TW201101332A - An apparatus is provided for turning and stabilizing a heavy object such as a tank in dry storage of nuclear fuel - Google Patents

An apparatus is provided for turning and stabilizing a heavy object such as a tank in dry storage of nuclear fuel Download PDF

Info

Publication number
TW201101332A
TW201101332A TW098121386A TW98121386A TW201101332A TW 201101332 A TW201101332 A TW 201101332A TW 098121386 A TW098121386 A TW 098121386A TW 98121386 A TW98121386 A TW 98121386A TW 201101332 A TW201101332 A TW 201101332A
Authority
TW
Taiwan
Prior art keywords
weight
item
reversal
base
frame
Prior art date
Application number
TW098121386A
Other languages
Chinese (zh)
Other versions
TWI384491B (en
Inventor
Chih-Hao Chen
Chen-Yang Liu
Yu-Tang Yang
Ching-Wei Yang
Kuei-Jen Cheng
Original Assignee
Atomic Energy Council
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 Atomic Energy Council filed Critical Atomic Energy Council
Priority to TW098121386A priority Critical patent/TWI384491B/en
Publication of TW201101332A publication Critical patent/TW201101332A/en
Application granted granted Critical
Publication of TWI384491B publication Critical patent/TWI384491B/en

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Landscapes

  • Load-Engaging Elements For Cranes (AREA)

Abstract

An apparatus is provided for turning and stabilizing a heavy object such as a tank in dry storage of nuclear fuel. The apparatus is operated based on spinning of an eccentric arrangement. The apparatus includes a shackle for holding the heavy object, a base, a supporting device for rotationally supporting the shackle on the base, a pulling device for controlling an angle of rotation of the supporting device and the base, and an elevating device for controlling the elevation of the supporting device and the base. The apparatus reliably and efficiently turns the heavy object and stabilizes the heavy object before and after the turning, thus overcoming difficulties that would otherwise be encountered in a limited environment such as a short door.

Description

201101332 六、發明說明: 【發明所屬之技術領域】 本發明係有關於一種用於重物翻轉與穩定之裝置,尤指涉 及一種應用偏心矩所產生之自行轉動之特性組設而成,特別係-指適用於用過核燃料乾式貯存中具備筒槽外型之容器者。 【先前技術】 Ο201101332 VI. Description of the Invention: [Technical Field] The present invention relates to a device for reversing and stabilizing a heavy object, and more particularly to a combination of self-rotating characteristics generated by applying an eccentric moment, in particular - Refers to those containers that have a cylindrical shape in dry storage of used nuclear fuel. [Prior Art] Ο

目前用於重物翻轉之方式,多使用起重機具,直接對重物 本身或其輔助之結構支撐座架進行吊舉翻轉。然而,此種方式 鵷要足夠之作業空間及機具相配合,當重物需移入特定之室内 場所後進行翻轉時’往往受限於固定式起重機具與廠房結構之 荷重旎力、或吊鉤下淨高不足、或因作業空間受限而無法使用 移動式起重機等因素,導致無法制此類被動之翻轉方式。而 現有之自_轉方式’皆係採用強力之液廢機構,對重物進行 主動之頂升翻轉與控制;然而,此種翻轉方式需具備較大之動 力以驅動贿機構’且液壓機構失效時亦具有相當之危險性。 故’一般習用者係 '無法符合使用者於實際使用時之所需。 [發明内容] 本發明之主要目的係在於,克服習知技藝所遭遇之上 ,並提供—種制如矩所產生之自行轉動之特性組設而 成可適用於用過核燃料乾式貯存中具備筒槽外型之容器之裝 置者。 、 本發明之次要目的係在於,提供一種可 限狀況下麵翻魏狀_,並透關單、可靠^力^ 4 201101332 引控制’即可達成重物翻轉之目的’同時亦能於翻轉之前、後 確保重物之穩定安全並達成克服門高之限制者。 為達以上之目的,本發鴨—種用於重物轉與穩定之裝 置’係應用偏心矩所產生之自行轉動之特性組設而成,其至少. 包括-與錄結合之絲、支魏座及可使該重物與該座架得 以翻轉之轉動支承所構成,並搭配一用以控制該重物與該座架 翻,角度之牽颁構,以及—用啸繼重物無座架旋轉中 心面度之頂舉機構’藉以安全地進行重物之運送及蝴作業。At present, it is used for the method of weight reversal, and the crane tool is often used to directly lift and retract the weight itself or its auxiliary structural support frame. However, this method requires sufficient working space and equipment to cooperate. When the heavy object needs to be moved into a specific indoor place and then turned over, it is often limited by the load of the fixed crane and the structure of the plant, or under the hook. Factors such as insufficient net height or the inability to use mobile cranes due to limited working space make it impossible to make such passive flipping methods. The existing self-transfer method uses a powerful liquid waste mechanism to actively lift and control heavy objects. However, this type of turning requires a large amount of power to drive the bribe mechanism and the hydraulic mechanism fails. It is also quite dangerous. Therefore, the 'general learner' cannot meet the needs of the user in actual use. SUMMARY OF THE INVENTION The main object of the present invention is to overcome the problems encountered in the prior art and to provide a self-rotating characteristic such as a moment, which is suitable for use in a dry storage of used nuclear fuel. The device of the container of the trough type. The second object of the present invention is to provide a limited condition under which the wei _ _, and the traversing single, reliable ^ ^ ^ 201101332 引 control 'to achieve the purpose of heavy object flipping ' can also be before flipping After that, ensure the stability and safety of the heavy objects and reach the limit of overcoming the height of the door. In order to achieve the above purpose, the hair duck - a device for transferring and stabilizing heavy objects is composed of the characteristics of self-rotation generated by the application of eccentric moments, at least. a seat and a rotating support capable of inverting the weight and the frame, together with a mechanism for controlling the weight and the frame to be turned over, and an angle-free frame The lifting mechanism of the rotating center is used to safely carry heavy loads and butterflies.

❹ 【實施方式】 。月參閱帛1圖〜第3圖』所示,係分別為本發明一較佳 • 構錢编、本判—較佳實施例之結構侧視示 忍圖及本發明-較佳實施例之結構正視剖面示意圖。如圖所 種胁__與穩定之裝置’本裝置1係應 ^ 生之自行轉動之特性組設耐,其至少包括一與 -重==成支:座12及轉動支承13,且搭配 、高用於田W 構成’並可進一步包含一頂舉機構1 5。可 =3=燃料乾式貯存中具備筒槽外型之容器,藉以安全 地進仃此重物之運送及相關作業。 ίΐΓ 1 1上方係為單邊開口之結構,用於吊抑安裝該重 Γίΐ架11後,藉以束帶或鋼帶使其與該座架nl固結 σ ”中亥座架11之截面係可為幾何形狀。 座架該整繼1之底部’藉—該 該轉動支承13係位於該座架工i與重物組合件重心之 5 201101332 L用:使該重物與該座架11具有一與牽弓I方向相反之轉動 趨勢,备该牽引機構14逐漸鬆開時即自行翻轉至完全直立, 反之’當該牽引機構i 4逐漸絞緊料復 該牵引機構14所牵引之位置係位於該座架工^邊緣 f,可產生較大之力矩吨繼縣i i及該重物之翻 度。 &gt;該頂舉機m 5為用以控制該重物與該座架i以 心南度之裝置,係位於該轉動支幻3兩端點之捕底座 ο 上’可將翻轉之前、後使該座架i工及該重物降至該支樓底座 1 2亡供其穩亦可於翻轉時將該座架i u該重物頂舉於 適當高度供其轉。如是,藉由上述之結構構成—全新用於大 型重物翻轉與穩定之裝置1。 、 〇 上述該座架11無重物結合之方式亦可為他種 該重物吊卻安裝之方式與其固定,例如:該重物本身若具 動支承’即可進-步省略該座架工丄而直接安裝於該頂料 1 5上’該牽引機構14亦可以其他多種方式與該座架工 該重物相接合’並可為人力或小動力之電動機或任何相當之裝 置者;此外,當本發明於省略該頂舉機構工5時亦可達:翻轉 之目的’可於橫躺或直立時藉由底部擋塊使該重物固定即可 當本發明於運科,係·重物吊卸絲_座架。 上’並利用束帶或鋼帶使其與該座架丄丄翻結合;繼之,將 本裝置1連同該重物,-併吊置且固定於運輸車輛上,並將此 運輸車輛料至缺位置顿妨轉。#舫轉時,係利 用該頂舉機構15頂升,並將該牽引機構工4逐漸鬆開,使該 重物將由原本橫躺狀態逐漸翻轉為直立狀態;當此重物完成^ 6 201101332 立之後’該頂舉機構15即縮短,使該重物連同該座架丄工平 穩地=於該支推底^ 2上,藉以完成該重物之翻轉。 當需要將此重物躺平時,係將該頂舉機構丄5頂升,並將 該牽升機構1 4逐漸絞緊,賴重物將由祕直域態逐漸翻- 轉為橫躺狀態;當此錄完絲平之後,制舉機構i 5即縮 &amp;’使該重物連同該座架i丨平穩地坐於該支推底座丄2上, 藉以完成該重物之躺平。 由上述可知’本發明係利用重物之重心與旋轉中心之微量 偏心,使重物本身因偏心矩而具有轉動之趨勢,並於適當之位 置^以牽引控制’由於轉引控雛所需施加之外力相當小, 僅而克服重物之偏心力矩即可,因此使用一小型之牽引絞緊裝 置’如電動機’即可達到省力並可控制其自動翻轉之目的;並 和用了作升降直線運動之頂舉機構,可配合重物於橫躺或 直立之狀‘树將高紐至極敗位置,能大幅提高於重物運送 ,人員需接近進行作業時之安全性,並可克服多數廠房(室内 场所)門高限制’使重物於平躺進行運輸時,或翻轉直立後, 可平穩坐於底部,並藉由支撐底座達到穩定之功能。 练上所述,本發明係一種用於重物翻轉與穩定之裝置,可 有效改善習用之種種缺點,可避免因多種環境受限狀況下重物 翻轉進仃之g難,並透過簡單、可靠且省力之牽引控制,即可 達成重物翻轉之目的,同時亦能於翻轉之前、後確保重物之穩 女王並達成克服門咼之限制,進而使本發明之產生能更進 步更實用、更符合使用者之所須,確已符合創作專利申請之 要件,爰依法提出專利申請。 准以上所述者,僅為本發明之較佳實施例而已,當不能以 201101332 此限$本發明實施之範 型說明書内容所作之簡 專利涵蓋之範圍内。 圍’故’凡依本發明申請專利範圍及新 單的等效變化與修飾,皆應仍屬本發明 【圖式簡單說明】 =,係本㈣—較佳實施狀結構正視示意圖❹ [Embodiment] </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; A schematic view of the section. As shown in the figure __ and the stable device's device 1 system should be self-rotating characteristics set, which includes at least one and - weight == into the branch: seat 12 and rotating support 13, and with High for the field W constitute 'and may further include a jacking mechanism 15 . Yes =3=The container with the shape of the tank in the dry storage of the fuel can safely enter the transportation of the heavy object and related operations. ΐΓ ΐΓ 1 1 is a single-sided opening structure for slinging the ΐ ΐ 11 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , For the geometry, the base of the pedestal 1 borrows - the rotator 13 is located at the center of gravity of the pedestal i and the weight assembly 5 201101332 L: the weight and the pedestal 11 have a The rotation tendency opposite to the direction of the retracting bow I, when the traction mechanism 14 is gradually released, is turned over to the full erect, and vice versa, when the traction mechanism i 4 is gradually tightened, the position of the traction mechanism 14 is located. The turret worker ^ edge f can generate a large torque ton ji ii and the weight of the weight. &gt; The jacking machine m 5 is used to control the weight and the seat i to the south The device is located on the catching base ο on the two ends of the rotating phantom 3, and can be used to reduce the front and rear of the frame and reduce the weight to the base of the branch. When the frame iu is lifted at an appropriate height for rotation, if it is constituted by the above structure - brand new for large The device for inverting and stabilizing the object 1. The above-mentioned frame 11 has no heavy object combination, and the method for attaching the weight to the weight can be fixed thereto, for example, if the weight itself has dynamic support Stepping out of the frame work and directly mounting on the top material 15 'The traction mechanism 14 can also be engaged with the weight of the frame in a variety of other ways' and can be a human or small power motor or Any equivalent device; in addition, when the present invention omits the lifting mechanism 5, it can also be achieved: the purpose of the flipping can be used to fix the weight by the bottom stop when lying or standing upright. Yu Yunke, Department·Heavy object lifting wire _ truss. On 'and use a belt or steel belt to make it with the frame ; flip; then, the device 1 together with the weight, - and hang It is fixed and fixed on the transport vehicle, and the transport vehicle is fed to the missing position. When the vehicle is turned, the lift mechanism 15 is used to lift the lift mechanism, and the traction mechanism 4 is gradually released to make the weight The object will gradually turn from the original lying state to the upright state; when this heavy object is completed ^ 6 201101332 After that, the jacking mechanism 15 is shortened, so that the weight is smoothly completed together with the frame = on the pushing base 2, thereby completing the turning of the weight. When the weight needs to be laid flat, the system The jacking mechanism 丄5 is lifted up, and the lifting mechanism 14 is gradually tightened, and the weight is gradually turned from the secret state to the horizontal position; after the recording is finished, the lifting mechanism i 5 is shrinking &amp; 'putting the weight together with the mount i on the support base 2 to complete the lying of the weight. As can be seen from the above, the present invention utilizes the center of gravity of the weight The slight eccentricity with the center of rotation makes the weight itself have a tendency to rotate due to the eccentric moment, and at the appropriate position ^ to control the traction 'Because the force required for the steering control is relatively small, only the eccentricity of the weight is overcome. The torque can be used, so a small traction and tightening device such as a motor can be used to save labor and control its automatic flipping; and the lifting mechanism used for lifting and reclining can be used to lie on the weight. Or the erect shape of the tree will be high to the extreme position, can greatly improve Heavy objects are transported, personnel need to be close to the safety of the operation, and can overcome the height limit of most factories (indoor places). When the heavy objects are transported in a flat position, or flipped upright, they can sit on the bottom and borrow A stable function is achieved by the support base. As described above, the present invention is a device for reversing and stabilizing a weight, which can effectively improve various disadvantages of the conventional use, and can avoid the difficulty of turning over the weight in a plurality of environmentally restricted conditions, and is simple and reliable. And the labor-saving traction control can achieve the purpose of weight reversal, and at the same time, it can ensure the stability of the weight before and after the reversal and reach the limit of overcoming the threshold, so that the invention can be more progressive, more practical and more In accordance with the requirements of the user, it has indeed met the requirements for the creation of a patent application, and has filed a patent application in accordance with the law. The above is only the preferred embodiment of the present invention, and is not within the scope of the patents of the specification of the present invention. The equivalent changes and modifications of the scope of application of the present invention and the new ones should still belong to the present invention. [Simplified description of the drawings] =, (4) - a schematic diagram of a preferred embodiment structure

較佳實施例之結構側視示意圖 圖係本發明一較佳實施例之結構正視剖面示意圖。 【主要元件符號說明】 用於重物翻轉與穩定之裝置丄 座架1 1 支撐底座12 轉動支承13 牽引機構14 頂舉機構15BRIEF DESCRIPTION OF THE DRAWINGS The structure of the preferred embodiment is a schematic cross-sectional view of a preferred embodiment of the present invention. [Main component symbol description] Device for weight reversal and stabilization 座 Seat frame 1 1 Support base 12 Rotary support 13 Traction mechanism 14 Lifting mechanism 15

Claims (1)

201101332 '七、申請專利範圍: 中 •-種用於重物翻轉與穩定之裝置,係應用偏心 行轉動之特性組設喊,其至純括—與麵結合之座架自 =底座及轉動支H弓丨機構及1舉機構所構成,其 該座架上方縣單邊開σ之結構,崎吊卸安裝該重物 於該座架後’藉以束帶或鋼帶使其與該座架穩固結合; 以固持該座架201101332 'VII. Scope of application for patents: Medium--a device for the reversal and stability of heavy objects, which is characterized by the application of eccentric rotation, and the combination of the brackets and the surface of the frame from the base and the rotating branch H The bow mechanism and the 1-arm mechanism are constructed, and the county has a singular structure on the unilateral side of the pedestal, and the shackle is unloaded and mounted on the cradle to provide a stable combination with the cradle by means of a belt or a steel belt. To hold the mount 該支撐底座係位於該整體裝置之底部,藉σ D, 與該重物得以穩定; a 該轉動支承係位於該座架與重物組合件重心之旁,用以 使該重物與該絲具有-與料方向相反之轉動趨勢,當該 牽引機構逐漸鬆開時即自行翻轉至完全直立,當該牽引ϋ 逐漸絞緊時即復歸為橫躺之狀態; 該牽引機構所牽引之位置係位於該座架近邊緣處,可產 生較大之力矩以控制該座架及該重物之翻轉角度;以及 δ亥頂舉機構為用以控制該重物與該座架旋轉中心高度之 裝置’係餘_動支承兩端點之續底座上,可將翻轉之 前、後使該座架及該重物降至該支樓底座上供其穩定亦可 於翻轉時將該座籴及該重物頂舉於適當高度供其翻轉。 2·依申請專利範圍第1項所述之用於重物翻轉與穩定之裴置, 其中,該座架之截面係可為幾何形狀。 3.依申凊專利範圍第1項所述之用於重物翻轉與穩定之裝置, 其中,該座架與該重物結合之方式亦可為他種型式,視該重 物吊卸安裝之方式與其固定。 4 ·依申睛專利範圍第1項所述之用於重物翻轉與穩定之裝置, 201101332 5 =安=:::搆具上有轉動支承’係可進-步省略該座架 • 2請專利範圍第1項所述之用於重物翻轉與穩定之裝置, 八中,該牽引機構係可為人力或小動力之電動機。 •依申請專鋪圍第1項所述之用於重物轉與穩定之裝置, 其中,該頂舉機構係可進一步省略,當於橫躺或直立時可以 底部擔塊使該重物固定。 Ο 7依申π專利範圍第1項所述之用於重物翻轉與穩定之裝置, 其中’該頂舉機構係可配合該重物於橫躺或直立之狀態時, 將高度降至極低之位置。 8依申凊專利範圍第1項所述之用於重物翻轉與穩定之裝置, 其中’該頂舉機構係可作升降直線運動之裝置。 9·依申請專利範圍第1項所述之用於重物翻轉與穩定之裝置, 其中’本裝置係適用於用過核燃料乾式貯存中具備筒槽外型 之容器。The support base is located at the bottom of the integral device, and is stabilized by the weight σ D; a the rotation support is located beside the center of gravity of the mount and the weight assembly for making the weight and the wire have - a rotation tendency opposite to the direction of the material, when the traction mechanism is gradually released, it is turned over to the full upright position, and when the traction raft is gradually tightened, it is returned to the state of lying horizontally; the position to which the traction mechanism is tow is located Near the edge of the frame, a large torque can be generated to control the flip angle of the mount and the weight; and the delta lifting mechanism is a device for controlling the height of the weight and the center of rotation of the mount _ moving the support on both ends of the base, the front frame and the weight can be lowered to the base of the branch before and after the flip for stability, and the seat and the weight can be lifted when flipping Flip it at an appropriate height. 2. The device for reversing and stabilizing weights according to item 1 of the patent application scope, wherein the cross section of the frame can be geometric. 3. The device for reversing and stabilizing a weight according to the first aspect of the patent application, wherein the combination of the frame and the weight may be of another type, depending on the weight of the lifting and unloading installation. The way is fixed. 4 · The device for weight reversal and stability described in item 1 of the scope of the patent application, 201101332 5 = An =::: There is a rotating support on the structure. The system can be advanced - the step is omitted. The device for weight reversal and stabilization described in the first item of the patent scope, in the eighth, the traction mechanism can be a human or small power motor. • According to the application, the device for weight transfer and stabilization described in item 1 can be further omitted. The jacking mechanism can be further omitted. When lying or standing upright, the bottom weight can be used to fix the weight. Ο 7 The apparatus for weight reversal and stabilization according to item 1 of the patent scope of the invention, wherein the lifting mechanism can reduce the height to an extremely low level when the weight is placed in a horizontally or erect state. position. 8. The apparatus for weight reversal and stabilization according to item 1 of the patent application scope, wherein the jacking mechanism is a device capable of lifting linear motion. 9. The apparatus for weight reversal and stabilization according to item 1 of the patent application scope, wherein the apparatus is suitable for a container having a cylindrical shape in dry storage of used nuclear fuel.
TW098121386A 2009-06-25 2009-06-25 An apparatus is provided for turning and stabilizing a heavy object such as a tank in dry storage of nuclear fuel TWI384491B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW098121386A TWI384491B (en) 2009-06-25 2009-06-25 An apparatus is provided for turning and stabilizing a heavy object such as a tank in dry storage of nuclear fuel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW098121386A TWI384491B (en) 2009-06-25 2009-06-25 An apparatus is provided for turning and stabilizing a heavy object such as a tank in dry storage of nuclear fuel

Publications (2)

Publication Number Publication Date
TW201101332A true TW201101332A (en) 2011-01-01
TWI384491B TWI384491B (en) 2013-02-01

Family

ID=44836988

Family Applications (1)

Application Number Title Priority Date Filing Date
TW098121386A TWI384491B (en) 2009-06-25 2009-06-25 An apparatus is provided for turning and stabilizing a heavy object such as a tank in dry storage of nuclear fuel

Country Status (1)

Country Link
TW (1) TWI384491B (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW372228B (en) * 1996-09-21 1999-10-21 Yuan Kang Turning machine
US6190111B1 (en) * 1998-08-11 2001-02-20 Aetrium Incorporated Tray inverting apparatus and methods

Also Published As

Publication number Publication date
TWI384491B (en) 2013-02-01

Similar Documents

Publication Publication Date Title
CN105523505A (en) Transporting device for logistics boxes
CN106115503B (en) A kind of Mobile crane
JP2006232548A (en) Lifter
CN205953371U (en) Collapsible portable floor truck
CN106241622A (en) Mobile crane
CN205061421U (en) Collapsible hoist device
CN209112219U (en) A kind of Multifunctional oil drum transport cart
TW201101332A (en) An apparatus is provided for turning and stabilizing a heavy object such as a tank in dry storage of nuclear fuel
CN206202074U (en) Vehicle-mounted container handling system
CN114408768A (en) A lifting machine for mechanical engineering
CN213059833U (en) Standard container hoist and mount auxiliary device
CN109019357B (en) Folding lifting hanger
CN206049488U (en) A kind of tank-transport truck
CN206842886U (en) It is a kind of can 90 ° rotation slag bucket turning trolleys
CN206857751U (en) Automatic lifting and dumping device for barreled materials
CN207566766U (en) A kind of collapsible falling-resistant crane boom
CN210734898U (en) Cement conveyer
US20180086612A1 (en) Lift Device for HVAC Unit
JPH08216772A (en) Electric pole transport vehicle
CN214775938U (en) Special transport trolley for pump body
CN216613827U (en) Ship hoisting equipment for cargo handling
JP2008303052A (en) Hanging device of self-propelled vehicle for high lift work
CN211075975U (en) Transport vehicle for passenger liner wharf
CN220723404U (en) Portable hoist device that many topography are suitable for
CN211056038U (en) Building material short-distance lifting and conveying device