CN220114712U - Track chain plate structure and track chain assembly - Google Patents

Track chain plate structure and track chain assembly Download PDF

Info

Publication number
CN220114712U
CN220114712U CN202320965285.7U CN202320965285U CN220114712U CN 220114712 U CN220114712 U CN 220114712U CN 202320965285 U CN202320965285 U CN 202320965285U CN 220114712 U CN220114712 U CN 220114712U
Authority
CN
China
Prior art keywords
track
link
track chain
chain plate
hole
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
Application number
CN202320965285.7U
Other languages
Chinese (zh)
Inventor
江春立
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Everpads Co Ltd
Original Assignee
Everpads Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Everpads Co Ltd filed Critical Everpads Co Ltd
Priority to CN202320965285.7U priority Critical patent/CN220114712U/en
Application granted granted Critical
Publication of CN220114712U publication Critical patent/CN220114712U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Electric Cable Arrangement Between Relatively Moving Parts (AREA)

Abstract

A track chain plate structure and a track chain assembly, the track chain plate structure has an outer surface and an inner surface, and the track chain plate structure comprises a first main body and a second main body. The first main body comprises a first chain plate part and a first connecting part. The first link plate portion includes a first shaft hole. The first connecting portion comprises a first inclined surface structure and a first connecting structure. The second main body comprises a second chain plate part and a second connecting part. The second link plate portion includes a second axial hole. The second connecting part comprises a second inclined plane structure and a second connecting structure. The first connecting part and the second connecting part are correspondingly connected so that the first main body and the second main body are combined to form the track chain plate structure. Therefore, the track chain plate structure has the advantages of convenience in disassembly, good structural stability and prolonged service life.

Description

Track chain plate structure and track chain assembly
Technical Field
The utility model provides a track chain plate structure and a track chain assembly, in particular to a track chain plate structure and a track chain assembly applied to a track type action machine.
Background
The crawler chain is composed of a plurality of crawler chain plates and a plurality of crawler belt shoes which are fixed in series through pin sleeves and bolts, and can relatively rotate in a certain range by utilizing the power of the chain wheels through the external tooth structure of the meshed chain wheels, so that the crawler chain has the deformable characteristic, and when the crawler chain faces rough terrain, the crawler belt shoes of the crawler chain can still be closely attached to the ground and can be allowed to mechanically move, thus being widely applied to crawler type action machines such as bulldozers, excavators, tanks and the like.
The conventional track link plates are mostly cast integrally, and in the assembly process of the track chain, a manual hammering manner is mostly adopted to enable the track link plates to be connected with the track shoe. When the track link plate or the track shoe is worn due to friction and impact, the track link plate or the track shoe still needs to be separated by adopting a knocking hammer, so that the conventional track link plate is laborious and time-consuming in the maintenance process.
For this reason, there are separate track link plates on the market, which fasten left and right separate bodies to each other by means of fasteners to form a complete track link plate. When the crawler chain is to be disconnected for repair or maintenance, the crawler chain can be separated by removing part of the crawler chain plates by removing the fasteners connecting the two split bodies, so that the convenience in the process of disassembling the crawler chain is improved. However, since the connecting surfaces of the left and right split bodies of the split type track link plate are all plane surfaces, the left and right split bodies are easy to shake in the process of operating the track type action tool, and even the fastening piece is broken when the torsion is overlarge, and the phenomenon that the track chain falls off is likely to occur.
In view of this, how to make the track link joint promote its structural stability under the circumstances that possesses convenient to detach's advantage, and then extension track link joint's life still has economic worth's appeal in market at present.
Disclosure of Invention
One embodiment of the present utility model provides a track link plate structure having an outer surface and an inner surface, and the track link plate structure includes a first body and a second body. The first main body comprises a first chain plate part and a first connecting part. The first link plate portion includes a first shaft hole. The first connecting portion is integrally connected to the first link plate portion, wherein the height of the first connecting portion perpendicular to a long axis of the track chain plate structure is smaller than the maximum height of the track chain plate structure, and the first connecting portion comprises a first inclined surface structure and a first connecting structure. The first inclined surface structure is arranged on a top surface of the first connecting part. The first connecting structure is integrally arranged on the first inclined surface structure. The second main body comprises a second chain plate part and a second connecting part. The second link plate portion includes a second axial hole. The second connecting portion is integrally connected to the second link plate portion, wherein the height of the second connecting portion perpendicular to the long axis of the track chain plate structure is smaller than the maximum height of the track chain plate structure, and the second connecting portion comprises a second inclined surface structure and a second connecting structure. The second inclined surface structure is arranged on a bottom surface of the second connecting part. The second connecting structure is integrally arranged on the second inclined surface structure. The first ramp structure slopes downwardly from the outer surface toward the inner surface or slopes downwardly from the inner surface toward the outer surface, and the second ramp structure slopes downwardly from the outer surface toward the inner surface or slopes downwardly from the inner surface toward the outer surface. The first connecting part and the second connecting part are correspondingly connected so that the first main body and the second main body are combined to form a track chain plate structure, the first inclined surface structure corresponds to the second inclined surface structure, and the first connecting structure is matched with the second connecting structure.
According to the track chain plate structure of the foregoing embodiment, when the first connecting portion and the second connecting portion are correspondingly connected, the height of the first connecting portion perpendicular to the long axis of the track chain plate structure is H11, the height of the second connecting portion perpendicular to the long axis of the track chain plate structure is H12, and the maximum height of the track chain plate structure is Hmax1, which can satisfy the following conditions: H11+H2 is less than or equal to Hmax1.
According to the track link plate structure of the foregoing embodiment, the first connecting structure may be a groove, and the second connecting structure may be a bump. When the first connecting part and the second connecting part are correspondingly connected, the second connecting structure can be clamped in the first connecting structure.
According to the track link plate structure of the foregoing embodiment, the first connecting structure may be a bump, and the second connecting structure may be a groove. When the first connecting part and the second connecting part are correspondingly connected, the first connecting structure can be clamped in the second connecting structure.
According to the track chain plate structure of the foregoing embodiment, the first connecting portion may further include two hole slots, and the two hole slots are separately formed on the top surface of the first connecting portion. The second connecting portion may further include two through holes, the two through holes are disposed through the second connecting portion, and the two through holes correspond to the two hole slots respectively.
The track link structure according to the foregoing embodiment, wherein the first body may further comprise a protrusion structure. The protruding structure is integrally arranged on the first chain plate part, wherein the protruding structure can be arranged outside the first shaft hole in a surrounding way and protrudes out of the outer surface.
The track link structure according to the foregoing embodiment, wherein the first body may further comprise a groove structure. The groove structure is concavely arranged on the inner surface and can be communicated with the first shaft hole.
The track link plate structure according to the foregoing embodiment, wherein the first ramp structure may slope downwardly from the inner surface toward the outer surface and the second ramp structure may slope downwardly from the inner surface toward the outer surface.
Another embodiment of the present utility model is directed to a track chain assembly comprising at least two pin sets, at least one track link structure as described in the preceding paragraph, and at least one track link structure. Each pin group comprises a pin sleeve and a bolt, and one bolt is inserted into one pin sleeve. The track link structure comprises a first through hole and a second through hole. The first through hole is used for inserting a bolt of a pin group from an outer surface of the crawler belt link structure. The second through hole is used for inserting a bolt of the other pin group from the outer surface of the crawler belt link structure, and the first through hole and the second through hole are separated from each other. The pin group is a first through hole penetrating the crawler link structure after penetrating the first shaft hole from the outer surface of the crawler link structure, and the pin group is a second through hole penetrating the crawler link structure after penetrating the second shaft hole from the outer surface of the crawler link structure.
The track chain assembly according to the foregoing embodiment, wherein the track link structure may further comprise a first link body and a second link body. The first link body may include a first link portion and a first joint portion. The first through hole is provided in the first link portion. The first joint is integrally connected to the first link portion, wherein a height of the first joint perpendicular to a long axis of the track link structure may be smaller than a maximum height of the track link structure, and the first joint may include a first planar structure and a first joint structure. The first plane structure is arranged on a top surface of the first combining part, wherein the first plane structure is parallel to an upper surface of the track link structure. The first combining structure is integrally arranged on the first plane structure. The second link body may include a second link portion and a second joint portion. The second through hole is provided in the second link portion. The second joint is integrally connected to the second link portion, wherein a height of the second joint perpendicular to the long axis of the track link structure may be less than a maximum height of the track link structure, and the second joint may include a second planar structure and a second joint structure. The second plane structure is arranged on a bottom surface of the second combining part, wherein the second plane structure is parallel to a lower surface of the track link structure. The second combining structure is integrally arranged on the second plane structure. The first combining part and the second combining part are correspondingly connected so that the first link main body and the second link main body are combined to form a track link structure, and the first combining structure is matched with the second combining structure.
According to the track chain assembly of the foregoing embodiment, when the first joint is correspondingly connected to the second joint, the height of the first joint perpendicular to the long axis of the track link structure is H21, the height of the second joint perpendicular to the long axis of the track link structure is H22, and the maximum height of the track link structure is Hmax2, which can satisfy the following conditions: H21+H2 is less than or equal to Hmax2.
According to the track chain assembly of the foregoing embodiment, the first engaging structure may be a groove, and the second engaging structure may be a bump. When the first combining part and the second combining part are correspondingly connected, the second combining structure can be clamped in the first combining structure.
According to the track chain assembly of the foregoing embodiment, the first engaging structure may be a bump, and the second engaging structure may be a groove. When the first combining part and the second combining part are correspondingly connected, the first combining structure can be clamped in the second combining structure.
According to the track chain assembly of the foregoing embodiment, the first connecting portion may further include two through-hole grooves, and the through-hole grooves are formed on the top surface of the first connecting portion separately from each other. The second combining part can further comprise two through holes, the two through holes are penetrated in the second combining part, and the two through holes correspond to the two through hole grooves respectively.
The track chain assembly in accordance with the foregoing embodiments, wherein the track link structure may further comprise an extension structure. The extending structure can be arranged outside the first through hole in a surrounding way and protrudes out of the outer surface of the crawler belt link structure.
The track chain assembly in accordance with the foregoing embodiments, wherein the track link structure may further comprise a channel structure. The groove-shaped structure is concavely arranged on an inner surface of the track link structure and can be communicated with the first through hole.
It is a further embodiment of the present utility model to provide a track chain assembly comprising at least two pin sets and at least two track chain plate structures as described in the preceding paragraph. Each pin group comprises a pin sleeve and a bolt, and one bolt is inserted into one pin sleeve. The pin group penetrates through the first shaft hole of the other track chain plate structure from the outer surface of the track chain plate structure and penetrates through the first shaft hole of the other track chain plate structure, and the pin group penetrates through the second shaft hole of the other track chain plate structure from the outer surface of the track chain plate structure and penetrates through the second shaft hole of the other track chain plate structure.
The track chain assembly in accordance with the foregoing embodiment, wherein the first ramp structure of the one track chain plate structure is tiltable downwardly from the inner surface towards the outer surface, and the first ramp structure of the other track chain plate structure is tiltable downwardly from the inner surface towards the outer surface.
The track chain assembly in accordance with the foregoing embodiments, wherein an angle of inclination of the first incline structure of the one track chain plate structure may be the same as an angle of inclination of the first incline structure of the other track chain plate structure.
Therefore, the track chain plate structure and the track chain assembly comprise the structural configuration of the first main body and the second main body through the track chain plate structure, so that convenience of the track chain assembly in the disassembling process is improved, and the track type action machine is convenient to repair or maintain. Furthermore, through the first inclined plane structure of at least two track chain plate structures from the surface downward sloping of the surface to the interior surface of track chain plate structure or from the interior surface to the structure disposition of the surface downward sloping of track chain plate structure, be favorable to promoting track chain assembly's structural stability to can reduce when operating crawler-type action machines, take place the risk that rock phenomenon such as relative displacement and cause fastener deformation and fracture because of first main part and second main part, and then extension track chain plate structure and track chain assembly's life.
Drawings
The foregoing and other objects, features, advantages and embodiments of the utility model will be apparent from the following description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of a track link structure according to an embodiment of the present utility model;
FIG. 2 is an exploded view illustrating the track link structure of FIG. 1;
FIG. 3 is a schematic view of a portion of a track chain assembly illustrating an example of another embodiment of the present utility model;
FIG. 4 is a partial schematic view of a track chain assembly illustrating another example of another embodiment of the present utility model;
FIG. 5 is an exploded view illustrating the track link structure of FIG. 4;
FIG. 6 is a partial schematic diagram illustrating a track link structure and track link structure of the track chain assembly of FIG. 4;
FIG. 7 is a schematic view of a portion of a track chain assembly illustrating an example of yet another embodiment of the present utility model;
FIG. 8 is another partial schematic diagram illustrating the track chain assembly of FIG. 7;
FIG. 9 is a further schematic drawing illustrating a portion of the track chain assembly of FIG. 7; and
FIG. 10 is a partially assembled schematic illustration of the track chain assembly of FIG. 7.
[ symbolic description ]
100 track link plate structure
101 outer surface
102 inner surface
103 top surface
110 first body
120 a second body
130 first link plate portion
131 first shaft hole
140 first connecting portion
141 first inclined plane structure
142 first connecting structure
143 holes and grooves
150 second link plate portion
151 second shaft hole
160 second connecting portion
161 second inclined plane structure
162 second connection structure
163 through hole
170 convex structure
180 groove structure
200,400,600 track chain assembly
300,500 track link structure
301,501 external surface
302,502 inner surface
303,503 upper surface
310,531 first through hole
320,551 a second through hole
330,563 through holes
340,580 groove-like structure
410,610 pin set
411,611 pin sleeve
412,612 bolt
510 first link body
520 second link body
530 first link portion
540 first joint
541 first planar structure
542 first combination structure
543 through hole groove
550 second link portion
560 second joint
561 second planar construction
562 second combination structure
570 extending structure
620 track shoe
630 fastener
H11 height of first connecting portion perpendicular to long axis of track link plate structure
H12 height of second connecting portion perpendicular to long axis of track link plate structure
H21 height of first joint perpendicular to long axis of track link structure
H22 height of second joint perpendicular to long axis of track link structure
Hmax1 maximum height of track link plate structure
Hmax2 maximum height of track link structure
L1 long shaft of crawler chain plate structure
L2 Long axis of track Link Structure
Detailed Description
Embodiments of the utility model will be discussed in more detail below. However, this embodiment may be an application of various novel concepts and may be embodied within a wide variety of specific contexts. The particular embodiments are illustrative only and are not limiting to the scope of the disclosure. Moreover, for the purpose of simplifying the figures, some conventional structures and elements are schematically depicted in the figures, and repeated elements may be represented by the same reference numerals.
Referring to fig. 1 and 2, fig. 1 is a schematic diagram illustrating a track chain plate structure 100 according to an embodiment of the utility model, and fig. 2 is an exploded view illustrating the track chain plate structure 100 of fig. 1. The track link plate structure 100 has an outer surface 101 and an inner surface 102, and the track link plate structure 100 includes a first body 110 and a second body 120.
The first body 110 includes a first link plate 130 and a first connecting portion 140. The first link plate portion 130 includes a first shaft hole 131, wherein the first shaft hole 131 is disposed through the first link plate portion 130 from the outer surface 101 toward the inner surface 102 of the track chain plate structure 100, so as to facilitate connection of at least two track chain plate structures 100 to each other. The first connecting portion 140 is integrally connected to the first link plate portion 130, wherein a height H11 of the first connecting portion 140 perpendicular to a long axis L1 of the track chain plate structure 100 is smaller than a maximum height Hmax1 of the track chain plate structure 100, which is beneficial to improving structural stability of the track chain plate structure 100 during use. As shown in fig. 2, the first connecting portion 140 includes a first inclined surface structure 141 and a first connecting structure 142. The first inclined surface structure 141 is disposed on a top surface (not shown) of the first connecting portion 140. The first connection structure 142 is integrally disposed on the first inclined surface structure 141.
The second body 120 includes a second link plate portion 150 and a second connecting portion 160. The second link plate portion 150 includes a second shaft hole 151, wherein the second shaft hole 151 is disposed through the second link plate portion 150 from the outer surface 101 toward the inner surface 102 of the track chain plate structure 100, so as to facilitate connection of at least two track chain plate structures 100 to each other. As shown in fig. 1, the second connecting portion 160 is integrally connected to the second link plate portion 150, wherein a height H12 of the second connecting portion 160 perpendicular to the long axis L1 of the track chain plate structure 100 is smaller than a maximum height Hmax1 of the track chain plate structure 100, which is beneficial to improving structural stability of the track chain plate structure 100 during use. As further shown in fig. 2, the second connecting portion 160 includes a second inclined surface structure 161 and a second connecting structure 162. The second inclined surface structure 161 is disposed on a bottom surface (not shown) of the second connecting portion 160. The second connection structure 162 is integrally disposed on the second inclined surface structure 161.
Specifically, in the track chain plate structure 100, the first inclined surface structure 141 and the second inclined surface structure 161 are both inclined downward from the inner surface 102 to the outer surface 101 of the track chain plate structure 100, and the first inclined surface structure 141 corresponds to the second inclined surface structure 161, so as to facilitate corresponding connection between the first connecting portion 140 and the second connecting portion 160. Therefore, through the structural configuration that the first connecting portion 140 includes the first inclined surface structure 141 and the second connecting portion 160 includes the second inclined surface structure 161, the shaking phenomena such as the relative displacement between the first body 110 and the second body 120 of the track chain plate structure 100 in the use process can be reduced, so as to increase the structural stability of the track chain plate structure 100 and reduce the risk of falling off the track chain.
Furthermore, although not shown, in other embodiments, the first inclined surface structure and the second inclined surface structure may both incline downward from the outer surface of the track chain plate structure toward the inner surface of the track chain plate structure to meet different usage requirements, and the utility model is not limited thereto.
As further shown in fig. 1 and 2, the first connecting portion 140 is correspondingly connected to the second connecting portion 160 to combine the first body 110 with the second body 120 to form the track link structure 100, wherein the first connecting portion 140 is connected to the second connecting portion 160 through the first connecting structure 142 and the second connecting structure 162, and the first connecting structure 142 matches the second connecting structure 162. In detail, in the track link plate structure 100, the first connecting structure 142 is a groove, the second connecting structure 162 is a bump, and when the first connecting portion 140 and the second connecting portion 160 are correspondingly connected, the second connecting structure 162 is clamped in the first connecting structure 142. Therefore, the track chain plate structure 100 comprises the first body 110 and the second body 120, which is beneficial to improving the convenience of the track chain comprising the track chain plate structure 100 in the disassembling process, and the user can separate the track chain by disassembling part of the track chain plate structure 100, so as to facilitate the maintenance of the track-type action machine.
Furthermore, although not shown in the drawings, in other embodiments, the first connection structure may be a bump, and the second connection structure may be a groove, so that the first connection structure may be clamped in the second connection structure when the first connection portion and the second connection portion are correspondingly connected. In addition, the bump may be in a tooth shape, a cylindrical shape, a cube, a triangular pillar, a square pillar, etc. to increase or decrease the friction force between the elements with different shapes, thereby achieving different purposes, but the utility model is not limited thereto.
As further shown in fig. 1, when the first connection portion 140 is correspondingly connected to the second connection portion 160, the height H11 of the first connection portion 140 perpendicular to the long axis L1 of the track chain plate structure 100, the height H12 of the second connection portion 160 perpendicular to the long axis L1 of the track chain plate structure 100, and the maximum height Hmax1 of the track chain plate structure 100 may satisfy the following conditions: H11+H2 is less than or equal to Hmax1. Thereby, the structural stability of the track chain plate structure 100 can be increased, and the contact surface of the track shoe and the track chain plate structure 100 can be tightly attached, so that the possibility of the track chain breaking in the process of operating the track type action machine is reduced. Preferably, it can satisfy the following conditions: h11+h12=hmax1.
As further shown in fig. 2, the first connecting portion 140 may further include two holes 143, and the two holes 143 are formed on the top surface of the first connecting portion 140 separately from each other. The second connection portion 160 may further include two through holes 163, where the two through holes 163 are disposed through the second connection portion 160, and the two through holes 163 are disposed through the second connection portion 160 from the top surface 103 of the second connection portion 160 toward the bottom surface of the second connection portion 160, and the two through holes 163 correspond to the two hole slots 143, respectively. In detail, each hole 143 and each through hole 163 are configured by fasteners (not shown), so that the first connecting portion 140 and the second connecting portion 160 are tightly connected, which is helpful for correspondingly connecting the first body 110 and the second body 120 to form the track chain plate structure 100, and improving the structural stability of the track chain plate structure 100 and the convenience of installing or detaching the track chain plate structure 100.
In other embodiments, each hole groove and each through hole may be provided with an internal thread structure, so that the external thread structure of the fastener may be engaged with the internal thread structures of the hole groove and the through hole, thereby improving the convenience of installing or dismantling the track chain plate structure, but the utility model is not limited thereto. Furthermore, the fastener can be selected from a screw or a bolt, preferably a screw, according to requirements, so that the fastener does not need to be additionally matched with an auxiliary fixing element (such as a nut) for use, and the possibility of loosening the nut caused by environmental factors such as vibration and the like is avoided.
As further shown in fig. 1, the first body 110 may further include a protrusion structure 170 and a recess structure (not shown). The protruding structure 170 is integrally disposed on the first link plate 130, where the protruding structure 170 can be disposed around the first shaft hole 131 and protrude out of the outer surface 101 of the track chain plate structure 100, so as to facilitate improving the structural strength of the first shaft hole 131. The groove structure is concavely disposed on the inner surface 102 of the track chain plate structure 100, and the groove structure may be in communication with the first shaft hole 131. Therefore, the first body 110 includes the configuration of the protruding structure 170 and the recessed structure, which is beneficial to increase the connection stability of the track chain plate structure 100 when being connected by the pin set.
Referring to fig. 3, a schematic diagram of a portion of a track chain assembly 200 according to another embodiment of the utility model is shown. Track chain assembly 200 includes at least two pin sets (not shown), at least one track link structure 100, and at least one track link structure 300. In detail, the track chain assembly 200 can select a desired number of links depending on the actual use situation, and is illustrated only in a schematic way in fig. 3. The connection relationship between the pin group, the track link structure 100, and the track link structure 300 is the same as in fig. 6, 8, and 9, and is not shown in the drawings for simplicity of explanation.
In the track chain assembly 200, the track chain plate structure 100 may be the track chain plate structure 100 of fig. 1, and the details of the same elements are the same, and will not be described herein.
In detail, track link structure 300 includes a first through hole 310 and a second through hole 320. The first through hole 310 is configured to allow a pin of a pin set to be inserted from an outer surface 301 of the track link structure 300. The second through hole 320 is configured for inserting a pin of another pin set from the outer surface 301 of the track link structure 300, and the first through hole 310 and the second through hole 320 are separated from each other.
Specifically, in track chain assembly 200, track link structure 100 is connected to track link structure 300 by a pin set. When inner surface 102 of track link structure 100 and inner surface 302 of track link structure 300 are opposite each other, one set of pins will be able to pass through first throughbore 310 of track link structure 300 from outer surface 101 of track link structure 100 through first shaft bore 131, and another set of pins will be able to pass through second throughbore 320 of track link structure 300 from outer surface 101 of track link structure 100 through second shaft bore 151.
As shown in fig. 3, track link structure 300 may further include two through holes 330. The two through holes 330 are disposed on an upper surface 303 of the track link structure 300 separately, wherein each through hole 330 can provide a fastener (not shown) to fix a track shoe (not shown) to the upper surface 303 of the track link structure 300, and is beneficial to improving convenience of track shoe replacement operation.
Track link structure 300 may also include an extension structure (not shown) and a channel structure 340. The extending structure may be disposed around the first through hole 310 and protrude beyond the outer surface 301 of the track link structure 300, so as to facilitate enhancing the structural strength of the first through hole 310. Groove-like structure 340 is recessed within inner surface 302 of track link structure 300, and groove-like structure 340 may be in communication with first through-hole 310. Thereby, the stability of the connection relationship of track link structure 300 and track link structure 100 is facilitated to be increased. In addition, two ends of the pin bush of a pin set may be respectively accommodated in the groove structure (not shown) of the track link structure 100 and the groove structure 340 of the track link structure 300 to avoid the risk of displacement caused by the pin bush rotation, but the utility model is not limited thereto.
Referring to fig. 4 to 6, fig. 4 is a schematic diagram illustrating a portion of a track chain assembly 400 according to another embodiment of the present utility model, fig. 5 is an exploded view illustrating a track link structure 500 of fig. 4, and fig. 6 is a schematic diagram illustrating a track chain plate structure 100 and a track link structure 500 of the track chain assembly 400 of fig. 4. Track chain assembly 400 includes at least two pin sets 410 (only one pin set 410 is shown in fig. 6), at least one track link structure 100, and at least one track link structure 500. In detail, the track chain assembly 400 may select a desired number of links depending on the actual use situation, and is illustrated only in a schematic way in fig. 4.
In the track chain assembly 400, each pin set 410 includes a pin housing 411 and a pin 412, and one pin 412 is inserted into one pin housing 411, wherein the pin housing 411 may have a hollow cylindrical structure, such that the pin housing 411 can rotate relative to the pin 412. Thus, the latch 412 may be driven to rotate by a force applied to the pin housing 411 to facilitate movement of the track-type mobility implement over the ground.
In the track chain assembly 400, the track chain plate structure 100 may be the track chain plate structure 100 of fig. 1, and the details of the same elements are described with reference to the track chain plate structure 100 of fig. 1, which will not be repeated herein.
As shown in fig. 4-6, track link structure 500 has an outer surface 501 and an inner surface 502, and track link structure 500 includes a first link body 510 and a second link body 520.
The first link body 510 includes a first link portion 530 and a first coupling portion 540. First link portion 530 includes a first through hole 531, wherein first through hole 531 is disposed through first link portion 530 from outer surface 501 to inner surface 502 of track link structure 500, so as to facilitate connection between subsequent track link structure 500 and track link structure 100. First coupling portion 540 is integrally connected to first link portion 530, wherein a height H21 of first coupling portion 540 perpendicular to a long axis L2 of track link structure 500 is less than a maximum height Hmax2 of track link structure 500, which is beneficial for improving structural stability of track link structure 500 during use. As further shown in fig. 5, the first bonding portion 540 includes a first planar structure 541 and a first bonding structure 542. First planar structure 541 is disposed on a top surface (not shown) of first coupling portion 540, wherein first planar structure 541 is parallel to an upper surface 503 of track link structure 500. The first combining structure 542 is integrally disposed on the first planar structure 541.
Second link body 520 includes a second link portion 550 and a second coupling portion 560. Second link portion 550 includes a second through hole 551, wherein second through hole 551 extends through second link portion 550 from outer surface 501 to inner surface 502 of track link structure 500, facilitating coupling of subsequent track link structure 500 and track link structure 100 to each other. As shown in fig. 4, second coupling portion 560 is integrally connected to second link portion 550, wherein a height H22 of second coupling portion 560 perpendicular to long axis L2 of track link structure 500 is less than a maximum height Hmax2 of track link structure 500, which facilitates improving a structural stability of track link structure 500 during use. As further shown in fig. 5, the second bonding portion 560 includes a second planar structure 561 and a second bonding structure 562. The second planar structure 561 is disposed on a bottom surface (not shown) of the second coupling portion 560, wherein the second planar structure 561 is parallel to a lower surface (not shown) of the track link structure 500. The lower surface and the upper surface 503 are parallel to each other. The second combining structure 562 is integrally provided on the second planar structure 561.
Specifically, in the track link structure 500, the first coupling portion 540 is correspondingly connected with the second coupling portion 560 to couple the first link body 510 with the second link body 520 to form the track link structure 500, wherein the first coupling portion 540 is connected with the second coupling portion 560 through the first coupling structure 542 and the second coupling structure 562, and the first coupling structure 542 matches the second coupling structure 562. In the track link structure 500, the first coupling structure 542 may be a groove, the second coupling structure 562 may be a protrusion, and when the first coupling portion 540 is correspondingly connected to the second coupling portion 560, the second coupling structure 562 is clamped in the first coupling structure 542, wherein the first coupling structure 542 and the second coupling structure 562 are similar to the first connecting structure 142 and the second connecting structure 162 of fig. 2 in structure, and the details of the same elements will be omitted herein for brevity. Therefore, the track link structure 500 comprises the structural configuration of the first link main body 510 and the second link main body 520, which is beneficial to improving the convenience of the track chain comprising the track link structure 500 in the disassembling process, and further facilitating the maintenance of the track-type action machine.
Furthermore, although not shown in the drawings, in other embodiments, the first bonding structure may be a bump, and the second bonding structure may be a groove, so that the first bonding structure may be clamped in the second bonding structure when the first bonding portion and the second bonding portion are correspondingly connected, but the utility model is not limited thereto.
As further shown in fig. 4 and 6, in track chain assembly 400, track link structure 100 is connected to track link structure 500 by pin set 410. In detail, when the inner surface 102 of the track link structure 100 and the inner surface 502 of the track link structure 500 are opposite to each other, one pin set 410 is disposed through the first through hole 531 of the track link structure 500 from the outer surface 101 of the track link structure 100 through the first shaft hole 131, and the other pin set 410 is disposed through the second through hole 551 of the track link structure 500 from the outer surface 101 of the track link structure 100 through the second shaft hole 151. As shown in fig. 6, when the track chain plate structure 100 is connected with the track link structure 500, the first inclined plane structure 141 presents an arrangement in which the inclined planes are parallel to the plane corresponding to the first plane structure 541, so that the track chain assembly 400 can be beneficial to reducing the shaking phenomena such as relative displacement of the track chain plate structure 100 and the track link structure 500 due to the influence of external force, and further improving the structural strength and the use safety of the track chain assembly 400.
As further shown in fig. 4, when the first coupling portion 540 is correspondingly connected to the second coupling portion 560, the height H21 of the first coupling portion 540 perpendicular to the long axis L2 of the track link structure 500, the height H22 of the second coupling portion 560 perpendicular to the long axis L2 of the track link structure 500, and the maximum height Hmax2 of the track link structure 500 may satisfy the following conditions: H21+H2 is less than or equal to Hmax2. Thereby, structural stability of track link structure 500 may be increased and the surface of the track shoe in contact with track link structure 500 may be brought into close proximity to reduce the likelihood of track chain assembly 400 breaking during operation of the track-type mobile implement. Preferably, it can satisfy the following conditions: h21+h22=hmax2, which allows a top surface (not shown) of the second engaging portion 560 to be flush with the upper surface 503 of the track link structure 500, thereby facilitating the installation of the track shoe.
In addition, when the maximum height Hmax1 of the track chain plate structure 100 is equal to the maximum height Hmax2 of the track link structure 500, the track shoe can be combined with the track chain plate structure 100 and the track link structure 500, and no height drop can occur at different parts of the track shoe relative to the track chain assembly 400, so that the use safety of the track chain assembly 400 is improved.
As further shown in fig. 5, the first coupling portion 540 may further include two through-hole slots 543, where the two through-hole slots 543 are separately formed on the top surface of the first coupling portion 540. The second coupling portion 560 may further include two through holes 563, the through holes 563 are disposed through the second coupling portion 560, wherein the two through holes 563 are disposed through the second coupling portion 560 from the top surface of the second coupling portion 560 toward the bottom surface of the second coupling portion 560, and the through holes 563 correspond to the two through hole grooves 543, respectively.
In addition, the through-hole slots 543, 563 are similar in structure to the through-hole slots 143, 163 of fig. 2, and refer to the track chain plate structure 100 of fig. 2 for details of the same elements, which will not be described herein.
As further shown in fig. 4 and 5, the first link body 510 may further include an extension structure 570 and a slot structure 580. The extending structure 570 may be disposed around the first through hole 531 and protrude from the outer surface 501 of the track link structure 500, so as to facilitate the improvement of the structural strength of the first through hole 531. Groove-like structure 580 is recessed within inner surface 502 of track link structure 500, and groove-like structure 580 may communicate with first through-hole 531. Thus, the configuration of first link body 510 including extension structure 570 and channel structure 580 facilitates increasing the stability of the connection between track link structure 500 and track link structure 100.
Referring to fig. 7 to 10, fig. 7 is a schematic view of a portion of a track chain assembly 600 according to another embodiment of the present utility model, fig. 8 is another schematic view of the track chain assembly 600 of fig. 7, fig. 9 is a schematic view of a portion of the track chain assembly 600 of fig. 7, and fig. 10 is a schematic view of a portion of the track chain assembly 600 of fig. 7. Track chain assembly 600 includes at least two pin sets 610 (only one pin set 610 is shown in fig. 8 and 9) and at least two track chain plate structures 100. In detail, the track chain assembly 600 may select a desired number of links depending on the actual use situation, and is illustrated only in one or two-link schematic in fig. 7-10.
As shown in fig. 8, each pin set 610 of the track chain assembly 600 includes a pin sleeve 611 and a pin 612, and one pin 612 is inserted into one pin sleeve 611, wherein the pin sleeve 611 may have a hollow cylindrical structure, such that the pin sleeve 611 may rotate relative to the pin 612. Thereby, the latch 612 may be driven to rotate by a force applied to the pin sleeve 611 to facilitate movement of the tracked running tool on the ground.
In the track chain assembly 600, each track chain plate structure 100 may be the track chain plate structure 100 of fig. 1, and the details of the same elements are described with reference to the track chain plate structure 100 of fig. 1, which will not be repeated herein.
As shown in fig. 7, in the track chain assembly 600, when the inner surfaces 102 of the two track chain plate structures 100 are opposite to each other, the first slope structure 141 of one track chain plate structure 100 may slope downward from the inner surface 102 of the one track chain plate structure 100 toward the outer surface 101 of the one track chain plate structure 100, and the first slope structure 141 of the other track chain plate structure 100 may slope downward from the inner surface 102 of the other track chain plate structure 100 toward the outer surface 101 of the other track chain plate structure 100, such that the two first slope structures 141 correspondingly assume a splayed structural configuration in the track chain assembly 600. Thereby, the structural stability of the track chain assembly 600 is improved, and the risk of deformation and fracture of the fastener due to shaking phenomena such as relative displacement between the first body 110 and the second body 120 of the two track chain plate structures 100 during the operation of the track-type running machine can be avoided. Furthermore, an inclination angle of the first inclined surface structure 141 of the track chain plate structure 100 may be the same as an inclination angle of the first inclined surface structure 141 of the other track chain plate structure 100, so that the first connection structures 142 of the track chain plate structures 100 are stressed equally, and the stresses applied by the first connection structures can be offset when the first connection structures are subjected to external forces, thereby being beneficial to further increasing the structural stability of the track chain assembly 600, but the utility model is not limited thereto.
In addition, the first connection structure 142 of the one track chain plate structure 100 may be a groove, the second connection structure 162 of the one track chain plate structure 100 may be a bump, the first connection structure 142 of the other track chain plate structure 100 may be a groove, and the second connection structure 162 of the other track chain plate structure 100 may be a bump. Thereby, the internal stress of the track chain structure 100 is advantageously concentrated on the first connection structure 142 to reduce the risk of the first body 110 breaking away from the second body 120 during use of the track chain assembly 600.
Specifically, one track chain plate structure 100 is connected to another track chain plate structure 100 by pin set 610. When the inner surfaces 102 of the two track chain plate structures 100 are opposite to each other, two ends of the pin sleeve 611 of the pin group 610 are respectively accommodated in the groove structure 180 of the track chain plate structure 100 and the groove structure 180 of the other track chain plate structure 100, and the pin 612 of the pin group 610 passes through the first shaft hole 131 of the one track chain plate structure 100 from the outer surface 101 of the one track chain plate structure 100 and then passes through the first shaft hole 131 of the other track chain plate structure 100. Two ends of the pin bush 611 of the other pin group 610 are respectively inserted into the second axle hole 151 of the one track chain plate structure 100 and the second axle hole 151 of the other track chain plate structure 100, and the pin 612 of the other pin group 610 is inserted into the second axle hole 151 of the other track chain plate structure 100 after passing through the second axle hole 151 of the one track chain plate structure 100 from the outer surface 101 of the one track chain plate structure 100.
Referring again to FIG. 9, a pin set 610 may connect four track chain plate structures 100 together. Specifically, the inner surface 102 of one track link plate structure 100 and the outer surface 101 of the other track link plate structure 100 are opposite each other, and the first axle hole 131 of the one track link plate structure 100 is aligned with the second axle hole 151 of the other track link plate structure 100. When one end of the pin bush 611 passes through the second shaft hole 151 of the other track chain plate structure 100 and is then accommodated in the groove structure 180 of the one track chain plate structure 100, and the other end of the pin bush 611 passes through the second shaft hole 151 of the other track chain plate structure 100 and is then accommodated in the groove structure 180 of the other track chain plate structure 100, the pin 612 can pass through the pin bush 611 from the outer surface 101 of the one track chain plate structure 100 and then connect the four track chain plate structures 100 together, so that a plurality of track chain plate structures 100 can be connected in series to form a track chain assembly 600.
As further shown in fig. 10, the track chain assembly 600 may further include at least one track shoe 620 and at least two fasteners 630, and in the embodiment of fig. 10, the number of fasteners 630 is four, the track shoe 620 includes four mounting holes (not shown), and the track shoe 620 is disposed on the top surfaces (not shown) of the two track chain structures 100 by the fasteners 630. Specifically, the fasteners 630 pass through the mounting holes of the track plate 620 and then sequentially enter the through holes 163 of the second connection portion 160 and the hole slots 143 of the first connection portion 140, so that the track plate 620 is firmly combined with the track chain plate structure 100, and the fasteners 630 further fasten the first connection portion 140 and the second connection portion 160 of the track chain plate structure 100 together.
In summary, the track chain plate structure and the track chain assembly of the present utility model have the following advantages. First, contain the structural configuration of first main part and second main part through the track chain plate structure, be favorable to promoting the convenience of track chain assembly in the dismantlement in-process to can reduce and eliminate the cost of changing. Secondly, through the first inclined plane structure of at least two track chain plate structures from the surface downward sloping of the surface inwards of track chain plate structure or from the internal surface downward sloping of track chain plate structure configuration of surface outwards, be favorable to promoting track chain assembly's structural stability to can reduce when operating crawler-type action machines, take place the relative displacement and wait to rock phenomenon and cause fastener deformation and cracked risk between first main part and the second main part, and then extension track chain plate structure and track chain assembly's life. Thirdly, through the first inclined plane structure and the second inclined plane structure of at least two track chain plate structures, the structure configuration that the inner surface of the track chain plate structure is inclined downwards towards the outer surface can further promote the structural stability of track chain assembly to avoid leading to the fact fastener deformation and cracked risk because of taking place relative displacement etc. and rocking phenomenon between first main part and the second main part, be favorable to prolonging track chain plate structure and track chain assembly's life. Fourth, through the structural configuration that track chain plate structure contains through-hole and hole groove, can make the fastener set up wherein directly, need not additionally to use auxiliary fixing element.
While the present utility model has been described with reference to the embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model, and it is intended that the utility model be limited only by the appended claims.

Claims (19)

1. A track link plate structure having an outer surface and an inner surface, the track link plate structure comprising:
a first body comprising:
a first link plate portion including a first shaft hole; a kind of electronic device with high-pressure air-conditioning system
The first connecting part is integrally connected with the first chain plate part, wherein the height of the first connecting part perpendicular to a long axis of the track chain plate structure is smaller than the maximum height of the track chain plate structure, and the first connecting part comprises:
the first inclined surface structure is arranged on the top surface of the first connecting part; a kind of electronic device with high-pressure air-conditioning system
The first connecting structure is integrally arranged on the first inclined surface structure; and
a second body comprising:
a second link plate portion including a second axial hole; a kind of electronic device with high-pressure air-conditioning system
The second connecting part is integrally connected with the second chain plate part, wherein the height of the second connecting part perpendicular to the long axis of the track chain plate structure is smaller than the maximum height of the track chain plate structure, and the second connecting part comprises:
The second inclined surface structure is arranged on the bottom surface of the second connecting part; a kind of electronic device with high-pressure air-conditioning system
The second connecting structure is integrally arranged on the second inclined surface structure;
wherein the first ramp structure slopes downward from the outer surface toward the inner surface or slopes downward from the inner surface toward the outer surface, and the second ramp structure slopes downward from the outer surface toward the inner surface or slopes downward from the inner surface toward the outer surface;
the first connecting part and the second connecting part are correspondingly connected so that the first main body and the second main body are combined to form the track chain plate structure, the first inclined surface structure corresponds to the second inclined surface structure, and the first connecting structure is matched with the second connecting structure.
2. The track link structure of claim 1, wherein when the first connection portion is correspondingly connected to the second connection portion, the height of the first connection portion perpendicular to the long axis of the track link structure is H11, the height of the second connection portion perpendicular to the long axis of the track link structure is H12, and the maximum height of the track link structure is Hmax1, which satisfies the following condition:
H11+H12≤Hmax1。
3. the track link plate structure of claim 1 wherein the first connection structure is a recess and the second connection structure is a bump, the second connection structure being engaged with the first connection structure when the first connection portion is correspondingly connected with the second connection portion.
4. The track link plate structure of claim 1 wherein the first connection structure is a bump and the second connection structure is a groove, the first connection structure being engaged with the second connection structure when the first connection portion is correspondingly connected with the second connection portion.
5. The track link plate structure of claim 1 wherein:
the first connecting part also comprises two hole slots which are arranged on the top surface of the first connecting part in a separated way; and
the second connecting part also comprises two through holes which are penetrated through the second connecting part and respectively correspond to the two hole grooves.
6. The track link structure of claim 1, wherein the first body further comprises:
the protruding structure is integrally arranged on the first chain plate part, and the protruding structure is arranged outside the first shaft hole in a surrounding way and protrudes out of the outer surface.
7. The track link structure of claim 6, wherein the first body further comprises:
and the groove structure is concavely arranged on the inner surface and communicated with the first shaft hole.
8. The track link structure of claim 1 wherein the first ramp structure slopes downwardly from the inner surface toward the outer surface and the second ramp structure slopes downwardly from the inner surface toward the outer surface.
9. A track chain assembly, comprising:
at least two pin sets, each pin set comprises a pin sleeve and a bolt, and one bolt is inserted into one pin sleeve;
at least one track link plate structure as claimed in any one of claims 1 to 8; and
at least one track link structure, the track link structure comprising:
the first through hole is used for inserting the bolt of the pin group from an outer surface of the crawler belt link structure; a kind of electronic device with high-pressure air-conditioning system
A second through hole for inserting the bolt of the other pin set from the outer surface of the track link structure, wherein the first through hole and the second through hole are separated from each other;
the pin group penetrates through the first through hole of the track link structure after penetrating through the first shaft hole from the outer surface of the track link structure, and the other pin group penetrates through the second through hole of the track link structure after penetrating through the second shaft hole from the outer surface of the track link structure.
10. The track chain assembly of claim 9, wherein the track link structure further comprises:
a first link body comprising:
the first through hole is arranged on the first chain link part; a kind of electronic device with high-pressure air-conditioning system
The first combining part is integrally connected with the first chain link part, wherein the height of the first combining part perpendicular to a long axis of the track chain link structure is smaller than the maximum height of the track chain link structure, and the first combining part comprises:
the first plane structure is arranged on the top surface of the first combining part, and is parallel to the upper surface of the track link structure; a kind of electronic device with high-pressure air-conditioning system
The first combining structure is integrally arranged on the first plane structure; and
a second link body comprising:
the second through hole is arranged on the second chain link part; a kind of electronic device with high-pressure air-conditioning system
A second joint integrally connected to the second link, wherein the second joint has a height perpendicular to the long axis of the track link structure that is less than a maximum height of the track link structure, and the second joint comprises:
the second plane structure is arranged on a bottom surface of the second combining part, and is parallel to a lower surface of the track link structure; a kind of electronic device with high-pressure air-conditioning system
The second combining structure is integrally arranged on the second plane structure;
the first combining part and the second combining part are correspondingly connected so that the first link main body and the second link main body are combined to form the track link structure, and the first combining structure is matched with the second combining structure.
11. The track chain assembly of claim 10, wherein when the first joint is correspondingly connected to the second joint, the first joint has a height H21 perpendicular to the long axis of the track link structure, the second joint has a height H22 perpendicular to the long axis of the track link structure, and the track link structure has a maximum height Hmax2 that satisfies the following condition:
H21+H22≤Hmax2。
12. the track chain assembly of claim 10, wherein the first engaging structure is a groove, the second engaging structure is a protrusion, and the second engaging structure is engaged with the first engaging structure when the first engaging portion is correspondingly connected to the second engaging portion.
13. The track chain assembly of claim 10, wherein the first engaging structure is a protrusion and the second engaging structure is a recess, and the first engaging structure is engaged with the second engaging structure when the first engaging portion is correspondingly connected to the second engaging portion.
14. The track chain assembly of claim 10, wherein:
the first combining part also comprises two through hole grooves which are arranged on the top surface of the first combining part in a separated way; and
The second combining part also comprises two through holes which are penetrated in the second combining part and respectively correspond to the two through hole grooves.
15. The track chain assembly of claim 9, wherein the track link structure further comprises:
the extending structure is arranged outside the first through hole in a surrounding way and protrudes out of the outer surface of the crawler belt link structure.
16. The track chain assembly of claim 15, wherein the track link structure further comprises:
the groove-shaped structure is concavely arranged on an inner surface of the track chain link structure and communicated with the first through hole.
17. A track chain assembly, comprising:
at least two pin sets, each pin set comprises a pin sleeve and a bolt, and one bolt is inserted into one pin sleeve; and
at least two track link plate structures as claimed in any one of claims 1 to 8;
one of the pin groups penetrates through the first shaft hole of the other track chain plate structure from the outer surface of the track chain plate structure and penetrates through the first shaft hole of the other track chain plate structure, and the other pin group penetrates through the second shaft hole of the other track chain plate structure from the outer surface of the track chain plate structure and penetrates through the second shaft hole of the other track chain plate structure.
18. The track chain assembly of claim 17, wherein the first ramp structure of the one track chain plate structure slopes downwardly from the inner surface toward the outer surface, and the first ramp structure of the other track chain plate structure slopes downwardly from the inner surface toward the outer surface.
19. The track chain assembly of claim 18, wherein an angle of inclination of the first incline structure of the one track chain plate structure is the same as an angle of inclination of the first incline structure of the other track chain plate structure.
CN202320965285.7U 2023-04-25 2023-04-25 Track chain plate structure and track chain assembly Active CN220114712U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320965285.7U CN220114712U (en) 2023-04-25 2023-04-25 Track chain plate structure and track chain assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320965285.7U CN220114712U (en) 2023-04-25 2023-04-25 Track chain plate structure and track chain assembly

Publications (1)

Publication Number Publication Date
CN220114712U true CN220114712U (en) 2023-12-01

Family

ID=88913915

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320965285.7U Active CN220114712U (en) 2023-04-25 2023-04-25 Track chain plate structure and track chain assembly

Country Status (1)

Country Link
CN (1) CN220114712U (en)

Similar Documents

Publication Publication Date Title
US6695087B2 (en) Snowmobile engine mount
US7614709B2 (en) Tapered master link design for tracked undercarriage
CN1274917C (en) Wear assembly
US8136825B2 (en) Tubular axle beam suspension mount
CN220114712U (en) Track chain plate structure and track chain assembly
CN102439256A (en) Hydraulic breaker
CN101403589A (en) Track shoe assembly for medium tracked vehicle
WO1981000544A1 (en) Chain with mid-pitch drive and replaceable bushing
CN101403590A (en) Track shoe assembly for light tracked vehicle
CN114616111A (en) Center link for an articulated truck suspension mount
TWM654252U (en) Track link structure and track link assembly
CN111810602A (en) Rope chain combined self-balancing transmission device
CN210235139U (en) Stable and convenient-to-replace crawler shoe
CN211737664U (en) Expansion sleeve structure for coal mining machine
CN210235132U (en) Crawler assembly unit and crawler assembly
CN104047991B (en) Antihunting device
CN102991465A (en) Wiper part-fixed device and wiper device
CN2808340Y (en) Unilateral quick fastening arrangement of vibrating screen
CN220346512U (en) Vibration exciter fixing structure
KR20040081576A (en) detachable guide center assembly for track
KR19980064370U (en) Suspension lower arm assembly of vehicle
CA2557935A1 (en) Track shoe assembly for tracked vehicle
KR200153898Y1 (en) A buffer device of impact motion tool
CN214057748U (en) Crawler device, traveling mechanism and operating equipment
CN218509871U (en) Steel member reinforcing combination seat

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant