Locking structure convenient to install and fan lamp

Abstract

The utility model provides a locking structure convenient to install and a fan lamp, and belongs to the technical field of hanging devices, the locking structure comprises a guiding and hanging device, an installation base, a fixing disc and a locking piece, the guiding and hanging device is used for being connected with the fixing base, and the guiding and hanging device is provided with a fixing part stretching and retracting in the radial direction; the mounting seat is provided with an avoiding hole matched with the guiding and hanging device, the guiding and hanging device is inserted into the avoiding hole, the fixing part is clamped and matched with the mounting seat, and the mounting seat is further provided with a first mounting hole; a second mounting hole matched with the first mounting hole is formed in the fixed disc; and a locking piece is inserted into the first mounting hole and the second mounting hole and is used for connecting the mounting seat and the fixed disc. The utility model provides a locking structure convenient to install and a fan lamp and aims to solve the problems that in the prior art, a fan lamp is inconvenient to install, and a fixing base is prone to being damaged in the installation process.

Description

Technical Field

[0001] This utility model belongs to the field of suspension device technology, and more specifically, it relates to a locking structure and fan light that are easy to install. Background Technology

[0002] A ceiling fan light is an appliance that combines the functions of a chandelier and a ceiling fan. In addition to basic functions such as lighting and ventilation, it also serves a decorative purpose, which is why ceiling fan lights are becoming increasingly popular. Current technology typically involves pre-installing a mounting bracket on the ceiling and attaching a hanger to the light fixture, using the hanger to engage with the mounting bracket to secure the ceiling fan light.

[0003] During installation, the hanger is typically connected to the lamp body first, and then snapped into the mounting bracket. To reduce resistance during this process, a rotating and pushing motion is used. Because the lamp body is relatively heavy and bulky, the weight increases further after connecting it to the hanger. Therefore, installation requires not only supporting the lamp body and hanger but also proper alignment, demanding a high level of physical strength and expertise from the installers. Furthermore, if the lamp body has a large diameter, the rotational lever arm increases accordingly, making it highly susceptible to damage to the mounting bracket due to improper force during installation. Utility Model Content

[0004] The purpose of this utility model is to provide an easy-to-install locking structure and fan light, aiming to solve the problems of inconvenient installation of fan lights and easy damage to the fixing base during installation in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] Firstly, a locking structure that is easy to install is provided, comprising:

[0007] A hanger for connection to a fixed base, the hanger having a fixing part that extends and retracts radially;

[0008] The mounting base has a clearance hole adapted to the hanger, the hanger is inserted into the clearance hole, the fixing part is engaged with the mounting base, and the mounting base also has a first mounting hole;

[0009] The fixed plate has a second mounting hole adapted to the first mounting hole; and

[0010] A locking element is inserted into the first mounting hole and the second mounting hole to connect the mounting base and the fixing plate.

[0011] In conjunction with the first aspect, in one possible implementation, the attach device includes:

[0012] A guide bracket is used to connect with a fixed base, and a receiving groove is provided on the outer peripheral surface of the guide bracket;

[0013] A hook-on block is slidably inserted into the receiving groove along the radial direction of the hook-on base, and the hook-on block is used to engage with the mounting base; and

[0014] A first elastic element is connected to the hook block and the mounting base respectively. The first elastic element is configured with a preload force to keep the hook block and the mounting base in a snap-fit ​​state.

[0015] In conjunction with the first aspect, in one possible implementation, the mounting base includes:

[0016] The mounting plate has the aforementioned clearance hole; and

[0017] A guide cylinder is connected to the mounting plate. The guide cylinder is coaxially arranged with the clearance hole, and the inner diameter of the guide cylinder is not less than the diameter of the clearance hole.

[0018] In conjunction with the first aspect, in one possible implementation, the guide cylinder has a limiting hole adapted to the fixing part along its own radial direction, and the limiting hole is connected to the clearance hole, and the fixing part is inserted into the limiting hole.

[0019] In conjunction with the first aspect, in one possible implementation, the mounting base further includes a limiting module connected to the guide cylinder. The limiting module includes two limiting pieces distributed circumferentially along the guide cylinder, and the limiting hole is located between the two limiting pieces. The limiting pieces are used to limit the fixing part circumferentially.

[0020] In conjunction with the first aspect, in one possible implementation, the easy-to-install locking structure further includes a pre-attached component connected to the mounting base, wherein the fixing plate has a mounting hole adapted to the pre-attached component, and the pre-attached component is inserted into the mounting hole.

[0021] In conjunction with the first aspect, in one possible implementation, the pre-attached component includes a fixing part, a connecting part, and a snap-fit ​​part connected in sequence. The fixing part is connected to the mounting base, and the snap-fit ​​part has a curved hook that is inserted into the mounting hole and engages with the fixing plate.

[0022] In conjunction with the first aspect, in one possible implementation, the mounting base is provided with a buckle, the fixing part engages with the buckle, and the buckle and the fixing part are also provided with corresponding fixing holes, in which fasteners are inserted.

[0023] In conjunction with the first aspect, in one possible implementation, the fixing plate has a receiving groove for accommodating the mounting base, the mounting base is disposed within the receiving groove, the hooking hole communicates radially with the receiving groove along the fixing plate, the outer peripheral surface of the mounting base has a fixing groove, and the pre-hanging member includes:

[0024] A pre-mounted block is slidably inserted into the fixing groove along the radial direction of the mounting base, and the pre-mounted block is inserted into the mounting hole; and

[0025] The second elastic element is connected to the pre-hanging block and the mounting base respectively. The second elastic element is configured with a pre-tightening force to keep the pre-hanging block in an inserted state with the hanging hole.

[0026] The advantages of the easy-to-install locking structure provided by this utility model are as follows: Compared with the prior art, the easy-to-install locking structure of this utility model allows for the following steps: First, connect the hanger to the fixed base. Then, lift the mounting base so that the hanger passes through the clearance hole until the fixing part passes through the mounting hole and engages with the mounting base. After connecting the mounting base and the hanger, lift the fixing plate under the mounting base and adjust its position so that the first mounting hole aligns with the second mounting hole. Insert the locking member into the first and second mounting holes to connect the fixing plate to the mounting base. This utility model adopts a step-by-step installation method, eliminating the need to connect the hanger, mounting base, and fixing plate first and then connect them as a whole to the fixed base, reducing the workload during installation. In addition, the mounting base engages with the hanger, and the fixing plate is connected to the mounting base via the locking member, simplifying the installation process and requiring less expertise from the installers. Moreover, the mounting base has a small size and diameter, so even if rotation is used during installation to reduce engagement resistance, damage to the hanger or mounting base due to excessive lever arm is less likely.

[0027] Secondly, this utility model embodiment also provides a fan light, including the aforementioned easy-to-install locking structure.

[0028] The beneficial effects of the fan light provided by this utility model are as follows: compared with the prior art, it adopts the above-mentioned easy-to-install locking structure, which has similar technical effects to the above-mentioned easy-to-install locking structure, and will not be described in detail here. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1Exploded view of the easy-to-install locking structure provided in the embodiments of this utility model;

[0031] Figure 2 This is a schematic diagram of the mounting base and hanger used in an embodiment of this utility model;

[0032] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0033] Figure 4 This is a schematic diagram of the mounting base and hanger used in another embodiment of the present invention;

[0034] Figure 5 This is a three-dimensional structural diagram of the fan light provided in an embodiment of the present utility model.

[0035] In the diagram: 1. Hanger; 101. Hanger base; 102. Hanging block; 2. Mounting base; 201. Mounting plate; 202. Guide cylinder; 203. Limiting hole; 204. Limiting piece; 205. Buckle; 206. Clearance hole; 3. Fixing plate; 301. Hanging hole; 4. Pre-hanging component; 401. Fixing part; 4011. Fixing hole; 402. Connecting part; 403. Snap-fit ​​part; 404. Pre-hanging block; 5. Locking component. Detailed Implementation

[0036] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0037] In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "first," "second," or "third," etc., are used to distinguish different objects, not to describe a specific order. Unless otherwise stated, other directional terms, such as "vertical," "clockwise," and "counterclockwise," indicate orientation or positional relationships based on the orientation and positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, not to indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this utility model. In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" should be interpreted broadly, that is, any connection method in which there is no displacement relationship or relative rotation relationship between the two, that is, including non-removable fixed connection, detachable fixed connection, integral connection, and fixed connection through other devices or elements. In the claims, description, and accompanying drawings of this utility model, the terms "comprising," "having," and their variations are intended to mean "including but not limited to."

[0038] Please refer to the following: Figures 1 to 4 The present invention provides an easy-to-install locking structure and a fan light. The easy-to-install locking structure includes a hanger 1, a mounting base 2, a fixing plate 3, and a locking element 5. The hanger 1 is used to connect to the fixing base and has a fixing part 401 that extends radially. The mounting base 2 has a clearance hole 206 adapted to the hanger 1, and the hanger 1 is inserted into the clearance hole 206. The fixing part 401 engages with the mounting base 2. The mounting base 2 also has a first mounting hole. The fixing plate 3 has a second mounting hole adapted to the first mounting hole. The locking element 5 is inserted into the first and second mounting holes and is used to connect the mounting base 2 and the fixing plate 3.

[0039] The easy-to-install locking structure provided by this utility model, compared with the prior art, allows for the following steps: First, connect the hanger 1 to the fixed base. Then, lift the mounting base 2 so that the hanger 1 passes through the clearance hole 206 until the fixing part 401 passes through the mounting hole and engages with the mounting base 2. After connecting the mounting base 2 and the hanger 1, lift the fixing plate 3 below the mounting base 2 and adjust its position so that the first mounting hole aligns with the second mounting hole. Insert the locking member 5 into the first and second mounting holes to connect the fixing plate 3 to the mounting base 2. This utility model uses a step-by-step installation method, eliminating the need to connect the hanger 1, mounting base 2, and fixing plate 3 before connecting them as a whole to the fixed base, reducing the workload during installation. Furthermore, the engagement between the mounting base 2 and the hanger 1, and the connection between the fixing plate 3 and the mounting base 2 via the locking member 5, simplify the installation process and require less expertise from the installers. Moreover, the mounting base 2 is small in size and diameter, so even if the rotation method is used to reduce the clamping resistance during installation, it is not easy for the hanger 1 or the mounting base 2 to be damaged due to excessive lever arm.

[0040] It should be noted that the mounting base is pre-installed on the ceiling, and the hanger 1 is screwed, snapped, or hung to the mounting base.

[0041] Optionally, locking element 5 can be a threaded element or a snap-fit ​​element.

[0042] Optionally, the locking component 5 includes a bolt and a nut adapted to the bolt. After the bolt is inserted into the first mounting hole and the second mounting hole, the nut is tightened to lock the bolt, thus connecting the mounting base 2 and the fixed plate 3. Alternatively, the bolt can be inserted into the first mounting hole first, then the fixed plate 3 can be connected to the mounting base 2, so that the bolt is inserted into the second mounting hole, and finally the bolt and nut are tightened. This method eliminates the need for alignment and positioning when installing the fixed plate 3, improving installation efficiency.

[0043] Optionally, the locking element 5 is inserted into the first mounting hole and is fixedly or detachably connected to the mounting base 2. When installing the fixing plate 3, there is no need to adjust the position to align the first mounting hole and the second mounting hole, which improves the installation efficiency.

[0044] Optionally, a sponge is provided on the top of the mounting base 2. The existing mounting base 2 is lifted upward and pressed against the ceiling. The sponge on the top of the mounting base 2 will elastically deform when compressed, avoiding rigid contact between the mounting base and the ceiling, so as to make the mounting base 2 more stable and reduce the vibration of the whole fan when it is running.

[0045] In some embodiments, please refer to Figures 1 to 4The hanger 1 includes a hanger base 101, a hook block 102, and a first elastic element. The hanger base 101 is used to connect with the fixed base, and a receiving groove is provided on the outer peripheral surface of the hanger base 101. The hook block 102 is slidably inserted into the receiving groove along the radial direction of the hanger base 101, and the hook block 102 is used to engage with the mounting base 2. The first elastic element is connected to the hook block 102 and the hanger base 101 respectively, and the first elastic element is configured with a preload force to keep the hook block 102 and the mounting base 2 engaged.

[0046] In this embodiment, the elastic force of the first elastic element keeps the hook block 102 and the mounting base 2 in a snap-fit ​​state. When the hook block 102 passes through the clearance hole 206, the inner wall of the clearance hole 206 of the mounting base 2 presses against the hook block 102, causing the hook block 102 to slide into the receiving groove against the elastic force of the first elastic element. After the hook block 102 passes out of the clearance groove, the first elastic element resets, causing the hook block 102 to abut against the mounting base 2 in the vertical direction, achieving a snap-fit ​​engagement with the mounting base 2. This solution eliminates the need for external connecting parts 402 to fix the mounting base 2 and the fixing plate 3, simplifying operation and improving installation efficiency.

[0047] Optionally, the first elastic element is a spring.

[0048] In some embodiments, please refer to Figure 2 and Figure 4 The mounting base 2 includes a mounting plate 201 and a guide cylinder 202. The mounting plate 201 has a clearance hole 206. The guide cylinder 202 is connected to the mounting plate 201. The guide cylinder 202 and the clearance hole 206 are coaxially arranged, and the inner diameter of the guide cylinder 202 is not less than the diameter of the clearance hole 206.

[0049] During installation, the guide tube 202 can provide guidance for the hanger 1. After the hanger 1 passes through the guide tube 202, the guide tube 202 can also provide protection for it, preventing external forces from damaging the hanger 1.

[0050] Specifically, the fixing part 401 is engaged with the guide cylinder 202 or the mounting base 2. That is, the fixing part 401 can pass through the guide cylinder 202 and abut against the end of the guide cylinder 202, or a clearance hole can be opened on the guide cylinder 202, and the fixing part 401 can be inserted into the clearance hole and abut against the end face of the mounting plate 201.

[0051] In some embodiments, please refer to Figure 2 and Figure 4 The guide cylinder 202 has a limiting hole 203 adapted to the fixing part 401 along its own radial direction, and the limiting hole 203 is connected to the clearance hole 206, and the fixing part 401 is inserted into the limiting hole 203.

[0052] The fixing part 401 is inserted into the limiting hole 203, so that the fixing part 401 not only abuts against the guide cylinder 202 in the vertical direction, but the guide cylinder 202 can also limit the fixing part 401 in the circumferential direction, which increases the stability and reliability of the mounting base 2 after it is connected to the hanger 1, and prevents the mounting base 2 from moving in the circumferential direction.

[0053] In some embodiments, please refer to Figure 2 and Figure 4 The mounting base 2 also includes a limiting module connected to the guide cylinder 202. The limiting module includes two limiting pieces 204 distributed circumferentially along the guide cylinder 202. The limiting hole 203 is located between the two limiting pieces 204. The limiting pieces 204 are used to limit the fixing part 401 in the circumferential direction.

[0054] The limiting piece 204 not only limits the mounting base 2 in the circumferential direction, but also increases the contact area with the fixing part 401, reduces the pressure on the fixing part 401, avoids damage to the mounting plate 201 or the fixing part 401 after being subjected to external force, and improves the service life of the component.

[0055] In some embodiments, please refer to Figures 1 to 4 The easy-to-install locking structure also includes a pre-attached part 4 connected to the mounting base 2. The fixing plate 3 has a mounting hole 301 adapted to the pre-attached part 4, and the pre-attached part 4 is inserted into the mounting hole 301.

[0056] When installing the mounting plate 3 and the mounting base 2, the pre-hanging component 4 is first inserted into the hanging hole 301 to achieve a pre-connection between the mounting plate 3 and the mounting base 2. Then, the locking component 5 is inserted into the first mounting hole and the second mounting hole. The pre-hanging structure of this embodiment avoids the problem of needing to lift the mounting plate 3 when installing the locking component 5, which not only simplifies the installation process and allows for single-person operation, but also increases the firmness of the connection between the mounting plate 3 and the mounting base 2. If the locking component 5 fails, the mounting plate 3 can still be connected to the mounting base 2 through the pre-hanging component 4, improving the overall connection safety.

[0057] In some embodiments, please refer to Figures 2 to 3 The pre-attached part 4 includes a fixing part 401, a connecting part 402 and a snap-fit ​​part 403 connected in sequence. The fixing part 401 is connected to the mounting base 2. The snap-fit ​​part 403 has a curved hook that is inserted into the hanging hole 301 and engages with the fixing plate 3.

[0058] After the hook passes through the hanging hole 301, it engages with the fixed plate 3, realizing the pre-installation of the fixed plate 3 and the mounting base 2. The structure is simple and the production cost is low.

[0059] Specifically, the axis of the hook hole 301 is parallel to the vertical direction. When the hook passes through the hook hole 301, it is squeezed. After passing through the hook hole 301 completely, it returns to its original position and abuts against the bottom of the fixed plate 3, thereby fixing the fixed plate 3.

[0060] In some embodiments, please refer to Figure 3 The mounting base 2 is provided with a buckle 205, and the fixing part 401 is engaged with the buckle 205. The buckle 205 and the fixing part 401 are also provided with corresponding fixing holes 4011, and fasteners are inserted into the fixing holes 4011.

[0061] The fixing part 401 is snapped into the buckle 205, and the connection between the fixing part 401 and the mounting base 2 is achieved by inserting a fastener into the corresponding fixing hole 4011. In this embodiment, not only is it possible to eliminate the need for alignment and positioning of the fixing part 401 and the mounting base 2, thus improving the connection efficiency, but the combination of snapping and plugging also enhances the connection's robustness.

[0062] Optional fasteners can be snap-fit ​​or threaded fasteners.

[0063] In some embodiments, please refer to Figure 4 The fixed plate 3 has a receiving groove for accommodating the mounting base 2. The mounting base 2 is located in the receiving groove. The hanging hole 301 is radially connected to the receiving groove along the fixed plate 3. The outer peripheral surface of the mounting base 2 has a fixing groove. The pre-hanging component 4 includes a pre-hanging block 404 and a second elastic component. The pre-hanging block 404 is slidably inserted into the fixing groove along the radial direction of the mounting base 2. The pre-hanging block 404 is inserted into the hanging hole 301. The second elastic component is connected to the pre-hanging block 404 and the mounting base 2 respectively. The second elastic component is configured with a pre-tightening force to keep the pre-hanging block 404 and the hanging hole 301 in an inserted state.

[0064] The mounting base 2 is inserted into the receiving groove. The inner wall of the fixing plate 3 presses against the hanging block 102, compressing the second elastic element. After the hanging block 102 aligns with the fixing groove, the second elastic element resets, allowing the hanging block 102 to insert into the fixing groove. Under the action of the second elastic element, the hanging block 102 remains in an inserted state with the hanging hole 301, achieving locking between the fixing plate 3 and the mounting base 2. This embodiment uses an insertion method to achieve pre-installation of the fixing plate 3 and the mounting base 2, which is simple in structure, convenient in operation, and improves installation efficiency.

[0065] Based on the same inventive concept, this utility model also provides a fan light. Please refer to [link / reference]. Figure 5 The fan light includes the aforementioned easy-to-install locking structure.

[0066] The fan light provided by this utility model adopts a locking structure that facilitates installation. In use, the hanger 1 is first connected to the mounting base, then the mounting base 2 is lifted so that the hanger 1 passes through the clearance hole 206 until the fixing part 401 passes through the mounting hole and engages with the mounting base 2. After connecting the mounting base 2 and the hanger 1, the fixing plate 3 is lifted below the mounting base 2, and its position is adjusted so that the first mounting hole aligns with the second mounting hole. The locking member 5 is then inserted into the first and second mounting holes to connect the fixing plate 3 to the mounting base 2. This utility model uses a step-by-step installation method, eliminating the need to connect the hanger 1, mounting base 2, and fixing plate 3 before connecting them as a whole to the mounting base, reducing the workload during installation. Furthermore, the mounting base 2 engages with the hanger 1, and the fixing plate 3 is connected to the mounting base 2 via the locking member 5, simplifying the installation process and requiring less expertise from the installer. Moreover, the mounting base 2 is small in size and diameter, so even if the rotation method is used to reduce the clamping resistance during installation, it is not easy for the hanger 1 or the mounting base 2 to be damaged due to excessive lever arm.

[0067] It should be noted that both the fan structure and the lighting structure of the fan light are connected to the fixed plate.

[0068] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An easy-to-install locking structure, characterized in that, include: A hanger for connection to a fixed base, the hanger having a fixing part that extends and retracts radially; The mounting base has a clearance hole adapted to the hanger, the hanger is inserted into the clearance hole, the fixing part is engaged with the mounting base, and the mounting base also has a first mounting hole; The fixed plate has a second mounting hole adapted to the first mounting hole; and A locking element is inserted into the first mounting hole and the second mounting hole to connect the mounting base and the fixing plate.

2. The easy-to-install locking structure as described in claim 1, characterized in that, The hanger includes: A guide bracket is used to connect with a fixed base, and a receiving groove is provided on the outer peripheral surface of the guide bracket; A hook-on block is slidably inserted into the receiving groove along the radial direction of the hook-on base, and the hook-on block is used to engage with the mounting base; and A first elastic element is connected to the hook block and the mounting base respectively. The first elastic element is configured with a preload force to keep the hook block and the mounting base in a snap-fit ​​state.

3. The easy-to-install locking structure as described in claim 1, characterized in that, The mounting base includes: The mounting plate has the aforementioned clearance hole; and A guide cylinder is connected to the mounting plate. The guide cylinder is coaxially arranged with the clearance hole, and the inner diameter of the guide cylinder is not less than the diameter of the clearance hole.

4. The easy-to-install locking structure as described in claim 3, characterized in that, The guide cylinder has a limiting hole adapted to the fixing part along its own radial direction, and the limiting hole is connected to the clearance hole, and the fixing part is inserted into the limiting hole.

5. The easy-to-install locking structure as described in claim 4, characterized in that, The mounting base also includes a limiting module connected to the guide cylinder. The limiting module includes two limiting pieces distributed circumferentially along the guide cylinder. The limiting hole is located between the two limiting pieces. The limiting pieces are used to limit the fixing part circumferentially.

6. The easy-to-install locking structure as described in claim 1, characterized in that, The easy-to-install locking structure also includes a pre-attached component connected to the mounting base. The fixing plate has a mounting hole adapted to the pre-attached component, and the pre-attached component is inserted into the mounting hole.

7. The easy-to-install locking structure as described in claim 6, characterized in that, The pre-attached component includes a fixing part, a connecting part, and a snap-fit ​​part connected in sequence. The fixing part is connected to the mounting base, and the snap-fit ​​part has a curved hook that is inserted into the hanging hole and engages with the fixing plate.

8. The easy-to-install locking structure as described in claim 7, characterized in that, The mounting base is provided with a buckle, and the fixing part is engaged with the buckle. The buckle and the fixing part are also provided with corresponding fixing holes, and fasteners are inserted into the fixing holes.

9. The easy-to-install locking structure as described in claim 6, characterized in that, The fixing plate has a receiving groove for accommodating the mounting base, the mounting base is disposed in the receiving groove, the hooking hole communicates radially with the receiving groove along the fixing plate, the outer peripheral surface of the mounting base has a fixing groove, and the pre-hanging component includes: A pre-mounted block is slidably inserted into the fixing groove along the radial direction of the mounting base, and the pre-mounted block is inserted into the mounting hole; and The second elastic element is connected to the pre-hanging block and the mounting base respectively. The second elastic element is configured with a pre-tightening force to keep the pre-hanging block in an inserted state with the hanging hole.

10. A fan light, characterized in that, It has a locking structure that is easy to install, as described in any one of claims 1-9.

Images