CN117432865A - Valve foot rest with adjustable height and assembly method - Google Patents
Valve foot rest with adjustable height and assembly method Download PDFInfo
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- CN117432865A CN117432865A CN202311766850.8A CN202311766850A CN117432865A CN 117432865 A CN117432865 A CN 117432865A CN 202311766850 A CN202311766850 A CN 202311766850A CN 117432865 A CN117432865 A CN 117432865A
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- valve
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- foot rest
- supporting plate
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000003466 welding Methods 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 21
- 230000001276 controlling effect Effects 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 description 8
- 230000005484 gravity Effects 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention belongs to the field of hydraulic valves, and particularly relates to a valve foot stool with adjustable height and an assembly method thereof, wherein the valve foot stool comprises a supporting plate, a supporting seat, a baffle plate and a fastening piece; an assembly groove is formed along the middle of the supporting plate, so that the supporting plate forms a first supporting plate and a second supporting plate which are oppositely arranged, and a plurality of tooth-shaped grooves with triangular sections are formed on one side of the first supporting plate and the second supporting plate, which faces the assembly groove; the support is formed by welding a bottom plate and an adjusting plate, a plurality of protrusions with triangular cross sections are arranged on the adjusting plate, and the protrusions on the adjusting plate are matched with different tooth-shaped grooves by inserting the adjusting plate into the assembly grooves, so that the vertical height of the valve foot rest is adjusted. The valve foot rest can enable the valve to be adjusted according to the on-site design, and the phenomenon that the valve cannot be installed due to the height is avoided.
Description
Technical Field
The invention belongs to the field of hydraulic valves, and particularly relates to a valve foot rest with adjustable height and an assembly method.
Background
In the prior art, when a large-caliber valve is installed on a transportation pipeline, a valve support pier 4 is usually constructed at the installation position of the valve 1, and a foot stool 3 is manufactured according to the design height of a construction site. After the foot stool 3 is fixed to the valve 1, the valve 1 is supported on the valve support pier 4 by the foot stool 3, and the upstream and downstream sides of the valve 1 are respectively mounted to the pipes 2 of the transportation pipeline. However, due to manufacturing errors or design changes of the valve support pier 4, after the valve 1 is mounted to the valve support pier 4, the valve 1 is not concentric with the pipeline 2 (see fig. 1), so that the valve cannot be mounted, and at this time, the valve is required to be rebuilt or removed from the factory, so that no small economic loss is caused.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide the valve foot stool with adjustable height and the assembly method, wherein the height of the valve foot stool can be adjusted according to the on-site design, so that the phenomenon that the valve cannot be installed due to the height is effectively avoided, the risk of returning to factories to reform or dismount the valve support pier is reduced, and unnecessary economic loss is avoided.
In order to achieve the above object, the present invention provides the following technical solutions:
the valve foot stool with adjustable height is arranged on a side valve body of the valve, the valve is supported on a valve supporting pier through the valve foot stool, and the valve foot stool comprises a supporting plate, a supporting seat, a baffle plate and a fastening piece; the support plate is of a U-shaped plate structure, an assembly groove is formed in the middle of the support plate, so that the support plate forms a first support plate and a second support plate which are oppositely arranged, the top ends of the first support plate and the second support plate are connected with a fixing section, a through hole is formed in the fixing section, and the support plate is fixed on the side valve body after passing through the through hole by a fastener; a plurality of triangular tooth-shaped grooves with triangular sections are formed in one side, facing the assembly groove, of the first support plate and the second support plate;
the support is formed by welding a bottom plate and an adjusting plate, a plurality of protrusions with triangular sections are arranged on the adjusting plate, and the protrusions are matched with the tooth-shaped grooves; the adjusting plate is inserted into the assembling groove, so that a plurality of protrusions on the adjusting plate are matched with different tooth-shaped grooves, and the vertical height of the valve foot rest is adjusted.
Preferably, two lugs are respectively arranged at the left end and the right end of the supporting plate, the lugs on the first supporting plate and the second supporting plate are provided with unthreaded holes, mounting grooves are further formed in the lugs, and the baffle is clamped into the mounting grooves; the baffle comprises a base and trunnions positioned at two ends of the base, and the trunnions are provided with connecting holes; the fastening member fixes the baffle plate in the mounting groove after passing through the light hole and the connection hole, thereby sandwiching the adjustment plate between the two baffle plates.
Preferably, the cross-sectional shapes of the tooth-shaped groove and the bulge are right triangles, one side of the tooth-shaped groove and one side of the tooth-shaped groove are horizontally arranged, and the included angle theta between the other side and the horizontal plane is 45-70 degrees.
Preferably, both sides of the protrusion are obliquely arranged, wherein an included angle theta between one side and the horizontal plane 1 10-20 degrees; the included angle theta between the other side and the horizontal plane 2 The angle is 60-70 degrees, and the end parts of the two bevel edges are of arc structures.
Preferably, two positioning grooves are symmetrically arranged at the top end of the adjusting plate, the two positioning grooves are respectively positioned below the two fixing sections, two telescopic devices are symmetrically arranged in the assembly groove, one end of each telescopic device is installed in each positioning groove, and the other end of each telescopic device is propped against the fixing section.
Preferably, each telescopic device is provided with a pressure sensor, and when the pressure value detected by the pressure sensor reaches a preset value, the telescopic device stops acting.
Preferably, when the deviation between the pressure value detected by the pressure sensor in the left valve foot stool and the pressure value detected by the pressure sensor in the right valve foot stool is larger than a preset difference value, the telescopic device is controlled to act so that the pressure values on the left side and the right side are the same.
Preferably, a snap spring is mounted on the fastener.
An assembly method for assembling a valve by using a valve foot rest comprises the following steps:
step 1: after the valve is hoisted to a transportation pipeline by utilizing an assembly tool and is adjusted to a proper installation position, the through hole formed in the fixing section is aligned with an installation hole on the valve, and the fastener passes through the through hole and then fixes the supporting plate to the side valve body of the valve;
step 2: the telescopic device is arranged in two positioning grooves symmetrically arranged at the top end of the adjusting plate;
step 3: after the installation height of the support is determined according to the height of the valve support pier and the central height of the valve pipeline in the present place, inserting the protrusions on the adjusting plate into the corresponding tooth-shaped grooves;
step 4: after the support and the supporting plate are assembled, the baffle plates are clamped in the mounting grooves on two sides of the supporting plate, the connecting holes on the baffle plates are aligned with the unthreaded holes on the lugs, after the fastening pieces pass through the unthreaded holes and the connecting holes, nuts are assembled on the fastening pieces, and the clamping springs are arranged on the outer sides of the nuts, so that the baffle plates are fixed in the mounting grooves, and the adjusting plate is clamped between the two baffle plates;
step 5: and controlling the telescopic device to act so that the support and the supporting plate are far away from each other, and controlling the telescopic device to stop acting after the pressure value detected by the pressure sensor reaches a preset value.
Preferably, after the step 5, the method further comprises: when the deviation between the pressure value detected by the pressure sensor in the left valve foot stool and the pressure value detected by the pressure sensor in the right valve foot stool is larger than a preset difference value, the telescopic device is controlled to act so that the pressure values on the left side and the right side are the same.
Compared with the prior art, the valve foot rest with adjustable height and the assembly method provided by the invention have the following beneficial technical effects:
1. the valve foot rest is characterized in that a plurality of triangular tooth-shaped grooves are formed in the supporting plate, triangular protrusions matched with the supporting plate are formed in the supporting seat, so that the supporting seat is reliably connected with the supporting plate, and the height of the valve foot rest can be finely adjusted. When in actual use, after the installation height of the support is adjusted according to the height of the on-site valve support pier and the central height of the valve pipeline, the baffle is fixed by the fastener, and the adjustment of the valve height is completed, so that the valve height meets the requirement of on-site use, the phenomenon that the valve cannot be installed due to the height is effectively avoided, the risk of returning to factories to reform or dismantling the valve support pier is reduced, and unnecessary economic loss is avoided.
2. The valve foot rest provided by the invention adopts the connecting structure, so that the valve can be prevented from sliding off the support in the process of assembly and transportation; the elastic deformation of the first support plate and the second support plate can be prevented from interfering through the adjusting nut. Meanwhile, due to the adoption of the triangular matched structure, once the assembly is completed, the fixing section and the adjusting plate can only be mutually far away from each other and cannot be mutually close to each other. The valve foot rest can stably bear the gravity of the valve, and the phenomenon that the valve is not concentric with the pipeline due to the fact that the fixed section is displaced relative to the adjusting plate due to the gravity of the valve is avoided; on the other hand, when the valve is not concentric with the pipeline, the valve mounting height can be adjusted by adjusting the valve foot rest.
3. Through setting up tooth-shaped groove and bellied cross-sectional shape as right triangle for protruding triangle-shaped bearing structure that forms is stable, and this structure atress is good, can promote the supporting performance of support.
4. Through setting up two limit with protruding all slope, when the gravity transmission of valve is to first extension board and second extension board, first extension board and second extension board receive protruding effort along inclination for first extension board and second extension board can clamp the regulating plate more steadily, have reduced because the valve weight is too big and have led to the possibility that the fixed section takes place relative displacement for the regulating plate, and contained angle theta that sets up 1 And theta 2 The valve support has the advantages that the protrusions are guaranteed to have enough thickness h so as to support the weight of the valve, the supporting performance of the support can be improved, the transverse width of the protrusions is shortened, and the first support plate and the second support plate cannot generate larger deformation when the valve support is finely adjusted, so that the height of the valve support is finely adjusted. The ends of the two oblique sides are of arc structures, so that the first support plate and the second support plate can be prevented from being scratched, and resistance in fine adjustment is reduced.
5. By arranging the telescopic device between the supporting plate and the support, when the installation height of the support is adjusted according to the height of the on-site valve supporting pier and the central height of the valve pipeline, and the telescopic device is controlled to extend after the installation height of the support is assembled, the supporting plate is enabled to move upwards, so that the installation height of the valve foot rest is further finely adjusted, and the valve is enabled to be concentric with the pipeline.
6. By arranging the pressure sensor on the telescopic device, the valve foot rest is adjusted in place when the pressure value detected by the pressure sensor reaches a preset value in the process of fine-adjusting the mounting height of the valve foot rest by using the telescopic device, and the telescopic device is controlled to stop acting, so that damage to the telescopic device and/or the valve foot rest can be avoided.
7. The invention adopts the mode of measuring the pressure difference by the pressure sensor, on one hand, the invention can more sensitively determine whether the valve is inclined compared with the pipeline; on the other hand, the adjusting quantity can be accurately controlled, and the concentricity of the adjusted valve and the pipeline is ensured.
Drawings
FIG. 1 is a schematic diagram of a prior art valve installation;
FIG. 2 is a schematic view of a valve assembly according to the present invention;
FIG. 3 is an enlarged view of a portion of the valve foot stool of FIG. 2;
FIG. 4 is a cross-sectional view of a valve foot rest;
FIG. 5 is an enlarged partial schematic view of a valve foot rest;
FIG. 6 is an enlarged partial schematic view of another embodiment of a valve foot stool;
fig. 7 is another cross-sectional view of the valve foot stool.
Wherein the reference symbols in the figures have the following meanings:
1. a valve; 2. a pipe; 3. a foot rest; 4. a valve support pier; 5. a support plate; 6. a support; 7. a baffle; 8. a telescoping device;
51. a first support plate; 52. a second support plate; 53. a mounting groove; 54. a fixed section; 55. a lug; 56. a first tooth-shaped groove; 541. a through hole; 542. clamping springs; 561. a second tooth-shaped groove;
61. a bottom plate; 62. an adjusting plate; 63. reinforcing ribs; 64. a first protrusion; 65. a positioning groove; 641. a second protrusion;
71. a base; 72. a trunnion; 721. and a connection hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the invention.
Thus, the following detailed description of the embodiments of the invention is not intended to limit the scope of the invention, as claimed, but is merely representative of some embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, under the condition of no conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, the terms "upper", "lower", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or an azimuth or a positional relationship conventionally put in use of the inventive product, or an azimuth or a positional relationship conventionally understood by those skilled in the art, such terms are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Referring to fig. 2-7, the invention provides a valve foot stool with adjustable height, which comprises a supporting plate 5, a support 6, a baffle 7 and a fastener. Wherein, the supporting plate 5 is in a U-shaped plate structure, and an assembly groove is formed along the middle of the supporting plate 5, so that the supporting plate 5 forms a first supporting plate 51 and a second supporting plate 52 which are oppositely arranged, the top ends of the first supporting plate 51 and the second supporting plate 52 are connected with a fixing section 54, a through hole 541 is formed on the fixing section 54, and a fastener passes through the through hole 541 and then fixes the supporting plate 5 on a side valve body of the valve 1. A plurality of first tooth-shaped grooves 56 with triangular sections are formed in one side, facing the assembly grooves, of the first support plate 51 and the second support plate 52, and the first tooth-shaped grooves 56 are connected end to end in sequence.
The support 6 is welded by a bottom plate 61 and an adjusting plate 62, and a reinforcing rib 63 is provided at the junction of the bottom plate 61 and the adjusting plate 62 to improve the structural strength of the support 6. The adjusting plate 62 is provided with a plurality of first protrusions 64 with triangular cross sections, and the first protrusions 64 are connected end to end in sequence and matched with the first tooth-shaped grooves 56. The vertical height of the stand is adjusted by inserting the adjusting plate 62 into the fitting groove between the first support plate 51 and the second support plate 52 so that the plurality of first protrusions 64 on the adjusting plate 62 are engaged with the different first tooth-shaped grooves 56.
Two lugs 55 are respectively arranged at the left end and the right end of the supporting plate 5, the lugs 55 on the first supporting plate 51 and the second supporting plate 52 are provided with unthreaded holes for the fasteners to pass through, the lugs 55 are also provided with mounting grooves 53, and the baffle 7 can be clamped into the mounting grooves 53. The baffle 7 includes a base 71 and trunnions 72 at both ends of the base 71, and the trunnions 72 are provided with connecting holes 721. The fastener fixes the barrier 7 in the mounting groove 53 after passing through the light hole and the connection hole 721, thereby sandwiching the adjustment plate 62 between the two barriers 7, preventing the adjustment plate 62 from moving. After the support 6 of the valve foot stool is assembled with the support plate 5, the baffles 7 are additionally arranged at the two ends of the support plate 5, the fastening piece passes through the unthreaded hole and the connecting hole 721, then the nut is assembled on the fastening piece, and the snap spring 542 is arranged at the outer side of the nut, so that the support 6 is fixed between the two baffles 7, and the support is prevented from sliding off during assembly and transportation of the valve. When the valve is installed to a transportation pipeline, the nut is retracted to be in contact with the clamp spring 542, so that the first support plate 51 and the second support plate 52 can elastically deform outwards, and the height of the valve foot rest can be adjusted conveniently.
By adopting the connecting structure, the valve can be prevented from sliding off the support in the process of assembly and transportation; the elastic deformation of the first support plate and the second support plate can be prevented from interfering through the adjusting nut. Meanwhile, due to the adoption of the triangular matched structure, once the assembly is completed, the fixing section and the adjusting plate can only be mutually far away from each other and cannot be mutually close to each other. The valve foot rest can stably bear the gravity of the valve, and the phenomenon that the valve is not concentric with the pipeline due to the fact that the fixed section is displaced relative to the adjusting plate due to the gravity of the valve is avoided; on the other hand, when the valve is not concentric with the pipeline, the valve mounting height can be adjusted by adjusting the valve foot rest. Specifically, in the process of lifting the valve to the transportation pipeline for installation, if the valve is not concentric with the pipeline after being assembled due to manufacturing errors or design scheme changes of the valve support pier, the device provided by the invention is adopted, firstly, after the installation height of the support is adjusted according to the height of the on-site valve support pier and the central height of the valve pipeline, the baffle is fixed by the fastener, and the adjustment and fixation of the valve height are completed, so that the valve height meets the requirement of on-site use, the phenomenon that the valve cannot be installed due to the height is effectively avoided, the risk of returning the valve to factories to transform or dismantle the valve support pier is reduced, and unnecessary economic loss is avoided.
Preferably, the first tooth-shaped grooves 56 and the first projections 64 are each right triangle in cross-sectional shape, with one side being horizontally disposed and the other side being at an angle θ of 45 ° to 70 ° to the horizontal. Through setting up tooth-shaped groove and bellied cross-sectional shape as right triangle for protruding triangle-shaped bearing structure who forms stability, this structure atress is preferred, has promoted the supporting performance of support.
In the above arrangement, although a right triangle-shaped cooperation structure is adopted to form a stable triangle support, the possibility of relative displacement of the fixed section relative to the adjusting plate caused by excessive weight of the valve still exists, and meanwhile, fine adjustment of the height of the valve bracket is inconvenient. Therefore, in another preferred embodiment, the first support plate 51 and the second support plate 52 are provided with a plurality of second tooth-shaped grooves 561 having a triangular cross section toward one side of the assembly groove, and the plurality of second tooth-shaped grooves 561 are connected end to end in sequence. The adjusting plate 62 is provided with a plurality of second triangular cross sectionsThe protrusions 641 and a plurality of second protrusions 641 are sequentially connected end to end and are matched with the second tooth-shaped grooves 561. Wherein, two sides of the second protrusion 641 are both obliquely arranged, and an included angle theta between one side and the horizontal plane 1 10 ° -20 °, preferably 15 ° -20 °; the included angle theta between the other side and the horizontal plane 2 60-70 degrees, preferably 60-65 degrees, and the ends of the two bevel edges are in arc structures. Through the arrangement, when the gravity of the valve is transferred to the first support plate and the second support plate, the first support plate and the second support plate are subjected to the acting force of the bulges along the inclined direction, so that the first support plate and the second support plate can clamp the adjusting plate more stably, the possibility of relative displacement of the fixed section relative to the adjusting plate caused by overlarge weight of the valve is reduced, and the included angle theta is set 1 And theta 2 The valve support has the advantages that the protrusions are guaranteed to have enough thickness h so as to support the weight of the valve, the supporting performance of the support can be improved, the transverse width of the protrusions is shortened, and the first support plate and the second support plate cannot generate larger deformation when the valve support is finely adjusted, so that the height of the valve support is finely adjusted. The ends of the two oblique sides are of arc structures, so that the first support plate and the second support plate can be prevented from being scratched, and resistance in fine adjustment is reduced.
Preferably, the top end of the adjusting plate 62 is symmetrically provided with two positioning grooves 65, and the two positioning grooves 65 are respectively located below the two fixing sections 54. Two telescopic devices 8 are symmetrically arranged in the assembly groove, one end of each telescopic device 8 is arranged in the positioning groove 65, and the other end of each telescopic device abuts against the fixed section 54.
In the process of lifting the valve to the transportation pipeline for installation, when the installation height of the support is readjusted according to the height of the valve support pier on site and the central height of the valve pipeline, and after the valve support is assembled, the valve and the pipeline are slightly different. Thus, by providing the telescoping device 8 between the support plate 5 and the support 6, the mounting height of the support is adjusted according to the height of the valve support pier on site and the central height of the valve pipe, and after the support is assembled, the telescoping device 8 is controlled to extend to move the support plate 5 upwards so as to further fine-tune the mounting height of the valve foot rest, so that the valve is concentric with the pipe. Taking the example that the central height difference between the valve and the pipeline is about the height of a tooth-shaped groove, when the supporting plate 5 moves upwards, the bulge moves downwards relative to the tooth-shaped groove, and at the moment, the adjusting plate 62 and the first supporting plate 51 and the second supporting plate 52 are similar to a pawl rack mechanism, because the first supporting plate 51 and the second supporting plate 52 have certain elasticity, the bulge outwards expands the first supporting plate 51 and the second supporting plate 52, and when the bulge moves by the displacement of one tooth-shaped groove relative to the first supporting plate 51 and the second supporting plate 52, the bulge is clamped into the tooth-shaped groove, so that the installation height of the valve foot rest is further finely adjusted, and the valve is concentric with the pipeline. Other center height differences are similar to the previous process and will not be described here. It should be noted that, after the vertical height of the valve stand is adjusted, the position of the valve 1 in the left-right direction can be adjusted so that the valve 1 and the pipeline 2 are concentric in the left-right direction, the support plate 5 slides left and right relative to the support 6 at this time, and after the concentricity of the valve 1 in the left-right direction is adjusted in place, the two ends of the support 6 are respectively provided with a baffle plate 7 to prevent the support from sliding from the support plate.
Preferably, each telescopic device 8 is provided with a pressure sensor, the pressure sensor is located between the telescopic device 8 and the adjusting plate 62, and when the pressure value detected by the pressure sensor reaches a preset value, the telescopic device 8 stops acting. In the process of fine-adjusting the installation height of the valve foot rest by using the telescopic device, when the pressure value detected by the pressure sensor reaches a preset value, the pressure value is adjusted to be in place at the moment, so that the telescopic device is controlled to stop acting, and the telescopic device and/or the valve foot rest can be prevented from being damaged.
During actual use of the valve, it may happen that the valve is tilted compared to the pipeline (e.g. irregular settling of the valve support piers), which may result in a height difference of the valve foot rests at both ends of the valve. In order to solve the above-mentioned problem, when it appears that the deviation between the pressure value detected by the pressure sensor in the left valve stand and the pressure value detected by the pressure sensor in the right valve stand is greater than a predetermined difference, the telescopic device 8 is controlled to operate so that the pressure values on the left and right sides are substantially the same.
After the valve is installed, whether the valve is inclined or not is troublesome by measuring concentricity of the valve and the pipeline. It is also difficult to determine whether to adjust in place during adjustment of the eccentric valve. In the invention, a pressure sensor is adopted to measure the pressure difference, so that on one hand, whether the valve is inclined compared with a pipeline or not can be determined more sensitively; on the other hand, the adjusting quantity can be accurately controlled, and the concentricity of the adjusted valve and the pipeline is ensured. In addition, irregular sedimentation of the valve support pier is a main cause of non-concentricity of the valve and the pipeline in the actual use process. In this case, the settling volume can be effectively compensated by the telescopic device 8 moving the fixing section 54 and the adjusting plate 62 away from each other. The device provided by the invention enables the fixed section 54 and the adjusting plate 62 to be far away from each other and not close to each other, completely fits the actual working condition of the valve, and is improved on the basis of long-term engineering practice by the inventor.
The invention also provides an assembling method for assembling the valve by using the valve foot rest, which comprises the following steps:
step 1: after the valve 1 is hoisted to the transportation pipeline by using the assembly fixture and adjusted to a proper installation position, the through holes 541 formed in the fixing section 54 are aligned with the installation holes in the valve 1, and the fastening pieces pass through the through holes 541 to fix the support plate 5 to the side valve body of the valve 1.
Step 2: the telescopic device 8 is mounted in two positioning grooves 65 symmetrically arranged at the top end of the adjusting plate 62.
Step 3: after the installation height of the support 6 is determined according to the height of the valve support pier 4 and the central height of the valve pipeline, the protrusions on the adjusting plate 62 are inserted into the corresponding tooth-shaped grooves.
Step 4: when the mount 6 is assembled with the support plate 5, the baffle plates 7 are caught in the mounting grooves 53 on both sides of the support plate 5, the connecting holes 721 on the baffle plates 7 are aligned with the light holes on the lugs 55, the nuts are assembled to the fasteners after passing through the light holes and the connecting holes 721, and the clamp springs 542 are installed on the outer sides of the nuts, so that the baffle plates 7 are fixed in the mounting grooves 53 with the adjusting plate 62 sandwiched between the two baffle plates 7.
Step 5: the telescopic device 8 is controlled to act so that the support 6 and the support plate 5 are far away from each other, and when the pressure value detected by the pressure sensor reaches a preset value, the telescopic device 8 is controlled to stop acting.
Preferably, after step 5, the method further comprises controlling the telescopic device 8 to act so that the pressure values of the left side and the right side are substantially the same when the deviation between the pressure value detected by the pressure sensor in the left side valve foot stool and the pressure value detected by the pressure sensor in the right side valve foot stool is greater than a predetermined difference.
The above embodiments are only for illustrating the present invention and not for limiting the technical solutions described in the present invention, and although the present invention has been described in detail in the present specification with reference to the above embodiments, the present invention is not limited to the above specific embodiments, and thus any modifications or equivalent substitutions are made to the present invention; all technical solutions and modifications thereof that do not depart from the spirit and scope of the invention are intended to be included in the scope of the appended claims.
Claims (10)
1. The utility model provides a height-adjustable's valve foot rest, the valve foot rest is installed on the side valve body of valve, the valve passes through the valve foot rest supports on valve support mound, its characterized in that: the valve foot rest comprises a supporting plate, a support, a baffle and a fastener; the support plate is of a U-shaped plate structure, an assembly groove is formed in the middle of the support plate, so that the support plate forms a first support plate and a second support plate which are oppositely arranged, the top ends of the first support plate and the second support plate are connected with a fixing section, a through hole is formed in the fixing section, and the support plate is fixed on the side valve body after passing through the through hole by a fastener; a plurality of triangular tooth-shaped grooves with triangular sections are formed in one side, facing the assembly groove, of the first support plate and the second support plate;
the support is formed by welding a bottom plate and an adjusting plate, a plurality of protrusions with triangular sections are arranged on the adjusting plate, and the protrusions are matched with the tooth-shaped grooves; the adjusting plate is inserted into the assembling groove, so that a plurality of protrusions on the adjusting plate are matched with different tooth-shaped grooves, and the vertical height of the valve foot rest is adjusted.
2. A valve foot rest as set forth in claim 1 wherein: two lugs are respectively arranged at the left end and the right end of the supporting plate, the lugs on the first supporting plate and the second supporting plate are provided with unthreaded holes, mounting grooves are further formed in the lugs, and the baffle plate is clamped into the mounting grooves; the baffle comprises a base and trunnions positioned at two ends of the base, and the trunnions are provided with connecting holes; the fastening member fixes the baffle plate in the mounting groove after passing through the light hole and the connection hole, thereby sandwiching the adjustment plate between the two baffle plates.
3. A valve foot rest as set forth in claim 2 wherein: the cross sections of the tooth-shaped grooves and the bulges are right-angled triangles, one side of each tooth-shaped groove and one side of each tooth-shaped groove are horizontally arranged, and the included angle theta between the other side of each tooth-shaped groove and the horizontal plane is 45-70 degrees.
4. A valve foot rest as set forth in claim 2 wherein: the two sides of the bulge are obliquely arranged, wherein the included angle theta between one side and the horizontal plane 1 10-20 degrees; the included angle theta between the other side and the horizontal plane 2 The angle is 60-70 degrees, and the end parts of the two bevel edges are of arc structures.
5. A valve foot rest according to any one of claims 3 to 4, wherein: the top symmetry of regulating plate is provided with two constant head tanks, two the constant head tank is located two respectively fixed section below the symmetry is provided with two telescoping devices in the assembly groove, every telescoping device one end is all installed in the constant head tank, the other end all with fixed section supports and leans on.
6. A valve foot rest according to claim 5, wherein: and each telescopic device is provided with a pressure sensor, and when the pressure value detected by the pressure sensor reaches a preset value, the telescopic device stops acting.
7. A valve foot rest according to claim 6, wherein: when the deviation between the pressure value detected by the pressure sensor in the left valve foot stool and the pressure value detected by the pressure sensor in the right valve foot stool is larger than a preset difference value, the telescopic device is controlled to act so that the pressure values on the left side and the right side are the same.
8. A valve foot rest according to claim 7, wherein: and the fastening piece is provided with a clamp spring.
9. A method of assembling a valve using the valve foot rest of claim 8, comprising the steps of:
step 1: after the valve is hoisted to a transportation pipeline by utilizing an assembly tool and is adjusted to a proper installation position, the through hole formed in the fixing section is aligned with an installation hole on the valve, and the fastener passes through the through hole and then fixes the supporting plate to the side valve body of the valve;
step 2: the telescopic device is arranged in two positioning grooves symmetrically arranged at the top end of the adjusting plate;
step 3: after the installation height of the support is determined according to the height of the valve support pier and the central height of the valve pipeline in the present place, inserting the protrusions on the adjusting plate into the corresponding tooth-shaped grooves;
step 4: after the support and the supporting plate are assembled, the baffle plates are clamped in the mounting grooves on two sides of the supporting plate, the connecting holes on the baffle plates are aligned with the unthreaded holes on the lugs, after the fastening pieces pass through the unthreaded holes and the connecting holes, nuts are assembled on the fastening pieces, and the clamping springs are arranged on the outer sides of the nuts, so that the baffle plates are fixed in the mounting grooves, and the adjusting plate is clamped between the two baffle plates;
step 5: and controlling the telescopic device to act so that the support and the supporting plate are far away from each other, and controlling the telescopic device to stop acting after the pressure value detected by the pressure sensor reaches a preset value.
10. The method of assembling of claim 9, further comprising, after said step 5: when the deviation between the pressure value detected by the pressure sensor in the left valve foot stool and the pressure value detected by the pressure sensor in the right valve foot stool is larger than a preset difference value, the telescopic device is controlled to act so that the pressure values on the left side and the right side are the same.
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| CN202311766850.8A CN117432865B (en) | 2023-12-21 | 2023-12-21 | Valve foot rest with adjustable height and assembly method |
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| CN202311766850.8A CN117432865B (en) | 2023-12-21 | 2023-12-21 | Valve foot rest with adjustable height and assembly method |
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| CN117432865B CN117432865B (en) | 2024-02-27 |
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| Publication number | Publication date |
|---|---|
| CN117432865B (en) | 2024-02-27 |
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