Water distributor assembly and water softener

Abstract

The utility model provides a kind of lower water distributor assembly and water softener, lower water distributor assembly includes lower water distributor, lower water distributor has accommodating cavity, lower water distributor assembly further includes flow passage extension piece and drive mechanism, multiple flow passage extension pieces are interval arranged along the circumferential direction of lower water distributor, each flow passage extension piece is slid along the radial direction of lower water distributor in lower water distributor, the surface of flow passage extension piece has water distribution hole, water distribution hole is communicated with accommodating cavity by the inner cavity of flow passage extension piece, drive mechanism is used to drive all flow passage extension pieces to slide along the radial direction of lower water distributor.Each flow passage extension piece can be telescopic along the radial direction of lower water distributor under the action of drive mechanism, when lower water distributor assembly is placed in resin tank, flow passage extension piece can be retracted by operating drive mechanism, after lower water distributor is placed in resin tank, flow passage extension piece can be unfolded by operating drive mechanism, so that flow passage can be extended to the position away from lower water distributor, improve water distribution and regeneration effect.

Description

Technical Field

[0001] This utility model relates to a water distributor assembly and a water softener. Background Technology

[0002] Currently, water softeners generally use softening resin to soften tap water. After a certain amount of tap water passes through, the softening capacity of the resin decreases, requiring regeneration. Regeneration brine flows through a central pipe into the lower distributor. The lower distributor has many fine holes through which the brine flows out, regenerating the softening resin in the resin tank. Currently, the resin tank is limited by the structure of the water softener's valve head, and the inlet size is generally much smaller than the tank's diameter. To allow the lower distributor to fit into the resin tank through the inlet, its size is designed to be relatively small. During regeneration, because the lower distributor is small, the brine flow is mainly concentrated in the central area of ​​the resin tank, resulting in poor regeneration of resin further away from the center. This wastes brine and leads to poor softening performance in the regenerated resin. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a water distributor assembly and a water softener.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] A lower water distributor assembly includes a lower water distributor having a receiving cavity. The lower water distributor assembly further includes flow channel extension members and a driving mechanism. A plurality of flow channel extension members are spaced apart along the circumferential direction of the lower water distributor. Each flow channel extension member is slidably disposed on the lower water distributor along the radial direction of the lower water distributor. The surface of the flow channel extension member has water distribution holes, which communicate with the receiving cavity through the inner cavity of the flow channel extension member. The driving mechanism is used to drive all the flow channel extension members to slide along the radial direction of the lower water distributor.

[0006] In this design, the lower water distributor assembly is equipped with multiple flow channel extension components. Each flow channel extension component can extend and retract radially along the lower water distributor under the action of a drive mechanism. When the lower water distributor assembly is placed into the resin tank, the flow channel extension components can be retracted by operating the drive mechanism. After the lower water distributor is placed into the resin tank, the flow channel extension components can be extended by operating the drive mechanism, allowing the flow channels to extend to a position away from the lower water distributor. During regeneration, this allows the brine to flow into the resin away from the center, improving the resin regeneration effect. Simultaneously, it also improves the water distribution effect during water production.

[0007] Preferably, the lower water distributor assembly further includes a central tube, one end of which is connected to the lower water distributor, and the inner cavity of the central tube communicates with the receiving cavity.

[0008] In this scheme, the central tube forms the inlet and outlet channels of the lower water distributor. During water production, the softened water collected by the lower water distributor flows out through the inner cavity of the central tube. During resin regeneration, brine is injected into the receiving cavity of the lower water distributor through the inner cavity of the central tube, and then dispersed into the resin tank through the flow channel extension for resin regeneration.

[0009] Preferably, the driving mechanism includes a push rod and a first elastic element. The push rod passes through the central tube and has a driving part at its lower end. The driving part has a cone-shaped structure that is larger at the top and smaller at the bottom. The flow channel extension has a stop portion. The driving part is used to push against the stop portion to make the flow channel extension slide outward in the radial direction. The two ends of the first elastic element are respectively connected to the lower water distributor and the flow channel extension. The first elastic element applies a force to make the flow channel extension slide inward in the radial direction.

[0010] In this design, the drive unit has a cone-shaped structure, wider at the top and narrower at the bottom. This facilitates the conversion of the downward force of the push rod into a force perpendicular to the cone's surface, allowing the flow channel extension to slide outwards radially. When the push rod moves downwards, its drive unit abuts against the abutment part of the flow channel extension, applying a force to the abutment part and causing it to slide outwards. When the push rod slides upwards, the force applied by the drive unit to the abutment part is removed, and the flow channel extension slides inwards under the action of the first elastic element, returning it to its original position in the middle of the lower water distributor. Therefore, by moving the push rod up and down, the extension and retraction functions of the flow channel extension can be achieved.

[0011] Of course, in other alternative solutions, the push rod can be replaced by a traction rope. By pulling the traction rope, the flow channel extension can be retracted. When the traction rope is released, the flow channel extension can be extended under the force of the first elastic element.

[0012] Preferably, the driving part has an inclined driving surface, the abutting part has an inclined contact surface, the driving surface and the contact surface are arranged in a one-to-one correspondence, and the driving surface is used to contact and abut the contact surface.

[0013] In this solution, the drive unit makes contact with the contact surface of the flow channel extension component through the drive surface, thereby increasing the force-bearing area, keeping the direction of the driving force constant, and ensuring smooth transmission. The surface contact transmission also reduces wear between the two components and extends their service life.

[0014] Preferably, the drive mechanism further includes a second elastic element, which is disposed in the middle of the receiving cavity. One end of the second elastic element is connected to the inner wall of the lower water distributor, and the other end of the second elastic element is disposed corresponding to the end of the drive part. The second elastic element applies a force that causes the drive part to move upward.

[0015] In this design, when the push rod moves downward to the end of the drive unit and contacts the second elastic element, the second elastic element applies a force that causes the push rod to move upward. That is, after the operator removes the force applied to the push rod, the push rod slides upward under the force of the second elastic element, thereby releasing the force applied by the push rod to the flow channel extension member. This facilitates the push rod to return to the upper end and the flow channel extension member to the middle of the lower water distributor.

[0016] Preferably, the lower water distributor assembly further includes a locking mechanism for locking the push rod. The locking mechanism includes a locking member, the two ends of which are detachably connected to the push rod and the central tube, respectively.

[0017] In this design, when the locking element is connected to the push rod and the central tube at both ends, the locking element locks the position of the push rod, thereby locking the extension position of the flow channel extension component. This allows the flow channel extension component to be held in the required position, enabling the flow channel extension of the lower water distributor. When the locking element is removed from the central tube and the push rod, the push rod is unlocked.

[0018] Preferably, the locking element is a locking ring, the upper end of the push rod has a limiting structure, the locking ring is embedded in the central tube and can rotate, the locking ring is used to abut against the upper end of the limiting structure, the outer peripheral surface of the locking ring has a protrusion, the inner wall of the central tube has an L-shaped groove, the L-shaped groove includes a vertical groove and a horizontal groove, the protrusion can slide into or out of the horizontal groove through the vertical groove, and the protrusion can be engaged in the horizontal groove.

[0019] In this design, the locking ring is embedded in the central tube and abuts against the limiting structure of the push rod. The locking ring is secured in the horizontal groove by a protrusion, thus locking the push rod. Because the locking ring has a channel in the middle, water can flow through it regardless of its position, without affecting water production and regeneration. To lock, first align the protrusion of the locking ring with the vertical groove, then press the locking ring down. The locking ring presses against the limiting structure of the push rod, moving the protrusion to the position in the horizontal groove. Then rotate the locking ring to lock the protrusion in the horizontal groove. To unlock, rotate the locking ring in the opposite direction, causing the protrusion to slide out of the horizontal groove and then out through the vertical groove.

[0020] Preferably, the lower water distributor assembly further includes a locking mechanism for locking the drive mechanism to keep the flow channel extension in an extended or retracted state.

[0021] In this solution, the locking mechanism will lock the drive mechanism, thereby locking the extended position of the flow channel extension, so that the flow channel extension is kept in the required position and the flow channel of the water distributor is extended.

[0022] Preferably, the outer peripheral surface of the lower water distributor has mounting holes, and the mounting holes are provided one-to-one with the flow channel extension members. The flow channel extension members pass through the mounting holes, and one end of the flow channel extension member located in the receiving cavity has a connecting hole. The inner cavity of the flow channel extension member is connected to the receiving cavity through the connecting hole.

[0023] In this design, the flow channel extension is installed within the mounting hole and can slide in and out of the hole. The mounting hole serves both to install the flow channel extension and to guide it. Alternatively, in other embodiments, other guiding structures (rails or grooves) can be used to install the flow channel extension on the lower water distributor, allowing it to slide in and out. The water distribution holes on the flow channel extension are connected to the receiving cavity of the lower water distributor via connecting holes, allowing the brine injected into the lower water distributor to flow into the flow channel extension through the connecting holes and then out through the flow holes on the flow channel extension.

[0024] A water softener comprising a lower water distributor assembly as described above.

[0025] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0026] The significant advantages of this invention are as follows: The lower water distributor assembly has multiple channel extension components installed on it. Each extension component can extend and retract radially along the lower water distributor under the action of a drive mechanism. When the lower water distributor assembly is placed into the resin tank, the extension component can be retracted by operating the drive mechanism. After the lower water distributor is placed in the resin tank, the extension component can be extended by operating the drive mechanism, allowing the channel to extend to a position away from the lower water distributor. During regeneration, this allows the brine to flow into the resin away from the center, improving the resin regeneration effect. Simultaneously, it also improves the water distribution effect during water production. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the lower water distributor assembly according to a preferred embodiment of the present invention. Figure 1 .

[0028] Figure 2 This is a schematic diagram of the structure of the lower water distributor assembly according to a preferred embodiment of the present invention. Figure 2 .

[0029] Figure 3 for Figure 2Cross-sectional view along line AA.

[0030] Figure 4 This is a schematic diagram of the structure of the lower water distributor assembly according to a preferred embodiment of the present invention. Figure 3 .

[0031] Figure 5 for Figure 4 Enlarged view of section B.

[0032] Figure 6 This is a schematic diagram of the structure of the central tube in a preferred embodiment of the present invention.

[0033] Figure 7 This is a structural schematic diagram of the lower water distributor assembly behind the hidden central tube in a preferred embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] Water distributor 1

[0036] Receiving cavity 11

[0037] Flow channel extension 2

[0038] Water distribution hole 21

[0039] 22nd Reservoir

[0040] Contact surface 221

[0041] Drive mechanism 3

[0042] Putter 31

[0043] Drive Unit 311

[0044] Drive surface 3111

[0045] First elastic element 32

[0046] Second elastic element 33

[0047] Limiting structure 34

[0048] Central tube 4

[0049] L-shaped slot 41

[0050] Vertical slot 411

[0051] Horizontal groove 412

[0052] Locking mechanism 5

[0053] Locking component 51

[0054] 511 protrusions Detailed Implementation

[0055] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0056] like Figures 1-7 As shown, this embodiment discloses a lower water distributor assembly, which includes a lower water distributor 1 with a receiving cavity 11. The lower water distributor assembly also includes a flow channel extension 2 and a driving mechanism 3. Multiple flow channel extensions 2 are spaced apart along the circumferential direction of the lower water distributor 1. Each flow channel extension 2 is slidably disposed on the lower water distributor 1 along the radial direction of the lower water distributor 1. The surface of the flow channel extension 2 has a water distribution hole 21, which communicates with the receiving cavity 11 through the inner cavity of the flow channel extension 2. The driving mechanism 3 is used to drive all the flow channel extensions 2 to slide along the radial direction of the lower water distributor 1.

[0057] like Figures 1-7 As shown, the lower water distributor assembly has multiple channel extension components 2 installed on the lower water distributor 1. Each channel extension component 2 can extend and retract radially along the lower water distributor 1 under the action of the drive mechanism 3. When the lower water distributor assembly is placed into the resin tank, the channel extension component 2 can be retracted by operating the drive mechanism 3. After the lower water distributor 1 is placed into the resin tank, the channel extension component 2 can be extended by operating the drive mechanism 3, allowing the channel to extend to a position away from the lower water distributor 1. The resin tank contains resin particles, which encapsulate the lower water distributor 1. During regeneration, this allows the brine to flow to the resin away from the center, improving the resin regeneration effect. Simultaneously, it also improves the water distribution effect during water production.

[0058] like Figures 1-4 As shown, the outer peripheral surface of the lower water distributor 1 has mounting holes, which are correspondingly arranged with the flow channel extension 2. The flow channel extension 2 passes through the mounting holes, and one end of the flow channel extension 2 located in the receiving cavity 11 has a connecting hole. The inner cavity of the flow channel extension 2 is connected to the receiving cavity 11 through the connecting hole. The flow channel extension 2 is installed in the mounting hole and can slide in and out of the mounting hole. The mounting hole is used both to install the flow channel extension 2 and to guide the flow channel extension 2. Of course, in other embodiments, other guiding structures (slide rails or slide grooves) can also be used to install the flow channel extension on the lower water distributor, allowing the flow channel extension to slide in or out.

[0059] like Figure 3 As shown, the water distribution hole 21 on the flow channel extension 2 is connected to the receiving cavity 11 of the lower water distributor 1 through the connecting hole, so that the brine injected into the lower water distributor 1 can flow into the flow channel extension 2 through the connecting hole and then flow out from the flow hole on the flow channel extension 2, thereby achieving the purpose of extending the flow channel on the water distributor.

[0060] like Figures 1-4As shown, the lower water distributor assembly also includes a central tube 4, one end of which is connected to the lower water distributor 1. The inner cavity of the central tube 4 communicates with the receiving cavity 11. The central tube 4 forms the inlet and outlet channels of the lower water distributor 1. During water production, the softened water collected by the lower water distributor 1 flows out through the inner cavity of the central tube 4. During resin regeneration, brine is injected into the receiving cavity 11 of the lower water distributor 1 through the inner cavity of the central tube 4, and then dispersed into the resin tank through the flow channel extension 2 for resin regeneration.

[0061] like Figure 3 As shown, the drive mechanism 3 includes a push rod 31 and a first elastic element 32. The push rod 31 passes through the central tube 4, and its lower end has a drive portion 311. The drive portion 311 has a cone-shaped structure that is larger at the top and smaller at the bottom. The flow channel extension 2 has a stop portion 22. The drive portion 311 is used to slide downward against the stop portion 22, so that the flow channel extension 2 slides outward in the radial direction. The two ends of the first elastic element 32 are respectively connected to the lower water distributor 1 and the flow channel extension 2. The first elastic element 32 applies a force that causes the flow channel extension 2 to slide inward in the radial direction. The drive portion 311 has a cone-shaped structure that is larger at the top and smaller at the bottom, which facilitates the conversion of the downward force of the push rod 31 into a force perpendicular to the surface of the cone, thereby enabling the flow channel extension 2 to slide outward in the radial direction. When push rod 31 moves downward, the driving part 311 of push rod 31 abuts against the abutting part 22 of flow channel extension 2, and the driving part 311 applies a force to the abutting part 22, causing the flow channel extension 2 to slide outward. When push rod 31 slides upward, the force applied by the driving part 311 to the abutting part 22 is removed, and the flow channel extension 2 slides inward under the action of the first elastic element 32, so that the flow channel extension 2 returns to the middle position of the lower water distributor 1. It can be seen that by moving push rod 31 up and down, the extension and retraction functions of flow channel extension 2 can be realized.

[0062] Of course, in other alternative embodiments, the push rod can be replaced by a traction rope, which retracts the flow channel extension by pulling the traction rope, and extends the flow channel extension under the force of the first elastic element when the traction rope is released.

[0063] like Figure 3 As shown, the drive unit 311 has an inclined drive surface 3111, and the abutment part 22 has an inclined contact surface 221. The drive surface 3111 and the contact surface 221 are arranged in a one-to-one correspondence. The drive surface 3111 is used to contact and push against the contact surface 221. The drive unit 311 contacts the contact surface 221 of the flow channel extension member 2 through the drive surface 3111, realizing surface contact, increasing the force-bearing area, making the direction of the driving force constant, and ensuring smooth transmission. Surface contact transmission also reduces wear between the two and extends service life.

[0064] like Figure 3As shown, the drive mechanism 3 also includes a second elastic element 33, which is disposed in the middle of the receiving cavity 11. One end of the second elastic element 33 is connected to the inner wall of the lower water distributor 1, and the other end of the second elastic element 33 is correspondingly disposed with respect to the end of the drive part 311. The second elastic element 33 applies a force that causes the drive part 311 to move upward. When the push rod 31 moves downward until the end of the drive part 311 contacts the second elastic element 33, the second elastic element 33 applies a force that causes the push rod 31 to move upward. That is, after the operator removes the force applied to the push rod 31, the push rod 31 slides upward under the force of the second elastic element 33, thereby releasing the force applied by the push rod 31 to the flow channel extension 2. This facilitates the push rod 31 to return to its upper end and the flow channel extension 2 to return to the middle of the lower water distributor 1.

[0065] like Figures 4-7 As shown, the lower water distributor assembly also includes a locking mechanism 5, which is used to lock the push rod 31. The locking mechanism 5 includes a locking member 51, the two ends of which are detachably connected to the push rod 31 and the central tube 4, respectively. When the two ends of the locking member 51 are connected to the push rod 31 and the central tube 4, the locking member 51 locks the position of the push rod 31, thereby locking the extension position of the flow channel extension member 2, so that the flow channel extension member 2 can be kept in the required position, realizing the flow channel extension of the lower water distributor. When the locking member 51 is removed from the central tube 4 and the push rod 31, the push rod 31 is unlocked. In an optional embodiment, through holes are provided on both the push rod and the central tube. By using the locking member to pass through the through holes, the push rod and the central tube can be locked, and removing the locking member can unlock the push rod.

[0066] like Figures 4-7 As shown, the locking element 51 is a locking ring. The upper end of the push rod 31 has a limiting structure 34. The locking ring is embedded in the central tube 4 and can rotate. The locking ring is used to abut against the upper end of the limiting structure 34. The outer circumferential surface of the locking ring has a protrusion 511. The inner wall of the central tube 4 has an L-shaped groove 41, which includes a vertical groove 411 and a horizontal groove 412. The protrusion 511 can slide into or out of the horizontal groove 412 through the vertical groove 411, and the protrusion 511 can be locked in the horizontal groove 412. The locking ring is embedded in the central tube 4 and abuts against the limiting structure 34 of the push rod 31. The locking ring is embedded in the horizontal groove 412 through the protrusion 511, thus locking the push rod 31. Since the locking ring has a channel in the middle, water can flow through the locking ring through the channel regardless of the state of the locking ring, without affecting water production and regeneration. When locking, first align the protrusion 511 of the locking ring with the vertical groove 411, then press down on the locking ring. The locking ring presses against the limiting structure 34 of the push rod 31, causing the protrusion 511 to move to the position of the horizontal groove 412. Then rotate the locking ring to make the protrusion 511 lock in the horizontal groove 412, thus achieving locking. When unlocking, rotate the locking ring in the opposite direction to make the protrusion 511 slide out of the horizontal groove 412, and then slide out through the vertical groove 411.

[0067] like Figures 5-7 As shown, in this embodiment, two protrusions 511 are symmetrically arranged on both sides of the locking ring, and two L-shaped slots 41 are symmetrically arranged on the inner wall of the central tube 4, so that the two protrusions 511 are respectively matched with the two L-shaped slots 41, so that the locking ring is subjected to uniform force and the locking effect of the locking ring is improved.

[0068] In an optional embodiment, the lower water distributor assembly further includes a locking mechanism for locking the drive mechanism to keep the flow channel extension in an extended or retracted state. The locking mechanism locks the drive mechanism, thereby locking the extended position of the flow channel extension, facilitating its retention in the desired position and enabling the flow channel extension of the water distributor. Besides the locking mechanism of the locking ring or locking element described in this application, other existing mechanisms capable of locking the drive mechanism can also be used. As long as the position of the flow channel extension is fixed, the locking function can be achieved; their specific structures will not be described in detail here.

[0069] In this embodiment, the outer wall of the lower water distributor 1 is also provided with several water distribution holes. During water production, the water distribution holes facilitate the dispersion of some salt water near the water distributor. During water production, the water distribution holes also facilitate the collection of softened water into the lower water distributor.

[0070] This embodiment also discloses a water softener, which includes the lower water distributor assembly as described above.

[0071] In the description herein, it should be understood that the terms "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0072] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A lower water distributor assembly, comprising a lower water distributor having a receiving cavity, characterized in that, The lower water distributor assembly further includes a flow channel extension component and a driving mechanism. Multiple flow channel extension components are spaced apart along the circumferential direction of the lower water distributor. Each flow channel extension component is slidably disposed on the lower water distributor along the radial direction of the lower water distributor. The surface of the flow channel extension component has a water distribution hole, which communicates with the receiving cavity through the inner cavity of the flow channel extension component. The driving mechanism is used to drive all the flow channel extension components to slide along the radial direction of the lower water distributor.

2. The water distributor assembly as described in claim 1, characterized in that, The lower water distributor assembly also includes a central tube, one end of which is connected to the lower water distributor, and the inner cavity of the central tube is in communication with the receiving cavity.

3. The water distributor assembly as described in claim 2, characterized in that, The driving mechanism includes a push rod and a first elastic element. The push rod passes through the central tube and has a driving part at its lower end. The driving part has a cone-shaped structure that is larger at the top and smaller at the bottom. The flow channel extension has a stop part. The driving part is used to push against the stop part to make the flow channel extension slide outward in the radial direction. The two ends of the first elastic element are respectively connected to the lower water distributor and the flow channel extension. The first elastic element applies a force to make the flow channel extension slide inward in the radial direction.

4. The water distributor assembly as described in claim 3, characterized in that, The driving part has an inclined driving surface, and the abutting part has an inclined contact surface. The driving surface and the contact surface are arranged in a one-to-one correspondence, and the driving surface is used to contact and push against the contact surface.

5. The water distributor assembly as described in claim 3, characterized in that, The driving mechanism further includes a second elastic element, which is disposed in the middle of the receiving cavity. One end of the second elastic element is connected to the inner wall of the lower water distributor, and the other end of the second elastic element is disposed corresponding to the end of the driving part. The second elastic element applies a force that causes the driving part to move upward.

6. The water distributor assembly as described in claim 3, characterized in that, The lower water distributor assembly also includes a locking mechanism for locking the push rod. The locking mechanism includes a locking member, the two ends of which are detachably connected to the push rod and the central tube, respectively.

7. The water distributor assembly as described in claim 6, characterized in that, The locking element is a locking ring. The upper end of the push rod has a limiting structure. The locking ring is embedded in the central tube and can rotate. The locking ring is used to abut against the upper end of the limiting structure. The outer circumferential surface of the locking ring has a protrusion. The inner wall of the central tube has an L-shaped groove. The L-shaped groove includes a vertical groove and a horizontal groove. The protrusion can slide into or out of the horizontal groove through the vertical groove, and the protrusion can be engaged in the horizontal groove.

8. The water distributor assembly as described in claim 1, characterized in that, The lower water distributor assembly also includes a locking mechanism for locking the drive mechanism so that the flow channel extension is in an extended or retracted state.

9. The water distributor assembly as described in claim 1, characterized in that, The outer peripheral surface of the lower water distributor has mounting holes, and the mounting holes are provided one-to-one with the flow channel extension. The flow channel extension passes through the mounting holes, and one end of the flow channel extension located in the receiving cavity has a connecting hole. The inner cavity of the flow channel extension is connected to the receiving cavity through the connecting hole.

10. A water softener, characterized in that, The water softener includes a water distributor assembly as described in any one of claims 1-9.

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