Connecting structure of modular assembly type steel structure

文档序号:102935 发布日期:2021-10-15 浏览:20次 中文

阅读说明:本技术 一种模块化装配式钢结构的连接结构 (Connecting structure of modular assembly type steel structure ) 是由 韩恭敏 韩康 韩玉 管萍萍 张凯 杜建宝 范文涛 李金花 于 2021-07-20 设计创作,主要内容包括:本发明涉及钢结构连接技术领域,具体的说是一种模块化装配式钢结构的连接结构,包括支撑机构,所述支撑机构上可拆卸连接有组装机构;所述支撑机构上设有辅助机构;所述支撑机构上安装有走线机构;所述走线机构上设有对接机构;通过组装机构的设置能够自动对准连接部位进行预固定,避免人力调节钢结构之间的安装部位,提高了组装效率;通过辅助机构的设置进而能够辅助提升支撑机构上组件的高度,方便组装机构更好的进行装配作业;通过走线机构的设置进而将消防管道或电缆等暗装到支撑机构上,通过对接机构的设置进而便于快速对管道之间进行连接导通,提高安装使用走线机构的规范化和美观度,方便后期线路改造。(The invention relates to the technical field of steel structure connection, in particular to a connecting structure of a modular assembly type steel structure, which comprises a supporting mechanism, wherein an assembling mechanism is detachably connected to the supporting mechanism; the supporting mechanism is provided with an auxiliary mechanism; the supporting mechanism is provided with a wiring mechanism; the wiring mechanism is provided with a butting mechanism; the assembly mechanism can automatically align the connecting parts for pre-fixing, so that the mounting parts between the steel structures can be prevented from being manually adjusted, and the assembly efficiency is improved; the auxiliary mechanism is arranged to assist in lifting the height of the component on the supporting mechanism, so that the assembly mechanism can be conveniently and better assembled; on the supporting mechanism is secretly adorned to fire-fighting pipeline or cable etc. through the setting of walking line mechanism, through docking mechanism's setting and then be convenient for connect fast between the pipeline and switch on, improve the standardization and the pleasing to the eye degree of walking line mechanism of installation and use, make things convenient for later stage circuit to reform transform.)

1. The connecting structure of the modularized assembly type steel structure is characterized by comprising a supporting mechanism (1), wherein an assembling mechanism (2) is detachably connected to the supporting mechanism (1); the supporting mechanism (1) is provided with an auxiliary mechanism (3); the supporting mechanism (1) is provided with a wiring mechanism (4); and the wiring mechanism (4) is provided with a butt joint mechanism (5).

2. The connection structure of a modular assembly type steel structure according to claim 1, wherein: supporting mechanism (1) includes first web (11), first web (11) both sides are connected with first flange (12) respectively, one side of first flange (12) is provided with second web (13), second web (13) top and bottom are connected with second flange (14) respectively.

3. The connection structure of a modular assembly type steel structure according to claim 2, wherein: the first web (11) and the first flange (12) and the second web (13) and the second flange (14) are integrally formed, and the cross sections of the first web and the second flange are H-shaped.

4. A connecting structure of a modular assembly type steel structure according to claim 3, wherein: the assembling mechanism (2) comprises a connecting piece (21), the two sides of the second web plate (13) are respectively provided with the connecting piece (21), a first bolt (22) is connected between the connecting piece (21) and the second web plate (13), and the connecting piece (21) and the second web plate (13) are assembled together through the first bolt (22).

5. The connection structure of a modular assembly type steel structure according to claim 4, wherein: the one end centre gripping of connecting piece (21) is on one of them first edge of a wing (12), be connected with second bolt (25) between connecting piece (21) and first edge of a wing (12), the cover has spacing ring (24) on second bolt (25), spacing ring (24) sliding connection connecting piece (21) and first edge of a wing (12), it has first spring (23) to contradict between spacing ring (24) and connecting piece (21).

6. The connection structure of a modular assembly type steel structure according to claim 2, wherein: the auxiliary mechanism (3) comprises first connecting rods (31), wherein the two sides of the first web plate (11) are respectively and rotatably connected with the first connecting rods (31), and fixing rods (32) are fixedly connected between the first connecting rods (31).

7. The connection structure of a modular assembly type steel structure according to claim 6, wherein: be provided with spout (33) on first web (11), sliding connection has slide bar (34) on spout (33), the both ends difference fixedly connected with bracing piece (35) of slide bar (34), bracing piece (35) rotate and connect first connecting rod (31), one of them rotate on second flange (14) and are connected with pull ring (36).

8. The connection structure of a modular assembly type steel structure according to claim 2, wherein: the routing mechanism (4) comprises a first pipeline (41), the first pipeline (41) is arranged between the second web (13) and the second flange (14), a second pipeline (42) is arranged on one side of the first web (11), and a tee joint (43) is arranged between the first pipeline (41) and the second pipeline (42).

9. The connecting structure of a modular assembly type steel structure according to claim 8, wherein: a plurality of elastic buckles (44) are sleeved on the outer sides of the first pipeline (41) and the second pipeline (42), clamping blocks (45) are clamped at two ends of each elastic buckle (44), and the clamping blocks (45) are uniformly and fixedly connected to the first web plate (11) and the second web plate (13).

10. The connecting structure of a modular assembly type steel structure according to claim 9, wherein: docking mechanism (5) are including spacing ring (51), the tip sliding connection of tee bend (43) has spacing ring (51), fixedly connected with lug (52) on tee bend (43), it has second spring (53) to contradict between lug (52) and spacing ring (51), it has a plurality of steel balls (54) to contradict on spacing ring (51), steel ball (54) contradict on second pipeline (42).

Technical Field

The invention relates to the technical field of steel structure connection, in particular to a connecting structure of a modular assembly type steel structure.

Background

The modular assembly type multi-high steel structure is formed by splicing modules processed in a factory on site by bolts, has the advantages of high construction speed, labor intensity reduction, construction pollution reduction and the like, belongs to green environment-friendly buildings, and is an innovative technology of the steel structure building industry.

However, traditional steel construction is when assembling, mostly needs the manpower to adjust the mounted position between the steel part to bolt etc. alternate and fix between two steel parts, do not have the function of automatic pre-fixing steel part, increased intensity of labour and the assembly degree of difficulty, and when the height of indoor promotion girder that the space is limited, mostly need build supplementary hoist and mount frock temporarily, serious extravagant activity duration, thereby the packaging efficiency of great reduction steel construction.

Disclosure of Invention

The invention provides a connecting structure of a modular assembly type steel structure, aiming at the problems in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: a connecting structure of a modular assembly type steel structure comprises a supporting mechanism, wherein an assembling mechanism is detachably connected to the supporting mechanism; the supporting mechanism is provided with an auxiliary mechanism; the supporting mechanism is provided with a wiring mechanism; and the wiring mechanism is provided with a butt joint mechanism.

Specifically, the supporting mechanism comprises a first web, two sides of the first web are connected with first flanges respectively, one side of each first flange is provided with a second web, and the top end and the bottom end of each second web are connected with second flanges respectively.

Specifically, be integrated into one piece between first web and the first edge of a wing and between second web and the second edge of a wing, and the cross section of both all is the H form.

Specifically, the assembling mechanism comprises connecting pieces, the two sides of the second web plate are respectively provided with the connecting pieces, a first bolt is connected between the connecting pieces and the second web plate, and the connecting pieces and the second web plate are assembled together through the first bolts.

Specifically, the one end centre gripping of connecting piece is on one of them first edge of a wing, be connected with the second bolt between connecting piece and the first edge of a wing, the cover has the spacing ring on the second bolt, spacing ring sliding connection connecting piece and first edge of a wing, it has first spring to contradict between spacing ring and the connecting piece.

Specifically, the auxiliary mechanism comprises first connecting rods, wherein the two sides of the first web plate are respectively and rotatably connected with the first connecting rods, and the fixing rods are fixedly connected between the first connecting rods.

Specifically, be provided with the spout on the first web, sliding connection has the slide bar on the spout, the both ends difference fixedly connected with bracing piece of slide bar, the bracing piece rotates and connects first connecting rod, one of them rotate on the second flange and be connected with the pull ring.

Specifically, walk the line mechanism and include first pipeline, be provided with first pipeline between second web and the second alar margin, first web one side is provided with the second pipeline, be provided with the tee bend between first pipeline and the second pipeline.

Specifically, a plurality of elastic buckles are sleeved on the outer sides of the first pipeline and the second pipeline, clamping blocks are clamped at two ends of each elastic buckle, and the clamping blocks are uniformly and fixedly connected to the first web plate and the second web plate.

Specifically, docking mechanism includes the spacing ring, the tip sliding connection of tee bend has the spacing ring, fixedly connected with lug on the tee bend, it has the second spring to contradict between lug and the spacing ring, it has a plurality of steel balls to contradict on the spacing ring, the steel ball is contradicted on the second pipeline.

The invention has the beneficial effects that:

(1) according to the connecting structure of the modularized assembly type steel structure, the assembling mechanism is detachably connected to the supporting mechanism, the connecting part can be automatically aligned to be pre-fixed through the arrangement of the assembling mechanism, the mounting part between the steel structures is prevented from being manually adjusted, and the assembling efficiency is improved, namely: the first web and the first flange form a supporting vertical beam, the second web and the second flange form a beam, when the beam is required to be butted on the vertical beam, one end of the second web is vertically opposite to one side of the bottom end of the first flange, the distance between the second web and the first flange is adjusted, the two connecting pieces are clamped on two sides of the first flange, so that the two connecting pieces can slide along the first flange, the connecting pieces are fixed on the second web through two connecting parts such as first bolts, nuts and the like, the other end of the second web is connected to the other first flange in the same connecting mode, then the second web is lifted to a proper height through an auxiliary mechanism, the limiting ring is always butted on the first flange by the first spring, when the limiting ring is contacted with a hole groove at an installation position, the limiting ring is pushed and clamped on the first flange in the first spring resetting process, two spacing rings at second web both ends block simultaneously to two different first edges of a wing to can be with the second web temporary fixation to required mounted position, need not the manpower and adjust the slotted hole between connecting piece and the first edge of a wing, thereby improved the butt joint speed between perpendicular roof beam and the crossbeam, need not the hard adjustment installation position of manpower, improved the packaging efficiency.

(2) According to the connecting structure of the modularized assembly type steel structure, the supporting mechanism is provided with the auxiliary mechanism, the height of an assembly on the supporting mechanism can be assisted to be increased through the arrangement of the auxiliary mechanism, and the assembly operation of the assembly mechanism is facilitated to be better carried out, namely: when needing the second web to remove along the first edge of a wing, then rotate first connecting rod, first connecting rod drives the bracing piece, bracing piece drive slide bar slides along the spout, after the slide bar slides the position of block, the slide bar is spacing to the bracing piece, the bracing piece has supported first connecting rod, thereby make first connecting rod be in the position on perpendicular first edge of a wing, can hang the iron hoist of hoist and mount usefulness this moment on the dead lever, the operation snap ring, make the pull ring deflect the top on the second edge of a wing, join in marriage the couple and hang on the pull ring, start iron hoist pulling second web this moment and promote the height along the first edge of a wing, and then made things convenient for supplementary lifting device's use, further improvement the packaging efficiency, the hidden folding design that can hide of pull ring and dead lever has made things convenient for hiding and has accomodate, avoid the outstanding steel construction that hinders the later stage use.

(3) According to the connecting structure of the modular assembly type steel structure, the wiring mechanism is arranged on the supporting mechanism; walk to be equipped with docking mechanism in the line mechanism, through walking setting up of line mechanism and then with the concealed installation to the supporting mechanism such as fire-fighting pipeline or cable, through docking mechanism's setting and then be convenient for connect fast between the pipeline and switch on, improve the installation and use the efficiency of walking line mechanism, promptly: when cables need to be arranged between the vertical beams and the cross beams, in order to improve the insulation effect between the cables and metal materials, the pipelines need to be sleeved outside the cables, the cables pass through the first pipeline, the tee joint and the second pipeline, then the corresponding limiting rings slide, the first pipeline and the second pipeline are inserted into the tee joint, the limiting rings are not held, the second spring automatically resets and collides with the steel ball, the steel ball collides with the first pipeline and the second pipeline, so that the effect of quickly connecting the pipelines is achieved, when the first pipeline is fixed, the elastic buckle is pinched and clamped on the clamping block, the second pipeline is sequentially fixed according to the mode, further, the connecting and fixing effects of the pipelines are greatly improved, the operation of secretly installing the pipelines on the steel structure reasonably utilizes the empty space, and the hidden installation mode increases the attractiveness and the standardization of routing, the line transformation in later period is facilitated.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a structural view illustrating an overall structure of a preferred embodiment of a connection structure of a modular assembly type steel structure according to the present invention;

FIG. 2 is a schematic view of a connection structure of the supporting mechanism and the assisting mechanism shown in FIG. 1;

FIG. 3 is a schematic view of a connection structure of the supporting mechanism, the assembling mechanism and the routing mechanism shown in FIG. 1;

FIG. 4 is an enlarged view of the part A shown in FIG. 1;

FIG. 5 is an enlarged view of the portion B shown in FIG. 1;

FIG. 6 is an enlarged view of the portion C shown in FIG. 3;

fig. 7 is an enlarged view of the portion D shown in fig. 3.

In the figure: 1. the device comprises a supporting mechanism, 11, a first web plate, 12, a first flange, 13, a second web plate, 14, a second flange, 2, an assembling mechanism, 21, a connecting piece, 22, a first bolt, 23, a first spring, 24, a limiting ring, 25, a second bolt, 3, an auxiliary mechanism, 31, a first connecting rod, 32, a fixing rod, 33, a sliding groove, 34, a sliding rod, 35, a supporting rod, 36, a pull ring, 4, a routing mechanism, 41, a first pipeline, 42, a second pipeline, 43, a tee joint, 44, an elastic buckle, 45, a clamping block, 5, a butting mechanism, 51, a limiting ring, 52, a lug, 53, a second spring, 54 and a steel ball.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-7, the connecting structure of the modular assembly type steel structure according to the present invention includes a supporting mechanism 1, wherein an assembling mechanism 2 is detachably connected to the supporting mechanism 1; the supporting mechanism 1 is provided with an auxiliary mechanism 3; the supporting mechanism 1 is provided with a wiring mechanism 4; and the wiring mechanism 4 is provided with a butt joint mechanism 5.

Specifically, the supporting mechanism 1 comprises a first web 11, two sides of the first web 11 are respectively connected with a first flange 12, one side of the first flange 12 is provided with a second web 13, and the top end and the bottom end of the second web 13 are respectively connected with a second flange 14.

Specifically, the first web 11 and the first flange 12 and the second web 13 and the second flange 14 are integrally formed, and the cross sections of the first web 11 and the second flange are both H-shaped.

Specifically, the assembling mechanism 2 includes a connecting member 21, the connecting member 21 is disposed on both sides of the second web 13, a first bolt 22 is connected between the connecting member 21 and the second web 13, and the connecting member 21 and the second web 13 are assembled together by the first bolt 22.

Specifically, one end of the connecting piece 21 is clamped on one of the first flanges 12, a second bolt 25 is connected between the connecting piece 21 and the first flange 12, a limiting ring 24 is sleeved on the second bolt 25, the limiting ring 24 is connected with the connecting piece 21 and the first flange 12 in a sliding manner, and a first spring 23 is abutted between the limiting ring 24 and the connecting piece 21; through the setting of equipment mechanism 2 can the automatic alignment connect the position and fix in advance, avoids the manpower to adjust the installation position between the steel construction, has improved the packaging efficiency, promptly: the first web 11 and the first flange 12 constitute a supporting vertical beam, the second web 13 and the second flange 14 constitute a cross beam, when the cross beam needs to be butted on a vertical beam, firstly, one end of the second web 13 is vertically opposite to one side of the bottom end of the first flange 12, the distance between the second web 13 and the first flange 12 is adjusted, two connecting pieces 21 are clamped on two sides of the first flange 12, so that the two connecting pieces 21 can slide along the first flange 12, the connecting pieces 21 are fixed on the second web 13 through two connecting parts such as the first bolts 22 and nuts, the other end of the second web 13 is connected to another first flange 12 according to the same connecting mode, and then the second web 13 is lifted to a proper height through the auxiliary mechanism 3, spacing ring 24 is contradicted all the time by first spring 23 on the first edge of a wing 12, works as when spacing ring 24 contacts the hole groove of mounted position, first spring 23 resets with spacing ring 24 propelling movement block arrives on the first edge of a wing 12, two at second web 13 both ends spacing ring 24 block simultaneously two differences on the first edge of a wing 12, thereby can with second web 13 is fixed temporarily to required mounted position, need not the manpower and adjusts connecting piece 21 with slotted hole between the first edge of a wing 12 to the butt joint speed between vertical beam and the crossbeam has been improved, and the adjustment installation position that need not the manpower hard has improved the packaging efficiency.

Specifically, the auxiliary mechanism 3 includes first connecting rods 31, first connecting rods 31 are respectively rotatably connected to two sides of the first web 11, and a fixing rod 32 is fixedly connected between the first connecting rods 31.

Specifically, a sliding groove 33 is formed in the first web 11, a sliding rod 34 is slidably connected to the sliding groove 33, two ends of the sliding rod 34 are respectively and fixedly connected with a supporting rod 35, the supporting rod 35 is rotatably connected with the first connecting rod 31, and one of the second flanges 14 is rotatably connected with a pull ring 36; through the setting of complementary unit 3 and then can assist the promotion the height of subassembly, convenience on the supporting mechanism 1 the better assembly operation that carries on of equipment mechanism 2, promptly: when the second web 13 needs to move along the first flange 11, the first connecting rod 31 is rotated, the first connecting rod 31 drives the supporting rod 35, the supporting rod 35 drives the sliding rod 34 to slide along the sliding groove 33, after the sliding rod 34 slides to the clamping position, the sliding rod 34 limits the supporting rod 35, the supporting rod 35 supports the first connecting rod 31, so that the first connecting rod 31 is located at a position perpendicular to the first flange 12, at this time, a hoisting iron block can be hung on the fixing rod 32, the clamping ring 36 is operated, the pulling ring 36 deflects to the top end of the second flange 14, a hook is hung on the pulling ring 36, at this time, the iron block is started to pull the second web 13 to lift the height along the first flange 12, so that the use of an auxiliary hoisting tool is facilitated, and the assembly efficiency is further improved, the hidden folding design of the pull ring 36 and the fixing rod 32 facilitates hidden storage, and avoids the protrusion from obstructing the use of a later steel structure.

Specifically, the routing mechanism 4 includes a first pipe 41, the first pipe 41 is disposed between the second web 13 and the second flange 14, a second pipe 42 is disposed on one side of the first web 11, and a tee 43 is disposed between the first pipe 41 and the second pipe 42.

Specifically, a plurality of elastic buckles 44 are sleeved on the outer sides of the first pipeline 41 and the second pipeline 42, two ends of each elastic buckle 44 are clamped with a clamping block 45, and the plurality of clamping blocks 45 are uniformly and fixedly connected to the first web plate 11 and the second web plate 13.

Specifically, the docking mechanism 5 includes a limit ring 51, the end of the tee 43 is slidably connected with the limit ring 51, the tee 43 is fixedly connected with a projection 52, a second spring 53 is abutted between the projection 52 and the limit ring 51, the limit ring 51 is abutted with a plurality of steel balls 54, and the steel balls 54 are abutted with the second pipeline 42; through walk setting up of line mechanism 4 and then with concealed installation such as fire-fighting pipeline or cable arrive on supporting mechanism 1, through docking mechanism 5 set up and then be convenient for connect fast between the pipeline and switch on, improve the installation and use walk the efficiency of line mechanism 4, promptly: when cables need to be arranged between the vertical beams and the transverse beams, in order to improve the insulation effect between the cables and the metal materials, pipelines need to be sleeved outside the cables, the cables pass through the first pipeline 41, the tee 43 and the second pipeline 42, then the corresponding limiting rings 51 slide, the first pipeline 41 and the second pipeline 42 are inserted into the tee 43, the limiting rings 51 are not held, the second springs 53 are abutted against the steel balls 54 in the automatic resetting process, the steel balls 54 are abutted against the first pipeline 41 and the second pipeline 42, so that the function of quickly connecting the pipelines is achieved, when the first pipeline 41 is fixed, the elastic buckles 44 are pinched and clamped onto the clamping blocks 45, the second pipeline 42 is fixed in sequence according to the mode, and the connecting and fixing effects of the pipelines are further greatly improved, with the pipeline secretly adorn the rational in infrastructure space of having utilized that the operation is vacant on the steel construction, and hidden mounting means has increased the pleasing to the eye degree and the standardization of walking the line, makes things convenient for later stage circuit transformation.

When the invention is used, the first web plate 11 and the first flange 12 form a supporting vertical beam, the second web plate 13 and the second flange 14 form a beam, when the beam is needed to be butted on the vertical beam, firstly, one end of the second web plate 13 is vertically opposite to one side of the bottom end of the first flange 12, the distance between the second web plate 13 and the first flange 12 is adjusted, two connecting pieces 21 are clamped on two sides of the first flange 12, so that the two connecting pieces 21 can slide along the first flange 12, the connecting pieces 21 are fixed on the second web plate 13 through two connecting components such as a first bolt 22, a nut and the like, the other end of the second web plate 13 is connected on the other first flange 12 according to the same connecting mode, then, the second web plate 13 is lifted to a proper height through the auxiliary mechanism 3, the limiting ring 24 is always propped on the first flange 12 by the first spring 23, when the limiting ring 24 is contacted with a hole groove at an installation position, the first spring 23 is reset, the limiting rings 24 are pushed and clamped to the first flanges 12, the two limiting rings 24 at the two ends of the second web 13 are clamped to the two different first flanges 12 at the same time, so that the second web 13 can be temporarily fixed to a required mounting position, a slotted hole between the connecting piece 21 and the first flanges 12 does not need to be adjusted manually, the butt joint speed between the vertical beam and the transverse beam is increased, the mounting position does not need to be adjusted manually and laboriously, and the assembly efficiency is improved; when the second web 13 needs to move along the first flange 11, the first connecting rod 31 is rotated, the first connecting rod 31 drives the supporting rod 35, the supporting rod 35 drives the sliding rod 34 to slide along the sliding chute 33, when the sliding rod 34 slides to the clamping position, the sliding rod 34 limits the position of the supporting rod 35, the supporting rod 35 supports the first connecting rod 31, so that the first connecting rod 31 is positioned at a position vertical to the first flange 12, the hoist for hoisting can be hung on the fixing rod 32 at this time, the snap ring 36 is operated, the pull ring 36 is deflected to the top end of the second flange 14, the hook is hung on the pull ring 36 in a matching manner, at this time, the hoist is started to pull the second web 13 to lift the height along the first flange 12, the use of an auxiliary hoisting tool is facilitated, the assembly efficiency is further improved, the hidden folding design of the pull ring 36 and the fixed rod 32 facilitates the hidden storage, and the protrusion is prevented from hindering the use of a later steel structure; when cables need to be arranged between the vertical beams and the transverse beams, in order to improve the insulation effect between the cables and metal materials, the pipelines need to be sleeved outside the cables, the cables pass through the first pipeline 41, the tee joint 43 and the second pipeline 42, then the corresponding limiting rings 51 slide, the first pipeline 41 and the second pipeline 42 are inserted into the tee joint 43, the limiting rings 51 are not held, the second springs 53 automatically reset and abut against the steel balls 54, the steel balls 54 abut against the first pipeline 41 and the second pipeline 42, so that the effect of quickly connecting the pipelines is achieved, when the first pipeline 41 is fixed, the elastic buckles 44 are held and clamped on the clamping blocks 45, the second pipeline 42 is sequentially fixed according to the mode, the connecting and fixing effects of the pipelines are greatly improved, the operation of embedding the pipelines on a steel structure reasonably utilizes the vacant space, and the hidden installation mode increases the attractiveness and standardization, the line transformation in later period is facilitated.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

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