CN110181613A - Bearizing mechanism is used in a kind of processing of floor - Google Patents
Bearizing mechanism is used in a kind of processing of floor Download PDFInfo
- Publication number
- CN110181613A CN110181613A CN201910573654.6A CN201910573654A CN110181613A CN 110181613 A CN110181613 A CN 110181613A CN 201910573654 A CN201910573654 A CN 201910573654A CN 110181613 A CN110181613 A CN 110181613A
- Authority
- CN
- China
- Prior art keywords
- rotation axis
- shell
- limit
- fixedly connected
- detection resistance
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
- B27C9/00—Multi-purpose machines; Universal machines; Equipment therefor
- B27C9/04—Multi-purpose machines; Universal machines; Equipment therefor with a plurality of working spindles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks
Abstract
The invention discloses a kind of floor processing bearizing mechanisms, are related to floor processing technique field.Floor processing bearizing mechanism, including vertical motor, the output end of the vertical motor is fixedly connected with rotation axis by shaft coupling, the surface of the rotation axis is arranged limited position mechanism, cross motor is connected with by shaft on the position-limit mechanism, the output end of the cross motor is fixedly connected with adjusting screw rod by shaft coupling.Floor processing bearizing mechanism, pass through the improvement of position-limit mechanism and borehole drill construction, and vertical motor, cross motor, adjust being used cooperatively for the components such as bolt and cutting wheel, it carries out carrying out ream operation by the way of the arc cutting of surface again using first drilling, directly cutting bore edges are without gradually increasing aperture, while improving working efficiency, avoid since operation duration is too long, aperture and shape cannot reach use demand caused by user's operation error.
Description
Technical field
The present invention relates to floor processing technique field, bearizing mechanism is used in specially a kind of floor processing.
Background technique
The superficial layer on floor, i.e. house earth surface or flooring, is made by timber or other materials.The classification on floor has very much,
Have by textural classification: solid wooden floor board, reinforced composite wooden floor, three-layer wood composite flooring, bamboo-wood floor, anticorrosive floor board, cork
Floor and at present most popular multi-layer solid wood composite floor etc.;Classification by use has: household is commercially used, antistatic floor, family
Outer floor, the dedicated floor of choreography, in Stadium field dedicated floor, and dedicated floor of track and field etc., floor in process, has
When need using Counterboring apparatus to floor carry out ream operation, bearizing mechanism is one of component part of Counterboring apparatus.
In the prior art, bearizing mechanism carries out ream operation by the way of the cutting of hole inner arc, needs to gradually increase
Aperture is easy to appear since operation duration is too long, hole caused by user's operation error while reducing working efficiency
Diameter and shape cannot reach use demand, and use while increasing operation difficulty to user is made troubles.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, it the present invention provides a kind of floor processing bearizing mechanism, solves in existing skill
In art, bearizing mechanism carries out ream operation by the way of the cutting of hole inner arc, needs to gradually increase aperture, reduces working efficiency
While, it is easy to appear since operation duration is too long, aperture and shape cannot reach caused by user's operation error
The problem of use demand, use while increasing operation difficulty to user is made troubles.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of floor processing bearizing mechanism,
Including vertical motor, the output end of the vertical motor is fixedly connected with rotation axis, the surface of the rotation axis by shaft coupling
It is arranged limited position mechanism, cross motor, the output end of the cross motor is connected with by shaft on the position-limit mechanism
It is fixedly connected with adjusting screw rod by shaft coupling, the surface for adjusting bolt is threaded with cutting wheel, the adjusting bolt
Surface and be located at cutting wheel two sides be threadedly coupled restricted nut, the bottom end of the rotation axis is provided with borehole drill construction.
The position-limit mechanism includes limit shell, and the limit casing is set to the surface of rotation axis, the rotation axis
Surface and the inner cavity for being located at limit shell are fixedly connected with position-limiting tube, and the top and bottom of the limit shell two sides, which are run through, to be set
It is equipped with guide rod, one end that the guide rod is located at limit shell inner cavity is fixedly connected with rubber block, opens up on the position-limiting tube
There is the notch being equipped with rubber block, the rubber block is fixedly connected by forced spring with the inner wall of limit shell, and by
Power ring spring is provided with coil block, the rotation far from the side of rotation axis around the surface for being set to guide rod, the rubber block
The coil plate being equipped with coil block, the two sides of the limit shell inner cavity are provided on axis and positioned at the inner cavity of limit shell
It is provided with ball, and ball is contacted with the surface of position-limiting tube.
The borehole drill construction includes drilling shell, is fixedly connected at the top of the bottom end of the rotation axis and drilling shell, institute
The bottom for stating drilling shell is provided through movable block, and the bottom of the movable block is fixedly connected with drill bit, the drilling shell
The top of inner cavity passes through to be fixedly connected at the top of reset spring and movable block, and brush is provided on the right side of the movable block, described
It is provided with the detection resistance being equipped with brush on the right side of drilling shell inner cavity, is fixedly connected at the top of the detection resistance
Upper collets, the bottom of the detection resistance are provided with lower collets, and the brush is series in the circuit of detection resistance, described
Detection resistance is series in the circuit of vertical motor, and the circuit of the vertical motor and cross motor is parallel with one another.
Preferably, the surface of the rotation axis and be located at position-limit mechanism below be threaded with screwed retaining ring.
Preferably, the magnetic direction that the coil block and coil plate generate after being powered is opposite.
Preferably, the two sides of the rotation axis and be located at limit shell inner cavity be provided with rubber block be equipped with dissipate
Heat channel.
Preferably, metallic rod is provided through on the movable block, the both ends of the metallic rod are interior with drilling shell
Wall is fixedly connected.
Preferably, when brush and detection resistance contact, the circuit of detection resistance is connected, and as brush is relative to detection
Resistance moves up, and the effective resistance value of detection resistance in circuit reduces.
(3) beneficial effect
The present invention provides a kind of floor processing bearizing mechanisms.Have following the utility model has the advantages that the floor processing reaming
Mechanism, by the improvement of position-limit mechanism and borehole drill construction, and vertical motor, cross motor, the adjusting portions such as bolt and cutting wheel
Part is used cooperatively, and carries out carrying out ream operation by the way of the arc cutting of surface again using first drilling, directly cutting bore edges and
Without gradually increasing aperture, while improving working efficiency, user's operation error since operation duration is too long is avoided
Caused by aperture and shape cannot reach use demand, the use for the person of being convenient to use while reducing operation difficulty.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention;
Fig. 2 is the structural schematic diagram of position-limit mechanism of the present invention;
Fig. 3 is the structural schematic diagram of borehole drill construction of the present invention.
In figure: 1, vertical motor;2, rotation axis;3, position-limit mechanism;31, coil plate;32, radiating groove;33, forced spring;
34, position-limiting tube;35, ball;36, guide rod;37, coil block;38, rubber block;39, shell is limited;4, cross motor;5, it adjusts
Bolt;6, cutting wheel;7, nut is limited;8, borehole drill construction;81, metallic rod;82, drill shell;83, movable block;84, bullet is resetted
Spring;85, upper collets;86, detection resistance;87, brush;88, lower collets;89, drill bit;9, screwed retaining ring.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of floor processing bearizing mechanism, including vertical electricity
Machine 1, the output end of vertical motor 1 are fixedly connected with rotation axis 2 by shaft coupling, the two sides of rotation axis 2 and are located at limit shell
39 inner cavity is provided with the radiating groove 32 being equipped with rubber block 38, and radiating groove 32 is used to facilitate the heat dissipation of device, rotation axis 2
Surface and be located at the lower section of position-limit mechanism 3 and be threaded with screwed retaining ring 9, screwed retaining ring 9 is used to limit the position of position-limit mechanism 3
It sets, the surface of rotation axis 2 is arranged limited position mechanism 3, is connected with cross motor 4 by shaft on position-limit mechanism 3, laterally electricity
The output end of machine 4 is fixedly connected with adjusting screw rod 5 by shaft coupling, and the surface for adjusting bolt 5 is threaded with cutting wheel 6, adjusts
It saves the surface of bolt 5 and is threadedly coupled restricted nut 7 positioned at the two sides of cutting wheel 6, the bottom end of rotation axis 2 is provided with drilling
Mechanism 8.
Position-limit mechanism 3 includes limit shell 39, and limit shell 39 is sheathed on the surface of rotation axis 2, the surface of rotation axis 2 and
It is fixedly connected with position-limiting tube 34 positioned at the inner cavity of limit shell 39, the top and bottom of limit 39 two sides of shell are provided through
Guide rod 36, one end that guide rod 36 is located at limit 39 inner cavity of shell are fixedly connected with rubber block 38, offer on position-limiting tube 34
The notch being equipped with rubber block 38, rubber block 38 are fixedly connected by forced spring 33 with the inner wall of limit shell 39, and
Forced spring 33 is provided with coil block 37, line far from the side of rotation axis 2 around the surface for being set to guide rod 36, rubber block 38
The magnetic direction that circle block 37 and coil plate 31 generate after being powered in rotation axis 2 and positioned at the inner cavity of limit shell 39 on the contrary, be arranged
Have a coil plate 31 being equipped with coil block 37, the two sides of limit 39 inner cavity of shell are provided with ball 35, and ball 35 with
The surface of position-limiting tube 34 contacts.
Borehole drill construction 8 includes drilling shell 82, and the bottom end of rotation axis 2 is fixedly connected with the top of drilling shell 82, drills
The bottom of shell 82 is provided through movable block 83, and metallic rod 81 is provided through on movable block 83, and the both ends of metallic rod 81 are equal
It is fixedly connected with the inner wall of drilling shell 82, metallic rod 81 is used to limit the moving range of movable block 83, the bottom of movable block 83
It is fixedly connected with drill bit 89, the top of drilling 82 inner cavity of shell is fixedly connected by reset spring 84 with the top of movable block 83,
The right side of movable block 83 is provided with brush 87, and when brush 87 is contacted with detection resistance 86, the circuit of detection resistance 86 is connected, and
With the moving up relative to detection resistance 86 of brush 87, the effective resistance value of detection resistance 86 in circuit reduces, and drilling is outer
The detection resistance 86 being equipped with brush 87 is provided on the right side of 82 inner cavity of shell, the top of detection resistance 86 is fixedly connected with
Collets 85, the bottom of detection resistance 86 are provided with lower collets 88, and brush 87 is series in the circuit of detection resistance 86, detection
Resistance 86 is series in the circuit of vertical motor 1, and the circuit of vertical motor 1 and cross motor 4 is parallel with one another.
When work, changes position of the cutting wheel 6 relative to cross motor 4 by way of adjusting and limiting nut 7, adjusted with this
The 89 alignment hole heart of drill bit is also turned on the power supply of coil block 37 and coil plate 31 by knothole diameter, so that the two generation is mutually exclusive
Magnetic force, separate rubber block 38 with position-limiting tube 34 so that rotation axis 2 rotate when, laterally
Motor 4 will not be rotated with the rotation of rotation axis 2, controlled vertical motor 1 by the control mechanism of peripheral hardware and rotated, while boring
Carry out drilling operation under the action of holes mechanism 8, (size that the size in hole is greater than drill bit 89 at this time is less than limit after the completion of drilling operation
The size of position shell 39, therefore the level height of cross motor 4 at this time is relatively stable), cut off coil block 37 and coil plate 31
Power supply, while under the action of forced spring 33 cross motor 4 is rotated with the rotation of rotation axis 2, pass through peripheral hardware
Control mechanism controls cross motor 4 and works, to drive cutting wheel 6 to rotate, while vertical by the control of the control mechanism of peripheral hardware
Motor 1 rotates, and carries out surface arc cutting operation with this, a through-hole is cut into, to achieve the effect that reaming.
When drilling operation, as the change brush 87 of pressure is moved up and down relative to detection resistance 86, set when pressure is less than
When definite value, brush 87 is contacted with lower collets 88, and the circuit of vertical motor 1 disconnects at this time, and vertical motor 1, which can not work, (to be bored
Holes mechanism 8 can not rotate), when pressure is located at safe range, brush 87 is relative to detection resistance 86 with the increase of pressure
It moves up, the effective resistance value of detection resistance 86 in circuit reduces, so that the voltage of vertical motor 1 increases, so that boring
The revolving speed of holes mechanism 8 increases, and when pressure reaches dangerous values, brush 87 is contacted with upper collets 85, at this time the electricity of vertical motor 1
Road disconnects, and vertical motor 1 can not work (i.e. borehole drill construction 8 can not rotate), and user can be sentenced by the revolving speed of borehole drill construction 8
Disconnected current pressure situation, carries out protection operation to borehole drill construction 8 with this.
In conclusion floor processing bearizing mechanism, by the improvement of position-limit mechanism 3 and borehole drill construction 8, and it is vertical
Motor 1, cross motor 4 adjust the components such as bolt 5 and cutting wheel 6 and are used cooperatively, and carry out surface arc again using first drilling and cut
The mode cut carries out ream operation, directly cuts bore edges without gradually increasing aperture, while improving working efficiency, avoids
Since operation duration is too long, caused by user's operation error aperture and shape cannot reach use demand, reduce
The use for the person of being convenient to use while operation difficulty.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of floor processing bearizing mechanism, including vertical motor (1), it is characterised in that: the output of the vertical motor (1)
End is fixedly connected with rotation axis (2) by shaft coupling, and the surface of the rotation axis (2) is arranged limited position mechanism (3), the limit
It is connected with cross motor (4) in mechanism (3) by shaft, the output end of the cross motor (4) is fixed by shaft coupling
It is connected with adjusting screw rod (5), the surface for adjusting bolt (5) is threaded with cutting wheel (6), adjusting bolt (5)
Surface and be located at cutting wheel (6) two sides be threadedly coupled restricted nut (7), the bottom end of the rotation axis (2) is provided with brill
Holes mechanism (8);
The position-limit mechanism (3) includes limit shell (39), and limit shell (39) is sheathed on the surface of rotation axis (2), institute
It states the surface of rotation axis (2) and is fixedly connected with position-limiting tube (34) positioned at the inner cavity of limit shell (39), the limit shell
(39) top and bottom of two sides are provided through guide rod (36), and the guide rod (36) is located at limit shell (39) inner cavity
One end be fixedly connected with rubber block (38), the notch being equipped with rubber block (38) is offered on the position-limiting tube (34),
The rubber block (38) is fixedly connected by forced spring (33) with the inner wall of limit shell (39), and forced spring (33) is surround
It is set to the surface of guide rod (36), the rubber block (38) is provided with coil block (37) far from the side of rotation axis (2), described
The coil plate (31) being equipped with coil block (37), institute are provided in rotation axis (2) and positioned at the inner cavity of limit shell (39)
The two sides for stating limit shell (39) inner cavity are provided with ball (35), and ball (35) is contacted with the surface of position-limiting tube (34);
The borehole drill construction (8) includes drilling shell (82), and the bottom end of the rotation axis (2) and the top of drilling shell (82) are solid
The bottom of fixed connection, drilling shell (82) is provided through movable block (83), and the bottom of the movable block (83) is fixed to be connected
It is connected to drill bit (89), the top of described drilling shell (82) inner cavity is fixed by reset spring (84) and the top of movable block (83)
It connects, is provided with brush (87) on the right side of the movable block (83), is provided on the right side of drilling shell (82) inner cavity and electricity
The detection resistance (86) that (87) are equipped with is brushed, is fixedly connected with collets (85), institute at the top of the detection resistance (86)
The bottom for stating detection resistance (86) is provided with lower collets (88), and the brush (87) is series at the circuit of detection resistance (86)
In, the detection resistance (86) is series in the circuit of vertical motor (1), the electricity of the vertical motor (1) and cross motor (4)
Road is parallel with one another.
2. a kind of floor processing bearizing mechanism according to claim 1, it is characterised in that: the table of the rotation axis (2)
Face and be located at position-limit mechanism (3) below be threaded with screwed retaining ring (9).
3. a kind of floor processing bearizing mechanism according to claim 1, it is characterised in that: the coil block (37) and line
The magnetic direction that girth sheets (31) generates after being powered is opposite.
4. a kind of floor processing bearizing mechanism according to claim 1, it is characterised in that: the two of the rotation axis (2)
Side and the radiating groove (32) that the inner cavity for being located at limit shell (39) is provided with and rubber block (38) are equipped with.
5. a kind of floor processing bearizing mechanism according to claim 1, it is characterised in that: passed through on the movable block (83)
It wears and is equipped with metallic rod (81), the both ends of the metallic rod (81) are fixedly connected with the inner wall of drilling shell (82).
6. a kind of floor processing bearizing mechanism according to claim 1, it is characterised in that: when brush (87) and detection electricity
When hindering (86) contact, the circuit of detection resistance (86) is connected, and with brush (87) relative to detection resistance (86) to moving up
Dynamic, the effective resistance value of detection resistance (86) in circuit reduces.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910573654.6A CN110181613A (en) | 2019-06-28 | 2019-06-28 | Bearizing mechanism is used in a kind of processing of floor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910573654.6A CN110181613A (en) | 2019-06-28 | 2019-06-28 | Bearizing mechanism is used in a kind of processing of floor |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110181613A true CN110181613A (en) | 2019-08-30 |
Family
ID=67723975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910573654.6A Pending CN110181613A (en) | 2019-06-28 | 2019-06-28 | Bearizing mechanism is used in a kind of processing of floor |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110181613A (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5553645A (en) * | 1995-03-10 | 1996-09-10 | Castle Tool Machinery, Incorporated | Drilling and counterboring apparatus and method for forming screw pockets |
CN201224128Y (en) * | 2008-07-24 | 2009-04-22 | 永城煤电控股集团有限公司 | Adjustable broach |
CN202367797U (en) * | 2011-11-09 | 2012-08-08 | 亚大塑料制品有限公司 | Drilling tool special for polyethylene pipe |
CN202943689U (en) * | 2012-11-17 | 2013-05-22 | 泰豪科技股份有限公司 | Multifunctional drilling tool |
CN104586466A (en) * | 2015-01-14 | 2015-05-06 | 周升新 | Locating and punching device for orthopedic department |
CN206678195U (en) * | 2017-04-27 | 2017-11-28 | 嵊州市和丰玻璃制品有限公司 | A kind of glass processing units |
CN207695657U (en) * | 2017-11-15 | 2018-08-07 | 上海悦达塞夫纳节能科技有限公司 | A kind of smart home manufacture borehole drill construction |
-
2019
- 2019-06-28 CN CN201910573654.6A patent/CN110181613A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5553645A (en) * | 1995-03-10 | 1996-09-10 | Castle Tool Machinery, Incorporated | Drilling and counterboring apparatus and method for forming screw pockets |
CN201224128Y (en) * | 2008-07-24 | 2009-04-22 | 永城煤电控股集团有限公司 | Adjustable broach |
CN202367797U (en) * | 2011-11-09 | 2012-08-08 | 亚大塑料制品有限公司 | Drilling tool special for polyethylene pipe |
CN202943689U (en) * | 2012-11-17 | 2013-05-22 | 泰豪科技股份有限公司 | Multifunctional drilling tool |
CN104586466A (en) * | 2015-01-14 | 2015-05-06 | 周升新 | Locating and punching device for orthopedic department |
CN206678195U (en) * | 2017-04-27 | 2017-11-28 | 嵊州市和丰玻璃制品有限公司 | A kind of glass processing units |
CN207695657U (en) * | 2017-11-15 | 2018-08-07 | 上海悦达塞夫纳节能科技有限公司 | A kind of smart home manufacture borehole drill construction |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN206732189U (en) | A kind of machine-building drilling machine | |
CN108789875A (en) | A kind of building wall mounting hole is drilled with device | |
CN106426420A (en) | Drill bit accurate positioning structure of vertical drilling machine | |
CN116275159A (en) | Numerical control lathe based on telescopic type rapidly-switchable tool and switching method | |
CN110181613A (en) | Bearizing mechanism is used in a kind of processing of floor | |
CN209698499U (en) | A kind of numerical control drilling machine fixture facilitating installation convenient for adjusting | |
CN208230888U (en) | A kind of intermetallic composite coating drilling machine convenient for adjusting | |
CN100389919C (en) | Portable hand drill | |
CN207900624U (en) | Efficient combination lathe | |
CN211804978U (en) | Special bench drill of drilling processing | |
CN208645614U (en) | Numerical control Tenon machine | |
CN108480679A (en) | Improve the implementation method of energy-saving electric appliance processing efficiency | |
CN213627576U (en) | Drilling equipment for open mine exploitation | |
CN210452956U (en) | High polymer material deep hole processing device | |
CN106563840A (en) | Chamfering drill bit | |
CN108818124B (en) | Drilling machine convenient to use | |
CN206123956U (en) | Agricultural wall body drilling machine | |
CN201669439U (en) | Quickly-positioning drilling device | |
CN206824691U (en) | A kind of Novel radial drilling machine | |
CN205989063U (en) | A kind of boring machine of efficient stable | |
CN206779502U (en) | Aluminium frame splices drilling equipment | |
CN210148329U (en) | Drilling equipment is used in floor production and processing | |
CN217617919U (en) | Electric drill capable of controlling drilling depth | |
CN219665213U (en) | Easily-replaced deep hole drill | |
CN2873375Y (en) | Adjustable hand electric drill head position limiter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190830 |