Probe wheel support of steel rail ultrasonic flaw detector
阅读说明:本技术 一种钢轨超声波探伤仪探轮支架 (Probe wheel support of steel rail ultrasonic flaw detector ) 是由 刘振楠 周新航 路纪亚 姜汉超 雷刚 于 2019-10-23 设计创作,主要内容包括:本发明涉及一种钢轨超声波探伤仪探轮支架,包括:连接探伤仪车架的外框架,外框架上安装有导向轮组;内框架,通过螺纹调节件安装在外框架上方;摆角调节机构,摆角调节机构与所述内框架横向可滑动连接,摆角调节机构驱动端与探轮组连接并调整探轮组相对于钢轨横向中心面的偏转角度;横向调节机构,横向调节机构横向限位在导向轮组上并能够相对所述导向轮组竖向移动,横向调节机构驱动端与摆角调节机构连接并驱动摆角调节机构带动探轮组沿所述内框架横向移动;其中,拧动螺纹调节件调整内框架、摆角调节机构、横向调节机构以及探轮组的竖向位移量,实现探轮组相对于钢轨踏面下压量的调节,下压量调整到位后,将横向调节机构与导向轮组锁紧固定。(The invention relates to a probe wheel bracket of a steel rail ultrasonic flaw detector, which comprises: the outer frame is connected with the flaw detector frame and is provided with a guide wheel set; the inner frame is arranged above the outer frame through a threaded adjusting piece; the swing angle adjusting mechanism is transversely and slidably connected with the inner frame, and a driving end of the swing angle adjusting mechanism is connected with the detection wheel set and adjusts the deflection angle of the detection wheel set relative to the transverse central plane of the steel rail; the driving end of the transverse adjusting mechanism is connected with the swing angle adjusting mechanism and drives the swing angle adjusting mechanism to drive the probe wheel set to transversely move along the inner frame; wherein, twist and move the vertical displacement volume of screw thread adjusting part adjustment inner frame, pivot angle adjustment mechanism, horizontal adjustment mechanism and spy wheelset, realize spy wheelset for the regulation of rail tread pushing down the volume, after pushing down the volume adjustment and targetting in place, with horizontal adjustment mechanism and direction wheelset locking fixed.)
1. The utility model provides a rail ultrasonic flaw detector surveys wheel support which characterized in that includes:
the outer frame is connected with the flaw detector frame, and a guide wheel set is arranged on the outer frame;
an inner frame mounted over the outer frame by a threaded adjustment;
the swing angle adjusting mechanism is transversely and slidably connected with the inner frame, and a driving end of the swing angle adjusting mechanism is connected with the detection wheel set and adjusts the deflection angle of the detection wheel set relative to the transverse central plane of the steel rail;
the transverse adjusting mechanism is transversely limited on the guide wheel set and can vertically move relative to the guide wheel set, and a driving end of the transverse adjusting mechanism is connected with the swing angle adjusting mechanism and drives the swing angle adjusting mechanism to drive the probe wheel set to transversely move along the inner frame;
wherein, twist and move the vertical displacement volume of screw thread adjusting part adjustment inner frame, pivot angle adjustment mechanism, horizontal adjustment mechanism and spy wheelset, realize spy wheelset for the regulation of rail tread pushing down the volume, after pushing down the volume adjustment and targetting in place, with horizontal adjustment mechanism and direction wheelset locking fixed.
2. A rail ultrasonic flaw detector probe wheel carriage according to claim 1 in which the lateral adjustment mechanism includes:
the transverse motor connecting plate is positioned on one side of the detection wheel set;
the transverse motor is transversely arranged on the transverse motor connecting plate, and the driving end of the transverse motor is connected with the swing angle adjusting mechanism;
the guide column I is installed on the transverse motor connecting plate, a sliding sleeve I is arranged on the guide wheel set, and the guide column I can be vertically and slidably arranged in the sliding sleeve I;
in the process of adjusting the pressing amount, the first guide column vertically slides in the first sliding sleeve, and after the pressing amount is adjusted in place, the transverse motor connecting plate is locked and fixed with the guide wheel set.
3. The probe wheel bracket of the steel rail ultrasonic flaw detector according to claim 2, wherein a second transversely-arranged guide post is arranged on the transverse motor connecting plate, a second sliding sleeve is arranged on the swing angle adjusting mechanism, and the second guide post is arranged in the second sliding sleeve in a transversely-sliding manner.
4. The probe wheel bracket of a rail ultrasonic flaw detector according to claim 2, wherein the number of the guide wheel sets is two and is respectively located at the front side and the rear side of the probe wheel set, and the first guide posts are respectively arranged at two ends of the transverse motor connecting plate.
5. The probe wheel bracket of the steel rail ultrasonic flaw detector according to claim 2, wherein the outer frame is provided with a guide shaft which is transversely arranged, and the guide wheel set is rotatably connected to the guide shaft and can axially move along the guide shaft;
the guide wheel set comprises a guide wheel, a shaft sleeve and a connecting frame, the guide wheel is rotatably connected onto the shaft sleeve, the shaft sleeve is sleeved on the guide shaft and can axially slide along the guide shaft, the connecting frame is installed on the shaft sleeve, and the first sliding sleeve is arranged on one side, close to the transverse adjusting mechanism, of the connecting frame; and after the pressing amount is adjusted to the proper position, the transverse motor connecting plate is locked and fixed with the connecting frame.
6. The probe wheel bracket of a rail ultrasonic flaw detector according to claim 5, wherein one end of the shaft sleeve near the transverse motor connecting plate is connected with guide blocks respectively arranged in front of and behind the guide wheel, the guide wheel is provided with a friction ring arranged on the same side as the guide block, and a brush assembly is mounted on the guide block on the front side of the guide wheel; and a transversely arranged extension spring is connected between the outer frame and the connecting frame and is positioned on one side of the shaft sleeve, which is far away from the transverse motor connecting plate.
7. The probe wheel support of a rail ultrasonic flaw detector according to any one of claims 1 to 6, wherein the pivot angle adjusting mechanism includes:
the swing angle motor connecting frame is positioned on one side of the detection wheel group, and the driving end of the transverse adjusting mechanism is connected with the swing angle motor connecting frame;
the two connecting plates are respectively positioned at the front side and the rear side of the detection wheel set, sliding blocks are arranged on the connecting plates, transversely-arranged guide rails are arranged on the inner frame, and the sliding blocks are in sliding fit with the guide rails;
the swing angle motor is arranged on the swing angle motor connecting frame;
the driving end of the swing angle motor is connected with the upper end of the detection wheel set and drives the detection wheel set to deflect a certain angle relative to the transverse central plane of the steel rail.
8. The probe wheel bracket of the ultrasonic flaw detector for steel rails according to claim 7, wherein the lower ends of the connecting plates at the two sides of the probe wheel set are respectively connected with a nozzle assembly.
9. The probe wheel bracket of the steel rail ultrasonic flaw detector according to any one of claims 1 to 6 and 7, wherein a vertically arranged spring pin is mounted on the inner frame, a limit groove is formed in the swing angle adjusting mechanism at a position corresponding to the lower end of the spring pin, and a roller collision block assembly is mounted on the outer side of the limit groove; when the swing angle adjusting mechanism is assembled, the swing angle adjusting mechanism is pushed to slide along the inner frame, the roller on the roller collision block assembly extrudes the button of the spring pin, the pin head of the spring pin is arranged in the limiting groove, and the assembly locking of the swing angle adjusting mechanism and the probe wheel group is realized.
10. A probe wheel support of a steel rail ultrasonic flaw detector according to any one of claims 1 to 6 and 7, wherein a third guide post is arranged on the outer frame, a guide hole is arranged on the inner frame, the inner frame is mounted on the outer frame through the guide fit of the guide hole and the third guide post, and a fastening nut is connected to the third guide post.
Technical Field
The invention relates to a probe wheel bracket of a steel rail ultrasonic flaw detector, belonging to the technical field of steel rail ultrasonic flaw detection.
Background
At present, the ultrasonic probe wheel is widely used in a steel rail flaw detector. According to the requirement of ultrasonic flaw detection of the steel rail, the probe wheel must keep a certain pressing amount and a certain angle on the top surface of the steel rail during working. However, since the gauge of the rail is changed frequently, if the probe wheel is simply fixed on the ultrasonic flaw detector for the rail, the probe wheel will deviate from the preset flaw detection position along with the change of the gauge in the flaw detection process of the ultrasonic flaw detector for the rail.
At present, a follow-up structure of a probe wheel bracket is relatively complex, and installation and later maintenance are troublesome. The position adjusting function of the probe wheel is mainly transverse adjustment and angle adjustment, the adjusting function of the pushing amount is weakened, the adjusting structure of the pushing amount is complex, and installation and later maintenance are troublesome.
Disclosure of Invention
The invention aims to solve the technical problems that the conventional follow-up structure is complex, the whole adjusting structure is not matched tightly enough, and the installation and later maintenance are troublesome.
The technical scheme for solving the technical problems is as follows: a probe wheel bracket of a steel rail ultrasonic flaw detector comprises:
the outer frame is connected with the flaw detector frame, and a guide wheel set is arranged on the outer frame;
an inner frame mounted over the outer frame by a threaded adjustment;
the swing angle adjusting mechanism is transversely and slidably connected with the inner frame, and a driving end of the swing angle adjusting mechanism is connected with the detection wheel set and adjusts the deflection angle of the detection wheel set relative to the transverse central plane of the steel rail;
the transverse adjusting mechanism is transversely limited on the guide wheel set and can vertically move relative to the guide wheel set, and a driving end of the transverse adjusting mechanism is connected with the swing angle adjusting mechanism and drives the swing angle adjusting mechanism to drive the probe wheel set to transversely move along the inner frame;
wherein, twist and move the vertical displacement volume of screw thread adjusting part adjustment inner frame, pivot angle adjustment mechanism, horizontal adjustment mechanism and spy wheelset, realize spy wheelset for the regulation of rail tread pushing down the volume, after pushing down the volume adjustment and targetting in place, with horizontal adjustment mechanism and direction wheelset locking fixed.
The invention has the beneficial effects that: according to the invention, the inner frame is arranged above the outer frame through the thread adjusting part, the vertical displacement of the inner frame, the swing angle adjusting mechanism, the transverse adjusting mechanism and the probe wheel set arranged on the inner frame are adjusted by screwing the thread adjusting part, so that the adjustment of the downward pressing amount of the probe wheel set relative to the tread of the steel rail is realized, the downward pressing amount is prevented from changing by locking and fixing after the adjustment, the structure is simple and easy to realize, and the operation and the later maintenance are convenient; before the flaw detector runs, the swing angle adjusting mechanism and the transverse adjusting mechanism are utilized to adjust the probe wheel set to a preset flaw detection position, and after the flaw detector runs, the transverse adjusting mechanism is matched with the guide wheel set to realize the follow-up function of the probe wheel set and the guide wheel set, so that the probe wheel set is always positioned at the preset position of the central axis surface of the steel rail along with the change of the inner side surface of the steel rail.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the lateral adjustment mechanism includes:
the transverse motor connecting plate is positioned on one side of the detection wheel set;
the transverse motor is transversely arranged on the transverse motor connecting plate, and the driving end of the transverse motor is connected with the swing angle adjusting mechanism;
the guide column I is installed on the transverse motor connecting plate, a sliding sleeve I is arranged on the guide wheel set, and the guide column I can be vertically and slidably arranged in the sliding sleeve I;
in the process of adjusting the pressing amount, the first guide column vertically slides in the first sliding sleeve, and after the pressing amount is adjusted in place, the transverse motor connecting plate is locked and fixed with the guide wheel set.
The beneficial effect of adopting the further scheme is that: the transverse motor connecting plate is arranged on one side of the probe wheel set, so that the transverse motor can be conveniently arranged, the transverse motor connecting plate can be conveniently matched with the first sliding sleeve and the locking structure on the guide wheel set, and the transverse motor connecting plate and the transverse motor on the transverse motor connecting plate can realize follow-up with the guide wheel set after the pressing amount is adjusted in place.
Furthermore, a second transversely-arranged guide post is arranged on the transverse motor connecting plate, a second sliding sleeve is arranged on the swing angle adjusting mechanism, and the second guide post can be arranged in the second sliding sleeve in a transverse sliding mode.
The beneficial effect of adopting the further scheme is that: and a second guide post is arranged on the transverse motor connecting plate, so that the transverse motor can enable the swing angle adjusting mechanism to move transversely stably in the transverse adjustment process, and the deviation is prevented.
Furthermore, the guide wheel sets are two and are respectively located the front side and the rear side of the detection wheel set, and the two ends of the transverse motor connecting plate are respectively provided with the first guide posts.
The beneficial effect of adopting the further scheme is that: carry out spacing fixed with two direction wheelsets respectively with horizontal motor connecting plate both ends, make horizontal adjustment mechanism's connection more stable, drive pivot angle adjustment mechanism and last spy wheelset lateral shifting more steady.
Furthermore, a guide shaft which is transversely arranged is arranged on the outer frame, and the guide wheel set is rotatably connected to the guide shaft and can axially move along the guide shaft;
the guide wheel set comprises a guide wheel, a shaft sleeve and a connecting frame, the guide wheel is rotatably connected onto the shaft sleeve, the shaft sleeve is sleeved on the guide shaft and can axially slide along the guide shaft, the connecting frame is installed on the shaft sleeve, and the first sliding sleeve is arranged on one side, close to the transverse adjusting mechanism, of the connecting frame; and after the pressing amount is adjusted to the proper position, the transverse motor connecting plate is locked and fixed with the connecting frame.
The beneficial effect of adopting the further scheme is that: the guide wheel group can rotate on the guide shaft, can also move along the axial direction of the guide shaft, and is connected with the transverse adjusting mechanism in a matching way by utilizing the connecting frame, and the connecting frame provides support for the guide wheel and does not influence the rotation of the guide wheel.
Furthermore, one end of the shaft sleeve, which is close to the transverse motor connecting plate, is connected with guide blocks which are respectively arranged in front of and behind the guide wheel, the guide wheel is provided with a friction ring which is arranged at the same side as the guide blocks, and a brush assembly is arranged on the guide block which is positioned at the front side of the guide wheel; and a transversely arranged extension spring is connected between the outer frame and the connecting frame and is positioned on one side of the shaft sleeve, which is far away from the transverse motor connecting plate.
The beneficial effect of adopting the further scheme is that: the friction ring is made of wear-resistant materials, so that the problem that the whole guide wheel is frequently replaced due to too fast abrasion of the rim of the guide wheel is solved; the guide block structure on the outer side and the two sides of the guide wheel is adopted, so that the turnout is more reliable when the turnout core is reversely entered; the tension spring structure is adopted, the sliding shaft is not required to be sleeved with the tension spring, and the installation and the disassembly are more convenient.
Further, the swing angle adjusting mechanism includes:
the swing angle motor connecting frame is positioned on one side of the detection wheel group, and the driving end of the transverse adjusting mechanism is connected with the swing angle motor connecting frame;
the two connecting plates are respectively positioned at the front side and the rear side of the detection wheel set, sliding blocks are arranged on the connecting plates, transversely-arranged guide rails are arranged on the inner frame, and the sliding blocks are in sliding fit with the guide rails;
the swing angle motor is arranged on the swing angle motor connecting frame;
the driving end of the swing angle motor is connected with the upper end of the detection wheel set and drives the detection wheel set to deflect a certain angle relative to the transverse central plane of the steel rail.
The beneficial effect of adopting the further scheme is that: when the swing angle motor is driven, the swing angle motor can drive the probe wheel set to rotate between the two connecting plates, so that the aim of adjusting the angle of the probe wheel is fulfilled.
Furthermore, the lower ends of the connecting plates positioned on two sides of the probe wheel set are respectively connected with a spray head assembly.
The beneficial effect of adopting the further scheme is that: when a water pipe on the flaw detector is inserted into the water pipe quick-connection connector, a water pump on the flaw detector is driven, and the coupling liquid can be sprayed to the preset position on the surface of the steel rail head through the spray head assembly.
Further, a vertically arranged spring pin is mounted on the inner frame, a limiting groove is formed in the position, corresponding to the lower end of the spring pin, of the swing angle adjusting mechanism, and a roller collision block assembly is mounted on the outer side of the limiting groove; when the swing angle adjusting mechanism is assembled, the swing angle adjusting mechanism is pushed to slide along the inner frame, the roller on the roller collision block assembly extrudes the button of the spring pin, the pin head of the spring pin is arranged in the limiting groove, and the assembly locking of the swing angle adjusting mechanism and the probe wheel group is realized.
The beneficial effect of adopting the further scheme is that: the spring pin is matched with the roller anti-collision block assembly, when the swing angle adjusting mechanism is assembled, the pin head of the spring pin is arranged in the limiting groove, the swing angle adjusting mechanism, the probe wheel set, the transverse adjusting mechanism and the guide wheel set are integrally limited at preset positions, after the probe wheel bracket is integrally fixed on a flaw detector car body, a gap is reserved between the guide block on the guide wheel set and the inner side surface of the rail head of the steel rail, the guide block is easily placed on the inner side of the steel rail, then the pull ring of the spring pin is manually lifted, the pin head of the spring pin returns, and the guide wheel set is tightly attached to the inner side surface of the rail head of the steel rail under the action of the extension spring at the moment; after flaw detection is finished, the probe wheel group is manually pushed to transversely move towards the inner side of the steel rail head, the roller on the roller collision block component extrudes the button on the spring pin, the pin head of the spring pin is arranged in the limiting groove, the swing angle adjusting mechanism and the probe wheel group are locked again, and preparation is made for taking the probe wheel frame down from the vehicle body.
Furthermore, be equipped with guide post three on the outer frame, be equipped with the guiding hole on the internal frame, the internal frame passes through the guiding cooperation of guiding hole and guide post three to be installed on the outer frame, be connected with fastening nut on the guide post three.
The beneficial effect of adopting the further scheme is that: by means of the matching of the third guide column and the guide hole, the inner frame and the upper structure of the inner frame can be moved in the vertical direction when being installed or adjusted to press down, and deviation is avoided.
Drawings
FIG. 1 is a schematic view of an assembly of the probe wheel holder of the present invention;
FIG. 2 is a schematic view of the mounting structure of the inner frame, the lateral adjustment mechanism, the pivot angle adjustment mechanism and the probe wheel set of the present invention;
FIG. 3 is a schematic perspective view of the outer frame of the present invention;
FIG. 4 is a schematic perspective view of the lateral adjustment mechanism of the present invention;
FIG. 5 is a schematic view of the mounting structure of the outer frame, the guide wheel set and the lateral adjustment mechanism of the present invention;
FIG. 6 is a first perspective view of a guide wheel assembly according to the present invention;
FIG. 7 is a schematic perspective view of a guide wheel assembly according to the present invention;
FIG. 8 is a schematic cross-sectional view of a guide wheel assembly of the present invention;
FIG. 9 is a schematic perspective view of the roller impact block assembly of the present invention;
FIG. 10 is a perspective view of the brush assembly of the present invention;
FIG. 11 is a schematic perspective view of a showerhead assembly of the present invention;
FIG. 12 is a schematic view of two states of the probe wheel assembly of the present invention engaged with a rail.
In the drawings, the components represented by the respective reference numerals are listed below:
1. an inner frame; 11. a threaded adjustment member; 12. a spring pin; 13. a button; 14. a pin head; 15. a roller bump assembly; 16. a roller; 17. a guide rail; 18. a threaded shaft;
2. an outer frame; 21. a guide shaft; 22. a third guide post; 23. fixing the bolt; 24. a connecting arm; 25. hanging the plate;
3. a guide wheel set; 31. a guide wheel; 32. a shaft sleeve; 321. a retainer ring for a shaft; 322. an inner spacer sleeve; 323. an outer spacer sleeve; 33. a connecting frame; 34. a first sliding sleeve; 35. a guide block; 36. a friction ring; 37. a brush assembly; 371. a brush holder; 372. an anti-rotation baffle; 373. a water pipe connecting pipe; 374. a brush; 38. an extension spring; 381. a spring connecting rod; 39. a bearing;
4. a detection wheel set; 41. a showerhead assembly; 42. hooping; 43. folding the plate; 44. a spray head;
5. a swing angle adjusting mechanism; 51. a swing angle motor connecting frame; 52. a connecting plate; 53. a swing angle motor; 54. a slider; 55. a rotating shaft; 56. a second sliding sleeve; 57. a limiting groove;
6. a lateral adjustment mechanism; 61. a transverse motor connecting plate; 62. a transverse motor; 63. a first guide post; 64. a second guide post; 65. locking screws;
7. a steel rail; 71. a rail transverse centerline; 72. the horizontal central line of the probe wheel.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
As shown in fig. 1 to 11, a probe wheel holder of a rail ultrasonic flaw detector of the present embodiment includes:
the
an inner frame 1 mounted over the
the swing angle adjusting mechanism 5 is connected with the inner frame 1 in a transverse sliding mode, the driving end of the swing angle adjusting mechanism 5 is connected with the
the transverse adjusting mechanism 6 is transversely limited on the guide wheel set 3 and can vertically move relative to the guide wheel set 3, and a driving end of the transverse adjusting mechanism 6 is connected with the swing angle adjusting mechanism 5 and drives the swing angle adjusting mechanism 5 to drive the probe wheel set 4 to transversely move along the inner frame 1;
wherein, twist and move the vertical displacement volume of screw thread adjusting part 11 adjustment inner frame 1, pivot angle adjustment mechanism 5, horizontal adjustment mechanism 6 and
As shown in fig. 1, a hanging
In the embodiment, the inner frame is arranged above the outer frame through the thread adjusting part, the inner frame, the swing angle adjusting mechanism, the transverse adjusting mechanism and the vertical displacement of the detecting wheel group are adjusted by screwing the thread adjusting part, so that the downward pressing amount of the detecting wheel group relative to the tread of the steel rail is adjusted, and the downward pressing amount is locked and fixed after adjustment to prevent the change of the downward pressing amount; before the flaw detector runs, the swing angle adjusting mechanism and the transverse adjusting mechanism are utilized to adjust the probe wheel set to a preset flaw detection position, and after the flaw detector runs, the transverse adjusting mechanism is matched with the guide wheel set to realize the follow-up function of the probe wheel set and the guide wheel set, so that the probe wheel set is always positioned at the preset position of the central axis surface of the steel rail along with the change of the inner side surface of the steel rail.
As shown in fig. 2, 4 and 5, the lateral adjustment mechanism 6 of the present embodiment includes:
the transverse
the
the guide column I63 is installed on the transverse
in the process of adjusting the downward pressing amount, the
The transverse motor drives the swing angle adjusting mechanism and drives the probe wheel group on the swing angle adjusting mechanism to realize transverse movement, the adjustment of the transverse displacement L of the probe wheel group is realized, the transverse motor connecting plate is installed on one side of the probe wheel group, the transverse motor can be conveniently installed, the transverse motor connecting plate is conveniently matched with the sliding sleeve I and the locking structure on the guide wheel group, and when the pressing amount is adjusted in place, the transverse motor connecting plate and the transverse motor on the transverse motor connecting plate can be driven to realize follow-up with the guide wheel group.
As shown in fig. 2, 4 and 5, in order to prevent the lateral adjustment mechanism from deviating, a second
As shown in fig. 5, the two guide wheel sets 3 of this embodiment are respectively located at the front and rear sides of the
As shown in fig. 1, 3 and 5, the
as shown in fig. 5 to 8, the guide wheel set 3 includes a
In the embodiment, as shown in fig. 8, a
As shown in fig. 1, 5-8, one end of the
Specifically, as shown in fig. 10, the
As shown in fig. 2, the pivot angle adjusting mechanism 5 of the present embodiment includes:
the swing angle
the two connecting
the
the
When the
Specifically, as shown in fig. 11, the sprayer assembly 41 includes a
As shown in fig. 1, 2 and 9, the inner frame 1 of the present embodiment is provided with a vertically arranged
As shown in fig. 1 and 3, the
The front-back direction of the present embodiment is set by the guide wheel set and the probe wheel set along the traveling direction of the rail. In addition, "lateral arrangement", "lateral movement", and the like of the present embodiment refer to being set relatively perpendicular to the traveling direction.
The detection wheel support has a guiding follow-up function and a detection wheel position adjusting function, and the detection wheel is adjusted to a preset detection position of the steel rail through the detection wheel adjusting function before the detection wheel set runs in the flaw detector; the flaw detector is operated, the probe wheel is always positioned at the preset position of the central axis surface of the steel rail along with the change of the inner side surface of the steel rail through the follow-up function of the probe wheel bracket, and the probe wheel can smoothly pass through the guide structure of the follow-up part when passing through a turnout.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
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