Strength detection device for a housing interior

Abstract

The present disclosure discloses a kind of strength detection device for shell inner cavity, belong to mechanical strength detection field.The strength detection device for shell inner cavity, including first cover and second cover;First cover includes first lid body, connecting rod and first locking part, first lid body is connected with the first end of connecting rod, first lid body has water inlet channel, the first end of water inlet channel is located in the side of first lid body away from connecting rod, connecting rod has water outlet channel, the first end of water outlet channel is connected with the second end of water inlet channel, the second end of water outlet channel is located in the outer side wall of connecting rod, the second end of connecting rod is inserted in second cover, first locking part is detachably connected with connecting rod, and first locking part is in contact with the side of second cover away from first lid body.The strength detection device provided in the embodiment of the present disclosure is simple to install, and can improve detection efficiency.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of mechanical strength detection, and particularly relates to a strength detection device for a shell inner cavity. BACKGROUND

[0002] A shell is a common part in mechanical devices. There is a shell which is applied to a ship underwater cabin sealing device. Since the shell is installed on the cabin wall, the inner cavity is under pressure, so before being formally put into use, the strength of the shell inner cavity needs to be detected to avoid breakage, water leakage and other problems during use.

[0003] In the related art, the strength of the shell inner cavity is detected by a strength detection device. The strength detection device includes two covers and a plurality of long rod studs. The two covers are respectively placed at both ends of the shell and are fixed by the plurality of long rod studs.

[0004] However, when installing the above strength detection device, the two covers need to be adjusted synchronously, and then the plurality of long rod studs are installed, so the installation process is very cumbersome, resulting in low detection efficiency. SUMMARY

[0005] The present disclosure provides a strength detection device for a shell inner cavity, which is easy to install and can improve detection efficiency. The technical solution is as follows:

[0006] The present disclosure provides a strength detection device for a shell inner cavity, which includes a first cover and a second cover.

[0007] The first cover includes a first cover body, a connecting rod and a first locking member. The first cover body is connected with the first end of the connecting rod. The first cover body has a water inlet channel. The first end of the water inlet channel is located on the side of the first cover body away from the connecting rod. The connecting rod has a water outlet channel. The first end of the water outlet channel is connected with the second end of the water inlet channel. The second end of the water outlet channel is located on the outer side wall of the connecting rod. The second end of the connecting rod is inserted into the second cover. The first locking member is detachably connected with the connecting rod, and the first locking member abuts against the side of the second cover away from the first cover body.

[0008] In one implementation manner of the present disclosure, the first cover body includes a flange plate and a boss.

[0009] The outer diameter of the boss is smaller than the outer diameter of the flange plate. One end of the boss is connected with one side of the flange plate, and the other end of the boss is connected with the first end of the connecting rod.

[0010] The side of the flange plate connected with the boss has a first sealing ring, and the first sealing ring is arranged around the boss.

[0011] In one implementation of the present disclosure, the water inlet channel comprises a water inlet socket and a connecting hole;

[0012] The inner diameter of the water inlet socket is larger than that of the connecting hole, the water inlet socket is located on the side of the first cover body away from the connecting rod, and the connecting hole is connected with the water inlet socket and the water outlet channel respectively.

[0013] In one implementation of the present disclosure, the water inlet socket has a locking groove therein;

[0014] The locking groove is located on the hole wall of the water inlet socket, and the locking groove extends along the circumference of the water inlet socket, and the locking groove is used for accommodating the locking flange of the water pipe.

[0015] In one implementation of the present disclosure, the connecting rod has a plurality of water outlet channels therein;

[0016] Each of the water outlet channels is connected with the second end of the water inlet channel.

[0017] In one implementation of the present disclosure, the plurality of water outlet channels are located in the same plane, and the first ends of the plurality of water outlet channels intersect at the axis of the connecting rod, and the second ends of the plurality of water outlet channels are arranged in sequence and spaced apart circumferentially with the axis of the connecting rod as the axis.

[0018] In one implementation of the present disclosure, the outer side wall of the connecting rod has a second sealing ring;

[0019] The second sealing ring is close to the second end of the connecting rod, the second sealing ring extends along the circumference of the connecting rod, and the second sealing ring is clamped between the outer side wall of the connecting rod and the second cover.

[0020] In one implementation of the present disclosure, the outer side wall of the connecting rod has an external thread, the external thread extends along the axis of the connecting rod, and the external thread is close to the second end of the connecting rod;

[0021] The first locking member is threadedly connected with the external thread.

[0022] In one implementation of the present disclosure, the second cover comprises a second cover body and a second locking member;

[0023] The second cover body has a plurality of mounting holes, and each of the mounting holes is arranged in sequence and spaced apart circumferentially along the outer edge of the second cover body;

[0024] The second locking member corresponds to the mounting hole one by one, and the second locking member is inserted into the corresponding mounting hole.

[0025] In an implementation form of the present disclosure, one side of the second cover body towards the first cover has a third sealing ring;

[0026] The third sealing ring extends along the circumference of the second cover body and is located between the second locking member and the first locking member.

[0027] The technical scheme provided by the embodiments of the present disclosure has at least the following beneficial effects:

[0028] The strength detection device provided by the embodiments of the present disclosure can detect the strength of the inner cavity of the shell. During detection, first, the connecting rod is inserted into the inner cavity of the shell, so that the second end of the connecting rod is located at the second end of the shell, and the first cover body abuts against the first end of the shell. Then, the second cover is sleeved on the second end of the connecting rod, so that the second cover abuts against the second end of the shell. In this state, since the second cover and the first cover have an assembly relationship through the connecting rod, the positions of the two can be determined synchronously, thereby completing the position adjustment. Next, the first locking member is connected with the connecting rod, so that the first locking member abuts against the side of the second cover away from the first cover, thereby enabling the first cover and the second cover to clamp the cavity, and further completing the installation of the strength detection device. Finally, water is injected from the first end of the water inlet channel, so that the water flows through the water inlet channel and the water outlet channel in sequence, and finally flows into the inner cavity of the shell from the second end of the water outlet channel, thereby pressurizing the inner cavity of the shell to detect the strength of the inner cavity of the shell.

[0029] That is, the strength detection device provided by the embodiments of the present disclosure can connect the first cover and the second cover together through the connecting rod, thereby realizing the position synchronization between the two, without the need to adjust the positions of the two respectively, effectively improving the installation convenience and detection efficiency. Moreover, the first locking member can realize the fixation of the first cover and the second cover on the shell, without the need to install multiple long rod studs as mentioned in the related art, thereby further improving the installation convenience and detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0031] Figure 1 is a structural schematic view of the strength detection device for the inner cavity of the shell provided by the embodiments of the present disclosure.

[0032] Meaning of the reference signs:

[0033] 10, first cover;

[0034] 110, first cover; 111, flange plate; 112, boss;

[0035] 120, connecting rod;

[0036] 130, first locking member;

[0037] 140, water inlet channel; 141, water inlet hole; 142, connecting hole; 143, locking groove;

[0038] 150, water outlet channel;

[0039] 160, first sealing ring;

[0040] 170, second sealing ring;

[0041] 20, second cover;

[0042] 210, second cover; 221, mounting hole; 220, second locking member; 230, third sealing ring;

[0043] 100, shell. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0045] The shell is a common part in mechanical devices. There is a shell that is applied to a ship underwater cabin sealing device. Since the shell is installed on the cabin wall, the inner cavity is under pressure, so before being formally delivered for use, the strength of the shell inner cavity needs to be detected to avoid damage, water leakage and other problems during use.

[0046] In the related art, the strength of the shell inner cavity is detected by a strength detection device. The strength detection device includes two covers and a plurality of long rod studs, and the two covers are respectively placed at both ends of the shell and are fixed by the plurality of long rod studs.

[0047] However, when installing the above strength detection device, the two covers need to be adjusted synchronously, and then a plurality of long rod studs are installed, so the installation process is very cumbersome, resulting in low detection efficiency.

[0048] In order to solve the above technical problems, the present disclosure provides a strength detection device for the inner cavity of a shell, Figure 1 The structure of the strength detection device is shown in the figure, in order to better show the use of the strength detection device, Figure 1 The shell 100 is also added in the middle. Referring to Figure 1In the embodiment, the strength detection device comprises a first cover 10 and a second cover 20.

[0049] The first cover 10 comprises a first cover body 110, a connecting rod 120 and a first locking member 130. The first cover body 110 is connected with a first end of the connecting rod 120. The first cover body 110 has a water inlet channel 140 therein. A first end of the water inlet channel 140 is located on a side of the first cover body 110 which is away from the connecting rod 120. The connecting rod 120 has a water outlet channel 150 therein. A first end of the water outlet channel 150 is connected with a second end of the water inlet channel 140. A second end of the water outlet channel 150 is located on an outer side wall of the connecting rod 120. A second end of the connecting rod 120 is inserted into the second cover 20. The first locking member 130 is detachably connected with the connecting rod 120. The first locking member 130 abuts against a side of the second cover 20 which is away from the first cover body 110.

[0050] The strength detection device provided by the embodiment of the present disclosure can detect the strength of the inner cavity of the shell. In the detection process, first, the connecting rod 120 is inserted into the inner cavity of the shell, so that the second end of the connecting rod 120 is located at the second end of the shell 100, and the first cover body 110 abuts against the first end of the shell 100. Then, the second cover 20 is sleeved on the second end of the connecting rod 120, so that the second cover 20 abuts against the second end of the shell 100. In this state, since the second cover 20 and the first cover 10 are in an assembled relationship through the connecting rod 120, the positions of the two can be determined synchronously, thereby completing the position adjustment. Next, the first locking member 130 is connected with the connecting rod 120, so that the first locking member 130 abuts against the side of the second cover 20 which is away from the first cover body 110, thereby enabling the first cover 10 and the second cover 20 to clamp the cavity, and further completing the installation of the strength detection device. Finally, water is injected from the first end of the water inlet channel 140, so that the water flows through the water inlet channel 140 and the water outlet channel 150 in sequence, and finally flows into the inner cavity of the shell from the second end of the water outlet channel 150, thereby enabling the inner cavity of the shell to be pressurized to detect the strength of the inner cavity of the shell.

[0051] That is, the strength detection device provided by the embodiment of the present disclosure can connect the first cover 10 and the second cover 20 together through the connecting rod 120, thereby realizing the position synchronization between the two, without the need to adjust the positions of the two respectively, effectively improving the installation convenience and detection efficiency. Moreover, the first cover 10 and the second cover 20 can be fixed on the shell 100 through the first locking member 130, without the need to install multiple long rod studs as mentioned in the related art, thereby further improving the installation convenience and detection efficiency.

[0052] Continuing to refer to Figure 1 In the embodiment, the first cover body 110 comprises a flange plate 111 and a boss 112.

[0053] The outer diameter of the boss 112 is smaller than that of the flange plate 111, one end of the boss 112 is connected to one side of the flange plate 111, and the other end of the boss 112 is connected to the first end of the connecting rod 120. The side of the flange plate 111 connected to the boss 112 is provided with a first sealing ring 160, and the first sealing ring 160 is arranged around the boss 112.

[0054] During assembly of the first cover body 110, the boss 112 is inserted into the first end of the shell 100, which can play a positioning role. The flange plate 111 abuts against the first end of the shell 100, and the sealing between the flange plate 111 and the shell 100 is achieved through the first sealing ring 160.

[0055] Exemplarily, the shapes of the flange plate 111 and the boss 112 match the shape of the shell 100. For example, if the outer contour and the inner contour of the shell 100 are both cylindrical, then correspondingly, the flange plate 111 and the boss 112 are both disc-shaped structural members, the outer edge of the flange plate 111 is flush with the outer side wall of the shell 100, and the outer side wall of the boss 112 is fitted with the inner side wall of the shell 100. Such a design can better realize the mutual assembly between the first cover body 110 and the shell 100.

[0056] When the flange plate 111 and the boss 112 are both disc-shaped structural members, the flange plate 111 and the boss 112 are coaxially arranged.

[0057] Exemplarily, the first sealing ring 160 is a rubber O-ring.

[0058] Exemplarily, the flange plate 111, the boss 112, and the connecting rod 120 are an integral structural member. Such a design can improve the manufacturing efficiency of the first cover 10, and also ensure the structural strength of the first cover 10, thereby improving the reliability of the strength detection device.

[0059] Continuing to refer to Figure 1 In the embodiment, the water inlet channel 140 includes a water inlet hole 141 and a connecting hole 142.

[0060] The inner diameter of the water inlet hole 141 is greater than that of the connecting hole 142, the water inlet hole 141 is located on the side of the first cover body 110 away from the connecting rod 120, and the connecting hole 142 is connected to the water inlet hole 141 and the water outlet channel 150, respectively.

[0061] In the above implementation manner, the water inlet hole 141 is used for inserting a water pipe, and the connecting hole 142 is used for transmitting water flow to the water outlet channel 150. Since the inner diameter of the water inlet hole 141 is greater than that of the connecting hole 142, the insertion of the water pipe can be facilitated, thereby improving the detection efficiency.

[0062] In the embodiment, the water inlet socket 141 has a locking groove 143.

[0063] The locking groove 143 is located on the hole wall of the water inlet socket 141 and extends along the circumference of the water inlet socket 141, and is used for accommodating the locking flange of the water pipe.

[0064] The outer wall of the water pipe has a locking flange close to the end of the water pipe. When the water pipe is inserted into the water inlet socket 141, the locking flange can be clamped into the locking groove 143, thereby realizing mutual locking between the water pipe and the water inlet socket 141.

[0065] Exemplarily, the locking flange has a certain elasticity and can be elastically deformed during the insertion into the water inlet socket 141, so as to be able to enter the locking groove 143. And after the locking flange enters the locking groove 143, the elastic property can be released to realize clamping in the locking groove 143.

[0066] In some examples, the locking flange is elastic rubber, which can realize the clamping function on one hand and also play a sealing role on the other hand, avoiding water leakage at the gap between the water pipe and the water inlet socket 141.

[0067] In other examples, the locking flange is an elastic spring, which can further ensure the clamping firmness between the locking flange and the locking groove 143.

[0068] In the embodiment, the connecting rod 120 has a plurality of water outlet channels 150, and each water outlet channel 150 is connected with the second end of the water inlet channel 140.

[0069] In the above implementation, a plurality of water outlet channels 150 are arranged, which can improve the water outlet efficiency on one hand and also make the water outlet more uniform, avoiding sharp increase of water pressure at a certain place.

[0070] Exemplarily, the plurality of water outlet channels 150 are located in the same plane, and the first ends of the plurality of water outlet channels 150 intersect at the axis of the connecting rod 120, and the second ends of the plurality of water outlet channels 150 are arranged in sequence and spaced apart along the circumference with the axis of the connecting rod 120 as the axis.

[0071] Such arrangement of the water outlet channels 150 simplifies the processing difficulty of the water outlet channels 150 on the basis of ensuring the functionality of the water outlet channels 150.

[0072] Continuing to refer to Figure 1 In the embodiment, the outer side wall of the connecting rod 120 has a second sealing ring 170.

[0073] The second sealing ring 170 is arranged close to the second end of the connecting rod 120, extends along the circumference of the connecting rod 120, and is clamped between the outer sidewall of the connecting rod 120 and the second cover 20.

[0074] In the above implementation, the second sealing ring 170 can realize the sealing between the connecting rod 120 and the second cover 20, and avoid water leakage between the connecting rod 120 and the second cover 20, thereby ensuring the reliability of the strength detection.

[0075] Exemplarily, the second sealing ring 170 is a rubber O-ring.

[0076] In the embodiment, the outer sidewall of the connecting rod 120 has an external thread extending along the axial direction of the connecting rod 120, and the external thread is arranged close to the second end of the connecting rod 120. The first locking member 130 is threadedly connected with the external thread.

[0077] In the above implementation, the first locking member 130 is a nut, and the first locking member 130 is threadedly connected with the connecting rod 120. By screwing the first locking member 130, the first locking member 130 can be tightly abutted with the second cover 20, thereby clamping the barrel between the first cover 10 and the second cover 20.

[0078] Exemplarily, a gasket is further arranged between the first locking member 130 and the second cover 20, which can prevent the first locking member 130 from loosening.

[0079] Continuously referring to Figure 1 In the embodiment, the second cover 20 comprises a second cover body 210 and a second locking member 220.

[0080] The second cover body 210 has a plurality of mounting holes 221, and each mounting hole 221 is arranged along the outer edge of the second cover body 210 in sequence and spaced apart in the circumferential direction. The second locking member 220 corresponds to each mounting hole 221, and the second locking member 220 is inserted into the corresponding mounting hole 221.

[0081] In the above implementation, the second locking member 220 is used to strengthen the sealing reliability between the second cover 20 and the shell 100, so as to ensure that the second cover 20 can be tightly pressed on the shell 100.

[0082] It is worth noting that the second end of the shell 100 itself has a plurality of perforations, and the mounting holes 221 on the second cover body 210 are designed according to the perforations on the shell 100. In other embodiments, if the second end of the shell 100 does not have perforations, the mounting holes 221 on the second cover body 210 do not need to be arranged, and the second locking member 220 also does not need to be arranged. In this case, the second cover 20 can also be tightly pressed on the second end of the shell 100 by the action of the first locking member 130.

[0083] Exemplarily, the second locking member 220 is a bolt-nut set, through which the close abutment between the second cover 210 and the shell 100 can be further ensured.

[0084] Exemplarily, the second cover 210 has a third sealing ring 230 on the side facing the first cover 10.

[0085] The third sealing ring 230 extends along the circumference of the second cover 210 and is located between the second locking member 220 and the first locking member 130.

[0086] In the above implementation, the third sealing ring 230 is clamped between the second cover 210 and the shell 100, thereby realizing the sealing between the second cover 210 and the shell 100. Moreover, since the third sealing ring 230 is located between the second locking member 220 and the first locking member 130, no interference will be caused to the installation of the first locking member 130 and the second locking member 220.

[0087] Exemplarily, the third sealing ring 230 is a rubber O-ring.

[0088] The use mode of the strength detection device will be briefly introduced as follows:

[0089] 1. The connecting rod 120 is inserted into the inner cavity of the shell, so that the second end of the connecting rod 120 is located at the second end of the shell 100, the boss 112 of the first cover 110 is inserted into the first end of the shell 100, and the flange plate 111 of the first cover 110 abuts against the first end of the shell 100.

[0090] 2. The second cover 210 is sleeved on the second end of the connecting rod 120, so that the second cover 210 abuts against the second end of the shell 100.

[0091] 3. The first locking member 130 is connected to the connecting rod 120, so that the first locking member 130 is tightly pressed on the second cover 210, thereby clamping the shell 100 between the first cover 110 and the second cover 210, and completing the positioning and installation of the first cover 110 and the second cover 210 on the shell 100.

[0092] 4. Each second locking member 220 is installed, thereby further ensuring the assembly stability between the second cover 210 and the shell 100.

[0093] 5. The water pipe is inserted into the water inlet hole 141, so that the locking flange on the water pipe and the locking groove 143 in the water inlet hole 141 are clamped with each other.

[0094] 6. The inner cavity of the shell is pressurized by injecting water through the water pipe, and whether there is water leakage is observed, so as to detect the strength of the inner cavity of the shell.

[0095] In the process of detection, the intensity detection device provided by the embodiment of the present disclosure can connect the first cover 10 and the second cover 20 together through the connecting rod 120, so as to realize the position synchronization between the two, without the need to adjust the positions of the two respectively, effectively improving the installation convenience and detection efficiency. Moreover, the fixation of the first cover 10 and the second cover 20 on the shell 100 can be realized through the first locking member 130, without the need to install multiple long rod studs as mentioned in the related art, thereby further improving the installation convenience and detection efficiency.

[0096] Unless otherwise defined, technical terms or scientific terms used herein should be interpreted as is normally used by one of ordinary skill in the art to which this disclosure pertains. The use of "first", "second", "third", and like terms in the specification and claims of this patent application do not denote any order, quantity, or importance, but instead are used to distinguish different components. Similarly, the use of "one" or "a" or "an" does not denote a quantity of one, but instead denotes the existence of at least one. The use of "including", "containing", and like terms is meant to encompass the elements listed thereafter and equivalents thereof as well as additional elements not recited. The use of "connected" or "coupled" or like terms is not meant to be limited to a direct or physical connection but can include an electrical connection, whether direct or indirect.

[0097] The above is not intended to limit the present disclosure in any form, although the present disclosure has been disclosed as above through embodiments, however, it is not intended to limit the present disclosure, any person skilled in the art, without departing from the technical solution of the present disclosure, can make some changes or modifications to the equivalent embodiments of the above disclosed technical content, as long as it does not deviate from the technical solution of the present disclosure, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present disclosure, still belongs to the scope of the technical solution of the present disclosure.

Claims

1. A strength detection device for a housing inner cavity, characterized by, The first cover (10) and the second cover (20) are connected by a connecting rod (120). The first cover (10) comprises a first cover body (110), the connecting rod (120) and a first locking member (130), the first cover body (110) is connected with the first end of the connecting rod (120), the first cover body (110) has a water inlet channel (140) therein, the first end of the water inlet channel (140) is located on the side of the first cover body (110) facing away from the connecting rod (120), the connecting rod (120) has a plurality of water outlet channels (150) therein, each of the water outlet channels (150) is connected with the second end of the water inlet channel (140), the first ends of the plurality of water outlet channels (150) intersect at the axis of the connecting rod (120), the second ends of the plurality of water outlet channels (150) are arranged in a circumferential direction around the axis of the connecting rod (120), the second end of the connecting rod (120) is inserted into the second cover (20), the first locking member (130) is detachably connected with the connecting rod (120), and the first locking member (130) abuts against the side of the second cover (20) facing away from the first cover body (110), the first end of the water inlet channel (140) is used for water injection, water flows through the water inlet channel (140) and the water outlet channels (150) in sequence, and then flows into the inner cavity of the shell through the second ends of the water outlet channels (150) to pressurize the inner cavity of the shell.

2. The strength detection apparatus according to claim 1, characterized by The first cover body (110) comprises a flange plate (111) and a boss (112). The outer diameter of the boss (112) is smaller than that of the flange plate (111), one end of the boss (112) is connected with one side of the flange plate (111), and the other end of the boss (112) is connected with the first end of the connecting rod (120). The side of the flange plate (111) connected with the boss (112) has a first sealing ring (160) surrounding the boss (112).

3. The strength detection apparatus according to claim 1, characterized by The water inlet channel (140) comprises a water inlet jack (141) and a connecting channel (142). The inner diameter of the water inlet jack (141) is larger than that of the connecting channel (142), the water inlet jack (141) is located on the side of the first cover body (110) facing away from the connecting rod (120), and the connecting channel (142) is connected with the water inlet jack (141) and the water outlet channel (150) respectively.

4. The strength detection apparatus according to claim 3, characterized by The water inlet jack (141) has a locking groove (143) therein. The locking groove (143) is located on the hole wall of the water inlet socket (141), and extends along the circumference of the water inlet socket (141), and is used for accommodating the locking flange of the water pipe.

5. The strength detection apparatus according to claim 1, characterized by The outer side wall of the connecting rod (120) is provided with a second sealing ring (170); The second sealing ring (170) is close to the second end of the connecting rod (120), extends along the circumference of the connecting rod (120), and is clamped between the outer side wall of the connecting rod (120) and the second cover (20).

6. The strength detection apparatus according to claim 1, characterized by The outer side wall of the connecting rod (120) is provided with an external thread, which extends along the axial direction of the connecting rod (120) and is close to the second end of the connecting rod (120); The first locking member (130) is threadedly connected with the external thread.

7. The strength detection apparatus according to claim 1, wherein The second cover (20) comprises a second cover body (210) and a second locking member (220); The second cover body (210) is provided with a plurality of mounting holes (221), and each mounting hole (221) is arranged along the outer edge of the second cover body (210) in sequence and spaced apart in the circumferential direction. The second locking member (220) corresponds to the mounting hole (221) one by one, and is inserted into the corresponding mounting hole (221).

8. The strength detection apparatus according to claim 7, characterized by One side of the second cover body (210) facing the first cover (10) is provided with a third sealing ring (230); The third sealing ring (230) extends along the circumference of the second cover body (210) and is located between the second locking member (220) and the first locking member (130).

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