Automatic sampling mechanism for logging detection and analysis equipment

Abstract

The utility model relates to an automatic sample introduction mechanism for logging detection analysis equipment, which comprises a right-angle sample introduction mechanism, a clamping jaw assembly and a charging tray assembly, the right-angle sample introduction mechanism is arranged on a working platform, the movable clamping jaw assembly is arranged on the right-angle sample introduction mechanism, and a charging tray mounting port is arranged on the working platform; the clamping jaw assembly comprises a first clamping jaw and a second clamping jaw which are driven by a clamping jaw air cylinder, and the first clamping jaw and the second clamping jaw are arranged at the corresponding air cylinder moving ends of the clamping jaw air cylinder in a replaceable mode respectively. The charging tray assembly comprises a charging tray and a plurality of sample containers arranged on the charging tray, the charging tray is placed in the charging tray mounting opening after being input, and the sample containers are clamped and transferred through cooperation of the first clamping jaw and the second clamping jaw. According to the utility model, the loading quantity of the sample containers is increased, the sample containers can be ensured to quickly and accurately inject samples, and meanwhile, various sample containers can be compatible.

Description

Technical Field

[0001] This utility model relates to the field of well logging detection, specifically an automatic sample feeding mechanism for well logging detection and analysis equipment. Background Technology

[0002] Well logging is mainly used for oil and gas resource assessment, which involves using various measuring instruments to acquire real-time data reflecting various aspects such as downhole geological structure, oil and gas content, and drilling operations during oil and gas drilling operations. For example, patent CN1306147C discloses a comprehensive well logging system and method for petroleum geological exploration, whose comprehensive well logging system includes equipment such as a chromatograph, fluorescence analyzer, and geochemical analyzer.

[0003] With technological advancements, the automation requirements for various logging and analysis equipment are becoming increasingly stringent, with the sample introduction mechanism being particularly crucial, as it relates to sample delivery accuracy and testing efficiency. Existing automated logging and analysis sample introduction mechanisms primarily employ a rotary table for sample introduction. For example, patent CN205333667U discloses an automated sample introduction system for light hydrocarbon logging, which uses a rotary table to rotate the sample bottle tray for sample introduction. Similarly, patent CN218824109U discloses an automated sample introduction rapid pyrolysis chromatography analyzer, which also utilizes a rotary table in conjunction with sampling grippers for sample introduction. However, existing rotary table sample introduction methods typically only have sample containers arranged around the outer circumference of the rotary table, limiting the number of sample containers it can hold. Furthermore, this method is usually only applicable to one type of sample container; for instance, the sample container in patent CN205333667U is a sample bottle, while the sample container in patent CN218824109U is a sample crucible. Utility Model Content

[0004] The purpose of this invention is to provide an automatic sample feeding mechanism for logging detection and analysis equipment, which can increase the number of sample containers it can hold while ensuring rapid and accurate sample feeding, and is also compatible with a variety of sample containers.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] An automatic sample feeding mechanism for a logging detection and analysis device includes a right-angle sample feeding mechanism, a gripper assembly, and a tray assembly. The right-angle sample feeding mechanism is mounted on a working platform, and a movable gripper assembly is provided on the right-angle sample feeding mechanism. The working platform has a tray mounting port. The gripper assembly includes a first gripper and a second gripper that are driven to open and close by a gripper cylinder. The first gripper and the second gripper are respectively replaceably mounted on the corresponding cylinder moving end of the gripper cylinder. The tray assembly includes a tray and a plurality of sample containers mounted on the tray. After the tray is fed in, it is placed in the tray mounting port. The sample containers are gripped and transferred by the cooperation of the first gripper and the second gripper. The inner side of the first gripper is a plane in contact with the sample container, and the inner side of the second gripper has a clamping groove that contacts the sample container.

[0007] The tray is square, and the sample containers are arranged in a matrix array in the corresponding mounting holes on the tray.

[0008] The inner side of the tray mounting port is provided with a tray support platform, and the tray support platform is provided with positioning pin holes. After the tray is placed into the tray mounting port, its edge is supported by the tray support platform, and the tray is provided with positioning pins that are inserted into the corresponding positioning pin holes.

[0009] The first gripper has a first connecting block at its end, and the first connecting block has a first mounting groove that is fastened to the corresponding cylinder moving end. The first connecting block is fixed to the corresponding cylinder moving end by a first mounting bolt.

[0010] The second gripper has a second connecting block at its end, and the second connecting block has a second mounting groove that is fastened to the corresponding cylinder moving end. The second connecting block is fixed to the corresponding cylinder moving end by a second mounting bolt.

[0011] The right-angle injection mechanism includes a longitudinal drive module, a longitudinal moving seat, a transverse drive module, a transverse moving seat, and a lifting drive module. The longitudinal drive module is located on the working platform, and the longitudinal moving seat is driven to move longitudinally through the longitudinal drive module. The transverse drive module is located on the longitudinal moving seat, and the transverse moving seat is driven to move laterally through the transverse drive module. The lifting drive module is located on the transverse moving seat, and the gripper assembly is driven to move up and down through the lifting drive module.

[0012] One end of the longitudinal moving seat is connected to the longitudinal driving module, and the other end is provided with a longitudinal moving guide plate. The working platform is provided with a longitudinal moving guide groove, and the lower side of the working platform is provided with a longitudinal slide rail. The lower end of the longitudinal moving guide plate passes through the longitudinal moving guide groove and is provided with a longitudinal slider that cooperates with the longitudinal slide rail.

[0013] The longitudinal moving seat is provided with a cable chain groove for accommodating the cable chain, and the transverse moving seat is provided with a cable chain frame. One end of the cable chain is fixed in the cable chain groove, and the other end is fixed on the cable chain frame.

[0014] The gripper assembly includes a cylinder mounting plate and a lifting connecting plate, wherein the cylinder mounting plate is horizontally disposed on the lifting connecting plate, the gripper cylinder is fixedly disposed on the lower side of the cylinder mounting plate, and the lifting connecting plate is fixedly connected to the lifting drive module.

[0015] A temperature control device is installed on the underside of the work platform.

[0016] The advantages and positive effects of this utility model are as follows:

[0017] 1. This utility model sets up the material tray assembly separately and does not require rotation like the turntable in the prior art, which can greatly increase the number of sample containers that can be held. At the same time, this utility model uses a right-angle injection mechanism to drive the gripper assembly to move, which can ensure accurate gripping and injection of sample containers and has a larger range of movement to meet the injection needs of more sample containers.

[0018] 2. The first and second grippers in the gripper assembly of this utility model are compatible with the gripping and injection of various sample containers. When the size difference between different types of sample containers is relatively large, the first and second grippers can also be replaced as needed.

[0019] 3. In this utility model, the material tray in the material tray assembly is designed as a square structure, which facilitates input and positioning. The sample containers are arranged in a matrix array in the corresponding mounting holes on the material tray. This can be used in conjunction with the right-angle injection mechanism to achieve accurate clamping of the sample containers. The plane on the inner side of the first gripper is parallel to the longitudinal column of the sample container and can serve as a positioning reference for moving into place. The clamping groove on the inner side of the second gripper ensures that the sample containers are firmly clamped. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0021] Figure 2 for Figure 1 A schematic diagram of the right-angle injection mechanism.

[0022] Figure 2a for Figure 2 Left view of the right-angle injection mechanism.

[0023] Figure 3 for Figure 2 A schematic diagram of the middle gripper assembly.

[0024] Figure 4 for Figure 3A schematic diagram showing the state of the sample vial when the middle gripper assembly is holding it.

[0025] Figure 5 for Figure 3 A schematic diagram showing the state of the middle gripper assembly when it is holding the pressure ring.

[0026] Figure 6 for Figure 1 Schematic diagram of the placement of the feed tray assembly.

[0027] Figure 7 for Figure 1 Top view of the feed tray assembly and working platform.

[0028] Figure 8 for Figure 7 AA view in

[0029] Figure 9 for Figure 4 A diagram showing the intermediate sample vials placed on the tray.

[0030] Figure 10 for Figure 5 A schematic diagram of the intermediate pressure ring placed on the material tray.

[0031] Wherein, 1 is a right-angle injection mechanism, 101 is a longitudinal drive module, 102 is a longitudinal moving seat, 1021 is a longitudinal moving guide plate, 1022 is a cable chain groove, 1023 is a cable chain, 103 is a transverse drive module, 104 is a transverse moving seat, 1041 is a cable chain frame, 105 is a lifting drive module, 106 is a working platform, 1061 is a longitudinal moving guide groove, 1062 is a tray mounting port, 1063 is a tray support platform, 10631 is a positioning pin hole, 107 is a longitudinal slide rail, 2 201 is the first gripper, 2011 is the first mounting bolt, 2012 is the first mounting groove, 202 is the second gripper, 2021 is the second mounting bolt, 2022 is the clamping slot, 203 is the gripper cylinder, 2031 is the cylinder moving end, 204 is the cylinder mounting plate, 205 is the lifting connecting plate, 3 is the material tray assembly, 301 is the material tray, 302 is the sample container, 303 is the positioning pin, 4 is the frame, 5 is the crucible, 6 is the sample bottle, 7 is the pressure ring, and 8 is the temperature control device. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings.

[0033] like Figures 1-10 As shown, this utility model includes a right-angle injection mechanism 1, a gripper assembly 2, and a material tray assembly 3, wherein... Figure 2As shown, the right-angle injection mechanism 1 is mounted on a working platform 106, and the right-angle injection mechanism 1 is provided with a movable gripper assembly 2. The working platform 106 is provided with a tray mounting port 1062 for receiving the tray assembly 3; Figures 3-5 As shown, the gripper assembly 2 includes a first gripper 201 and a second gripper 202 driven by a gripper cylinder 203, and the first gripper 201 and the second gripper 202 are respectively replaceably disposed on the corresponding cylinder moving end 2031 of the gripper cylinder 203; as Figure 6 As shown, the tray assembly 3 is provided with multiple sample containers 302, and as... Figures 3-5 As shown, the sample container 302 is clamped by the first gripper 201 and the second gripper 202. The inner side of the first gripper 201 is a plane, and the inner side of the second gripper 202 is provided with a clamping groove 2022 that contacts the sample container 302.

[0034] like Figure 1 and Figure 6 As shown, this utility model firstly separates the material tray assembly 3 and eliminates the need for it to rotate, thus greatly increasing the number of sample containers 302 that can be held. Secondly, as... Figure 2 As shown, this utility model utilizes a right-angle sample injection mechanism 1 to drive the gripper assembly 2 to move, ensuring accurate gripping and injection of the sample container 302, while also having a larger movement range to meet the injection needs of a larger number of sample containers 302. Again, as... Figures 3-5 As shown, the first gripper 201 and the second gripper 202 of this utility model are compatible with the clamping and injection operations of various sample containers 302. The inner side of the first gripper 201 is a flat surface that can serve as a reference for movement and positioning, facilitating the right-angle injection mechanism 1 to accurately move the gripper assembly 2 above the corresponding sample container 302. After the gripper assembly 2 descends and covers the corresponding sample container 302, the gripper slot 2022 on the second gripper 202 can cooperate with the inner surface of the first gripper 201 to clamp and fix the sample container 302. When the size difference between different types of sample containers 302 is not significant, the first gripper 201 and the second gripper 202 can be driven by the gripper cylinder 203 to open to a suitable distance to meet the clamping needs of different sample containers 302. However, when the size difference between different types of sample containers 302 is relatively large, the first gripper 201 and the second gripper 202 can be replaced with appropriate sizes as needed. The gripper cylinder 203 is a known technology in the art and a commercially available product.

[0035] like Figure 1 and Figures 9-10As shown, the tray assembly 3 includes a square tray 301, and each sample container 302 is arranged in a matrix array in corresponding mounting holes on the tray 301. The matrix array of the sample containers 302 can work with the right-angle injection mechanism 1 to accurately clamp the sample containers 302. The inner plane of the first gripper 201 is parallel to the longitudinal column of the sample containers 302. In this way, the equipment control system can set the target points to be moved sequentially by the gripper assembly 2 according to the matrix distribution of mounting holes on the tray 301. The gripper assembly 2 can use a point on the inner plane of the first gripper 201 as the positioning reference for moving into position, such as the midpoint of the inner plane of the first gripper 201. The target point is the point where the sample container 302 is tangent to the midpoint of the inner plane of the first gripper 201. When the midpoint of the inner plane of the first gripper 201 moves to the target point, it can be determined that the gripper assembly 2 has moved into position. Furthermore, since the first gripper 201 and the second gripper 202 of this invention can be replaced as needed, regardless of the replacement method, as long as the midpoint of the inner plane of the first gripper 201 is tangent to one side of the corresponding sample container 302, the accurate movement of the gripper assembly 2 can be guaranteed. This invention can also set multiple control programs based on the above principle and according to different sample containers 302, material trays 301, and gripper sizes. When the first gripper 201, the second gripper 202, and the sample container 302 are replaced accordingly, the operator can switch the control system to the corresponding control program. This invention can also use other suitable control methods to control the right-angle sample feeding mechanism 1 to drive the gripper assembly 2 to move, as needed.

[0036] like Figure 1 and Figure 3 As shown, one application example of this utility model is crucible 5, such as... Figure 4 and Figure 9 As shown, another application example of this utility model is sample bottle 6, such as... Figure 5 and Figure 10 As shown, another application example of this utility model is the pressure ring 7, in which the sample to be tested, such as rock chips, can be compacted and filled into the pressure ring 7.

[0037] like Figures 3-5 As shown, in this embodiment, the first gripper 201 has a first connecting block at its end, and the first connecting block has a first mounting groove 2012 that is fastened to the corresponding cylinder moving end 2031. The first connecting block is fixed to the corresponding cylinder moving end 2031 by a first mounting bolt 2011.

[0038] like Figures 3-5As shown, in this embodiment, the second gripper 202 has a second connecting block at its end, and the second connecting block has a second mounting groove that is fastened to the corresponding cylinder moving end 2031. The second connecting block is fixed to the corresponding cylinder moving end 2031 by a second mounting bolt 2021.

[0039] In addition, flexible blocks or other components may be provided on the inner side of the first gripper 201 and the inner side of the clamping slot 2022 of the second gripper 202 as needed to avoid damage to the sample container 302. This is a well-known technology in the field.

[0040] like Figure 2 As shown, in this embodiment, the right-angle injection mechanism 1 includes a longitudinal drive module 101, a longitudinal moving seat 102, a transverse drive module 103, a transverse moving seat 104, and a lifting drive module 105. The longitudinal drive module 101 is mounted on the working platform 106, and the longitudinal moving seat 102 is driven to move longitudinally via the longitudinal drive module 101. The transverse drive module 103 is mounted on the longitudinal moving seat 102, and the transverse moving seat 104 is driven to move laterally via the transverse drive module 103. The lifting drive module 105 is mounted on the transverse moving seat 104, and the gripper assembly 2 is driven to move up and down via the lifting drive module 105. In this embodiment, the longitudinal drive module 101, the transverse drive module 103, and the lifting drive module 105 can employ a motor-driven lead screw and nut structure to achieve precise movement control. The lead screw is driven to rotate by a motor, and the nut is fitted onto the lead screw and fixedly connected to the corresponding moving seat. This invention can also employ other suitable linear drive devices as needed.

[0041] like Figures 2-2a As shown, in this embodiment, one end of the longitudinal moving seat 102 is connected to the longitudinal driving module 101, and the other end is provided with a longitudinal moving guide plate 1021. The working platform 106 is provided with a longitudinal moving guide groove 1061, and the lower side of the working platform 106 is provided with a longitudinal slide rail 107. The lower end of the longitudinal moving guide plate 1021 passes through the longitudinal moving guide groove 1061 and is provided with a longitudinal slider that cooperates with the longitudinal slide rail 107.

[0042] like Figure 2 As shown, in this embodiment, the longitudinal moving seat 102 is provided with a cable chain groove 1022 for accommodating the cable chain 1023, and the transverse moving seat 104 is provided with a cable chain frame 1041. One end of the cable chain 1023 is fixed in the cable chain groove 1022, and the other end is fixed to the cable chain frame 1041. In this way, the cable chain 1023 can move with the transverse moving seat 104. The inside of the cable chain 1023 is used to accommodate various device cables, such as wires and cables.

[0043] like Figure 3As shown, in this embodiment, the gripper assembly 2 further includes a cylinder mounting plate 204 and a lifting connecting plate 205. The cylinder mounting plate 204 is horizontally disposed on the lifting connecting plate 205, and the gripper cylinder 203 is fixedly disposed on the lower side of the cylinder mounting plate 204. The lifting connecting plate 205 is fixedly connected to the lifting drive module 105. A positioning sensor can be provided on the gripper cylinder 203 as needed to control the gripper to move into position. The positioning sensor is a technology known in the art and is a commercially available product.

[0044] like Figure 2 As shown, in this embodiment, a tray support platform 1063 is provided on the inner side of the edge of the tray mounting port 1062, and a positioning pin hole 10631 is provided on the tray support platform 1063, as shown. Figure 8 As shown, after the material tray 301 in the material tray assembly 3 is placed into the material tray mounting port 1062, its edge is supported by the material tray support platform 1063, and the material tray 301 is provided with a positioning pin 303 which is inserted into the corresponding positioning pin hole 10631 to achieve accurate positioning.

[0045] like Figure 8 As shown, a temperature control device 8 is provided on the lower side of the working platform 106. In this embodiment, the temperature control device 8 is a refrigeration device (a technology known in the art and a commercially available product). When the material tray 301 is placed in the material tray mounting port 1062, the control device 8 can cool down the sample container 302 on the material tray 301. This utility model can also change the temperature control device 8 to a heating device (a technology known in the art and a commercially available product) according to the sample requirements and heat the sample container 302.

[0046] like Figure 1 As shown, in this embodiment, the working platform 106 is mounted on a frame 4, and the control device 8 is located inside the frame 4.

[0047] The working principle of this utility model is as follows:

[0048] In operation, the operator (or robotic arm) can place the entire tray 301, carrying all sample containers 302, into the tray mounting port 1062 on the work platform 106 at once, or place the tray 301 into the tray mounting port 1062 first, and then place the sample containers 302 that have completed other processes onto the tray 301 one by one. After all the sample containers 302 have been placed, the control device 8 on the lower side of the work platform 106 is activated to perform temperature treatment on each sample container 302 on the tray 301. After the treatment is completed, the right-angle sample feeding mechanism 1 is activated and drives the gripper assembly 2 to move and automatically grip the corresponding sample container 302 on the tray 301 to complete the sample feeding operation.

[0049] In this invention, the material tray assembly 3 is set up separately and does not need to be rotated like the turntable in the prior art. Therefore, the number of sample containers 302 that can be held can be greatly increased. At the same time, this invention uses the right-angle injection mechanism 1 to drive the gripper assembly 2 to move, which can ensure the accurate gripping and injection of sample containers 302. It can also have a larger range of movement to meet the injection needs of more sample containers 302.

[0050] And such Figures 3-5 As shown, the first gripper 201 and the second gripper 202 in the gripper assembly 2 of this utility model can be compatible with the gripping and sample feeding operations of various sample containers 302. When the size difference between different types of sample containers 302 is not significant, the first gripper 201 and the second gripper 202 can be driven by the gripper cylinder 203 to open to a suitable distance to meet the gripping needs of different sample containers 302. However, when the size difference between different types of sample containers 302 is relatively large, the first gripper 201 and the second gripper 202 can be replaced with appropriate size specifications as needed.

[0051] Other examples Figure 1 and Figures 3-5 As shown, the present invention designs the material tray 301 of the material tray assembly 3 as a square structure to facilitate input and positioning. Each sample container 302 is arranged in a matrix array in the corresponding mounting holes on the material tray 301. This can be used in conjunction with the right-angle sample feeding mechanism 1 to achieve accurate clamping of the sample container 302. For example, the plane on the inner side of the first gripper 201 is parallel to the longitudinal column of the sample container 302 and can be used as a positioning reference for moving into place, while the clamping groove 2022 on the inner side of the second gripper 202 ensures that the sample container 302 is firmly clamped.

Claims

1. An automatic sample feeding mechanism for well logging detection and analysis equipment, characterized in that: The system includes a right-angle injection mechanism (1), a gripper assembly (2), and a tray assembly (3). The right-angle injection mechanism (1) is mounted on a working platform (106), and the right-angle injection mechanism (1) is provided with a movable gripper assembly (2). The working platform (106) is provided with a tray mounting port (1062). The gripper assembly (2) includes a first gripper (201) and a second gripper (202) driven to open and close by a gripper cylinder (203). The first gripper (201) and the second gripper (202) are respectively replaceable and are provided with corresponding parts on the gripper cylinder (203). On the cylinder moving end (2031); the material tray assembly (3) includes a material tray (301) and a plurality of sample containers (302) disposed on the material tray (301). After the material tray (301) is input, it is placed in the material tray mounting port (1062). The sample container (302) is clamped and transferred by the cooperation of the first gripper (201) and the second gripper (202). The contact surface between the inner side of the first gripper (201) and the sample container (302) is a plane. The inner side of the second gripper (202) is provided with a clamping groove (2022) that contacts the sample container (302).

2. The automatic sample feeding mechanism for well logging detection and analysis equipment according to claim 1, characterized in that: The tray (301) is square, and each sample container (302) is arranged in a matrix array in the corresponding mounting holes on the tray (301).

3. The automatic sample feeding mechanism for well logging detection and analysis equipment according to claim 1, characterized in that: The inner edge of the tray mounting port (1062) is provided with a tray support platform (1063), and the tray support platform (1063) is provided with a positioning pin hole (10631). After the tray (301) is placed into the tray mounting port (1062), its edge is supported by the tray support platform (1063), and the tray (301) is provided with a positioning pin (303) which is inserted into the corresponding positioning pin hole (10631).

4. The automatic sample feeding mechanism for well logging detection and analysis equipment according to claim 1, characterized in that: The first gripper (201) has a first connecting block at its end, and the first connecting block has a first mounting groove (2012) that is fastened to the corresponding cylinder moving end (2031). The first connecting block is fixed to the corresponding cylinder moving end (2031) by a first mounting bolt (2011).

5. The automatic sample feeding mechanism for well logging detection and analysis equipment according to claim 1, characterized in that: The second gripper (202) has a second connecting block at its end, and the second connecting block has a second mounting groove that is fastened to the corresponding cylinder moving end (2031). The second connecting block is fixed to the corresponding cylinder moving end (2031) by a second mounting bolt (2021).

6. The automatic sample feeding mechanism for well logging detection and analysis equipment according to claim 1, characterized in that: The right-angle injection mechanism (1) includes a longitudinal drive module (101), a longitudinal moving seat (102), a transverse drive module (103), a transverse moving seat (104), and a lifting drive module (105). The longitudinal drive module (101) is located on the working platform (106), and the longitudinal moving seat (102) is driven to move longitudinally through the longitudinal drive module (101). The transverse drive module (103) is located on the longitudinal moving seat (102), and the transverse moving seat (104) is driven to move laterally through the transverse drive module (103). The lifting drive module (105) is located on the transverse moving seat (104), and the gripper assembly (2) is driven to lift through the lifting drive module (105).

7. The automatic sample feeding mechanism for well logging detection and analysis equipment according to claim 6, characterized in that: One end of the longitudinal moving seat (102) is connected to the longitudinal driving module (101), and the other end is provided with a longitudinal moving guide plate (1021). The working platform (106) is provided with a longitudinal moving guide groove (1061), and the lower side of the working platform (106) is provided with a longitudinal slide rail (107). The lower end of the longitudinal moving guide plate (1021) passes through the longitudinal moving guide groove (1061) and is provided with a longitudinal slider that cooperates with the longitudinal slide rail (107).

8. The automatic sample feeding mechanism for logging detection and analysis equipment according to claim 6, characterized in that: The longitudinal moving seat (102) is provided with a drag chain groove (1022) for accommodating the drag chain (1023), and the transverse moving seat (104) is provided with a drag chain frame (1041). One end of the drag chain (1023) is fixed in the drag chain groove (1022), and the other end is fixed on the drag chain frame (1041).

9. The automatic sample feeding mechanism for logging detection and analysis equipment according to claim 6, characterized in that: The gripper assembly (2) includes a cylinder mounting plate (204) and a lifting connecting plate (205), wherein the cylinder mounting plate (204) is horizontally disposed on the lifting connecting plate (205), the gripper cylinder (203) is fixedly disposed on the lower side of the cylinder mounting plate (204), and the lifting connecting plate (205) is fixedly connected to the lifting drive module (105).

10. The automatic sample feeding mechanism for well logging detection and analysis equipment according to claim 1, characterized in that: A temperature control device (8) is provided on the lower side of the working platform (106).

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