CN105858420A - Elevator traction device - Google Patents
Elevator traction device Download PDFInfo
- Publication number
- CN105858420A CN105858420A CN201610442614.4A CN201610442614A CN105858420A CN 105858420 A CN105858420 A CN 105858420A CN 201610442614 A CN201610442614 A CN 201610442614A CN 105858420 A CN105858420 A CN 105858420A
- Authority
- CN
- China
- Prior art keywords
- traction steel
- cable
- groove
- directive wheel
- elevator
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
Abstract
The invention discloses an elevator traction device. The elevator traction device comprises a traction machine mounted in an elevator hoistway, a traction steel wire rope and a counterweight block arranged below the traction machine. The elevator traction device is characterized in that an automatic rolling mechanism for rolling the traction steel wire rope until the traction steel wire rope is in a strained state is arranged in the counterweight block, wherein a ring-shaped groove is formed in the outer circumferential wall of a guide wheel; at least three clamping slots which are formed in an internally tangent manner in the radial direction of the guide wheel are formed in the groove bottom of the ring-shaped groove; all clamping slots are uniformly distributed in the circumferential direction of the guide wheel; clamping blocks are arranged in the clamping slots; and the traction steel wire rope abuts against or is separated from the upper end surfaces of the clamping blocks along with the rotation of the guide wheel. According to the elevator traction device provided by the invention, in an elevator maintenance process, a car and the counterweight block can guarantee that the traction steel wire rope does not slip from the guide wheel while not applying acting force to the traction steel wire rope, so that the risk that the traction steel wire rope slips from the guide wheel is avoided.
Description
Technical field
The present invention relates to the technical field of elevator, specifically a kind of elevator drag device.
Background technology
The lifting process of elevator is sequentially to be wound around the drivewheel of traction machine, the directive wheel of car and counterweight by traction steel-cable
Block to roller, thus driven the lifting of car by the frictional force between drivewheel and traction steel-cable.And elevator is as spy
Kind of equipment, the safety direct relation of its inspection use process the life safety of passenger, therefore for elevator reparing and maintenance
Requiring higher, i.e. its frequency safeguarded is high, the parts use cycle is short, and the replacement frequency of consumable accessory is high.And elevator is being safeguarded
During need to lock car and to pouring weight, consequently facilitating the getting loose of traction steel-cable, it is achieved the directive wheel of all parts is entered
Row maintenance or replacing, and in the overhauling elevator of prior art, after its directive wheel overhauls or has changed, described traction steel wire
When rope resets, there is the risk of traction steel-cable and directive wheel dislocation, i.e. traction steel-cable slips in directive wheel, thus makes
Traction steel-cable is stuck with the rotating shaft of directive wheel, or cause the rotating shaft of directive wheel constantly and traction steel-cable friction and cause two
The premature breakdown of person's parts.
Summary of the invention
The technical problem to be solved is: provide a kind of elevator drag device, during its overhauling elevator, car and
Can ensure that traction steel-cable does not gets loose from directive wheel when pouring weight is not applied active force to traction steel-cable, it is to avoid traction
The risk that steel wire rope gets loose from directive wheel.
The technical solution used in the present invention is: providing a kind of elevator drag device, it includes that be installed in elevator hoistways drags
Draw machine, traction steel-cable and be located at below traction machine to pouring weight, it is characterised in that: one end of traction steel-cable and elevator
The inwall in road is fixed, and the other end of traction steel-cable is along its length direction sequentially around directive wheel and the traction machine of cage bottom
On drivewheel, and fix with to pouring weight, described to being provided with in pouring weight for furling traction steel-cable at traction steel-cable
Automatic winding mechanism in tight state.The outer circle wall of described directive wheel is provided with and is surrounded on directive wheel for traction steel-cable
Annular groove, the bottom land position of annular groove be provided with at least three along directive wheel radial direction inscribe formed draw-in groove, all block
Groove is uniformly distributed along the circumference of directive wheel, is provided with fixture block in described draw-in groove, and fixture block is removable with draw-in groove to be connected, when fixture block is installed
Time in draw-in groove, described fixture block deviates from the upper surface of directive wheel axis to be placed on draw-in groove outer and be positioned at annular groove, described traction
Steel wire rope along with the rotation of directive wheel and the upper surface of fixture block against or disengage.The elevator of prior art is in maintenance process, past
Toward needing to lock one step ahead pouring weight and car, and in directive wheel Renewal process, pouring weight will manually be sling one section by needs
Highly, consequently facilitating getting loose of traction steel-cable 2, reach to change the purpose of directive wheel, it is impossible to find out, need during this
Manually sling to pouring weight, operation inconvenience, and there is potential safety hazard, and the present invention is designed by the card block structure on directive wheel,
It is when directive wheel changed by needs, it is only necessary to extract fixture block, and rotary caster can make traction steel-cable relax, and completes to lead
Replacing to wheel, it is not necessary to manual pull-up is to pouring weight, therefore during overhauling elevator, can be the most locked to pouring weight, and
Avoid the risk that pouring weight is fallen, increase the safety of maintainer.Its operating process is in simple terms: to pouring weight and car
Locked, extract the fixture block of directive wheel, complete the replacing of directive wheel, after automatic winding mechanism makes to extract fixture block in the process
Traction steel-cable pretension is on directive wheel, thus prevents traction steel-cable lax and cause the de-of traction steel-cable and other trains
From, it is to avoid there is the fault of traction steel-cable and train dislocation.
Described to being provided with cavity in pouring weight, the top of pouring weight is provided with the upper opening supplying traction steel-cable to penetrate cavity, cavity
Bottom be provided with connection seat, one end of traction steel-cable is fixed with being connected seat, described automatic winding mechanism be installed in cavity and
Position between upper opening and connection seat.
Described automatic winding mechanism includes a spiral rod, and the two ends of spiral rod are rotatably assorted with the inwall of cavity, spiral rod edge
Axial centre position is provided with the radial direction through hole for traction steel-cable break-through, is provided with between end and the inwall of cavity of spiral rod
For the torsion spring driving spiral rod to rotate, traction steel-cable furls on the outer circle wall of spiral rod when rotating with spiral rod, when
Car and time pouring weight is not applied active force to traction steel-cable described torsion spring drive spiral rod to turn to traction steel-cable and be in
Tight state.
On the lateral wall of described spiral rod, two close end position is respectively equipped with the flange radially towards outer lug, the nearly spiral of described flange
The end face in rod centre position is provided with the conical surface of an evagination, the two ends corresponding to the bus of the conical surface respectively with the lateral wall of spiral rod
End face transition with flange connects.
The two close end position, lateral wall of described spiral rod is respectively equipped with the flange radially towards outer lug, is provided with between two flanges
The annular ring corresponding with respective flange, annular ring is placed on spiral rod, and described flange is provided with for each self-corresponding annular
The cannelure that circle embeds, annular ring is limited in vertically in cannelure, is forwarded by plane axis between annular ring and flange
Dynamic cooperation.
Described cavity longitudinal section vertically be shaped as a truncated cone-shaped, the described bottom to pouring weight is provided with for automatic winding
Mechanism loads the lower openings of cavity.
Described connection seat is provided with the taper surface leant with cavity medial wall.
The groove width of described draw-in groove is the most linearly successively decreased along the radial direction of directive wheel from outward, and the upper surface of described fixture block is along guiding
The cambered outwards arc surface in footpath of wheel.
Referring to be connected removable with draw-in groove of described fixture block, the groove inwall of draw-in groove embeds some permanent magnets, and described fixture block is
Magnetic material is made.
After using above structure, first a kind of elevator drag device of the present invention compared with prior art has the advantage that,
When overhauling elevator locked to pouring weight and car and not to traction steel-cable produce active force time, make traction steel by pre-tightening mechanism
Cord fits on the directive wheel of each parts all the time, it is to avoid the risk that traction steel-cable slips from directive wheel, secondly, and behaviour
Make the pretension having only to pull traction steel-cable can overcome pre-tightening mechanism when local directive wheel is replaced or keeps in repair by personnel
Power, it is achieved the locally replacing of directive wheel, it is easy to operate, finally, by arranging second pair of pouring weight, can improve elevator liter
The stationarity of fall process.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of elevator drag device of the present invention.
Fig. 2 is the structural representation to pouring weight part of the present invention.
Fig. 3 is the close-up schematic view in " A " region in Fig. 2.
Fig. 4 is the close-up schematic view of the another kind of structure in " A " region in Fig. 2.
Fig. 5 is the structural representation of the directive wheel part of the present invention.
Fig. 6 is the cross-sectional schematic in " B-B " direction in Fig. 5.
Wherein, 1, traction machine, 1.1, drivewheel, 2, traction steel-cable, 3, to pouring weight, 3.1, cavity, 3.2, top
Opening, 4, car, 4.1, directive wheel, 4.1.1, annular groove, 4.1.2, draw-in groove, 5, automatic winding mechanism, 6, even
Joint chair, 6.1, taper surface, 7, spiral rod, 7.1, radial direction through hole, 7.2, flange, 7.3, the conical surface, 8, torsion spring, 9,
Annular ring, 10, plane bearing, 11, lift car rope head plate, 12, fixture block, 12.1, upper surface, 13, permanent magnet.
Detailed description of the invention
The invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.
The present invention provides a kind of elevator drag device, and it includes traction machine 1, the traction steel-cable 2 being installed in elevator hoistways
Be located at below traction machine 1 to pouring weight 3, it is characterised in that: one end of traction steel-cable 2 and the inwall of elevator hoistways are solid
Fixed, the other end of traction steel-cable 2 is along the directive wheel 4.1 bottom its length direction sequentially cincture car 4 and traction machine 1
On drivewheel 1.1, and fix with to pouring weight 3, described to being provided with in pouring weight 3 for furling traction steel-cable 2 to draging
Draw steel wire rope 1 and be in the automatic winding mechanism 5 of tight state.The outer circle wall of described directive wheel 4.1 is provided with for traction steel
Cord 2 is surrounded on the bottom land position of the annular groove 4.1.1 on directive wheel 4.1, annular groove 4.1.1 and is provided with at least three edge
Draw-in groove 4.1.2, whole draw-in groove 4.1.2 that the radial direction inscribe of directive wheel 4.1 is formed are uniformly distributed along the circumference of directive wheel 4.1, institute
Being provided with fixture block 12 in stating draw-in groove 4.1.2, fixture block 12 is removable with draw-in groove 4.1.2 to be connected, when fixture block 12 is installed on draw-in groove 4.1.2
Time interior, described fixture block 12 deviates from the upper surface 12.1 of directive wheel 4.1 axis to be placed on draw-in groove 4.1.2 outer and be positioned at annular groove
4.1.1 in, described traction steel-cable 2 along with the rotation of directive wheel 4.1 and the upper surface 12.1 of fixture block 12 against or disengage.
As preferably, one end of traction steel-cable 2 is fixed with lift car rope head plate 11, lift car rope head plate 11 and elevator hoistways
Inwall is fixed.
Described to being provided with cavity 3.1 in pouring weight 3, the top of pouring weight 3 is provided with and penetrates the upper of cavity 3.1 for traction steel-cable 2
Portion's opening 3.2, the bottom of cavity 3.1 is provided with connection seat 6, one end of traction steel-cable 2 with to be connected seat 6 fixing, described oneself
Position in dynamic winding mechanism 5 is installed on cavity 3.1 and between upper opening 3.2 and connection seat 6.
Described automatic winding mechanism 5 includes a spiral rod 7, and the two ends of spiral rod 7 are rotatably assorted with the inwall of cavity 3.1,
Spiral rod 7 centre position vertically is provided with the radial direction through hole 7.1 for traction steel-cable 2 break-through, the end of spiral rod 7 with
Being provided with the torsion spring 8 for driving spiral rod 7 to rotate between the inwall of cavity 3.1, traction steel-cable 2 rotates with spiral rod 7
In time, furl on the outer circle wall of spiral rod 7, when car 4 with traction steel-cable 2 is not applied active force time institute by pouring weight 3
State torsion spring 8 to drive spiral rod 7 to turn to traction steel-cable 2 to be in tight state.
On the lateral wall of described spiral rod 7, two close end position is respectively equipped with the flange 7.2 radially towards outer lug, described flange
The end face in 7.2 nearly spiral rod 7 centre positions is provided with the conical surface 7.3 of an evagination, and the two ends corresponding to the bus of the conical surface 7.3 are divided
It is not connected with the lateral wall of spiral rod 7 and the end face transition of flange 7.2.
The two close end position, lateral wall of described spiral rod 7 is respectively equipped with the flange 7.2 radially towards outer lug, two flanges 7.2
Between be provided with the annular ring 9 corresponding with respective flange 7.2, annular ring 9 is placed on spiral rod 7, on described flange 7.2
Being provided with the cannelure embedded for each self-corresponding annular ring 9, annular ring 9 is limited in cannelure vertically, annular ring
It is rotatably assorted by plane bearing 10 between 9 and flange 7.2.
Described cavity 3.1 longitudinal section vertically be shaped as a truncated cone-shaped, the described bottom to pouring weight 3 is provided with and is provided from
Dynamic winding mechanism 5 loads the lower openings of cavity 3.1.
Described connection seat 6 is provided with the taper surface 6.1 leant with cavity 3.1 medial wall.
The groove width of described draw-in groove 4.1.2 is the most linearly successively decreased along the radial direction of directive wheel 4.1 from outward, and described fixture block 12 is upper
End face 12.1 is the cambered outwards arc surface in footpath along directive wheel 4.1.
Be connected removable with draw-in groove 4.1.2 of described fixture block 12 refers to, the groove inwall of draw-in groove 4.1.2 embeds some permanent magnets
13, described fixture block 12 is made for magnetic material.Fixture block 12 and permanent magnet 13 adhesive.As preferably, described fixture block 12
Including pellet and matrix, pellet is that magnetic material is made, and described pellet embeds and in matrix.
The operation principle of its overhauling elevator process is:
First, locked car, orders about pouring weight the most up by chain block, makes car and to pouring weight no longer to traction steel
Cord produces active force, consequently facilitating the getting loose of traction steel-cable, in the process, pre-tightening mechanism works, and orders about traction steel
Cord is close on each directive wheel by less pretightning force, and secondly, operator carry out maintenance repair, when needs are carried out
When locally directive wheel is changed, less pretightning force that traction steel-cable overcomes pre-tightening mechanism to provide first is pulled to make traction steel-cable
The part of the nearly directive wheel needing maintenance gets loose with directive wheel, then completes the replacing of directive wheel, then is around in by traction steel-cable
On new directive wheel, finally reset car and pouring weight is completed maintenance.In the process, the pretightning force that pre-tightening mechanism provides is only
It is only that the gravity overcoming traction steel-cable self, so pretightning force is less, is pulled by manpower and can make traction steel wire
The local of rope departs from directive wheel.Can certainly complete by manual labor-saving tool, such as chain block, lever etc..
Above preferred embodiment of the present invention is described, but is not to be construed as limitations on claims.The present invention is not
Be limited only to above example, its concrete structure allows to change, and all is made in the protection domain of demand for independence of the present invention
Various changes are the most within the scope of the present invention.
Claims (9)
1. an elevator drag device, traction machine (1) that it includes being installed in elevator hoistways, traction steel-cable (2) and
Be located at traction machine (1) lower section to pouring weight (3), it is characterised in that: one end of traction steel-cable (2) and elevator hoistways
Inwall is fixed, and the other end of traction steel-cable (2) is along its length direction sequentially around the directive wheel (4.1) of car (4) bottom
With the drivewheel (1.1) on traction machine (1), and fix with to pouring weight (3), described to be provided with in pouring weight (3) for
Retracting traction steel-cable (2) is in the automatic winding mechanism (5) of tight state, described directive wheel to traction steel-cable (1)
(4.1) outer circle wall is provided with the annular groove (4.1.1) being surrounded on directive wheel (4.1) for traction steel-cable (2),
The bottom land position of annular groove (4.1.1) is provided with at least three draw-in groove (4.1.2) along the radial direction inscribe formation of directive wheel (4.1),
All draw-in groove (4.1.2) is uniformly distributed along the circumference of directive wheel (4.1), is provided with fixture block (12) in described draw-in groove (4.1.2),
Fixture block (12) is removable with draw-in groove (4.1.2) to be connected, the described fixture block when fixture block (12) is installed in draw-in groove (4.1.2)
(12) deviate from the upper surface (12.1) of directive wheel (4.1) axis to be placed on draw-in groove (4.1.2) and outward and be positioned at annular groove (4.1.1)
In, described traction steel-cable (2) along with the rotation of directive wheel (4.1) and the upper surface (12.1) of fixture block (12) against
Or disengage.
A kind of elevator drag device the most according to claim 1, it is characterised in that: described it is provided with in pouring weight (3)
Cavity (3.1), is provided with, to the top of pouring weight (3), the upper opening (3.2) supplying traction steel-cable (2) to penetrate cavity (3.1),
The bottom of cavity (3.1) is provided with connection seat (6), one end of traction steel-cable (2) with to be connected seat (6) fixing, described oneself
Move in winding mechanism (5) is installed on cavity (3.1) and be positioned at upper opening (3.2) and the position connected between seat (6).
3. a kind of elevator drag device stated according to claim 2, it is characterised in that: described automatic winding mechanism (5)
Including a spiral rod (7), the two ends of spiral rod (7) are rotatably assorted with the inwall of cavity (3.1), and spiral rod (7) is along axle
To centre position be provided with the radial direction through hole (7.1) for traction steel-cable (2) break-through, the end of spiral rod (7) and cavity
(3.1) being provided with the torsion spring (8) for driving spiral rod (7) to rotate between inwall, traction steel-cable (2) is with spiral rod
(7) rotate time furl on the outer circle wall of spiral rod (7), when car (4) and to pouring weight (3) not to traction steel wire
When rope (2) applies active force, described torsion spring (8) drives spiral rod (7) to turn to traction steel-cable (2) and is in tight shape
State.
A kind of elevator drag device the most according to claim 3, it is characterised in that: the outside of described spiral rod (7)
On wall, two close end position is respectively equipped with the flange (7.2) radially towards outer lug, the nearly spiral rod (7) of described flange (7.2)
The end face in centre position is provided with the conical surface (7.3) of an evagination, the two ends corresponding to bus of the conical surface (7.3) respectively with spiral
The lateral wall of rod (7) and the end face transition of flange (7.2) connect.
A kind of elevator drag device the most according to claim 3, it is characterised in that: the outside of described spiral rod (7)
Wall two close end position is respectively equipped with the flange (7.2) radially towards outer lug, is provided with respective between two flanges (7.2)
The annular ring (9) that flange (7.2) is corresponding, annular ring (9) is placed on spiral rod (7), on described flange (7.2)
Being provided with the cannelure embedded for each self-corresponding annular ring (9), annular ring (9) is limited in cannelure vertically, described
It is rotatably assorted by plane bearing (10) between annular ring (9) and flange (7.2).
A kind of elevator drag device the most according to claim 1, it is characterised in that: described cavity (3.1) is along vertically
The longitudinal section in direction be shaped as a truncated cone-shaped, the described bottom to pouring weight (3) be provided with for automatic winding mechanism (5) load
The lower openings of cavity (3.1).
A kind of elevator drag device the most according to claim 6, it is characterised in that: described connection seat (6) is provided with
The taper surface (6.1) leant with cavity (3.1) medial wall.
A kind of elevator drag device the most according to claim 1, it is characterised in that: the groove of described draw-in groove (4.1.2)
The wide radial direction along directive wheel (4.1) is the most linearly successively decreased from outward, and the upper surface (12.1) of described fixture block (12) is edge
The cambered outwards arc surface in footpath of directive wheel (4.1).
A kind of elevator drag device the most according to claim 8, it is characterised in that: described fixture block (12) and card
Groove (4.1.2) removable connection refers to, the groove inwall of draw-in groove (4.1.2) embeds some permanent magnets (13), described card
Block (12) is that magnetic material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610442614.4A CN105858420B (en) | 2016-06-17 | 2016-06-17 | A kind of elevator drag device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610442614.4A CN105858420B (en) | 2016-06-17 | 2016-06-17 | A kind of elevator drag device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105858420A true CN105858420A (en) | 2016-08-17 |
| CN105858420B CN105858420B (en) | 2017-12-29 |
Family
ID=56649781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610442614.4A Active CN105858420B (en) | 2016-06-17 | 2016-06-17 | A kind of elevator drag device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105858420B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109626180A (en) * | 2018-12-12 | 2019-04-16 | 宁津汇丰消声器有限公司 | A kind of elevator floor direction board |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979302A (en) * | 2010-10-27 | 2011-02-23 | 曹锦泉 | Variable counterweight elevator and variable counterweight hydraulic elevator |
| CN201808995U (en) * | 2010-08-25 | 2011-04-27 | 莫汉润 | Lift device with adjustable counterweight |
| CN102892702A (en) * | 2010-03-11 | 2013-01-23 | 通力股份公司 | Method for manufacturing or modernizing a traction sheave elevator, and traction sheave elevator |
| CN104355211A (en) * | 2014-10-30 | 2015-02-18 | 王洋 | Balance weight body with self-tensioning effect |
| CN204549762U (en) * | 2015-04-14 | 2015-08-12 | 赵忠义 | Two host driven elevator |
-
2016
- 2016-06-17 CN CN201610442614.4A patent/CN105858420B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102892702A (en) * | 2010-03-11 | 2013-01-23 | 通力股份公司 | Method for manufacturing or modernizing a traction sheave elevator, and traction sheave elevator |
| CN201808995U (en) * | 2010-08-25 | 2011-04-27 | 莫汉润 | Lift device with adjustable counterweight |
| CN101979302A (en) * | 2010-10-27 | 2011-02-23 | 曹锦泉 | Variable counterweight elevator and variable counterweight hydraulic elevator |
| CN104355211A (en) * | 2014-10-30 | 2015-02-18 | 王洋 | Balance weight body with self-tensioning effect |
| CN204549762U (en) * | 2015-04-14 | 2015-08-12 | 赵忠义 | Two host driven elevator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109626180A (en) * | 2018-12-12 | 2019-04-16 | 宁津汇丰消声器有限公司 | A kind of elevator floor direction board |
| CN109626180B (en) * | 2018-12-12 | 2020-06-12 | 浙江鲸叹科技有限公司 | Elevator floor sign |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105858420B (en) | 2017-12-29 |
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Effective date of registration: 20190806 Address after: 324000 No. 1 Panlong West Road, Donggang, Quzhou City, Zhejiang Province Patentee after: Quzhou Wanlong Machinery Manufacturing Co., Ltd. Address before: 324000 Times Town, Southeast Quzhou City, Zhejiang Province, 3 834 Rooms Patentee before: Zhejiang Zhengtong Science and Technology Consulting Co., Ltd. |
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