Sealing butterfly plate, butterfly valve and mounting method

Abstract

The invention discloses a sealing butterfly plate, a butterfly valve and a mounting method, solves the problems of high cost and poor sealing performance of a butterfly plate sealing structure in the prior art, and has the beneficial effect of effectively ensuring the sealing performance of the butterfly plate. A first concave part and a second concave part are annularly arranged outside the butterfly plate body, the first concave part and the second concave part are arranged on the two sides of the open hole, the first sealing piece is embedded into the first concave part and protrudes out of the first concave part, the second sealing piece is embedded into the second concave part and protrudes out of the second concave part, and the valve rod penetrates through the open hole and then makes contact with the first sealing piece and the second sealing piece. The first concave part and the second concave part have the same structure, the end sides of the first concave part and the second concave part are respectively communicated with the open hole, and the width of one side, far away from the open hole, of the first concave part is greater than that of one side, close to the open hole, of the first concave part.

Description

Technical Field

[0001] The present invention relates to the field of butterfly valves, and in particular to a sealing butterfly plate, a butterfly valve and an installation method. Background Art

[0002] The statements in this part only provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] A butterfly valve includes a hollow valve body. A butterfly plate is arranged at the valve body, and a valve stem connects the butterfly plate and the valve body. The butterfly plate rotates around the central axis of the valve stem to open and close the valve. In the prior art, the butterfly plate is usually provided with a sealing structure. In some solutions, the valve seat is made of rubber material, and the valve seat is in full contact with the butterfly plate to ensure the sealing effect. This sealing method relies on the valve seat structure to ensure the sealing performance. The valve seat is provided with a sealing member, which makes the valve seat structure complex and not easy to process. Moreover, since the sealing ring is not arranged on the circumferential side of the butterfly plate, there is still a problem of easy water leakage. In other solutions, a sealing rubber layer is wrapped outside the butterfly plate, but it is not clear how to wrap it. Basically, it is also vulcanized into an integral structure with the butterfly plate. If it is not vulcanized but simply wrapped, the sealing structure will definitely have instability problems, resulting in easy water leakage of the butterfly valve. However, usually, the sealing structure is integrally vulcanized with the butterfly plate. The vulcanization process has high costs and is greatly affected by casting and processing, resulting in poor sealing performance of the product.

[0004] In addition, the vulcanized rubber layer is not easy to remove and replace. During the removal process, degumming is required. Therefore, in many occasions, the butterfly plate is directly replaced, resulting in high costs. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a sealing butterfly plate that does not require vulcanization, ensures that the sealing member is stably arranged on the outer circumferential direction of the butterfly plate, and effectively ensures the sealing performance of the butterfly valve.

[0006] To achieve the above purpose, the present invention is realized through the following technical solutions:

[0007] In a first aspect, the present invention provides a sealing butterfly plate, including a butterfly plate body. The butterfly plate body is provided with an opening. The outer circumferential direction of the butterfly plate body is provided with a first concave portion and a second concave portion. The first concave portion and the second concave portion are located on both sides of the opening. A first sealing member is embedded in the first concave portion and protrudes from the first concave portion. A second sealing member is embedded in the second concave portion and protrudes from the second concave portion. The valve stem passes through the opening and contacts the first sealing member and the second sealing member. The structures of the first concave portion and the second concave portion are the same. The end sides of the first concave portion and the second concave portion are respectively communicated with the opening. The thickness of the butterfly plate body on both sides of the opening is smaller than the thickness of the butterfly plate body at the first concave portion and the second concave portion.

[0008] The sealed butterfly plate as described above includes a butterfly plate body. On both sides of the opening, a first recess and a second recess are respectively arranged. A first seal is embedded in the first recess, and a second seal is embedded in the second recess. The butterfly plate body ensures the sealing performance when contacting the valve body through the first seal and the second seal. To fix the seals, the thickness of the opening side of the butterfly plate body is variable to fix the sides of the first seal or the second seal, facilitating the installation of the corresponding seals and ensuring the structural stability of each seal during the operation of the butterfly plate body.

[0009] For a sealed butterfly plate as described above, to ensure the sealing performance of the sealed butterfly plate, ensure that the first seal and the second seal are exposed outside the first recess and the second recess, and ensure the stable setting of each seal, the butterfly plate body bends to form bending sections on both sides of the first recess and the second recess respectively. The bending sections on both sides of the first recess are arranged at an interval, and the bending sections on both sides of the second recess are arranged at an interval, so that the first seal and the second seal can protrude from the first recess and the second recess to contact the valve body. The bending sections protrude outwards and the longitudinal section of the bending section is arc-shaped. The first seal is placed in the bending sections on both sides of the first recess, and the second seal is placed in the bending sections on both sides of the second recess;

[0010] The butterfly plate body is formed by stamping, so that the first seal and the second seal can be accurately embedded in the first recess and the second recess.

[0011] For a sealed butterfly plate as described above, the first seal includes a first straight section and a second straight section. An arc section is connected between the first straight section and the second straight section. The first straight section and the second straight section are close to the opening. The angle of the arc section is 90° - 135°, ensuring sufficient contact between the first seal, the second seal and the valve body;

[0012] The thickness of the first seal is adapted to the width of the first recess. The first seal is limited by the bending sections on both sides of the first recess to ensure the stability of the setting of the first seal.

[0013] For a sealed butterfly plate as described above, considering the rationality of the structural arrangement, the opening is a square hole. The first recess communicates with one corner of the square hole, and the second recess communicates with the other corner of the square hole.

[0014] For a sealed butterfly plate as described above, a number of third recesses are arranged on the inner circumferential surfaces of the first seal and the second seal, preventing the seals from falling off and tearing during installation and use.

[0015] A sealing butterfly plate as described above, convex portions are provided on the sides of the first sealing member and the second sealing member in contact with the butterfly plate body to enhance the sealing performance;

[0016] Further, the convex portions are a plurality of stripe water line structures, making the sealing performance of the product more stable.

[0017] A sealing butterfly plate as described above, the first sealing member and the second sealing member are both rubber rings, and there is liquid in the rubber rings to ensure the sealing performance.

[0018] In a second aspect, the present invention further provides a butterfly valve, including a valve body, a valve stem, and the sealing butterfly plate as described above. The valve stem is in clearance fit with the opening of the butterfly plate body and drives the butterfly plate body to rotate synchronously. A positioning bushing is provided at the contact positions of the valve stem with the first sealing member and the second sealing member. The setting of the positioning bushing is beneficial to restricting the up and down movement of the butterfly plate body.

[0019] A butterfly valve as described above, the valve body is made of rolled steel plate, and the butterfly plate body is formed by stamping, ensuring the strength of the valve body and being beneficial to reducing the weight of the valve body.

[0020] In a third aspect, the present invention further provides an installation method for a sealing butterfly plate, including the following contents:

[0021] During the manufacturing process of the butterfly plate body, an opening is provided, and a first concave portion and a second concave portion are respectively provided on both sides of the opening;

[0022] The first sealing member is embedded into the first concave portion, and the second sealing member is embedded into the second concave portion;

[0023] The butterfly plate body is placed in the hollow of the valve body, and the valve stem passes through the opening of the butterfly plate body and contacts the first sealing member and the second sealing member respectively;

[0024] Alternatively, the first sealing member and the second sealing member are first placed in the raw material, and then the butterfly plate body is formed by stamping.

[0025] The beneficial effects of the present invention are as follows:

[0026] 1) In the present invention, a first concave portion and a second concave portion are respectively provided on both sides of the opening of the butterfly plate body. The sealing members are embedded into the corresponding concave portions. The butterfly plate body ensures the sealing performance when contacting the valve body through the first sealing member and the second sealing member. The settings of the first concave portion and the second concave portion enable the corresponding sealing members to be embedded on the periphery of the butterfly plate body, facilitating the installation or replacement of the corresponding sealing members. The replacement is simple, fast, and the cost is controllable. It also ensures the structural stability of each sealing member during the working process of the butterfly plate body. In this way, the sealing structure of the butterfly plate does not require vulcanization, reducing the cost, and is not affected by casting, etc., ensuring the sealing performance of the butterfly plate body.

[0027] 2) In the present invention, the structures of the first concave portion and the second concave portion are reasonably arranged. The butterfly plate body is bent on both sides of the first concave portion and the second concave portion to form bending segments. The distance between the bending segments on both sides of the first concave portion is set so that the first seal is exposed, ensuring the stability of the seal when the corresponding seal is embedded in the first concave portion and the second concave portion, and ensuring the sealing performance of the butterfly plate body.

[0028] 3) The structure of the butterfly plate body in the present invention is reasonably arranged. The first concave portion and the second concave portion are respectively communicated with one of the corners of the opening, so that the connecting rod can contact the end sides of the first seal and the second seal. In this way, when a positioning bushing is provided on the valve stem to contact the first seal and the second seal, it is beneficial to limit the up-and-down movement of the butterfly plate body.

[0029] 4) In the present invention, a number of third concave portions are provided on the inner circumferential surfaces of the first seal and the second seal to prevent the seals from falling off and tearing during installation and use; convex portions are provided on the sides of the first seal and the second seal that contact the butterfly plate body to enhance the sealing performance.

[0030] 5) In the present invention, the structures of the seals are reasonably arranged. The seal includes a first straight segment, a second straight segment and an arc segment. The first straight segment and the second straight segment are inserted into the corresponding bending segments of the first concave portion or the second concave portion, ensuring that the first seal and the second seal are stably inserted into the first concave portion or the second concave portion, and ensuring the set area of the arc segment.

[0031] 6) The butterfly valve provided in the present invention ensures the strength of the valve body, is beneficial to reducing the weight of the valve body. The butterfly plate body is manufactured by stamping, so it has high precision and good symmetry, and has low torque during opening and closing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0033] Figure 1 is a schematic cross-sectional view of a sealed butterfly plate according to one or more embodiments of the present invention.

[0034] Figure 2 is a schematic view of the first seal or the second seal in a sealed butterfly plate according to one or more embodiments of the present invention.

[0035] Figure 3 is an enlarged schematic cross-sectional view of a sealed butterfly plate installed at the valve body according to one or more embodiments of the present invention.

[0036] Figure 4 is a schematic view of a butterfly valve according to one or more embodiments of the present invention.

[0037] Figure 5 This is a cross-sectional view of the inside of a butterfly valve according to one or more embodiments of the present invention.

[0038] In the figure: The distances or dimensions between each part are exaggerated for showing the positions of each part, and the schematic diagram is only for illustration.

[0039] Wherein: 1. Butterfly plate body, 2. Opening, 3. First recess, 4. Second recess, 5. First seal, 6. Second seal, 7. Middle plate, 8. Bending section, 9. First straight section, 10. Second straight section, 11. Arc section, 12. Third recess, 13. Strip water line structure, 14. Valve body, 15. Valve stem. Detailed implementation manners

[0040] It should be noted that the following detailed description is exemplary and is intended to provide further illustration of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0041] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the present invention clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof;

[0042] As introduced in the background art, in the prior art, the sealing mechanism of the butterfly plate body mainly relies on the sealing rubber ring vulcanized integrally therewith, and such a structure has problems of high cost and poor sealing performance. To solve the above technical problems, the present invention proposes a sealed butterfly plate.

[0043] Embodiment 1

[0044] In a typical embodiment of the present invention, referring to Figure 1 , Figure 3As shown in the figure, a sealing butterfly plate includes a butterfly plate body 1. The butterfly plate body 1 is of a circular structure. The butterfly plate body 1 is provided with an opening 2, and the opening 2 is arranged along the radial direction of the butterfly plate body 1. The butterfly plate body 1 is provided with an arc-shaped protrusion on the side of the opening 2 to ensure the structural strength of the butterfly plate body 1. The outer circumference of the butterfly plate body 1 is provided with a first recess 3 and a second recess 4. The first recess 3 and the second recess 4 are located on both sides of the opening 2. A first seal 5 is embedded in the first recess 5 and protrudes from the first recess. A second seal 6 is embedded in the second recess 4 and protrudes from the second recess. The valve stem 15 passes through the opening and contacts the first seal 5 and the second seal 6. The structures of the first recess 3 and the second recess 4 are the same, and the first recess 3 and the second recess 4 are symmetrically arranged about the central axis of the opening. The end sides of the first recess 3 and the second recess 4 are respectively communicated with the opening 2.

[0045] Specifically, the butterfly plate body 1 includes a middle plate 7. The opening 2 is arranged at the center of the middle plate 7. The circumferential side of the middle plate 7 forms the first recess 3 and the second recess 4 through bending sections 8. The bending sections on both sides of the first recess are arranged oppositely. The bending section 8 protrudes outward relative to the end face of the middle plate. The butterfly plate body 1 is provided with a protrusion on the circumference of the opening to ensure the structural strength at the opening.

[0046] To ensure the sealing performance of the sealing butterfly plate, ensure the areas of the first seal 5 and the second seal 6 exposed outside the first recess 3 and the second recess 4, and ensure the stable setting of each seal. The butterfly plate body is bent on both sides of the first recess and the second recess to form bending sections 8 respectively. The bending sections 8 on both sides of the first recess are arranged at an interval. The bending sections on both sides of the second recess are arranged at an interval, so that the first seal 5 and the second seal 6 can protrude from the first recess 3 and the second recess 4 to contact the valve body 14. The longitudinal section of the bending section 8 is arc-shaped. The bending sections 8 on both sides of the first recess are arranged oppositely to accommodate the first seal 5, so that the thickness of the butterfly plate body at the first recess 3 and the second recess 4 is greater than the thickness of the butterfly plate body on both sides of the opening 2. The first seal 5 is placed in the bending sections on both sides of the first recess, and the two side faces of the first seal are limited by the bending sections on both sides of the first recess. The second seal 6 is placed in the bending sections on both sides of the second recess, and the two side faces of the second seal are limited by the bending sections on both sides of the second recess, so that the first seal and the second seal are both exposed outside the butterfly plate body 1.

[0047] Specifically, the butterfly plate body 1 is formed by stamping, so that the first seal 5 and the second seal 6 are accurately embedded in the first recess 3 and the second recess 4. During the stamping process of the butterfly plate body 1, the first seal and the second seal are exposed from the annular surface of the butterfly plate body, so that the first recess 3 and the second recess 4 both form open grooves, while ensuring the stability and sealing of the butterfly plate body 1 during operation, preventing the seals from detaching from the first recess or the second recess. When the seals need to be replaced, the first seal and the second seal are pulled out of the first recess or the second recess, and replaced with new first seals or second seals.

[0048] In some examples, the butterfly plate body 1 is manufactured by stamping, which has high precision, good symmetry, and low torque during opening and closing operations. In other examples, after the butterfly plate body is manufactured, the first seal is embedded in the first recess and the second seal is embedded in the second recess.

[0049] Taking into account the rationality of the structural arrangement, the opening 2 is a square hole, the four corners of the square hole are connected by arc transitions, the gap 7 on the side of the first recess 3 is connected to one of the corners of the square hole, and the gap 7 on the side of the second recess 4 is connected to the other corner of the square hole.

[0050] refer to Figure 2 As shown, the first seal 5 has the same structure as the second seal 6. The first seal 5 includes a first straight segment 9 and a second straight segment 10. An arc segment 11 is connected between the first straight segment 9 and the second straight segment 10. The first straight segment 9 and the second straight segment 10 are arranged close to the opening 2. The lengths of the first straight segment 9 and the second straight segment 10 are the same. The angle of the arc segment 11 is 90°-135°, which ensures the angle of the arc segments of the first seal 5 and the second seal 6. The first straight segment 9 and the second straight segment 10 are respectively connected to the arc segment 11 through an arc angle transition. During the operation of the butterfly plate body 1, the outer annular surface of the first seal 5 and the second seal 6 exposed to the butterfly plate body 1 is mainly in contact with the valve body 14 to ensure the sealing performance of the butterfly plate body 1.

[0051] It needs to be explained that, because of the setting of the bending section, the stable setting of the first seal 5 and the second seal 6 is guaranteed, and the first seal or the second seal can protrude from the peripheral side of the butterfly plate body 1, so that a circle of the butterfly plate body is provided with seals to ensure sufficient contact with the valve body. Through this structure, the sealing performance of the butterfly plate body can be guaranteed.

[0052] Specifically, both the first seal 5 and the second seal 6 are rubber rings. The widths of the first seal and the second seal are adapted to the heights of the first recess or the second recess. There is liquid inside the rubber ring to ensure the sealing performance. After the rubber ring is embedded in the first recess 3 or the second recess 4, the outer circumferential surface of the rubber ring protrudes from the first recess and the second recess to make full contact with the valve body.

[0053] It should be noted that multiple third recesses 12 are provided on the inner circumferential surfaces of the first seal 5 and the second seal 6. The third recesses 12 are arranged along the inner side surfaces of the first seal 5 and the second seal 6 (the side facing the central axis of the butterfly plate body), and a spacing distance is set between adjacent two third recesses 12 to prevent the seals from falling off and tearing during installation and use.

[0054] It is easy to understand that convex portions are provided on the sides of the first seal 5 and the second seal 6 that contact the butterfly plate body 1 to enhance the sealing performance; the convex portions are multiple stripe water line structures 13, which are provided on the surfaces where the first straight section, the second straight section, and the arc section of the first seal or the second seal contact the butterfly plate body. Multiple stripe water line structures are provided on the first straight section and the second straight section, specifically in a straight line form. The distance between adjacent two stripe water lines is set at the straight section. The multiple stripe water line structures 13 provided on the arc section are specifically in an arc form, which is consistent with the form of the arc section. The straight-line form stripe water line structure extends to the transition section between the first straight section, the second straight section, and the arc section. The stripe water line structure makes the sealing performance of the product more stable.

[0055] Of course, in other examples, the convex portion can also be in other structural forms.

[0056] The sealed butterfly plate provided in this embodiment includes a butterfly plate body 1. The first recess 3 and the second recess 4 are respectively provided on both sides of the opening of the butterfly plate body 1. The first seal 5 is embedded in the first recess 3, and the second seal 6 is embedded in the second recess 4. The butterfly plate body 1 ensures the sealing performance when contacting the valve body through the first seal 5 and the second seal 6. The first recess 3 and the second recess 4 are stably fixed by the first seal or the second seal at both sides through the bending sections, which facilitates the installation of the corresponding seals and also ensures the structural stability of each seal during the operation of the butterfly plate body.

[0057] Embodiment 2

[0058] This embodiment provides a butterfly valve. Refer to Figure 4 and Figure 5As shown in the figure, it includes a valve body 14, a valve stem 15, and a sealing butterfly plate 1 described in the first embodiment. The valve stem 15 is in clearance fit with the opening 2 of the butterfly plate body 1 and drives the butterfly plate body 1 to rotate synchronously. Positioning bushings are provided at the contact points of the valve stem 15 with the first seal 5 and the second seal 6, that is, positioning bushings are provided on both sides of the valve stem. The setting of the positioning bushings is beneficial to restricting the up-and-down movement of the butterfly plate body 1.

[0059] Among them, the valve body 14 is made of rolled steel plate to ensure the strength of the valve body 14 and is beneficial to reducing the weight of the valve body 14;

[0060] For the butterfly valve provided in this embodiment, the stripe water line structure of the first seal 5 and the second seal 6 can enhance the sealing performance when the valve stem 15 twists. The sealing in the flow pipeline is sealed by the first seal 5 and the second seal 6 embedded on both sides of the butterfly plate body 1, avoiding the risk of leakage, the sealing is more stable, convenient for disassembly and replacement, and at the same time, it can save costs and is more environmentally friendly for recycling.

[0061] Embodiment Three

[0062] This embodiment discloses an installation method of a sealing butterfly plate, including the following contents:

[0063] During the manufacturing process of the butterfly plate body 1, an opening 2 is provided, and a first recess 3 and a second recess 4 are respectively provided on both sides of the opening 2. Both the first recess and the second recess are open grooves;

[0064] The first seal 5 and the second seal 6 are restricted by the bending sections on the sides of the first recess and the second recess. The first seal 5 is embedded in the first recess 3, and the second seal 6 is embedded in the second recess 4;

[0065] The butterfly plate body 1 is placed in the hollow part of the valve body 14. The valve stem 15 passes through the opening 2 of the butterfly plate body 1 and contacts the first seal 5 and the second seal 6 respectively. The positioning bushings provided on the valve stem 15 are in contact with the end sides of the first seal and the second seal.

[0066] In some examples, the butterfly plate body is a stamping part. First, the first seal 5 and the second seal 6 are placed in the raw material, and then the butterfly plate body is formed by stamping to ensure the installation positions of the first seal and the second seal.

[0067] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sealed butterfly plate, characterized in that, It includes a butterfly plate body. The butterfly plate body is provided with an opening. There are a first concave portion and a second concave portion circumferentially arranged on the outer ring of the butterfly plate body. The first concave portion and the second concave portion are located on both sides of the opening. A first seal is embedded in the first concave portion and protrudes from the first concave portion. A second seal is embedded in the second concave portion and protrudes from the second concave portion. The valve stem passes through the opening and contacts the first seal and the second seal. The structures of the first concave portion and the second concave portion are the same. The end sides of the first concave portion and the second concave portion are respectively communicated with the opening. The thickness of the butterfly plate body on both sides of the opening is less than the thickness of the butterfly plate body at the first concave portion and the second concave portion.

2. The sealing butterfly plate according to claim 1, characterized in that, The butterfly plate body is bent to form bent sections respectively on both sides of the first concave portion and the second concave portion. The bent sections on both sides of the first concave portion are arranged at an interval. The bent sections on both sides of the second concave portion are arranged at an interval. The bent sections protrude outwards and the longitudinal section of the bent section is arc-shaped. The first seal is placed in the bent sections on both sides of the first concave portion. The second seal is placed in the bent sections on both sides of the second concave portion. The butterfly plate body is formed by stamping.

3. A sealed butterfly plate according to claim 1 or 2, characterized in that, The opening is a square hole. The first concave portion is communicated with one corner of the square hole. The second concave portion is communicated with the other corner of the square hole.

4. A sealed butterfly plate according to claim 2, characterized in that, The first seal includes a first straight section and a second straight section. There is an arc section connected between the first straight section and the second straight section. The first straight section and the second straight section are arranged close to the opening. The angle of the arc section is 90°-135°. The thickness of the first seal is adapted to the width of the first concave portion.

5. A sealed butterfly plate according to claim 1, characterized in that, A number of third concave portions are arranged on the inner circumferential surface of the first seal and the second seal.

6. A sealed butterfly plate according to claim 1, characterized in that Convex portions are arranged on the side surfaces of the first seal and the second seal in contact with the butterfly plate body to enhance the sealing performance. Furthermore, the convex portions are a number of stripe water line structures.

7. A sealed butterfly plate according to claim 1, characterized in that, Both the first seal and the second seal are rubber rings.

8. A butterfly valve, characterized in that, It includes a valve body, a valve stem and a sealed butterfly plate according to any one of claims 1-7. The valve stem is in clearance fit with the opening of the butterfly plate body and drives the butterfly plate body to rotate synchronously. A positioning bushing is arranged at the contact position of the valve stem with the first seal and the second seal.

9. A butterfly valve according to claim 8, characterized in that The valve body is made by rolling a steel plate.

10. A method for installing a sealed butterfly plate according to any one of claims 8-9, characterized in that, It includes the following content: During the manufacturing process of the butterfly plate body, an opening is set, and a first concave portion and a second concave portion are respectively arranged on both sides of the opening. The first seal is embedded in the first concave portion, and the second seal is embedded in the second concave portion. The butterfly plate body is placed in the hollow of the valve body. The valve stem passes through the opening of the butterfly plate body and contacts the first seal and the second seal respectively. Or, first place the first seal and the second seal in the raw material, and then form the butterfly plate body by stamping.

Images