Cable joint surrounding type enclosure device

Abstract

The utility model discloses a surrounding type enclosure device for a cable joint, which comprises a protective sleeve sleeved outside the cable joint, at least one bending section positioned inside the protective sleeve is symmetrically arranged on two sides of the cable joint, a follow-up ring is fixedly sleeved outside one side of the bending section, and a reset ring is rotatably clamped outside the follow-up ring. The reset ring is arranged in the protective sleeve in a sliding mode, and an axial elastic reset piece is arranged between the reset ring and the end of the protective sleeve. A circumferential rotation elastic reset piece is arranged between the end face of the follow-up ring and the end of the protection sleeve. According to the utility model, 360-degree surrounding protection can be carried out on the cable joint, so that the cable joint is prevented from being influenced by strong light, electromagnetic waves, rainwater and dust in an external environment, and meanwhile, the stress of the cable joint can be buffered and offset when the cable joint is subjected to axial tension and circumferential torsional force; therefore, the stress condition of the cable joint is improved, and the cable joint has better resistance to axial force and circumferential force.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable protection and relates to a cable joint surrounding enclosure device. Background Art

[0002] Segmented cables are connected through cable joints to form a continuous cable line. The cable joints between adjacent cables are relatively fragile locations of the connection structure. In order to ensure the normal operation of the cable line, it is usually necessary to set a protective cover at the cable joint to protect the cable joint.

[0003] Existing cable joint protective covers can seal and shield the cable joints to prevent the cable joints from being directly affected by strong light, electromagnetic waves, rain, and dust in the external environment. However, in the actual use of the cable joints, the cable joints are often subjected to axial tension and circumferential torsional force, which causes stress on the cable joints. The traditional protective covers cannot effectively buffer and offset the axial force and circumferential force on the cable joints, causing the cable joints to loosen or even fall off under the force, thereby affecting the normal operation of the cable line.

[0004] Therefore, the utility model discloses a cable joint surrounding enclosure device to address the defect that the existing cable joint protective sleeve lacks the ability to assist the cable joint in resisting the axial force and the circumferential force. Utility Model Content

[0005] The purpose of the utility model is to provide a cable joint surround enclosure device, which can provide 360-degree surrounding protection for the cable joint to prevent the cable joint from being affected by strong light, electromagnetic waves, rain, and dust in the external environment, and at the same time can buffer and offset the force on the cable joint when the cable joint is subjected to axial tension and circumferential torsional force, thereby improving the stress condition of the cable joint, so that the cable joint has better resistance performance when facing axial force and circumferential force.

[0006] The utility model is realized by the following technical solutions:

[0007] A cable joint surround enclosure device comprises a protective sleeve sleeved on the outside of the cable joint, at least one curved section located inside the protective sleeve is symmetrically arranged on both sides of the cable joint, a follower ring is fixedly sleeved on the outside of one side of the curved section, a reset ring is rotatably clamped on the outer side of the follower ring, the reset ring is slidably arranged inside the protective sleeve, and an axial elastic reset piece is arranged between the reset ring and the end of the protective sleeve; a circumferentially rotating elastic reset piece is arranged between the end face of the follower ring and the end of the protective sleeve.

[0008] When the cable is subjected to axial tension, the curved sections on both sides of the cable connector are straightened and moved along the axial direction of the protective sleeve under the action of the axial tension, thereby driving the follower ring outside the curved section to move along the axial direction of the protective sleeve. Through the rotating clamping structure between the follower ring and the reset ring, the follower ring drives the reset ring to slide axially inside the protective sleeve. During the axial sliding of the reset ring, the axial elastic reset part will be compressed or stretched, and the axial tension on the cable connector will be buffered and offset by the elastic deformation generated by the axial elastic reset part. When the axial tension disappears, the axial elastic reset part returns to its original state and drives the reset ring and the follower ring back to the axial initial position. At this time, the curved sections at both ends of the cable connector return from the straightened state to the bent state.

[0009] The rotating clamping structure between the follower ring and the reset ring ensures that the follower ring can drive the reset ring to move axially while preventing the reset ring from hindering the circumferential rotation of the follower ring. When the cable is subjected to circumferential torsional force, the curved sections on both sides of the cable connector are twisted circumferentially relative to the protective sleeve. At this time, the follower ring is twisted circumferentially along with the curved sections, thereby driving the circumferentially rotating elastic reset member to twist. The circumferential torsional force on both sides of the cable end is buffered and offset by the elastic deformation of the circumferentially rotating elastic reset member. When the circumferential torsional force disappears, the circumferentially rotating elastic reset member returns to its original state and drives the follower ring back to its initial circumferential position.

[0010] In order to better realize the utility model, further, inner bushings are arranged at both ends of the protective sleeve, and an axial elastic reset member is arranged between the end surface of the reset ring and the end surface of the inner bushing.

[0011] In order to better realize the utility model, further, a limiting ring groove is arranged on the end face of the reset ring, an axial elastic reset member is arranged between the limiting ring groove and the end face of the inner sleeve, one end of the axial elastic reset member is connected to the end of the inner sleeve, and the other end of the axial elastic reset member is clamped with the limiting ring groove.

[0012] In order to better implement the utility model, further, the axial elastic reset member includes an axial spring.

[0013] In order to better realize the utility model, further, a torsion sleeve is coaxially arranged on one end of the follower ring close to the inner sleeve, a torsion ring groove is coaxially arranged on one end of the inner sleeve close to the follower ring, a torsion ring is arranged for internal rotation of the torsion ring groove, and a circumferentially rotating elastic reset part is arranged between the outer wall of the torsion ring and the inner wall of the torsion ring groove; the inner wall of the torsion ring and the outer wall of the torsion sleeve are axially slidingly matched and circumferentially limited and clamped at the same time.

[0014] In order to better realize the utility model, further, the circumferential rotation elastic reset member includes a circumferential reset torsion spring arranged between the outer wall of the torsion ring and the inner wall of the torsion ring groove.

[0015] In order to better realize the utility model, further, an axial groove is provided on the inner wall of the protective sleeve, a slider slidingly connected to the axial groove is provided on the outer wall of the reset ring, a matching ring groove is provided on the inner wall of the reset ring, the matching ring groove is connected to the outer side of the follower ring in a circumferential rotational manner, and the matching ring groove is clamped with the outer side of the follower ring in an axial limit manner.

[0016] In order to better realize the utility model, further, an insulating layer is arranged on the outside of the protective sleeve, and an anti-corrosion layer is arranged on the outside of the insulating layer.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0018] The utility model sets a protective sleeve on the outside of the cable connector to prevent the cable connector from being directly affected by strong light, electromagnetic waves, rain and dust in the external environment. At the same time, follower rings are fixedly set on the outside of both sides of the cable connector, and reset rings are clamped on the outside of the follower rings, so that when the cable connector is subjected to an axial force, the reset ring is driven to move axially inside the protective sleeve, thereby driving the axial elastic reset member to undergo axial elastic deformation, and the axial force exerted on the cable connector is buffered and offset by the elastic deformation of the axial elastic reset member; in response to the circumferential torsional force exerted on the cable connector, a circumferentially rotating elastic reset member is provided between the follower ring and the protective sleeve, so that when the cable connector is subjected to a circumferential force, the circumferentially rotating elastic reset member is driven to undergo circumferential elastic deformation, and the circumferential force exerted on the cable connector is buffered and offset by the elastic deformation of the circumferentially rotating elastic reset member, thereby improving the resistance performance of the cable connector to the axial force and the circumferential force. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the cable joint surrounding enclosure device;

[0020] Figure 2 It is an internal cross-sectional view of the cable joint surrounding enclosure;

[0021] Figure 3 This is a schematic diagram of the assembly of the follower ring;

[0022] Figure 4 It is the structural schematic diagram of the follower ring;

[0023] Figure 5 Schematic diagram of the reset ring structure.

[0024] Among them: 1-protective sleeve; 2-follower ring; 3-reset ring; 4-axial elastic reset member; 5-circumferential rotation elastic reset member; 6-inner sleeve; 7-torsion sleeve; 11-axial groove; 31-slider; 32-matching ring groove; 33-limiting ring groove; 41-axial spring; 51-circumferential reset torsion spring; 61-torsion ring groove; 62-torsion ring. DETAILED DESCRIPTION

[0025] The following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the utility model explicitly states otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0028] Terminology explanation section: The terms "install", "connect", "connect", "fixed" and so on in the present utility model should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0029] Embodiment 1:

[0030] A cable joint surrounding enclosure device of this embodiment, such as Figure 1-Figure 3As shown, it includes a protective sleeve 1 sleeved on the outside of the cable connector, at least one bending section located inside the protective sleeve 1 is symmetrically arranged on both sides of the cable connector, a follower ring 2 is fixedly sleeved on the outside of one side of the bending section, a reset ring 3 is rotatably clamped on the outer side of the follower ring 2, the reset ring 3 is slidably arranged inside the protective sleeve 1, and an axial elastic reset member 4 is arranged between the reset ring 3 and the end of the protective sleeve 1; a circumferentially rotating elastic reset member 5 is arranged between the end face of the follower ring 2 and the end of the protective sleeve 1.

[0031] The cable connector is located in the middle of the protective cover 1, and the cables at both ends of the cable connector are bent inside the protective cover 1 to form a curved section. The purpose of setting the curved section is to allow the cable to have margin for axial movement and circumferential rotation when subjected to axial force and circumferential torsional force, and to buffer and offset the axial force on the cable connector through the axial elastic reset member 4, and to buffer and offset the circumferential torsional force on the cable connector through the circumferential rotation elastic reset member 5, thereby ensuring the safety of the cable connector.

[0032] Specifically:

[0033] When the cable is subjected to axial tension, the curved sections on both sides of the cable connector gradually straighten under the action of the axial tension and move axially along the protective sleeve 1. At this time, the follower ring 2 located outside the curved section moves axially synchronously. Since the outer side of the follower ring 2 and the inner side of the reset ring 3 are rotated and clamped, the reset ring 3 can move axially together with the follower ring 2, and the follower ring 2 can also be allowed to rotate circumferentially relative to the reset ring 3. When the reset ring 3 moves axially, the axial elastic reset members 4 at both ends of the protective sleeve 1 are compressed or stretched. For example, when the reset ring 3 moves axially to the left, the axial elastic reset member 4 at the left end is compressed and the axial elastic reset member 4 at the right end is stretched. Through the elastic deformation of the axial elastic reset members 4 at the left and right ends, the axial tension on the cable connector is buffered and offset, which effectively improves the tensile performance of the cable connector and effectively protects the cable connector when it is subjected to axial tension.

[0034] When the cable is subjected to circumferential torsional force, the curved sections on both sides of the cable connector are subjected to circumferential torsional force. Since the outer side of the follower ring 2 and the inner side of the reset ring 3 are rotatably clamped, the follower ring 2 is allowed to rotate circumferentially relative to the reset ring 3. When the follower ring 2 rotates circumferentially, the circumferentially rotating elastic reset member 5 is driven to undergo elastic torsional deformation. The elastic deformation of the circumferentially rotating elastic reset member 5 is used to buffer and offset the circumferential torsional force on the cable connector, effectively improving the anti-torsion performance of the cable connector, and effectively protecting the cable connector when it is subjected to circumferential torsional force.

[0035] The other parts of this embodiment are the same as those of Embodiment 1, and thus will not be described in detail.

[0036] Embodiment 2:

[0037] A cable joint surrounding enclosure device is improved on the basis of embodiment 1, such as Figure 1 , Figure 2 , Figure 5 As shown, inner sleeves 6 are provided at both ends of the protective sleeve 1 , and an axial elastic reset member 4 is provided between the end surface of the reset ring 3 and the end surface of the inner sleeve 6 .

[0038] A through hole for the cable to pass through is provided at the center of the inner sleeve 6, and a seal is provided between the hole wall of the through hole and the outer side surface of the cable to ensure a relatively sealed environment inside the protective sleeve 1. An outer cone is provided at one end of the inner sleeve 6 away from the cable connector, and a tapered hole matching the outer cone is provided at the end of the protective sleeve 1, so as to realize convenient positioning and assembly of the inner sleeve 6 at the end of the protective sleeve 1. When the reset ring 3 moves axially, it squeezes or stretches the axial elastic reset member 4, causing the axial elastic reset member 4 to undergo elastic deformation.

[0039] Furthermore, a limiting ring groove 33 is provided on the end face of the reset ring 3, and an axial elastic reset member 4 is provided between the limiting ring groove 33 and the end face of the inner sleeve 6, one end of the axial elastic reset member 4 is connected to the end of the inner sleeve 6, and the other end of the axial elastic reset member 4 is clamped with the limiting ring groove 33.

[0040] One end of the axial elastic reset piece 4 is embedded and fixed inside the end surface of the inner sleeve 6, and the other end of the axial elastic reset piece 4 extends to the inside of the limiting ring groove 33 and is clamped with the limiting ring groove 33 through a clamping block, ensuring that the reset ring 3 can smoothly compress or stretch the axial elastic reset piece 4 when moving axially.

[0041] Furthermore, the axial elastic reset member 4 includes an axial spring 41 .

[0042] The other parts of this embodiment are the same as those of Embodiment 1, and thus will not be described in detail.

[0043] Embodiment 3:

[0044] A cable joint surrounding enclosure device, improved on the basis of embodiment 1 or 2, such as Figure 1-Figure 4 As shown, a torsion sleeve 7 is coaxially provided at one end of the follower ring 2 close to the inner sleeve 6, a torsion ring groove 61 is coaxially provided at one end of the inner sleeve 6 close to the follower ring 2, a torsion ring 62 is rotatably provided inside the torsion ring groove 61, a circumferentially rotating elastic reset member 5 is provided between the outer wall of the torsion ring 62 and the inner wall of the torsion ring groove 61; the inner wall of the torsion ring 62 is axially slidingly matched with the outer wall of the torsion sleeve 7 and is circumferentially limited and clamped.

[0045] One end of the torsion sleeve 7 is integrally connected to the end surface of the reset ring 3, and the other end of the torsion sleeve 7 extends into the inner hole of the torsion ring 62. An axial slide groove is provided on the inner wall of the torsion ring 62, and a protrusion is provided on the outer wall of the torsion sleeve 7. The protrusion is axially slidably connected with the axial slide groove, and the protrusion is circumferentially limited and clamped with the axial slide groove, so as to ensure that the torsion sleeve 7 can move axially relative to the torsion ring 62, and the torsion ring 62 can be driven to rotate circumferentially through the torsion sleeve 7.

[0046] When the cable is subjected to circumferential torsional force, the follower ring 2 and the torsional sheath 7 are twisted circumferentially, and the torsional ring 62 is driven to rotate circumferentially through the torsional sheath 7. When the torsional ring 62 rotates circumferentially, the circumferentially rotating elastic reset member 5 is driven to undergo circumferential torsional elastic deformation. The circumferential torsional force applied to the cable connector is buffered and offset by the elastic deformation of the circumferentially rotating elastic reset member 5.

[0047] Furthermore, the circumferential rotation elastic return member 5 includes a circumferential return torsion spring 51 arranged between the outer wall of the torsion ring 62 and the inner wall of the torsion ring groove 61, one end of the circumferential return torsion spring 51 is pre-embedded in the outer wall of the torsion ring 62, and the other end of the circumferential return torsion spring 51 is fixed on the inner wall of the torsion ring groove 61.

[0048] The other parts of this embodiment are the same as those of Embodiment 1 or 2, and thus will not be described in detail.

[0049] Embodiment 4:

[0050] A cable joint surrounding enclosure device, improved on the basis of any one of embodiments 1-3, such as Figure 1 and Figure 5 As shown, an axial groove 11 is provided on the inner wall of the protective sleeve 1, a slider 31 is provided on the outer wall of the reset ring 3 and is slidably connected to the axial groove 11, a matching ring groove 32 is provided on the inner wall of the reset ring 3, the matching ring groove 32 is circumferentially rotatably connected to the outer side of the follower ring 2, and the matching ring groove 32 is axially limitedly clamped with the outer side of the follower ring 2.

[0051] The outer side of the follower ring 2 is axially limited by the matching annular groove 32, so that the follower ring 2 can rotate circumferentially relative to the reset ring 3, and at the same time ensure that the follower ring 2 can drive the reset ring 3 to move axially. When the reset ring 3 moves axially, the slider 31 on the outer wall of the reset ring 3 slides along the axial groove 11 on the inner wall of the protective sleeve 1 to guide the sliding of the reset ring 3 axially.

[0052] Furthermore, an insulating layer is provided on the outside of the protective sleeve 1, and an anti-corrosion layer is provided on the outside of the insulating layer. An installation ring groove is provided on the outside of the protective sleeve 1, and an insulating layer is sleeved in the installation ring groove and filled with epoxy resin, and an anti-corrosion layer is sleeved on the outside of the epoxy resin. By providing the insulating layer and the anti-corrosion layer, the insulation and corrosion resistance of the cable joint are improved, thereby extending the service life of the cable joint.

[0053] The other parts of this embodiment are the same as any one of Embodiments 1-3, so they are not described again.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. A cable joint surrounding enclosure device, comprising a protective sleeve (1) sleeved on the outside of the cable joint, characterized in that: At least one curved section located inside the protective sleeve (1) is symmetrically arranged on both sides of the cable connector; a follower ring (2) is fixedly sleeved on the outside of one side of the curved section; a reset ring (3) is rotatably mounted on the outside of the follower ring (2); the reset ring (3) is slidably arranged inside the protective sleeve (1); an axial elastic reset member (4) is arranged between the reset ring (3) and the end of the protective sleeve (1); and a circumferentially rotating elastic reset member (5) is arranged between the end surface of the follower ring (2) and the end of the protective sleeve (1).

2. A cable joint surrounding enclosure device according to claim 1, characterized in that: Inner bushings (6) are provided at both ends of the protective sleeve (1), and an axial elastic reset member (4) is provided between the end surface of the reset ring (3) and the end surface of the inner bushing (6).

3. A cable joint surrounding enclosure device according to claim 2, characterized in that: A limiting ring groove (33) is provided on the end surface of the reset ring (3), an axial elastic reset member (4) is provided between the limiting ring groove (33) and the end surface of the inner bushing (6), one end of the axial elastic reset member (4) is connected to the end of the inner bushing (6), and the other end of the axial elastic reset member (4) is clamped with the limiting ring groove (33).

4. A cable joint surrounding enclosure device according to claim 3, characterized in that: The axial elastic reset element (4) comprises an axial spring (41).

5. A cable joint surrounding enclosure device according to claim 2, characterized in that: A torsion sleeve (7) is coaxially arranged at one end of the follower ring (2) close to the inner sleeve (6); a torsion ring groove (61) is coaxially arranged at one end of the inner sleeve (6) close to the follower ring (2); a torsion ring (62) is rotatably arranged inside the torsion ring groove (61); a circumferentially rotatable elastic reset member (5) is arranged between the outer wall of the torsion ring (62) and the inner wall of the torsion ring groove (61); the inner wall of the torsion ring (62) and the outer wall of the torsion sleeve (7) are axially slidably engaged with each other and are circumferentially limited and clamped.

6. A cable joint surrounding enclosure device according to claim 5, characterized in that: The circumferential rotation elastic return element (5) comprises a circumferential return torsion spring (51) arranged between the outer wall of the torsion ring (62) and the inner wall of the torsion ring groove (61).

7. A cable joint surrounding enclosure device according to any one of claims 1 to 6, characterized in that: An axial groove (11) is provided on the inner wall of the protective sleeve (1), a sliding block (31) is provided on the outer wall of the reset ring (3) and is slidably connected to the axial groove (11), a matching ring groove (32) is provided on the inner wall of the reset ring (3), the matching ring groove (32) is rotatably connected to the outer side of the follower ring (2) along the circumferential direction, and the matching ring groove (32) is axially limitedly engaged with the outer side of the follower ring (2).

8. A cable joint surrounding enclosure device according to claim 7, characterized in that: An insulating layer is arranged on the outside of the protective sleeve (1), and an anti-corrosion layer is arranged on the outside of the insulating layer.

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