CN210949933U - Gate valve screw rod - Google Patents
Gate valve screw rod Download PDFInfo
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- CN210949933U CN210949933U CN201922256455.0U CN201922256455U CN210949933U CN 210949933 U CN210949933 U CN 210949933U CN 201922256455 U CN201922256455 U CN 201922256455U CN 210949933 U CN210949933 U CN 210949933U
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Abstract
The utility model provides a gate valve lead screw belongs to valve manufacturing technical field. The gate valve solves the problems that the existing gate valve screw cannot close the control valve in time, and the valve core and the flow limiting hole are matched to leak easily. This gate valve lead screw includes fast lead screw and accommodate the lead screw, has the regulation hole with the axial setting on the fast lead screw, and accommodate the lead screw with the axial wears to locate in the regulation hole of fast lead screw, accommodate the lead screw's lower extreme link firmly be used for with the valve body inner wall support to lean on the sealed case of cooperation, be provided with between case and the fast lead screw when the sealed effect of case is on the valve body inner wall, can adjust the case and support with the valve body inner wall and lean on the adjusting device of effort size. The utility model has reasonable and simple structure design; the valve body can be closed in time by the aid of the quick-rotating screw rod, the valve core and the valve body are in sealing fit by the aid of the adjusting device, a pressurizing effect is achieved, the valve core is not leaked between the valve body and the valve core even if the valve core is slightly abraded when the valve is used for a long time, and the service life of the valve is long.
Description
Technical Field
The utility model belongs to the technical field of the valve is made, a gate valve lead screw is related to.
Background
The control valve is also called as a valve, is a control part in a fluid conveying system, has the functions of diversion, interception, regulation, throttling, backflow prevention, diversion or overflow pressure relief and the like, can be used for controlling various types of fluid activities such as air, water, steam, various corrosive chemical media, slurry, liquid metal, radioactive substances and the like, but the existing control gate valve always leaks liquid, so that equipment needs to be frequently replaced, and huge economic loss is caused.
Most throttle valves are used at present, and are closed slowly when a control valve is closed; for example, chinese patent literature discloses a water cut-off protection throttle valve [ application No.: 201721530669.7, respectively; authorization notice number: CN207454798U ], which comprises a throttle valve main body, a hand wheel, a water pressure sensor, an inflow port and a controller, wherein the throttle valve main body comprises a top cover, a main cover and a bottom cover, the top cover is fixed above the main cover, the bottom cover is arranged below the main cover, the hand wheel is arranged on the top of the top cover, the hand wheel is connected with a connecting rod, the connecting rod passes through the connecting sleeve, the end of the connecting rod is connected with a valve core, the bottom of the valve core is connected with a spring, a flow limiting rod is fixed on the side edge of the valve core, the water pressure sensor is arranged at the bottom of the valve core, the inflow port is arranged on the left side of the main cover, and the right side of the main cover is provided with an outflow port, a fixed plate is arranged in the inflow port and the outflow port, a flow limiting.
In the structure, the valve core and the flow limiting hole are matched to realize low flow limiting speed, so that the control valve cannot be closed in time; the valve core and the limiting hole are matched to limit pressure to be certain, the effect of pressurization is not achieved, when the throttle valve is used for a long time, the valve core and the limiting hole are matched to easily leak, and the service life of the throttle valve is shortened.
Disclosure of Invention
The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, can in time close the choke valve, during case and the valve body sealing fit, have the pressure boost effect, can not the seepage between case and the valve body, long service life's gate valve lead screw.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides a gate valve lead screw, includes fast lead screw and accommodate the lead screw, fast lead screw on have the regulation hole with the axial setting, accommodate the lead screw with the axial wear to locate in the regulation hole of fast lead screw, its characterized in that, accommodate the lead screw the lower extreme link firmly be used for with the valve body inner wall support to lean on the sealed case of cooperation, case and fast lead screw between be provided with when the case seals and act on the valve body inner wall, can adjust the case and support with the valve body inner wall and lean on the adjusting device of effort size.
This gate valve lead screw is mainly provided with adjusting device between case and fast rotatory lead screw, supports to the effort size through the adjustable case of adjusting device and valve body inner wall, when making case and valve body seal fit, has the pressure boost effect, and convenient to use causes case and valve body seal fit structure more stable.
In the gate valve screw rod, the valve core is in a strip block shape, the upper end face of the valve core is provided with a connecting column which is in an integrated structure with the valve core, the lower end face of the adjusting screw rod is provided with a connecting groove which is arranged in the same axial direction, and the connecting column of the valve core is correspondingly and fixedly connected with the connecting groove of the adjusting screw rod. The axial relative displacement matching of the adjusting screw rod and the quick-rotating screw rod is not interfered.
In foretell a gate valve lead screw, the spliced pole on axial interval distribution have the connecting hole that is radial setting, the cell wall of spread groove on have the screens hole of radial setting, when the spliced pole is in the spread groove, and this connecting hole and the relative distribution of the screens hole that corresponds, the spliced pole wear to locate connecting hole, screens hole through the round pin axle and link firmly it in the spread groove with it. The valve core and the adjusting screw rod are stably connected, and the valve core can be effectively prevented from being separated from the adjusting screw rod.
In foretell gate valve lead screw, adjusting device include that the regulation hole inner wall is provided with the internal thread, adjusting screw's outer wall on be provided with the external screw thread, the internal thread of fast rotatory lead screw and adjusting screw's external screw thread screw fit, when adjusting screw passed through the screw mode and shifted downwards on fast rotatory lead screw axial, this adjusting screw drives the case and moves down the middle part that increases the case and support with the valve body inner wall and lean on the effort, case and fast rotatory lead screw between still be provided with the direction supercharging device that enables the both ends of case and the inner wall of valve body and support and lean on the effort increase. When the adjusting screw rod axially moves downwards, the middle part of the valve core deforms, and the valve core is abutted against the pressurization for one gear and is abutted against the pressurization for a small time.
In foretell gate valve lead screw, direction supercharging device including support and lean on the cover, the lower extreme that supports to support the cover have and be the massive portion of supporting of bar, when supporting to support to link firmly in the lower extreme of soon revolving the lead screw, and this case supports with the portion of supporting that supports to support and lean on the cooperation by the cover, the middle part position of the lower terminal surface that supports to have the guide way of the font of falling V, when accommodate the lead screw passed through the screw mode on the soon revolving the lead screw axial upwards shift, this accommodate the lead screw drives the case and shifts up and cause the middle part of case and guide way to support to lead to the case deformation by the cooperation, and the both ends of increase case and the supporting effort of. When the adjusting screw rod axially moves upwards, the two ends of the valve core deform, and the two ends of the valve core are abutted against the pressurization and are abutted against the pressurization to be larger for two gears.
In the gate valve screw rod, the valve core is embedded with a metal elastic strip in the same length direction, and the middle position of the lower end face of the valve core is also provided with an inverted V-shaped displacement. The purpose of this arrangement is to assist in the pressurization of the deformation of the spool.
In foretell gate valve lead screw, the inner wall that leans on the cover on be provided with the internal thread, the outer wall of the lower extreme of fast spiral lead screw on be provided with the external screw thread, the internal thread screwed connection that leans on the cover on the external screw thread on the outer wall of the lower extreme of fast spiral lead screw. The purpose that sets up like this is conveniently to support to lean on the cover and the lower extreme high-speed joint of soon lead screw, convenient assembling.
In the gate valve screw rod, the upper end part of the outer wall of the quick-rotating screw rod is provided with a quick-rotating external thread section, and the outer wall of the quick-rotating screw rod below the quick-rotating external thread section is also embedded with a sealing guide sleeve. The purpose through setting up sealed guide pin bushing can guarantee the sealed validity of fast rotatory lead screw and valve body.
Compared with the prior art, the gate valve lead screw has the advantages that: the structure is reasonable and simple; the valve body can be closed in time by the aid of the quick-rotating screw rod, the valve core and the valve body are in sealing fit by the aid of the adjusting device, a pressurizing effect is achieved, the valve core is not leaked between the valve body and the valve core even if the valve core is slightly abraded when the valve is used for a long time, and the service life of the valve is long.
Drawings
Fig. 1 is a schematic sectional structure view of the gate valve lead screw.
In the figure, 1, a quick-rotating screw rod; 2. adjusting the screw rod; 3. a valve core; 4. connecting columns; 5. a pin shaft; 6. an abutting sleeve; 7. an abutting portion; 8. a guide groove; 9. a metal elastic strip; 10. shape displacement; 11. a fast-spinning external thread section; 12. and sealing the guide sleeve.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, the gate valve lead screw mainly comprises a fast-spinning lead screw 1 and an adjusting lead screw 2, wherein the fast-spinning lead screw 1 is provided with adjusting holes which are coaxially arranged, the adjusting lead screw 2 coaxially penetrates through the adjusting holes of the fast-spinning lead screw 1, and the lower end of the adjusting lead screw 2 is fixedly connected with a valve core 3 which is used for being abutted against the inner wall of a valve body to be matched and sealed; during actual manufacturing, the specific fixed connection mode of the lower ends of the valve core 3 and the adjusting screw rod 2 is as follows: the valve core 3 is in a strip block shape, the upper end face of the valve core 3 is provided with a connecting column 4 which is in an integrated structure with the valve core 3, the lower end face of the adjusting screw rod 2 is provided with a connecting groove which is arranged in the same axial direction, and the connecting column 4 of the valve core 3 is correspondingly and fixedly connected with the connecting groove of the adjusting screw rod 2; specifically speaking: the connecting column 4 is provided with connecting holes which are arranged in the radial direction at intervals in the axial direction, the wall of the connecting groove is provided with clamping holes which are arranged in the radial direction, when the connecting column 4 is positioned in the connecting groove, the connecting holes and the corresponding clamping holes are distributed oppositely, and the connecting column 4 is arranged in the connecting holes and the clamping holes in a penetrating mode through the pin shaft 5 and fixedly connected in the connecting groove.
An adjusting device which can adjust the abutting force of the valve core 3 and the inner wall of the valve body when the valve core 3 acts on the inner wall of the valve body in a sealing way is arranged between the valve core 3 and the quick-rotating screw rod 1.
In actual manufacturing, the specific implementation of the adjusting device is as follows: be provided with the internal thread on the regulation hole inner wall, be provided with the external screw thread on accommodate the lead screw 2's the outer wall, the internal thread of fast lead screw 1 and accommodate the lead screw 2's external screw thread screw fit, when accommodate the lead screw 2 through the axial displacement downwards on fast lead screw 1 of screw mode, this accommodate the lead screw 2 drives the middle part that case 3 moved down and increases case 3 and supports with the valve body inner wall and lean on the effort, still be provided with between case 3 and the fast lead screw 1 and enable the both ends of case 3 and the inner wall of valve body and support the direction supercharging device that the effort increases.
In actual manufacturing, the guide supercharging device is implemented by the following specific modes: mainly by leaning on the cover 6 to constitute, the lower extreme that leans on cover 6 has and is the cubic support portion 7 of bar, when leaning on cover 6 to link firmly in the lower extreme of fast spinning rod 1, and this case 3 supports the cooperation with the support portion 7 that leans on cover 6, the middle part position of the lower terminal surface that leans on portion 7 has the guide way 8 of the font of falling V, when accommodate the lead screw 2 through the spiral mode on fast spinning rod 1 axial rebound, this accommodate the lead screw 2 drives case 3 and moves up and causes the middle part of case 3 and guide way 8 to support and lead to case 3 deformation by the cooperation, and the both ends of increase case 3 and the supporting effort of leaning on of the inner wall of valve body.
In order to enable the valve core 3 to deform more quickly and stably, during actual manufacturing, a metal elastic strip 9 is embedded in the valve core 3 in the same length direction, and a deformation position 10 in an inverted V shape is further arranged in the middle of the lower end face of the valve core 3.
In actual design, the specific connection mode of the lower ends of the abutting sleeve 6 and the quick-rotating screw rod 1 is as follows: should support to be provided with the internal thread on the inner wall of cover 6, be provided with the external screw thread on the outer wall of the lower extreme of fast spiral rod 1, support to support on the external screw thread of the internal thread screwed connection of cover 6 on the outer wall of the lower extreme of fast spiral rod 1. In practical application, the upper end of the outer wall of the fast-screwing screw rod 1 is provided with a fast-screwing external thread section 11, and a sealing guide sleeve 12 is embedded on the outer wall of the fast-screwing screw rod 1 below the fast-screwing external thread section 11.
Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (8)
1. The utility model provides a gate valve lead screw, includes fast lead screw (1) and accommodate the lead screw (2), fast lead screw (1) on have a regulation hole with the axial setting, accommodate the lead screw (2) with the axial wear to locate in the regulation hole of fast lead screw (1), its characterized in that, the lower extreme of accommodate the lead screw (2) link firmly and be used for supporting with the valve body inner wall and lean on case (3) that the cooperation is sealed, case (3) and fast lead screw (1) between be provided with when case (3) seal action valve body inner wall, can adjust case (3) and valve body inner wall and lean on the adjusting device of effort size.
2. The gate valve screw rod according to claim 1, wherein the valve core (3) is in a strip block shape, the upper end surface of the valve core (3) is provided with a connecting column (4) which is in an integrated structure with the valve core (3), the lower end surface of the adjusting screw rod (2) is provided with a connecting groove which is coaxially arranged, and the connecting column (4) of the valve core (3) is correspondingly and fixedly connected with the connecting groove of the adjusting screw rod (2).
3. The gate valve screw rod according to claim 2, wherein the connecting column (4) is provided with radially arranged connecting holes at intervals in the axial direction, the wall of the connecting groove is provided with radially arranged clamping holes, when the connecting column (4) is positioned in the connecting groove, the connecting holes are distributed opposite to the corresponding clamping holes, and the connecting column (4) is inserted into the connecting holes and the clamping holes through the pin shaft (5) to be fixedly connected in the connecting groove.
4. The gate valve screw rod according to claim 3, wherein the adjusting device comprises an inner thread arranged on the inner wall of the adjusting hole, an outer thread arranged on the outer wall of the adjusting screw rod (2), the inner thread of the quick-rotating screw rod (1) is in screw fit with the outer thread of the adjusting screw rod (2), when the adjusting screw rod (2) axially and downwards moves on the quick-rotating screw rod (1) in a screw mode, the adjusting screw rod (2) drives the valve core (3) to downwards move to increase the abutting force between the middle part of the valve core (3) and the inner wall of the valve body, and a guide pressurizing device capable of enabling the two ends of the valve core (3) and the inner wall of the valve body to abut against the acting force to increase is further arranged between the valve core (3) and the quick-rotating screw rod (1).
5. The gate valve lead screw according to claim 4, characterized in that the guiding and pressurizing device comprises a supporting sleeve (6), the lower end of the supporting sleeve (6) is provided with a supporting part (7) in the shape of a strip block, when the supporting sleeve (6) is fixedly connected to the lower end of the fast-rotation lead screw (1), the valve core (3) and the supporting part (7) of the supporting sleeve (6) are supported against and matched, the middle position of the lower end face of the supporting part (7) is provided with a guide groove (8) in the shape of an inverted V, when the adjusting lead screw (2) axially and upwards displaces on the fast-rotation lead screw (1) in a spiral mode, the adjusting lead screw (2) drives the valve core (3) to upwards move so that the middle of the valve core (3) and the guide groove (8) are supported against and matched to cause the deformation of the valve core (3), and the supporting acting force of the two ends of the valve core (3) and the.
6. The gate valve screw rod according to claim 5, characterized in that a metal elastic strip (9) is embedded in the valve core (3) along the same length direction, and a reversed V-shaped displacement (10) is arranged in the middle of the lower end surface of the valve core (3).
7. The gate valve screw rod according to claim 6, wherein the inner wall of the abutting sleeve (6) is provided with an internal thread, the outer wall of the lower end of the quick-rotating screw rod (1) is provided with an external thread, and the internal thread of the abutting sleeve (6) is screwed on the external thread of the outer wall of the lower end of the quick-rotating screw rod (1).
8. The gate valve screw rod according to claim 7, characterized in that the upper end of the outer wall of the fast-screwing screw rod (1) is provided with a fast-screwing external thread section (11), and a sealing guide sleeve (12) is embedded on the outer wall of the fast-screwing screw rod (1) below the fast-screwing external thread section (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922256455.0U CN210949933U (en) | 2019-12-16 | 2019-12-16 | Gate valve screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922256455.0U CN210949933U (en) | 2019-12-16 | 2019-12-16 | Gate valve screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210949933U true CN210949933U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922256455.0U Active CN210949933U (en) | 2019-12-16 | 2019-12-16 | Gate valve screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210949933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111792214A (en) * | 2020-07-17 | 2020-10-20 | 安徽省阜阳市海泉粮油工业股份有限公司 | Feed arrangement is used in rice production |
-
2019
- 2019-12-16 CN CN201922256455.0U patent/CN210949933U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111792214A (en) * | 2020-07-17 | 2020-10-20 | 安徽省阜阳市海泉粮油工业股份有限公司 | Feed arrangement is used in rice production |
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Effective date of registration: 20230117 Address after: 317600 Qinggang Town, Yuhuan City, Taizhou, Zhejiang Patentee after: ZHEJIANG VALOGIN TECHNOLOGY Co.,Ltd. Address before: Xiaqiu Village, Qinggang Town, Yuhuan City, Taizhou City, Zhejiang Province, 317606 Patentee before: ZHEJIANG HUALONG JUSHUI HVAC TECHNOLOGY CO.,LTD. |