CN219636716U - Concrete drain pipe hoist device - Google Patents
Concrete drain pipe hoist device Download PDFInfo
- Publication number
- CN219636716U CN219636716U CN202320531315.3U CN202320531315U CN219636716U CN 219636716 U CN219636716 U CN 219636716U CN 202320531315 U CN202320531315 U CN 202320531315U CN 219636716 U CN219636716 U CN 219636716U
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- Prior art keywords
- rod
- clamping
- slider
- screw
- concrete drain
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- 239000004567 concrete Substances 0.000 title claims abstract description 35
- 230000001360 synchronised effect Effects 0.000 claims description 25
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- Y02E10/20—Hydro energy
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- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model provides a concrete drain pipe lifting device, and belongs to the technical field of drain pipe lifting; concrete drain pipe hoist device includes: the device comprises a main frame, a screw rod, a chute, a first sliding block and a moving rod; through with in the lead screw embedding clamping rod, make the both ends of lead screw be connected with the clamping rod respectively to make first slider suit in the outside of lead screw, in order to realize that the clamping rod supports the both ends of lead screw, thereby promote the stability of lead screw, avoid the one end of lead screw to receive the gravity whereabouts because of not supporting, lead to first slider to take place because of the contact of the inner wall of clamping rod and the unable gliding condition takes place on the lead screw, and then promote the flexibility that first slider removed. The movable rod is connected with the first sliding block, and the movable rod is wound on the outer side of the clamping rod, so that the first sliding block and the movable rod move synchronously, the integral length of the movable rod and the clamping rod is adjusted, drain pipes of different specifications are adapted, and the applicability of products is improved.
Description
Technical Field
The utility model belongs to the technical field of drain pipe hoisting, and particularly relates to a concrete drain pipe hoisting device.
Background
In the related art, when a concrete drain pipe is laid, it is necessary to move the concrete drain pipe to a designated position by a hoisting apparatus. When the steel wire rope is used for hoisting the concrete drain pipe, the concrete drain pipe needs to be manually fixed in an auxiliary mode, so that the workload is increased, and the concrete drain pipe needs to be hoisted through a hoisting tool.
The prior art (authorized bulletin number: CN 218538974U) discloses a reinforced concrete drain pipe lifting device, the device rotates the threaded rod through the rocker, the threaded sleeve drives the front end of the main frame to adjust, and slides in the sliding groove through the sliding block, the limit of the device is reinforced, the stop block is tightly attached to the drain pipe, the fixing is improved, and the lifting stability is improved.
In this prior art, because the main frame supports the one end of threaded rod, and the other end of threaded rod is not supported, lead to the threaded rod to drop because of gravity easily to cause the thread bush to laminate with the inner wall of first installation chamber and/or second installation chamber mutually, and then reduced the flexibility that the thread bush removed.
Disclosure of Invention
In order to solve the problem that in the prior art, one end of a threaded rod is supported by a main frame, the other end of the threaded rod is not supported, the threaded rod is easy to fall down due to gravity, so that a thread bush is attached to the inner wall of a first installation cavity and/or a second installation cavity, and the movement flexibility of the thread bush is reduced. The specific technical scheme is as follows:
concrete drain pipe hoist device, concrete drain pipe hoist device includes: the device comprises a main frame, a screw rod, a chute, a first sliding block and a moving rod; the main frame comprises two clamping connection rods and a connecting rod, wherein the clamping connection rods are hollow cavities, two ends of the connecting rod are respectively connected with the two clamping connection rods, and the two clamping connection rods are perpendicular to the connecting rod; the outer wall of the screw rod is provided with a first external thread, the screw rod is embedded into the clamping connection rod, and two ends of the screw rod are respectively connected with the clamping connection rod in a rotating way; the two sliding grooves are arranged at the upper end and the lower end of the clamping connection rod; a first internal thread is arranged in the first sliding block, the first sliding block is sleeved on the outer side of the screw rod, and the upper end and the lower end of the first sliding block respectively pass through the two sliding grooves; the movable rod is a hollow cavity with an opening at one end, the movable rod is wound on the outer side of the clamping rod, the first sliding block is embedded into the opening of the movable rod, and the first sliding block is connected with the movable rod; wherein, first external screw thread and first internal screw thread looks adaptation.
In addition, the concrete drain pipe lifting device in the technical scheme provided by the utility model can also have the following additional technical characteristics:
in the above technical scheme, concrete drain pipe hoist device still includes: a second slider; the second slider is provided with first internal thread in the second slider, and the second slider suit is in the outside of lead screw, and the second slider is located one side of first slider, and the second slider is connected with the movable rod.
In the above technical scheme, concrete drain pipe hoist device still includes: a synchronizing wheel and a synchronous belt; the two synchronizing wheels are respectively sleeved on the outer sides of the two lead screws, and the synchronizing wheels are positioned on the outer sides of the main frame; the synchronous belt is sleeved on the outer sides of the two synchronous wheels at the same time.
In the above technical scheme, concrete drain pipe hoist device still includes: a handle; the handle sleeve is arranged on the outer side of a screw rod, and the handle is positioned on the outer side of a synchronous wheel.
In the above technical scheme, the clamping rod includes: the clamping rod comprises a clamping rod body, a containing groove and a plug; the clamping rod body is a hollow cavity with an opening at one end; the accommodating groove is internally provided with a second internal thread and is arranged at the opening of the clamping rod body; the outer wall of the plug is provided with a second external thread, and the plug is embedded into the accommodating groove; one end of the screw rod is rotationally connected with the clamping rod body, the other end of the screw rod is rotationally connected with the plugging, and the second internal thread is matched with the second external thread.
In the above technical scheme, concrete drain pipe hoist device still includes: a first bearing and a second bearing; the first bearing is sleeved on the outer side of the screw rod and is embedded into the clamping rod body; the second bearing is sleeved on the outer side of the screw rod, and the second bearing is embedded into the plug.
In the above technical scheme, concrete drain pipe hoist device still includes: the first lifting ring and the second lifting ring; the two first hanging rings are connected with a movable rod; the second hanging ring is connected with the clamping connection rod.
Compared with the prior art, the concrete drain pipe lifting device has the beneficial effects that:
1. through with in the lead screw embedding clamping rod, make the both ends of lead screw be connected with the clamping rod respectively to make first slider suit in the outside of lead screw, in order to realize that the clamping rod supports the both ends of lead screw, thereby promote the stability of lead screw, avoid the one end of lead screw to receive the gravity whereabouts because of not supporting, lead to first slider to take place because of the contact of the inner wall of clamping rod and the unable gliding condition takes place on the lead screw, and then promote the flexibility that first slider removed. The movable rod is connected with the first sliding block, and the movable rod is wound on the outer side of the clamping rod, so that the first sliding block and the movable rod move synchronously, the integral length of the movable rod and the clamping rod is adjusted, drain pipes of different specifications are adapted, and the applicability of products is improved.
2. Through with second slider suit in the outside of lead screw, make the second slider be located one side of first slider to be connected with the second slider with the movable rod, with the realization second slider with the synchronous motion of movable rod, thereby realize that the lead screw drives second slider and movable rod and remove, and then promote the stability that the movable rod removed.
3. The two synchronous wheels are respectively sleeved on the outer sides of the two lead screws, and the synchronous belt is sleeved on the outer sides of the two synchronous wheels at the same time, so that when one lead screw rotates, the other lead screw is driven to rotate by the two synchronous wheels and the synchronous belt, and synchronous rotation of the two lead screws is realized.
4. The handle is sleeved on the outer side of the screw rod, and is positioned on the outer side of the synchronous wheel, so that the screw rod is driven to rotate by rotating the handle, the difficulty of rotating the screw rod is reduced, and the use experience of a product is improved.
5. The clamping connection rod body is plugged through plugging, so that the screw rod is embedded into the clamping connection rod body, and the screw rod is convenient to detach.
6. The first bearing is sleeved on the outer side of the screw rod, and the first bearing is embedded into the clamping rod body, so that the clamping rod body supports the screw rod through the first bearing, and the flexibility of rotation of the screw rod is improved; the second bearing is sleeved on the outer side of the screw rod, and the second bearing is embedded into the plug, so that the plug supports the screw rod through the second bearing, and the flexibility of screw rod rotation is improved.
7. The two first hanging rings are connected with the movable rod, and the second hanging rings are connected with the clamping connecting rod, so that the hanging arrangement is connected with the movable rod and the clamping connecting rod, and the use experience of a product is improved.
Drawings
FIG. 1 is a cross-sectional view of a concrete drain hoisting device of the present utility model;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
wherein, the correspondence between the reference numerals and the component names in fig. 1 to 3 is:
10 main frame, 101 clamping rod, 1011 clamping rod body, 1012 shutoff, 102 connecting rod, 11 lead screw, 12 spout, 13 first slider, 14 movable rod, 15 second slider, 16 synchronizing wheel, 17 hold-in range, 18 handle, 19 first bearing, 20 second bearing, 21 first rings, 22 second rings.
Detailed Description
The utility model will be further described with reference to specific embodiments and figures 1-3, but the utility model is not limited to these embodiments.
As shown in fig. 1 to 3, the concrete drain pipe lifting device includes: a main frame 10, a screw 11, a chute 12, a first slider 13 and a moving rod 14; the main frame 10 comprises two clamping connection rods 101 and a connecting rod 102, wherein the clamping connection rods 101 are hollow cavities, two ends of the connecting rod 102 are respectively connected with the two clamping connection rods 101, and the two clamping connection rods 101 are perpendicular to the connecting rod 102; the outer wall of the screw rod 11 is provided with a first external thread, the screw rod 11 is embedded into the clamping rod 101, and two ends of the screw rod 11 are respectively connected with the clamping rod 101 in a rotating way; two sliding grooves 12 are arranged at the upper end and the lower end of the clamping connection rod 101; a first internal thread is arranged in the first sliding block 13, the first sliding block 13 is sleeved on the outer side of the screw rod 11, and the upper end and the lower end of the first sliding block 13 respectively pass through the two sliding grooves 12; the movable rod 14 is a hollow cavity with an opening at one end, the movable rod 14 is wound on the outer side of the clamping rod 101, the first sliding block 13 is embedded into the opening of the movable rod 14, and the first sliding block 13 is connected with the movable rod 14; wherein, first external screw thread and first internal screw thread looks adaptation.
The clamping connection rod 101 is arranged as a hollow cavity, so that an accommodating space is formed in the clamping connection rod 101; the two ends of the connecting rod 102 are respectively connected with the clamping connection rods 101 in a welding mode, and the two clamping connection rods 101 are perpendicular to the connecting rod 102, so that a stable frame structure is formed by enclosing the two clamping connection rods 101 and the connecting rod 102, and the stability of the main frame 10 is improved. The lead screw 11 is embedded into the clamping connection rod 101, and two ends of the lead screw 11 are respectively and rotatably connected with the clamping connection rod 101, so that the lead screw 11 is accommodated in the clamping connection rod 101, the lead screw 11 is supported by the clamping connection rod 101, and the lead screw 11 can rotate in the clamping connection rod 101; through setting up two spouts 12 at the upper and lower both ends of clamping pole 101, with first slider 13 suit in the outside of lead screw 11 to make the upper and lower both ends of first slider 13 pass two spouts 12 respectively, in order to realize first slider 13 and lead screw 11 threaded connection, thereby realize when lead screw 11 rotates, lead screw 11 drives first slider 13 and removes in spout 12. The movable rod 14 is provided with a hollow cavity with an opening at one end, and the movable rod 14 is wound on the outer side of the clamping rod 101, so that an accommodating space is formed in the movable rod 14, the clamping rod 101 can be arranged in the movable rod 14, and the clamping rod 101 and the movable rod 14 can relatively move; the first slider 13 is inserted into the opening of the moving rod 14, and the first slider 13 is connected with the moving rod 14, so that the first slider 13 and the moving rod 14 synchronously move, and the overall length of the moving rod 14 and the clamping rod 101 is adjusted.
When the product is specifically used, the screw rod 11 is rotated, so that the screw rod 11 drives the first sliding block 13 and the moving rod 14 to move, and the moving rod 14 extends out of the clamping rod 101 to adjust the overall length of the clamping rod 101 and the moving rod 14; then, the movable rod 14 and the clamping rod 101 which are positioned above are connected through a hoisting device; simultaneously, the moving rod 14 and the clamping rod 101 which are positioned below are embedded into the drain pipe to be hoisted, and the whole length of the moving rod 14 and the clamping rod 101 is larger than the length of the drain pipe at the moment; and then, the main frame 10 is hoisted to hoist and move the drain pipe.
By adopting the structure, the lead screw 11 is embedded into the clamping connection rod 101, the two ends of the lead screw 11 are respectively connected with the clamping connection rod 101, and the first sliding block 13 is sleeved on the outer side of the lead screw 11, so that the clamping connection rod 101 supports the two ends of the lead screw 11, the stability of the lead screw 11 is improved, the situation that one end of the lead screw 11 falls down under the gravity due to no support, the first sliding block 13 cannot slide on the lead screw 11 due to contact of the inner wall of the clamping connection rod 101 is avoided, and the flexibility of movement of the first sliding block 13 is improved. Through being connected movable rod 14 and first slider 13 to make movable rod 14 around establishing in the outside of joint pole 101, with the synchronous removal of realization first slider 13 and movable rod 14, thereby adjust the whole length of movable rod 14 and joint pole 101, in order to adapt to the drain pipe of different specifications, and then promote the suitability of product.
In an embodiment of the present utility model, as shown in fig. 1 to 3, the concrete drain hoisting apparatus further includes: a second slider 15; the second slide block 15 is internally provided with a first internal thread, the second slide block 15 is sleeved on the outer side of the screw rod 11, the second slide block 15 is positioned on one side of the first slide block 13, and the second slide block 15 is connected with the movable rod 14.
Through the second slider 15 suit in the outside of lead screw 11, make second slider 15 be located one side of first slider 13 to be connected second slider 15 with movable rod 14, so as to realize that second slider 15 and movable rod 14 remove in step, thereby realize that lead screw 11 drives second slider 15 and movable rod 14 and remove, and then promote the stability that movable rod 14 removed.
Specifically, the first slider 13 and the second slider 15 are of a split type structure. First, a part of the first sliding block 13 and a part of the second sliding block 15 are embedded into the clamping connection rod 101; then, the other of the first slider 13 and the second slider 15 is passed through the slide groove 12, respectively; the two parts of the first slider 13 and the second slider 15 are then joined together.
In an embodiment of the present utility model, as shown in fig. 1 to 3, the concrete drain hoisting apparatus further includes: a synchronizing wheel 16 and a timing belt 17; the two synchronizing wheels 16 are respectively sleeved on the outer sides of the two lead screws 11, and the synchronizing wheels 16 are positioned on the outer sides of the main frame 10; the timing belt 17 is simultaneously sleeved outside the two timing wheels 16.
By respectively sleeving the two synchronous wheels 16 on the outer sides of the two lead screws 11 and sleeving the synchronous belt 17 on the outer sides of the two synchronous wheels 16 at the same time, when one lead screw 11 rotates, the lead screw 11 drives the other lead screw 11 to rotate through the two synchronous wheels 16 and the synchronous belt 17, so that synchronous rotation of the two lead screws 11 is realized.
In an embodiment of the present utility model, as shown in fig. 1 to 3, the concrete drain hoisting apparatus further includes: a handle 18; the handle 18 is sleeved outside one screw rod 11, and the handle 18 is positioned outside one synchronizing wheel 16.
The handle 18 is sleeved on the outer side of the screw rod 11, and the handle 18 is positioned on the outer side of the synchronous wheel 16, so that the screw rod 11 is driven to rotate by rotating the handle 18, the difficulty of rotating the screw rod 11 is reduced, and the use experience of a product is improved.
In the embodiment of the present utility model, as shown in fig. 1 to 3, the chucking lever 101 includes: a clamping rod body 1011, a receiving groove and a closure 1012; the clamping rod body 1011 is a hollow cavity with an opening at one end; the accommodating groove is internally provided with a second internal thread and is arranged at the opening of the clamping rod body 1011; the outer wall of the plug 1012 is provided with a second external thread, and the plug 1012 is embedded into the accommodating groove; one end of the screw rod 11 is rotationally connected with the clamping rod body 1011, the other end of the screw rod 11 is rotationally connected with the plug 1012, and the second internal thread is matched with the second external thread.
The clamping rod body 1011 is provided with a hollow cavity with an opening at one end, so that an accommodating space is formed in the clamping rod body 1011; through setting up the holding tank in the opening part of joint pole body 1011, imbed shutoff 1012 in the holding tank to make the second external screw thread on the shutoff 1012 outer wall and the interior second internal screw thread looks adaptation of holding tank, in order to realize shutoff 1012 and joint pole body 1011 threaded connection, thereby realize the opening closure with joint pole body 1011. One end of the lead screw 11 is rotationally connected with the clamping rod body 1011, and the other end of the lead screw 11 is rotationally connected with the plug 1012, so that the lead screw 11 is supported by the clamping rod body 1011 and the plug 1012, and the lead screw 11 rotates on the clamping rod body 1011.
By adopting the structure, the plugging 1012 is carried out on the clamping and connecting rod body 1011 by plugging 1012 so that the screw rod 11 is conveniently embedded into the clamping and connecting rod body 1011, and the screw rod 11 is conveniently disassembled.
In an embodiment of the present utility model, as shown in fig. 1 to 3, the concrete drain hoisting apparatus further includes: a first bearing 19 and a second bearing 20; the first bearing 19 is sleeved on the outer side of the screw rod 11, and the first bearing 19 is embedded into the clamping rod body 1011; the second bearing 20 is sleeved on the outer side of the screw rod 11, and the second bearing 20 is embedded in the plug 1012.
The first bearing 19 is sleeved on the outer side of the screw rod 11, and the first bearing 19 is embedded into the clamping rod body 1011, so that the clamping rod body 1011 supports the screw rod 11 through the first bearing 19, and the flexibility of rotation of the screw rod 11 is improved; by sleeving the second bearing 20 on the outer side of the screw 11 and embedding the second bearing 20 into the plug 1012, the plug 1012 supports the screw 11 through the second bearing 20, so that the flexibility of rotation of the screw 11 is improved.
In an embodiment of the present utility model, as shown in fig. 1 to 3, the concrete drain hoisting apparatus further includes: a first suspension ring 21 and a second suspension ring 22; the two first hanging rings 21 are connected with one movable rod 14; the second hanging ring 22 is connected with the clamping connection rod 101.
By connecting the two first hanging rings 21 with one movable rod 14 and connecting the second hanging rings 22 with the clamping connection rod 101, the hanging arrangement is connected with the movable rod 14 and the clamping connection rod 101, and therefore the use experience of products is improved.
In the description of the present utility model, the term "plurality" means two or more, unless explicitly defined otherwise, the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model; the terms "coupled," "mounted," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present utility model, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In the present utility model, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The utility model provides a concrete drain hoisting device which characterized in that, concrete drain hoisting device includes:
the main frame comprises two clamping connection rods and a connecting rod, wherein the clamping connection rods are hollow cavities, two ends of each connecting rod are respectively connected with the two clamping connection rods, and the two clamping connection rods are perpendicular to the connecting rod;
the outer wall of the screw rod is provided with a first external thread, the screw rod is embedded into the clamping connection rod, and two ends of the screw rod are respectively connected with the clamping connection rod in a rotating way;
the two sliding grooves are arranged at the upper end and the lower end of the clamping connection rod;
the first sliding block is internally provided with a first internal thread, is sleeved on the outer side of the screw rod, and the upper end and the lower end of the first sliding block respectively penetrate through the two sliding grooves;
the movable rod is a hollow cavity with an opening at one end, the movable rod is wound on the outer side of the clamping rod, the first sliding block is embedded into the opening of the movable rod, and the first sliding block is connected with the movable rod;
wherein, first external screw thread with first internal screw thread looks adaptation.
2. A concrete drain lifting device as defined in claim 1, further comprising:
the second slider, be provided with first internal thread in the second slider, the second slider suit is in the outside of lead screw, the second slider is located one side of first slider, just the second slider with the carriage release lever is connected.
3. A concrete drain lifting device according to claim 2, wherein the concrete drain lifting device further comprises:
the two synchronous wheels are sleeved on the outer sides of the two lead screws respectively, and the synchronous wheels are positioned on the outer sides of the main frames;
and the synchronous belts are sleeved on the outer sides of the two synchronous wheels at the same time.
4. A concrete drain lifting device as recited in claim 3, further comprising:
the handle is sleeved on the outer side of one screw rod, and the handle is positioned on the outer side of one synchronous wheel.
5. A concrete drain lifting device as defined in claim 1, wherein said clamping bar comprises:
the clamping rod body is a hollow cavity with an opening at one end;
the accommodating groove is internally provided with a second internal thread and is arranged at the opening of the clamping rod body;
the outer wall of the plug is provided with a second external thread, and the plug is embedded into the accommodating groove;
one end of the screw rod is rotationally connected with the clamping rod body, the other end of the screw rod is rotationally connected with the plugging, and the second internal thread is matched with the second external thread.
6. The concrete drain lifting device of claim 5, further comprising:
the first bearing is sleeved on the outer side of the screw rod and embedded into the clamping rod body;
the second bearing is sleeved on the outer side of the screw rod, and the second bearing is embedded in the plug.
7. The concrete drain lifting device of claim 6, further comprising:
the first lifting rings are connected with one moving rod;
the second lifting ring is connected with the clamping connection rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320531315.3U CN219636716U (en) | 2023-03-18 | 2023-03-18 | Concrete drain pipe hoist device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320531315.3U CN219636716U (en) | 2023-03-18 | 2023-03-18 | Concrete drain pipe hoist device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219636716U true CN219636716U (en) | 2023-09-05 |
Family
ID=87810338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320531315.3U Active CN219636716U (en) | 2023-03-18 | 2023-03-18 | Concrete drain pipe hoist device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219636716U (en) |
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2023
- 2023-03-18 CN CN202320531315.3U patent/CN219636716U/en active Active
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