Sliding cover structure and aerosol generating device

Abstract

The utility model relates to the technical field of aerosol generating devices, in particular to a sliding cover structure which comprises a sliding cover, a sliding seat assembly and a guide rod, the sliding cover can slide relative to the sliding seat assembly, the sliding cover is provided with at least one first sliding groove extending in the sliding direction, the guide rod is connected to the sliding seat assembly, and the sliding seat assembly is provided with at least one second sliding groove extending in the sliding direction. The guide rod is at least partially contained in the first sliding groove and penetrates through the first sliding groove in the sliding direction of the sliding cover, and therefore the guide rod can support the sliding cover and provide guidance for sliding of the sliding cover. By means of the structure, the sliding cover shakes slightly in the direction towards the sliding base assembly along the sliding cover, and the sliding cover slides smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of aerosol generating devices, in particular to a sliding cover structure and an aerosol generating device. Background Art

[0002] The aerosol generating device is usually provided with a through hole, which is used for inserting the adapted aerosol generating product into the aerosol generating device, so that the aerosol generating device heats the aerosol generating product to generate aerosol. When the aerosol generating device is idle, the through hole is closed by the sliding cover structure of the aerosol generating device to prevent dust and other particulate matter in the air from accumulating in the aerosol generating device through the through hole, thereby affecting the heating efficiency and service life of the aerosol generating device.

[0003] The slide cover structure of the aerosol generating device usually includes a slide cover and a slide seat. The slide seat is provided with a slide groove and a through opening. The slide cover is provided with a slide portion, which is inserted into the slide groove so that the slide cover can move relative to the slide seat, so that the slide cover is closed at the through opening.

[0004] However, in the process of implementing the present utility model, the inventors found that the sliding cover is prone to shake along the direction from the sliding cover to the sliding seat. Utility Model Content

[0005] The utility model provides a sliding cover structure, which has the advantages of smooth sliding and little shaking.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a sliding cover structure, including a sliding seat assembly; a sliding cover, which can slide relative to the sliding seat assembly, and the sliding cover is provided with at least one first sliding groove extending along the sliding direction; a guide rod, which is connected to the sliding seat assembly, and the guide rod is at least partially accommodated in the first sliding groove and passes through the first sliding groove along the sliding direction of the sliding cover, so that the guide rod can support the sliding cover and provide guidance for the sliding of the sliding cover.

[0007] Optionally, the sliding seat assembly includes a seat body, the seat body is provided with a groove for receiving at least a portion of the sliding cover, and the guide rod is arranged adjacent to a side wall of the groove.

[0008] Optionally, the slide assembly defines a second slide groove, and the guide rod extends in the second slide groove and is blocked by the slide assembly.

[0009] Optionally, the sliding cover includes a cover body and a sliding portion extending laterally from the cover body, the first sliding groove is arranged on the sliding portion, and the sliding portion is inserted into the second sliding groove so that the sliding portion can slide along the second sliding groove.

[0010] Optionally, the sliding portion includes a first sliding portion located on one side of the cover body and a second sliding portion located on the other side of the cover body, and the first sliding portion and the second sliding portion are both provided with the first sliding groove.

[0011] Optionally, the longitudinal lengths of the first sliding portion and the second sliding portion are both smaller than the longitudinal length of the cover body.

[0012] Optionally, the sliding seat assembly includes a seat body and a seat sleeve sleeved on the seat body, the guide rod is connected to the seat body, and the seat body and the seat sleeve define the second sliding groove.

[0013] Optionally, the slide seat assembly is further provided with a mounting hole, the mounting hole is connected to the second slide groove, and the mounting hole is used for the guide rod to be inserted into the second slide groove.

[0014] Optionally, the first slide groove has an opening that allows a portion of the guide rod to be received in the first slide groove, and the direction of the opening is perpendicular to the thickness direction of the sliding cover.

[0015] Optionally, the bottom of the sliding cover has a recess away from the sliding seat assembly, so that a gap is maintained between the bottom of the sliding cover and the sliding seat assembly.

[0016] Optionally, the cross section of the guide rod is circular; or, the guide rod is made of metal.

[0017] Optionally, the sliding seat assembly also includes a seat sleeve, which is sleeved on the seat body, and the seat sleeve has a limiting portion extending toward the groove, the limiting portion is arranged opposite to the bottom wall of the groove, the limiting portion is covered on the guide rod, and the limiting portion and the bottom wall of the groove are used to limit the sliding cover along a direction perpendicular to the bottom wall of the groove.

[0018] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an aerosol generating device for heating an aerosol generating product to generate an aerosol, the aerosol generating device having a through opening for accommodating the aerosol generating product in the generating device, the aerosol generating device including the sliding cover structure, and the sliding cover can close the through opening or expose the through opening during the sliding process along the guide rod.

[0019] The beneficial effects of the embodiment of the present application are as follows: the sliding cover structure includes a sliding cover, a sliding seat assembly and a guide rod, the sliding cover is slidable relative to the sliding seat assembly, the sliding cover is provided with at least one first sliding groove extending along the sliding direction, the guide rod is connected to the sliding seat assembly, the guide rod is at least partially accommodated in the first sliding groove and passes through the first sliding groove along the sliding direction of the sliding cover, so that the guide rod can support the sliding cover and provide guidance for the sliding of the sliding cover. Through the above structure, the sliding cover shakes less along the direction of the sliding cover toward the sliding seat assembly, and the sliding cover slides smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0021] Figure 1 This is a view of the sliding cover structure provided by the utility model in a three-dimensional state;

[0022] Figure 2 This is a view of the slide cover structure provided by the utility model in a cutaway state;

[0023] Figure 3 This is an exploded view of the sliding cover structure provided by the utility model in a three-dimensional state;

[0024] Figure 4 This is a view of the slide cover provided by the utility model in a cut-away state;

[0025] Figure 5 This is an exploded view of the slide assembly and the guide rod in a cutaway state provided by the utility model;

[0026] Figure 6 This is an exploded view of the ring and the seat body in a cut-away state provided by the utility model;

[0027] Figure 7 This is another view of the slide cover structure provided by the utility model in a cut-away state.

[0028] Reference numerals:

[0029] 100. Sliding cover structure;

[0030] 10. Sliding cover; 11. Cover body; 12. Sliding portion; 10a. First sliding groove; 10b. Concave; 12a. Opening; 121. First sliding portion; 122. Second sliding portion;

[0031] 20, sliding seat assembly; 21, seat body; 22, seat cover; 20a, second sliding groove; 20b, mounting hole; 21a, groove; 221, collar; 222, limiting portion; 223, convex portion;

[0032] 30, guide rod; 100c, through port. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0035] See also Figure 1-Figure 2 The sliding cover structure 100 includes a sliding cover 10, a sliding seat assembly 20 and a guide rod 30. The guide rod 30 is disposed on the sliding seat assembly 20, and the sliding cover 10 is slidably mounted on the guide rod 30. By applying an external force, the sliding cover 10 can slide along the guide rod 30, so that the sliding cover 10 slides relative to the sliding seat assembly 20, and then the sliding cover 10 can reciprocate between a preset closed position and a preset open position.

[0036] For the above slide cover 10, see Figure 3 and Figure 4 The sliding cover 10 is provided with at least one first sliding groove 10a extending along the sliding direction, and the guide rod 30 is at least partially accommodated in the first sliding groove 10a and passes through the first sliding groove 10a along the sliding direction of the sliding cover 10, so that the guide rod 30 can support the sliding cover 10 and provide guidance for the sliding of the sliding cover 10.

[0037] For the first slide groove 10a, the first slide groove 10a has an opening 12a that allows part of the guide rod 30 to be accommodated in the first slide groove 10a. The direction of the opening 12a is perpendicular to the thickness direction of the slide cover 10, so that the opposite side walls of the first slide groove 10a are respectively in contact with the guide rod 30, thereby realizing the limit of the slide cover 10 by the slide seat assembly 20 and the support of the slide cover 10 by the guide rod 30. It can be understood that the opening 12a allows part of the guide rod 30 to extend from the opening 12a along the first slide groove 10a, reducing the contact area between the side wall of the first slide groove 10a and the guide rod 30, thereby increasing the smoothness of the slide of the slide cover 10. Among them, the thickness direction of the slide cover 10 is the same as the direction of the slide cover 10 toward the slide seat assembly 20.

[0038] In some embodiments, the bottom of the slide cover 10 has a recess 10b away from the slide assembly 20, so that a gap is maintained between the bottom of the slide cover 10 and the slide assembly 20. When the slide cover 10 slides relative to the slide assembly 20, the contact area between the slide cover 10 and the slide assembly 20 is reduced, thereby increasing the smoothness of the sliding of the slide cover 10.

[0039] For the above slide cover 10, see Figure 3 Combination Figure 4 The sliding cover 10 includes a cover body 11 and a sliding portion 12 . The cover body 11 is roughly waist-shaped. The sliding portion 12 is extended laterally from the cover body 11 . The first sliding groove 10 a is disposed on the sliding portion 12 .

[0040] For the above-mentioned slide 12, please refer to Figure 4 The sliding part 12 includes a first sliding part 121 and a second sliding part 122. The first sliding part 121 and the second sliding part 122 are respectively located on opposite sides of the cover body 11, and the longitudinal length of the first sliding part 121 and the longitudinal length of the second sliding part 122 are both smaller than the longitudinal length of the cover body 11. The first sliding part 121 and the second sliding part 122 are both provided with a first sliding groove 10a. The number of the guide rods 30 is two, and the two guide rods 30 are arranged oppositely and in parallel, and the two guide rods 30 correspond to the first sliding groove 10a of the first sliding part 121 and the first sliding groove 10a of the second sliding part 122 respectively. Among them, the longitudinal length of the first sliding part 121, the longitudinal length of the second sliding part 122 and the longitudinal length of the cover body 11 are the same as the sliding direction of the sliding cover 10. Optionally, the first sliding part 121 and the second sliding part 122 are respectively inclined toward the slide seat assembly 20, so that the cover body 11, the first sliding part 121 and the second sliding part 122 are enclosed together to form a recess 10b. Optionally, along the direction from the sliding seat assembly 20 to the sliding cover 10 , the surface of the cover body 11 is directly recessed 10 b.

[0041] For the above-mentioned slide assembly 20, please refer to Figure 2The slide assembly 20 defines a second slide groove 20a, the guide rod 30 extends in the second slide groove 20a and is blocked by the slide assembly 20, and the slide portion 12 is inserted into the second slide groove 20a, so that the slide portion 12 can slide along the second slide groove 20a.

[0042] For the above-mentioned slide assembly 20, please refer to Figure 2 and Figure 3 The slide assembly 20 includes a seat body 21 and a seat cover 22. The seat cover 22 is sleeved on the seat body 21, and the guide rod 30 is connected to the seat body 21. The seat body 21 and the seat cover 22 define a second slide groove 20a.

[0043] For the seat 21, see Figure 1 Combination Figure 5 The seat body 21 is provided with a groove 21a and a through opening 100c. The shape of the groove 21a is roughly waist-shaped. The through opening 100c runs through the bottom wall of the groove 21a. The groove 21a can receive at least a part of the sliding cover 10, that is, at least a part of the sliding cover 10 extends into the groove 21a.

[0044] For the above seat cover 22, see Figure 5 Combination Figure 6 The seat cover 22 includes a collar 221, which is sleeved on the seat body 21. The collar 221 extends toward the groove 21a and has a limiting portion 222. The limiting portion 222 is arranged opposite to the bottom wall of the groove 21a, so that the limiting portion 222 and the bottom wall of the groove 21a are enclosed together to form a second slide groove 20a. It is worth noting that there are two limiting portions 222, which are arranged opposite to each other, and the two limiting portions 222 are respectively enclosed together with the bottom wall of the groove 21a to form two second slide grooves 20a. The guide rod 30 is connected to the seat body 21, and the guide rod 30 extends into the second slide groove 20a and is blocked by the slide seat assembly 20, so as to avoid the guide rod 30 being exposed and affecting the aesthetics of the sliding cover structure 100. The sliding cover 10 is arranged in the groove 21a, and a part of the cover body 11 of the sliding cover 10 extends into the groove 21a, and another part of the cover body 11 of the sliding cover 10 extends out from the notch of the groove 21a and is exposed, and the sliding portion 12 of the sliding cover 10 is inserted into the second slide groove 20a from the notch of the second slide groove 20a, and the sliding portion can slide in the second slide groove 20a along the guide rod 30, so that the cover body 11 of the sliding cover 10 can reciprocate between a preset closed position and a preset open position. When the cover body 11 is located at the preset closed position, the cover body 11 covers the through opening 100c and closes the through opening 100c. When the cover body 11 is located at the preset open position, the cover body 11 deviates from the through opening 100c and the through opening 100c is exposed.

[0045] Furthermore, when the sliding portion 12 of the sliding cover 10 is inserted into the second sliding groove 20a, the limiting portion 222 and the bottom wall of the groove 21a limit the sliding portion 12 along a direction perpendicular to the bottom wall of the groove 21a, thereby limiting the sliding cover 10 along a direction perpendicular to the bottom wall of the groove 21a, and reducing the risk of the sliding cover 10 detaching from the second sliding groove 20a along a direction perpendicular to the bottom wall of the groove 21a.

[0046] In some embodiments, see Figure 3 Combination Figure 6 , the outer surface of the seat body 21 is provided with a convex portion 223, and the convex portion 223 is elastic. When the collar 221 is sleeved on the seat body 21, the convex portion 223 abuts against the inner wall surface of the collar 221, and the convex portion 223 produces elastic deformation, so that the collar 221 and the seat body 21 form an interference fit, reducing the risk of the seat sleeve 22 being separated from the seat body 21. Optionally, the number of the convex portions 223 is several, and the several convex portions 223 are arranged at intervals along the outer surface of the seat body 21, and the several convex portions 223 abut against the inner wall surface of the collar 221, so that the collar 221 is stably installed on the seat body 21.

[0047] In some embodiments, a guide structure (not shown) is disposed at one end of the seat body 21 close to the sliding cover 10, and the guide structure can guide the collar 221 to be quickly mounted on the seat body 21. Specifically, along the direction of the seat body 21 toward the sliding cover 10, the cross section of the seat body 21 gradually decreases, so that the guide structure of the seat body 21 can guide the collar 221 to be quickly mounted on the seat body 21.

[0048] In some embodiments, the base 21 is provided with a mounting hole 20b, see Figure 5 The mounting hole 20b penetrates the base body 21 along the sliding direction of the sliding cover 10, and the mounting hole 20b is connected to the second slide groove 20a. The mounting hole 20b is used for the guide rod 30 to be inserted into the second slide groove 20a. When assembling the guide rod 30, the guide rod 30 is inserted into the second slide groove 20a from the mounting hole 20b, and then glue is dripped into the mounting hole 20b to close the mounting hole 20b, thereby fixing the guide rod 30 to the base body 21. Of course, fixing the guide rod 30 to the second slide groove 20a is not limited to the method of dripping glue, and there may be other methods, for example: the base body 21 is provided with a screw hole, and the screw hole is connected to the mounting hole 20b. After the guide rod 30 is inserted into the second slide groove 20a from the mounting hole 20b, the bolt is screwed into the screw hole, and the bolt is rotated so that the bolt part extends into the second slide groove 20a and abuts against the end face of the guide rod 30 close to the mounting hole 20b, thereby limiting the guide rod 30. When it is necessary to remove the guide rod 30 from the second slide groove 20a, the bolt is directly rotated in the opposite direction so that the bolt retracts into the screw hole and no longer abuts against the end face of the guide rod 30 close to the mounting hole 20b, and then the guide rod 30 is pushed to slide out of the second slide groove 20a from the mounting hole 20b.

[0049] For the guide rod 30 above, see Figure 5 Combination Figure 7 The guide rod 30 is cylindrical in shape so that the cross section of the guide rod 30 is circular, and the cylindrical guide rod 30 can improve the smoothness of sliding of the sliding cover 10 along the guide rod 30. Of course, the cross section of the first sliding groove 10a can also be circular, so that the guide rod 30 and the first sliding groove 10a are better adapted and the sliding of the sliding cover 10 is smoother.

[0050] In some embodiments, the guide rod 30 is made of metal, such as iron, copper, etc. The metal guide rod 30 is usually machined by a lathe, and the lathe has high machining accuracy, so that the diameter of the guide rod 30 is close to the inner diameter of the first slide groove 10a, and the gap reserved between the guide rod 30 and the inner wall of the first slide groove 10a is reduced, thereby reducing the probability of the guide rod 30 shaking relative to the slide cover 10.

[0051] It is understood that the material of the guide rod 30 is not limited to metal, and may be other materials, such as plastic. In addition, the cross-section of the guide rod 30 and the first chute 10a may not be circular, but may be other shapes, such as square, as long as the gap between the outer wall of the guide rod 30 and the inner wall of the first chute 10a is small enough.

[0052] It should be noted that the structure of the slide assembly 20 is not limited to the above structure, and may also be other structures, for example:

[0053] 1) The slide assembly 20 is in the shape of a flat plate, and the guide rod 30 is connected to the slide assembly 20. The guide rod 30 passes through the first slide groove 10a along the sliding direction of the slide cover 10. The slide cover 10 can slide along the guide rod 30. When the slide cover 10 is located at the preset closed position, the slide cover 10 protrudes from the slide assembly 20, and the slide cover 10 covers the opening 100c of the external device. When the slide cover 10 is located at the preset open position, the slide cover 10 retracts onto the slide assembly 20, and the opening 100c of the external device is opened. Of course, in other embodiments, when the slide cover 10 is at the preset closed position and the preset open position, the slide cover 10 can also be outside the slide assembly 20, as long as the slide cover 10 is located at the preset open position, the opening 100c of the external device is covered, and when the slide cover 10 is located at the preset open position, the opening 100c of the external device is opened.

[0054] 2) The slide assembly 20 only includes a seat body 21, which is provided with a groove 21a and a through-hole 100c. The guide rod 30 is provided adjacent to the side wall of the groove 21a. The slide cover 10 is provided in the groove 21a, and the slide cover 10 can slide in the groove 21a with the guide rod 30, so that the slide cover 10 covers the through-hole 100c, or exposes the through-hole 100c. Of course, the through-hole 100c may not be provided, and a notch may be provided in the side wall of the groove 21a. When the slide cover 10 is located at the preset through-hole 100c position, the slide cover 10 extends from the notch into the groove 21a to cover the through-hole 100c of the external device. When the slide cover 10 is located at the preset open position, the slide cover 10 retracts into the groove 21a, and the through-hole 100c of the external device is opened.

[0055] In the embodiment of the present application, the sliding cover structure 100 includes a sliding cover 10, a sliding seat assembly 20 and a guide rod 30. The sliding cover 10 is slidable relative to the sliding seat assembly 20. The sliding cover 10 is provided with at least one first sliding groove 10a extending in the sliding direction. The guide rod 30 is connected to the sliding seat assembly 20. The guide rod 30 is at least partially accommodated in the first sliding groove 10a and passes through the first sliding groove 10a along the sliding direction of the sliding cover 10, so that the guide rod 30 can support the sliding cover 10 and provide guidance for the sliding of the sliding cover 10. Through the above structure, the sliding cover 10 shakes less and slides smoothly along the direction of the sliding cover 10 toward the sliding seat assembly 20.

[0056] The utility model also provides an embodiment of an aerosol generating device, which can heat an aerosol generating product to generate an aerosol. The aerosol generating device includes the above-mentioned sliding cover structure 100, and the aerosol generating device has a through opening 100c for accommodating the aerosol generating product in the generating device, and the sliding cover 10 of the sliding cover structure 100 can close the through opening 100c or expose the through opening 100c during the sliding process along the guide rod 30.

[0057] The specific structure and function of the sliding cover structure 100 may refer to the above embodiments, which will not be described in detail here.

[0058] It should be noted that the preferred embodiments of the utility model are given in the specification and drawings of the utility model, but the utility model can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional restrictions on the content of the utility model. The purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the utility model.

Claims

1. A sliding cover structure, characterized in that: include: Slide assembly; A sliding cover, which is slidable relative to the sliding seat assembly, and the sliding cover is provided with at least one first sliding groove extending along a sliding direction; A guide rod is connected to the slide seat assembly, wherein the guide rod is at least partially accommodated in the first slide groove and passes through the first slide groove along the sliding direction of the slide cover, so that the guide rod can support the slide cover and provide guidance for the sliding of the slide cover.

2. The sliding cover structure according to claim 1, characterized in that: The sliding seat assembly comprises a seat body, the seat body is provided with a groove for receiving at least a part of the sliding cover, and the guide rod is arranged adjacent to the side wall of the groove.

3. The sliding cover structure according to claim 1, characterized in that: The slide assembly defines a second slide slot, and the guide rod extends in the second slide slot and is blocked by the slide assembly.

4. The sliding cover structure according to claim 3, characterized in that: The sliding cover comprises a cover body and a sliding portion extending laterally from the cover body, the first sliding groove is arranged on the sliding portion, and the sliding portion is inserted into the second sliding groove so that the sliding portion can slide along the second sliding groove.

5. The sliding cover structure according to claim 4, characterized in that: The sliding part includes a first sliding part located at one side of the cover body and a second sliding part located at the other side of the cover body, and the first sliding part and the second sliding part are both provided with the first sliding groove.

6. The sliding cover structure according to claim 5, characterized in that: The longitudinal lengths of the first sliding portion and the second sliding portion are both smaller than the longitudinal length of the cover body.

7. The sliding cover structure according to claim 3, characterized in that: The sliding seat assembly includes a seat body and a seat sleeve sleeved on the seat body, the guide rod is connected to the seat body, and the seat body and the seat sleeve define the second sliding groove.

8. The sliding cover structure according to claim 3, characterized in that: The slide seat assembly is further provided with a mounting hole, the mounting hole being connected to the second slide groove, and the mounting hole is used for the guide rod to be inserted into the second slide groove.

9. The sliding cover structure according to claim 1, characterized in that: The first slide groove has an opening that allows a portion of the guide rod to be received in the first slide groove, and the direction of the opening is perpendicular to the thickness direction of the slide cover.

10. The sliding cover structure according to claim 9, characterized in that: The bottom of the sliding cover has a recess away from the sliding seat assembly, so that a gap is maintained between the bottom of the sliding cover and the sliding seat assembly.

11. The sliding cover structure according to claim 1, characterized in that: The cross section of the guide rod is circular; or, the guide rod is made of metal.

12. The sliding cover structure according to claim 2, characterized in that: The sliding seat assembly also includes a seat sleeve, which is sleeved on the seat body, and the seat sleeve extends toward the groove to have a limiting portion, the limiting portion is arranged opposite to the bottom wall of the groove, the limiting portion covers the guide rod, and the limiting portion and the bottom wall of the groove are used to limit the sliding cover along a direction perpendicular to the bottom wall of the groove.

13. An aerosol generating device for heating an aerosol generating product to generate an aerosol, the aerosol generating device having a port for receiving the aerosol generating product in the generating device, characterized in that: The invention comprises a sliding cover structure as claimed in any one of claims 1 to 12, wherein the sliding cover can close the through opening or expose the through opening when sliding along the guide rod.

Images