阅读说明：本技术 一种电力抢修梯 (Electrical power rush-repair ladder ) 是由 王志强 张永建 姜国强 李飞 李圆 邱亮亮 李浩堂 于 2021-08-05 设计创作，主要内容包括：本发明公开了一种电力抢修梯,包括底座、升降台以及伸缩梯,所述升降台设置在所述底座上,所述伸缩梯的一端铰接在所述底座上、另一端与所述升降台相铰接,所述底座上设置有用于驱动所述升降台上升和下降的所述驱动组件。本发明有助于解决一般电力抢修梯无施工站立点,施工的安全问题难以得到保障,同时搭建耗时费力,减缓施工进度的问题。(The invention discloses an electric power rush-repair ladder which comprises a base, a lifting platform and a telescopic ladder, wherein the lifting platform is arranged on the base, one end of the telescopic ladder is hinged to the base, the other end of the telescopic ladder is hinged to the lifting platform, and a driving assembly for driving the lifting platform to ascend and descend is arranged on the base. The invention is beneficial to solving the problems that the common power rush-repair ladder has no construction standing point, the construction safety problem is difficult to guarantee, the construction is time-consuming and labor-consuming, and the construction progress is slowed down.)

1. The utility model provides an electrical power rush-repair ladder, its characterized in that includes base (1), elevating platform (2) and extension ladder (3), elevating platform (2) set up on base (1), the one end of extension ladder (3) articulates on base (1), the other end with elevating platform (2) are articulated mutually, be provided with on base (1) and be used for the drive elevating platform (2) rise and descend drive assembly (4).

2. The emergency power repair ladder according to claim 1, wherein a mounting groove (101) is formed in the base (1), the driving assembly (4) is arranged in the mounting groove (101), the driving assembly (4) comprises a motor (401) and a first connecting rod (402), a first gear (4011) is arranged at an output end of the motor (401), the first connecting rod (402) is rotatably arranged in the mounting groove (101), a second gear (4021) is arranged at one end of the first connecting rod (402), and the second gear (4021) is meshed with the first gear (4011);

elevating platform (2) include workstation (201), first fork expansion bracket (202) and first threaded rod (203) of cutting, the screw thread at the both ends of first threaded rod (203) sets up to symmetrical state, slide the setting in one side of first fork expansion bracket (202) and be in the both ends of bottom, the opposite side of workstation (201) slide respectively and set up in mounting groove (101) and with the screw position department threaded connection at the both ends of first threaded rod (203), the one end of first threaded rod (203) still is provided with third gear (2031), the other end of first connecting rod (402) is provided with fourth gear (4022), third gear (2031) with fourth gear (4022) meshing.

3. The electrical power rush-repair ladder as claimed in claim 2, wherein the lifting platform (2) further comprises a second scissor type telescopic frame (204), one end of the second scissor type telescopic frame (204) is slidably arranged at the bottom of the working platform (201), and the other end of the second scissor type telescopic frame is slidably arranged on the base (1).

4. The electrical power rush-repair ladder as claimed in claim 2, wherein the extension ladder (3) comprises two first telescopic rods (301) and a plurality of pedals (5) rotatably arranged between the two first telescopic rods (301), a plurality of linkage telescopic rods (302) are hinged between the pedals (5), and a turning assembly (6) connected with the lowest pedal (5) and used for driving the pedals (5) to turn is further arranged on the base (1).

5. Electrical power emergency repair ladder according to claim 4, characterized in that said drive assembly (4) comprises an electric motor (401), a fifth gear (4012) is connected to the output end of the motor (401), the overturning component (6) comprises a second threaded rod (601), a second connecting rod (602) and a first sliding block (603), one end of the second threaded rod (601) is rotatably arranged on the wall of the mounting groove (101), the other end of the second threaded rod is provided with a sixth gear (6011), the sixth gear (6011) is meshed with the fifth gear (4012), the first sliding block (603) is in threaded connection with the second threaded rod (601) and is in sliding connection with the groove wall of the mounting groove (101), one end of the second connecting rod (602) is hinged with the first sliding block (603), and the other end of the second connecting rod is hinged with the pedal (5) positioned at the lowest end in the pedals (5).

6. The emergency power repair ladder according to claim 5, wherein a third link (604) is further hinged to the lowest pedal (5) of the plurality of pedals (5), and the other end of the third link (604) is slidably hinged to the second link (602).

7. The emergency power repair ladder according to claim 5, wherein the second threaded rod (601) is configured to have a threaded section and an unthreaded section, and a stopper (6012) is disposed at a position where the second threaded rod (601) is unthreaded.

8. The emergency power repair ladder according to claim 2, wherein a return assembly (7) is further arranged in the base (1), the return assembly (7) comprises a third threaded rod (701) and a second sliding block (702), one end of the third threaded rod (701) is rotatably arranged on the groove wall of the mounting groove (101), a seventh gear (7011) is arranged at the other end of the third threaded rod, the seventh gear (7011) is meshed with the first gear (4011), and the second sliding block (702) is in threaded connection with the third threaded rod (701) and is in sliding connection with the groove wall of the mounting groove (101).

9. The emergency power repair ladder according to claim 4, wherein the pedals (5) are identical in structure and each comprise a base plate (501), a pedal plate (502) and an anti-skid component (8);

the anti-skid assembly (8) comprises a third sliding block (801), a first spring (802), a sliding column (803), two baffles (804), two fourth connecting rods (805) and two hinge rod sets (806), the third sliding block (801) is arranged between the base plate (501) and the pedal plate (502), one end of the third sliding block (801) is connected with the base plate (501) in a sliding mode, one end of the sliding column (803) penetrates through the pedal plate (502) in a sliding mode, the other end of the sliding column (803) is arranged on the third sliding block (801) in a sliding mode, the first spring (802) is connected between the two sliding column (801) and the third sliding block (801), the two baffles (804) are arranged in the pedal plate (502), the two baffles (804) are hinged to two sides of the sliding column (803) through the two hinge rod sets (806) respectively, one end of the two fourth connecting rods (805) is hinged to the two baffles (804) in a sliding mode in a one-to-one correspondence mode, The other end of the pedal is respectively hinged to two sides of the sliding column (803) in a sliding manner, two sides of the pedal (502) are further provided with a position-giving port (5023) for the two baffles (804) to penetrate through, and the third slider (801) and the sliding column (803) can control whether the two baffles (804) extend out of the baffles (804).

10. The electrical power rush-repair ladder according to claim 9, characterized in that the bottom both sides of the tread plate (502) are respectively provided with a fourth slider (5021) in a sliding manner, the both sides of the base plate (501) are respectively provided with a groove (5011), the bottom both sides of the tread plate (502) and two fourth sliders (5021) are respectively arranged in the corresponding grooves (5011) in a sliding manner, and a third spring (5022) is connected between the two fourth sliders (5021) and the corresponding groove bottom wall of the groove (5011).

Technical Field

The invention relates to the technical field of power line repair, in particular to a power line repair ladder.

Background

An electric power rush-repair ladder is a common electric power rush-repair device for a power supply unit to ascend during the daily maintenance and emergency maintenance of a transformer substation.

Current electrical power rush-repair ladder is mostly simple cat ladder structure, and constructor is difficult for standing when being located the maintenance of rush-repair ladder top, and the safety problem of construction is difficult to obtain the guarantee, and the use of the ladder of salvageing that has now simultaneously is set up the in-process and is adopted the manual work to stick up and build, and is consuming time hard, has slowed down the construction progress.

Disclosure of Invention

The invention aims to solve the technical problem of providing an electric power rush-repair ladder which can ensure the construction safety of personnel, is convenient to build and can accelerate the construction progress.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides an electrical power rush-repair ladder, includes base, elevating platform and extension ladder, the elevating platform sets up on the base, the one end of extension ladder articulates on the base, the other end with the elevating platform is articulated mutually, be provided with on the base and be used for the drive the elevating platform rises and descends drive assembly.

Furthermore, a mounting groove is formed in the base, the driving assembly is arranged in the mounting groove and comprises a motor and a first connecting rod, a first gear is arranged at the output end of the motor, the first connecting rod is rotatably arranged in the mounting groove, a second gear is arranged at one end of the first connecting rod, and the second gear is meshed with the first gear;

the elevating platform includes workstation, first fork expansion bracket and the first threaded rod of cutting, the screw thread at the both ends of first threaded rod sets up to the symmetric state, the first one side of cutting the fork expansion bracket slides and sets up the bottom of workstation, the both ends of opposite side slide respectively set up in the mounting groove and with the threaded position department threaded connection at the both ends of first threaded rod, the one end of first threaded rod still is provided with the third gear, the other end of first connecting rod is provided with the fourth gear, the third gear with fourth gear engagement.

Furthermore, the elevating platform still includes the fork expansion bracket is cut to the second, the one end of fork expansion bracket is cut to the second slides and sets up the bottom of workstation, the other end slide and set up on the base.

Further, the extension ladder includes two first telescopic links and rotates to set up two a plurality of footboards between first telescopic link are a plurality of articulated linkage telescopic link between the footboard, still be equipped with on the base with the bottom the footboard is connected be used for driving a plurality of the upset subassembly of footboard upset.

Further, drive assembly includes the motor, be connected with the fifth gear on the output of motor, the upset subassembly includes second threaded rod, second connecting rod and first slider, the one end of second threaded rod is rotated and is set up on the cell wall of mounting groove, the other end is provided with the sixth gear, the sixth gear with fifth gear engagement, first slider with second threaded rod threaded connection and with the cell wall sliding connection of mounting groove, the one end of second connecting rod with first slider is articulated, the other end is with a plurality of lie in the bottom in the footboard is articulated.

Furthermore, a third connecting rod is hinged to the pedal located at the lowermost end of the pedals, and the other end of the third connecting rod is hinged to the second connecting rod in a sliding manner.

Furthermore, the second threaded rod is of a structure with one section of threads and one section of no-threads, and a stop block is arranged at the position where the second threaded rod is not provided with the threads.

Furthermore, still be provided with in the base and reply the subassembly, reply the subassembly and include third threaded rod and second slider, the one end of third threaded rod rotates and sets up on the cell wall of mounting groove, the other end is provided with the seventh gear, the seventh gear with the meshing of first gear looks, the second slider with third threaded rod threaded connection and with the cell wall sliding connection of mounting groove.

Furthermore, the pedals are identical in structure and comprise base plates, pedal plates and anti-skidding components;

the anti-skid component comprises a third sliding block, a first spring, a sliding column, two baffle plates, two fourth connecting rods and two hinge rod groups, the third sliding block is arranged between the base plate and the pedal, one end of the third sliding block is connected with the base plate in a sliding way, one end of the sliding column penetrates through the pedal in a sliding mode, the other end of the sliding column is arranged on the third sliding block in a sliding mode, a first spring is connected between the sliding column and the third sliding block, the two baffles are arranged in the pedal, the two baffles are hinged to the two sides of the sliding column through two hinge rod sets respectively, one end of each of the two fourth connecting rods is hinged to the two baffles in a one-to-one corresponding sliding mode, the other end of each of the two fourth connecting rods is hinged to the two sides of the sliding column in a sliding mode, the pedal is provided with a plurality of baffle plates, the pedal is provided with a plurality of stepping holes, the baffle plates are arranged on the pedal, and the third sliding block and the sliding column can control whether the two baffle plates extend out of the baffle plates.

Furthermore, fourth sliding blocks are arranged on two sides of the bottom of the pedal in a sliding mode respectively, grooves are formed in two sides of the base plate respectively, two sides of the bottom of the pedal and the two fourth sliding blocks are arranged in the corresponding grooves in a sliding mode respectively, and a third spring is connected between the two fourth sliding blocks and the corresponding groove bottom wall of the groove.

The invention has the beneficial effects that:

the electric power rush-repair ladder is provided with the base, the lifting platform and the extension ladder, wherein the base is internally provided with the driving assembly which controls the lifting platform to rise and fall.

Drawings

Fig. 1 is a structural schematic diagram of a power emergency repair ladder in a storage state;

fig. 2 is a partial structural sectional view of the accommodation state of the power emergency repair ladder of the invention;

fig. 3 is a partial structural sectional view of the power emergency repair ladder in use state;

FIG. 4 is a sectional view of a part of the structure of the elevating platform of the present invention;

FIG. 5 is a schematic view of the safety rope structure for working aloft of the present invention

FIG. 6 is a cross-sectional view of the pedal of the present invention in an unstedated state;

fig. 7 is a cross-sectional view showing a step-on state of the pedal of the present invention.

The components in the drawings are labeled as follows: 1. a base; 101. mounting grooves; 2. a lifting platform; 201. a work table; 2011. a base plate; 2012. a vertical plate; 2013. a second telescopic rod; 202. a first scissor-fork type expansion bracket; 203. a first threaded rod; 2031. a third gear; 204. a second scissor type telescopic frame; 3. an extension ladder; 301. a first telescopic rod; 302. linking the telescopic rod; 303. a third telescopic rod; 304. a safety rope for overhead operation; 4. a drive assembly; 401. a motor; 4011. a first gear; 4012. a fifth gear; 402. a first link; 4021. a second gear; 4022. a fourth gear; 5. a pedal; 501. a substrate; 5011. a groove; 502. treading the board; 5021. a fourth slider; 5022. a third spring; 5023. a let position port; 6. a turnover assembly; 601. a second threaded rod; 6011. a sixth gear; 6012. a stopper; 602. a second link; 603. a first slider; 604. a third link; 7. a reply component; 701. a third threaded rod; 7011. a seventh gear; 702. a second slider; 8. an anti-skid component; 801. a third slider; 802. a first spring; 803. a traveler; 804. a baffle plate; 805. a fourth link; 806. a hinge rod group; 8061. a hinge rod; 807. a stopper; 808. a bump; 9. and (5) fixing blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, "a plurality" means two or more. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

See fig. 2.

The electric power rush-repair ladder comprises a base 1, a lifting platform 2 and a telescopic ladder 3, wherein the lifting platform 2 is arranged on the base 1, one end of the telescopic ladder 3 is hinged to the base 1, the other end of the telescopic ladder is hinged to the lifting platform 2, and the base 1 is provided with a driving assembly 4 for driving the lifting platform 2 to ascend and descend.

The electric power rush-repair ladder is provided with the base 1, the lifting platform 2 and the extension ladder 3, the driving assembly 4 is arranged in the base 1, the driving assembly 4 controls the lifting and lowering of the lifting platform 2, the extension ladder 3 is hinged with the lifting platform 2, the extension ladder 3 is adjusted along with the lifting platform 2 in the lifting process, mechanical adjustment is achieved, the linkage effect is good, operation is convenient and fast, meanwhile, the lifting platform 2 is arranged to provide a stable standing point for constructors, and construction is convenient and safety is guaranteed.

In an embodiment, referring to fig. 2 and 4, a mounting groove 101 is formed in the base 1, the driving assembly 4 is disposed in the mounting groove 101, the driving assembly 4 includes a motor 401 and a first connecting rod 402, an output end of the motor 401 is provided with a first gear 4011, the first connecting rod 402 is rotatably disposed in the mounting groove 101, one end of the first connecting rod 402 is provided with a second gear 4021, and the second gear 4021 is engaged with the first gear 4011;

elevating platform 2 includes workstation 201, first fork expansion bracket 202 and first threaded rod 203 of cutting, the screw thread at the both ends of first threaded rod 203 sets up to the symmetric state, one side of first fork expansion bracket 202 slides and sets up the bottom of workstation 201, the both ends of opposite side slide respectively and set up in the mounting groove 101 and with the screw thread position department threaded connection at the both ends of first threaded rod 203, the one end of first threaded rod 203 still is provided with third gear 2031, the other end of first connecting rod 402 is provided with fourth gear 4022, third gear 2031 with the meshing of fourth gear 4022. Design like this, accessible motor 401's rotation drives first connecting rod 402 and rotates, first connecting rod 402 rotates and drives first threaded rod 203 and rotate, first threaded rod 203 rotates and drives the both ends of first scissors fork formula expansion bracket 202 threaded connection one side on first threaded rod 203 and do motion in opposite directions or dorsad on first threaded rod 203 to realize the rising or the reduction of elevating platform 2, in this embodiment, first connecting rod 402 and first threaded rod 203 rotate through fixed block 9 and set up in mounting groove 101.

In an embodiment, referring to fig. 2, the lifting platform 2 further includes a second scissor type telescopic frame 204, one end of the second scissor type telescopic frame 204 is slidably disposed at the bottom of the working platform 201, and the other end is slidably disposed on the base 1. By the design, the second scissor type telescopic frame 204 is used for assisting in supporting the lifting of the lifting platform 2, so that the stability of the lifting platform 2 is enhanced.

In an embodiment, referring to fig. 4, the workbench 201 includes a bottom plate 2011, vertical plates 2012 hinged to both sides of the bottom plate 2011, and second telescopic rods 2013 with two ends respectively rotatably connected to the two vertical plates 2012. By the design, the foldable function of the workbench 201 is realized, and the vertical plate 2012 is folded on the surface of the bottom plate 2011 when the workbench is not used, so that the occupied volume of the workbench 201 is reduced.

In an embodiment, referring to fig. 2, the extension ladder 3 includes two first extension bars 301 and a plurality of pedals 5 rotatably disposed between the two first extension bars 301, a linkage extension bar 302 is hinged between the plurality of pedals 5, and the base 1 is further provided with a turning assembly 6 connected to the lowermost pedal 5 for driving the plurality of pedals 5 to turn. Design like this, can realize the angle modulation of footboard 5 through upset subassembly 6, because articulated between a plurality of footboards 5 have linkage telescopic link 302, so a plurality of footboards 5 can together carry out the angle modulation by upset subassembly 6, and the constructor of being convenient for tramples.

In an embodiment, referring to fig. 1 and 5, a third telescopic rod 303 is disposed on any one of the two first telescopic rods 301, and an aerial work safety rope 304 is slidably connected to the third telescopic rod 303. Design like this, factor of safety when the cat ladder has strengthened constructor to a certain extent.

In an embodiment, referring to fig. 2, the driving assembly 4 includes a motor 401, a fifth gear 4012 is connected to an output end of the motor 401, the flipping assembly 6 includes a second threaded rod 601, a second connecting rod 602, and a first sliding block 603, one end of the second threaded rod 601 is rotatably disposed on a groove wall of the mounting groove 101, and the other end of the second threaded rod 601 is provided with a sixth gear 6011, the sixth gear 6011 is engaged with the fifth gear 4012, the first sliding block 603 is threadedly connected with the second threaded rod 601 and slidably connected with a groove wall of the mounting groove 101, one end of the second connecting rod 602 is hinged to the first sliding block 603, and the other end of the second connecting rod 602 is hinged to the lowest pedal 5 of the plurality of pedals 5. Design like this, rotate through motor 401, drive second threaded rod 601 and rotate, second threaded rod 601 rotates and drives first slider 603 and slide on it, and first slider 603 slides and drives the footboard 5 of being connected rather than rotating, and then realizes that a plurality of footboards 5 adjust, and in this embodiment, second threaded rod 601 rotates through fixed block 9 and sets up in mounting groove 101.

In one embodiment, referring to fig. 2, a third link 604 is further hinged to the lowest pedal 5 of the pedals 5, and the other end of the third link 604 is slidably hinged to the second link 602. With such a design, the pedal 5 is supported in an auxiliary manner, so that the pedal 5 is prevented from being unstable when the pedal 5 is stepped on, and the stability of the pedal 5 is maintained.

In one embodiment, referring to fig. 2, the second threaded rod 601 is provided with a section of thread and a section of non-thread, and a stop 6012 is disposed at a position where the second threaded rod 601 is not threaded. By the design, when the second threaded rod 601 slides to the position without threads, the first sliding block 603 does not slide any more, but the motor 401 still rotates, and the lifting platform 2 still rises.

In an embodiment, referring to fig. 2, a restoring assembly 7 is further disposed in the base 1, the restoring assembly 7 includes a third threaded rod 701 and a second sliding block 702, one end of the third threaded rod 701 is rotatably disposed on a groove wall of the mounting groove 101, the other end of the third threaded rod 701 is provided with a seventh gear 7011, the seventh gear 7011 is engaged with the first gear 4011, and the second sliding block 702 is in threaded connection with the third threaded rod 701 and is slidably connected with the groove wall of the mounting groove 101. The design is like this, the motor 401 drives the third threaded rod 701 to rotate when rotating, the third threaded rod 701 rotates and drives the second slider 702 to slide on it, in this embodiment, the third threaded rod 701 rotates through the fixed block 8 and sets up in the mounting groove 101, the second slider 702 sets up the one side at first slider 603, the second slider 702 moves to the right when the elevating platform 2 begins to rise, second slider 702 and first slider 603 do not contact at this moment, move to the left when the elevating platform 2 begins to descend, the second slider 702 can push the first slider 603 again with second threaded rod 601 threaded connection, and then make the first slider 603 slide to the left, withdraw the footboard 5, no longer incline.

In an embodiment, referring to fig. 6 and 7, a plurality of pedals 5 have the same structure and each include a base plate 501, a pedal plate 502 and an anti-slip component 8;

the anti-skid assembly 8 comprises a third slider 801, a first spring 802, a sliding column 803, two baffles 804, two fourth connecting rods 805 and two hinge rod sets 806, the third slider 801 is arranged between the base plate 501 and the pedal plate 502, one end of the third slider 801 is connected with the base plate 501 in a sliding manner, one end of the sliding column 803 is arranged on the pedal plate 502 in a sliding manner, the other end of the sliding column 803 is arranged on the third slider 801 in a sliding manner, the first spring 802 is connected between the third slider 801 and the two baffles 804, the two baffles 804 are arranged in the pedal plate 502, the two baffles 804 are respectively hinged to two sides of the sliding column 803 through the two hinge rod sets 806, one end of each of the two fourth connecting rods 805 is respectively hinged to the two baffles 804 in a sliding manner in one-to-one correspondence, the other end of each of the two fourth connecting rods is hinged to two sides of the sliding column 803 in a sliding manner, two sides of the pedal plate 502 are further provided with abdication ports 5023 for the two baffles 804 to pass through, the third slider 801 and the sliding column 803 can control whether the two baffles 804 extend out of the baffles 804. By the design, when a constructor treads the pedal 502, the sliding column 803 and the third sliding block 801 ascend together, the two baffles 804 extend out together, the foot plates of the constructor can be clamped, the anti-skid effect is achieved, and the safety of the constructor is further improved.

In an embodiment, referring to fig. 6 and 7, fourth sliders 5021 are slidably disposed on two sides of the bottom of the pedal 502, grooves 5011 are disposed on two sides of the base plate 501, the two sides of the bottom of the pedal 502 and the two fourth sliders 5021 are slidably disposed in the corresponding grooves 5011, and a third spring 5022 is connected between the two fourth sliders 5021 and the bottom wall of the corresponding groove 5011. Due to the design, when a constructor does not step on the pedal 502, the antiskid assembly 8 can be recovered through the third spring 5022.

In one embodiment, referring to fig. 6 or fig. 7, the top of the sliding column 803 is further provided with a limit plate 807. With such a design, the situation that the slide column 803 is immersed in the pedal 502 and cannot extend out of the pedal 502 is prevented.

In one embodiment, referring to fig. 6 and 7, the hinge rod set 806 is comprised of a plurality of hinge rods 8061 that are hinged to each other. By the design, the baffle 804 can be conveniently stored and displayed.

In one embodiment, referring to fig. 6 or 7, the stop 804 is provided with a protrusion 808. By means of the design, the blocking effect of the baffle 804 can be achieved through the bump 808.

It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this disclosure.