Cable waterproof sealing device

Abstract

The utility model relates to sealing device technical field provides a kind of cable waterproof sealing device, including junction box, electrical connection and sealant, and junction box is provided with receiving space and with the first wire hole and the second wire hole of receiving space intercommunication, first cable is worn in the first wire hole, and second cable is worn in the second wire hole;Electrical connection is received in receiving space, and the wiring end of first cable is electrically connected with the wiring end of second cable by electrical connection;Sealant is filled in receiving space according to the mode of at least covering electrical connection, to insulate the protective sleeve of first cable with the protective sleeve of second cable.By electrical connection, the electrical connection of the wiring end of first cable with the wiring end of second cable can be realized;The sealant in receiving space can insulate water, gas between the protective sleeve of first cable and the protective sleeve of second cable, avoid water, gas flow between the protective sleeve of first cable and the protective sleeve of second cable, and further guarantee the waterproof sealing performance of whole cable.

Description

Technical Field

[0001] This utility model relates to the field of sealing device technology, and in particular to a waterproof sealing device for cables. Background Technology

[0002] Cables are wire products that can transmit electrical energy, information, and realize electromagnetic energy conversion. They mainly consist of cable cores and their respective covering layers, overall protective layers, and outer sheaths. Cables are widely used in different environments.

[0003] In actual construction, it is often necessary to connect two cables into a continuous line. These connection points are called cable joints. Currently, the waterproof performance of cable joints is not good, which makes the cable joints prone to water seepage and damage. Therefore, there is an urgent need for a waterproof sealing structure for cables to solve this problem. Utility Model Content

[0004] This invention provides a waterproof sealing device for cables to solve the problem of poor waterproof performance of existing cable connectors.

[0005] This utility model provides a waterproof sealing device for cables, comprising: The junction box is provided with a storage space and a first wire through hole and a second wire through hole communicating with the storage space. The first cable passes through the first wire through hole and the second cable passes through the second wire through hole. An electrical connector is housed in the storage space, and the terminal of the first cable is electrically connected to the terminal of the second cable through the electrical connector. Sealant is applied to the storage space in such a way that it at least covers the electrical connector, thereby isolating the protective sleeve of the first cable from the protective sleeve of the second cable.

[0006] Optionally, the electrical connector includes: A first conductive sleeve and a second conductive sleeve are arranged side by side. The terminal of the first cable passes through the first conductive sleeve, and the terminal of the second cable passes through the second conductive sleeve.

[0007] Optionally, some of the terminals of the first cable may be exposed outside the first conductive sleeve; and / or, Some of the terminals of the second cable are exposed outside the second conductive sleeve.

[0008] Optionally, the inner wall of the storage space has a protruding wire guide seat at the corresponding wire guide hole. The wire guide seat is provided with a wire guide channel. The storage space is connected to the corresponding wire guide hole through the wire guide channel. One side of the wire guide seat is open. The cable waterproof sealing device also includes a wire pressing seat, which covers the opening of the cable pass-through seat. The wire pressing seat is provided with a wire pressing block, and the wire pressing block is provided with a wire pressing groove. The wire pressing groove cooperates with the cable pass-through channel to allow the cable to pass through.

[0009] Optionally, the wire pressing base includes a top plate and a side plate connected to the top plate, the wire pressing block is disposed on the top plate, the top plate covers the opening of the wire passing base, and the side plate is sandwiched between the inner wall of the storage space and the outer side of the wire passing base.

[0010] Optionally, one of the inner wall of the storage space and the side of the side panel facing away from the cable tray is provided with a first buckle, and the other is provided with a first slot adapted to the first buckle. The cable tray and the junction box are connected by the first buckle and the first slot.

[0011] Optionally, there may be multiple first buckles arranged sequentially in a direction perpendicular to the length of the junction box, and multiple first slots, with each of the multiple first buckles corresponding to one of the multiple first slots.

[0012] Optionally, the junction box includes a cover and a body. The body is open and has a first wire passage. The wire pass holder is correspondingly provided with the first wire passage. The cover is placed over the open part of the body and abuts against the top plate. The cover has a crimping part and a second wire passage. The first wire passage and the second wire passage cooperate to form a corresponding wire hole.

[0013] Optionally, the cover is provided with a second buckle, and the side plate facing the wire guide is provided with a second slot that matches the second buckle. The cover and the wire guide are connected by the second buckle and the second slot.

[0014] Optionally, a protrusion is provided on the inner wall of the cable passage. The protrusion is arc-shaped and abuts against the wire pressing block in the length direction of the junction box. The wire pressing groove cooperates with the protrusion to allow the cable to pass through.

[0015] The cable waterproof sealing device provided by this utility model can realize the electrical connection between the first cable terminal and the second cable terminal through the electrical connector; at the same time, by injecting sealant into the storage space in a manner that at least covers the electrical connector, the sealant can isolate water and air between the protective sleeves of the first cable and the second cable, preventing water and air from flowing between the protective sleeves of the first cable and the second cable, thereby ensuring the waterproof sealing performance of the entire cable. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of the cable waterproof sealing device provided in an embodiment of this utility model.

[0018] Figure 2 This is an exploded view of the cable waterproof sealing device provided in this embodiment of the utility model.

[0019] Figure 3 This is one of the structural schematic diagrams of the first cable and the second cable assembly provided in the embodiments of this utility model.

[0020] Figure 4 This is the second structural schematic diagram of the first and second cable assembly provided in this embodiment of the utility model.

[0021] Figure 5 This is the third structural schematic diagram of the first and second cable assembly provided in this embodiment of the utility model.

[0022] Figure 6 This is the fourth structural schematic diagram of the first and second cable assembly provided in this embodiment of the utility model.

[0023] Figure 7 This is one of the cross-sectional views of the cable waterproof sealing device provided in this utility model embodiment.

[0024] Figure 8 This is a second cross-sectional view of the cable waterproof sealing device provided in this embodiment of the utility model.

[0025] Figure 9 This is the third cross-sectional view of the cable waterproof sealing device provided in this embodiment of the utility model.

[0026] Figure 10 This is the fourth cross-sectional view of the cable waterproof sealing device provided in this embodiment of the utility model.

[0027] Figure label: 1. First cable; 11. Cable core; 12. Protective sleeve; 2. Second cable; 3. Junction box; 31. Box body; 311. Cable guide; 3111. Cable passage; 3112. Protrusion; 312. First buckle; 313. First cable passage opening; 32. Box cover; 321. Crimping part; 3211. Second cable passage opening; 322. Second buckle; 4. Electrical connector; 41. First conductive sleeve; 42. Second conductive sleeve; 5. Sealant; 6. Crimping base; 61. Top plate; 62. Side plate; 63. Crimping block; 631. Crimping groove; 64. First slot; 65. Second slot. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this embodiment clearer, the technical solutions of this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this embodiment, not all embodiments. Based on the embodiments of this embodiment, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this embodiment.

[0029] The waterproof sealing device for cables in this embodiment is used to connect a first cable 1 and a second cable 2 to achieve waterproof sealing of the entire cable. The first cable 1 and the second cable 2 have roughly the same structure. Each of the first cable 1 and the second cable 2 includes a cable core 11 and a protective sleeve 12 covering the outer surface of the cable core 11. The terminals of the cable core 11 are exposed outside the protective sleeve 12.

[0030] like Figure 1 , Figure 2 and Figure 10 As shown, the cable waterproof sealing device of this utility model embodiment includes: a junction box 3, an electrical connector 4, and sealant 5. The junction box 3 is provided with a storage space and a first wire through hole and a second wire through hole communicating with the storage space; a first cable 1 passes through the first wire through hole, and a second cable 2 passes through the second wire through hole; the electrical connector 4 is stored in the storage space, and the terminal of the first cable 1 is electrically connected to the terminal of the second cable 2 through the electrical connector 4; the sealant 5 is filled in the storage space in such a way that it at least covers the electrical connector 4, so as to isolate the protective sleeve 12 of the first cable 1 from the protective sleeve 12 of the second cable 2.

[0031] It should be noted that the first and second cable guide holes can be symmetrically distributed on both sides of the junction box 3. During implementation, first strip the protective sleeves 12 from the ends of the first cable 1 and the second cable 2, exposing their respective cable cores 11 as terminals. Before connecting the terminals of the two cables via the electrical connector 4, both terminals need to be tin-plated. Then, connect the tin-plated portions of the two terminals via the electrical connector 4. It should be noted that some portions of the terminals of the first cable 1 and the second cable 2 may not have been tin-plated. The sealant 5 can be a two-component polyurethane sealant.

[0032] In practical applications, the electrical connector 4 enables electrical connection between the terminals of the first cable 1 and the second cable 2. Simultaneously, by injecting sealant 5 into the storage space in a manner that at least covers the electrical connector 4, the sealant 5 isolates water and air between the protective sleeves 12 of the first cable 1 and the second cable 2, preventing water and air from flowing between the protective sleeves 12 of the first cable 1 and the second cable 2, thereby ensuring the waterproof and sealing performance of the entire cable.

[0033] In optional embodiments, such as Figure 2 and Figure 3 As shown, the electrical connector 4 includes a first conductive sleeve 41 and a second conductive sleeve 42, which are arranged side by side. The terminal of the first cable 1 passes through the first conductive sleeve 41, and the terminal of the second cable 2 passes through the second conductive sleeve 42.

[0034] Specifically, the first conductive sleeve 41 and the second conductive sleeve 42 can be made of copper tubing, with their inner surfaces tin-plated to reduce contact resistance. It should be noted that the first conductive sleeve 41 and the second conductive sleeve 42 are arranged side-by-side. This arrangement allows the terminals of the first cable 1 and the second cable 2 to be staggered, thus achieving spatial isolation between the protective sleeves 12 of the first cable 1 and the second cable 2. This facilitates the sealant 5 to fully fill the space between the two protective sleeves 12 and form an effective insulating layer, significantly improving the overall waterproof performance.

[0035] As an example, some of the terminals of the first cable 1 are exposed outside the first conductive sleeve 41; some of the terminals of the second cable 2 are exposed outside the second conductive sleeve 42.

[0036] For example, the length of the connector of the first cable 1 is 10mm, of which 6mm is inserted into the first conductive sleeve 41, and the remaining 4mm is exposed outside the first conductive sleeve 41. It can be understood that the partial exposure of the connector to the corresponding conductive sleeve can provide more sufficient filling space for the sealant 5, so that a continuous, dense and effective isolation layer is formed between the two protective sleeves 12.

[0037] In optional embodiments, such as Figure 2and Figure 5 As shown, the inner wall of the storage space has a cable guide seat 311 protruding at the corresponding cable passage hole. The cable guide seat 311 is provided with a cable passage 3111. The storage space is connected to the corresponding cable passage hole through the cable passage 3111. One side of the cable guide seat 311 is open. The cable waterproof sealing device also includes a cable clamping seat 6, which covers the open part of the cable guide seat 311. The cable clamping seat 6 is provided with a cable clamping block 63, which is provided with a cable clamping groove 631. The cable clamping groove 631 cooperates with the cable passage 3111 to allow the cable to pass through.

[0038] Specifically, the inner wall of the storage space has a cable guide 311 integrally formed at the corresponding cable hole, and the cable guide 311 has a "U" shaped structure. The cable guide 311 has a through cable channel 3111 inside, which is coaxially connected to the cable hole. At the same time, the cable clamping seat 6 is fixed to the open part of the cable guide 311. The inner side of the cable clamping seat 6 has a cable clamping block 63 integrally formed, and the bottom of the cable clamping block 63 has a semi-circular cable clamping groove 631.

[0039] Understandably, the cable guide 311 and the cable clamp 6 work together to effectively fix the cable that extends into the storage space, so as to ensure that the axial displacement of the cable is within a controllable range.

[0040] In optional embodiments, such as Figure 2 and Figure 5 As shown, the wire pressing base 6 includes a top plate 61 and a side plate 62 connected to the top plate 61. The wire pressing block 63 is disposed on the top plate 61. The top plate 61 covers the opening of the wire guide base 311. The side plate 62 is sandwiched between the inner wall of the storage space and the outer side of the wire guide base 311.

[0041] It should be noted that the wire clamping base 6 has an overall U-shaped structure, including a top plate 61 and two side plates 62 connected to the top plate 61. The wire clamping block 63 can be integrally formed with the top plate 61, and a gap is left between the wire clamping block 63 and the side plates 62 to avoid interference between the wire clamping block 63 and the wire guide 311, facilitating the assembly of the wire clamping base 6 onto the wire guide 311. The top plate 61 covers the opening of the wire guide 311, and the two side plates 62 are sandwiched between the inner wall of the storage space and the outer surface of the wire guide 311, thereby achieving a stable connection between the wire clamping base 6 and the junction box 3.

[0042] In optional embodiments, such as Figure 2 , Figure 5 and Figure 7 As shown, one of the inner wall and side panel 62 of the storage space away from the cable tray 311 is provided with a first buckle 312, and the other is provided with a first slot 64 adapted to the first buckle 312. The cable tray 6 and the junction box 3 are connected by the first buckle 312 and the first slot 64.

[0043] It should be noted that the snap-fit ​​assembly includes a first snap-fit ​​312 and a first slot 64 that are mutually adapted to each other, and are respectively set in either of the following two sets of positions: The first buckle 312 is disposed on the inner wall of the storage space, and the first slot 64 is disposed on the side of the side plate 62 away from the cable guide 311 (i.e., the outer side of the side plate 62); the first buckle 312 is disposed on the side of the side plate 62 away from the cable guide 311 (i.e., the outer side of the side plate 62), and the first slot 64 is disposed on the inner wall of the storage space.

[0044] In practical applications, when the top plate 61 of the wire clamp 6 covers the opening of the wire guide 311, and the side plate 62 is sandwiched between the inner wall of the storage space and the outer side of the wire guide 311, the first buckle 312 and the first slot 64 automatically align and engage. By pressing the wire clamp 6 or applying slight external force, the first buckle 312 is inserted into the first slot 64, thus fixing the wire clamp 6 to the junction box 3. In this way, the buckle connection enables quick assembly and disassembly of the wire clamp 6 and the junction box 3, while ensuring that their relative positions are fixed, preventing the wire clamp 6 from falling off due to vibration or external force, and improving the reliability of cable fixing.

[0045] As an example, there are multiple first buckles 312, which are arranged sequentially in a direction perpendicular to the length of the junction box 3. There are also multiple first slots 64, with each of the multiple first buckles 312 and the multiple first slots 64 corresponding to one another.

[0046] For example, the inner wall of the storage space is provided with multiple first buckles 312. During installation, the top plate 61 of the wire clamping base 6 is aligned with the opening of the wire guide base 311 and closed, and the side plate 62 is inserted into the gap between the inner wall of the storage space and the outer side of the wire guide base 311; at the same time, multiple first slots 64 on the outer side of the side plate 62 are aligned with multiple first buckles 312 on the inner wall of the storage space in sequence, and by pressing the wire clamping base 6 or gently pushing it, each first buckle 312 is inserted into the corresponding first slot 64 one by one.

[0047] Multiple clips are distributed along the length of the junction box 3, forming multi-directional limiting constraints to prevent the wire clamp 6 from loosening locally when subjected to force in a single direction (such as the possible displacement or detachment that may occur when relying on only one side of the clip). The multiple clips share the weight and tension of the wire clamp 6 and the cable, reducing the load pressure of a single clip and extending its service life. The array arrangement of the clips also serves as an assembly guide, helping operators to quickly locate the correct installation position of the wire clamp 6 and improving assembly efficiency.

[0048] In optional embodiments, such as Figure 1 , Figure 2 and Figure 6As shown, the junction box 3 includes a cover 32 and a body 31. The body 31 is open and has a first wire passage 313. A wire pass holder 311 is correspondingly provided with the first wire passage 313. The cover 32 is placed over the open part of the body 31 and abuts against the top plate 61. The cover 32 has a crimping part 321 and a second wire passage 3211. The first wire passage 313 and the second wire passage 3211 cooperate to form corresponding wire passage holes.

[0049] It should be noted that the box body 31 can be a box structure, with its open top end for mounting the box cover 32; the side wall of the box body 31 is provided with a first cable passage 313 (a through hole penetrating the inside and outside of the box body 31) for cables to enter / exit the internal space of the junction box 3. The box cover 32 is used to close the open end of the box body 31 and is detachably connected to the box body 31; the side of the box cover 32 facing the inside of the box body 31 (i.e., the side near the wire clamp 6) is provided with a crimping part 321.

[0050] In practical applications, the crimping part 321 of the cover 32 is provided with a second wire passage 3211 (a through hole penetrating the inner and outer sides of the crimping part 321), which corresponds to the first wire passage 313. When the cover 32 is closed, the crimping part 321 extends into the first wire passage 313, and the first wire passage 313 and the second wire passage 3211 combine to form a complete wire passage hole. The cable passes through the wire passage hole and the internal channel of the wire holder 311 in sequence, finally realizing the through-flow from the outside to the inside of the junction box 3.

[0051] Understandably, the crimping part 321 of the cover 32 wraps around or limits the cable through the edge of the second cable passage 3211 (e.g., the second cable passage 3211 can be an arc-shaped groove to fit the outer diameter of the cable), and works together with the crimping block 63 of the crimping base 6 to further fix the position of the cable and prevent it from shaking; at the same time, the abutment between the cover 32 and the top plate 61, that is, the top plate 61 is flush with the open end of the box body 31, can ensure the sealing of the inside of the junction box 3.

[0052] In optional embodiments, such as Figure 1 , Figure 2 , Figure 6 and Figure 8 As shown, the cover 32 is provided with a second buckle 322, and the side plate 62 facing the wire guide 311 is provided with a second slot 65 that matches the second buckle 322. The cover 32 and the wire guide 6 are connected by the second buckle 322 and the second slot 65.

[0053] It should be noted that when the lid 32 is closed on the opening of the box body 31, the second buckle 322 on the inner side of the lid 32 is aligned with the second slot 65 on the inner side of the side plate 62 of the wire pressing base 6; by pressing the lid 32, the second buckle 322 is inserted into the second slot 65, thereby achieving the buckle fixation between the lid 32 and the wire pressing base 6.

[0054] In optional embodiments, such as Figure 2 and Figure 9 As shown, a protrusion 3112 is provided on the inner wall of the cable passage 3111. The protrusion 3112 is arc-shaped. The protrusion 3112 abuts against the wire pressing block 63 in the length direction of the junction box 3, and the wire pressing groove 631 cooperates with the protrusion 3112 to allow the cable to pass through.

[0055] It should be noted that the clamping block 63 abuts against the protrusion 3112 along the length of the junction box 3, forming a "clamping-supporting" composite limiting mechanism for the cable. The clamping block 63 presses the cable downward, while the protrusion 3112 supports the cable from below. Together, they restrict the cable's displacement along its length (travel direction), such as preventing excessive slippage when the cable is pulled. The protrusion 3112 can be formed by multiple protrusions or a single rib; no specific limitation is made here.

[0056] The following describes the assembly process of the cable waterproof sealing device.

[0057] Step 1: As Figure 3 As shown, firstly, the protective sleeves 12 of the ends of the first cable 1 and the second cable 2 are stripped to expose the respective cable cores 11 as terminals, and the two terminals are then tin-plated. Subsequently, the terminal of the first cable 1 is inserted into the first conductive sleeve 41, and the terminal of the second cable 2 is inserted into the second conductive sleeve 42. Second step: As shown... Figure 4 As shown, place the first cable 1 and the second cable 2 inside the housing 31. Third step: As... Figure 5 As shown, the wire clamping base 6 is fastened to the housing 31 so that the wire clamping base 6 covers the wire guide base 311. Fourth step: As shown... Figure 6 As shown, the interior of box 31 is potted with adhesive. Step 5: As... Figure 1 As shown, the lid 32 is placed on the box body 31 to complete the final assembly.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this embodiment, and not to limit them; although this embodiment has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this embodiment.

Claims

1. A cable waterproof sealing device for connecting a first cable (1) and a second cable (2), each of the first cable (1) and the second cable (2) comprising a cable core (11) and a protective sleeve (12) covering the outer surface of the cable core (11), wherein the terminal of the cable core (11) is exposed outside the protective sleeve (12), characterized in that, The cable waterproof sealing device includes: The junction box (3) is provided with a storage space and a first wire hole and a second wire hole connected to the storage space. The first cable (1) passes through the first wire hole and the second cable (2) passes through the second wire hole. An electrical connector (4) is housed in the storage space, and the terminal of the first cable (1) is electrically connected to the terminal of the second cable (2) through the electrical connector (4). The sealant (5) is filled into the storage space in such a way that it at least covers the electrical connector (4) to isolate the protective sleeve (12) of the first cable (1) from the protective sleeve (12) of the second cable (2).

2. The cable waterproof sealing device according to claim 1, characterized in that, The electrical connector (4) includes: A first conductive sleeve (41) and a second conductive sleeve (42) are arranged side by side. The terminal of the first cable (1) passes through the first conductive sleeve (41), and the terminal of the second cable (2) passes through the second conductive sleeve (42).

3. The cable waterproof sealing device according to claim 2, characterized in that, Some of the terminals of the first cable (1) are exposed outside the first conductive sleeve (41); and / or, The terminals of a portion of the second cable (2) are exposed outside the second conductive sleeve (42).

4. The cable waterproof sealing device according to any one of claims 1 to 3, characterized in that, The inner wall of the storage space has a wire guide seat (311) protruding at the corresponding wire guide hole. The wire guide seat (311) is provided with a wire guide channel (3111). The storage space is connected to the corresponding wire guide hole through the wire guide channel (3111). One side of the wire guide seat (311) is open. The cable waterproof sealing device also includes a wire pressing seat (6), which covers the opening of the wire pass seat (311). The wire pressing seat (6) is provided with a wire pressing block (63), and the wire pressing block (63) is provided with a wire pressing groove (631). The wire pressing groove (631) cooperates with the wire pass channel (3111) to allow the cable to pass through.

5. The cable waterproof sealing device according to claim 4, characterized in that, The wire pressing base (6) includes a top plate (61) and a side plate (62) connected to the top plate (61). The wire pressing block (63) is disposed on the top plate (61). The top plate (61) covers the opening of the wire guide base (311). The side plate (62) is sandwiched between the inner wall of the storage space and the outer side of the wire guide base (311).

6. The cable waterproof sealing device according to claim 5, characterized in that, The inner wall of the storage space and the side plate (62) on the side away from the cable tray (311) are provided with a first buckle (312), and the other side is provided with a first slot (64) that is adapted to the first buckle (312). The cable tray (6) and the junction box (3) are connected by the first buckle (312) and the first slot (64).

7. The cable waterproof sealing device according to claim 6, characterized in that, There are multiple first buckles (312), and multiple first buckles (312) are arranged sequentially in the length direction perpendicular to the junction box (3). There are multiple first slots (64), and multiple first buckles (312) and multiple first slots (64) correspond one-to-one.

8. The cable waterproof sealing device according to claim 5, characterized in that, The junction box (3) includes a cover (32) and a body (31). The body (31) is open and has a first wire passage (313). The wire pass seat (311) is correspondingly provided with the first wire passage (313). The cover (32) is placed over the open part of the body (31) and abuts against the top plate (61). The cover (32) has a crimping part (321) and a second wire passage (3211). The first wire passage (313) and the second wire passage (3211) cooperate to form a corresponding wire passage hole.

9. The cable waterproof sealing device according to claim 8, characterized in that, The cover (32) is provided with a second buckle (322), and the side plate (62) facing the wire guide (311) is provided with a second slot (65) that is adapted to the second buckle (322). The cover (32) and the wire guide (6) are connected by the second buckle (322) and the second slot (65).

10. The cable waterproof sealing device according to claim 4, characterized in that, The inner wall of the cable passage (3111) is provided with a protrusion (3112), which is arc-shaped. The protrusion (3112) and the wire pressing block (63) abut against each other in the length direction of the junction box (3), and the wire pressing groove (631) cooperates with the protrusion (3112) to allow the cable to pass through.

Images