CN210901806U - High-strength electrodeless pull rod - Google Patents

High-strength electrodeless pull rod Download PDF

Info

Publication number
CN210901806U
CN210901806U CN201921831842.6U CN201921831842U CN210901806U CN 210901806 U CN210901806 U CN 210901806U CN 201921831842 U CN201921831842 U CN 201921831842U CN 210901806 U CN210901806 U CN 210901806U
Authority
CN
China
Prior art keywords
pull rod
wall
fixed
fixed block
cylinder
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.)
Expired - Fee Related
Application number
CN201921831842.6U
Other languages
Chinese (zh)
Inventor
赵学标
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.)
Jiaxing Zhaofeng Plastic Co ltd
Original Assignee
Jiaxing Zhaofeng Plastic 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 Jiaxing Zhaofeng Plastic Co ltd filed Critical Jiaxing Zhaofeng Plastic Co ltd
Priority to CN201921831842.6U priority Critical patent/CN210901806U/en
Application granted granted Critical
Publication of CN210901806U publication Critical patent/CN210901806U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Holders For Apparel And Elements Relating To Apparel (AREA)

Abstract

The utility model discloses an electrodeless pull rod of high strength belongs to electrodeless pull rod field, the electric iron comprises a cylinder body, the fixed pulley is installed to the inside rotation in cylinder right side, the chain has been cup jointed in the rotation of fixed pulley outer wall, chain outer wall fixed mounting has tooth thorn B, cylinder right side lower extreme outer wall fixed mounting has the fluting, cylinder right side outer wall fixed mounting has the bolt A, bolt A left end runs through fluting fixedly connected with fixed pin A, cylinder left side inner wall fixed mounting has fixed block A, the inside fixed mounting of fixed block A has sliding tray A, the inside movable mounting of sliding tray A has fixed block B. Through setting up embedded fixed knot structure and elastic expansion structure, make the pull rod more stable when being pulled, the pull rod is more firm when highly being fixed of arbitrary needs, has improved the practicality of pull rod.

Description

High-strength electrodeless pull rod
Technical Field
The utility model relates to an electrodeless pull rod technical field especially relates to an electrodeless pull rod of high strength.
Background
The common pull rod has telescopic positioning, for example, three sections are telescopic, each section is fifteen centimeters and is a fixed section, and the stepless pull rod can be fixed without a limiting clamping section and can be fixed at any position, so that the telescopic pull rod is convenient for people with different heights to use.
Patent CN201820652848.6 discloses a high-strength stepless pull rod, which is operated through a gear aiming at the stepless property of the existing pull rod, the gap between tooth blocks of the gear is large, the stepless property cannot be more effectively realized, and the stepless effect is more obvious by installing a rubber block and a conical tube.
The electrodeless pull rod has the following defects: 1. the stability effect of the electrodeless pull rod in the pulling process is poor, after the electrodeless pull rod is pulled for a long time, the pull rod is abraded to cause the direction deviation of the pull rod, the pulling process is blocked, and when the pull rod is withdrawn, the pull rod collides with the bottom, the pull rod is damaged, the loss is caused, and the practicability of the pull rod is reduced. 2. The pull rod is not firm when being fixed, so that the electrodeless effect of the pull rod is not obvious, the loose pull rod can be automatically retracted to prevent the firm support pull rod from being fixed at the required height, and the practicability of the pull rod is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high-strength electrodeless pull rod, which aims to adopt an embedded sliding structure and a rotating structure, when the pull rod needs to be pulled upwards, a pull ring fixedly installed at the upper end of the pull rod is held, the pull ring is pulled upwards, the pull ring drives a lower end pull rod to move upwards in a cylinder body, a tooth thorn A fixedly installed on the outer wall of the right end of the pull rod moves upwards, a tooth thorn B movably installed at the right end is driven to move upwards, the tooth thorn B moves through a fixed pulley to drive a chain rotationally sleeved on the outer wall to rotate, so as to cooperate with the tooth thorn A to rotate upwards, a fixed block B fixedly installed at the left end of the pull rod is driven by a rotating wheel rotationally installed at the left side and the right side to slide in a sliding groove A in the fixed block A and vertically move upwards along the cylinder body, the pull rod is pulled out from the inside of the cylinder body, when the pull rod is withdrawn, the spring A elastic shrinkage of pull rod bottom installation, with the pressure buffering release of pull rod, avoid the collision of pull rod and bottom inner wall, make the life of pull rod increase, increased the practicality of pull rod.
An embedded fixing structure and an elastic telescopic structure are adopted, a pulling bolt B is pulled rightwards firstly, the pulling bolt B moves rightwards to drive a connecting rod fixedly connected with the left end to move rightwards, a sliding block fixedly installed at the left end is driven to move rightwards in a sliding groove B, a fixing pin B at the left end is driven to move rightwards, after a pull rod is pulled upwards to a required height, the pulling bolt A is used for inwards inserting a groove which is aligned with the height of the outer wall of the right end of a cylinder body and is installed, the fixing pin A fixedly connected with the left end of the pulling bolt A is inserted into a gap of a tooth thorn B to fix a chain, then the pulling force on the pulling bolt B is released, the elastic tension of a spring B drives the sliding block to move leftwards in the sliding groove B to drive the fixing pin B fixedly installed at the left end to move leftwards to be in tooth buckling with the tooth thorn A fixedly installed on the outer wall, the practicability of the pull rod is improved.
The utility model provides a specific technical scheme as follows:
the utility model provides a high-strength electrodeless pull rod, which comprises a cylinder body, a fixed pulley is rotatably arranged in the right side of the cylinder body, a chain is sleeved on the outer wall of the fixed pulley in a rotating way, a tooth spine B is fixedly arranged on the outer wall of the lower end of the right side of the cylinder body, a pulling bolt A is fixedly arranged on the outer wall of the right side of the cylinder body, the left end of the pulling bolt A is fixedly connected with a fixed pin A by penetrating and slotting, a fixed block A is fixedly arranged on the inner wall of the left side of the cylinder body, a sliding groove A is fixedly arranged in the fixed block A, a fixed block B is movably arranged in the sliding groove A, a rotating wheel is rotatably arranged on the left side and the right side of the fixed block B, a pull rod is fixedly arranged on the right end of the fixed block B, a spring A is fixedly, cylinder right side upper end outer wall fixed mounting has fixed block C, fixed block C right-hand member outer wall fixed mounting has the tieing B, tieing B left end runs through fixed block C fixedly connected with connecting rod, the fixed spring B that has cup jointed of connecting rod outer wall, the inside fixed mounting of fixed block C has sliding tray B, the connecting rod left end runs through sliding tray B fixedly connected with sliding block, sliding block left end fixed mounting has fixed pin B.
Optionally, the outer wall of the left end of the pull rod is fixedly provided with a fixed block B, and a sliding groove a matched with the fixed block B is fixedly arranged in the fixed block a to form an embedded sliding structure.
Optionally, the outer wall of the chain is fixedly provided with a tooth thorn B, and the outer wall of the right side of the pull rod is fixedly provided with a tooth thorn a matched with the tooth thorn B to form a rotating structure.
Optionally, the outer wall of the lower end of the pull rod is fixedly connected with one end of a spring A, and the other end of the spring A is fixedly connected to the inner wall of the bottom end of the column body to form an elastic telescopic structure.
Optionally, the outer wall of the right end of the sliding block is fixedly connected with one end of a spring B, and the other end of the spring B is fixedly connected to the inner wall of the right side of the sliding groove B to form an elastic telescopic structure.
The utility model has the advantages as follows:
1. the embodiment of the utility model provides a high-strength electrodeless pull rod, through embedded sliding structure and rotating structure, when the pull rod needs to be pulled upwards, hold the pull ring of fixed mounting on the pull rod, pull the pull ring upwards, the pull ring drives the lower extreme pull rod to move upwards in the cylinder, the thorn A of fixed mounting on the outer wall of the right end of the pull rod moves upwards, the thorn B of movable mounting of the right end is driven to move upwards, the thorn B moves through the fixed pulley to drive the chain that the outer wall rotationally sleeves, thereby cooperating with the thorn A to rotate upwards, the fixed block B of fixed mounting at the left end of the pull rod is driven by the runner that is rotationally mounted at the left and right sides to slide in the sliding groove A in the fixed block A, move upwards vertically along the cylinder, be pulled out from the inside of the cylinder, when the pull rod is withdrawn, press the pull ring downwards, the pull ring moves downwards to drive the pull rod to move downwards to, the spring A elastic shrinkage of pull rod bottom installation, with the pressure buffering release of pull rod, avoid the collision of pull rod and bottom inner wall, make the life of pull rod increase, increased the practicality of pull rod.
2. An embedded fixing structure and an elastic telescopic structure are adopted, a pulling bolt B is pulled rightwards firstly, the pulling bolt B moves rightwards to drive a connecting rod fixedly connected with the left end to move rightwards, a sliding block fixedly installed at the left end is driven to move rightwards in a sliding groove B, a fixing pin B at the left end is driven to move rightwards, after a pull rod is pulled upwards to a required height, the pulling bolt A is used for inwards inserting a groove which is aligned with the height of the outer wall of the right end of a cylinder body and is installed, the fixing pin A fixedly connected with the left end of the pulling bolt A is inserted into a gap of a tooth thorn B to fix a chain, then the pulling force on the pulling bolt B is released, the elastic tension of a spring B drives the sliding block to move leftwards in the sliding groove B to drive the fixing pin B fixedly installed at the left end to move leftwards to be in tooth buckling with the tooth thorn A fixedly installed on the outer wall, the practicability of the pull rod is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic front view of a cross-sectional structure of a high-strength electrodeless pull rod according to an embodiment of the present invention;
fig. 2 is a schematic view of a partially enlarged structure a in fig. 1 of a high-strength electrodeless pull rod according to an embodiment of the present invention;
fig. 3 is a schematic view of a partially enlarged structure B in fig. 1 of a high-strength electrodeless pull rod according to an embodiment of the present invention;
fig. 4 is a schematic view of a local overlooking cross-sectional structure of a high-strength electrodeless pull rod according to an embodiment of the present invention.
In the figure: 1. a cylinder; 2. a fixed block A; 3. a dental thorn A; 4. a spring A; 5. a pull rod; 6. a pull ring; 7. a fixed pulley; 8. a chain; 9. a spur B; 10. a fixed block B; 11. a sliding groove A; 12. a rotating wheel; 13. grooving; 14. pulling a bolt A; 15. a fixing pin A; 16. a fixed block C; 17. pulling the bolt B; 18. a sliding groove B; 19. a connecting rod; 20. a slider; 21. a spring B; 22. and fixing the pin B.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
A high-strength stepless pull rod according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 4.
Referring to fig. 1, 2, 3 and 4, an electrodeless pull rod with high strength provided by an embodiment of the present invention includes a cylinder 1, a fixed pulley 7 is rotatably installed inside the right side of the cylinder 1, a chain 8 is rotatably sleeved on the outer wall of the fixed pulley 7, a tooth spine B9 is fixedly installed on the outer wall of the chain 8, a slot 13 is fixedly installed on the outer wall of the lower right side of the cylinder 1, a pull bolt a14 is fixedly installed on the outer wall of the right side of the cylinder 1, a fixed pin a15 is fixedly connected to the left end of the pull bolt a14 through the slot 13, a fixed block a2 is fixedly installed on the inner wall of the left side of the cylinder 1, a sliding groove a11 is fixedly installed inside the fixed block a2, a fixed block B10 is movably installed inside the sliding groove a11, rotating wheels 12 are both installed on the left and right sides of the fixed block B10, a pull rod 5 is fixedly installed on the right end of the fixed block B10, a pull rod 5 is, fixed block C16 is fixedly installed on the outer wall of the upper end of the right side of the column 1, a pulling bolt B17 is fixedly installed on the outer wall of the right end of the fixed block C16, the left end of the pulling bolt B17 penetrates through a fixed block C16 fixedly connected with connecting rod 19, a spring B21 is fixedly sleeved on the outer wall of the connecting rod 19, a sliding groove B18 is fixedly installed inside the fixed block C16, the left end of the connecting rod 19 penetrates through a sliding groove B18 fixedly connected with sliding block 20, and a fixing pin B22 is fixedly installed.
Referring to fig. 1 and 4, a fixed block B10 is fixedly mounted on the outer wall of the left end of the pull rod 5, a sliding groove a11 matched with the fixed block B10 is fixedly mounted inside the fixed block a2 to form an embedded sliding structure, when the pull rod 5 needs to be pulled upwards, the pull ring 6 fixedly mounted on the upper end of the pull rod 5 is held by hand, the pull ring 6 is pulled upwards, the pull ring 6 drives the pull rod 5 at the lower end to move upwards inside the cylinder 1, the spurs A3 fixedly mounted on the outer wall of the right end of the pull rod 5 move upwards, the spurs B9 movably mounted at the right end is driven to move upwards, the spurs B9 move, the fixed pulley 7 drives the chain 8 rotatably sleeved on the outer wall to rotate, so as to cooperate with the spurs A3 to rotate upwards, the rotating wheels 12 rotatably mounted on the left and right sides of the fixed block B10 are driven to slide in the sliding groove a11 inside the fixed block a2, the pull rod 5 is more stable when pulled, the service life of the pull rod 5 is prolonged, and the practicability of the pull rod 5 is improved.
Referring to fig. 1 and 2, the outer wall of the chain 8 is fixedly provided with a tooth thorn B9, the outer wall of the right side of the pull rod 5 is fixedly provided with a tooth thorn A3 matched with the tooth thorn B9, thereby forming a rotating structure, when the pull rod 5 needs to be pulled upwards, the pull ring 6 fixedly arranged at the upper end of the pull rod 5 is held by hand, the pull ring 6 is pulled upwards, the pull ring 6 drives the pull rod 5 at the lower end to move upwards in the cylinder 1, the tooth thorn A3 fixedly arranged at the outer wall of the right end of the pull rod 5 moves upwards, the tooth thorn B9 movably arranged at the right end is driven to move upwards, the tooth thorn B9 moves to drive the chain 8 rotatably sleeved with the outer wall through the fixed pulley 7 to rotate, so as to match the tooth thorn A3 to rotate upwards, the fixed block B10 fixedly arranged at the left end and the right end of the pull rod 5 is driven by the rotating wheels 12 sliding in the sliding groove a11 in the fixed block a2 to move, the service life of the pull rod 5 is prolonged, and the practicability of the pull rod 5 is improved.
Referring to fig. 1, the outer wall of the lower end of the pull rod 5 is fixedly connected with one end of a spring a4, the other end of the spring a4 is fixedly connected to the inner wall of the bottom end of the cylinder 1, so as to form an elastic telescopic structure, when the pull rod 5 is retracted, the pull ring 6 is pressed downwards, the pull ring 6 moves downwards to drive the pull rod 5 to move downwards to the inside of the cylinder 1, when the inner wall of the bottom end of the cylinder 1 is contacted, the spring a4 installed at the bottom end of the pull rod 5 elastically contracts, the pressure of the pull rod 5 is buffered and released, collision between the pull rod 5 and the inner wall of the bottom end is avoided, the service life of the pull rod 5 is prolonged.
Referring to fig. 1 and 3, the outer wall of the right end of the sliding block 20 is fixedly connected with one end of a spring B21, the other end of the spring B21 is fixedly connected with the inner wall of the right side of the sliding groove B18 to form an elastic telescopic structure, the pulling bolt B17 is pulled rightwards, the pulling bolt B17 moves rightwards to drive the connecting rod 19 fixedly connected with the left end to move rightwards, the sliding block 20 fixedly installed at the left end is driven to move rightwards in the sliding groove B18 to drive the fixing pin B22 at the left end to move rightwards, after the pull rod 5 is pulled upwards to adjust to a required height, the pulling bolt a14 is firstly used to align with the slot 13 installed at the height of the outer wall of the right end of the column 1 to insert inwards, the fixing pin 63a 62 fixedly connected with the left end of the pulling bolt a14 is inserted into the gap of the tooth thorn B9 to fix the chain 8, then the pulling force on the pulling bolt B17 is released, the elastic tension of the, with the thorn A3 looks tooth of pull rod 5 right side outer wall fixed mounting detain, accomplish the fixed of pull rod 5, make the fixed of pull rod 5 more stable firm, improved pull rod 5's practicality.
The embodiment of the utility model provides a high-strength stepless pull rod, when need pull rod 5 upwards, hold pull rod 5 upper end fixed mounting's pull ring 6, pull rod 6 upwards pulls pull ring 6, pull ring 6 drives lower extreme pull rod 5 upwards in cylinder 1, pull rod 5 right-hand member outer wall fixed mounting's thorn A3 upwards moves, drive right-hand member movably mounted's thorn B9 upwards moves, thorn B9 moves and drives outer wall rotation muff-coupling chain 8 to rotate through fixed pulley 7, thereby cooperation thorn A3 upwards rotates, pull rod 5 left end fixed mounting's fixed block B10 rotates the runner 12 of installation at the left and right sides and moves under the drive of sliding in fixed block A2 inside sliding tray A11, along cylinder 1 vertical upward movement, from cylinder 1 inside is pulled out, pull bolt B17 to the right first, pull bolt B17 drives left end fixed connection's connecting rod 19 to move to the right, drive left end fixed mounting's sliding block 20 to move to the right in sliding tray B18, the fixing pin B22 at the left end is driven to move rightwards, after the pull rod 5 is pulled upwards to be adjusted to a required height, the pulling bolt A14 is firstly used to be aligned with the slot 13 arranged at the height of the outer wall at the right end of the cylinder 1 and inserted inwards, the fixing pin A15 fixedly connected with the left end of the pulling bolt A14 is inserted into the gap of the tooth thorn B9 to fix the chain 8, then the pulling force on the pulling bolt B17 is released, the elastic tension of the spring B21 drives the sliding block 20 to move leftwards in the sliding groove B18 and drives the fixing pin B22 fixedly arranged at the left end to move leftwards and be in tooth buckle with the tooth thorn A3 fixedly arranged at the outer wall at the right side of the pull rod 5, so as to fix the pull rod 5, when the pull rod 5 is retracted, the pull ring 6 is pressed downwards, the pull ring 6 moves downwards to drive the pull rod 5 to move downwards to the inside the cylinder 1, when the pull rod 5 is contacted with the inner wall at the bottom end, avoid the collision damage of pull rod 5 and bottom inner wall.
It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (5)

1. The utility model provides a high strength electrodeless pull rod, its characterized in that, electrodeless pull rod includes cylinder (1), wherein, cylinder (1) right side inside is rotated and is installed fixed pulley (7), fixed pulley (7) outer wall rotates and has cup jointed chain (8), chain (8) outer wall fixed mounting has tooth thorn B (9), cylinder (1) right side lower extreme outer wall fixed mounting has fluting (13), cylinder (1) right side outer wall fixed mounting has a blind plug A (14), blind plug A (14) left end runs through fluting (13) fixedly connected with fixed pin A (15), cylinder (1) left side inner wall fixed mounting has fixed block A (2), fixed block A (2) inside fixed mounting has sliding tray A (11), sliding tray A (11) inside movable mounting has fixed block B (10), fixed block B (10) the left and right sides all rotates and installs runner (12), a pull rod (5) is fixedly arranged at the right end of the fixed block B (10), a spring A (4) is fixedly arranged at the lower end of the pull rod (5), the outer wall of the right side of the pull rod (5) is fixedly provided with a tooth thorn A (3), the upper end of the pull rod (5) penetrates through the cylinder body (1) and is fixedly provided with a pull ring (6), a fixed block C (16) is fixedly arranged on the outer wall of the upper end of the right side of the column body (1), a pulling bolt B (17) is fixedly arranged on the outer wall of the right end of the fixed block C (16), the left end of the pulling bolt B (17) penetrates through the fixed block C (16) and is fixedly connected with a connecting rod (19), a spring B (21) is fixedly sleeved on the outer wall of the connecting rod (19), a sliding groove B (18) is fixedly arranged in the fixed block C (16), connecting rod (19) left end runs through sliding tray B (18) fixedly connected with sliding block (20), sliding block (20) left end fixed mounting has fixed pin B (22).
2. The high-strength stepless pull rod as claimed in claim 1, wherein a fixed block B (10) is fixedly installed on the outer wall of the left end of the pull rod (5), and a sliding groove A (11) matched with the fixed block B (10) is fixedly installed inside the fixed block A (2) to form an embedded sliding structure.
3. The high-strength electrodeless pull rod as claimed in claim 1, wherein a tooth thorn B (9) is fixedly installed on the outer wall of the chain (8), and a tooth thorn A (3) matched with the tooth thorn B (9) is fixedly installed on the outer wall of the right side of the pull rod (5) to form a rotating structure.
4. The high-strength electrodeless pull rod as claimed in claim 1, wherein the outer wall of the lower end of the pull rod (5) is fixedly connected with one end of a spring A (4), and the other end of the spring A (4) is fixedly connected with the inner wall of the bottom end of the column body (1) to form an elastic telescopic structure.
5. The high-strength stepless pull rod as claimed in claim 1, wherein the outer wall of the right end of the sliding block (20) is fixedly connected with one end of a spring B (21), and the other end of the spring B (21) is fixedly connected with the inner wall of the right side of the sliding groove B (18) to form an elastic telescopic structure.
CN201921831842.6U 2019-10-29 2019-10-29 High-strength electrodeless pull rod Expired - Fee Related CN210901806U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921831842.6U CN210901806U (en) 2019-10-29 2019-10-29 High-strength electrodeless pull rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921831842.6U CN210901806U (en) 2019-10-29 2019-10-29 High-strength electrodeless pull rod

Publications (1)

Publication Number Publication Date
CN210901806U true CN210901806U (en) 2020-07-03

Family

ID=71342740

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921831842.6U Expired - Fee Related CN210901806U (en) 2019-10-29 2019-10-29 High-strength electrodeless pull rod

Country Status (1)

Country Link
CN (1) CN210901806U (en)

Similar Documents

Publication Publication Date Title
CN110270024B (en) Automatic take-up safety belt
CN109510115A (en) A kind of cable laying auxiliary device
CN210827469U (en) Static pressure pile pressing device
CN116131198A (en) Line paying-off pulley
CN210901806U (en) High-strength electrodeless pull rod
CN116191300A (en) Paying-off equipment for hydraulic engineering construction
CN208690862U (en) Cable fixture is used in a kind of charging of new-energy automobile
CN104911800B (en) A kind of color change head and its angle adjustment fixing device
CN107316582B (en) A kind of practical advertisement board structure
CN217807694U (en) Coiling mechanism of elastic cord production usefulness
CN110518492B (en) Highway crossing support frame for power grid construction
CN210041254U (en) Cable supporting device
CN208964495U (en) A kind of pipe boring tower tower apparatus
CN208813176U (en) A kind of hand brake device
CN106952574B (en) A kind of advertisement board structure
CN107879264B (en) Double-reel type vehicle traction system for entertainment
CN207329567U (en) With supporting mobile trolley used of bale splitter
CN213416212U (en) Combined pneumatic triangular rescue frame
CN210716673U (en) Noise monitoring device is used in construction
CN205322721U (en) Help lift positioner of road wheel chair handrail
CN213753794U (en) Laborsaving cable pulls auxiliary device
CN218046409U (en) Telescopic supporting rod for ice and snow sports
CN220197388U (en) Processing table of external screw feeder
CN220747768U (en) Ancient building restoration supporting device
CN219569136U (en) Dedicated anti falling well lid in mouth of a river under municipal administration

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200703

Termination date: 20211029

CF01 Termination of patent right due to non-payment of annual fee