CN217125588U - Storage tank for transporting fracturing proppants - Google Patents

Storage tank for transporting fracturing proppants Download PDF

Info

Publication number
CN217125588U
CN217125588U CN202221060749.1U CN202221060749U CN217125588U CN 217125588 U CN217125588 U CN 217125588U CN 202221060749 U CN202221060749 U CN 202221060749U CN 217125588 U CN217125588 U CN 217125588U
Authority
CN
China
Prior art keywords
storage box
groove
transporting
sealing cover
feed opening
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
Application number
CN202221060749.1U
Other languages
Chinese (zh)
Inventor
王久涛
张福祥
熊林
欧阳业振
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhouji Strait Energy Technology Co ltd
Original Assignee
Zhouji Strait Energy Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhouji Strait Energy Technology Co ltd filed Critical Zhouji Strait Energy Technology Co ltd
Priority to CN202221060749.1U priority Critical patent/CN217125588U/en
Application granted granted Critical
Publication of CN217125588U publication Critical patent/CN217125588U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Closures For Containers (AREA)

Abstract

The utility model relates to a storage box for transporting fracturing propping agent, including storage box main part and sealed lid, the top of storage box main part is equipped with the feed opening, and sealed lid can cover and close in feed opening department. At least two bearing plates are fixedly arranged on the top surface of the storage box main body, and each bearing plate is arranged around the feed opening. The bearing plate is internally provided with a groove with a notch facing the feed opening, and the clamping plate is inserted in the groove in a sliding manner. At least two clamping grooves are formed in the circumferential direction of the sealing cover at intervals, a driving device is further arranged in the bearing plate, and the driving device is connected with the clamping plate and can drive the clamping plate to extend out of the groove and be clamped in the corresponding clamping grooves. The utility model discloses a fracturing propping agents storage box can effectively solve on the current storage box jar apron and do not have waterproof function, leads to rainwater from last jar apron department to flow in the inside problem of storage box when rainy day.

Description

Storage tank for transporting fracturing proppants
Technical Field
The utility model relates to a storage box technical field especially relates to a storage box for transporting fracturing propping agent.
Background
The storage boxes for transporting the fracturing propping agent are mainly used for storing and transporting sand, and are matched with corresponding sand conveying sleds, and the sand conveying sleds can be loaded with a certain number of storage boxes, so that continuous sand conveying can be realized, and the hoisting times are greatly reduced; meanwhile, the control mode of the sand tank sand discharging valve of the storage box is hydraulic control, and the opening of the valve can be controlled in real time, so that the purpose of adjusting the sand discharging amount is achieved.
However, the upper tank opening cover plate of the existing storage box for transporting fracturing propping agents does not have a waterproof function, so that rainwater flows into the storage box from the upper tank opening cover plate in rainy days, and the quality of internal sand is influenced.
Accordingly, the present inventors have developed a storage tank for transporting fracturing proppants to overcome the deficiencies of the prior art by virtue of experience and practice in the related industries over the years.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a storage box for transporting fracturing propping agent, can effectively solve the current storage box and go up the jar oral siphon and do not have waterproof function, lead to rainwater from last oral siphon and lap the inside problem of inflow storage box when rainy day.
The utility model aims at realizing the purpose, and discloses a storage box for transporting fracturing propping agent, which comprises a storage box main body and a sealing cover, wherein the top of the storage box main body is provided with a feed opening, and the sealing cover can cover the feed opening; at least two bearing plates are fixedly arranged on the top surface of the storage box main body, and each bearing plate is arranged around the feed opening; a groove with a notch facing the feed opening is formed in the bearing plate, and a clamping plate is inserted in the groove in a sliding manner; at least two clamping grooves are formed in the circumferential direction of the sealing cover at intervals, a driving device is further arranged in the bearing plate, and the driving device is connected with the clamping plate and can drive the clamping plate to extend out of the groove and be clamped in the corresponding clamping grooves.
In a preferred embodiment of the present invention, the driving device comprises a gear and a rack, the gear is rotatably disposed in the bearing plate, and one end of the rack is fixedly connected to the clamping plate; the gear is meshed with the rack and can drive the clamping plate to slide through the rack.
In a preferred embodiment of the present invention, the driving device further comprises an installation shaft and a rotary table, the gear sleeve is fixed on the installation shaft, and the rotary table is fixed at the top end of the installation shaft; a first mounting cavity and a second mounting cavity which are communicated with each other are further arranged in the bearing plate, and the first mounting cavity is communicated with the groove; the rack can be installed in first installation intracavity slidably, and the gear can be installed in the second installation intracavity rotatably, and the top of installation axle stretches out the top surface of loading board, and the carousel is located the top surface outside of loading board.
The utility model discloses an among the preferred embodiment, the bottom of installation axle has still set firmly spacing dish, has still seted up the spacing groove on the chamber diapire of second installation cavity, and spacing dish can inlay with rotating and establish at the spacing inslot.
In a preferred embodiment of the present invention, the side of the clamping plate close to the feeding opening has an inclined guiding surface.
In a preferred embodiment of the present invention, the sealing cover is a square plate, four slots are provided in four sides of the sealing cover, and the number of the bearing plates is four and is respectively corresponding to the corresponding sides of the sealing cover; the draw-in groove is rectangular groove, and the cardboard is the rectangular plate body, and the length direction of draw-in groove and cardboard all is on a parallel with the corresponding side of sealed lid.
In a preferred embodiment of the present invention, the sealing cover is a circular plate, two slots are symmetrically disposed on two sides of the sealing cover, and the two bearing plates are symmetrically distributed on two sides of the sealing cover; the clamping groove is an arc-shaped groove, and the clamping plate is an arc-shaped plate body.
In a preferred embodiment of the present invention, the feed opening is a circular hole, and a first annular groove surrounding the feed opening is further formed at the top of the storage box main body; the bottom of the sealing cover is convexly provided with a round convex block, the bottom surface of the round convex block is provided with a second ring groove, the part of the storage box main body between the first ring groove and the feed opening can be inserted in the second ring groove, and the part of the round convex block outside the second ring groove can be inserted in the first ring groove.
The utility model discloses an in a preferred embodiment, it has many fixed columns to set firmly still to circumference interval in the outer peripheral face of storage box main part to just be located and set firmly an at least support column between two adjacent fixed columns in the bottom side of storage box main part.
The utility model discloses an in the preferred embodiment, set firmly the ear seat on every fixed column, wear to be equipped with the connecting axle in the ear seat internal energy ground of rotating to be equipped with rings on the connecting axle, rings's both ends can the pivoted cover establish the both ends at the connecting axle.
From above, the utility model discloses in a storage box that is used for transporting fracturing propping agent, when meetting rainy day, cover sealed lid back, stretch out and block in the draw-in groove of establishing in the loading board through drive arrangement drive cardboard, alright with sheltering from the shutoff with the gap between sealed lid and each loading board, played waterproof effect, avoid the rainwater to flow in the inside of storage box main part, guaranteed the quality of fracturing propping agent.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
FIG. 1: for the utility model provides a structure picture one of storage box for transporting fracturing propping agent.
FIG. 2: for the utility model provides a structure picture two of a storage box for transporting fracturing propping agents.
FIG. 3: for the utility model provides a loading board, cardboard and drive arrangement complex split picture.
FIG. 4: do the utility model provides a cardboard and drive arrangement complex split view.
The reference numbers illustrate:
1. a storage box main body; 11. a feeding port; 12. a first ring groove;
2. a sealing cover; 21. a card slot; 22. a circular bump; 221. a second ring groove; 23. a handle;
3. a carrier plate; 31. a groove; 32. a first mounting cavity; 33. a second mounting cavity; 34. perforating; 35. a limiting groove;
4. clamping a plate; 41. an inclined guide surface;
5. a drive device; 51. a rack; 52. a turntable; 53. installing a shaft; 54. a gear; 55. a limiting disc;
6. fixing a column;
7. a support pillar;
8. an ear mount; 81. a connecting shaft; 82. a lifting ring.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 4, the present embodiment provides a storage box for transporting fracturing propping agent, which includes a storage box main body 1 and a sealing cover 2, wherein a feed opening 11 is arranged at the top of the storage box main body 1, and the sealing cover 2 can cover the feed opening 11. At least two bearing plates 3 are fixedly arranged on the top surface of the storage box main body 1, and each bearing plate 3 is arranged around the feed opening 11; a groove 31 with a notch facing the feed opening 11 is formed in the bearing plate 3, and a clamping plate 4 is inserted in the groove 31 in a sliding manner; at least two clamping grooves 21 are arranged at the circumferential interval of the sealing cover 2 (the number of the clamping grooves 21 is the same as that of the clamping plates 4), a driving device 5 is further arranged in the bearing plate 3, the bearing plate 3 is convenient to bear the driving device 5, and the driving device 5 is connected with the clamping plates 4 and can drive the clamping plates 4 to extend out of the grooves 31 and be clamped in the corresponding clamping grooves 21.
From this, the storage box that is used for transporting fracturing propping agent in this embodiment, when meetting rainy day, cover sealed lid 2 back, stretch out and the card is established in the draw-in groove 21 in loading board 3 through drive arrangement 5 drive cardboard 4, alright with shelter from the shutoff with the gap between sealed lid 2 and each loading board 3, played waterproof effect, avoid the rainwater to flow into the inside of storage box main part 1, guaranteed the quality of fracturing propping agent.
In a specific implementation manner, in order to facilitate the driving of the sliding of the card board 4, the driving device 5 includes a gear 54 and a rack 51, the gear 54 is rotatably disposed in the bearing plate 3, and one end of the rack 51 is fixedly connected with the card board 4; the gear 54 is engaged with the rack 51 (one side of the rack 51 has teeth, and the gear 54 is engaged with and driven by one side of the rack 51), and can drive the card board 4 to slide through the rack 51. The rotating gear 54 can drive the card board 4 to extend out of the card slot 21 or retract into the card slot 21 through the transmission of the rack 51.
For easier installation and operation, the driving device 5 further includes a mounting shaft 53 and a rotating disc 52, the gear 54 is sleeved and fixed on the mounting shaft 53, and the rotating disc 52 is fixed at the top end of the mounting shaft 53; a first mounting cavity 32 and a second mounting cavity 33 which are communicated with each other are further arranged in the bearing plate 3, and the first mounting cavity 32 is communicated with the groove 31; the rack 51 is slidably mounted in the first mounting chamber 32, the gear 54 is rotatably mounted in the second mounting chamber 33, the top end of the mounting shaft 53 protrudes out of the top surface of the carrier plate 3, and the rotating disk 52 is located outside the top surface of the carrier plate 3.
The shape of the groove 31 and the mounting cavities may be determined as required, for example, in the embodiment, as shown in fig. 3, the bearing plate 3 is a rectangular plate, the groove 31 is a rectangular groove, the first mounting cavity 32 and the second mounting cavity 33 are both rectangular cavities, and the length direction of the first mounting cavity 32 is perpendicular to the length direction of the groove 31, so as to accommodate the strip-shaped rack 51. A through hole 34 communicating with the second mounting cavity 33 is formed in the top surface of the carrier plate 3, and the top end of the mounting shaft 53 rotatably penetrates through the through hole 34. An operator drives the gear 54 to rotate by rotating the turntable 52, and the clamping plate 4 can be driven to extend or retract by the meshing transmission action of the gear 54 and the rack 51, so that the operation is simple and convenient.
Further, the bottom of installation axle 53 still sets firmly spacing dish 55, has still seted up spacing groove 35 on the chamber diapire of second installation cavity 33, and spacing dish 55 can inlay with rotating and establish in spacing groove 35. Utilize spacing groove 35 to spacing disk 55's limiting displacement, be convenient for spacing gear 54, improve the stability of structure.
Preferably, the side of the card 4 close to the feed opening 11 has an inclined guide surface 41 to facilitate the sliding insertion of the card 4 into the card slot 21.
The quantity of general loading board 3 and the shape of cardboard 4 should cooperate with the shape of sealed lid 2, and specifically can be as required and decide, as long as loading board 3 can be as many as possible enclose establish the periphery of sealed lid 2 to utilize each cardboard 4 card behind the draw-in groove 21 that corresponds, can be with the periphery of sealed lid 2 more shelter from can, in order effectively to guarantee water-proof effects.
For example, the sealing cover 2 is a square plate, four clamping grooves 21 are formed in four side surfaces of the sealing cover 2, and the number of the bearing plates 3 is four and is respectively arranged corresponding to the corresponding side surfaces of the sealing cover 2; the clamping groove 21 is a rectangular groove, the clamping plate 4 is a rectangular plate body, and the length directions of the clamping groove 21 and the clamping plate 4 are both parallel to the corresponding side faces of the sealing cover 2, as shown in fig. 1 (only two bearing plates 3 are shown in fig. 1, and the other two bearing plates are not shown). Four cardboard 4 cards all around through sealed lid 2 are in four draw-in grooves 21, can shelter from the clearance of 2 peripheries of sealed lid basically, prevent the rainwater inflow.
For another example, the sealing cover 2 is a circular plate, two clamping grooves 21 are symmetrically formed in two sides of the sealing cover 2, and the two bearing plates 3 are symmetrically distributed on two sides of the sealing cover 2; the clamping groove 21 is an arc-shaped groove, and the clamping plate 4 is an arc-shaped plate body. Utilize two arc cardboard 4 cards to establish behind two draw-in grooves 21, two arc cardboard 4 can surround the overwhelming majority of sealed lid 2 whole week to effectively prevent the rainwater inflow.
Further preferably, the feed opening 11 is a circular hole, and a first annular groove 12 surrounding the feed opening 11 is further formed in the top of the storage box main body 1; the round convex block 22 is convexly arranged at the bottom of the sealing cover 2, the bottom surface of the round convex block 22 is provided with a second ring groove 221, the part of the storage box main body 1 between the first ring groove 12 and the feed opening 11 can be inserted in the second ring groove 221, and the part of the round convex block 22 outside the second ring groove 221 can be inserted in the first ring groove 12. The sealing cover 2 is connected with the storage box main body 1 in an inserting mode, so that the sealing cover can play a certain sealing role even if the sealing cover is closed, and rainwater can be better prevented from flowing in. A handle 23 is also typically fixedly attached to the upper surface of the seal cap 2 for ease of handling.
Further, still circumference interval has set firmly many fixed columns 6 at the outer peripheral face of storage box main part 1 to bottom side at storage box main part 1 just is located and sets firmly at least one support column 7 between two adjacent fixed columns 6. Through the cooperation of fixed column 6 and support column 7 to be convenient for support storage box main part 1, and be convenient for with corresponding defeated sand sled cooperation be connected. Each fixed column 6 should be vertical, and each support column 7 is vertical, and specific quantity can be decided as required, for example in this embodiment storage box main part 1 is square box and its lower part is the toper structure of the downward convergent of cross-sectional dimension, and fixed column 6 and support column 7 are the rectangle body of rod, and fixed column 6 is equipped with four altogether and sets firmly four turning positions around square box, all is equipped with two support columns 7 in every side bottom of square box. The bottom frame can also be set firmly at the bottom of fixed column 6 and support column 7 as required, and the bottom of storage box main part 1 can also set firmly many down tube to play better supporting role and improve the stability of structure.
Furthermore, an ear seat 8 is fixedly arranged on each fixed column 6, a connecting shaft 81 is arranged in the ear seat 8 in a penetrating manner in a rotating manner, a hanging ring 82 is arranged on the connecting shaft 81, and two ends of the hanging ring 82 are sleeved at two ends of the connecting shaft 81 in a rotating manner.
The ear mount 8 may be, for example, an arc-shaped plate shown in fig. 2, or may have another shape in which a plate surface thereof is vertically arranged. A through hole is arranged on the ear seat 8, the connecting shaft 81 is horizontally arranged and penetrates through the through hole, and two ends of the connecting shaft 81 extend out of the through hole. The hanging ring 82 is a U-shaped structure, two mounting rings are fixedly arranged at two ends of the U-shaped structure, the two mounting rings can be rotatably sleeved at two ends of the connecting shaft 81, and limiting nuts are arranged at two ends of the connecting shaft 81 and outside the mounting rings. The hoisting rings 82 on the fixed columns 6 are used for facilitating hoisting.
Further, the working principle of the storage tank for transporting fracturing propping agents in the embodiment is as follows:
when the storage box is used, in an initial state, a fixing column 6 and a supporting column 7 are fixed on the outer surface and the bottom side surface of the storage box main body 1 so as to support the storage box main body 1 and are matched and connected with corresponding sand conveying sleds; an ear seat 8 is fixed on the side surface of the fixed column 6, and is matched with the connecting shaft 81 and the hanging ring 82 through the ear seat 8 so as to be convenient for hoisting; the first ring groove 12 is formed in the top of the storage box main body 1, and the top sealing performance of the storage box main body 1 can be improved through the matching of the first ring groove 12 and the sealing cover 2.
When rainwater needs to be prevented from flowing into the inside of the storage box main body 1, the rotary table 52 is firstly rotated, so that the rotary table 52 drives the gear 54 to rotate, at the moment, the gear 54 drives the rack 51 and the clamping plate 4 to slide into the first mounting cavity 32 and the groove 31, then the sealing cover 2 is clamped into the first annular groove 12, and the rotary table 52 is rotated again, so that the clamping plate 4 is inserted into the clamping groove 21, and rainwater is prevented from flowing into the inside of the storage box main body 1.
When the sealing cover 2 needs to be taken down, the rotating disc 52 is rotated, so that the rotating disc 52 drives the gear 54 and the limiting disc 55 to rotate, at the moment, the limiting disc 55 rotates inside the limiting groove 35, and the gear 54 is conveniently limited through the limiting disc 55; meanwhile, the gear 54 drives the clamping plate 4 to be separated from the inside of the clamping groove 21 through the rack 51, the sealing cover 2 is not limited at the moment, and the handle 23 is pulled to enable the sealing cover 2 to be separated from the inside of the first annular groove 12, so that the sealing cover 2 can be taken down conveniently.
The above are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.

Claims (10)

1. The storage box for transporting the fracturing propping agent is characterized by comprising a storage box main body and a sealing cover, wherein a feed opening is formed in the top of the storage box main body, and the sealing cover can cover the feed opening;
at least two bearing plates are fixedly arranged on the top surface of the storage box main body, and each bearing plate is arranged around the feed opening; a groove with a notch facing the feed opening is formed in the bearing plate, and a clamping plate is inserted in the groove in a sliding manner; at least two clamping grooves are formed in the circumferential direction of the sealing cover at intervals, a driving device is further arranged in the bearing plate, and the driving device is connected with the clamping plate and can drive the clamping plate to extend out of the groove and be clamped in the corresponding clamping groove.
2. A storage tank for transporting fracturing proppant as set forth in claim 1,
the driving device comprises a gear and a rack, the gear can be rotatably arranged in the bearing plate, and one end of the rack is fixedly connected with the clamping plate; the gear is meshed with the rack and can drive the clamping plate to slide through the rack.
3. A storage tank for transporting fracturing proppant as set forth in claim 2,
the driving device further comprises an installation shaft and a rotary table, the gear is sleeved and fixed on the installation shaft, and the rotary table is fixedly arranged at the top end of the installation shaft; a first mounting cavity and a second mounting cavity which are communicated with each other are further arranged in the bearing plate, and the first mounting cavity is communicated with the groove; the rack can be slidably installed in the first installation cavity, the gear can be rotatably installed in the second installation cavity, the top end of the installation shaft extends out of the top surface of the bearing plate, and the rotary disc is located on the outer side of the top surface of the bearing plate.
4. A storage tank for transporting fracturing proppant as set forth in claim 3,
the bottom of installation axle still sets firmly spacing dish still seted up the spacing groove on the chamber diapire of second installation cavity, spacing dish can inlay with rotating and establish spacing inslot.
5. A storage tank for transporting fracturing proppant as set forth in claim 1,
one side of the clamping plate close to the feed opening is provided with an inclined guide surface.
6. A storage tank for transporting fracturing proppant as set forth in claim 1,
the sealing cover is a square plate body, four clamping grooves are formed in the four side faces of the sealing cover, and the four bearing plates are arranged corresponding to the corresponding side faces of the sealing cover respectively; the clamping groove is a rectangular groove, the clamping plate is a rectangular plate body, and the length directions of the clamping groove and the clamping plate are parallel to the corresponding side faces of the sealing cover.
7. A storage tank for transporting fracturing proppant as set forth in claim 1,
the sealing cover is a circular plate body, two clamping grooves are symmetrically formed in two sides of the sealing cover, and the two bearing plates are symmetrically distributed on two sides of the sealing cover; the clamping groove is an arc-shaped groove, and the clamping plate is an arc-shaped plate body.
8. A storage tank for transporting fracturing proppant as set forth in claim 1,
the feed opening is a circular hole, and a first annular groove surrounding the feed opening is further formed in the top of the storage box main body; the protruding round convex block that is equipped with in the bottom of sealed lid, the second annular has been seted up to round convex block's bottom surface, first annular with this part between the feed opening the storage box main part can be inserted and establish in the second annular, this part in the second annular outside round convex block can insert and establish in the first annular.
9. A storage tank for transporting fracturing proppant as set forth in claim 1,
the outer peripheral face of the storage box main body is further provided with a plurality of fixing columns at intervals in the circumferential direction, and the side face of the bottom of the storage box main body is located between every two adjacent fixing columns and is provided with at least one supporting column.
10. A storage tank for transporting frac proppant as set forth in claim 9,
and each fixing column is fixedly provided with an ear seat, a connecting shaft is arranged in the ear seat in a penetrating way in a rotating way, the connecting shaft is provided with a hanging ring, and two ends of the hanging ring are sleeved at two ends of the connecting shaft in a rotating way.
CN202221060749.1U 2022-04-29 2022-04-29 Storage tank for transporting fracturing proppants Active CN217125588U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221060749.1U CN217125588U (en) 2022-04-29 2022-04-29 Storage tank for transporting fracturing proppants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221060749.1U CN217125588U (en) 2022-04-29 2022-04-29 Storage tank for transporting fracturing proppants

Publications (1)

Publication Number Publication Date
CN217125588U true CN217125588U (en) 2022-08-05

Family

ID=82651767

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221060749.1U Active CN217125588U (en) 2022-04-29 2022-04-29 Storage tank for transporting fracturing proppants

Country Status (1)

Country Link
CN (1) CN217125588U (en)

Similar Documents

Publication Publication Date Title
CN217125588U (en) Storage tank for transporting fracturing proppants
CN209583337U (en) A kind of coal mine lifting device
CN211283635U (en) Deep water construction transport equipment in hydraulic engineering dam
CN108393017A (en) A kind of medical treatment box device
CN213000340U (en) Coating grinding barrel
CN208742427U (en) Mixing device is used in a kind of production of captopril intermediate
CN208499123U (en) One kind being used for the breakage-proof bottle of oral liquid filling
CN209582709U (en) Deep Foundation Pit Excavation vertically takes indigenous equipment
CN218862125U (en) Stable hopper for building engineering of unloading
CN215598835U (en) Cell staining device with turnover liquid pouring mechanism
CN206821560U (en) A kind of irrigation device of ecological three-dimensional green wall
CN208273539U (en) A kind of novel greening afforestation equipment
CN215744556U (en) Gluing device for neodymium iron boron machining
CN211328262U (en) Novel oil sauce separation and standing device
CN215895398U (en) Waterproof computer case frame convenient to remove
CN206793538U (en) A kind of processing of high molecular material mixing device
CN218124439U (en) Double-kettle stirring type glue pouring machine
CN214916664U (en) Quartz sand ball-milling device
CN220955604U (en) Grouting plugging structure for tunnel lining trolley
CN215761747U (en) Geological exploration safety protection is with preventing device that collapses
CN217844682U (en) Feeding equipment of clean rotary kiln
CN211174739U (en) Horizontal drainage pump suitable for small water absorption pool with unstable water inflow
CN219698614U (en) Seedling root system protection device with gas permeability
CN218250590U (en) Convenient reinforced grinding dispersion machine in succession
CN212099830U (en) Computer accessories conveyer

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant