CN220973872U - Compensation device for roller shutter structure - Google Patents

Compensation device for roller shutter structure Download PDF

Info

Publication number
CN220973872U
CN220973872U CN202322885318.XU CN202322885318U CN220973872U CN 220973872 U CN220973872 U CN 220973872U CN 202322885318 U CN202322885318 U CN 202322885318U CN 220973872 U CN220973872 U CN 220973872U
Authority
CN
China
Prior art keywords
compensation
compensating
roller shutter
roller
shutter structure
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
CN202322885318.XU
Other languages
Chinese (zh)
Inventor
胡爱存
秦思远
马鑫华
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.)
Qingdao Hongyuji Track Traffic Equipment Co ltd
Original Assignee
Qingdao Hongyuji Track Traffic Equipment 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 Qingdao Hongyuji Track Traffic Equipment Co ltd filed Critical Qingdao Hongyuji Track Traffic Equipment Co ltd
Priority to CN202322885318.XU priority Critical patent/CN220973872U/en
Application granted granted Critical
Publication of CN220973872U publication Critical patent/CN220973872U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

The utility model relates to the technical field of vehicle window assemblies, in particular to a compensation device for a roller shutter structure. The utility model comprises a winding drum, wherein at least one of the two ends of the winding drum is provided with a compensation mechanism, and at least one end of the winding drum stretches and changes through the compensation mechanism; the inner end of the compensation mechanism is embedded into the winding drum, and the outer end of the compensation mechanism is fixed in position through the assembly part; the winding drum is provided with a winding curtain cloth. According to the utility model, through the compensation mechanism, single-drum curtain cloth replacement is realized, free adjustment is performed according to the specific installation space of the side wall plates, and the risk of dropping the roller shutter is avoided. The compensating device can be assembled and installed in a split mode with the winding drum for transportation and use, is flexible and convenient, and has the advantages of high safety, high stability, simplicity in disassembly and easiness in maintenance.

Description

Compensation device for roller shutter structure
Technical Field
The utility model relates to the technical field of vehicle window assemblies, in particular to a compensation device for a roller shutter structure.
Background
The compensation device for the roller shutter structure is widely used, and in a car window assembly, the compensation device for the roller shutter structure is mostly used for avoiding the problems of easy roller shutter falling, low yield and complicated installation, and mainly plays a role in protection.
For example, chinese patent publication No. CN113153122a discloses an automatic rebound roller shutter mechanism, in which a rotatable roller is sleeved outside a fixed and non-rotatable central shaft through bearings at both ends, so as to realize expansion and contraction of a spring and sliding of a guide sleeve. But this scheme adopts two reel curtain cloth to change, and the reel sliding sleeve can slide and block the support and realize changing cloth function, can not realize single reel curtain cloth and change, and the distance can't freely be adjusted.
Disclosure of utility model
The utility model aims to solve the technical problems that: the utility model provides a compensation arrangement for rolling up curtain structure, through compensation mechanism, realized single reel curtain cloth and changed, according to the concrete installation interval of side wall board carries out the free regulation, avoids the risk that the rolling up curtain dropped.
The technical scheme of the utility model is as follows:
A compensation device for a roller shutter structure comprises a winding drum, wherein at least one of the two ends of the winding drum is provided with a compensation mechanism, and at least one end of the winding drum stretches and contracts through the compensation mechanism; the inner end of the compensation mechanism is embedded into the winding drum, and the outer end of the compensation mechanism is fixed in position through the assembly part; the winding drum is provided with a winding curtain cloth.
The compensation mechanism in the technical scheme mainly comprises a compensation head, a rotary plug, a compensation spring and an opening retainer ring part; the compensation distance of the compensation mechanism is determined by the distance between the positioning block and the rotary plug, the rotary plug and the winding drum are fixed when the compensation mechanism is used, the compensation shaft end stretches deep into the winding drum, the installation block end can be freely telescopic, free adjustment is carried out according to the specific installation distance of the side wall plates, and the risk that the roller shutter falls is avoided.
In some embodiments, one end of the winding drum is fixed in position through a fixing mechanism, the inner end of the fixing mechanism is embedded into the winding drum to be fixed, the outer end of the fixing mechanism is provided with a mounting block, and the mounting block is provided with a threaded hole for fixing the position.
In this technical scheme, through embedding the reel with the inner of fixed establishment and fix, can increase overall structure's stability for fixed establishment is difficult to drop or remove.
In some of these embodiments, the compensation mechanism includes a compensation head including an elongated compensation shaft and a mounting block disposed at an outer end of the compensation shaft; the middle part activity of compensation axle is provided with rotatory end cap, has cup jointed compensation spring on the compensation axle between rotatory end cap and the installation piece, and the inner of compensation axle is provided with the split washer.
In the technical scheme, the exposed design of the mounting block can conveniently connect or detach the compensation mechanism with other parts through fasteners such as screws, so that the mounting and detaching processes are more convenient and quick. The arrangement of the split retainer ring can limit the axial movement range of the compensation shaft, prevent the compensation shaft from falling out of the compensation mechanism, and can be used as a positioning and supporting structure of the rotary plug, so that the stability of the whole structure is improved. The sleeve connection design of the compensation spring can increase the elasticity of the compensation mechanism, so that the compensation mechanism can better absorb and release energy when being subjected to external impact or vibration, and the stability and the safety of the whole structure are improved.
In some of these embodiments, the mounting block is provided with bolts that are attached to the fitting.
In this technical scheme, in order to fix and connect compensating mechanism with other parts, through bolted connection, can increase stability and the reliability of structure, prevent relative movement or vibration between the part. Meanwhile, the installation and the disassembly of the assembly parts are also convenient by the bolt connection, so that the maintenance and the repair work are more convenient and quicker.
In some embodiments, the rotary plug is rotationally fixed at the end part of the winding drum through threads, and a compensation shaft penetrating through the rotary plug moves along the winding drum in a telescopic manner to drive the mounting block to compensate the distance relative to the winding drum.
In the technical scheme, as the compensation shaft between the rotary plug and the installation block is sleeved with the compensation spring, when the winding drum stretches, the compensation shaft can drive the installation block to carry out distance compensation relative to the winding drum. The design can realize that the mounting block can carry out distance compensation when the winding drum stretches out and draws back, thereby ensuring the stability and reliability of the whole structure.
In some embodiments, the rotary plug comprises a columnar plug body, an elastic retainer ring is installed at the end face of the plug body, an O-shaped ring is arranged at the outer edge of the plug body, and a deep groove ball bearing for bearing radial and axial loads is arranged inside the plug body.
In the technical scheme, the plug adopts a columnar design, can be conveniently fixed at the end part of the winding drum through screw thread rotation, and meanwhile, the stability of the structure is also improved. And the end face of the plug body is provided with an elastic retainer ring, so that the sealing performance between the rotary plug and the winding drum can be improved. The outer edge of the plug body is provided with an O-shaped ring, so that the sealing performance between the rotary plug and the winding drum can be further improved. The inside of end cap body is provided with the deep groove ball bearing that bears radial and axial load, can make rotatory end cap more smooth and easy in the rotatory in-process, reduces friction and wearing and tearing, improves overall structure's stability and reliability. Meanwhile, the design of the deep groove ball bearing can also increase the bearing capacity of the whole structure.
In some embodiments, one end of the compensation spring is connected with the mounting block, the other end of the compensation spring is pressed by external force and then abuts against the rotary plug, and the compensation spring is used for playing a restoring force role on the rotary plug.
In this technical scheme, through the restoring force effect of compensation spring, when rotatory end cap received external force compression, compensation spring can be compressed, and after external force got rid of, compensation spring can resume the original state to drive rotatory end cap and resume initial position, can realize rotatory end cap's automatic recovery function.
In some embodiments, the split ring is embedded into an end of the compensation shaft, and the split ring is used for limiting the rotary plug to the compensation shaft between the split ring and the compensation spring.
In the technical scheme, the split ring can provide certain resistance, reduce vibration and swing of the structure, also can prevent the rotary plug from over-rotating or moving, and can enable the rotary plug to reach ideal height and position by adjusting the position of the split ring.
In some embodiments, the upper part of the assembly part is provided with a mounting hole matched with the mounting block and a hanging lug for fixing the position; the lower part of the assembly part is provided with a steel wire rope for fixing the rolling curtain cloth.
In the technical scheme, the assembly parts can be conveniently installed on corresponding equipment or structures by arranging the installation holes matched with the installation blocks at the upper part. Meanwhile, the hanging lugs for fixing the positions can also provide a certain fixing effect, so that the stability of the assembly part is improved; the roller shutter cloth can be conveniently lifted and controlled through the fixation and the operation of the steel wire rope.
In some embodiments, the bottom of the rolling curtain cloth is provided with a bottom edge, and two ends of the bottom edge are matched with the assembly parts through steel wire ropes to drive two sides of the rolling curtain cloth to synchronously act.
In the technical scheme, the lifting and control of the rolling curtain cloth can be conveniently carried out through the fixation and the matching of the steel wire ropes, and the installation, the debugging and the use of equipment can be conveniently carried out.
Compared with the prior art, the utility model has the following beneficial effects:
(1) Through compensation mechanism, realized single reel curtain cloth and changed, freely adjusted according to the concrete installation interval of side wall board, avoided the risk that the roller shutter dropped.
(2) The compensating device can be assembled and installed in a split mode with the winding drum for transportation and use, is flexible and convenient, and has the advantages of high safety, high stability, simplicity in disassembly and easiness in maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic diagram of the structure of the compensating mechanism and the fitting.
Fig. 3 is a schematic structural view of the compensation mechanism.
Fig. 4 is a front view of the compensation mechanism.
Fig. 5 is a cross-sectional view of the compensation mechanism.
Fig. 6 is a schematic structural view of the compensation shaft.
In the figure: 1. a reel; 2. a fixing mechanism; 3. a compensation mechanism; 31. a compensation head; 311. a compensation shaft; 312. a mounting block; 313. a bolt; 32. a compensation spring; 33. rotating the plug; 331. a circlip; 332. an O-ring; 333. deep groove ball bearings; 334. a plug body; 34. a split retainer ring; 4. rolling curtain cloth; 5. fitting parts.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
Example 1
As shown in fig. 1 and 2, the present embodiment provides a compensation device for a roller shutter structure, including a roller 1, at least one of two ends of the roller 1 is provided with a compensation mechanism 3, and at least one end of the roller 1 is telescopically moved by the compensation mechanism 3; the inner end of the compensation mechanism 3 is embedded into the winding drum 1, and the outer end of the compensation mechanism 3 is fixed in position through the assembly part 5; the winding drum 1 is provided with a winding curtain cloth 4.
The compensating mechanism 3 in the technical scheme mainly comprises parts of a compensating head 31, a rotary plug 33, a compensating spring 32 and an opening retainer ring 34; the compensation distance of the compensation mechanism 3 is determined by the distance between the positioning block and the rotary plug 33, the rotary plug 33 and the winding drum 1 are fixed during use, the compensation shaft 311 end stretches deep into the winding drum 1, the mounting block 312 end can freely stretch out and draw back, the free adjustment is carried out according to the specific mounting space of the side wall plate, and the risk that the roller blind falls is avoided.
In some embodiments, one end of the winding drum 1 is fixed by a fixing mechanism 2, the inner end of the fixing mechanism 2 is embedded into the winding drum 1 for fixing, the outer end of the fixing mechanism 2 is provided with a mounting block 312, and the mounting block 312 is provided with a threaded hole for fixing the position.
In this technical scheme, through embedding reel 1 with the inner of fixed establishment 2 and fix, can increase overall structure's stability for fixed establishment 2 is difficult to drop or remove.
As shown in fig. 5 to 6, the compensating mechanism 3 includes a compensating head 31, the compensating head 31 including an elongated compensating shaft 311 and a mounting block 312 provided at an outer end of the compensating shaft 311; the middle part activity of compensation axle 311 is provided with rotatory end cap 33, has cup jointed compensation spring 32 on the compensation axle 311 between rotatory end cap 33 and the installation piece 312, and the inner of compensation axle 311 is provided with split washer 34.
The exposed design of the mounting block 312 can conveniently connect or disconnect the compensating mechanism 3 with other components by fasteners such as screws, thus making the mounting and dismounting process more convenient and quick. The split retainer ring 34 can limit the axial movement range of the compensation shaft 311, prevent the compensation shaft from falling out of the compensation mechanism 3, and can also serve as a positioning and supporting structure of the rotary plug 33, so that the stability of the overall structure is improved. The sleeved design of the compensation spring 32 can increase the elasticity of the compensation mechanism 3, so that the compensation mechanism can better absorb and release energy when being subjected to external impact or vibration, and the stability and the safety of the whole structure are improved.
As shown in fig. 5, the mounting block 312 is provided with a bolt 313 connected to the fitting 5.
In this technical solution, in order to fix and connect the compensation mechanism 3 with other components, the stability and reliability of the structure can be increased by connecting the compensation mechanism with the other components through the bolts 313, and relative movement or vibration between the components can be prevented. Meanwhile, the bolt 313 is connected, so that the assembly part 5 is convenient to install and detach, and maintenance and repair work are more convenient and quicker.
As shown in fig. 3 and 4, the rotary plug 33 is rotatably fixed at the end of the spool 1 by a screw, and the compensation shaft 311 penetrating through the rotary plug 33 extends and contracts along the spool 1 to drive the mounting block 312 to compensate the distance relative to the spool 1.
In this technical scheme, because compensating spring 32 has been cup jointed on the compensating shaft 311 between rotatory end cap 33 and the installation piece 312, when reel 1 stretches out and draws back, compensating shaft 311 can drive installation piece 312 and carry out the distance compensation relative to reel 1. This design allows the mounting block 312 to be distance compensated as the spool 1 expands and contracts, thereby ensuring the stability and reliability of the overall structure.
In some embodiments, the rotary plug 33 comprises a cylindrical plug, the end face of the plug body 334 is provided with a circlip 331, the outer edge of the plug body 334 is provided with an O-ring 332, and the interior of the plug body 334 is provided with a deep groove ball bearing 333 for bearing radial and axial loads.
In the technical scheme, the plug adopts a columnar design, can be conveniently fixed at the end part of the winding drum 1 through screw thread rotation, and meanwhile, the stability of the structure is also improved. The end face of the plug body 334 is provided with a circlip 331, which can increase the sealing performance between the rotary plug 33 and the spool 1. The O-ring 332 is disposed on the outer edge of the plug body 334, so as to further increase the sealing performance between the rotary plug 33 and the spool 1. The deep groove ball bearings 333 bearing radial and axial loads are arranged in the plug body 334, so that the rotary plug 33 can be smoother in the rotation process, friction and abrasion are reduced, and the stability and reliability of the whole structure are improved. Meanwhile, the design of the deep groove ball bearing 333 can also increase the bearing capacity of the whole structure.
As shown in fig. 3 and 4, one end of the compensation spring 32 is connected to the mounting block 312, and the other end of the compensation spring 32 is compressed by an external force and then abuts against the rotary plug 33, and the compensation spring 32 is used for acting a restoring force on the rotary plug 33.
In this technical scheme, through the restoring force effect of compensation spring 32, when rotatory end cap 33 receives external force compression, compensation spring 32 can be compressed, and after external force got rid of, compensation spring 32 can resume the original state to drive rotatory end cap 33 and resume initial position, can realize rotatory end cap 33's automatic recovery function.
As shown in fig. 3 and 4, the split ring 34 is embedded in the end of the compensation shaft 311, and the split ring 34 is used for limiting the rotary plug 33, so that the rotary plug 33 is limited on the compensation shaft 311 between the split ring 34 and the compensation spring 32.
In this technical scheme, the circlip 34 can provide certain resistance, reduces vibration and the swing of structure, also can prevent rotatory end cap 33 excessive rotation or removal, through adjusting the position of circlip 34, can make rotatory end cap 33 reach ideal height and position.
As shown in fig. 3 and 4, the upper part of the assembly part 5 is provided with a mounting hole matched with the mounting block 312 and a hanging lug for fixing the position; the lower part of the fitting part 5 is provided with a steel wire rope for fixing the rolling curtain cloth 4.
In this embodiment, the fitting 5 can be conveniently mounted to a corresponding device or structure by providing mounting holes at the upper portion thereof to be fitted with the mounting blocks 312. Meanwhile, the hanging lugs for fixing the positions can also provide a certain fixing effect, so that the stability of the assembly part 5 is improved; the roller shutter cloth 4 can be conveniently lifted and controlled by the fixation and the operation of the steel wire rope.
In some embodiments, the bottom of the rolling cloth 4 is provided with a bottom edge, and two ends of the bottom edge are matched with the assembly part 5 through steel wire ropes to drive two sides of the rolling cloth 4 to synchronously act.
In the technical scheme, the lifting and control of the rolling curtain cloth 4 can be conveniently carried out through the fixation and the matching of the steel wire ropes, and the installation, the debugging and the use of equipment can be conveniently carried out.
The use process of the above embodiment is as follows:
Taking the compensating device out of the packaging box, and then finishing the assembly of the winding drum 1, the fixing mechanism 2 and the compensating mechanism 3;
The assembly part 5 is fixed on the wallboard through screws, then the fixing mechanism 2 and the compensating mechanism 3 are respectively installed between the assembly part 5, when the distance is not long enough, the compensating mechanism 3 is extended by pulling the compensating mechanism 3, so that the curtain cloth of the single winding drum 1 is replaced, the free adjustment is carried out according to the specific installation interval of the side wall boards, the risk of dropping the roller shutter is avoided, and the installation of the roller shutter main body is completed;
The upper end of the steel wire rope is hung on a spring tensioned by the assembly part 5, the lower end of the steel wire rope penetrates through the bottom edge of the roller shutter cloth 4 and is fixed on a wall, and the whole installation is completed.
Although the present utility model has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present utility model is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present utility model by those skilled in the art without departing from the spirit and scope of the present utility model, and it is intended that all such modifications and substitutions be within the scope of the present utility model/be within the scope of the present utility model as defined by the appended claims. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. The compensation device for the roller shutter structure comprises a roller (1) and is characterized in that at least one of two ends of the roller (1) is provided with a compensation mechanism (3), and at least one end of the roller (1) stretches and changes through the compensation mechanism (3); the inner end of the compensation mechanism (3) is embedded into the winding drum (1), and the outer end of the compensation mechanism (3) is fixed in position through the assembly part (5); the winding drum (1) is provided with a rolling curtain cloth (4).
2. A compensating device for a roller shutter structure according to claim 1, characterized in that one end of the roller (1) is fixed in position by a fixing mechanism (2), the inner end of the fixing mechanism (2) is embedded into the roller (1) for fixing, the outer end of the fixing mechanism (2) is provided with a mounting block (312), and the mounting block (312) is provided with a threaded hole for fixing position.
3. A compensating device for a roller shutter structure according to claim 1, characterized in that the compensating means (3) comprises a compensating head (31), the compensating head (31) comprising an elongated compensating shaft (311) and a mounting block (312) arranged at the outer end of the compensating shaft (311); the middle part activity of compensation axle (311) is provided with rotatory end cap (33), has cup jointed compensation spring (32) on compensation axle (311) between rotatory end cap (33) and installation piece (312), and the inner of compensation axle (311) is provided with split washer (34).
4. A compensating device for a roller shutter structure according to claim 3, characterized in that the mounting block (312) is provided with a bolt (313) connected to the fitting (5).
5. A compensating device for a roller shutter structure according to claim 4, wherein the rotary plug (33) is rotatably fixed at the end of the roller (1) through threads, and a compensating shaft (311) penetrating through the rotary plug (33) stretches along the roller (1) to drive the mounting block (312) to compensate the distance relative to the roller (1).
6. A compensating device for a roller shutter structure according to claim 5, characterized in that the rotary plug (33) comprises a cylindrical plug, a circlip (331) is mounted at the end face of the plug body (334), an O-ring (332) is provided at the outer edge of the plug body (334), and a deep groove ball bearing (333) for bearing radial and axial loads is provided inside the plug body (334).
7. A compensating device for a roller shutter structure according to claim 5, wherein one end of the compensating spring (32) is connected to the mounting block (312), and the other end of the compensating spring (32) abuts against the rotary plug (33) after being compressed by an external force, and the compensating spring (32) is adapted to exert a restoring force on the rotary plug (33).
8. A compensating device for a roller shutter structure according to claim 3, characterized in that the circlip (34) is embedded in the end of the compensating shaft (311), the circlip (34) being adapted to limit the rotary plug (33) on the compensating shaft (311) between the circlip (34) and the compensating spring (32).
9. A compensating device for a roller shutter structure according to claim 1, characterized in that the upper part of the fitting (5) is provided with mounting holes for cooperation with mounting blocks (312), and with a hanger for position fixation; the lower part of the assembly part (5) is provided with a steel wire rope for fixing the rolling curtain cloth (4).
10. A compensating device for a roller shutter structure according to claim 1, characterized in that the bottom of the roller shutter cloth (4) is provided with a bottom edge, and two ends of the bottom edge are matched with the assembly parts (5) through steel wire ropes to drive two sides of the roller shutter cloth (4) to synchronously act.
CN202322885318.XU 2023-10-26 2023-10-26 Compensation device for roller shutter structure Active CN220973872U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322885318.XU CN220973872U (en) 2023-10-26 2023-10-26 Compensation device for roller shutter structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322885318.XU CN220973872U (en) 2023-10-26 2023-10-26 Compensation device for roller shutter structure

Publications (1)

Publication Number Publication Date
CN220973872U true CN220973872U (en) 2024-05-17

Family

ID=91062752

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322885318.XU Active CN220973872U (en) 2023-10-26 2023-10-26 Compensation device for roller shutter structure

Country Status (1)

Country Link
CN (1) CN220973872U (en)

Similar Documents

Publication Publication Date Title
CN220973872U (en) Compensation device for roller shutter structure
CN202321716U (en) Novel anti-collapse support device for uncoiler
CN108977972A (en) A kind of leaser being moved easily
CN110329050A (en) A kind of battery package location adjusting rack
CN115325349B (en) Radial telescopic rotary supporting device for substation camera
CN214889999U (en) Monitoring camera fast-assembling support
CN214222456U (en) Monitoring device for smart home
CN216072616U (en) Adjustable guide rail support structure for passenger elevator
CN219304249U (en) Embedded installation type power distribution cabinet
CN201980668U (en) Rubbing and rotating rolling machine
CN215402499U (en) Novel elevator shock absorber base
CN211831431U (en) Control device for 5G communication power supply management
CN220209694U (en) Switch board convenient to installation
CN110541348A (en) Self-locking type connecting mechanism
CN220857888U (en) Displacement adjusting mechanism of permanent magnet speed regulator
CN220522313U (en) Elastic stopper for anti-theft door
CN214535464U (en) Microorganism aerosol collector support fixing device that stretches out and draws back
CN221224659U (en) Auxiliary frame for detecting TOFD (time of flight diffraction) of pipeline
CN219060834U (en) High-altitude construction safety hanger
CN219796021U (en) Noise reduction type gear box
CN216380947U (en) Manual vaulting pole support of bonnet with rust-resistant function that loses
CN203248131U (en) Rolling type pumping unit guide shoe
CN211870584U (en) Automatic deviation-adjusting type roller device of transplanting type conveyor
CN214798584U (en) High tension cable and electricity tower installation auxiliary device
CN220389405U (en) Sheet metal frame

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant