CN113233366B - Connecting device is strengthened in construction of reducing tower - Google Patents
Connecting device is strengthened in construction of reducing tower Download PDFInfo
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- CN113233366B CN113233366B CN202110450395.5A CN202110450395A CN113233366B CN 113233366 B CN113233366 B CN 113233366B CN 202110450395 A CN202110450395 A CN 202110450395A CN 113233366 B CN113233366 B CN 113233366B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F13/00—Common constructional features or accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/02—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
Abstract
The invention discloses a construction reinforced connecting device for a variable-diameter tower, which comprises a variable-diameter tower body, a connecting rod and a connecting rod, wherein the variable-diameter tower body comprises a tower wall, a tower column arranged in the variable-diameter tower and a hydraulic jacking device arranged in the tower column; and the connecting assembly comprises an annular expansion ring arranged on the tower wall, a first channel steel arranged on the expansion ring and a second channel steel arranged between the first channel steel and the tower wall, and the lower end of the tower column is provided with a lifting head abutted to the first channel steel.
Description
Technical Field
The invention relates to the technical field of construction of variable-diameter towers, in particular to a reinforced connecting device for construction of variable-diameter towers.
Background
In recent years, large supercritical and above units gradually become the main units of thermal power plants, and according to the relevant regulations of national energy conservation, emission reduction and environmental protection: the boiler flue gas desulfurization system of the thermal power plant needs to be designed, constructed and operated simultaneously when the boiler flue gas desulfurization system is designed, constructed and operated.
The boiler flue gas desulfurization generally adopts a limestone-gypsum wet desulfurization process, and a flue gas desulfurization absorption tower is one of important devices of the process. The absorption tower needs to be assembled and installed on site due to the characteristics of large volume, wide inner diameter, heavy weight and the like, and the auxiliary equipment of the absorption tower is synchronously installed along with the assembly of the absorption tower. The installation method of the absorption tower comprises the following steps: the normal installation method adopts one or two truck cranes for matching assembly, the truck cranes are installed layer by layer from the first layer, the installation is very inconvenient, the overall structure has poor support, and a connecting structure with a support function is further needed.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and title of the application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The invention is provided in view of the problems of the prior art of the construction reinforced connecting device of the variable-diameter tower.
Therefore, the invention aims to provide a construction reinforced connecting device for a variable-diameter tower.
In order to solve the technical problems, the invention provides the following technical scheme: a construction reinforced connecting device for a variable-diameter tower comprises a variable-diameter tower body, a connecting rod and a connecting rod, wherein the variable-diameter tower body comprises a tower wall, a tower column arranged in the variable-diameter tower and a hydraulic jacking device arranged in the tower column; and the connecting assembly comprises an annular expansion ring arranged on the tower wall, a first channel steel arranged on the expansion ring and a second channel steel arranged between the first channel steel and the tower wall, and the lower end of the tower column is provided with a lifting head abutted to the first channel steel.
As a preferred scheme of the construction reinforced connecting device for the variable-diameter tower, the construction reinforced connecting device comprises the following components: the utility model discloses a tower wall, including first channel-section steel, second channel-section steel, first telescopic link, slider and tower wall, first channel-section steel front end is provided with the otic placode, the second channel-section steel rotates with the otic placode to be connected, second channel-section steel front end is provided with first telescopic link, first telescopic link is close to tower wall one end and articulates there is the slider, the slider slides with the tower wall and is connected, be equipped with driver part between tower wall and the slider.
As a preferred scheme of the connecting device is strengthened in the construction of the reducing tower, wherein: the driving part comprises a chute arranged in the tower wall, a sliding rod connected in the chute in a sliding way and a lantern ring sleeved on the sliding rod, the lantern ring is connected with the chute, a rotating shaft extends outwards from the lantern ring, a driving part is connected to the rotating shaft in a rotating way,
wherein, an operating handle extends outwards from the driving piece.
As a preferred scheme of the construction reinforced connecting device for the variable-diameter tower, the construction reinforced connecting device comprises the following components: the driving piece comprises a gear which is rotationally connected with the rotating shaft, a winding belt which is arranged on the gear and close to the side wall of the sliding rod, and a latch which is arranged on the side wall of the sliding rod and is matched with the winding belt,
the rotating shaft is provided with a sleeve, the sleeve extends out of the connecting rod, the connecting rod is provided with a clamping part, and the operating handle is connected with the sleeve.
As a preferred scheme of the construction reinforced connecting device for the variable-diameter tower, the construction reinforced connecting device comprises the following components: the clamping and stopping piece comprises a concave block rotationally connected with the connecting rod, a bending rod extending out of the concave block and a driving tooth block which is arranged at the end part of the bending rod and is meshed with the gear,
and a second telescopic rod is connected between the bending rod and the concave block.
As a preferred scheme of the construction reinforced connecting device for the variable-diameter tower, the construction reinforced connecting device comprises the following components: an elastic piece is arranged inside the second telescopic rod.
As a preferred scheme of the connecting device is strengthened in the construction of the reducing tower, wherein: the end of pivot is provided with the screw rod, the screw rod tip is provided with square piece, threaded connection has the locking lid on the screw rod, locking lid upper end be provided with square piece complex rubber buckle.
As a preferred scheme of the construction reinforced connecting device for the variable-diameter tower, the construction reinforced connecting device comprises the following components: a rubber drawstring is arranged between the rubber buckle and the locking block, and rubber protrusions are arranged on the rubber drawstring.
As a preferred scheme of the construction reinforced connecting device for the variable-diameter tower, the construction reinforced connecting device comprises the following components: the operating handle extends outwards out of the tower wall, and an arc-shaped groove matched with the operating handle is formed in the tower wall.
The invention has the beneficial effects that: the operator is when carrying out reducing tower construction, and after the operator was under construction the reducing tower, the operator can install tower wall and column, then installs first channel-section steel earlier, then installs the second channel-section steel again for the second channel-section steel can carry out the butt with column and tower wall, and then can support the tower wall reducing part.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic view of the overall structure of the construction reinforced connecting device for the variable diameter tower.
Fig. 2 is a schematic structural diagram of a driving part of the construction reinforced connecting device for the variable-diameter tower.
Fig. 3 is a schematic view of a gear structure of the construction reinforced connecting device for the variable diameter tower.
Fig. 4 is a schematic structural diagram of a locking cover of the variable-diameter tower construction reinforced connection device.
Fig. 5 is a schematic view of a clamping fastener structure of the diameter-variable tower construction reinforcing connecting device.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and it will be appreciated by those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the present invention and that the present invention is not limited by the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Furthermore, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional view illustrating the structure of the device is not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Example 1
Referring to fig. 1-5, the reinforced connecting device for construction of the variable-diameter tower comprises a variable-diameter tower body 100, a tower wall 101, a tower column 102 and a hydraulic jacking device 103, wherein the tower column 102 is arranged in the variable-diameter tower; and the connecting assembly 200 comprises an expanding ring 201 annularly arranged on the tower wall 101, a first channel steel 202 arranged on the expanding ring 201 and a second channel steel 203 arranged between the first channel steel 202 and the tower wall 101, and a lifting head abutted against the first channel steel 202 is arranged at the lower end of the tower column 102.
Specifically, the main structure of the invention comprises a reducing tower body 100, in this embodiment, the reducing tower body 100 comprises a tower wall 101, the tower wall 101 is the outer wall of the whole reducing tower and is the outside of the whole reducing tower, then a plurality of towers 102 are arranged inside the reducing tower, the towers 102 are arranged in the vertical direction, the towers 102 are as close as possible to the tower wall 101, then the whole reducing tower can be supported, and then a hydraulic jacking device 103 is arranged in each tower 102.
Further, the main body of the invention further comprises a connecting assembly 200, in this embodiment, the connecting assembly 200 includes an expanding ring 201 annularly arranged on the tower wall 101, the expanding ring 201 is annular and is connected to the inner wall of the tower wall 101 through welding or bolts, then a first channel steel 202 is further arranged on the expanding ring 201, the first channel steel 202 extends out along the radial direction of the tower wall 101 and extends to the lower end position of the hydraulic jacking device 103 and is placed on the lower end extending part of the hydraulic jacking device 103, then a second channel steel 203 is arranged at one end of the first channel steel 202 close to the tower column 102, the second channel steel 203 is obliquely arranged, and the other end is connected with the tower wall 101.
The operation process is as follows: the operator is when carrying out reducing tower construction, and the operator is under construction the reducing tower after, and the operator can install tower wall 101 and tower 102, then will install first channel-section steel 202 earlier, then installs second channel-section steel 203 again for second channel-section steel 203 can carry out the butt with tower 102 and tower wall 101, and then can support tower wall 101 reducing part.
Example 2
Referring to fig. 1-5, this embodiment differs from the first embodiment in that: the front end of the first channel steel 202 is provided with an ear plate, the second channel steel 203 is rotatably connected with the ear plate, the front end of the second channel steel 203 is provided with a first telescopic rod 204, one end of the first telescopic rod 204 close to the tower wall 101 is hinged with a slide block 205, the slide block 205 is connected with the tower wall 101 in a sliding manner, a driving part 300 is arranged between the tower wall 101 and the slide block 205, the driving part 300 comprises a chute 301 arranged in the tower wall 101, a slide rod 302 connected in the chute 301 in a sliding manner and a lantern ring 303 sleeved on the slide rod 302, the lantern ring 303 is connected with the chute 301, a rotating shaft 304 extends outwards from the lantern ring 303, the rotating shaft 304 is rotatably connected with a driving part 400, wherein an operating handle 305 extends outwards from the driving part 400, the driving part 400 comprises a gear 401 rotatably connected on the rotating shaft 304, a winding belt 402 arranged on the gear 401 close to the slide rod 302 and a latch 403 arranged on the side wall of the slide rod 302 and matched with the winding belt 402, wherein the rotating shaft 304 is provided with the sleeve 404, a connecting rod 405 extends outwards from the sleeve 404, a clamping stop 500 is arranged on the connecting rod 405, the operating handle 305 is connected with the sleeve 404, the clamping stop 500 comprises a concave block 501 which is rotationally connected with the connecting rod 405, a bending rod 502 which extends from the concave block 501, and a driving tooth block 503 which is arranged at the end part of the bending rod 502 and is meshed with the gear 401, the second telescopic rod 504 is connected between the bent rod 502 and the concave block 501, an elastic piece is arranged inside the second telescopic rod 504, a screw 505 is arranged at the end of the rotating shaft 304, a square block 506 is arranged at the end of the screw 505, a locking cover 507 is connected to the screw 505 in a threaded manner, a rubber buckle 508 matched with the square block 506 is arranged at the upper end of the locking cover 507, a rubber drawstring is arranged between the rubber buckle 508 and the square block 506, a rubber bulge is arranged on the rubber drawstring, the operating handle 305 extends out of the tower wall 101, and an arc-shaped groove matched with the operating handle 305 is formed in the tower wall 101.
Specifically, the front end position of first channel-section steel 202 is fixed with the otic placode, the otic placode makes second channel-section steel 203 can rotate and connect, and then can adjust the angle between second channel-section steel 203 and the first channel-section steel 202, still be provided with first telescopic link 204 at the front end of second channel-section steel 203 simultaneously, first telescopic link 204 can stretch out and draw back, and then second channel-section steel 203 after the cooperation angle adjustment still can butt tower wall 101, then it has slider 205 to be close to that tower wall 101 one end is articulated at first telescopic link 204, slider 205 slides with tower wall 101 and is connected, be equipped with driver part 300 between tower wall 101 and the slider 205.
Further, in this embodiment, the driving part 300 includes the spout 301 that sets up in the tower wall 101, the spout 301 is seted up along vertical direction, then sliding connection has the slide bar 302 in the spout 301, still the cover is equipped with the lantern ring 303 on the slide bar 302, the outer wall of lantern ring 303 is fixed with spout 301 inner wall, the through-hole has been seted up to inside, supply the slide bar 302 to slide along vertical direction, then outwards stretch out on the one end lateral wall of lantern ring 303 has the pivot 304, the pivot 304 sets up along the horizontal direction, and outwards stretch out, then be provided with driving piece 400 in the pivot 304, driving piece 400 can drive the removal of slide bar 302.
Further, in this embodiment, the driving member 400 includes a gear 401 rotatably connected to the rotating shaft 304, a rotating plane of the gear 401 is vertically disposed, then a winding belt 402 is further disposed on a side of the gear 401 close to the sliding rod 302, the winding belt 402 protrudes outwards and is shaped as a spiral winding, and one end of the winding belt extends out, the number of winding turns of the spiral winding is 1 and a half, then a plurality of latches 403 matched with the winding belt 402 are further uniformly disposed on the sliding rod 302, when the gear 401 rotates, the winding belt 402 is continuously matched with the latches 403 and can rotate to make the winding belt 402 match with the latches 403, and then the sliding rod 302 moves upwards or downwards.
Further, a sleeve 404 is provided on the rotating shaft 304, a connecting rod 405 is further extended outward from the sleeve 404, a locking piece 500 is provided at an end of the connecting rod 405, the locking piece 500 can rotate the gear 401 and can adjust the moving direction, an operation handle 305 is further fixed to the sleeve 404, the operation handle 305 is controlled by an operator, and the operator can adjust the operation handle.
In this embodiment, the locking member 500 includes a concave block 501 rotatably connected to the connecting rod 405, a rotation plane of the concave block 501 is parallel to the gear 401, a bending rod 502 extends outward from the concave block 501, a bent end of the bending rod 502 abuts against the gear 401, and a driving toothed block 503 is fixed to an end of the bending rod, the driving toothed block 503 is engaged with the gear 401, and when the driving slide bar 302 is lifted, the bending rod 502 is rotated in a direction away from the operating handle 305, and then the position of the concave block 501 is fixed by using an interference connection between the concave block 501 and the connecting rod 405, at this time, by rotating the operating handle 305, the movement of the bending rod 502 and the rotation of the gear 401 can be realized.
Preferably, a second telescopic rod 504 is connected between the bending rod 502 and the concave block 501, an elastic member is arranged inside the second telescopic rod 504, the bending rod 502 can always move towards the concave block 501, a screw 505 is further arranged at the end of the rotating shaft 304, the screw 505 extends outwards, a locking cover 507 is further in threaded connection with the screw 505, and after the locking cover 507 is in threaded connection, the sleeve 404 can be covered but the rotation of the sleeve 404 is not hindered, and the sleeve 404 is prevented from sliding out of the rotating shaft 304 when rotating.
Then still be provided with square 506 at the tip of screw rod 505, then still be provided with on locking lid 507 with square 506 complex rubber buckle 508, rubber buckle 508 can play the positioning action to operator's installation locking lid 507, is provided with the rubber stretching strap simultaneously between rubber buckle 508 and square 506, the rubber stretching strap can make rubber buckle 508 can be more convenient when the installation, is provided with the rubber arch on the rubber stretching strap simultaneously, makes things convenient for operator's operation.
Furthermore, the operating handle 305 is bent to form an extension rod, and extends outward, and an arc-shaped groove is further formed in the tower wall 101, so that an operator can operate the tower more conveniently.
The rest of the structure is the same as in example 1.
The operation process is as follows: when an operator adjusts the height, the operator rotates the operating handle 305, so that the sleeve 404 drives the concave block 501 to rotate, then the driving toothed block 503 is continuously matched with the gear 401, then the gear 401 is pushed to move integrally, and then the sliding rod 302 is continuously lifted or lowered by utilizing the matching between the winding belt 402 at the rear end and the latch 403, thereby adjusting the height.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (8)
1. The utility model provides a connecting device is strengthened in construction of reducing tower which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the variable-diameter tower comprises a variable-diameter tower body (100) and a variable-diameter tower body, wherein the variable-diameter tower body comprises a tower wall (101), a tower column (102) arranged in the variable-diameter tower, and a hydraulic jacking device (103) arranged in the tower column (102); and the number of the first and second groups,
coupling assembling (200), including annular expander ring (201), first channel-section steel (202) and second channel-section steel (203) of setting between first channel-section steel (202) and tower wall (101) of setting on tower wall (101), column (102) lower extreme is provided with the lifting head with first channel-section steel (202) butt, first channel-section steel (202) front end is provided with the otic placode, second channel-section steel (203) rotate with the otic placode and are connected, second channel-section steel (203) front end is provided with first telescopic link (204), first telescopic link (204) are close to that tower wall (101) one end articulates there is slider (205), slider (205) slide with tower wall (101) and are connected, be equipped with driver part (300) between tower wall (101) and slider (205).
2. The connecting device is strengthened in construction of reducing tower of claim 1, characterized in that: the driving part (300) comprises a chute (301) arranged in the tower wall (101), a sliding rod (302) connected in the chute (301) in a sliding way and a sleeve ring (303) sleeved on the sliding rod (302), the sleeve ring (303) is connected with the chute (301), a rotating shaft (304) extends outwards from the sleeve ring (303), and a driving part (400) is rotatably connected to the rotating shaft (304),
wherein, an operating handle (305) extends outwards from the driving piece (400).
3. The connecting device is strengthened in construction of reducing tower of claim 2, characterized in that: the driving piece (400) comprises a gear (401) rotationally connected to the rotating shaft (304), a winding belt (402) arranged on the gear (401) and close to the side wall of the sliding rod (302), and a latch (403) arranged on the side wall of the sliding rod (302) and matched with the winding belt (402),
wherein, be provided with sleeve (404) on pivot (304), connecting rod (405) outwards stretches out on sleeve (404), be provided with fastener (500) on connecting rod (405), operating handle (305) links to each other with sleeve (404).
4. The connecting device is strengthened in construction of reducing tower of claim 3, characterized in that: the clamping part (500) comprises a concave block (501) rotationally connected with the connecting rod (405), a bent rod (502) extending from the concave block (501) and a driving tooth block (503) which is arranged at the end part of the bent rod (502) and is engaged with the gear (401),
wherein a second telescopic rod (504) is connected between the bending rod (502) and the concave block (501).
5. The connecting device is strengthened in construction of reducing tower of claim 4, characterized in that: an elastic piece is arranged in the second telescopic rod (504).
6. The connecting device is strengthened in construction of reducing tower of claim 3, characterized in that: the end part of the rotating shaft (304) is provided with a screw rod (505), the end part of the screw rod (505) is provided with a square block (506), the screw rod (505) is connected with a locking cover (507) in a threaded manner, and the upper end of the locking cover (507) is provided with a rubber buckle (508) matched with the square block (506).
7. The connecting device is strengthened in construction of reducing tower of claim 6, characterized in that: a rubber drawstring is arranged between the rubber buckle (508) and the locking block, and rubber bulges are arranged on the rubber drawstring.
8. The connecting device is strengthened in construction of reducing tower of claim 3, characterized in that: the operating handle (305) extends out of the tower wall (101), and an arc-shaped groove matched with the operating handle (305) is formed in the tower wall (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110450395.5A CN113233366B (en) | 2021-04-25 | 2021-04-25 | Connecting device is strengthened in construction of reducing tower |
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| CN202110450395.5A CN113233366B (en) | 2021-04-25 | 2021-04-25 | Connecting device is strengthened in construction of reducing tower |
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| CN113233366B true CN113233366B (en) | 2022-08-26 |
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