal piece, the mouth of pipe of fluid-discharge tube can be plugged up to the aim at pull rubber seal piece of design like this by utilizing radial lateral wall, can not cause proportional valve exhaust liquid and external dust to cross pull rubber seal piece, and enters into the pull sleeve inner chamber position between pull rubber seal piece and the inverted cone type braced frame, can not influence the normal flowing back of fluid-discharge tube.

Drawings

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

fig. 2 is a cross-sectional view of an embodiment of the present invention;

fig. 3 is an enlarged view of a structure at a position in fig. 2 according to an embodiment of the present invention.

In the figure: 1. a buffer sleeve; 11. adjusting a rod; 12. a frustum-shaped rubber block; 13. drawing a rubber sealing block; 14. a rubber seal ring; 15. a compensation hole; 16. a plug rod; 17. sealing the disc; 18. a first spring; 2. a housing; 21. a fixing plate; 22. connecting blocks; 23. mounting holes; 3. drawing the sleeve; 4. a pull rod; 41. an auxiliary drawing block; 42. a filter screen; 43. inverted frustum type rubber sheet; 44. a second spring; 45. a guide bar; 46. a pressure relief vent; 47. an inverted frustum-shaped support frame; 5. and a liquid discharge pipe.

Detailed Description

In order to facilitate the use, the embodiment of the utility model provides a prevent liquid ration valve. The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-3, the present embodiment provides a liquid-proof proportional valve, which comprises a drawing sleeve 3 and a housing 2, wherein the inner cavities of the drawing sleeve 3 and the housing 2 are both hollow structures, the drawing sleeve 3 is fixedly disposed on the bottom end surface of the housing 2, the center of the top end surface of the housing 2 is integrally provided with a buffer sleeve 1, the inner cavity of the buffer sleeve 1 is slidably inserted with an adjusting rod 11, the bottom end surface of the adjusting rod 11 slidably penetrates through the central side walls of the upper and lower end surfaces of the housing 2 and extends to the top end of the inner cavity of the drawing sleeve 3, the center of the bottom end surface of the housing 2 is provided with a frustum-shaped groove communicated with the inner cavity, the bottom end surface of the adjusting rod 11 is fixedly connected with a frustum-shaped rubber block 12 matched and attached to the inner cavity of the frustum-shaped groove, the bottom end surface of the frustum-shaped rubber block 12 is provided with a drawing rubber sealing block 13, the drawing rubber sealing block 13, the center of the bottom end face of the drawing sleeve 3 is provided with a drawing rod 4 through a drawing hole in a sliding and inserting mode, the top end of the drawing rod 4 is provided with an inverted frustum type supporting frame 47 in a sliding and inserting mode with the side wall of the inner cavity of the drawing sleeve 3, and the bottom ends of the left side and the right side of the outer wall of the inverted frustum type supporting frame 47 are provided with pressure relief holes 46.

The center of the top end face of the buffer sleeve 1 is provided with a compensation hole 15 communicated with the inner cavity, the top end face of the adjusting rod 11 is provided with a sealing disc 17, the center of the top end face of the sealing disc 17 is vertically provided with an insertion rod 16 in sliding insertion connection with the inner cavity of the compensation hole 15, and the outer wall of the insertion rod 16 is fixedly sleeved with a rubber sealing ring 14 positioned above the sealing disc 17; the outer wall of the adjusting rod 11 is sleeved with a first spring 18 positioned in the inner cavity of the buffering sleeve 1 in a sliding manner, and the top end face of the first spring 18 is connected with the bottom end face of the sealing disc 17;

a filter screen 42 with 2mm mesh is arranged at the top end opening of the inverted frustum type supporting frame 47, an inverted frustum type rubber sheet 43 is inserted into the inner side of the inverted frustum type supporting frame 47 in a sliding mode, a guide rod 45 is arranged at the center of the bottom end face of the inverted frustum type rubber sheet 43, a guide groove inserted with the guide rod 45 in a sliding mode is formed in the top end center of the pull rod 4 in a same body, and a second spring 44 connected with the bottom end face of the guide rod 45 is arranged in the inner cavity of the guide groove.

In this embodiment, when in use, the pull rod 4 is pulled downwards, so that the inverted frustum-shaped supporting frame 47 slides downwards along the inner cavity of the pull sleeve 3 along with the pull rod 4, the second spring 44 can jack up the guide rod 45 upwards along the guide groove, so that the inverted frustum-shaped rubber sheet 43 can be always attached to the filter screen 42, thereby ensuring the sealing performance when the pull rod 4 is pulled, the space pressure of the inner cavity of the pull sleeve 3 between the inverted frustum-shaped supporting frame 47 and the pull rubber sealing block 13 is increased along with the pull-down of the pull rod 4, in order to balance the atmospheric pressure, the pull rubber sealing block 13 can drive the adjusting rod 11 to pull down along the shell 2, the sealing disc 17 at the top end of the adjusting rod 11 drives the inserting rod 16 to be separated from the compensation hole 15, the external air enters the inner cavities of the buffer sleeve 1 and the shell 2 through the compensation hole 15, so that the liquid in the inner cavity of the shell 2 is discharged into the inner cavity, and discharged along the discharge pipe 5 for normal use;

when the pulling rod 4 is pushed upwards, because the space pressure of the inner cavity of the pulling sleeve 3 between the inverted frustum-shaped supporting frame 47 and the pulling rubber sealing block 13 is large, in order to balance the atmospheric pressure, the second spring 44 can be compressed into the inner cavity of the guide groove, so that the inverted frustum-shaped rubber sheet 43 is separated from the filter screen 42, the space pressure of the inner cavity of the pulling sleeve 3 between the inverted frustum-shaped supporting frame 47 and the pulling rubber sealing block 13 is the same as the external pressure through the pressure relief hole 46, thus the first spring 18 is reset without external force influence, the sealing disc 17 at the top end of the adjusting rod 11 drives the inserting rod 16 to be inserted into the compensation hole 15, the compensation hole 15 is blocked by the rubber sealing ring 14, the external air cannot enter the inner cavities of the buffer sleeve 1 and the shell 2, so that the liquid in the inner cavity of the shell 2 is discharged into the inner cavity of the pulling sleeve 3 along the frustum-shaped groove at the lower end, the frustum-shaped groove on the bottom end face of the shell 2 can be plugged by the drawing rubber sealing block 13, so that the sealing performance of the whole proportional valve is ensured, the phenomenon of liquid leakage cannot occur, and the method is simple and convenient.

Example 2

Referring to fig. 1-3, a further improvement is made on the basis of embodiment 1:

wherein, the external diameter of the sealed piece of pull rubber 13 equals with the external diameter of inverted frustum type sheet rubber 43, and all greater than the big footpath of pull sleeve 3's inner chamber 5mm, set up like this and can make sealed piece of pull rubber 13 and inverted frustum type sheet rubber 43 respectively slide from top to bottom at pull sleeve 3 inner chamber, and when sliding, sealed piece of pull rubber 13 and inverted frustum type sheet rubber 43 can with the laminating of 3 inner chamber lateral walls of pull sleeve, can not cause the poor problem of leakproofness.

The pipe orifice major diameter of fluid-discharge tube 5 is half of the vertical height of pull rubber seal piece 13, and the design aim at pull rubber seal piece 13 can utilize radial lateral wall to plug up the mouth of pipe of fluid-discharge tube 5 like this, can not cause ration valve exhaust liquid and external dust to cross pull rubber seal piece 13, and enter into the pull sleeve 3 inner chamber position between pull rubber seal piece 13 and the inverted frustum type braced frame 47, can not influence the normal flowing back of fluid-discharge tube 5.

The bottom end of the drawing rod 4 is fixedly provided with an auxiliary drawing block 41, and the drawing rod 4 is convenient to draw by arranging the auxiliary drawing block 41.

The radial outer wall of casing 2 is equipped with connecting block 22, and connecting block 22's most advanced vertical direction is equipped with fixed plate 21, and the upper and lower both ends of fixed plate 21 all are equipped with mounting hole 23, run through fixed plate 21's mounting hole 23 through the bolt, can carry out fixed mounting to overall structure to in order to satisfy proportional valve's normal use.

In the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prevent liquid ration valve, includes pull sleeve (3) and casing (2), its characterized in that: the inner cavities of the drawing sleeve (3) and the shell (2) are both of a hollow structure, the drawing sleeve (3) is fixedly arranged on the bottom end face of the shell (2), the top end face center of the shell (2) is integrally provided with the buffer sleeve (1), the inner cavity of the buffer sleeve (1) is inserted with the adjusting rod (11) in a sliding manner, the bottom end face of the adjusting rod (11) penetrates through the central side walls of the upper end face and the lower end face of the shell (2) in a sliding manner and is extended to the top end of the inner cavity of the drawing sleeve (3), the center of the bottom end face of the shell (2) is provided with a frustum-shaped groove communicated with the inner cavity, the bottom end face of the adjusting rod (11) is fixedly connected with a frustum-shaped rubber block (12) matched and attached with the inner cavity of the frustum-shaped groove, the bottom end face of the frustum-shaped rubber block (12) is provided with a drawing rubber sealing block (13), and, the liquid discharge pipe (5) is radially connected to the top of the outer wall of the drawing sleeve (3), a drawing rod (4) is inserted into the center of the bottom end face of the drawing sleeve (3) in a sliding mode through a drawing hole, an inverted frustum type supporting frame (47) which is inserted into the inner cavity side wall of the drawing sleeve (3) in a sliding mode is arranged at the top end of the drawing rod (4), and pressure release holes (46) are formed in the bottoms of the left side and the right side of the outer wall of the inverted frustum type supporting frame (47).

2. A liquid-proof dosing valve as claimed in claim 1, characterised in that: the top face center of buffering sleeve (1) is seted up compensation hole (15) with the inner chamber intercommunication, the top face of adjusting pole (11) is equipped with sealed dish (17), the top face center of sealed dish (17) is equipped with perpendicularly and compensates peg graft pole (16) that hole (15) inner chamber slided and peg graft, and peg graft pole (16) outer wall fixed cup joint rubber seal (14) that are located sealed dish (17) top.

3. A liquid-proof dosing valve as claimed in claim 2, characterised in that: the outer wall of the adjusting rod (11) is sleeved with a first spring (18) located in the inner cavity of the buffering sleeve (1) in a sliding mode, and the top end face of the first spring (18) is connected with the bottom end face of the sealing disc (17).

4. A liquid-proof dosing valve as claimed in claim 1, characterised in that: the outer diameter of the drawing rubber sealing block (13) is equal to that of the inverted frustum-shaped rubber sheet (43), and the outer diameters of the drawing rubber sealing block and the inverted frustum-shaped rubber sheet are 5mm larger than the inner cavity of the drawing sleeve (3).

5. A liquid-proof dosing valve as claimed in claim 1, characterised in that: the major diameter of the pipe orifice of the liquid discharge pipe (5) is half of the vertical height of the drawing rubber sealing block (13).

6. A liquid-proof dosing valve as claimed in claim 1, characterised in that: an auxiliary drawing block (41) is fixedly arranged at the bottom end of the drawing rod (4).

7. A liquid-proof dosing valve as claimed in claim 1, characterised in that: the utility model discloses a pull rod, including pull rod, guide bar (45), inverted frustum type braced frame (47), the top opening part of inverted frustum type braced frame (47) is equipped with filter screen (42) that the mesh is 2mm, the inboard slip grafting of inverted frustum type braced frame (47) has inverted frustum type sheet rubber (43), the bottom face center of inverted frustum type sheet rubber (43) is equipped with guide bar (45), the top center of pull rod (4) is together sunken to have the guide way of pegging graft with guide bar (45) slip, and the guide way inner chamber is equipped with second spring (44) of being connected with guide bar (45) bottom face.

8. A liquid-proof dosing valve as claimed in claim 1, characterised in that: the radial outer wall of casing (2) is equipped with connecting block (22), the most advanced vertical direction of connecting block (22) is equipped with fixed plate (21), the upper and lower both ends of fixed plate (21) all are equipped with mounting hole (23).