CN107741194B - Inspection device for depth of valve cover groove of inclined flap check valve and position of flange bolt hole - Google Patents
Inspection device for depth of valve cover groove of inclined flap check valve and position of flange bolt hole Download PDFInfo
- Publication number
- CN107741194B CN107741194B CN201711111923.4A CN201711111923A CN107741194B CN 107741194 B CN107741194 B CN 107741194B CN 201711111923 A CN201711111923 A CN 201711111923A CN 107741194 B CN107741194 B CN 107741194B
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- groove
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- valve
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- 238000007689 inspection Methods 0.000 title claims description 11
- 238000001514 detection method Methods 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 2
- 241000446313 Lamella Species 0.000 claims 2
- 238000007789 sealing Methods 0.000 description 11
- 239000012530 fluid Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Check Valves (AREA)
- Valve Housings (AREA)
Abstract
The invention relates to a device for checking the depth of a valve cover groove of an inclined flap check valve and the position of a flange bolt hole, which is characterized by comprising a rectangular positioning slat with a round angle, wherein the shape of one long side of the rectangular positioning slat is consistent with the shape of the valve cover groove side, a groove detection hole with the same size and shape as the valve cover groove is longitudinally arranged along a plate body by taking the transverse central line of the plate body as a symmetrical center, positioning pin holes are symmetrically arranged at the outer sides of two ends of the hole by taking the transverse central line of the plate body as a central center, and the relative positions of the groove detection hole and the positioning pin hole are consistent with the relative positions of the valve cover groove on the valve cover and the flange bolt holes at the two ends of the valve cover groove; setting a positioning pin inserted into the positioning pin hole; the positioning strip plate is positioned and placed by aligning the groove detection hole and the two positioning pin holes of the positioning strip plate with the groove detection hole and the two positioning pin holes of the positioning strip plate respectively to the valve cover groove and the two valve cover bolt holes in a detection state, the groove depth detection block is inserted into the valve cover groove through the groove detection hole, and the groove depth is shown through the depth and the error range mark arranged on the outer wall of the groove depth detection block.
Description
Technical Field
The invention relates to a valve inspection device, in particular to a valve cover groove and flange bolt inspection device of an inclined flap check valve.
Background
The check valve is a valve which can automatically open and close the valve clack by means of the flow of the medium and is used for preventing the medium from flowing backwards, and is also called a check valve, a one-way valve and a back pressure valve. The automatic valve has the main functions of preventing medium from flowing backwards, preventing the reverse rotation of the pump and the driving motor and preventing the medium from leaking from the container. The function of the check valve is to allow the medium to flow in only one direction, and typically such valves are automatic.
The swing check valve is one of check valves, fluid on-off is controlled through the rotation and opening and closing of the valve clack, and the valve clack is opened under the action of fluid pressure flowing in one direction; when fluid flows in the opposite direction, the valve clack is closed on the valve seat by the pressure of the fluid and the dead weight of the valve clack, so that the flow is cut off. The recently pushed-out inclined flap check valve is a swing check valve with inclined valve flaps, and structurally comprises a cylindrical valve body, wherein a fluid inlet, a fluid outlet and a middle opening are respectively arranged at two ends of the cylindrical valve body, a valve cover is arranged on a middle opening flange, a valve body sealing surface is arranged on the inner fluid inlet side of the valve body and forms an included angle of 45 degrees with the plane of the middle opening flange, the inclined valve flaps are connected with the valve body sealing surface in an opening-closing mode, and a shaft hub of each inclined valve flap is embedded in a groove at the joint of the valve cover on the fluid inlet side and the valve body. In operation, the structural design of the 45-degree angle of the sealing surface of the valve body can reduce the stroke from the inclined valve clack to the full-open position; the valve clack opening angle is not more than 35 degrees, and can be rapidly closed, so that the impact at the closing position can be avoided, and the possibility of a water hammer is greatly reduced. The inclined clack check valve is mainly suitable for a horizontally installed water supply and drainage system, and can be installed at the water outlet of a water pump to prevent backflow and damage of a water hammer to the pump. And the water supply device can also be arranged on a bypass pipe of a water inlet and outlet pipe of the reservoir so as to prevent the water in the reservoir from flowing backwards into the water supply system.
In the processing and manufacturing of the inclined-flap check valve, a 45-degree included angle is formed between the sealing surface of the valve body and the flange plane of the middle opening, the shaft hub of the inclined valve flap is embedded in a groove at the joint of the valve cover and the valve body at the fluid inlet side, and the valve cover is connected with the valve body through flange bolts, so that the depth position of the groove surface and the relative position of the groove surface and the bolt hole are ensured to be the 45-degree angle of the valve flap set by the inclined-flap check valve and the set sealing performance is very important, and therefore, a special inspection device is required to be developed to ensure.
Disclosure of Invention
The invention aims to provide a device for checking the depth of a valve cover groove and the position of a flange bolt hole of an inclined flap check valve, so that the depth of the valve cover groove and the relative position of the valve cover groove and the flange bolt hole meet the design requirements, the sealing contact between the valve cover and a sealing surface of a valve body is ensured, and the sealing performance of the valve is ensured.
The technical scheme adopted for solving the technical problems is as follows:
the device is characterized by comprising a rectangular positioning slat with a round angle, wherein the long side of the rectangular positioning slat is provided with a shape which is matched with the shape of the side of the valve cover groove, a groove detection hole with the same shape as the valve cover groove is longitudinally arranged on the positioning slat along the longitudinal direction of the plate body, positioning pin holes are symmetrically arranged on the outer sides of two ends of the groove detection hole by taking the transverse central line of the plate body as the center, and the relative positions of the groove detection hole and the positioning pin hole are consistent with the relative positions of the valve cover groove on the valve cover and the flange bolt holes near the two ends of the valve cover groove; setting a positioning pin inserted into the positioning pin hole; the positioning lath is also provided with a groove depth detection block, the groove detection holes and the two positioning pinholes of the positioning lath in the detection state are aligned to the valve cover groove and positioned and placed near the two valve cover bolt holes at the two ends of the positioning lath respectively, the groove depth detection block is inserted into the valve cover groove through the groove detection holes, and the groove depth is shown through the depth and error range marks arranged on the outer wall of the groove depth detection block.
The locating pin consists of a shoulder cylinder section and a threaded end cylinder section which is concentric with the shoulder cylinder section, and the locating pin is pressed against the bottom surface of the locating slat by the shoulder to be inserted into the locating pin hole and is fastened on the threaded end on the top surface of the locating slat by a fastening nut.
The groove depth detection block is a square cylinder, the bottom end of the groove depth detection block is a semicircular curved surface which is matched with the semicircular groove bottom shape of the valve cover groove, the depth and error range marks arranged on the outer wall of the cylinder are rings Zhou Kexian which correspond to the sum of the groove depth set value and the thickness value of the positioning slat, and the width value of each ring Zhou Kexian is equal to the set groove depth error range value.
The semicircular curved surface is provided with a heat treatment hardening layer.
The beneficial effects of the invention are as follows: the valve cover groove depth and flange bolt hole checker for the inclined flap check valve is adopted, the positioning lath of the checker enables the valve cover groove position and the relative position of the valve cover flange bolt hole to be accurately positioned, and further, the groove depth of the valve cover is accurately detected through the groove depth detection block with the groove depth and error range marks, so that the valve cover groove depth and the flange bolt hole position of the inclined flap check valve are guaranteed to meet the design requirements, the valve cover is enabled to be in sealing contact with the sealing surface of the valve body, and the sealing performance of the valve is guaranteed. The inspection device has the advantages of simple structure, quick and convenient use, easy manufacture and suitability for popularization.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic view of the locating slat of FIG. 1;
FIG. 4 is a schematic view of the structure of the dowel of FIG. 1;
FIG. 5 is a schematic diagram of the structure of a groove depth detection block;
FIG. 6 is a left side view of FIG. 5;
FIG. 7 is a schematic view of the structure of the present invention applied to valve cover detection;
fig. 8 is a top view of fig. 7.
In the figure: the device comprises a positioning slat 1, a groove detection hole 11, a positioning pin hole 12, a fastening nut 2, a positioning pin 3, a shoulder cylinder section 31, a threaded end cylinder section 32, a groove depth detection block 4, a ring Zhou Kexian, a semicircular curved surface 42, a valve cover groove 5 and a valve cover bolt hole 6. Device for checking depth of valve cover groove of inclined flap check valve and position of flange bolt hole, and valve cover B
The present invention will be described in detail below with reference to the drawings and examples.
Detailed Description
1-7 show a check tool A for the depth of a valve cover groove of an inclined flap check valve and the position of a flange bolt hole and application thereof in check, which is characterized by comprising a rectangular positioning slat 1 with a round angle, wherein the long side of the rectangular positioning slat is in shape matching with the shape of the valve cover groove side, a groove detection hole 11 with the same size and shape as the valve cover groove 5 is longitudinally arranged on the positioning slat along the longitudinal direction of a plate body by taking the transverse center line of the plate body as a symmetrical center, positioning pin holes 12 are symmetrically arranged on the outer sides of two ends of the groove detection hole 11 by taking the transverse center line of the plate body as a center, and the relative positions of the groove detection hole 11 and the positioning pin holes 12 are consistent with the relative positions of the valve cover groove 5 on the valve cover B and the flange bolt holes 6 near the two ends of the valve cover B; and a positioning pin 3 inserted into the positioning pin hole 12 is provided; as shown in fig. 2 and 4, the positioning pin 3 is composed of a shoulder cylindrical section 31 and a threaded end cylindrical section 32 concentric with the shoulder cylindrical section, and is inserted into the positioning pin hole 12 with its shoulder pressing against the bottom surface of the positioning lath 1 and fastened to the threaded end by the fastening nut 2 on the top surface of the positioning lath 1.
The invention is also provided with a groove depth detection block 4, as shown in fig. 5-6, the groove depth detection block 4 is a square column, the bottom end of the groove depth detection block is a semicircular curved surface 42 which is matched with the semicircular groove bottom shape of the valve cover groove 5, the depth and error range marks arranged on the outer wall of the column are rings Zhou Kexian 41 which correspond to the sum of the groove depth set value and the positioning slat thickness value, and the width value of the rings Zhou Kexian is equal to the set groove depth error range value.
As shown in fig. 7-8, the positioning lath in the detection state is positioned and placed with its groove detection hole 11 and two positioning pin holes 12 aligned with the valve cover groove 5 and two valve cover bolt holes 6 near both ends thereof, respectively, the groove depth detection block 4 is inserted into the valve cover groove 5 through the groove detection hole 11, and the groove depth is shown by the depth set on the outer wall thereof and the error range mark thereof.
The specific inspection steps of the invention are as follows:
first, the inspection tool for the depth of the groove of the valve cover of the inclined flap check valve and the position of the bolt hole of the flange is assembled, the positioning pin 3 is pressed against the bottom surface of the positioning slat 1 by the shoulder thereof to be inserted into the positioning pin hole 12 and fastened on the threaded end by the fastening nut 2 on the top surface of the positioning slat 1. The long side with round corners of the positioning slat of the inspection device is aligned with the edge part of the flange of the valve cover, the groove side of the valve cover is matched with the shape of the flange, the positioning pin 3 is respectively inserted into two valve cover bolt holes 6 near the two ends of the valve cover groove 5, then the groove depth detection block 4 is inserted into the valve cover groove 5 through the groove detection hole 11 and moves along the groove, at this time, the position relation between the ring Zhou Kexian 41 and the top surface of the positioning slat 1 is observed, if the top surface of the positioning slat 1 always coincides within the width range of the ring Zhou Kexian 41 in the moving process, the groove depth of the valve cover of the inclined flap check valve is consistent with the design requirement. If the top surface of the locating slat 1 is staggered from the width range of the ring Zhou Kexian during the moving process, the depth of the groove of the valve cover of the inclined flap check valve is not in accordance with the design requirement.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the structure and shape of the present invention in any way, and any simple modification, equivalent variation and modification of the above embodiments according to the technical matter of the present invention still fall within the scope of the technical solutions of the present invention.
Claims (3)
1. The device is characterized by comprising a rectangular positioning slat with a round angle, wherein the long side of the rectangular positioning slat is provided with a shape which is matched with the shape of the side of the valve cover groove, a groove detection hole with the same shape as the valve cover groove is longitudinally arranged on the positioning slat along the longitudinal direction of the plate body, positioning pin holes are symmetrically arranged on the outer sides of two ends of the groove detection hole by taking the transverse central line of the plate body as the center, and the relative positions of the groove detection hole and the positioning pin hole are consistent with the relative positions of the valve cover groove on the valve cover and the flange bolt holes near the two ends of the valve cover groove; setting a positioning pin inserted into the positioning pin hole; the device is also provided with a groove depth detection block, the groove depth detection block is a square column, the bottom end of the groove depth detection block is a semicircular curved surface which is matched with the semicircular groove bottom shape of the valve cover groove, the depth and error range mark arranged on the outer wall of the column is a ring Zhou Kexian which corresponds to the sum of the groove depth set value and the thickness value of the positioning slat, and the width value of the ring Zhou Kexian is equal to the set groove depth error range value; the locating lath under the detection state aligns the valve gap recess with its recess detection hole and two locating pin holes respectively and is close to its both ends two valve gap bolt holes location place, recess depth detection piece inserts the valve gap recess through the recess detection hole to along the groove removal, if in the removal in-process, locating lath top surface coincidence all the time in the width scope of ring Zhou Kexian, then indicate that oblique lamella check valve gap recess degree of depth accords with the design requirement, if in the removal in-process, locating lath top surface staggers with the width scope of ring Zhou Kexian, then indicates that oblique lamella check valve gap of depth does not accord with the design requirement.
2. The inspection tool for the depth of the valve cover groove of the inclined flap check valve and the position of the bolt hole of the flange according to claim 1, wherein the positioning pin is composed of a shoulder cylinder section and a threaded end cylinder section which is concentric with the shoulder cylinder section, and the positioning pin is pressed against the bottom surface of the positioning slat by the shoulder and inserted into the positioning pin hole and is fastened on the threaded end by the fastening nut on the top surface of the positioning slat.
3. The inspection tool for the depth of the valve cover groove and the position of the flange bolt hole of the inclined flap check valve according to claim 1 or 2, wherein the semicircular curved surface is provided with a heat treatment hardening layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711111923.4A CN107741194B (en) | 2017-11-13 | 2017-11-13 | Inspection device for depth of valve cover groove of inclined flap check valve and position of flange bolt hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711111923.4A CN107741194B (en) | 2017-11-13 | 2017-11-13 | Inspection device for depth of valve cover groove of inclined flap check valve and position of flange bolt hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107741194A CN107741194A (en) | 2018-02-27 |
| CN107741194B true CN107741194B (en) | 2023-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711111923.4A Active CN107741194B (en) | 2017-11-13 | 2017-11-13 | Inspection device for depth of valve cover groove of inclined flap check valve and position of flange bolt hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107741194B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183192A (en) * | 2011-05-24 | 2011-09-14 | 广州康迪克竞和机械制造有限公司 | Device and method for detecting symmetry of key groove |
| CN202255342U (en) * | 2011-09-08 | 2012-05-30 | 武汉钢铁(集团)公司 | Error detection device for indicating values of depth indication meter |
| CN205342399U (en) * | 2016-01-29 | 2016-06-29 | 武汉心浩智能科技有限公司 | Screw rod notch probe detection device |
| KR20160088617A (en) * | 2015-01-16 | 2016-07-26 | 상신브레이크주식회사 | Apparatus for measuring small hole depth |
| CN205785019U (en) * | 2016-06-21 | 2016-12-07 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of detection ruler measured for pit depth |
-
2017
- 2017-11-13 CN CN201711111923.4A patent/CN107741194B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183192A (en) * | 2011-05-24 | 2011-09-14 | 广州康迪克竞和机械制造有限公司 | Device and method for detecting symmetry of key groove |
| CN202255342U (en) * | 2011-09-08 | 2012-05-30 | 武汉钢铁(集团)公司 | Error detection device for indicating values of depth indication meter |
| KR20160088617A (en) * | 2015-01-16 | 2016-07-26 | 상신브레이크주식회사 | Apparatus for measuring small hole depth |
| CN205342399U (en) * | 2016-01-29 | 2016-06-29 | 武汉心浩智能科技有限公司 | Screw rod notch probe detection device |
| CN205785019U (en) * | 2016-06-21 | 2016-12-07 | 中国大唐集团科学技术研究院有限公司华东分公司 | A kind of detection ruler measured for pit depth |
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| Publication number | Publication date |
|---|---|
| CN107741194A (en) | 2018-02-27 |
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