CN215487708U - Straight-through type double-turning-plate air locking valve with novel structure - Google Patents
Straight-through type double-turning-plate air locking valve with novel structure Download PDFInfo
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- CN215487708U CN215487708U CN202122109585.9U CN202122109585U CN215487708U CN 215487708 U CN215487708 U CN 215487708U CN 202122109585 U CN202122109585 U CN 202122109585U CN 215487708 U CN215487708 U CN 215487708U
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- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 238000009434 installation Methods 0.000 claims description 57
- 230000007306 turnover Effects 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 28
- 210000004907 gland Anatomy 0.000 claims description 5
- 239000004568 cement Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007962 solid dispersion Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Abstract
The utility model relates to the field of a cyclone preheater flap valve for preheating and predecomposition of a cement kiln, in particular to a straight-through type double-flap air lock valve with a novel structure, which comprises a flap valve shell, an upper connecting cylinder, a lower connecting cylinder, a first flap balance mechanism, a second flap balance mechanism, a first flap body, a second flap body and a first support frame group, wherein the bottom of the upper connecting cylinder is arranged at the upper part of the flap valve shell and welded with the flap valve shell.
Description
Technical Field
The utility model relates to the field of a cyclone preheater flap valve for preheating and predecomposition of a cement kiln, in particular to a straight-through double-flap airlock valve with a novel structure.
Background
The cement kiln preheater system has the main functions of fully utilizing waste heat of waste gas discharged by a rotary kiln and a decomposing furnace to heat raw materials so as to preheat the raw materials and decompose part of carbonate, and has the three functions of uniform gas-solid dispersion, rapid heat exchange and high-efficiency separation in order to improve the heat exchange efficiency between gas and solid to the maximum extent and realize the high quality, high yield and low consumption of the whole calcining system. The flap air locking valve is an important subordinate device in a rotary kiln preheater system, is arranged at a proper position between a feeding pipe of a superior cyclone cylinder and a feeding port of a heat exchange pipeline of the rotary kiln preheater at an outlet of a subordinate cyclone cylinder, generally speaking, the flap air locking valve is used for keeping the feeding pipe to be always in a sealing state, so that the uniform dredging of feeding can be realized, the space of the feeding pipe which cannot be filled by materials can be sealed, and the conditions of airflow short circuit and air leakage caused by pressure difference between the heat exchange pipeline of the rotary kiln preheater at the outlet of the superior cyclone cylinder and the subordinate cyclone cylinder can be avoided to the utmost extent.
The existing air locking valve is generally a single-plate air locking valve, when the air locking valve is opened in the working process, a fan-shaped blanking gap is formed between a movable valve plate and a sealing plate in a valve body, materials in a blanking pipe in the using process flow out from the bottom of the fan-shaped gap when passing through the air locking valve, the upper materials in the fan-shaped gap are few, internal air leakage is easily caused, and then the dust collection efficiency of a cyclone cylinder is reduced and the cone part of the cyclone cylinder is blocked due to the skinning, so that the stability of the heat exchange of a next-stage connecting pipeline is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a straight-through type double-turning-plate air locking valve with a novel structure, which adopts the structural design of a double-valve plate as a whole, and additionally arranges a layout design of a lining oblique-cutting baffle plate at a proper position of a blanking inner cylinder, thereby ensuring the sealing effect of tight joint of a valve plate, solving the problem that internal air leakage is easy to occur in the use process of the existing single-plate air locking valve structure, and ensuring the dust collection efficiency of a cyclone cylinder of the turning-plate air locking valve.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a straight-through type double-turning-plate air lock valve with a novel structure comprises a turning-plate valve shell, an upper connecting cylinder body, a lower connecting cylinder body, a first turning-plate balance mechanism, a second turning-plate balance mechanism, a first turning-plate body, a second turning-plate body, a first support frame group, a second support frame group, a fixed block and a sealing positioning plate, wherein the bottom of the upper connecting cylinder body is arranged at the upper part of the turning-plate valve shell and is welded with the turning-plate valve shell, the top of the lower connecting cylinder body is arranged at the lower side part of the turning-plate valve shell and is welded with the turning-plate valve shell, the first support frame group and the second support frame group are arranged on the outer side wall of the turning-plate valve shell and are fixedly connected with the turning-plate valve shell, a first installation clamping groove and a second installation clamping groove are symmetrically processed on the turning-plate valve shell, the first turning-plate balance mechanism is installed and clamped at the first installation clamping groove, the second turning-plate balance mechanism is installed and clamped at the second installation clamping groove, the plate turnover valve is characterized in that the first plate turnover body is arranged on the first plate turnover balance mechanism and is connected with the first plate turnover balance mechanism, the second plate turnover body is arranged on the second plate turnover balance mechanism and is connected with the second plate turnover balance mechanism, a hollow cavity is arranged in the plate turnover valve shell, a fixed block is fixedly arranged on the inner side wall of the hollow cavity, and the sealing positioning plate is arranged on the fixed block and is fixedly connected with the fixed block.
The included angle between the first installation clamping groove and the second installation clamping groove is 120 degrees.
The whole sealing positioning plate is of a circular annular structure, and a hollow circular hole is formed in the middle of the sealing positioning plate.
The first installation clamping groove and the second installation clamping groove are of a U-shaped groove structure with one side closed and one side open.
The first turnover plate balancing mechanism and the second turnover plate balancing mechanism are the same in structure, the two counterweight arms comprise a first counterweight arm, a second counterweight arm, a first swing arm, a second swing arm, a first mounting and supporting part, a second mounting and supporting part and a turnover shaft, one side of the turnover shaft is arranged on the first mounting and supporting part and extends out of the first mounting and supporting part, one side of the turnover shaft is arranged on the second mounting and supporting part and extends out of the second mounting and supporting part, the first swing arm is arranged at the end part of one side of the turnover shaft and is fixedly connected with the turnover shaft, the second swing arm is arranged at the end part of the other side of the turnover shaft and is fixedly connected with the turnover shaft, the first balance weight arm is arranged on the first swing arm and is connected and arranged with the first swing arm through a connecting bolt, and the second counterweight arm is arranged on the second swing arm and is connected and arranged with the second swing arm through a connecting bolt.
The first installation supporting part and the second installation supporting part are of the same structure and comprise installation bearings, bearing installation seats and hexagonal connecting bolts, the bottoms of the bearing installation seats are installed on the first support frame group and the second support frame group and are respectively fastened and connected with the first support frame group and the second support frame group through the hexagonal connecting bolts, the installation bearings are installed in the bearing installation seats and are connected with the bearing installation seats, and the turnover shaft penetrates through the bearing inner ring part of the installation bearings and is connected with the bearing inner ring of the installation bearings in an interference fit mode.
The first plate body and the second plate body are of the same structure and comprise a valve plate body and a plate mounting frame, wherein a semicircular clamping groove is processed in one side position on the plate mounting frame, the plate mounting frame is clamped on the turnover shaft through the semicircular clamping groove processed in the plate mounting frame and tightly clamped with the turnover shaft, and the valve plate body is mounted on the plate mounting frame and fixedly connected with the plate mounting frame.
Furthermore, a gland is arranged on the turnover shaft and used for sealing a gap between the turnover shaft and the turnover plate valve shell.
Furthermore, a counterweight hammer is arranged on the first counterweight arm and the second counterweight arm close to the outer end, and the counterweight hammer is fastened on the counterweight arm through a fastening bolt.
The utility model has the beneficial effects that: the utility model has scientific integral structure design and convenient installation, operation and use, mainly solves the problems of poor sealing, easy internal air leakage, reduced dust collection efficiency of a cyclone cylinder and crusting and blockage of a cone part of the cyclone cylinder of the existing single-plate air locking turning valve during specific use by the joint installation and cooperation of the components of the turning plate valve shell, the first turning plate balancing mechanism, the second turning plate balancing mechanism, the fixed block, the sealing and positioning plate and the like, particularly, the sealing and positioning plate for sealing and jointing the first turning plate body and the second turning plate body is additionally arranged in the turning plate valve shell, and when a user uses the turning plate valve, the first turning plate balancing mechanism and the second turning plate balancing mechanism can drive the first turning plate body, the second turning plate body and the sealing and positioning plate to joint and seal the turning plate shell, the dust collection efficiency of the cyclone cylinder of the flap latch valve is ensured, and the use requirement of people on the flap latch valve is met.
Drawings
FIG. 1 is a schematic overall front view of the present invention;
FIG. 2 is a schematic overall side view of the present invention;
FIG. 3 is a schematic view of the overall top view of the present invention;
FIG. 4 is a schematic front view of the flap valve housing of the present invention;
FIG. 5 is a schematic top view of the flap valve housing of the present invention;
FIG. 6 is a schematic structural diagram of a first flap balancing mechanism and a second flap balancing mechanism in the present invention;
FIG. 7 is a schematic structural view of a first mounting support and a second mounting support of the present invention;
fig. 8 is a schematic structural view of the first flap body and the second flap body in the present invention;
the reference numbers in the figures are: 1-flap valve housing, 2-upper connecting cylinder, 3-lower connecting cylinder, 4-first flap balance mechanism, 5-second flap balance mechanism, 6-first flap body, 7-second flap body, 8-first support frame group, 9-second support frame group, 10-fixed block, 11-sealing positioning plate, 12-first installation clamping groove, 13-second installation clamping groove, 401-first counterweight arm, 402-second counterweight arm, 403-first swing arm, 404-second swing arm, 405-first installation supporting part, 406-second installation supporting part, 407-turnover shaft, 408-counterweight hammer, 409-gland, 4051-installation bearing, 4052-bearing installation seat, 4053-hexagonal connecting bolt, 601-valve plate body, 602-flap mounting rack, 603-semicircular clamping groove.
Detailed Description
Specific example 1: the technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that: in the present invention, all the embodiments and preferred methods mentioned herein can be combined with each other to form a new technical solution, if not specifically stated. In the present invention, all the technical features mentioned herein and preferred features may be combined with each other to form a new technical solution, if not specifically stated. The "ranges" disclosed herein may have one or more lower limits and one or more upper limits, respectively, in the form of lower limits and upper limits. Unless otherwise defined, technical and scientific terms used herein have the same meaning as is familiar to those skilled in the art. In addition, any methods or materials similar or equivalent to those described herein can also be used in the present invention.
In order to solve the problem that the existing single flap valve is not tightly sealed in the using process and is easy to cause internal air leakage so as to cause the reduction of the dust collecting efficiency of a cyclone cylinder, as shown in the attached drawing 1, the attached drawing 2, the attached drawing 3, the attached drawing 4 and the attached drawing 5 of the specification, the utility model provides a straight-through type double-flap air locking valve with a novel structure, which specifically comprises a flap valve shell 1, an upper connecting cylinder 2, a lower connecting cylinder 3, a first flap balance mechanism 4, a second flap balance mechanism 5, a first flap body 6, a second flap body 7, a first support frame group 8, a second support frame group 9, a fixed block 10 and a sealing positioning plate 11, wherein the bottom of the upper connecting cylinder 2 for allowing materials to enter the flap valve shell 1 is arranged at the upper part of the flap valve shell 1 and welded with the flap valve shell 1, and the top of the lower connecting cylinder 3 for allowing the materials to flow out of the flap valve shell 1 is arranged at the lower side part of the flap valve shell 1 and is welded with the flap valve shell 1 The plate valve shell 1 is welded together, a first support frame group 8 for mounting and supporting the first turning plate balance mechanism 4 and a second support frame group 9 for mounting and supporting the second turning plate balance mechanism 5 are welded on the outer side wall of the plate valve shell 1, a first mounting clamping groove 12 for clamping the first turning plate balance mechanism 4 and a second mounting clamping groove 13 for clamping the second turning plate balance mechanism 5 are symmetrically processed on the plate valve shell 1, the first turning plate balance mechanism 4 is mounted and clamped at the position of the first mounting clamping groove 12, the second turning plate balance mechanism 5 is mounted and clamped at the position of the second mounting clamping groove 13, a first turning plate body 6 for directly sealing the plate valve shell 1 is mounted on the first turning plate balance mechanism 4, a second turning plate body 7 for directly sealing the plate valve shell 1 is mounted on the second turning plate balance mechanism 5, wherein, be a cavity in the flap valve casing 1, fixed mounting has fixed block 10 on the inside wall of cavity for cooperate first flap body 6, the second turns over the sealed locating plate 11 fixed mounting that the board body 7 carries out sealed operation to flap valve casing 1 on fixed block 10, it needs to explain that, become 120 contained angles between the two of first installation slot 12 and second installation slot 13 (the two of first installation slot 12 and second installation slot 13 is one side closed and one side open-ended U type groove structure) and relate to, sealed locating plate 11 wholly is circular ring structure, it has hollow circular port to process in the centre of sealed locating plate 11.
As shown in the attached figure 6, the first flap balance mechanism 4 and the second flap balance mechanism 5 for directly installing and driving the first flap body 6 and the second flap body 7 to work are the same structure, and both comprise a first balance weight arm 401, a second balance weight arm 402, a first swing arm 403, a second swing arm 404, a first installation support part 405, a second installation support part 406 and a turning shaft 407, one side of the turning shaft 407 for directly installing the first flap body 6 and the second flap body 7 is installed on the first installation support part 405 and extends out of the first installation support part 405, the other side of the turning shaft 407 is installed on the second installation support part 406 and extends out of the second installation support part 406, the first swing arm 403 for driving the turning shaft 407 seat to adjust the angle is fixedly installed at the end part of one side of the turning shaft 407, the second swing arm 404 for driving the turning shaft 407 seat to adjust the angle is fixedly installed at the end part of the other side of the turning shaft 407, the first counterweight arm 401 for installing the counterweight hammer 408 is installed on the first swing arm 403 and connected and installed together with the first swing arm 403 through a connecting bolt, and the second counterweight arm 402 for installing the counterweight hammer 408 is installed on the second swing arm 404 and connected and installed together with the second swing arm 404 through a connecting bolt, as shown in the attached figure 7 of the specification, the first installation and support part 405 and the second installation and support part 406 for installing and supporting the overturning shaft 407 are the same structural components, and both comprise an installation bearing 4051, a bearing installation seat 4052 and a hexagonal connecting bolt 4053, the bottom of the bearing installation seat 4052 for installing the bearing 4051 is tightly installed on the first support frame group 8 and the second support frame group 9 through a hexagonal connecting bolt 4053, the installation bearing 4051 for directly installing and supporting the overturning shaft 407 is installed in the bearing installation seat 4052, wherein the overturning shaft 407 penetrates through the bearing inner ring part of the installation bearing 4051 and is in interference fit with the bearing inner ring of the installation bearing 4051 Are matched and connected.
As shown in the attached drawing 8 of the specification, the first flap body 6 and the second flap body 7 for directly performing the turnover sealing operation on the flap valve housing 1 are both composed of the same structure, and the two comprise a valve plate body 601 and a flap mounting bracket 602, wherein a semicircular clamping groove 603 is processed on one side part of the flap mounting bracket 602, the flap mounting bracket 602 for mounting the valve plate body 601 is clamped on a turnover shaft 407 through the semicircular clamping groove 603 processed thereon and tightly clamped with the turnover shaft 407, the valve plate body 601 for directly performing the turnover sealing operation is fixedly mounted on the flap mounting bracket 602, it needs to be described that a gland 409 is mounted on the turnover shaft 407, and the gland 409 is used for performing the sealing operation on a gap between the turnover shaft 407 and the flap valve housing 1.
The installation process of the utility model during specific installation and use is as follows: when in use, the first turning plate body 6 and the second turning plate body 7 are firstly clamped on the turning shaft 407 through the semicircular clamping grooves 603 processed on the turning plate bodies and tightly clamped with the turning shaft 407, the first turning plate balance mechanism 4 provided with the first turning plate body 6 is integrally clamped at the first mounting clamping groove 12 processed on the turning plate shell 1, the second turning plate balance mechanism 5 provided with the second turning plate body 7 is integrally clamped at the second mounting clamping groove 13 processed on the turning plate shell 1, the bottom of the bearing mounting seat 4052 for mounting the bearing 4051 is tightly mounted on the first support frame group 8 and the second support frame group 9 through the hexagonal connecting bolt 4053, after the mounting process is finished, at the moment, the straight-through type double-turning plate air lock valve with the novel structure of the utility model can be mounted at the tail part of the kiln tail preheater, specifically, connecting mounting flanges are arranged at the connecting and mounting ends of the upper connecting cylinder body 2 and the lower connecting cylinder body 3, the upper connecting cylinder body 2 and the lower connecting cylinder body 3 can be connected with an external feeding pipe and an external discharging pipe through connecting and mounting flange plates,
it should be noted that, before installation, integrity check is performed on the through-type double-flap air lock valve of the present invention, if there is deformation and damage during hoisting and transportation, it is necessary to restore to the original intact state of factory, a lifting lug installed on the flap valve housing 1 should be used during hoisting, and other parts are strictly prohibited for hoisting, before use, leveling operation needs to be performed on the counterweight arm of the through-type double-flap air lock valve of the present invention, specifically, it can be adjusted by adjusting the position of the counterweight hammer 408 on the counterweight arm, specifically, it is adjusted to be able to lift the counterweight arm by only using about 1N (0.1kg) force, after release, the counterweight arm can be flexibly closed under the driving of the counterweight hammer 408 (in the process that the counterweight hammer 408 drives the counterweight arm to move down, the first counterweight arm 401 drives the first swing arm 403 to move down, the second swing arm 402 drives the second swing arm 404 to move down, the first swing arm 403 and the second swing arm 404 drive the counter-clockwise rotation shaft 407 in the first flap balance mechanism 4, the first swing arm 403 and the second swing arm 404 drive the turning shaft 407 of the second flap balance mechanism 5 to rotate clockwise, at this time, the first flap body 6 and the second flap body 7 which are arranged on the turning shaft 407 are contacted with the sealing positioning plate 11 in the flap valve shell 1 through the valve plate body 601 arranged on the first flap body, thereby realizing the joint sealing and ensuring the sealing effect of the tight joint of the valve plate body 601), solving the problem that the existing single-plate air locking valve structure is easy to leak air in the using process, the above-mentioned embodiments are merely preferred embodiments of the present invention, not limiting the scope of the present invention, and can be applied to other products with different structures in different fields, regardless of the center distance, the number of holes in the holes, and the size, so that all equivalent changes or modifications made according to the structure, features, and principles described in the present invention should be included in the scope of the present invention.
Claims (9)
1. A straight-through type double-flap airlock valve with a novel structure is characterized by comprising a flap valve shell (1), an upper-joint cylinder body (2), a lower-joint cylinder body (3), a first flap balance mechanism (4), a second flap balance mechanism (5), a first flap body (6), a second flap body (7), a first support frame group (8), a second support frame group (9), a fixed block (10) and a sealing positioning plate (11), wherein the bottom of the upper-joint cylinder body (2) is arranged at the upper part of the flap valve shell (1) and welded with the flap valve shell (1), the top of the lower-joint cylinder body (3) is arranged at the lower side part of the flap valve shell (1) and welded with the flap valve shell (1), the first support frame group (8) and the second support frame group (9) are arranged on the outer side wall of the flap valve shell (1) and fixedly connected with the flap valve shell (1), a first mounting clamping groove (12) and a second mounting clamping groove (13) are symmetrically processed on the flap valve shell (1), the first turnover plate balance mechanism (4) is installed and clamped at the position of the first installation clamping groove (12), the second turnover plate balance mechanism (5) is installed and clamped at the position of the second installation clamping groove (13), the first flap body (6) is arranged on the first flap balance mechanism (4) and is connected with the first flap balance mechanism (4), the second flap body (7) is arranged on the second flap balance mechanism (5) and is connected with the second flap balance mechanism (5), a hollow cavity is arranged in the flap valve shell (1), fixed block (10) are fixedly installed on the inner side wall of the hollow cavity, and the sealing positioning plate (11) is installed on the fixed block (10) and fixedly connected with the fixed block (10).
2. A new structure of straight-through type double-flap airlock valve according to claim 1, wherein the angle between the first mounting slot (12) and the second mounting slot (13) is 120 °.
3. A through type double-flap airlock valve with a novel structure according to claim 1, wherein the whole sealing positioning plate (11) is of a circular ring structure, and a hollow circular hole is arranged in the middle of the sealing positioning plate (11).
4. A straight-through type double-flap airlock valve with a novel structure as claimed in claim 1, wherein the first mounting groove (12) and the second mounting groove (13) are both of a U-shaped groove structure with one side closed and one side open.
5. A through type double-flap airlock valve with a novel structure according to claim 1, wherein the first flap balance mechanism (4) and the second flap balance mechanism (5) are of the same structure, and comprise a first balance weight arm (401), a second balance weight arm (402), a first swing arm (403), a second swing arm (404), a first installation and support part (405), a second installation and support part (406) and a turning shaft (407), one side of the turning shaft (407) is installed on the first installation and support part (405) and extends out of the first installation and support part (405), one side of the turning shaft (407) is installed on the second installation and support part (406) and extends out of the second installation and support part (406), the first swing arm (403) is installed at the end part of one side of the turning shaft (407) and is fixedly connected with the turning shaft (407), the second swing arm (404) is installed at the end part of the other side of the overturning shaft (407) and is fixedly connected with the overturning shaft (407), the first counterweight arm (401) is installed on the first swing arm (403) and is connected and installed together with the first swing arm (403) through a connecting bolt, and the second counterweight arm (402) is installed on the second swing arm (404) and is connected and installed together with the second swing arm (404) through a connecting bolt.
6. A through type double-flap airlock valve with a novel structure according to claim 5, wherein the first installation supporting part (405) and the second installation supporting part (406) are both composed of the same structure, the two comprise a mounting bearing (4051), a bearing mounting seat (4052) and a hexagonal connecting bolt (4053), the bottom of the bearing mounting seat (4052) is arranged on the first support frame group (8) and the second support frame group (9) and is respectively fastened and connected with the first support frame group (8) and the second support frame group (9) through a hexagonal connecting bolt (4053), the mounting bearing (4051) is mounted in the bearing mounting seat (4052) and connected with the bearing mounting seat (4052), the overturning shaft (407) penetrates through the bearing inner ring part of the mounting bearing (4051) and is connected with the bearing inner ring of the mounting bearing (4051) in an interference fit manner.
7. A through type double-flap airlock valve with a novel structure according to claim 5 is characterized in that the first flap body (6) and the second flap body (7) are of the same structure, the two comprise a valve plate body (601) and a flap mounting bracket (602), a semicircular clamping groove (603) is processed on one side part of the flap mounting bracket (602), the flap mounting bracket (602) is clamped on the turning shaft (407) through the semicircular clamping groove (603) processed on the flap mounting bracket and tightly clamped with the turning shaft (407), and the valve plate body (601) is mounted on the flap mounting bracket (602) and fixedly connected with the flap mounting bracket (602).
8. A straight-through type double-flap airlock valve with a novel structure according to claim 7, wherein a gland (409) is installed on the turning shaft (407), and the gland (409) is used for sealing the gap between the turning shaft (407) and the flap valve housing (1).
9. A through type double-flap airlock valve with a novel structure as claimed in claim 5, wherein a counterweight hammer (408) is mounted on the first counterweight arm (401) and the second counterweight arm (402) near the outer end, and the counterweight hammer (408) is fastened on the counterweight arms through fastening bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122109585.9U CN215487708U (en) | 2021-09-02 | 2021-09-02 | Straight-through type double-turning-plate air locking valve with novel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122109585.9U CN215487708U (en) | 2021-09-02 | 2021-09-02 | Straight-through type double-turning-plate air locking valve with novel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215487708U true CN215487708U (en) | 2022-01-11 |
Family
ID=79767457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122109585.9U Expired - Fee Related CN215487708U (en) | 2021-09-02 | 2021-09-02 | Straight-through type double-turning-plate air locking valve with novel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215487708U (en) |
-
2021
- 2021-09-02 CN CN202122109585.9U patent/CN215487708U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220111 |