CN218740003U - Folding type fire hose trailer frame - Google Patents
Folding type fire hose trailer frame Download PDFInfo
- Publication number
- CN218740003U CN218740003U CN202221933512.XU CN202221933512U CN218740003U CN 218740003 U CN218740003 U CN 218740003U CN 202221933512 U CN202221933512 U CN 202221933512U CN 218740003 U CN218740003 U CN 218740003U
- Authority
- CN
- China
- Prior art keywords
- frame
- pull
- pull rod
- frame beam
- fire hose
- 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
Links
Images
Abstract
The utility model provides a folding type fire hose trailer frame, including pull rod, frame and wheel group, the frame includes frame roof beam and frame pillar, frame pillar upper end support frame roof beam, the frame roof beam is the U style of calligraphy in the horizontal direction, can dismantle the installation fire hose spool at the opening of U style of calligraphy, frame roof beam rotates in U style of calligraphy open end both sides and installs a book installation arm, it reserves the mounting groove to roll over a book installation arm in one side towards the frame roof beam near the frame roof beam, and the tip of chucking fire hose spool is in the mounting groove when rolling over a book installation arm upset and pushing down, the wheel group is installed to frame pillar lower extreme; the frame beam is provided with a frame beam upper mounting section and a frame beam lower mounting section in the vertical direction, the frame beam upper mounting section is detachably fixed with a pull rod, and the frame beam lower mounting section is hinged with the pull rod. The utility model discloses a folded form fire hose trailer frame pulls the heavy, bulky fire hose trailer of weight steadily, realizes that pull rod and bottom bracket are folding to be accomodate.
Description
Technical Field
The utility model belongs to the fire-fighting apparatus, concretely relates to folded form fire hose trailer frame.
Background
At present, fire hoses are hoses used to transport fire-retardant liquids such as high-pressure water or foam. The traditional fire hose takes rubber as a lining, and the outer surface of the traditional fire hose is wrapped by linen braided fabric. The advanced fire hose is made of polyurethane and other polymer materials. The two ends of the fire hose are provided with metal joints, and the fire hose can be connected with another hose to prolong the distance or connected with a nozzle to increase the liquid injection pressure. Currently, a fire hose is generally specified to be 20 meters in length and is generally disposed in a coiled form inside an equipment box. The fire fighter when taking, need the very first time to open the equipment case, takes out the fire hose of whole book, then carries the fire hose that coils to appointed position, lays the interface connection fire hydrant of back one end or outdoor fire hydrant, and the squirt is connected to the other end, carries out the fire extinguishing rapidly. The hosepipe can be laid fast, the efficient, and the speed of action is put out a fire in the direct influence, and simultaneously, the physical power of fire fighter also can be saved to the structure of transporting of good fire hose, guarantees that the fire fighter drops into with the biggest energy and puts out a fire.
The existing firefighter equipment mainly comprises a fire protection suit, a positive pressure type air respirator, a fire-resistant life rope, an explosion-proof lamp, a Taiping axe, a safety helmet, a fire-fighting rubber boot and the like. Firefighters need to carry some specialized equipment when participating in fire fighting or other rescue operations. Firefighters also need to carry these firefighter equipment together while carrying the fire hose.
Along with the increasing of large fire fighting fires, the problem that a hose line is difficult to lay in the process of remote water supply is more and more prominent, the handle part of a hose trailer frame in the prior art is required to be quickly and conveniently pushed and pulled by a fireman, the burden of the fireman is required to be relieved, the hose trailer frame is used for transporting fireman equipment instead of the fireman equipment, and the fireman can conveniently and quickly take the hose trailer; if the pull rod can not stretch out and draw back, when need not the use, the fire hose trailer occupation space is big on the fire engine or in the fire control building, has great influence to the trafficability characteristic of fire engine, fire control place.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a folding type fire hose trailer frame to the problem of well waterproof belt trailer frame in prior art.
For this reason, the above-mentioned purpose of the present invention is achieved by the following technical solutions:
the utility model provides a folding type fire hose trailer frame which characterized in that: comprises a pull rod, a frame and a wheel set,
the frame comprises a frame beam and a frame strut, the frame beam is supported at the upper end of the frame strut, the frame beam is U-shaped in the horizontal direction, a fire hose reel is detachably mounted at the opening of the U-shaped, turning mounting arms are rotatably mounted at two sides of the opening end of the U-shaped of the frame beam, mounting grooves are reserved at one side, close to the frame beam, of each turning mounting arm, facing the frame beam, mounting grooves are reserved at the ends of the turning mounting arms, the ends of the fire hose reel are clamped in the mounting grooves when the turning mounting arms are turned over and pressed downwards, and wheel groups are mounted at the lower end of the frame strut;
the frame beam is provided with a frame beam upper mounting section and a frame beam lower mounting section in the vertical direction, the frame beam upper mounting section is detachably fixed with a pull rod, the frame beam lower mounting section is hinged with the pull rod, and the pull rod can be installed on the frame beam in a turnover manner;
the bottom bracket is dustpan-shaped and is used for containing articles, particularly fire fighting equipment can be placed, a pin shaft hole is formed in one end of the bottom bracket and is connected with the frame through a pin shaft, a pull ring and a steel wire are connected with the lower end of the frame through a pull pin, a first pull pin positioning hole and a second pull pin positioning hole are formed in the bottom bracket, the pull pin penetrates through the first pull pin positioning hole to be positioned and unfolded, the bottom bracket is used for containing the articles and serves as a supporting leg of a water hose vehicle so as to be parked, the pull pin penetrates through the second pull pin positioning hole and a mounting hole of the frame, and the turnover bottom bracket is attached to the frame to be stored. The bottom bracket is quickly unfolded, folded, attached and stored by utilizing the hinge structure and the positioning structure. When adopting above-mentioned technical scheme, the utility model discloses can also adopt or make up and adopt following technical scheme:
as the utility model discloses a preferred technical scheme: the frame beam upper mounting section and the frame beam lower mounting section are arranged on the frame beam opposite to the U-shaped opening of the frame beam.
As the utility model discloses a preferred technical scheme: the frame beam upper mounting section is provided with a mounting hole, the pull rod is provided with a mounting hole in a matched manner, and the pull pin is inserted into the pull rod to fix the pull rod on the frame beam upper mounting section;
the lower part of the lower mounting section of the frame beam is provided with a convex U-shaped piece, and the U-shaped piece is clamped into the turned pull rod and can limit the transverse movement of the pull rod.
As the utility model discloses an preferred technical scheme: the pull rod comprises a left pull rod connecting rod, a right pull rod connecting rod and a handle rod, the upper end of the handle rod is connected with the two pull rod connecting rods, the pull pins are arranged at two ends of the handle rod and fixed on the connecting steel wire, the pull pins at the two ends of the handle rod are respectively inserted into the mounting holes of the pull rod connecting rods so as to detachably mount the two pull rod connecting rods, and the handle rod is held to turn over the pull rod to realize turning over and storage.
As the utility model discloses a preferred technical scheme: the pull pin and the connecting steel wire are sleeved with a plastic sleeve.
As the utility model discloses a preferred technical scheme: the frame beam and the turnover mounting arm are provided with a hinged locking device, the hinged locking device comprises a lock catch arranged on the frame beam, the turnover mounting arm is provided with a lock hook at a matched position, and when the turnover mounting arm is pressed down to the matched position, the lock hook is pressed into the lock catch to lock the turnover mounting arm on the frame beam.
As the utility model discloses a preferred technical scheme: the wheel group selects climbing wheels, the frame strut is V-shaped, the lower end of the frame strut is provided with the wheel group, and the upper end of the frame strut is provided with the frame beam.
As the utility model discloses a preferred technical scheme: the pull rod connecting rod comprises a pull rod connecting rod mounting section and a pull rod connecting rod telescopic section, through holes are formed in the pull rod connecting rod mounting section at different height positions, mounting holes are formed in the matched positions of the pull rod connecting rod telescopic section in a matched mode, and the length of the pull rod connecting rod is adjusted by inserting bolts into the through holes in the different height positions.
As the utility model discloses an preferred technical scheme: the bottom bracket is arranged below the U-shaped opening end of the frame beam, a first pull pin positioning hole and a second pull pin positioning hole are symmetrically formed in the two sides of the bottom bracket respectively, and pull ring-shaped clamp pins with symmetrical sides are selected as pull pins and matched with the first pull pin positioning hole and the second pull pin positioning hole of the inserted pin.
As the utility model discloses a preferred technical scheme: the pull ring-shaped bayonet locks with symmetrical two sides are connected with the pull ring in the middle part, and the pull ring is pulled to unlock the positioning of the bottom bracket.
The utility model discloses a folding type fire hose trailer frame, the installation that turns over to turn over the book is on the frame roof beam to utilize the pull rod, when realizing that the pull rod pulls the fire hose trailer that is heavy in weight, bulky steadily, realizes turning over a book of pull rod and accomodates, when the fire hose trailer frame does not use, reduces the space that occupies; the bottom bracket is arranged below the U-shaped opening,
drawings
Fig. 1 is a schematic structural view of the folding type fire hose trailer frame of the present invention when unfolded;
fig. 2 is a schematic structural view 1 of the foldable fire hose trailer frame of the present invention when folded;
fig. 3 is a schematic structural view 2 of the foldable fire hose trailer frame of the present invention when folded;
FIG. 4 is a view showing a local explosion intention when the foldable fire hose trailer frame of the present invention is folded;
FIG. 5 is a partial schematic view of the bottom bracket of the present invention exploded;
FIG. 6 is a schematic view of the usage state of the present invention;
in the drawings, a fire hose reel 7; a pull rod 18; a handle bar 1802; a tie rod mounting section 1803; a tension rod link telescoping section 1804; a wheel set 19; a frame 20; a frame beam 2001; a frame strut 2002; a fold-over mounting arm 2003; a mounting groove 2004; a shelf 2005; a frame beam upper mounting section 2006; a frame underbeam mounting section 2007; a U-shaped member 2008; a catch 2009; a latch hook 2010; a pull pin 24; a connecting wire 25; a latch 26; a plastic sheath 27; a bottom bracket 28; a pin bore 2801; a first pull pin positioning hole 2802; a second pull pin positioning hole 2803; a pull pin 2804; a tab 29; a steel wire 30.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1-6, the folding type fire hose trailer frame of the present invention comprises a pull rod 18, a frame 20 and a wheel set 19; the pull rod 18 is connected at one end to the frame 20 and at the other end serves as a handle for pulling by a firefighter.
The wheel sets 19 are mounted at the bottom of the frame 20 and the auxiliary pull rod 18 enables a folding type fire hose trailer to move in any direction.
The frame 20 comprises a frame beam 2001 and a frame strut 2002, the upper end of the frame strut 2002 supports the frame beam 2001, a reel 7 is detachably mounted on the frame beam 2001, and a wheel set 19 is mounted at the lower end of the frame strut 2002;
the frame beam 2001 is provided with a frame beam upper mounting section 2006 and a frame beam lower mounting section 2007 in the vertical direction, the frame beam upper mounting section 2006 is detachably fixed with the pull rod 18, the frame beam lower mounting section 2007 is hinged with the pull rod 18, and the pull rod 18 can be installed on the frame beam 2001 in a turnover mode.
The utility model discloses in, still include bottom bracket 28, bottom bracket 28 is the dustpan form and holds article, especially can place the fire-fighting equipment, bottom bracket 28 one end link up and sets up round pin shaft hole 2801, is connected with frame 20 through the round pin axle, pull ring 29 and steel wire 30 with draw round pin 2804 connect in the lower extreme of frame 20, set up first draw round pin locating hole 2802 and second on the bottom bracket 28 and draw round pin locating hole 2803, draw round pin 2804 to pass first draw round pin locating hole 2802 location and expand bottom bracket 28 and be used for holding article and as the landing leg of hosepipe car so that park, draw the round pin to pass the second and draw round pin locating hole 2803 and the mounting hole of frame, turn over a bottom bracket 28 and paste and accomodate by the frame. The bottom bracket is quickly unfolded, folded, attached and stored by utilizing the hinge structure and the positioning structure.
The utility model discloses in, pull rod 18 can turn over the installation of rolling over on frame roof beam 2001, when promoting the stability of the use of pull rod 18, realize rolling over of pull rod fast and accomodate, space that occupies when reducing the rest of fire hose trailer frame.
The frame beam 2001 and the folding mounting arm 2003 are provided with a hinge locking device, the hinge locking device comprises a lock buckle 2009 arranged on the frame beam 2001, a lock hook 2010 arranged at a matching position of the folding mounting arm 2003, and when the folding mounting arm 2003 is pressed down to the matching position, the lock hook 2010 is pressed into the lock buckle 2009 to lock the folding mounting arm 2003 on the frame beam 2001.
The frame beam 2001 is U-shaped in the horizontal direction, and the fire hose reel 7 is installed at one end of the U-shaped opening of the frame beam 2001.
The frame beam upper mounting section 2006 and the frame beam lower mounting section 2007 are provided on the frame beam 2001 on the opposite side of the U-shaped opening.
The frame beam upper mounting section 2006 is provided with a mounting hole, the pull rod 18 is provided with a mounting hole in a matched manner, and the pull pin 24 is inserted into the pull rod 18 to fix the pull rod 18 on the frame beam upper mounting section 2006; the frame beam is provided with a protruding U-shaped piece 2008 at the lower part of a frame beam lower mounting section 2007, the U-shaped piece 2008 is clamped into a turnover pull rod 18 to limit the transverse movement of the pull rod 18, the pull rod 18 comprises left and right side pull rod connecting rod mounting sections 1803 and handle rods 1802 with the upper ends connected with two side pull rod connecting rod telescopic sections 1804, pull pins 24 are arranged at two ends and fixed on a connecting steel wire 25, the pull pins 24 at the two ends are respectively inserted into mounting holes of the pull rod connecting rod mounting sections 1803, the handle rods 1802 are held to turn over the pull rod 18 to realize turnover storage, and plastic sleeves 27 are sleeved outside the pull pins 24 and the connecting steel wire 25 to protect a fireman from being injured by the steel wire.
The pull rod connecting rod installation section 1803 is provided with a bolt 26 at the bottom position, the pull rod connecting rod telescopic section 1804 is provided with installation holes at the matched position, and the bolt 26 is inserted into through holes of the installation holes at different height positions to adjust the length of the pull rod connecting rod.
The frame beam 2001 is hinged with a turnover mounting arm 2003 on the end parts of two sides of the U-shaped opening end, the turnover mounting arm 2003 is provided with a mounting groove 2004 on one side of the frame beam 2001 facing the frame beam 2001, and when the turnover mounting arm 2003 is turned over and pressed down on the frame beam 2001, the fire hose reel 7 is detachably and fixedly mounted on the frame beam 2001, so that the fire hose reel 7 can be prevented from being separated due to vibration, and a fire hose can be safely and stably conveyed to a place required for fire fighting.
The wheel set 19 is a climbing wheel, the frame support 2002 is V-shaped, the wheel set 19 is arranged at the lower end of the V shape, and the frame beam 2001 is arranged at the upper end of the V shape. The fire hose trailer frame can be conveniently pulled by firemen on a plane or a slope.
The pull rod connecting rod 18 comprises a pull rod connecting rod mounting section 1803 and a pull rod connecting rod telescopic section 1804, the pull rod connecting rod mounting section 1803 is provided with through holes at different height positions, the pull rod connecting rod telescopic section 1804 is provided with mounting holes at matched positions, and the plug 26 plug mounting holes are arranged at the through holes at different height positions to adjust the length of the pull rod connecting rod 18, so that the fire hose reel dragging device is suitable for the towing of fire hose reels with different heights and sizes of different outer rings.
Bilaterally symmetrical pull-ring-shaped bayonet locks are connected to a central pull ring 29 by a wire 30, and the pull ring 29 is pulled to unlock the bottom bracket 28.
The utility model discloses a bottom bracket 28 sets up through pull ring 29 and bilateral symmetry, through holding an action of pull ring 29, just can realize that both sides pull ring shape bayonet lock unties the location to bottom bracket 28, and the bottom bracket is rolled over to convenient manual book, makes it paste and realizes accomodating on frame 20, when not using, occupation space as few as possible.
The above-mentioned embodiments are only for explaining the preferred embodiments of the present invention, and not for limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made by the present invention fall within the protection scope of the present invention within the spirit and the protection scope of the claims.
Claims (10)
1. The utility model provides a folding type fire hose trailer frame which characterized in that: comprises a pull rod, a frame and a wheel set,
the frame comprises a frame beam and a frame strut, the frame beam is supported at the upper end of the frame strut, the frame beam is U-shaped in the horizontal direction, a fire hose reel is detachably mounted at the opening of the U-shaped, turning mounting arms are rotatably mounted at two sides of the opening end of the U-shaped of the frame beam, mounting grooves are reserved at one side, close to the frame beam, of each turning mounting arm, facing the frame beam, mounting grooves are reserved at the ends of the turning mounting arms, the ends of the fire hose reel are clamped in the mounting grooves when the turning mounting arms are turned over and pressed downwards, and wheel groups are mounted at the lower end of the frame strut;
the frame beam is provided with an upper frame beam mounting section and a lower frame beam mounting section in the vertical direction, the upper frame beam mounting section can detachably fix a pull rod, the lower frame beam mounting section is hinged with the pull rod, and the pull rod can be arranged on the frame beam in a turnover manner;
the bottom bracket is dustpan-shaped and is used for containing articles, such as fire-fighting equipment, one end of the bottom bracket is communicated with a pin shaft hole, the bottom bracket is connected with a frame through a pin shaft, a pull ring and a steel wire are connected with the lower end of the frame through a pull pin, a first pull pin positioning hole and a second pull pin positioning hole are formed in the bottom bracket, the pull pin penetrates through the first pull pin positioning hole to be positioned and unfolded, the bottom bracket is used for containing the articles and serves as a supporting leg of a water hose vehicle so as to be parked, the pull pin penetrates through the second pull pin positioning hole and a mounting hole of the frame, the turnover bottom bracket is attached to the frame to be contained, and the hinge structure and the positioning structure are used for realizing that the bottom bracket is quickly unfolded and attached to be contained.
2. A folding fire hose trailer frame as defined in claim 1, wherein: the frame beam upper mounting section and the frame beam lower mounting section are arranged on the frame beam opposite to the U-shaped opening of the frame beam.
3. A folding fire hose trailer frame as defined in claim 2, wherein: the frame beam upper mounting section is provided with a mounting hole, the pull rod is provided with a mounting hole at a matched position, and the pull pin is inserted into the pull rod to fix the pull rod on the frame beam upper mounting section;
the lower part of the lower mounting section of the frame beam is provided with a convex U-shaped piece, and the U-shaped piece is clamped into the turned pull rod and can limit the transverse movement of the pull rod.
4. A folding fire hose trailer frame as defined in claim 3, wherein: the pull rod includes that left and right sides pull rod connecting rod and upper end connect the handle pole of both sides pull rod connecting rod, draws the round pin setting at both ends, fixes on connecting the steel wire, and the round pin that draws at both ends inserts the mounting hole of pull rod connecting rod respectively with demountable installation both sides pull rod connecting rod, holds the handle pole and turns over a pull rod realization and turn over a book and accomodate.
5. The folding type fire hose trailer frame of claim 4, wherein: the pull pin and the connecting steel wire are sleeved with a plastic sleeve.
6. A folding fire hose trailer frame as defined in claim 1, wherein: the frame beam and the turnover mounting arm are provided with a hinged locking device, the hinged locking device comprises a lock catch arranged on the frame beam, the turnover mounting arm is provided with a lock hook at a matched position, and when the turnover mounting arm is pressed down to the matched position, the lock hook is pressed into the lock catch to lock the turnover mounting arm on the frame beam.
7. A folding fire hose trailer frame as defined in claim 1, wherein: the wheel group selects the climbing wheel, the frame strut is V-shaped, the lower end is provided with the wheel group, and the upper end is provided with the frame beam.
8. A folding fire hose trailer frame as defined in claim 3, wherein: the pull rod connecting rod comprises a pull rod connecting rod mounting section and a pull rod connecting rod telescopic section, a bolt is arranged at the bottom of the pull rod connecting rod mounting section, a mounting hole is formed in the matched position of the pull rod connecting rod telescopic section in a matched mode, and the bolt is inserted into the through holes in different height positions to adjust the length of the pull rod connecting rod.
9. A folding fire hose trailer frame as defined in claim 1, wherein: the bottom bracket is arranged below the U-shaped opening end of the frame beam and below one side deviating from the pull rod, a first pull pin positioning hole and a second pull pin positioning hole are symmetrically formed in the two sides of the bottom bracket respectively, and pull ring-shaped clamp pins which are symmetrical in two sides are selected as the pull pins and matched with the first pull pin positioning hole and the second pull pin positioning hole of the inserted pin.
10. A folding fire hose trailer frame as defined in claim 9, wherein: the pull-ring-shaped bayonet locks with symmetrical two sides are connected with the pull ring in the middle, and the pull ring is pulled to unlock the positioning of the bottom bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221933512.XU CN218740003U (en) | 2022-07-25 | 2022-07-25 | Folding type fire hose trailer frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221933512.XU CN218740003U (en) | 2022-07-25 | 2022-07-25 | Folding type fire hose trailer frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218740003U true CN218740003U (en) | 2023-03-28 |
Family
ID=85690712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221933512.XU Active CN218740003U (en) | 2022-07-25 | 2022-07-25 | Folding type fire hose trailer frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218740003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024022298A1 (en) * | 2022-07-25 | 2024-02-01 | 王建勇 | Automatic drainage and partitioned winding structure for fire hose |
-
2022
- 2022-07-25 CN CN202221933512.XU patent/CN218740003U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024022298A1 (en) * | 2022-07-25 | 2024-02-01 | 王建勇 | Automatic drainage and partitioned winding structure for fire hose |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218740003U (en) | Folding type fire hose trailer frame | |
| CN209361720U (en) | A kind of high altitude firefighting system | |
| CN109289139A (en) | A kind of high altitude firefighting system | |
| CN109985330B (en) | High-rise fire rescue vehicle based on remote anchoring dispatch of aircraft | |
| CN111803838A (en) | Fire-fighting rescue container | |
| JP2016106648A (en) | Fall prevention safety device and fall prevention safety method | |
| KR20120028070A (en) | Hose transfer apparatus for fire-fighting | |
| CN207012453U (en) | Suspension type fire hose winds car and its suspension mounting structure | |
| CN213573325U (en) | Highway maintenance engineering is with collapsible rail | |
| CN219251525U (en) | Folding fire hose trailer frame | |
| CN209881304U (en) | Movable cable and wire tube bracket | |
| CN209612059U (en) | A kind of high altitude firefighting experimental system | |
| KR102475355B1 (en) | floating water tank type fire exthinguish device for electric car | |
| CN207532666U (en) | Fire hose, which transports, is laid with towed vehicle | |
| CN201066400Y (en) | A back load optical cable laying and withdrawing device | |
| JP3222164U (en) | Method and apparatus for handling hose supply | |
| CN218907256U (en) | Folding cart capable of winding fire hose | |
| CN203944042U (en) | Hydraulic relay jacking type tall-building fire fighting bridge | |
| CN209702023U (en) | A kind of fire hose automatic rolling device and Portable fire-fighting water hose vehicle | |
| US11753270B1 (en) | Firehose winder | |
| CN206896642U (en) | A kind of fire fighting truck | |
| CN213884829U (en) | Library uses fire control facility | |
| CN214455658U (en) | Low-voltage cable paying-off device | |
| CN212941087U (en) | Fire-fighting rescue container | |
| CN108316854B (en) | A kind of used in fire-fighting automatic turning fire-fighting rack fetching device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |