CN221120978U - Pin shaft type clamping mechanism of flat gate valve - Google Patents
Pin shaft type clamping mechanism of flat gate valve Download PDFInfo
- Publication number
- CN221120978U CN221120978U CN202323153488.5U CN202323153488U CN221120978U CN 221120978 U CN221120978 U CN 221120978U CN 202323153488 U CN202323153488 U CN 202323153488U CN 221120978 U CN221120978 U CN 221120978U
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- China
- Prior art keywords
- pin shaft
- flashboard
- hole
- round
- valve
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- 230000007246 mechanism Effects 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 14
- 238000003466 welding Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 10
- 230000003872 anastomosis Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
Abstract
The utility model relates to the technical field of gate valves, in particular to a pin shaft type clamping mechanism of a flat gate valve, which comprises a supporting plate, wherein a circle of mounting middle holes are formed in the center position of the supporting plate, a first gate plate and a second gate plate are arranged on the outer side of the supporting plate through the mounting middle holes, a first pin shaft hole is formed in the top end of the outer circle of the first gate plate, a first pin shaft is welded in the first pin shaft hole, a second pin shaft hole is formed in the top end of the outer circle of the second gate plate, a second pin shaft is welded in the second pin shaft hole, a valve rod is arranged at the upper end of the supporting plate, the valve rod is assembled with a screw hole at the upper end of the supporting plate through a threaded structure at the lower end in a screwed mode, a clamping plate is arranged between the valve rod and the supporting plate, the valve rod screwed is fixed at the upper end face position of the supporting plate, a first matching round hole and a second matching round hole are formed in two sides of the clamping plate respectively, and the first pin shaft is inserted into the first matching round hole and the second pin shaft is inserted into the second matching round hole.
Description
Technical Field
The utility model relates to the technical field of gate valves, in particular to a pin shaft type clamping mechanism of a flat gate valve.
Background
The flat gate valve is a sliding valve with parallel gate plates as the closing member, which may be a single gate plate or a double gate plate with a spreader mechanism therebetween, the pressing force of the gate plate against the valve seat is controlled by the pressure of the medium acting on the floating gate plate or the floating valve seat, and if the flat gate valve is a double gate plate gate valve, the spreader mechanism between the two gate plates can supplement the pressing force.
At present, china patent with publication number CN214404752U discloses a flat gate valve, which comprises a valve body, a valve cover, a valve rod, an operator, a gate plate and a valve seat, wherein a flow passage is arranged in the valve body; the flashboard comprises a substrate, a connecting shaft and sealing plates symmetrically arranged on two sides of the substrate, wherein the connecting shaft comprises an optical axis section and thread sections arranged at two ends of the optical axis section, the optical axis section is arranged on the substrate in a penetrating mode, the thread sections at two ends of the optical axis section respectively penetrate through the corresponding sealing plates, concave groove bodies are arranged on the outer sides of the sealing plates, the outer ends of the thread sections are located in the corresponding groove bodies, locking nuts are connected to the thread sections in a threaded mode, and the locking nuts are abutted to the outer sides of the corresponding sealing plates.
Above-mentioned flat gate valve only need change wearing and tearing position when the flashboard wearing and tearing can avoid whole flashboard to change and cause extravagant, can reduce maintenance cost again, but: the flat gate valve does not fundamentally solve the problem of abrasion between the gate plate and the valve seat, and particularly when the gate valve with a similar structure works, the gate plate can generate autorotation motion under the influence of medium scouring and move in a left-right movement range, so that the gate plate is easy to abrade the valve seat, and sealing failure and gate plate abrasion are caused.
Disclosure of utility model
In view of the above, in order to overcome the defects in the prior art, an object of the present utility model is to provide a pin-type clamping mechanism for a flat gate valve, which has the functions of preventing the rotation of the gate in the circumferential direction and limiting the movement range of the gate in the flow passage direction, and greatly reduces the wear degree between the valve seat and the gate.
The technical aim of the utility model is realized by the following technical scheme:
The utility model provides a round pin axle formula fixture of flat gate valve, includes the backup pad, the central point of backup pad puts and is equipped with round installation mesopore, the backup pad outside is equipped with first flashboard and second flashboard through installation mesopore installation, first flashboard and second flashboard are installed on same horizontal plane, one side of first flashboard and second flashboard is equipped with the disk seat, the top of first flashboard excircle department is equipped with first round pin shaft hole, the inside welding in first round pin shaft hole is equipped with first round pin axle, the top of second flashboard excircle department is equipped with the second round pin shaft hole, the inside welding in second round pin shaft hole is equipped with the second round pin axle, the valve rod is installed to the upper end of backup pad, the lower part of valve rod is the helicitic texture, install splint between valve rod and the backup pad through the screw of lower extreme screw, the valve rod after splint are screwed is fixed in backup pad up terminal surface position, both sides are equipped with first cooperation round hole and second cooperation round hole respectively, first round pin axle inserts in the first round pin hole, the second round pin axle inserts in the second cooperation round hole.
Further, a left-right movable gap is reserved between the first pin shaft and the first matching round hole, and a left-right movable gap is reserved between the second pin shaft and the second matching round hole, so that automatic anastomosis sealing with the valve seat is supplemented.
Further, a cylindrical spring is arranged between the first flashboard and the second flashboard, the cylindrical spring is positioned in the mounting middle hole of the supporting plate, and the cylindrical spring is used for controlling the tight sticking pressure between the first flashboard, the second flashboard and the valve seat, so that the valve is effectively sealed.
Further, the first pin shaft is fixed in the first pin shaft hole in a welding mode, the second pin shaft is fixed in the second pin shaft hole in a welding mode, and the first pin shaft and the second pin shaft are prevented from loosening in a welding mode.
Further, the inside of the clamping plate is provided with a step-shaped positioning clamping groove, and the clamping plate is clamped outside the upper end of the supporting plate through the positioning clamping groove and cannot move left and right.
In summary, the utility model has the following beneficial effects:
① According to the utility model, through the combined structure of the clamping plate, the valve rod and the supporting plate, the possible autorotation circular motion of the flashboard is limited, the left-right movement range of the flashboard is limited, the stable structure of the flashboard is ensured, the stable sealing performance is ensured, and the abrasion degree between the valve seat and the flashboard is greatly reduced;
② According to the utility model, through the installation design of the pin shaft and the cylindrical spring, the flashboard can form automatic fit sealing with the valve seat, and the sealing adaptability of the flashboard is enhanced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and together with the description serve to explain the utility model, if necessary:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view in the direction A-A of the present utility model.
In the figure, 1, a supporting plate; 2. installing a middle hole; 3. a first shutter; 4. a second shutter; 5. a valve seat; 6. a first pin hole; 7. a first pin; 8. a second pin hole; 9. a second pin; 10. a valve stem; 11. a clamping plate; 12. a first mating round hole; 13. a second mating round hole; 14. a cylindrical spring; 15. and positioning the clamping groove.
Detailed Description
The foregoing and other features, aspects and advantages of the present utility model will become more apparent from the following detailed description of the embodiments, which proceeds with reference to the accompanying figures 1-2. The following embodiments are described in detail with reference to the drawings.
Exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.
Example 1: the utility model provides a round pin axle formula fixture of flat gate valve, including backup pad 1, backup pad 1's central point puts and is equipped with round installation mesopore 2, backup pad 1 outside is equipped with first flashboard 3 and second flashboard 4 through installation mesopore 2 installation, first flashboard 3 and second flashboard 4 are installed on same horizontal plane, one side of first flashboard 3 and second flashboard 4 is equipped with disk seat 5, the top of first flashboard 3 excircle department is equipped with first round pin hole 6, the inside welding of first round pin hole 6 is equipped with first round pin axle 7, the top of second flashboard excircle department is equipped with second round pin hole 8, the inside welding of second round pin hole 8 is equipped with second round pin axle 9, valve rod 10 is installed to backup pad 1's upper end, the lower part of valve rod 10 is the helicitic texture, install splint 11 between valve rod 10 and the backup pad 1, the valve rod 10 after splint 11 are screwed is fixed in backup pad 1 up end position, splint 11 both sides are equipped with first cooperation round hole 12 and second cooperation round hole 13 respectively, first round pin axle 7 inserts in the first round pin hole 12, second round pin hole 9 inserts in the second round pin hole 13.
A left-right movable gap is reserved between the first pin shaft 7 and the first matching round hole 12, and a left-right movable gap is reserved between the second pin shaft 9 and the second matching round hole 13, so as to supplement the automatic anastomosis seal with the valve seat 5.
And a cylindrical spring 14 is arranged between the first flashboard 3 and the second flashboard 4, the cylindrical spring 14 is positioned in the mounting middle hole 2 of the supporting plate 1, and the cylindrical spring 14 is used for controlling the tight pressure between the first flashboard 3, the second flashboard 4 and the valve seat 5, so that the valve is effectively sealed.
The first pin shaft 7 is fixed in the first pin shaft hole 6 in a welding mode, the second pin shaft 9 is fixed in the second pin shaft hole 8 in a welding mode, and the first pin shaft 7 and the second pin shaft 9 are prevented from loosening in a welding mode.
The inside of the clamping plate 11 is provided with a step-shaped positioning clamping groove 15, and the clamping plate 11 is clamped outside the upper end of the supporting plate 1 through the positioning clamping groove 15 and cannot move left and right.
In the embodiment of the utility model, the first gate plate 3 and the second gate plate 4 are assembled and fixed in the mounting middle hole 2 of the supporting plate 1, the first gate plate 3 and the second gate plate 4 control the close pressure with the valve seat 5 in the valve body through the cylindrical spring 14, so that the effective sealing of the valve is ensured, the upper end of the supporting plate 1 is connected with the valve rod 10 through the screw hole, the valve rod 10 drives the first gate plate 3 and the second gate plate 4 to move up and down when moving up and down, the opening and closing of the gate valve are controlled, the first gate plate 3 and the second gate plate 4 can slide left and right in the middle hole of the supporting plate 1, meanwhile, the assembly of the first gate plate 3 and the second gate plate 4 can be rotated at a high speed by a high-speed flowing medium, and then the valve seat 5 is worn, so that the sealing of the valve is invalid early, and therefore, the left and right moving range and the rotation in the circumferential direction of the gate plate are required to be limited.
The valve adopts the form of a pin shaft, a drill hole is arranged on the outer circular surface of the flashboard, a first pin shaft 7 and a second pin shaft 9 are welded and fixed on the outer circular position of the flashboard to prevent loosening, the other ends of the first pin shaft 7 and the second pin shaft 9 are inserted into an outer circular matching hole of a clamping plate 11 to ensure that the flashboard cannot rotate, the left-right movement range is limited by the clamping plate 11, and the concrete implementation mode is that the clamping plate 11 is fixed on the upper end surface of the supporting plate 1 by a valve rod 10 and a supporting plate 1, after the threads of the valve rod 10 are screwed, the clamping plate 11 cannot rotate and loosen, the first pin shaft 7, the second pin shaft 9 and the flashboard structure adopt a welding mode, a matching gap is reserved, the first pin shaft 7 and the second pin shaft 9 can move left and right, the left-right clearance is adjusted by matching with a first flashboard 3 and a second flashboard 4, and automatic matching sealing with a valve seat 5 is supplemented.
While the utility model has been described in connection with certain embodiments, it is not intended that the utility model be limited thereto; for those skilled in the art to which the present utility model pertains and the related art, on the premise of based on the technical scheme of the present utility model, the expansion, the operation method and the data replacement should all fall within the protection scope of the present utility model.
Claims (5)
1. The utility model provides a round pin axle formula fixture of flat gate valve which characterized in that: including backup pad (1), the central point of backup pad (1) puts and is equipped with round installation mesopore (2), the backup pad (1) outside is equipped with first flashboard (3) and second flashboard (4) through installation mesopore (2) installation, first flashboard (3) and second flashboard (4) are installed on same horizontal plane, one side of first flashboard (3) and second flashboard (4) is equipped with disk seat (5), the top of first flashboard (3) excircle department is equipped with first round pin shaft hole (6), the inside of first round pin shaft hole (6) is equipped with first round pin axle (7), the top of second flashboard excircle department is equipped with second round pin shaft hole (8), the inside of second round pin shaft hole (8) is equipped with second round pin axle (9), valve rod (10) are installed to the upper end of backup pad (1), the lower part of valve rod (10) is the screw thread structure, the screw assembly of screw structure and backup pad (1) upper end through the lower extreme, be equipped with first round pin shaft hole (6) between first flashboard (3) excircle department, the inside of first flashboard (11) is equipped with second round pin shaft hole (11) respectively at the both sides (13) of backup pad (11), the first pin shaft (7) is inserted into the first matching round hole (12), and the second pin shaft (9) is inserted into the second matching round hole (13).
2. The pin clamping mechanism of a flat gate valve according to claim 1, wherein: a left-right movable gap is reserved between the first pin shaft (7) and the first matching round hole (12), a left-right movable gap is reserved between the second pin shaft (9) and the second matching round hole (13), and automatic anastomosis sealing with the valve seat (5) is supplemented.
3. The pin clamping mechanism of a flat gate valve according to claim 2, wherein: the valve is characterized in that a cylindrical spring (14) is arranged between the first flashboard (3) and the second flashboard (4), the cylindrical spring (14) is positioned inside the mounting middle hole (2) of the supporting plate (1), and the cylindrical spring (14) is used for controlling the tight sticking pressure between the first flashboard (3), the second flashboard (4) and the valve seat (5) so as to ensure effective sealing of the valve.
4. The pin clamping mechanism of a flat gate valve according to claim 1, wherein: the first pin shaft (7) is fixed in the first pin shaft hole (6) in a welding mode, the second pin shaft (9) is fixed in the second pin shaft hole (8) in a welding mode, and the first pin shaft (7) and the second pin shaft (9) are prevented from loosening in a welding mode.
5. The pin clamping mechanism of a flat gate valve as set forth in claim 4, wherein: the inside of the clamping plate (11) is provided with a step-shaped positioning clamping groove (15), and the clamping plate (11) is clamped outside the upper end of the supporting plate (1) through the positioning clamping groove (15) and cannot move left and right.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221120978U true CN221120978U (en) | 2024-06-11 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |