CN220783746U - Multifunctional spanner for rope tightener of truck - Google Patents
Multifunctional spanner for rope tightener of truck Download PDFInfo
- Publication number
- CN220783746U CN220783746U CN202322499020.5U CN202322499020U CN220783746U CN 220783746 U CN220783746 U CN 220783746U CN 202322499020 U CN202322499020 U CN 202322499020U CN 220783746 U CN220783746 U CN 220783746U
- Authority
- CN
- China
- Prior art keywords
- pawl
- ratchet
- shaft
- ratchet wheel
- wrench
- 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
- 238000009434 installation Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- 238000004804 winding Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Emergency Lowering Means (AREA)
Abstract
The utility model belongs to the technical field of rope tightener auxiliary devices, and provides a multifunctional truck rope tightener wrench, which comprises: the device comprises a mounting body, a ratchet, a pawl, a ratchet shaft, a working rod, a handle and a spring piece; the mounting body is fixedly connected with the handle, the ratchet shaft penetrates through the mounting body and is rotationally connected with the mounting body, and the ratchet is fixedly connected with the ratchet shaft; the pawl is movably connected with the mounting body, the spring piece is contacted with the pawl and provides elastic force close to the ratchet wheel for the pawl, so that the pawl is contacted with the ratchet wheel, and the ratchet wheel is locked in a one-way; the utility model does not require the user to toggle the handle to any preset limit position in actual operation. This means that the user can realize the fastening of rope through simple reciprocal stirring, has simplified the operation flow greatly, has improved work efficiency.
Description
Technical Field
The utility model belongs to the technical field of rope tightener auxiliary instruments, and particularly relates to a multifunctional truck rope tightener wrench.
Background
The rope tighteners for trucks are arranged on side beams at two sides of a carriage flat plate, and the number of the rope tighteners is up to hundreds and used for binding and reinforcing cargoes. The rope is passed around the top of the truck cargo and then secured using a rope tensioner. Compared with the traditional fixing method of manually knotting ropes, webbing and the like, the fixing method of the truck for fixing goods by using the rope tightener is simple and convenient to operate and more reliable in fixing the goods. Wherein the rope tightener is shown in fig. 6 and 7.
In the prior art, when the rope is tightly tied, a crow bar is generally used for being inserted into the jack of the rope tightener, and then the bobbin of the rope tightener can be driven by pulling the crow bar. Because the euphroe sets up in the dull and stereotyped lower part in carriage, can receive the restriction of carriage bottom when the crow inserts a set of jack on the bobbin and carry out the rope and bind, the crow just needs to be pulled out to the rotation distance of every turn less than 1/4 circle, inserts another set of jack, stirs once more, so reciprocating insert the jack with pull out the jack more troublesome, and it is time consuming moreover. Changing to another group of jacks, the jacks need to be frequently changed when the shaft head is rotated, and time is wasted.
In order to solve the technical problems, in the prior art, the utility model disclosed in the publication No. CN206825295U discloses a wrench of an automobile rope tightener, which is used for rotating an axle of the automobile rope tightener. When the automobile rope tightener wrench is in use, a moment is applied to one end of the wrench rod to drive the wheel shaft to rotate. When the spanner rod rotates to the limit position, the lantern ring is rotated to enable the toggle teeth to move into the opposite shaft head holes, and then the force is continuously applied to rotate the wheel shaft until the rope is tightly twisted. When the spanner rod is shifted, the lantern ring of the spanner rod can be axially offset, so that the shifting teeth cannot enter the jack, and the winding tube cannot be driven. In the process of shifting the spanner rod, friction exists between the shifting teeth and the outer wall of the bobbin, so that the bobbin can be worn. Each operation requires turning the wrench bar to its extreme position, which complicates the operation process.
Disclosure of Invention
The utility model provides a multifunctional truck rope tightener wrench, which aims to solve the problems in the prior art.
The utility model is realized in that a multifunctional truck euphroe wrench comprises: the device comprises a mounting body, a ratchet, a pawl, a ratchet shaft, a working rod, a handle and a spring piece; the mounting body is fixedly connected with the handle, the ratchet shaft penetrates through the mounting body and is rotationally connected with the mounting body, and the ratchet is fixedly connected with the ratchet shaft; the pawl is movably connected with the mounting body, the spring piece is contacted with the pawl and provides elastic force close to the ratchet wheel for the pawl, so that the pawl is contacted with the ratchet wheel, and the ratchet wheel is locked in a one-way; the working rod is fixedly connected with the ratchet shaft.
Optionally, the mounting body comprises a mounting seat and two mounting ear plates; the ratchet shaft penetrates through the two mounting lug plates and is in rotary connection with the two mounting lug plates.
Optionally, a through hole matched with the ratchet shaft is formed in the ratchet.
Optionally, a mounting shaft is arranged between the two mounting ear plates, the mounting shaft penetrates through the pawl, and the pawl is rotationally connected with the mounting shaft.
Optionally, the spring piece is fixedly connected with the side of the mounting seat, and the spring piece is contacted with the pawl.
Optionally, slots are provided at both ends of the ratchet shaft, and both slots are used for plugging the adapter.
Optionally, the inside hollow state that is of handle, just the handle is kept away from the one end of installation body is provided with the tangent plane of slope.
Optionally, the ratchet wheel is welded and fixed with the ratchet wheel shaft.
The utility model has the beneficial effects that: the multifunctional truck euphroe wrench of the utility model can continuously maintain the working rod in a fixed position in the jack when driving the bobbin. The design fully solves the problem that in the prior art, the jack cannot be accurately accessed due to the design defect of the poking teeth. More importantly, the present utility model does not cause any friction or abrasion to the outer surface of the bobbin during operation, thereby ensuring long-term stability and reliability of the device, compared to the conventional art.
In addition, the utility model does not require the user to toggle the handle to any preset limit position in actual operation. This means that the user can realize the fastening of rope through simple reciprocal stirring, has simplified the operation flow greatly, has improved work efficiency.
The multifunctional design ensures that the rope tightener wrench of the truck is not only limited to the rope tightening function, but also can be used as a traditional ratchet wrench, and can be used for tightening and disassembling screws, thereby greatly improving the practicability and the universality of the wrench.
The multifunctional truck rope tightener wrench not only can be used as a wrench, but also can be used as a crowbar for prying the net, so that the versatility and the practicability of the multifunctional truck rope tightener wrench are greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a multifunctional truck euphroe wrench;
FIG. 2 is an exploded view of a multi-function truck euphroe wrench provided by the present utility model;
fig. 3 is a schematic structural view of a multifunctional truck rope tightener wrench and adapter in a separated state;
fig. 4 is a schematic structural view of a multifunctional truck euphroe wrench mounting adapter provided by the utility model;
FIG. 5 is a schematic diagram of a front cross-sectional structure of a mounting body of a multifunctional truck euphroe wrench provided by the utility model;
FIG. 6 is a schematic view of the structure of the truck euphroe provided by the present utility model;
FIG. 7 is a schematic diagram of a multifunctional truck euphroe wrench and truck euphroe used in combination according to the present utility model;
fig. 8 is a schematic side view of a multifunctional truck rope tightener wrench as a net pry.
The reference numerals are as follows:
1-mounting body, 11-mounting seat, 12-mounting lug plate, 13-mounting shaft, 2-ratchet wheel, 21-through hole, 3-pawl, 4-ratchet wheel shaft, 41-slot, 5-working rod, 6-handle, 61-section, 7-spring leaf, 8-adapter, 9-rope tightener, 91-main body, 92-winding tube, 93-jack and 94-rope hook.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.
The terms "first" and "second" and the like in this application are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps, operations, components, or modules is not limited to the particular steps, operations, components, or modules listed but may optionally include additional steps, operations, components, or modules inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
As shown in fig. 1 to 7, a multifunctional truck euphroe wrench of an exemplary embodiment includes: the device comprises a mounting body 1, a ratchet wheel 2, a pawl 3, a ratchet wheel shaft 4, a working rod 5, a handle 6 and a spring piece 7; the installation body 1 is fixedly connected with the handle 6, the ratchet shaft 4 penetrates through the installation body 1 and is rotationally connected with the installation body 1, and the ratchet 2 is fixedly connected with the ratchet shaft 4; the pawl 3 is movably connected with the installation body 1, the spring piece 7 is contacted with the pawl 3, and provides elastic force for the pawl 3 to approach the ratchet wheel 2, so that the pawl 3 is contacted with the ratchet wheel 2, and the ratchet wheel 2 is locked in a one-way; the working rod 5 is fixedly connected with the ratchet shaft 4.
As shown in fig. 6 and 7, the conventional rope tensioner 9 includes a main body 91, a bobbin 92 rotatably coupled to the main body 91, and a ratchet assembly; the bobbin 92 is used for winding rope, a jack 93 is arranged on the bobbin 92, and a rope hook 94 is arranged on the bobbin 92, and the rope hook 94 is used for hooking rope. In actual use, the rope is fixed on the winding tube 92 of the rope tightener 9; as shown in fig. 7, the working rod 5 is inserted into the insertion hole 93, and then the handle 6 is reciprocally toggled. When the handle 6 is lifted upwards, the handle 6 drives the mounting body 1 to rotate relative to the axis of the bobbin 92, and the pawl 3 moves around the ratchet wheel 2 along with the mounting body 1. When the handle 6 is pressed downwards, the pawl 3 cannot perform circular motion around the ratchet wheel 2, the pawl 3 and the ratchet wheel 2 are relatively static, the pawl 3 drives the ratchet wheel 2 to rotate, the ratchet wheel 2 drives the ratchet wheel shaft 4 to rotate, the ratchet wheel shaft 4 drives the working rod 5 to rotate, further the driving of the winding tube 92 is achieved, the winding tube 92 rotates to wind a rope on a truck, and the rope tightening effect is achieved.
In actual use, the user only needs to dial the handle 6 back and forth, and multiple switching or adjustment is not needed. Furthermore, the handle 6 acts as a power arm for the lever in the mechanical configuration, which design significantly enhances the lever effect, thus enabling a labour-saving operation.
In contrast to the conventional art, the multifunctional truck cord grip wrench of the present utility model is capable of continuously retaining the work bar 5 in the socket 93 when the bobbin 92 is driven. The design fully solves the problem that in the prior art, the jack cannot be accurately accessed due to the design defect of the poking teeth. More importantly, the present utility model does not cause any friction or abrasion to the outer surface of the bobbin 92 during operation, thereby ensuring long-term stability and reliability of the apparatus, compared to the conventional art.
Furthermore, the present utility model does not require the user to toggle the handle 6 to any preset limit position in actual operation. This means that the user can realize the fastening of rope through simple reciprocal stirring, has simplified the operation flow greatly, has improved work efficiency.
In summary, compared with the prior art, the multifunctional truck rope tightener wrench clearly provides more excellent and superior use experience, and meets the high-efficiency, simple and reliable requirements of modern logistics and transportation industries.
As an alternative embodiment, the mounting body 1 includes a mounting seat 11 and two mounting ear plates 12; the ratchet shaft 4 passes through both of the mounting lugs 12 and is rotatably connected to both of the mounting lugs 12. The two mounting lugs 12 are distributed on both sides of the mounting seat 11 to provide additional support for strengthening the overall structure and ensure the stability of the device during operation.
Still further, the ratchet shaft 4 is designed to pass through both of the mounting lugs 12. By this design, a rotational connection is formed between the ratchet shaft 4 and the two mounting lugs 12. This pivotal connection ensures that the ratchet shaft 4 can be smoothly rotated without unnecessary interference or obstruction when the handle 6 is operated.
As an alternative embodiment, the ratchet wheel 2 is provided with a through hole 21 matched with the ratchet shaft 4. The ratchet shaft 5 passes through the through hole 21 and forms a fixed connection with the ratchet 2. It is ensured that any rotation of the ratchet wheel 2 is directly transmitted to the ratchet shaft 4, thereby achieving an accurate and stable transmission effect.
As an alternative embodiment, a mounting shaft 13 is provided between the two mounting lugs 12, the mounting shaft 13 passes through the pawl 3, and the pawl 3 is rotatably connected with the mounting shaft 13. Specifically, a mounting shaft 13 is provided between the two mounting lugs 12. The purpose of this mounting shaft 13 is to provide a stable rotational axis for the pawl 3, to ensure smooth rotation during operation and to reduce unnecessary wear due to friction or misalignment.
Further, the pawl 3 is connected to the mounting shaft 13 through a through hole in the inside thereof, thereby securing a rotational connection therebetween.
As an alternative embodiment, one end of the spring plate 7 extends into the mounting seat 11, and the other end located outside the mounting seat 11 is in contact with the pawl 3. In a normal state, as shown in fig. 5, the spring piece 7 applies a certain elastic pressure to the pawl 3. This elastic pressure forces the end of the pawl 3 to be inserted between the teeth of the ratchet wheel 2, so that the ratchet wheel 2 can be rotated in only one direction (e.g. clockwise). When an attempt is made to rotate the ratchet 2 in the opposite direction (e.g., counterclockwise), the ratchet 2 is locked against counterclockwise rotation due to the presence of the pawl 3 and its elastic action with the spring piece 7.
When the ratchet wheel 2 rotates in the allowed clockwise direction, its teeth push the pawl 3, causing the spring plate 7 to elastically deform. But since one end of the spring plate 7 is fixed by the mounting seat 11, it will resume its original shape and continue to exert pressure on the pawl 3, ensuring that the pawl 3 is then reinserted between the teeth of the ratchet wheel 2.
The material of the leaf spring 7 is chosen to ensure that it retains elastic properties in continued use. In the present embodiment, stainless steel is recommended as the material of the spring piece 7, but other materials having good elastic properties and corrosion resistance are also considered.
As an alternative embodiment, both ends of the ratchet shaft 4 are provided with slots 41, both slots 41 being used for plugging the adapter 8. The ratchet shaft 4 is provided with slots 41 at both ends, the presence of which expands the function of the tool so that it can be used with the adapter 8.
As shown in fig. 3 and 4, the adapter 8 is used to connect to the drive socket of an existing socket wrench. In use, a user first selects the appropriate size drive sleeve and connects it to the adapter 8. Subsequently, the driving sleeve is fitted over the hexagonal nut, and then the nut is rotated in a predetermined direction by reciprocally moving the handle 6. When the nut is required to be reversely rotated, the adapter 8 is only required to be inserted into the slot 41 at the other end of the ratchet shaft 4, and the handle 6 is required to be reciprocally moved again. The connection between the driving socket and the wrench body in the socket wrench is also performed through the adapter 8 of the present utility model, and the specific connection manner belongs to the technical common knowledge known to those skilled in the art, and will not be described in detail herein.
It is worth noting that the multifunctional design ensures that the rope tightener wrench of the truck is not only limited to the rope tightening function, but also can be used as a traditional ratchet wrench, and can be used for tightening and disassembling screws, so that the practicability and the universality of the rope tightener wrench of the truck are greatly improved.
As an alternative embodiment, the interior of the handle 6 is hollow, and an inclined tangential plane 61 is provided at an end of the handle 6 away from the mounting body 1, and such a tangential plane 61 structure is generally called a net pry.
In practical application, after goods are loaded into the truck, the goods are bound and covered in order to ensure the safety of goods transportation. Binding the goods by using ropes, and covering the goods on the net; when the net is covered, the net is usually tensioned by force, so that the rope hooks of the net holes mounted on the rope tightener ensure close adhesion with goods; this process is not only cumbersome to handle, but also physically demanding for the person pulling the net.
In this embodiment, as shown in fig. 8, in order to simplify the above-described operation and reduce the work load, when it is necessary to tighten the net, the user may pass the handle 6 through the mesh, and the net sled at the end of the handle 6 is positioned at the end of the rope hook 94, and the end portion of the rope hook 94 is extended into the handle 6. After that, the user can easily press the handle 6 by using the lever principle, the handle 6 drives the net to be pulled up, and the net is continuously pressed down until the axis of the handle 6 and the axis of the rope hook 94 are in the same line or approximately the same line, and at this time, the net can easily move along the surface of the handle 6 and then is mounted on the rope hook. It should be noted that, for the fixation of the net, it is necessary that the end of the rope hook 94 is directed to the ground or tends to be directed to the ground, ensuring that the rope hook 94 can mount the mesh. During operation of the tightener wrench of the present embodiment, the tightener 9 is in a stationary state.
Therefore, the multifunctional truck rope tightener wrench in the embodiment not only can be used as a wrench, but also can be used as a crowbar for prying the net, and the versatility and the practicability of the multifunctional truck rope tightener wrench are greatly improved.
As an alternative embodiment, the ratchet wheel 2 is welded to the ratchet wheel shaft 4, in particular the ratchet wheel shaft 4 passes through a through hole 21 of the ratchet wheel 2 and forms a fixed connection with the ratchet wheel 2 by welding. The ratchet wheel 2 is fixedly connected with the ratchet wheel shaft 4 in a welding mode, so that any rotation of the ratchet wheel 2 can be directly transmitted to the ratchet wheel shaft 4, and a precise and stable transmission effect is realized.
The exemplary embodiments of the present application may be combined with each other, and exemplary embodiments obtained by combining also fall within the scope of the present application.
The present application has been described with particular application to the principles and embodiments thereof, the description of the above examples being only for aiding in the understanding of the method of the present application and its core ideas; meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.
Claims (8)
1. A multi-function truck euphroe wrench, comprising: the device comprises a mounting body (1), a ratchet wheel (2), a pawl (3), a ratchet wheel shaft (4), a working rod (5), a handle (6) and a spring piece (7); the ratchet wheel (2) is fixedly connected with the ratchet wheel shaft (4); the pawl (3) is movably connected with the installation body (1), the spring piece (7) is contacted with the pawl (3) and provides elastic force close to the ratchet wheel (2) for the pawl (3), so that the pawl (3) is contacted with the ratchet wheel (2) to play a role in unidirectional locking of the ratchet wheel (2); the working rod (5) is fixedly connected with the ratchet shaft (4).
2. The multifunctional truck euphroe wrench of claim 1, characterized in that the mounting body (1) comprises a mounting seat (11) and two mounting lugs (12); the ratchet shaft (4) passes through the two mounting lug plates (12) and is rotationally connected with the two mounting lug plates (12).
3. Multifunctional truck tightener wrench according to claim 1 or 2, characterized in that the ratchet wheel (2) is provided with a through hole (21) matching the ratchet shaft (4).
4. The multifunctional truck euphroe wrench of claim 2, characterized in that a mounting shaft (13) is provided between two mounting lugs (12), the mounting shaft (13) passes through the pawl (3), and the pawl (3) is rotatably connected with the mounting shaft (13).
5. The multifunctional truck euphroe wrench of claim 2, characterized in that the spring piece (7) is fixedly connected with the side of the mounting seat (11), and the spring piece (7) is in contact with the pawl (3).
6. Multifunctional truck euphroe wrench according to claim 1, characterized in that both ends of the ratchet shaft (4) are provided with slots (41), both slots (41) being used for plugging in adapter (8).
7. The multifunctional truck euphroe wrench of claim 1, characterized in that the interior of the handle (6) is hollow, and the end of the handle (6) remote from the mounting body (1) is provided with an inclined tangential plane (61).
8. The multi-function truck euphroe wrench of claim 1, wherein the ratchet wheel (2) is welded to the ratchet shaft (4).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322499020.5U CN220783746U (en) | 2023-09-14 | 2023-09-14 | Multifunctional spanner for rope tightener of truck |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322499020.5U CN220783746U (en) | 2023-09-14 | 2023-09-14 | Multifunctional spanner for rope tightener of truck |
Publications (1)
Publication Number | Publication Date |
---|---|
CN220783746U true CN220783746U (en) | 2024-04-16 |
Family
ID=90664449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202322499020.5U Active CN220783746U (en) | 2023-09-14 | 2023-09-14 | Multifunctional spanner for rope tightener of truck |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN220783746U (en) |
-
2023
- 2023-09-14 CN CN202322499020.5U patent/CN220783746U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10464467B2 (en) | Stabilized attachment assembly and ratchet load binder using the same | |
CA2631857C (en) | Cargo strap winch rewinding tool | |
US5271606A (en) | Tensioning ratchet for a lashing strap | |
US4157171A (en) | Tensioning device for chains, wire ropes etc. | |
US5611521A (en) | Power drive for cable tightener | |
US20080263837A1 (en) | Rachet Strap Tightener and Mating Rotary Driven Tool | |
US6139233A (en) | Rapid spooling/tightening binding device | |
JPS58157697A (en) | Lever type small-sized hoisting combined tracking device | |
US6799751B1 (en) | Quick adjusting choke winch | |
CN220783746U (en) | Multifunctional spanner for rope tightener of truck | |
CN201109575Y (en) | Ratcher type fastening arrangement | |
US6092437A (en) | Winch bar | |
US6719507B2 (en) | Tie-down strap winch bar | |
KR200303771Y1 (en) | Freight binding apparatus for a truck | |
CN2233004Y (en) | Multifunctional wire tightener | |
CA2417715A1 (en) | Multifunction tie down winch, vehicle including the same and method of securing cargo on a vehicle | |
CN201254300Y (en) | Belt deploying and retracting device of winch | |
CN201132641Y (en) | Buffered ratchet type cramping arrangement | |
CN220292817U (en) | Net clothes tensioning device and net clothes installing system | |
CN219407677U (en) | Bandage tensioner | |
CN221757838U (en) | Loading, reinforcing and binding device | |
CN207433888U (en) | A kind of ratchet-type load binders | |
CN2781089Y (en) | Belt axle driving mechanism of lift winch | |
CN219056095U (en) | Tent cloth fastening structure of camping car | |
CN210944495U (en) | Novel maritime affairs tight rigging |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |