CN116191326A - Electrical engineering cable protection device - Google Patents

Electrical engineering cable protection device Download PDF

Info

Publication number
CN116191326A
CN116191326A CN202310340611.XA CN202310340611A CN116191326A CN 116191326 A CN116191326 A CN 116191326A CN 202310340611 A CN202310340611 A CN 202310340611A CN 116191326 A CN116191326 A CN 116191326A
Authority
CN
China
Prior art keywords
block
blocks
sliding
protection device
upper cover
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.)
Withdrawn
Application number
CN202310340611.XA
Other languages
Chinese (zh)
Inventor
谭帅
张利娜
李定珍
刘尚争
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.)
Nanyang Institute of Technology
Original Assignee
Nanyang Institute of Technology
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 Nanyang Institute of Technology filed Critical Nanyang Institute of Technology
Priority to CN202310340611.XA priority Critical patent/CN116191326A/en
Publication of CN116191326A publication Critical patent/CN116191326A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/04Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406Details thereof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/04Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406Details thereof
    • H02G3/0418Covers or lids; Their fastenings

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Details Of Indoor Wiring (AREA)

Abstract

The invention discloses an electrical engineering cable protection device which comprises a base, wherein an upper cover is arranged on the base in a sliding manner, a first sliding block is arranged on the upper cover in a sliding manner, a pressing mechanism is arranged on the first sliding block, each pressing mechanism comprises a plurality of first installation blocks arranged on the first sliding block in a sliding manner, each first installation block is provided with a vertical rod in a sliding manner, the vertical rods are connected with the first installation blocks through a second spring, each vertical rod is fixedly connected with a first extrusion block, two first clamping blocks are arranged on the first sliding block in a sliding manner, the two first clamping blocks are connected through a first spring, and each first clamping block is provided with an extrusion groove. The first clamping block and the first extrusion rod are matched with each other, so that the plurality of cable bodies can be fixed separately, and cable bodies with different specifications can be fixed, so that the cable body is convenient to install, time-saving and labor-saving, and the installation efficiency is improved.

Description

Electrical engineering cable protection device
Technical Field
The invention relates to the technical field of power engineering, in particular to an electric engineering cable protection device.
Background
As an indispensable part of modern electric engineering, the coverage area of the electric engineering is quite wide, so that engineering cables required for the electric engineering are spread everywhere, the cables are fragile and are easily damaged by external force, and therefore, cable protection devices are required for protecting the cables.
However, most of the existing power engineering cable protection devices are mainly fixed by one time when cables are installed, the cables are large in size, inconvenient to take and slip, and inconvenient to install, time-consuming and labor-consuming, so that installation efficiency is reduced.
Disclosure of Invention
The invention aims to solve the defects in the prior art that when raw materials are needed to be added into a mixer, most of the raw materials are placed beside a production device of a V-shaped mixer for powder veterinary drugs, a worker takes a charging barrel filled with the raw materials off and then pours the raw materials into the mixer from a charging hole, the operation is time-consuming and labor-consuming, the operation is quite inconvenient, and the normal operation of production work is not facilitated.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the electric engineering cable protection device comprises a base, wherein an upper cover is arranged on the base in a sliding manner, and a first sliding block is arranged on the upper cover in a sliding manner;
the first sliding blocks are provided with pressing mechanisms, each pressing mechanism comprises a plurality of first installation blocks which are arranged in a sliding mode through the first sliding blocks, each first installation block is provided with a vertical rod in a sliding mode, each vertical rod is connected with the first installation block through a second spring, each vertical rod is fixedly connected with a first extrusion block, each first sliding block is provided with two first clamping blocks in a sliding mode, the two first clamping blocks are connected through the first springs, each first clamping block is provided with an extrusion groove, each first sliding block is connected with two first extrusion rods in a sliding mode, each first extrusion rod is fixedly connected with the transverse plate in a sliding mode, the upper cover is provided with a reciprocating screw rod in a threaded mode, and the reciprocating screw rod is connected with the transverse plate in a rotating mode;
every all be provided with adjustment mechanism on the first installation piece, adjustment mechanism includes two second fixture blocks that slide on the first installation piece and set up, every the second fixture block is all connected with the first installation piece through the third spring, a plurality of draw-in grooves have been seted up on the first slider, every the second fixture block all with draw-in groove joint, threaded connection has the second extrusion piece on the first installation piece, every the second fixture block all with second extrusion piece sliding connection.
Preferably, the base is provided with a plurality of cable bodies, a plurality of first positioning grooves are formed in the base and the upper cover, and each cable body is slidably connected with the corresponding first positioning groove.
Preferably, the base is fixedly connected with two baffles, each baffle is in sliding connection with the upper cover, and each first clamping block is in clamping connection with the corresponding baffle.
Preferably, the upper cover is fixedly connected with two positioning blocks, each baffle is provided with a second positioning groove, and the positioning blocks are in sliding connection with the second positioning grooves.
Preferably, the disc is fixedly connected to the reciprocating screw rod, a first limiting rod is connected to the disc in a sliding mode, a first limiting groove is formed in the upper cover, and the first limiting rod and the first limiting groove are clamped.
Preferably, the upper cover is provided with a plurality of heat dissipation holes, and the plurality of heat dissipation holes are equidistantly arranged.
Preferably, each second extrusion block is fixedly connected with a handle, and anti-skid patterns are arranged on the handles.
Preferably, a sliding groove is formed in the first sliding block, and each first clamping block is connected with the sliding groove in a sliding mode.
Preferably, the cross section of every the second fixture block all sets up to right trapezoid, fixedly connected with two second stopper on the first installation piece, a plurality of second spacing grooves have been seted up on the first slider, every second stopper all with corresponding second spacing groove sliding connection.
Preferably, two second installation blocks are fixedly connected to the base, the cross section of each second installation block is L-shaped, a plurality of bolts are connected to the second installation blocks in a threaded mode, and the bolts are symmetrically arranged.
Compared with the prior art, the invention has the beneficial effects that:
1. when the device is required to be used, acting force is applied to the disc, the disc rotates to drive the reciprocating screw rod to rotate, the reciprocating screw rod moves to drive the transverse plate to move, the transverse plate moves to drive the first sliding block to move, the first sliding block moves to drive the plurality of first installation blocks to move downwards vertically until the lower surface of the first sliding block is propped against the inner wall of the upper cover, at the moment, the first extrusion block compresses the corresponding cable body, and the cable bodies can be separately and fixedly arranged through the mutual matching of the first clamping block and the first extrusion rod.
2. When a certain cable body needs to be replaced due to damage, acting force is applied to the handles on the two corresponding first installation blocks, the handles rotate to drive the second extrusion blocks to move, so that the two second clamping blocks are far away from each other, vertical upward acting force is applied to the handles again, the two first installation blocks and the first sliding block slide relatively, the first installation blocks vertically move upwards, the first extrusion blocks installed on the first installation blocks do not extrude the damaged cable body, and when a certain cable needs to be replaced, the second extrusion blocks and the second clamping blocks are matched with each other, the second extrusion blocks can be replaced independently under the condition that other cable bodies are not affected, so that the operation is very simple, and the practicability of the device is improved.
Drawings
Fig. 1 is a schematic diagram of a front structure of an electrical engineering cable protection device according to the present invention;
fig. 2 is a schematic top view of an electrical engineering cable protection device according to the present invention;
FIG. 3 is a schematic diagram of a front cross-sectional structure of an electrical engineering cable protection device according to the present invention;
FIG. 4 is a schematic cross-sectional front view of the first slider and the upper cover;
fig. 5 is a schematic view of a partial enlarged structure of a in fig. 3.
In the figure: 1 base, 2 first fixture blocks, 3 handles, 4 second extrusion blocks, 5 first installation blocks, 6 discs, 7 first limit rods, 8 upper covers, 9 baffles, 10 positioning blocks, 11 cable bodies, 12 first extrusion rods, 13 first springs, 14 vertical rods, 15 extrusion grooves, 16 first extrusion blocks, 17 second installation blocks, 18 bolts, 19 heat dissipation holes, 20 first positioning grooves, 21 first sliding blocks, 22 second limit blocks, 23 second fixture blocks, 24 reciprocating screw rods and 25 transverse plates.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-5, an electrical engineering cable protection device, the on-line screen storage device comprises a base 1, the upper cover 8 is slidably arranged on the base 1, first slider 21 is provided with pressing mechanisms, each pressing mechanism comprises a plurality of first installation blocks 5 slidably arranged on the first slider 21, each first installation block 5 is slidably provided with a vertical rod 14, the vertical rods 14 are connected with the first installation blocks 5 through second springs, first extrusion blocks 16 are fixedly connected to each vertical rod 14, two first clamping blocks 2 are slidably arranged on the first slider 21, the two first clamping blocks 2 are connected through first springs 13, extrusion grooves 15 are formed in each first clamping block 2, two first extrusion rods 12 are slidably connected to the first slider 21, a transverse plate 25 is slidably arranged on each first slider 21, each first extrusion rod 12 is fixedly connected with the transverse plate 25, a reciprocating screw 24 is in threaded connection with the upper cover 8, the reciprocating screw 24 is rotationally connected with the transverse plate 25, the reciprocating screw 24 drives the transverse plate 25 to move, the first extrusion blocks 25 move against the first cable to the first installation blocks 21, and the first slider 21 are correspondingly moved against the first inner wall surface of the first slider 8, and the first slider 21 is correspondingly deformed to the first slider 21, and the first slider body is correspondingly moved under the first slider 21, and the first slider body is mounted on the first side of the upper cover 8.
Every all is provided with adjustment mechanism on the first installation piece 5, and adjustment mechanism includes two second fixture blocks 23 that slide on the first installation piece 5 and set up, and every second fixture block 23 all is connected with first installation piece 5 through the third spring, has seted up a plurality of draw-in grooves on the first slider 21, and every second fixture block 23 all and draw-in groove joint, threaded connection has second extrusion piece 4 on the first installation piece 5, every second fixture block 23 all and second extrusion piece 4 sliding connection.
Be provided with a plurality of cable body 11 on the base 1, a plurality of first constant head tanks 20 have all been seted up on base 1 and the upper cover 8, every cable body 11 all with the first constant head tank 20 sliding connection who corresponds, first constant head tank 20's setting, can place many cable body 11 separately, effectively prevent many cable body 11 winding together, thereby improve the practicality of this device, two baffles 9 of fixedly connected with on the base 1, every baffle 9 all with upper cover 8 sliding connection, every first fixture block 2 all with the baffle 9 joint that corresponds, baffle 9's setting can fix upper cover 8 in vertical and horizontal direction, two locating pieces 10 of fixedly connected with on the upper cover 8, the second constant head tank has all been seted up on every baffle 9, locating piece 10 and second constant head tank sliding connection, locating piece 10's setting can prevent to take place the skew when installing the upper cover 8, thereby improve the stability of this device.
The disc 6 is fixedly connected to the reciprocating screw rod 24, the first limiting rod 7 is connected to the disc 6 in a sliding manner, the first limiting grooves are formed in the upper cover 8, the first limiting rods 7 and the first limiting grooves are clamped, acting force is applied to the first limiting rods 7, the first limiting rods 7 and the disc 6 slide relatively until the first limiting rods 7 and the first limiting grooves are clamped, the plurality of radiating holes 19 are formed in the upper cover 8, the plurality of radiating holes 19 are equidistantly arranged, the arrangement of the radiating holes 19 can prevent the cable body 11 inside the device from being too high in temperature, the handles 3 are fixedly connected to each second extruding block 4, anti-skidding patterns are arranged on the handles 3, acting force is applied to the handles 3, the handles 3 move to drive the second extruding blocks 4 to move, and the friction force between the handles 3 and hands of workers can be increased.
The chute is arranged on the first sliding block 21, each first clamping block 2 is connected with the chute in a sliding mode, the moving track of each first clamping block 2 is limited, the first clamping blocks 2 do stable motion in the horizontal direction, the cross section of each second clamping block 23 is arranged to be right trapezoid, two second limiting blocks 22 are fixedly connected to the first mounting block 5, a plurality of second limiting grooves are arranged on the first sliding block 21, each second limiting block 22 is connected with the corresponding second limiting groove in a sliding mode, the cross section of each second clamping block 23 is arranged to be right trapezoid, when the inclined surface of each second clamping block 23 is extruded, the second clamping blocks 23 do stable motion in the horizontal direction, two second mounting blocks 17 are fixedly connected to the base 1, the cross section of each second mounting block 17 is arranged in an L shape, a plurality of bolts 18 are connected to the second mounting blocks 17 in a threaded mode, the bolts 18 are symmetrically arranged, the second mounting blocks 17 and the bolts 18 are arranged, and the contact surfaces are convenient to connect and fix the base 1.
According to the device, when the device is required to be used, a plurality of cable bodies 11 to be installed are placed in corresponding first positioning grooves 20 on the base 1 respectively, then acting force is applied to the upper cover 8, under the cooperation of the positioning blocks 10, the positions of the upper cover 8 are straightened, the upper cover 8 and the two baffles 9 slide relatively until the lower surface of the upper cover 8 abuts against the upper surface of the base 1, acting force is applied to the disc 6, the disc 6 rotates to drive the reciprocating screw 24 to rotate, so that the reciprocating screw 24 and the upper cover 8 move relatively, the reciprocating screw 24 moves to drive the transverse plate 25 to move, the transverse plate 25 moves to drive the first sliding block 21 to move, so that the first sliding block 21 and the upper cover 8 slide relatively, the first sliding block 21 moves to drive the plurality of first installation blocks 5 vertically downwards, the first pressing blocks 16 on the first installation blocks 5 contact and press the corresponding cable bodies 11, the vertical rods 14 and the first installation blocks 5 slide relatively, and the second springs deform until the lower surface of the first sliding block 21 abuts against the inner wall of the upper cover 8.
At this time, the first extrusion block 16 compresses the corresponding cable body 11, the elastic force of the second spring can place the first extrusion block 16 and the cable body 11 to be in hard contact, the cable body 11 is damaged, at this time, the transverse plate 25 continues to move downwards, the transverse plate 25 moves to drive the two first extrusion rods 12 to vertically move downwards, the first extrusion rods 12 contact and extrude the extrusion grooves 15 on the corresponding first clamping blocks 2, as the acting force of the first extrusion rods 12 on the first clamping blocks 2 has a component force in the horizontal direction, the two first clamping blocks 2 are far away from each other until the first clamping blocks 2 are clamped with the baffle 9, the first sliding block 21 is fixed, the acting force is applied on the first limiting rod 7, the first limiting rod 7 and the disc 6 slide relatively until the first limiting rod 7 and the first limiting groove are clamped, and the reciprocating screw rod 24 is fixed.
When a certain cable body 11 needs to be replaced due to damage, acting force is applied to the handles 3 on the two corresponding first mounting blocks 5, the handles 3 rotate to drive the second extrusion blocks 4 to move, the second extrusion blocks 4 and the first mounting blocks 5 move relatively, the second extrusion blocks 4 move vertically downwards and do not extrude the two second clamping blocks 23, the two second clamping blocks 23 are mutually far away under the elastic force of the third spring until clamping grooves on the second clamping blocks 23 and the first sliding blocks 21 are separated from the clamping state, vertical upward acting force is applied to the handles 3, the two first mounting blocks 5 and the first sliding blocks 21 slide relatively, and the first mounting blocks 5 move vertically upwards, so that the first extrusion blocks 16 mounted on the first mounting blocks 5 do not extrude the damaged cable body 11.
The action force is applied to the damaged cable body 11, so that the damaged cable body 11 and the first positioning groove 20 slide relatively until the damaged cable body 11 is pulled away, a new cable body 11 is taken in, the first mounting block 5 and the first extrusion block 16 are reset, the cable bodies 11 can be separated and fixed through the mutual matching of the first clamping block 2 and the first extrusion rod 12, the cable bodies 11 with different specifications can be fixed, the installation is very convenient, time and labor are saved, the installation efficiency is improved, and when a certain cable needs to be replaced through the mutual matching of the second extrusion block 4 and the second clamping block 23, the cable body 11 can be replaced independently under the condition that other cable bodies 11 are not influenced, the operation is very simple, and the practicability of the device is improved.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (10)

1. The electric engineering cable protection device comprises a base (1) and is characterized in that an upper cover (8) is arranged on the base (1) in a sliding manner, and a first sliding block (21) is arranged on the upper cover (8) in a sliding manner;
the device comprises a first sliding block (21), a second sliding block (21), a first pressing block (16) and a reciprocating screw rod (24) which are connected with each other in a threaded manner, wherein the first sliding block (21) is provided with a pressing mechanism, each pressing mechanism comprises a plurality of first installation blocks (5) which are arranged in a sliding manner by the first sliding block (21), each first installation block (5) is provided with a vertical rod (14) in a sliding manner, each vertical rod (14) is connected with the first installation block (5) by a second spring, each vertical rod (14) is fixedly connected with the first pressing block (16), two first clamping blocks (2) are arranged on the first sliding block (21) in a sliding manner, the two first clamping blocks (2) are connected by the first spring (13), each first clamping block (2) is provided with a pressing groove (15), each first sliding block (21) is provided with two first pressing rods (12) in a sliding manner, each first pressing rod (12) is fixedly connected with the transverse plate (25), and the reciprocating screw rod (24) is connected with the transverse plate (25) in a threaded manner;
every all be provided with adjustment mechanism on first installation piece (5), adjustment mechanism includes two second fixture blocks (23) of sliding setting on first installation piece (5), every second fixture block (23) all are connected through third spring and first installation piece (5), a plurality of draw-in grooves have been seted up on first slider (21), every second fixture block (23) all with draw-in groove joint, threaded connection has second extrusion piece (4) on first installation piece (5), every second fixture block (23) all with second extrusion piece (4) sliding connection.
2. An electrical engineering cable protection device according to claim 1, wherein the base (1) is provided with a plurality of cable bodies (11), the base (1) and the upper cover (8) are provided with a plurality of first positioning grooves (20), and each cable body (11) is slidably connected with the corresponding first positioning groove (20).
3. An electrical engineering cable protection device according to claim 1, wherein two baffles (9) are fixedly connected to the base (1), each baffle (9) is slidably connected to the upper cover (8), and each first clamping block (2) is clamped with the corresponding baffle (9).
4. An electrical engineering cable protection device according to claim 3, wherein two positioning blocks (10) are fixedly connected to the upper cover (8), a second positioning groove is formed in each baffle (9), and the positioning blocks (10) are slidably connected with the second positioning grooves.
5. The electrical engineering cable protection device according to claim 1, wherein a disc (6) is fixedly connected to the reciprocating screw rod (24), a first limiting rod (7) is slidably connected to the disc (6), a first limiting groove is formed in the upper cover (8), and the first limiting rod (7) is clamped with the first limiting groove.
6. The electrical engineering cable protection device according to claim 1, wherein the upper cover (8) is provided with a plurality of heat dissipation holes (19), and the plurality of heat dissipation holes (19) are equidistantly arranged.
7. An electrical engineering cable protection device according to claim 1, wherein each second extrusion block (4) is fixedly connected with a handle (3), and the handles (3) are provided with anti-skid patterns.
8. An electrical engineering cable protection device as in claim 1, wherein the first slide blocks (21) are provided with sliding grooves, and each first clamping block (2) is slidably connected with the sliding groove.
9. The electrical engineering cable protection device according to claim 1, wherein the cross section of each second clamping block (23) is set to be right trapezoid, two second limiting blocks (22) are fixedly connected to the first mounting block (5), a plurality of second limiting grooves are formed in the first sliding block (21), and each second limiting block (22) is slidably connected with the corresponding second limiting groove.
10. An electrical engineering cable protection device according to claim 1, wherein two second mounting blocks (17) are fixedly connected to the base (1), the cross section of each second mounting block (17) is L-shaped, a plurality of bolts (18) are connected to the second mounting blocks (17) in a threaded manner, and the bolts (18) are symmetrically arranged.
CN202310340611.XA 2023-04-03 2023-04-03 Electrical engineering cable protection device Withdrawn CN116191326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310340611.XA CN116191326A (en) 2023-04-03 2023-04-03 Electrical engineering cable protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310340611.XA CN116191326A (en) 2023-04-03 2023-04-03 Electrical engineering cable protection device

Publications (1)

Publication Number Publication Date
CN116191326A true CN116191326A (en) 2023-05-30

Family

ID=86452279

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310340611.XA Withdrawn CN116191326A (en) 2023-04-03 2023-04-03 Electrical engineering cable protection device

Country Status (1)

Country Link
CN (1) CN116191326A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117335342A (en) * 2023-12-01 2024-01-02 山东力拓智能科技有限公司 Combined wiring device for intelligent elastic positioning type constructional engineering

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117335342A (en) * 2023-12-01 2024-01-02 山东力拓智能科技有限公司 Combined wiring device for intelligent elastic positioning type constructional engineering
CN117335342B (en) * 2023-12-01 2024-03-22 山东力拓智能科技有限公司 Combined wiring device for intelligent elastic positioning type constructional engineering

Similar Documents

Publication Publication Date Title
CN116191326A (en) Electrical engineering cable protection device
CN111181101B (en) Big data transmission cable fixing device
CN211184532U (en) Electrical cabinet
CN206398282U (en) A kind of new recreation facility supervising device
CN214478144U (en) Dustproof device for building construction socket
CN111757618B (en) Portable direct current resistance tester
CN215301248U (en) Graphite product heat conduction device
CN213816881U (en) Novel low-voltage complete switch equipment
CN218940511U (en) Network cable laying device for installing AGC (automatic gain control) or AVC (automatic gain control) equipment
CN216707848U (en) PC window mould fixing device
CN221003481U (en) Anti-drop combined screw
CN210429849U (en) Photovoltaic aluminum product with fin
CN220625012U (en) Heat dissipation area adjustable radiating fin
CN219164166U (en) Multifunctional wire clip for computer network wiring
CN220135286U (en) Radiator fan for car light
CN215258648U (en) Portable multi-functional supervision equipment
CN219145930U (en) Multi-channel communication device capable of being embedded into communication equipment
CN215340112U (en) Intelligent monitoring device for power grid equipment
CN218081584U (en) Machine tool clamp convenient to assemble
CN217563321U (en) Novel anti-falling power lightning protection device
CN216100353U (en) Screw extruder is used in production of EPDM rubber granule
CN213516631U (en) Building material strength detection device
CN214363081U (en) Channel gate mainboard fixing device
CN211702851U (en) Installation mechanism of heat dissipation fan cover of industrial machine
CN213541954U (en) Support device for building electromechanical installation

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20230530