Photovoltaic cable conduit moisture-proof sealing joint

Abstract

This utility model discloses a moisture-proof sealing joint for photovoltaic cable conduits, including a first joint, a second joint, and a sealing sleeve. One end of the first joint is connected to a first conduit, and the other end of the first joint is provided with a sleeve, and the outer wall of the sleeve is provided with two slots. One end of the second joint is connected to a second conduit, and the other end of the second joint is provided with an insert. This utility model, with its sleeve, slots, insert, and insert plates, allows for quick connection and temporary fastening when connecting the first and second joints. The insert is inserted into the sleeve, and the two insert plates are simultaneously inserted into the two slots, allowing the two locking blocks to engage with the two slots, thus improving installation efficiency.

Description

Technical Field

[0001] This utility model specifically relates to the technical field of photovoltaic cable conduit, and more specifically to a moisture-proof and sealing joint for photovoltaic cable conduit. Background Technology

[0002] Photovoltaic cables are special cables designed specifically for solar photovoltaic power generation systems. They are used to connect solar panels, inverters, combiner boxes, and other equipment to achieve safe and efficient power transmission. Photovoltaic cable conduits are important components used to protect photovoltaic cables, effectively preventing them from mechanical damage, ultraviolet radiation, chemical corrosion, etc., ensuring the safe and stable operation of the photovoltaic system. When connecting photovoltaic cable conduits, sealing joints are required.

[0003] Currently used photovoltaic cable sealing joints typically employ a spiral connection for fastening, with a sealing ring placed at the joint to improve the sealing effect. However, as the usage time increases, the sealing ring, being relatively small, is prone to aging and cracking, thus affecting the sealing effect and requiring frequent inspection and replacement, which is inconvenient during use. Utility Model Content

[0004] The purpose of this utility model is to provide a moisture-proof sealing joint for photovoltaic cable conduits, in order to solve the problem mentioned in the background art that the internal sealing ring of the currently used photovoltaic cable sealing joints is small in volume, is prone to aging and cracking, thus affecting the sealing effect, and requires frequent inspection and replacement, which is inconvenient in use.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A moisture-proof sealing joint for photovoltaic cable conduits includes a first joint, a second joint, and a sealing sleeve. One end of the first joint is connected to a first conduit, and the other end of the first joint is provided with a sleeve, the outer wall of which has two slots. One end of the second joint is connected to a second conduit, and the other end of the second joint is provided with an insertion tube. The insertion tube has a boss in the middle, and two insertion plates are provided on the boss. The insertion tube is connected to the sleeve, and the end of the sleeve is tightly attached to the boss. The sealing sleeve is located inside the fastening sleeve and wraps around the outside of the sleeve and the boss. One end of the fastening sleeve is threaded to the outer wall of the first joint.

[0007] As a further embodiment of this utility model: the inner wall of the sleeve has the same diameter as the outer wall of the insertion tube, and the sleeve and the insertion tube are connected by a sliding connection, while the inside of the insertion tube and the sleeve are connected.

[0008] As a further embodiment of this utility model: the two slots are symmetrically distributed about the axis of the sleeve, and a slot is provided on the inner wall of each slot.

[0009] As a further embodiment of this utility model: the two insert plates are symmetrically distributed about the axis of the boss, and each insert plate is slidably connected to a slot; each insert plate has a locking block on its inner wall, and each locking block is engaged with a slot.

[0010] As a further embodiment of this utility model: the end of the sealing sleeve near the second conduit is rotatably connected to the insertion tube, and the initial inner diameter of the end of the sealing sleeve near the second conduit is smaller than the maximum outer diameter of the boss; the inner wall of the sealing sleeve is provided with two pressure strips, and the two pressure strips are symmetrically distributed about the axis of the sealing sleeve.

[0011] As a further embodiment of this utility model: the inner diameter of the end of the fastening sleeve near the second conduit is the same as the maximum outer diameter of the boss, and the inner diameter of the fastening sleeve decreases from the end near the second conduit to the other end.

[0012] As a further embodiment of this utility model: a pressure ring is provided on the inner wall of the fastening sleeve near the end of the second conduit, and several pressure rings are distributed at equal intervals.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model is provided with a sleeve, a slot, a tube, and a plate. When connecting the first connector and the second connector, the tube is inserted into the sleeve, and the two plates are inserted into the two slots respectively, so that the two locking blocks engage with the two slots respectively, which can quickly complete the docking and temporarily tighten it, thus improving the installation efficiency.

[0015] 2. This utility model is provided with a sealing sleeve and a fastening sleeve. When the fastening sleeve is rotated to connect with the thread on the first connector, the sealing sleeve will be pressed and wrapped around the outer wall of the sleeve and the boss, thus completely covering the connection between the sleeve and the insertion tube. Compared with the small-volume sealing ring, the sealing sleeve with a larger surface area can provide a better sealing effect and a longer service life, which can effectively reduce the replacement frequency.

[0016] 3. This utility model is equipped with pressure strips and pressure rings. When tightening, the two pressure strips on the sealing rubber sleeve of the fastening sleeve press the two insert plates respectively, ensuring that the insert plates will not deform and cause the locking block to disengage from the slot, thereby ensuring that the sleeve will not detach from the insert tube, providing an additional tightening effect. Attached Figure Description

[0017] Figure 1This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the insertion tube in this utility model.

[0019] Figure 3 This is a three-dimensional structural diagram of the first connector in this utility model.

[0020] Figure 4 This is an exploded three-dimensional structural diagram of the present invention.

[0021] Figure 5 This is a utility model Figure 4 Another perspective view.

[0022] Figure 6 This is a utility model Figure 5 Enlarged view of point A in the image.

[0023] In the diagram: 1-First conduit, 2-First connector, 3-Sleeve, 4-Slot, 5-Card slot, 6-Second conduit, 7-Second connector, 8-Insertion tube, 9-Insertion plate, 10-Boss, 11-Sealing sleeve, 12-Pressure strip, 13-Fastening sleeve, 14-Pressure ring, 15-Card block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 In this embodiment of the present invention, a moisture-proof sealing joint for photovoltaic cable conduits includes a first joint 2, a second joint 7, and a sealing sleeve 11. One end of the first joint 2 is connected to a first conduit 1, and the other end of the first joint 2 is provided with a sleeve 3, and the outer wall of the sleeve 3 is provided with two slots 4. One end of the second joint 7 is connected to a second conduit 6, and the other end of the second joint 7 is provided with an insertion tube 8. The middle part of the insertion tube 8 is provided with a boss 10, and the boss 10 is provided with two insertion plates 9. The insertion tube 8 is connected to the sleeve 3, and the end of the sleeve 3 is tightly attached to the boss 10. The sealing sleeve 11 is located inside a fastening sleeve 13, and the sealing sleeve 11 wraps around the outside of the sleeve 3 and the boss 10. One end of the fastening sleeve 13 is threadedly connected to the outer wall of the first joint 2.

[0026] More specifically, the outer diameter of the sleeve 3 decreases from one end closer to the first conduit 1 to the other end.

[0027] As a further explanation of this embodiment, the minimum outer diameter of the sleeve 3 is the same as the maximum outer diameter of the boss 10.

[0028] In this embodiment, the inner wall of the sleeve 3 has the same diameter as the outer wall of the insertion tube 8, and the sleeve 3 and the insertion tube 8 are connected by a sliding connection, while the insertion tube 8 and the inside of the sleeve 3 are connected.

[0029] More specifically, the first conduit 1, the first connector 2, and the sleeve 3 are internally interconnected.

[0030] As a further illustration of this embodiment, the second conduit 6, the second connector 7, and the insertion tube 8 are internally interconnected.

[0031] In this embodiment, the two slots 4 are symmetrically distributed about the axis of the sleeve 3, and a slot 5 is provided on the inner wall of each slot 4.

[0032] To be more specific, the centerline of sleeve 3 and the centerline of first connector 2 are on the same straight line.

[0033] As a further explanation of this embodiment, the centerline of the sleeve 3 and the centerline of the insertion tube 8 are on the same straight line.

[0034] In this embodiment, the two insert plates 9 are symmetrically distributed about the axis of the boss 10, and each insert plate 9 is slidably connected to a slot 4; each insert plate 9 has a locking block 15 on its inner wall, and each locking block 15 is engaged with a slot 5.

[0035] To be more specific, after the card block 15 engages with the card slot 5, it can prevent the insert plate 9 from disengaging from the slot 4.

[0036] As a further illustration of this embodiment, both ends of the card block 15 are chamfered.

[0037] In this embodiment, the end of the sealing sleeve 11 near the second conduit 6 is rotatably connected to the insertion tube 8, and the initial inner diameter of the end of the sealing sleeve 11 near the second conduit 6 is smaller than the maximum outer diameter of the boss 10; the inner wall of the sealing sleeve 11 is provided with two pressure strips 12, and the two pressure strips 12 are symmetrically distributed about the axis of the sealing sleeve 11.

[0038] More specifically, before docking, the fastening sleeve 13 needs to be fitted onto the insertion tube 8, and then the end of the sealing sleeve 11 with the smaller inner diameter needs to be stretched and fitted onto the boss 10.

[0039] As a further explanation of this embodiment, the two pressure strips 12 are respectively distributed corresponding to the two insert plates 9.

[0040] In this embodiment, the inner diameter of the end of the fastening sleeve 13 near the second conduit 6 is the same as the maximum outer diameter of the boss 10, and the inner diameter of the fastening sleeve 13 decreases from the end near the second conduit 6 to the other end; a pressure ring 14 is provided on the inner wall of the end of the fastening sleeve 13 near the second conduit 6, and several pressure rings 14 are distributed at equal intervals.

[0041] More specifically, the inner wall of the fastening sleeve 13 near the first connector 2 is provided with internal threads.

[0042] As a further explanation of this embodiment, the sealing sleeve 11 is pressed by the pressure ring 14, so that the sealing sleeve 11 is pressed tightly and wrapped around the outer wall of the sleeve 3 and the boss 10.

[0043] The working principle of this utility model is as follows: When in use, first connect the sleeve 3 with the insertion tube 8, so that the two insertion plates 9 are respectively inserted into the two slots 4, and ensure that the two locking blocks 15 are respectively engaged with the two locking grooves 5. Then pull the sealing sleeve 11 so that the sealing sleeve 11 wraps around the outside of the sleeve 3 and the boss 10, while ensuring that the two pressure strips 12 are respectively pressed on the two insertion plates 9. Finally, rotate the fastening sleeve 13 so that the end of the fastening sleeve 13 is threadedly connected to the outer wall of the first connector 2, until the fastening sleeve 13 is tightened, so that the pressure ring 14 presses the sealing sleeve 11.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A moisture resistant sealed joint for a photovoltaic cable conduit, characterized by: The device includes a first connector (2), a second connector (7), and a sealing sleeve (11). One end of the first connector (2) is connected to a first conduit (1), and the other end of the first connector (2) is provided with a sleeve (3). At the same time, the outer wall of the sleeve (3) is provided with two slots (4). One end of the second connector (7) is connected to a second conduit (6), and the other end of the second connector (7) is provided with an insertion tube (8). The middle part of the insertion tube (8) is provided with a boss (10), and the boss (10) is provided with two insert plates (9). The insertion tube (8) is connected to the sleeve (3), and the end of the sleeve (3) is close to the boss (10). The sealing sleeve (11) is located inside the fastening sleeve (13), and the sealing sleeve (11) wraps around the outside of the sleeve (3) and the boss (10). One end of the fastening sleeve (13) is threaded to the outer wall of the first connector (2).

2. A moisture resistant sealed joint for photovoltaic cable conduit according to claim 1, characterized in that: The inner wall of the sleeve (3) has the same diameter as the outer wall of the insertion tube (8), and the sleeve (3) and the insertion tube (8) are connected by a sliding connection. At the same time, the insertion tube (8) and the inside of the sleeve (3) are connected.

3. A moisture resistant sealed joint for photovoltaic cable conduit according to claim 1, characterized in that: The two slots (4) are symmetrically distributed about the axis of the sleeve (3), and each slot (4) has a slot (5) on its inner wall.

4. A moisture resistant sealed joint for photovoltaic cable conduit according to claim 1, characterized in that: The two insert plates (9) are symmetrically distributed about the axis of the boss (10), and each insert plate (9) is slidably connected to a slot (4); each insert plate (9) has a locking block (15) on its inner wall, and each locking block (15) is engaged with a slot (5).

5. A moisture-proof sealing joint for photovoltaic cable conduits according to claim 1, characterized in that: The sealing sleeve (11) is rotatably connected to the insertion tube (8) at one end near the second conduit (6), and the initial inner diameter of the sealing sleeve (11) near the second conduit (6) is smaller than the maximum outer diameter of the boss (10); the inner wall of the sealing sleeve (11) is provided with two pressure strips (12), and the two pressure strips (12) are symmetrically distributed about the axis of the sealing sleeve (11).

6. A moisture resistant sealed joint for photovoltaic cable conduit according to claim 1, characterized in that: The inner diameter of the fastening sleeve (13) near the second conduit (6) is the same as the maximum outer diameter of the boss (10), and the inner diameter of the fastening sleeve (13) decreases from the end near the second conduit (6) to the other end. The inner wall of the fastening sleeve (13) near the second conduit (6) is provided with a pressure ring (14), and the pressure rings (14) are distributed at equal intervals.

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