CN221048691U - Spraying maintenance device for inner surface of prefabricated box girder - Google Patents
Spraying maintenance device for inner surface of prefabricated box girder Download PDFInfo
- Publication number
- CN221048691U CN221048691U CN202322423250.3U CN202322423250U CN221048691U CN 221048691 U CN221048691 U CN 221048691U CN 202322423250 U CN202322423250 U CN 202322423250U CN 221048691 U CN221048691 U CN 221048691U
- Authority
- CN
- China
- Prior art keywords
- water supply
- box girder
- spray
- supply pipe
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012423 maintenance Methods 0.000 title claims abstract description 23
- 238000005507 spraying Methods 0.000 title abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 239000007921 spray Substances 0.000 claims abstract description 67
- 210000001503 joint Anatomy 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
The utility model provides a spraying maintenance device for the inner surface of a prefabricated box girder, which belongs to the technical field of spraying maintenance devices and comprises a first supporting unit and a second supporting unit. The first support unit and the second support unit each include a bracket. The delivery pipe can dismantle with the support and be connected and the delivery pipe can rotate, and the one end of delivery pipe is sealed, and the other end is used for communicating with water supply installation. The spray assembly comprises a spray pipe and a spray header, one end of the spray pipe is fixedly connected with the water supply pipe and is communicated with the water supply pipe, and the other end of the spray pipe is connected with the spray header. According to the spraying maintenance device for the inner surface of the prefabricated box girder, provided by the utility model, the plurality of spraying heads positioned in the cavity can be used for spraying maintenance on the top surface, the side surface and the bottom surface of the cavity through the rotation of the water supply pipe, so that the problem that an operator is difficult to enter the cavity of the prefabricated box girder to spray maintenance on the inner surface of the prefabricated box girder is avoided.
Description
Technical Field
The utility model belongs to the technical field of spray maintenance devices, and particularly relates to a spray maintenance device for the inner surface of a prefabricated box girder.
Background
The prefabricated box girder is provided with a cavity, and the cavity penetrates through two ends of the prefabricated box girder along the length direction of the prefabricated box girder. After the precast box girder is poured, the inner and outer surfaces of the precast box girder are required to be sprayed and maintained. The inner surface of the precast box girder is sprayed and maintained, namely the top surface, the side surface and the bottom surface of the cavity, and because the space in the cavity is limited, operators hardly enter the cavity of the precast box girder to spray and maintain the inner surface of the precast box girder.
Disclosure of utility model
The utility model aims to provide a spraying maintenance device for the inner surface of a prefabricated box girder, which aims to solve the problem that operators hardly enter a cavity of the prefabricated box girder to spray and maintain the inner surface of the prefabricated box girder.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a spray maintenance device for the inner surface of a prefabricated box girder is provided, which comprises a first supporting unit and a second supporting unit. The first supporting unit and the second supporting unit are respectively located at two sides of the length direction of the prefabricated box girder, and each of the first supporting unit and the second supporting unit comprises a bracket. The delivery pipe is followed the length direction setting and the middle part of prefabricated case roof beam wear to locate in the cavity of prefabricated case roof beam, the delivery pipe with the support can dismantle the connection just the delivery pipe can rotate, the one end of delivery pipe is sealed, and the other end is used for communicating with water supply installation. The spray assemblies are located in the cavities, each spray assembly comprises a spray pipe and a spray header, one end of each spray pipe is fixedly connected with the water supply pipe and communicated with the water supply pipe, and the other end of each spray pipe is connected with the spray header.
In one possible implementation manner, the bracket includes a fixing seat, and the first supporting unit and the second supporting unit each further include a connecting pipe, two limiting rings and a limiting strip. The connecting pipe sliding sleeve is arranged on the water supply pipe, the connecting pipe can penetrate through the fixing seat in a rotating mode, a sliding groove is formed in the inner surface of the connecting pipe, and the sliding groove penetrates through two ends of the connecting pipe along the axial direction of the connecting pipe. The two limiting rings are sleeved and fixed on the connecting pipe, are positioned on the two sides of the fixing base along the length direction of the connecting pipe and are abutted to the fixing base. The limiting strip is arranged in the sliding groove in a sliding way and fixedly connected with the water supply pipe.
In one possible implementation, the support further has a bottom plate horizontally disposed, and the fixing base is fixedly disposed on the bottom plate.
In one possible implementation, the first support unit further comprises a drive motor and two meshed gears. The two meshed gears are respectively sleeved and fixed on the connecting pipe and the output shaft of the driving motor.
In one possible implementation, the drive motor is fixed to the base plate.
In one possible implementation, the first support unit and the second support unit each further comprise a positioning ring. The positioning ring is sleeved and fixed on the water supply pipe, and is positioned on one side of the connecting pipe facing the prefabricated box girder and is abutted to the connecting pipe.
In one possible implementation, the first support unit and the second support unit each further comprise a stop nut. The limiting nut is sleeved on the water supply pipe, and is positioned on one side, away from the locating ring, of the connecting pipe and is abutted to the connecting pipe. Wherein, the delivery pipe be equipped with stop nut threaded connection's external screw thread.
In one possible implementation manner, the opening end of the water supply pipe and the second supporting unit are located on the same side of the prefabricated box girder, a concave limiting portion which is circular ring-shaped and is concave inwards is arranged on the outer side surface of the water supply pipe, the concave limiting portion is located on one side, facing the opening end of the water supply pipe, of the limit nut in the second supporting unit, the concave limiting portion penetrates through the water supply pipe towards the opening end direction of the water supply pipe, and the second supporting unit further comprises a connecting seat and a butt joint pipe. The connecting seat is fixedly arranged on the bottom plate. The butt joint pipe is sleeved on the concave limiting part in a sliding way and is fixedly connected with the connecting seat.
In one possible implementation, the second support unit further comprises a sealing ring. The sealing ring is sleeved on the concave limiting part and positioned between the concave limiting part and the butt joint pipe, and the sealing ring is fixedly connected with the butt joint pipe.
In one possible implementation, a plurality of the spray assemblies are spaced apart along the length of the water supply pipe.
In the embodiment of the application, the two brackets support the water supply pipe to rotate, water provided by the water supply device enters the spray pipes through the water supply pipe and then is sprayed out through the spray heads, and the spray heads positioned in the cavity can spray and maintain the top surface, the side surface and the bottom surface of the cavity through the rotation of the water supply pipe, so that the problem that operators hardly enter the cavity of the prefabricated box girder to spray and maintain the inner surface of the prefabricated box girder is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a spray curing device for the inner surface of a prefabricated box girder according to an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of the portion A in FIG. 1;
FIG. 3 is an enlarged schematic view of part B in FIG. 1;
FIG. 4 is an enlarged schematic view of the part C in FIG. 1;
FIG. 5 is a schematic cross-sectional view of a first support unit in a spray curing apparatus for precast box girder inner surfaces according to an embodiment of the present utility model after being connected to a water supply pipe;
FIG. 6 is an enlarged schematic view of the portion D in FIG. 5;
fig. 7 is a schematic structural diagram of a connection pipe in a spray curing device for an inner surface of a prefabricated box girder according to an embodiment of the present utility model;
FIG. 8 is a schematic cross-sectional view of a connection pipe, a sealing ring and a water supply pipe in a spray curing device for prefabricating the inner surface of a box girder according to an embodiment of the present utility model;
Fig. 9 is a schematic structural diagram of a spray curing device for an inner surface of a prefabricated box girder in use according to an embodiment of the present utility model.
In the figure: 1. a bracket; 11. a fixing seat; 12. a bottom plate; 2. a water supply pipe; 21. a concave limit part; 3. a spray assembly; 31. a shower pipe; 32. a spray header; 4. a connecting pipe; 41. a chute; 5. a limiting ring; 6. a limit bar; 7. a driving motor; 8. a gear; 9. a positioning ring; 10. a limit nut; 110. a connecting seat; 120. a butt joint pipe; 130. a seal ring; 140. prefabricating box girders; 1401. a cavity.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It should be further noted that the drawings and embodiments of the present utility model mainly describe the concept of the present utility model, and on the basis of the concept, some specific forms and arrangements of connection relations, position relations, power units, power supply systems, hydraulic systems, control systems, etc. may not be completely described, but those skilled in the art may implement the specific forms and arrangements described above in a well-known manner on the premise of understanding the concept of the present utility model.
When an element is referred to as being "fixed" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the same sense as the orientation or positional relationship shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" means two or more, and the meaning of "a number" means one or more, unless specifically defined otherwise.
Referring to fig. 1, 3, 5 and 9, the spray maintenance device for the inner surface of the prefabricated box girder provided by the utility model will now be described. The spraying maintenance device for the inner surface of the prefabricated box girder comprises a first supporting unit and a second supporting unit. The first support unit and the second support unit are respectively located at both sides of the prefabricated box girder 140 in the length direction, and each of the first support unit and the second support unit includes a bracket 1. The water supply pipe 2 is arranged along the length direction of the prefabricated box girder 140, the middle part of the water supply pipe 2 is arranged in the cavity 1401 of the prefabricated box girder 140 in a penetrating mode, the water supply pipe 2 is detachably connected with the support 1, the water supply pipe 2 can rotate, one end of the water supply pipe 2 is closed, and the other end of the water supply pipe 2 is communicated with a water supply device. A plurality of spray assemblies 3 are positioned in the cavity 1401, the spray assemblies 3 comprise spray pipes 31 and spray heads 32, one ends of the spray pipes 31 are fixedly connected with the water supply pipe 2 and are communicated with the water supply pipe 2, and the other ends of the spray pipes are connected with the spray heads 32.
Compared with the prior art, the spray curing device for the inner surface of the prefabricated box girder provided by the utility model has the advantages that the two brackets 1 support the water supply pipe 2 to rotate, water provided by the water supply device enters the spray pipes 31 through the water supply pipe 2 and is sprayed out through the spray heads 32, and the spray heads 32 positioned in the cavity 1401 can spray and cure the top surface, the side surface and the bottom surface of the cavity 1401 through the rotation of the water supply pipe 2, so that the problem that operators hardly enter the cavity 1401 of the prefabricated box girder 140 to spray and cure the inner surface of the prefabricated box girder 140 is avoided.
In the present embodiment, when the spray curing of the inner surface of the prefabricated box girder 140 is completed, the water supply pipe 2 is disconnected from the two brackets 1, and then the water supply pipe 2 is withdrawn from the cavity 1401.
In some embodiments, referring to fig. 1, 2, 4, 5, 6 and 7, the bracket 1 includes a fixing seat 11, and the first support unit and the second support unit each further include a connection pipe 4, two stop collars 5 and a stop bar 6. The connecting pipe 4 is slidably sleeved on the water supply pipe 2, the connecting pipe 4 rotatably penetrates through the fixing seat 11, a sliding groove 41 is formed in the inner surface of the connecting pipe 4, and the sliding groove 41 penetrates through two ends of the connecting pipe 4 along the axial direction of the connecting pipe 4. The two limiting rings 5 are sleeved and fixed on the connecting pipe 4, and the two limiting rings 5 are positioned on two sides of the fixing seat 11 along the length direction of the connecting pipe 4 and are abutted with the fixing seat 11. The limit bar 6 is slidably arranged in the chute 41 and fixedly connected with the water supply pipe 2. The two limiting rings 5 can limit the connecting pipe 4 to be separated from the fixed seat 11, and the water supply pipe 2 is connected with the fixed seat 11 through the connecting pipe 4, namely, the connection between the water supply pipe 2 and the bracket 1 is realized. When the connection pipe 4 is slid away from the water supply pipe 2 and the limit bar 6 is slid away from the slide groove 41, the water supply pipe 2 is disconnected from the bracket 1. The connecting pipe 4 can drive the water supply pipe 2 to synchronously rotate through the limiting strip 6, so that the water supply pipe 2 can rotate.
In some embodiments, referring to fig. 5, the bracket 1 further has a bottom plate 12 disposed horizontally, and the fixing base 11 is fixed on the bottom plate 12. The fixed seat 11 is placed on the ground through the bottom plate 12.
In some embodiments, see fig. 1 and 4, the first support unit further comprises a drive motor 7 and two meshed gears 8. The two meshed gears 8 are respectively sleeved and fixed on the connecting pipe 4 and the output shaft of the driving motor 7. The output shaft of the driving motor 7 drives the connecting pipe 4 to rotate through two meshed gears 8, so that the connecting pipe 4 is prevented from being manually driven to rotate.
In some embodiments, referring to fig. 5, the driving motor 7 is fixed on the bottom plate 12, so that the bracket 1 and the driving motor 7 can move synchronously, thereby avoiding the detachment of the two meshed gears 8.
In some embodiments, referring to fig. 2 and 4, the first support unit and the second support unit each further comprise a positioning ring 9. The positioning ring 9 is sleeved and fixed on the water supply pipe 2, and the positioning ring 9 is positioned on one side of the connecting pipe 4 facing the prefabricated box girder 140 and is abutted with the connecting pipe 4. The two brackets 1 can be prevented from moving closer by limiting the two positioning rings 9 by the two connecting pipes 4, and the water supply pipe 2 can be limited to slide.
In some embodiments, referring to fig. 2 and 4, the first support unit and the second support unit each further comprise a stop nut 10. The limit nut 10 is sleeved on the water supply pipe 2, and the limit nut 10 is positioned on one side of the connecting pipe 4 away from the positioning ring 9 and is abutted with the connecting pipe 4. Wherein the water supply pipe 2 is provided with external threads in threaded connection with the limit nut 10. The limit nut 10 limits the connecting pipe 4 to prevent the connecting pipe 4 from sliding away from the water supply pipe 2 in a direction away from the positioning ring 9. When the limit nut 10 is separated from the water supply pipe 2, the connecting pipe 4 can slide away from the water supply pipe 2 in a direction away from the positioning ring 9. In this embodiment, the external thread may be provided with two sections, and the two sections of external threads are respectively located at the two limit nuts 10.
In some embodiments, referring to fig. 2 and 8, the open end of the water supply pipe 2 is located at the same side of the prefabricated box girder 140 as the second supporting unit, the outer side surface of the water supply pipe 2 is provided with a concave limiting part 21 which is circular ring-shaped and is concave inwards, the concave limiting part 21 is located at one side of the limit nut 10 in the second supporting unit, which faces the open end of the water supply pipe 2, the concave limiting part 21 penetrates the water supply pipe 2 towards the open end of the water supply pipe 2, and the second supporting unit further comprises a connecting seat 110 and a butt joint pipe 120. The connecting base 110 is fixedly arranged on the bottom plate 12. The butt joint pipe 120 is slidably sleeved on the concave limiting portion 21 and is fixedly connected with the connecting seat 110. The water supply pipe 2 is connected with the water supply device through the butt joint pipe 120, and the water supply pipe 2 is difficult to directly communicate with the water supply device because of the rotation, and the butt joint pipe 120 which is fixedly arranged is convenient to communicate with the water supply device. In this embodiment, the provision of the recess portion 21 facilitates the movement of the limit nut 10 in the second support unit out of the water supply pipe 2.
In some embodiments, referring to fig. 2 and 8, the second support unit further includes a sealing ring 130. The sealing ring 130 is sleeved on the concave limiting part 21 and is positioned between the concave limiting part 21 and the butt joint pipe 120, and the sealing ring 130 is fixedly connected with the butt joint pipe 120. The sealing between the recess 21 and the docking tube 120 is ensured by the sealing ring 130.
In some embodiments, referring to fig. 1 and 3, a plurality of spray assemblies 3 are spaced apart along the length of the water supply pipe 2. The inner surface of the prefabricated box girder 140 is subjected to segmented spray maintenance through a plurality of spray assemblies 3.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. A spray curing means for prefabricating case roof beam internal surface, its characterized in that includes:
The first supporting unit and the second supporting unit are respectively positioned at two sides of the length direction of the prefabricated box girder, and each of the first supporting unit and the second supporting unit comprises a bracket;
The water supply pipe is arranged along the length direction of the prefabricated box girder, the middle part of the water supply pipe penetrates through the cavity of the prefabricated box girder, the water supply pipe is detachably connected with the bracket and can rotate, one end of the water supply pipe is closed, and the other end of the water supply pipe is communicated with the water supply device; and
The spray assemblies are located in the cavities and comprise spray pipes and spray heads, one ends of the spray pipes are fixedly connected with the water supply pipes and are communicated with the water supply pipes, and the other ends of the spray pipes are connected with the spray heads.
2. The spray maintenance device for prefabricating the inner surface of a box girder according to claim 1, wherein the bracket comprises a fixing seat, and the first supporting unit and the second supporting unit each further comprise:
The connecting pipe is sleeved on the water supply pipe in a sliding manner, the connecting pipe can penetrate through the fixing seat in a rotating manner, a sliding groove is formed in the inner surface of the connecting pipe, and the sliding groove penetrates through two ends of the connecting pipe along the axial direction of the connecting pipe;
The two limiting rings are respectively sleeved and fixed on the connecting pipe, are positioned on two sides of the fixing base along the length direction of the connecting pipe and are respectively abutted with the fixing base;
and the limiting strip is arranged in the chute in a sliding way and is fixedly connected with the water supply pipe.
3. The spray maintenance device for the inner surface of the prefabricated box girder according to claim 2, wherein the bracket is further provided with a bottom plate which is horizontally arranged, and the fixing seat is fixedly arranged on the bottom plate.
4. A spray maintenance device for prefabricated box girder inner surfaces according to claim 3, wherein the first support unit further comprises:
A driving motor;
The two meshed gears are respectively sleeved and fixed on the connecting pipe and the output shaft of the driving motor.
5. The spray maintenance device for the inner surface of the prefabricated box girder according to claim 4, wherein the driving motor is fixedly arranged on the bottom plate.
6. A spray maintenance device for prefabricated box girder inner surfaces according to claim 3, wherein the first support unit and the second support unit each further comprise:
The positioning ring is sleeved and fixed on the water supply pipe, and is positioned on one side of the connecting pipe facing the prefabricated box girder and is abutted to the connecting pipe.
7. The spray maintenance device for an interior surface of a precast box girder of claim 6, wherein the first support unit and the second support unit each further comprise:
the limiting nut is sleeved on the water supply pipe, is positioned on one side of the connecting pipe away from the positioning ring and is abutted with the connecting pipe;
Wherein, the delivery pipe be equipped with stop nut threaded connection's external screw thread.
8. The spray maintenance device for an inner surface of a prefabricated box girder according to claim 7, wherein the open end of the water supply pipe and the second supporting unit are located at the same side of the prefabricated box girder, a concave limiting part which is circular ring-shaped and is concave inwards is arranged on the outer side surface of the water supply pipe, the concave limiting part is located at one side of the limit nut in the second supporting unit, which faces to the open end of the water supply pipe, the concave limiting part penetrates through the water supply pipe towards the open end of the water supply pipe, and the second supporting unit further comprises:
The connecting seat is fixedly arranged on the bottom plate;
The butt joint pipe is sleeved on the concave limiting part in a sliding manner and is fixedly connected with the connecting seat.
9. The spray maintenance device for the inner surface of a precast box girder of claim 8, wherein the second supporting unit further comprises:
the sealing ring is sleeved on the concave limiting part and positioned between the concave limiting part and the butt joint pipe, and is fixedly connected with the butt joint pipe.
10. The spray maintenance device for the inner surface of a precast box girder of claim 1, wherein a plurality of the spray assemblies are spaced apart along the length direction of the water supply pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322423250.3U CN221048691U (en) | 2023-09-06 | 2023-09-06 | Spraying maintenance device for inner surface of prefabricated box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322423250.3U CN221048691U (en) | 2023-09-06 | 2023-09-06 | Spraying maintenance device for inner surface of prefabricated box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221048691U true CN221048691U (en) | 2024-05-31 |
Family
ID=91222808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322423250.3U Active CN221048691U (en) | 2023-09-06 | 2023-09-06 | Spraying maintenance device for inner surface of prefabricated box girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221048691U (en) |
-
2023
- 2023-09-06 CN CN202322423250.3U patent/CN221048691U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112123542B (en) | A curing means for production of reinforced concrete drain pipe | |
| CN113828456A (en) | Low pressure casting new forms of energy automobile wheel hub mould spraying device | |
| CN221048691U (en) | Spraying maintenance device for inner surface of prefabricated box girder | |
| CN216031555U (en) | Automatic spraying and maintaining device for highway precast beam field | |
| CN115870687A (en) | Horizontal butt joint device of steel pipe | |
| CN111761592B (en) | Paint brushing mechanism and method carried on tail end of mechanical arm | |
| CN211756131U (en) | Outer bottom surface coating equipment of bridge and tunnel steel immersed tube | |
| CN210254804U (en) | Vertical rotary support | |
| CN219073272U (en) | Hydraulic-driven rotary nozzle | |
| CN113789707A (en) | Traffic engineering road joint cutting device | |
| CN109163461B (en) | Self-cleaning solar water heater | |
| CN220638361U (en) | Green prefabricated concrete component curing means for assembled building | |
| CN220030634U (en) | Prefabricated member maintenance equipment for assembled building | |
| CN215318029U (en) | Novel fixing clamp for processing PP-R pipe | |
| CN220117035U (en) | Pier column spray set | |
| CN219152018U (en) | Welding equipment for prefabricated processing of assembled fire-fighting pipeline | |
| CN219060195U (en) | Inner wall cleaning equipment for municipal water delivery pipe | |
| CN216078345U (en) | Electric combined air valve for subway | |
| CN219034106U (en) | Building construction concrete maintenance device | |
| CN220600681U (en) | Indoor overhead water supply and drainage pipeline positioning bracket | |
| CN218926528U (en) | Plastic-coated composite steel pipe forming device for production of water supply steel pipes | |
| CN213296458U (en) | Excavator bucket easy to assemble | |
| CN216459585U (en) | Anticorrosive processingequipment of high temperature pump | |
| CN217223337U (en) | Drainage pipe connecting elbow extrusion forming device | |
| CN216465723U (en) | A pouring device for production of al-alloy door & window |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |