CN115231229A - Cement concrete pressure pipe loading and unloading mechanism - Google Patents
Cement concrete pressure pipe loading and unloading mechanism Download PDFInfo
- Publication number
- CN115231229A CN115231229A CN202211162447.XA CN202211162447A CN115231229A CN 115231229 A CN115231229 A CN 115231229A CN 202211162447 A CN202211162447 A CN 202211162447A CN 115231229 A CN115231229 A CN 115231229A
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- conveying
- plate
- cement concrete
- concrete pressure
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G35/00—Mechanical conveyors not otherwise provided for
- B65G35/06—Mechanical conveyors not otherwise provided for comprising a load-carrier moving along a path, e.g. a closed path, and adapted to be engaged by any one of a series of traction elements spaced along the path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
- B65G2207/42—Soft elements to prevent damage to articles, e.g. bristles, foam
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a cement concrete pressure pipe loading and unloading mechanism which comprises a protection unit, a transportation unit and an overturning limiting unit, wherein the protection unit comprises an outer shell, a containing cavity and a damping protection plate, the containing cavity and the damping protection plate are arranged in the outer shell, the damping protection plate is arranged in the containing cavity, the transportation unit comprises a conveying track, a placing block and a conveying sliding plate, the conveying cavity is internally provided with the conveying track, the inner wall of the outer shell is connected with the placing block, the conveying sliding plate is arranged on the conveying track, the overturning limiting unit comprises a motor, a screw rod, a fixing block, a supporting rod, a limiting plate and a conveying belt, the overturning limiting unit is arranged in the placing block, the conveying belt is connected with the motor and the screw rod, the screw rod is rotatably connected with the fixing block, one end of the supporting rod is connected with the conveying track, and the other end of the supporting rod is rotatably connected with the limiting plate. The invention is convenient for the transportation of the cement pipe and plays a good role in shock absorption and protection in the transportation process.
Description
Technical Field
The invention relates to the field of pipeline protection, in particular to a cement concrete pressure pipe assembling and disassembling mechanism.
Background
The cement pipe is also called cement pressure pipe or reinforced concrete pipe, it can be used as sewer pipe in urban building foundation, it can discharge sewage and flood control and drain water, and can be used as water supply pipe and farmland pumping well in some special factories and mines. Cement pipes are generally divided into: the cement pipe is made of cement and reinforcing steel bars and is generally manufactured by adopting a centrifugal pipe manufacturing process or a suspension roller pipe manufacturing process.
At present cement pipe there is conveyer unstability in the in-process of transporting the regional that needs concentrate and place, cement pipe leads to the damaged condition because collision or vibrations each other, and cement pipe is because the problem of material is the loading of also being convenient for, in the transportation, if not reinforcing and shock attenuation cement pipe, just make the cement pipe damage owing to jolting the production very easily at the in-process of transportation, cause economic loss, the incident takes place even, consequently need a device of being convenient for transport and can protecting cement pipe to avoid such problem.
Disclosure of Invention
The invention aims to solve the technical problems that a cement pipe is inconvenient to load and is damaged in the transportation process.
In order to solve the technical problems, the invention provides the following technical scheme: including protection unit, transportation unit and the spacing unit of upset, the protection unit includes the shell body, sets up in the inside chamber and the shock attenuation guard plate that hold of shell body, it is provided with the shock attenuation guard plate to hold the intracavity, the transportation unit includes the delivery track, places the piece and carries the slide, it is provided with the delivery track to hold the intracavity, the piece is placed to the wall connection in the shell body, be provided with the transport slide on the delivery track, the spacing unit of upset includes motor, screw rod, fixed block, bracing piece, limiting plate and conveyer belt, the spacing unit of upset sets up inside placing the piece, motor and screw rod are connected to the conveyer belt, the screw rod rotates and connects the fixed block, the delivery track is connected to bracing piece one end, and the limiting plate is connected in the rotation of the bracing piece other end.
As a preferable scheme of the cement concrete pressure pipe loading and unloading mechanism of the invention, wherein: the utility model discloses a conveying sliding plate, including shell body, shell body top end face, transport slide plate, catch bar sliding connection limiting groove inner wall, shell body top end face is provided with erects the groove, shell body one side is provided with spacing groove and observation hole, the catch bar is connected to the transport slide plate, catch bar sliding connection limiting groove inner wall.
As a preferable scheme of the cement concrete pressure pipe loading and unloading mechanism of the invention, wherein: damping spring is connected to shock attenuation guard plate bottom terminal surface, be provided with the gasbag on the shock attenuation guard plate, the side of shock attenuation guard plate is provided with aerifys the arc limit.
As a preferable scheme of the cement concrete pressure pipe loading and unloading mechanism of the invention, wherein: the top end face and the bottom end face of the accommodating cavity are connected with a conveying rail, one end of the conveying rail is connected with a clamping rail, and one side of the conveying rail is connected with a placing rail.
As a preferable scheme of the cement concrete pressure pipe loading and unloading mechanism of the invention, wherein: the placing block is provided with an arc-shaped groove and a movable arc plate, the arc-shaped groove is formed by sinking the top end face of the placing block, and the movable arc plate is connected with the inner wall of the arc-shaped groove in a rotating mode.
As a preferable scheme of the cement concrete pressure pipe loading and unloading mechanism of the invention, wherein: the placing block is characterized in that conveying sliding plates are arranged on two sides of the placing block, universal wheels are arranged in the conveying tracks and connected with the top and the bottom of the conveying sliding plates, and a connecting frame ring is arranged on the end face of each conveying sliding plate.
As a preferable scheme of the cement concrete pressure pipe loading and unloading mechanism of the invention, wherein: the motor is provided with a first gear, the screw rod is connected with a second gear, the screw rods are symmetrically arranged on two sides of the motor, and the inner side of the conveyor belt is connected with the first gear and the second gear.
As a preferable scheme of the cement concrete pressure pipe loading and unloading mechanism of the invention, wherein: the utility model discloses a conveying track, including bracing piece, limiting plate, rotation groove, conveying track outer wall, bracing piece one end is provided with first dwang, and the bracing piece other end is provided with the rotation groove, first dwang rotates and connects the conveying track outer wall, limiting plate connection second dwang, the rotation groove rotates and connects the second dwang.
As a preferable scheme of the cement concrete pressure pipe loading and unloading mechanism of the invention, wherein: the conveying tracks are symmetrically arranged on two sides of the damping protection plate by taking the central line of the damping protection plate as an axis.
The invention has the beneficial effects that: this device is a cement pipe transportation protector, protects the cement pipe through the protection unit, realizes the loading and unloading of cement pipe through the transportation unit, and the spacing unit of upset can ensure the interim firm in the cement pipe transportation process, and the loading and unloading of cement pipe is realized through rolling mode to this device, labour saving and time saving, and the gasbag that sets up can realize the automatic protection of cement pipe, simple structure, and the protecting effect is good, still is convenient for repetitious usage.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention.
Fig. 2 is a schematic view of the inside of the outer case of the present invention.
Fig. 3 is a schematic view of the flip limiting unit of the present invention.
Fig. 4 is a schematic view of the shock absorption protection plate of the present invention.
FIG. 5 is a schematic view of the caster of the present invention.
Reference numerals: the protection unit 100, the outer shell 101, the vertical groove 101a, the limiting groove 101b, the observation hole 101c, the shock absorption protection plate 102, the shock absorption spring 102a, the air bag 102b, the inflatable arc edge 102c, the transportation unit 200, the conveying rail 201, the clamping rail 201a, the placing rail 201b, the placing block 202, the arc-shaped groove 202a, the movable arc plate 202b, the conveying sliding plate 203, the push rod 203a, the universal wheel 203b, the frame ring 203c, the overturning limiting unit 300, the motor 301, the first gear 301a, the screw 302, the second gear 302a, the fixing block 303, the supporting rod 304, the first rotating rod 304a, the rotating groove 304b, the limiting plate 305, the second rotating rod 305a and the accommodating cavity 100a.
Detailed Description
Example 1
Referring to fig. 1 to 3, the embodiment provides a cement concrete pressure pipe assembling and disassembling mechanism, which includes a protection unit 100, a transportation unit 200, and an overturning limiting unit 300, wherein the protection unit 100 includes an outer shell 101, an accommodating cavity 100a and a damping protection plate 102, which are arranged inside the outer shell 101, and the damping protection plate 102 is arranged inside the accommodating cavity 100a. The protection unit 100 mainly functions to protect a cement pipe, and the outer shell 101 may be placed in a hopper of a transport vehicle in advance, or wheels may be directly mounted at the bottom of the outer shell 101. When the outer shell 101 is placed on a transport vehicle, the outer shell 101 can be used as a hopper of the transport vehicle, a cement pipe is moved to the placing block 202 through a crane or a forklift, then the cement pipe is moved to the position above the damping protection plate 102 through the conveying track 201, the cement pipe is placed down, and the cement pipe is wrapped through the damping protection plate 102, so that the cement pipe can be effectively prevented from being damaged due to jolt and shake in the transport process; and when wheels are provided at the bottom of the outer case 101, it can be used for short-distance transportation in a large field.
The transportation unit 200 comprises a transportation rail 201, a placing block 202 and a transportation sliding plate 203, the transportation rail 201 is arranged in the accommodating cavity 100a, the placing block 202 is connected to the inner wall of the outer shell 101, and the transportation sliding plate 203 is arranged on the transportation rail 201. The cement pipe is moved to the placing block 202 by a forklift, then the conveying sliding plate 203 is pushed, the conveying sliding plate 203 clamps the cement pipe, the cement pipe is moved to the upper side of the damping protection plate 102 according to the track of the conveying track 201, and the conveying sliding plate 203 is pulled to the two sides, so that the cement pipe falls onto the damping protection plate 102.
The overturning limiting unit 300 comprises a motor 301, a screw 302, a fixing block 303, a supporting rod 304, a limiting plate 305 and a conveyor belt 306, the overturning limiting unit 300 is arranged inside the placing block 202, the conveyor belt 306 is connected with the motor 301 and the screw 302, the screw 302 is rotatably connected with the fixing block 303, one end of the supporting rod 304 is connected with the conveying track 201, and the other end of the supporting rod 304 is rotatably connected with the limiting plate 305. During the initial state of this device, limiting plate 305 is vertical state, carry slide 203 to be located centre gripping track 201a, limiting plate 305 at this moment plays the supporting role to placing piece 202, when cement pipe is placed on placing piece 202, driving motor 301, make screw 302 rotate under the effect of conveyer belt 306, then make limiting plate 305 slowly adjust to the horizontality from vertical state, activity arc board 202b this moment will remove spacingly, then can make the cement pipe remove away from placing piece 202.
Example 2
Referring to fig. 1, 2 and 4, the embodiment is based on the previous embodiment, a vertical groove 101a is formed in the top end surface of an outer shell 101, a limiting groove 101b and an observation hole 101c are formed in one side of the outer shell 101, a conveying sliding plate 203 is connected with a push rod 203a, the push rod 203a is slidably connected with the inner wall of the limiting groove 101b, the conveying sliding plate 203 is also arranged on two sides of the outer shell 101, when a cement pipe is clamped by the conveying sliding plate 203 and needs to move, the push rod 203a is pushed to move the cement pipe, the push rod 203a slides in the limiting groove 101b, the vertical groove 101a is a square groove, the width of the vertical groove is longer than the length of the cement pipe, when the cement pipe needs to be unloaded, the cement pipe can be lifted out of the square groove by using a crane, the limiting groove 101b serves to further limit the conveying sliding plate 203 and prevent the conveying sliding plate from being turned or inclined, the observation hole 101c facilitates real-time observation of the cement pipe placed inside the outer shell 101, and can be treated as soon as equipment fails.
The bottom surface becomes the cambered surface under the shock attenuation protection plate 102, shock attenuation spring 102a is connected to shock attenuation protection plate 102 bottom terminal surface, be provided with gasbag 102b on the shock attenuation protection plate 102, the side of shock attenuation protection plate 102 is provided with aerifys arc limit 102c, when the cement pipe falls on shock attenuation protection plate 102, shock attenuation spring 102a can be cushioned to the cement pipe, shock attenuation spring 102a is provided with a plurality ofly, and arrange on the cambered surface bottom surface of shock attenuation protection plate 102, and gasbag 102b can further play the cushioning effect to the cement pipe, when the cement pipe extrudees gasbag 102b, gas in gasbag 102b can be extruded to aerifing arc limit 102c in, make aerify arc limit 102c expand fast, and aerify arc limit 102c and set to be unanimous with the peripheral shape of cement pipe, except that can wrap up the cement pipe fast, can also keep apart the cement pipe that the parcel and the cement pipe that both sides were placed, prevent that the cement pipe from colliding with each other and producing the damage, and after two liang cement pipes moved out shock attenuation protection plate 102, gasbag 102b can resume former state, be convenient for reuse many times.
The top end face and the bottom end face of the accommodating cavity 100a are connected with the conveying rail 201, one end of the conveying rail 201 is connected with the clamping rail 201a, the conveying rail 201 is connected with the outer side of the conveying rail 201 to place the rail 201b, arc-shaped curves are arranged at the connecting positions of the conveying rail 201 and the clamping rail 201a and the connecting positions of the placing rail 201b, turning of universal wheels is facilitated, the clamping rail 201a is arranged on the end face of one end of the conveying rail 201, the placing rail 201b is arranged on the outer side face of the conveying rail 201 in a linear array mode, the clamping rail 201a is used for expanding the distance between the two conveying sliding plates 203, a cement pipe is conveniently placed between the two conveying sliding plates 203, the cement pipe is conveniently clamped, the placing rails 201b and the damping protection plates 102 correspond to one another, when the cement pipe moves to the damping protection plates 102 directly above, the conveying sliding plates 203 just move to the placing rails 201b, and the cement pipe can fall into the damping protection plates 102 by pulling the conveying sliding plates 203 on the two sides outwards.
Placing and being provided with arc groove 202a and activity arc 202b on the piece 202, arc 202a is by placing the sunken formation of piece 202 top terminal surface, activity arc 202b rotates and connects arc 202a inner wall, after conveying slide 203 and grasping the cement pipe, driving motor, make limiting plate 305 remove to the horizontal state from vertical state, limiting plate 305 just can not play the supporting role to activity arc 202b this moment, the junction of activity arc 202b and arc 202a adopts the torsional spring, consequently, activity arc 202b is after being extrudeed by the cement pipe and descending, can the return, when conveying second cement pipe, when will convey slide 203 and remove to centre gripping track 201a department, driving motor once more, make the screw rod 302 overturn, make limiting plate 305 shift to vertical state from the horizontal state, continue to play a supporting role to activity arc 202 b.
Referring to fig. 5, placing block 202 both sides and being provided with and carrying slide 203, being provided with universal wheel 203b in the conveying track 201, universal wheel 203b connects the top and the bottom of carrying slide 203, carries on the slide 203 terminal surface connecting frame ring 203c, and the cement pipe is erect to frame ring 203c, and universal wheel 203b conveniently removes labour saving and time saving to the cement pipe.
Example 3
Referring to fig. 1 and 3, this embodiment is based on the previous embodiment, a first gear 301a is disposed on a motor 301, a screw 302 is connected to a second gear 302a, the screws 302 are symmetrically disposed on both sides of the motor 301, the inner side of a conveyor belt 306 is connected to the first gear 301a and the second gear 302a, and the rotation of the screws 302 on both sides is realized by the cooperation transmission of the conveyor belt 306 and the first gear 301a and the second gear 302 a.
One end of the supporting rod 304 is provided with a first rotating rod 304a, the other end of the supporting rod 304 is provided with a rotating groove 304b, the first rotating rod 304a is rotatably connected with the outer wall of the conveying track 201, the limiting plate 305 is connected with a second rotating rod 305a, the rotating groove 304b is rotatably connected with the second rotating rod 305a, and the supporting rod 304 supports the limiting plate 305.
The shock absorption protection plate 102 is provided with a plurality of, and is the linear array and sets up on the bottom terminal surface that holds the chamber 100a, and the center line that the delivery track 201 used shock absorption protection plate 102 sets up in the both sides of shock absorption protection plate 102 as axisymmetric.
Claims (9)
1. The utility model provides a cement concrete pressure pipe loading and unloading mechanism which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a protection unit (100), the protection unit (100) comprising an outer shell (101), a containing cavity (100 a) arranged inside the outer shell (101) and a damping protection plate (102), the containing cavity (100 a) being internally provided with the damping protection plate (102), and,
a transportation unit (200), wherein the transportation unit (200) comprises a conveying track (201), a placing block (202) and a conveying sliding plate (203), the conveying track (201) is arranged in the accommodating cavity (100 a), the placing block (202) is connected with the inner wall of the outer shell (101), the conveying sliding plate (203) is arranged on the conveying track (201),
upset spacing unit (300), upset spacing unit (300) include motor (301), screw rod (302), fixed block (303), bracing piece (304), limiting plate (305) and conveyer belt (306), upset spacing unit (300) set up inside placing block (202), motor (301) and screw rod (302) are connected in conveyer belt (306), screw rod (302) rotate and connect fixed block (303), delivery track (201) is connected to bracing piece (304) one end, and bracing piece (304) other end rotates connects limiting plate (305).
2. The cement concrete pressure pipe handling mechanism of claim 1, wherein: the utility model discloses a push rod, including shell body (101), outer casing (101) top end face is provided with perpendicular groove (101 a), shell body (101) one side is provided with spacing groove (101 b) and observation hole (101 c), push rod (203 a) are connected in transport slide (203), push rod (203 a) sliding connection spacing groove (101 b) inner wall.
3. The cement concrete pressure tube handling mechanism of claim 1, wherein: the damping protection plate is characterized in that the end face of the bottom of the damping protection plate (102) is connected with a damping spring (102 a), an air bag (102 b) is arranged on the damping protection plate (102), and an inflatable arc edge (102 c) is arranged on the side face of the damping protection plate (102).
4. The cement concrete pressure pipe handling mechanism of claim 1, wherein: the top end face and the bottom end face of the accommodating cavity (100 a) are connected with a conveying track (201), one end of the conveying track (201) is connected with a clamping track (201 a), and one side of the conveying track (201) is connected with a placing track (201 b).
5. The cement concrete pressure pipe handling mechanism of claim 1, wherein: an arc-shaped groove (202 a) and a movable arc plate (202 b) are arranged on the placing block (202), the arc-shaped groove (202 a) is formed by sinking of the top end face of the placing block (202), and the movable arc plate (202 b) is rotatably connected with the inner wall of the arc-shaped groove (202 a).
6. The cement concrete pressure pipe handling mechanism of claim 5, wherein: the conveying sliding plates (203) are arranged on two sides of the placing block (202), universal wheels (203 b) are arranged in the conveying track (201), the universal wheels (203 b) are connected with the top and the bottom of the conveying sliding plates (203), and the end faces of the conveying sliding plates (203) are connected with frame rings (203 c).
7. The cement concrete pressure pipe handling mechanism of claim 6, wherein: the motor (301) is provided with a first gear (301 a), the screw rods (302) are connected with a second gear (302 a), the screw rods (302) are symmetrically arranged on two sides of the motor (301), and the inner side of the conveyor belt (306) is connected with the first gear (301 a) and the second gear (302 a).
8. A cement concrete pressure tube handling mechanism as claimed in claim 3, wherein: bracing piece (304) one end is provided with first dwang (304 a), and the bracing piece (304) other end is provided with rotates groove (304 b), first dwang (304 a) are rotated and are connected delivery track (201) outer wall, second dwang (305 a) are connected to limiting plate (305), rotate groove (304 b) and rotate and connect second dwang (305 a).
9. The cement concrete pressure tube handling mechanism of claim 4, wherein: the conveying tracks (201) are symmetrically arranged on two sides of the damping protection plate (102) by taking the central line of the damping protection plate (102) as an axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211162447.XA CN115231229A (en) | 2022-09-23 | 2022-09-23 | Cement concrete pressure pipe loading and unloading mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211162447.XA CN115231229A (en) | 2022-09-23 | 2022-09-23 | Cement concrete pressure pipe loading and unloading mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115231229A true CN115231229A (en) | 2022-10-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211162447.XA Withdrawn CN115231229A (en) | 2022-09-23 | 2022-09-23 | Cement concrete pressure pipe loading and unloading mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115231229A (en) |
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| CN206361078U (en) * | 2016-12-01 | 2017-07-28 | 昆明理工大学 | A kind of damping backplate with air bag |
| CN207417933U (en) * | 2017-11-08 | 2018-05-29 | 山东建筑大学 | A kind of large-scale cement pipe handler |
| CN207874810U (en) * | 2018-01-26 | 2018-09-18 | 福建恒杰塑业新材料有限公司 | A kind of tubing transfer carriage |
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| CN208915208U (en) * | 2018-08-24 | 2019-05-31 | 赣州市航发新型建材有限公司 | A kind of cement culvert pipe short distance transfer device |
| CN212386562U (en) * | 2020-06-12 | 2021-01-22 | 董苏 | Pipeline handling device for water utilization |
| CN212606679U (en) * | 2020-05-07 | 2021-02-26 | 曹瑞祥 | A pipeline frame for hydraulic engineering pipeline closely transports |
| CN213293213U (en) * | 2020-09-30 | 2021-05-28 | 广东联星瑞业水泥制品有限公司 | Cement pipe transportation protection anchor clamps |
| CN213595809U (en) * | 2020-11-16 | 2021-07-02 | 咸宁市咸安区电宏水泥制杆有限公司 | A handling device for cement pipe removes |
| CN213745495U (en) * | 2020-09-21 | 2021-07-20 | 刘林 | Petrochemical transportation pipeline support |
| CN214885615U (en) * | 2021-04-19 | 2021-11-26 | 宣城建工市政工程有限公司 | Material transfer equipment for building engineering |
| CN216188959U (en) * | 2021-10-15 | 2022-04-05 | 李梦雪 | Support frame for large-scale cement pipeline transportation unloading |
-
2022
- 2022-09-23 CN CN202211162447.XA patent/CN115231229A/en not_active Withdrawn
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206361078U (en) * | 2016-12-01 | 2017-07-28 | 昆明理工大学 | A kind of damping backplate with air bag |
| CN207417933U (en) * | 2017-11-08 | 2018-05-29 | 山东建筑大学 | A kind of large-scale cement pipe handler |
| CN207874810U (en) * | 2018-01-26 | 2018-09-18 | 福建恒杰塑业新材料有限公司 | A kind of tubing transfer carriage |
| CN108658004A (en) * | 2018-03-30 | 2018-10-16 | 浙江工业大学之江学院 | A kind of hydraulic engineering pipeline transportation transferring device |
| CN208915208U (en) * | 2018-08-24 | 2019-05-31 | 赣州市航发新型建材有限公司 | A kind of cement culvert pipe short distance transfer device |
| CN212606679U (en) * | 2020-05-07 | 2021-02-26 | 曹瑞祥 | A pipeline frame for hydraulic engineering pipeline closely transports |
| CN212386562U (en) * | 2020-06-12 | 2021-01-22 | 董苏 | Pipeline handling device for water utilization |
| CN213745495U (en) * | 2020-09-21 | 2021-07-20 | 刘林 | Petrochemical transportation pipeline support |
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| CN216188959U (en) * | 2021-10-15 | 2022-04-05 | 李梦雪 | Support frame for large-scale cement pipeline transportation unloading |
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Application publication date: 20221025 |