Automatic uncovering device

Abstract

The utility model relates to the technical field of detection equipment, in particular to an automatic uncovering device, which comprises a truss module, a first uncovering module, a second uncovering module, a first uncovering module, a second uncovering module and a third uncovering module, and is characterized in that the truss module comprises a truss structure and a first sliding table and a second sliding table which are parallel to each other; a third sliding table perpendicular to the first sliding table and the second sliding table is arranged on the truss structure; the grabbing mechanism comprises a sliding seat arranged on the third sliding table, a vertical sliding table arranged on the sliding seat and an electric clamping jaw arranged on the vertical sliding table, and the electric clamping jaw can execute the grabbing action and the rotating action; the operation table is provided with a rotary table, the rotary table is provided with at least one clamping station used for positioning a sample bottle, and the periphery of the rotary table is provided with a pipetting mechanism used for adding a reagent. According to the scheme, the defects that in the prior art, manual uncovering operation is low in efficiency and errors are prone to occurring are overcome, and rapid, accurate and safe uncovering and liquid adding of the reagent bottle are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to an automatic bottle-opening device. Background Art

[0002] In the field of dairy product detection, it is crucial to ensure the accuracy and efficiency of the detection process. Among them, the reagent preparation stage is one of the key steps in the whole detection process. The traditional operation of opening the reagent bottle cap usually depends on manual operation, that is, after opening the cap of the reagent bottle, the required reagent stock solution is added.

[0003] However, in actual operation, dairy product detection laboratories often undertake a large number of sample detection tasks, with extremely high workload requirements for detection personnel. On the other hand, frequent manual bottle opening not only increases the workload of detection personnel, but also may lead to improper operation due to fatigue or negligence. For example, the cap is not tightened completely, resulting in reagent leakage, or the cap is contaminated, affecting the accuracy of the detection results. These problems not only reduce the overall efficiency of the detection work, but also pose potential risks to the reliability of the detection results. In addition, for some special reagents, their properties may be relatively unstable or harmful to the human body, such as strongly corrosive or volatile reagents, which further increases the risk and difficulty of manual bottle opening. Content of the Utility Model

[0004] The utility model provides an automatic bottle-opening device to solve the defects of low efficiency and easy occurrence of errors in the existing manual bottle-opening operation, and realizes the rapid, accurate and safe bottle opening and liquid addition of reagent bottles.

[0005] The utility model provides an automatic bottle-opening device, including: a truss module, including a truss structure and a first slide table and a second slide table parallel to each other, both ends of the truss structure are respectively arranged on the first slide table and the second slide table, and a third slide table perpendicular to the first slide table and the second slide table is arranged on the truss structure; a grasping mechanism, including a sliding seat arranged on the third slide table, a vertical slide table arranged on the sliding seat, and an electric gripper arranged on the vertical slide table, and the electric gripper can perform grasping actions and rotation actions; an operation table, on which a turntable is arranged, at least one clamping station for positioning a sample bottle is arranged on the turntable, and a pipetting mechanism for adding reagents is arranged around the turntable.

[0006] According to the automatic bottle-opening device provided by the utility model, the truss module includes a first bracket and a second bracket arranged at intervals, and the first bracket and the second bracket have the same height; the first slide table is arranged on the first bracket, and the second slide table is arranged on the second bracket.

[0007] According to an automatic lid-opening device provided by the present utility model, the operating table is located at an intermediate position between the first bracket and the second bracket, and the heights of the first bracket and the second bracket are higher than that of the operating table.

[0008] According to an automatic lid-opening device provided by the present utility model, the number of clamping stations is multiple, and the distance of each clamping station from the center of the turntable is the same.

[0009] According to an automatic lid-opening device provided by the present utility model, the number of liquid-transferring mechanisms is multiple, and the distance of each liquid-transferring mechanism from the center of the turntable is the same.

[0010] According to an automatic lid-opening device provided by the present utility model, a stock solution bottle for storing reagent stock solution is arranged at an adjacent position of the liquid-transferring mechanism.

[0011] According to an automatic lid-opening device provided by the present utility model, the liquid-transferring mechanism includes a vertical bracket, a vertical driver, and a syringe; the vertical bracket is arranged on the operating table; the vertical driver is arranged on the vertical bracket; the syringe is arranged at the driving end of the vertical driver so as to rise or fall relative to the operating table under the drive of the vertical driver.

[0012] According to an automatic lid-opening device provided by the present utility model, one of the first sliding table and the second sliding table is a driving sliding table, and the other is a driven sliding table.

[0013] According to an automatic lid-opening device provided by the present utility model, a position sensor for detecting the rotation position of the turntable is arranged on the operating table at at least one side of the turntable.

[0014] According to an automatic lid-opening device provided by the present utility model, a temporary storage rack is arranged on the operating table at an adjacent position of the turntable; a plurality of cap accommodating grooves are arranged on the temporary storage rack for storing caps removed from the sample bottles.

[0015] For the automatic lid-opening device provided by the present utility model, the truss module enables the grasping mechanism to move flexibly and freely in all horizontal positions. The electric gripper of the grasping mechanism can grasp the sample bottle or the cap through the grasping action and grasp the sample bottle to the clamping station of the turntable. After the sample bottle is fixed at the clamping station, the electric gripper removes the cap through the rotating action, so as to accurately add the reagent through the liquid-transferring mechanism. Through the automated lid-opening solution, the automation degree of the reagent bottle lid-opening and liquid-adding processes is improved, the error caused by manual operation is reduced, and the efficiency and safety of the detection work are improved. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the attached drawings required for the description of the embodiments or the prior art. Obviously, the attached drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of the automatic lid-opening device provided by the present utility model.

[0018] Figure 2 It is a schematic structural diagram of the operation table of the automatic lid-opening device provided by the present utility model.

[0019] Reference numerals:

[0020] 11, truss structure; 12, first sliding table; 13, second sliding table; 14, third sliding table; 15, first bracket; 16, second bracket; 21, sliding seat; 22, vertical sliding table; 23, electric gripper; 30, operation table; 31, turntable; 40, liquid transfer mechanism; 41, stock solution bottle; 42, vertical bracket; 43, vertical driver; 44, syringe; 51, position sensor; 52, temporary storage rack. Detailed implementation manners

[0021] To make the objectives, technical solutions, and advantages of the present utility model clearer, the following will clearly and completely describe the technical solutions in the present utility model in conjunction with the attached drawings in the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0022] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. It should also be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "set", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] The following combines Figure 1 and Figure 2 to describe the specific implementation manners of the automatic bottle-opening device of the present utility model.

[0024] The present utility model provides an automatic bottle-opening device, which aims to solve the problems of low efficiency and easy occurrence of errors in manual bottle-opening operations in the prior art, and realizes the rapid, accurate and safe bottle-opening and liquid addition of reagent bottles. As Figure 1 shown, the device specifically includes: a truss module, including a truss structure 11 and a first slide 12 and a second slide 13 that are parallel to each other. The two ends of the truss structure 11 are respectively arranged on the first slide 12 and the second slide 13, and a third slide 14 perpendicular to the first slide 12 and the second slide 13 is arranged on the truss structure 11; a grasping mechanism, including a sliding seat 21 arranged on the third slide 14, a vertical slide 22 arranged on the sliding seat 21, and an electric gripper 23 arranged on the vertical slide 22. The electric gripper 23 can perform grasping actions and rotation actions; an operating table 30, on which a turntable 31 is arranged. At least one clamping station for positioning the specimen bottle is arranged on the turntable 31, and a pipetting mechanism 40 for adding reagents is arranged around the turntable 31.

[0025] The automatic bottle-opening device of the present utility model enables the grasping mechanism to move flexibly and freely in various horizontal positions through the truss module. The electric gripper 23 of the grasping mechanism can grasp the sample bottle or the bottle cap through the grasping action and grasp the sample bottle to the clamping station of the turntable 31. After the sample bottle is fixed at the clamping station, the electric gripper 23 removes the bottle cap through the rotating action, so as to accurately add reagents through the pipetting mechanism 40. Through the automated bottle-opening solution, the automation degree of the reagent bottle opening and liquid adding process is improved, the error caused by manual operation is reduced, and the efficiency and safety of the detection work are improved.

[0026] Specifically, both ends of the truss structure 11 of the truss module are respectively arranged on the first slide table 12 and the second slide table 13, so that the entire truss module can move freely in the horizontal direction along the first slide table 12 and the second slide table 13 (equivalent to the X-axis direction). A third slide table 14 perpendicular to the first slide table 12 and the second slide table 13 is also arranged on the truss structure 11, which enables the grasping mechanism to move in another horizontal direction (equivalent to the Y-axis direction), thus realizing free movement on the horizontal plane.

[0027] The sliding seat 21 of the grasping mechanism can slide along the Y-axis direction on the third slide table 14. The vertical slide table 22 arranged on the sliding seat 21 further enhances the vertical movement ability of the grasping mechanism. The electric gripper 23 is arranged on the vertical slide table 22 and can not only move up and down with the vertical slide table 22, but also perform the grasping action and the rotating action, for grasping the sample bottle or the bottle cap and rotating to remove the bottle cap when needed.

[0028] As Figure 2 shown, a turntable 31 is arranged on the operating table 30, and at least one clamping station for positioning the sample bottle is arranged on the turntable 31. When the sample bottle is placed at the clamping station, it will be fixed. The clamping station may specifically include a positioning groove or a fixture adapted to the shape of the sample bottle, etc. A pipetting mechanism 40 for adding reagents is arranged around the turntable 31. Once the bottle cap is removed, the turntable 31 can rotate by a corresponding angle, so that the pipetting mechanism 40 can accurately add the required reagents into the sample bottle. It can be understood that in order to realize the automatic rotation of the turntable 31, a rotation driver and corresponding transmission structures, such as a servo motor and a transmission shaft, etc., can be arranged between the turntable 31 and the operating table 30.

[0029] According to an automatic opening device provided by the present utility model, the truss module includes a first bracket 15 and a second bracket 16 which are arranged at intervals, and the first bracket 15 and the second bracket 16 have the same height; a first sliding table 12 is arranged on the first bracket 15, and a second sliding table 13 is arranged on the second bracket 16. The first bracket 15 and the second bracket 16 provide necessary support for the truss module, ensuring that the grasping mechanism can move freely in the horizontal direction. Through the horizontal support with appropriate height provided by the first bracket 15 and the second bracket 16, the grasping mechanism can move freely in the horizontal direction. The first bracket 15 and the second bracket 16 are preferably supported on the ground through the leg structure shown in the figure to ensure the stability of the entire system. Of course, in addition to using the leg structure for support, other support methods, such as ceiling-mounted support, can also be adopted to fix the first sliding table 12 and the second sliding table 13 to ensure the stable operation of the entire truss module.

[0030] Preferably, according to an automatic opening device provided by the present utility model, the operating table 30 is located at the middle position between the first bracket 15 and the second one, and the heights of the first bracket 15 and the second bracket 16 are higher than that of the operating table 30. Among them, the heights of the first bracket 15 and the second bracket 16 are higher than that of the operating table 30 to ensure that the grasping mechanism has sufficient vertical space to move up and down, so as to facilitate grasping the sample bottle or the bottle cap from a higher position and placing it on the lower operating table 30, or removing the bottle cap from the operating table 30. The operating table 30 is located at the middle position between the first bracket 15 and the second bracket 16, which is beneficial for the grasping mechanism to move freely above the operating table 30 in the horizontal direction through the truss module, so as to perform the operations of opening the cap and adding liquid.

[0031] According to an automatic opening device provided by the present utility model, the number of clamping stations in the above scheme is preferably multiple, and the distances of each clamping station from the center of the turntable 31 are the same. Through multiple clamping stations, multiple sample bottles can be fixed on the turntable 31 at the same time, thereby improving the processing efficiency and enabling batch operations of opening the caps and adding liquid to multiple sample bottles. The distances of each clamping station from the center of the turntable 31 are the same. This evenly distributed design ensures that the sample bottles at all clamping stations are subjected to the same centrifugal force when the turntable 31 rotates, which is beneficial to maintaining the stability of the turntable 31 and also facilitates the accurate positioning of the grasping mechanism to grasp and release the sample bottle or the bottle cap. By setting multiple clamping stations and ensuring that their distances from the center of the turntable 31 are the same, the automatic opening device of the present utility model can achieve efficient batch processing while ensuring the consistency and stability of the operation.

[0032] Furthermore, according to an automatic bottle opening device provided by the present utility model, the number of the liquid transfer mechanisms 40 is preferably also multiple, and liquid addition operations can be performed on multiple sample bottles at the same time, thereby improving the overall working efficiency. The distance of each liquid transfer mechanism 40 from the center of the turntable 31 is the same, and the evenly distributed design ensures that all the liquid transfer mechanisms 40 can be in the same working position distance when the turntable 31 rotates, thus ensuring that each sample bottle can be accurately added with reagents.

[0033] According to an automatic bottle opening device provided by the present utility model, a stock solution bottle 41 for storing reagent stock solution is arranged at an adjacent position of the liquid transfer mechanism 40 to ensure the supply of reagents. Among them, the stock solution bottle 41 can be connected to the liquid transfer mechanism 40 through a liquid guiding mechanism (such as a pump) to supply the required reagent stock solution to the liquid transfer mechanism 40. In this way, a pump or other type of liquid guiding mechanism is responsible for sucking and transferring the reagent from the stock solution bottle 41 into the liquid transfer mechanism 40. In another case, the liquid transfer mechanism 40 itself can be provided with a sucking function, that is, the liquid transfer mechanism 40 can directly suck the reagent stock solution from the adjacent stock solution bottle 41 and then inject the reagent into the already opened reagent bottle. By arranging the stock solution bottle 41 near each liquid transfer mechanism 40 and adopting an appropriate liquid guiding mechanism or direct sucking function, the automatic bottle opening device of the present utility model can realize efficient and accurate reagent addition operations, ensuring the smooth progress of the detection process.

[0034] Preferably, according to an automatic bottle opening device provided by the present utility model, the liquid transfer mechanism 40 includes a vertical bracket 42, a vertical driver 43, and a syringe 44. The vertical bracket 42 is arranged on the operation table 30 to provide vertical support for the liquid transfer mechanism 40. The vertical driver 43 is arranged on the vertical bracket 42 and is used to control the vertical movement of the syringe 44. The vertical driver 43 can be electric or pneumatic and can accurately control the upward or downward movement of the syringe 44. The syringe 44 is arranged at the driving end of the vertical driver 43, and under the drive of the vertical driver 43, it moves upward or downward relative to the operation table 30, thereby realizing the action of adding reagents to the sample bottle or moving upward away from the sample bottle to prevent interference with the rotation of the turntable 31.

[0035] The first sliding table 12 and the second sliding table 13 in the above solution can be respectively provided with driving mechanisms to synchronously drive the two ends of the truss structure 11 to move. According to an automatic bottle opening device provided by the present utility model, preferably, one of the first sliding table 12 and the second sliding table 13 is a driving sliding table, and the other is a driven sliding table. That is to say, one of the sliding tables is equipped with a driving mechanism responsible for driving the movement of the truss structure 11, and the other sliding table moves following the action of the driving sliding table to maintain the synchronous movement of the two ends of the truss structure 11. As Figure 1As shown, the first sliding table 12 is provided with a driving mechanism, which can drive the truss structure 11 to move during use. The other end of the truss structure 11 is slidably fitted to the second sliding table 13 through a structure such as a slide rail. In this way, during the movement, the second sliding table 13 only plays a role of sliding support, thus reducing the requirement for setting the driving mechanism while ensuring the reliable load-bearing performance of the truss structure 11 and simplifying the device structure.

[0036] According to an automatic bottle-opening device provided by the present invention, on at least one side of the turntable 31, a position sensor 51 for detecting the rotation position of the turntable 31 is provided on the operation table 30. By detecting one or more induction positions of the turntable 31 by the position sensor 51, the rotation angle of the turntable 31 is monitored. By providing the position sensor 51 on the operation table 30 to monitor the rotation position of the turntable 31, the automatic bottle-opening device of the present invention can accurately control the rotation angle of the turntable 31, ensuring that the sample bottles at each clamping station can be accurately positioned to the required operation positions, so as to realize efficient and accurate reagent bottle opening and liquid adding operations.

[0037] Preferably, a plurality of the above-mentioned position sensors 51 can be provided. For example, a position sensor 51 can be provided near each liquid transfer mechanism 40 to monitor the alignment state between the liquid transfer mechanism 40 and the sample bottle. Through these position sensors 51, the relative positions between each liquid transfer mechanism 40 and the sample bottle can be monitored in real time, ensuring that the liquid transfer mechanism 40 can accurately align with the sample bottle mouth, so as to realize accurate reagent addition operations.

[0038] According to an automatic bottle-opening device provided by the present invention, a temporary storage rack 52 is provided on the operation table 30 at an adjacent position of the turntable 31, which is convenient for the grasping mechanism to place the removed bottle caps on the temporary storage rack 52. The temporary storage rack 52 is provided with a plurality of bottle cap receiving grooves for storing the bottle caps removed from the sample bottles, ensuring that the bottle caps are properly stored and avoiding the loss or confusion of the bottle caps during the operation. By providing the temporary storage rack 52 at an adjacent position of the turntable 31 and providing a plurality of bottle cap receiving grooves on the temporary storage rack 52, the automatic bottle-opening device of the present invention can effectively manage the removed bottle caps, ensure the safe storage of the bottle caps, and thus realize efficient and orderly reagent bottle opening operations.

[0039] The automatic bottle-opening device according to the preferred embodiment of the present invention includes a truss module, a grasping mechanism, an operation table 30, a turntable 31, a liquid transfer mechanism 40, a temporary storage rack 52 and other components. The turntable 31 is provided with a plurality of clamping stations, and each clamping station is used to position a sample bottle. The liquid transfer mechanism 40 is located around the turntable 31 and is used to add reagents to the sample bottles. The temporary storage rack 52 is located at an adjacent position of the turntable 31 and is provided with a plurality of bottle cap receiving grooves for storing the removed bottle caps. The working process of the device during use is as follows:

[0040] In the initial state, the turntable 31 on the operating table 30 is stationary, and the grasping mechanism is ready to perform a grasping action. The sample bottle is placed on the clamping station on the turntable 31 by the grasping mechanism for clamping and fixing. The control system starts the truss module, and drives the grasping mechanism to reach above the specified sample bottle through the first sliding table 12, the second sliding table 13, and the third sliding table 14. The electric gripper 23 of the grasping mechanism descends to the position of the bottle cap, and grasps the bottle cap through a grasping action. The electric gripper 23 rotates to remove the bottle cap from the sample bottle, and places the bottle cap in the bottle cap receiving groove on the temporary storage rack 52. After removing the bottle cap, the control system starts the turntable 31, and monitors the rotation position of the turntable 31 through the position sensor 51 to ensure that the sample bottle is positioned at the correct position below the pipetting mechanism 40. The syringe 44 of the pipetting mechanism 40 descends to the mouth of the sample bottle under the action of the vertical driver 43. The syringe 44 injects a preset amount of reagent stock solution into the sample bottle. After the liquid addition is completed, the syringe 44 rises and resets. The turntable 31 continues to rotate to an appropriate angle, the grasping mechanism retrieves the bottle cap from the temporary storage rack 52 again, then places the bottle cap back on the sample bottle with added liquid, and the electric gripper 23 rotates and tightens the bottle cap. The above process is repeated until all sample bottles have completed the operations of opening the cap and adding liquid.

[0041] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or mode are included in at least one embodiment or mode of the embodiments of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or modes. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or modes described in this specification and the features of different embodiments or modes.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. An automatic opening device, characterized in that, Comprising: A truss module, including a truss structure (11) and a first sliding table (12) and a second sliding table (13) that are parallel to each other. The two ends of the truss structure (11) are respectively arranged on the first sliding table (12) and the second sliding table (13), and a third sliding table (14) perpendicular to the first sliding table (12) and the second sliding table (13) is arranged on the truss structure (11); A grasping mechanism, including a sliding seat (21) arranged on the third sliding table (14), a vertical sliding table (22) arranged on the sliding seat (21), and an electric gripper (23) arranged on the vertical sliding table (22). The electric gripper (23) can perform grasping actions and rotational actions; An operating table (30), on which a turntable (31) is arranged. At least one clamping station for positioning a specimen bottle is arranged on the turntable (31), and a pipetting mechanism (40) for adding reagents is arranged around the turntable (31).

2. The automatic opening device according to claim 1, characterized in that, The truss module includes a first bracket (15) and a second bracket (16) arranged at intervals, and the first bracket (15) and the second bracket (16) have the same height; The first sliding table (12) is arranged on the first bracket (15), and the second sliding table (13) is arranged on the second bracket (16).

3. The automatic opening device according to claim 2, characterized in that The operating table (30) is located at the intermediate position between the first bracket (15) and the second, and the heights of the first bracket (15) and the second bracket (16) are higher than that of the operating table (30).

4. The automatic opening device according to claim 1, characterized in that, The number of the clamping stations is multiple, and the distance of each clamping station from the center of the turntable (31) is the same.

5. The automatic lid-opening device according to claim 4, wherein The number of the pipetting mechanisms (40) is multiple, and the distance of each pipetting mechanism (40) from the center of the turntable (31) is the same.

6. The automatic opening device according to claim 1, characterized in that A stock solution bottle (41) for storing reagent stock solution is arranged at the adjacent position of the pipetting mechanism (40).

7. The automatic lid-opening device according to claim 6, wherein, The pipetting mechanism (40) includes a vertical bracket (42), a vertical driver (43) and a syringe (44); The vertical bracket (42) is arranged on the operating table (30); The vertical driver (43) is arranged on the vertical bracket (42); The syringe (44) is arranged at the driving end of the vertical driver (43) to rise or fall relative to the operating table (30) under the drive of the vertical driver (43).

8. The automatic opening device according to any one of claims 1-7, characterized in that, One of the first sliding table (12) and the second sliding table (13) is a driving sliding table, and the other is a driven sliding table.

9. The automatic lid opening device according to any one of claims 1-7, characterized in that, On at least one side of the turntable (31), a position sensor (51) for detecting the rotational position of the turntable (31) is arranged on the operating table (30).

10. The automatic opening device according to any one of claims 1-7, characterized in that, A temporary storage rack (52) is arranged on the operating table (30) at the adjacent position of the turntable (31); A plurality of cap receiving grooves are arranged on the temporary storage rack (52) for storing the caps removed from the specimen bottles.

Images