A cable installation protection device and a cable installation method

Abstract

A protective device for cable installation and a cable installation method, comprising: an outer shell, a buffer core slidably provided inside the outer shell, the outer shell is made of metal, the buffer core is made of elastic material, the outer shell and the buffer core are both hollow tubular structures, installation openings are axially provided on the side walls of the outer shell and the buffer core, the installation openings of the outer shell and the buffer core are connected, the cable can be pressed into the protective device through the installation opening, the protective device is used to cover and protect the cable, the outer shell plays a role of rigid protection and preventing the buffer core from being worn, the buffer core plays a role of flexible buffering, and the buffer core can be drawn out from the outer shell to meet the different bending angle requirements of the cable at the corner.

Description

Technical Field

[0001] The present invention relates to the technical field of cable construction, and in particular to a protective device for cable installation and a cable installation method. Background Art

[0002] A cable is made of one or more mutually insulated conductors and an outer insulating protective layer. Each group of conductors is insulated from each other and are often twisted around a center. The entire outside is covered with a highly insulating covering and is used for telecommunications or power transmission.

[0003] Cables are used in different spaces according to their different fields of use. Some are suspended, while others are placed on the ground and in walls. Cables placed on the ground have higher requirements for structural strength. Currently, cable protective shells are divided into rigid shells (such as publication number CN108376956B) and flexible shells. The rigid protective shell is a split structure with upper and lower parts connected by elastic parts. The upper and lower parts can move vertically relative to each other, thereby reducing the compressive impact through the compressive deformation of the protective shell; the flexible shell is mostly a tubular structure made of rubber, which is directly wrapped around the outside of the cable to protect it.

[0004] Actual cable laying is not all straight-line laying, but there are corners. The rigid shell structure cannot adapt to the corner scenario, and shells with corresponding angles need to be prepared. However, the cable laying angles are not fixed, and several shells with different angles need to be prepared to meet the laying requirements. The cost of use is high. The flexible protective shell is wrapped around the outside of the cable. Although it can bend to adapt to the corner, the part of the flexible protective shell away from the corner is easily stepped on and worn, and the inner wall of the flexible protective shell fits tightly against the outer wall of the cable, which seriously affects the heat dissipation of the cable. Summary of the invention

[0005] In order to solve the technical problem that the existing shock-absorbing protection device for cables in the above-mentioned background technology cannot meet the requirements of wear resistance and suitability for use in corner scenes, the present invention provides a protection device for cable installation and a cable installation method.

[0006] The technical solution of the present invention is as follows:

[0007] The present invention provides a protective device for cable installation, comprising: an outer shell, a buffer core is slidably provided inside the outer shell, the outer shell is made of metal, the buffer core is made of elastic material, the outer shell and the buffer core are both hollow tubular structures, installation openings are axially provided on the side walls of the outer shell and the buffer core, the installation openings of the outer shell and the buffer core are communicated, the cable can be pressed into the protective device through the installation opening, the protective device is used to cover and protect the cable, the outer shell plays a role of rigid protection and preventing the buffer core from being worn, the buffer core plays a role of flexible buffering, the buffer core can be drawn out from the outer shell to meet the different bending angle requirements of the cable at the corner, the buffer core comprises an inner core body, the side wall of the inner core body is provided with an installation opening along its axial direction, two limit sealing parts are fixedly provided on the inner wall of the inner core body, the limit sealing part extends along the axial direction of the inner core body, the two limit sealing parts are relatively distributed on both sides of the installation opening of the inner core body, and the setting of the limit sealing part can seal the installation opening to limit the position of the cable.

[0008] Preferably, the limiting sealing portion is inclined in a direction away from the installation opening of the inner core body to facilitate pressing the cable into the inner core body, and the ends of the two limiting sealing portions abut against each other to seal the installation opening on the inner core body to protect the cable.

[0009] Preferably, the cross-section of the end of the limiting sealing part is circular and tilted toward the direction close to the installation port, so that the limiting sealing part has a stronger self-resetting ability. At the same time, the thickness of the end of the limiting sealing part is increased, so that the buffering effect of the end is better to compensate for the lack of buffering at the installation port.

[0010] Preferably, a plurality of support parts are fixedly provided on the inner wall of the inner core body, the plurality of support parts are arranged at intervals in the circumferential direction, and the support parts extend along the axial direction of the inner core body, and there is space between adjacent support parts to allow air flow, so as to facilitate air flow and heat exchange with the cable, thereby facilitating heat dissipation of the cable.

[0011] Preferably, the limiting sealing portion and the supporting portion are both hollow structures with openings at both ends, and air is allowed to circulate inside the limiting sealing portion and the supporting portion, thereby increasing the air flow rate and making it easier to dissipate heat from the cable.

[0012] Preferably, the diameter of the space enclosed by the limiting sealing portion and the supporting portion is not greater than the outer diameter of the cable, which can effectively limit the position of the cable.

[0013] Preferably, a protrusion is fixedly provided on the inner wall of the outer shell, and the protrusion extends along the axial direction of the outer shell. A sliding groove cooperating with the protrusion is provided on the outer wall of the inner core body, which can limit the movement of the buffer inner core and ensure that the installation port of the outer shell and the buffer inner core are always connected for easy use.

[0014] The present invention provides a cable installation method, which is as follows:

[0015] Place the protective device according to the cable laying direction, pull the buffer inner core of the protective device at the corner out of the shell to a set length, and make the buffer inner cores at other positions in the corresponding shell;

[0016] Lay the cables and press them into the protective devices at the corresponding positions. Before installing the cables at the corners, bend the buffer core at the corresponding positions to the specified angle.

[0017] It can be seen from the above technical solutions that the advantages of the present invention are:

[0018] 1. The cable can be pressed into the protective device through the installation port, and the protective device can be used to cover and protect the cable. When the cable is laid at a corner, the buffer core can be pulled out from the outer shell. Since the buffer core is flexible and easy to bend, it can effectively adapt to any angle of the corner. The buffer core is protected by the outer shell when it is not at the corner, and it will not directly contact the ground even if it is stepped on, which effectively protects the buffer core. This can not only meet the protection needs of cable corner laying, but also ensure the rigidity of the protective device.

[0019] 2. A plurality of support parts are arranged in annular intervals in the inner core body. The support parts and the limit sealing parts are hollow and open at both ends. The cable is supported and limited by the cooperation of the support parts and the limit sealing parts. The hollow structure is easy to deform and has stronger buffering capacity. Air circulation is allowed between adjacent support parts and inside the support parts and the limit sealing parts. The buffer inner core does not completely cover the outer wall of the cable, which is more conducive to the heat dissipation of the cable.

[0020] 3. The main side wall of the support part is a continuous wave shape in the vertical direction. The continuous wave shape is easier to deform, has a better buffering effect, and has a strong reset ability. The side wall is a continuous wave shape, and its deformation is similar to spring compression. The support capacity after deformation is stronger. While the buffering effect is good, the anti-dumping ability is strong, which avoids the blockage of the middle space and affects the air flow and the heat dissipation of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of a protective device for cable installation according to one or more embodiments of the present invention;

[0023] Figure 2 A schematic diagram of the structure of a housing according to one or more embodiments of the present invention;

[0024] Figure 3 It is a schematic structural diagram of a buffer core according to one or more embodiments of the present invention;

[0025] Figure 4 Another structural schematic diagram of a buffer core according to one or more embodiments of the present invention;

[0026] The components represented by the reference numerals in the figure are:

[0027] 1. Outer shell; 2. Buffer inner core; 21. Inner core body; 22. Position limiting sealing part; 23. Support part; 3. Protrusion; 4. Slide groove. DETAILED DESCRIPTION

[0028] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0029] Example 1

[0030] In a typical embodiment of the present invention, Figure 1-Figure 4 As shown, a protective device for cable installation is proposed, comprising: an outer shell 1 and a buffer inner core 2, wherein the buffer inner core 2 is slidably arranged inside the outer shell 1.

[0031] Among them, both ends of the outer shell 1 are open, the outer shell 1 is made of metal, the buffer core 2 is made of elastic materials such as rubber and silicone, the outer shell 1 and the buffer core 2 are both hollow tubular structures, and the side walls of the outer shell 1 and the buffer core 2 are provided with installation openings along their axial directions, that is, the cross-sections of the outer shell 1 and the buffer core 2 are both C-shaped, and the installation openings of the outer shell 1 and the buffer core 2 are connected, so as to facilitate the placement of the cable.

[0032] The buffer core 2 made of elastic material has a buffering effect, and the outer shell 1 made of metal material plays a protective role to prevent the buffer core 2 from being worn. The buffer core 2 is slidably arranged in the outer shell 1. When the cable laying encounters a corner, the buffer core 2 can be partially pulled out from the outer shell 1. Since the buffer core 2 is flexible and easy to bend, it can effectively adapt to any angle of the corner. Since there will be no trampling and dragging at the corner (such as the corner of the wall), the protruding part of the buffer core 2 will not be worn due to trampling and dragging; the buffer core 2 is protected by the outer shell 1 when it is not at the corner, and will not directly contact the ground even if it is stepped on, thereby effectively protecting the buffer core 2, thereby being able to meet the protection needs of cable corner laying and ensure the rigidity of the protection device.

[0033] like Figure 1 As shown, two protrusions 3 are fixedly provided on the inner wall of the outer shell 1, and the two protrusions 3 are relatively arranged on both sides of the installation opening, and the protrusions 3 extend along the axial direction of the outer shell 1; a slide groove 4 is opened on the outer wall of the buffer inner core 2, and two slide grooves 4 are provided and are relatively distributed on both sides of the installation opening of the buffer inner core 2, and the slide groove 4 extends along the axial direction of the buffer inner core 2, and the protrusion 3 is slidably set in the slide groove 4. The setting of the protrusion 3 and the slide groove 4 can limit the movement of the buffer inner core 2 and ensure that the outer shell 1 is always connected with the installation opening of the buffer inner core 2.

[0034] The buffer inner core 2 includes an inner core body 21, a limiting sealing portion 22 and a supporting portion 23, wherein an installation opening is opened on the inner core body 21 along its axial direction, the cross-section of the inner core body 21 is C-shaped, the outer diameter of the inner core body 21 is the same as the inner diameter of the outer shell 1, and the slide groove 4 is opened on the outer wall of the inner core body 21.

[0035] There are two limiting sealing parts 22, which are relatively fixedly arranged on the inner wall of the inner core body 21, and the two limiting sealing parts 22 are relatively distributed on both sides of the installation opening of the inner core body 21. The limiting sealing parts 22 are inclined in the direction away from the installation opening of the inner core body 21, and the ends of the two limiting sealing parts 22 are abutted against each other to seal the installation opening on the inner core body 21 to protect the cable. In actual use, the cable can be pressed into the inner core body 21 through the installation opening, and the installation opening is blocked by the limiting sealing parts 22. The limiting sealing parts 22 are inclined in the direction away from the inner core body 21 to facilitate the pressing of the cable.

[0036] like Figure 3 As shown, the cross-section of the end of the limiting sealing part 22 is circular and tilted toward the direction close to the installation port, so that the limiting sealing part 22 has a stronger self-resetting ability. At the same time, the thickness of the end of the limiting sealing part 22 is increased, so that the buffering effect of the end is better to compensate for the lack of buffering at the installation port.

[0037] The limiting sealing portion 22 extends along the length direction of the inner core body 21 . The limiting sealing portion 22 is a hollow structure for easy bending. Both ends of the limiting sealing portion 22 are open to facilitate air flow along the axial direction of the inner core body 21 .

[0038] A plurality of support portions 23 are provided, and the plurality of support portions 23 are fixedly arranged on the inner wall of the inner core body 21 and are arranged at intervals along the annular direction of the inner core body 21. The support portions 23 extend along the axial direction of the inner core body 21 and are used to support the cable. The diameter of the space enclosed by the support portion 23 and the limiting sealing portion 22 is not greater than the outer diameter of the cable.

[0039] The support portion 23 is a hollow structure, which plays the role of supporting the cable and buffering and shock absorbing. The hollow support portion 23 is easier to deform and can be buffered by deformation, thereby effectively protecting the cable. There is a space between adjacent support portions 23 to allow air to flow, so as to facilitate air flow and heat exchange with the cable and facilitate the heat dissipation of the cable. Both ends of the support portion 23 are open, and the interior of the support portion 23 also allows air to flow to improve the heat dissipation capacity. The end cross-section of the support portion 23 is arc-shaped to further reduce the contact area with the cable. The main body of the support portion 23 (except the rest of the end) is a hollow rectangular structure, which can be more easily deformed.

[0040] In other embodiments, Figure 4 As shown, the main body of the support portion 23 is still a hollow rectangular structure, and its side wall is a continuous wave shape in the vertical direction. Compared with the plate-like side wall structure, the continuous wave shape is easier to deform, has a better buffering effect, and has a strong reset ability. In addition, the deformation of the plate-like side wall is generally tilted to one side, which can easily cause the middle space to be blocked. The side wall is a continuous wave shape, and its deformation is similar to spring compression. The support capacity after deformation is stronger. While having a good buffering effect, it can also prevent tipping and avoid blocking the middle space and affecting air flow.

[0041] It can be understood that the inner core body 21, the limiting sealing part 22 and the supporting part 23 are all made of elastic materials, and the fixed connection between the inner core body 21 and the limiting sealing part 22 and the supporting part 23 mentioned in this embodiment is achieved by integral molding.

[0042] Example 2

[0043] In another typical embodiment of the present invention, a cable installation method is proposed, using the cable installation protection device mentioned in Example 1, which is as follows:

[0044] Place the protective device according to the cable laying direction, pull the buffer inner core 2 of the protective device at the corner out of the outer shell 1 to a set length, and make the buffer inner core 2 at the remaining position in the corresponding outer shell 1;

[0045] Lay the cable and press it into the protective device at the corresponding position. Before installing the cable at the corner, bend the buffer core 2 at the corresponding position to a specified angle to adapt to the angle of the corner, and then press the cable into the buffer core 2 at the corner.

[0046] The setting of the buffer core 2 can meet the cable laying requirements at corners. The limiting sealing part 22 and the supporting part 23 in the buffer core 2 can effectively limit the position of the cable. The supporting part 23 can perform buffering by deformation to protect the cable; the protection device at non-corner locations protects the cable through the rigid protection of the outer shell 1 and the flexible buffering of the buffer core 2. At the same time, the outer shell 1 is used to protect the buffer core 2 to avoid friction damage to the buffer core 2 (such as kicking and dragging the cable to move when stepped on); in addition, the setting of the supporting part 23 and the limiting sealing part 22 avoids complete wrapping of the outer wall of the cable while ensuring the limiting, thereby facilitating the flow of air, thereby solving the problem of cable heat dissipation while providing buffering protection.

[0047] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cable installation method, characterized in that: The details are as follows: The protective device is placed according to the cable laying direction, the protective device comprising: an outer shell (1), both ends of the outer shell (1) are open, a buffer core (2) is slidably provided inside the outer shell (1), the outer shell (1) is made of metal, the buffer core (2) is made of elastic material, the outer shell (1) and the buffer core (2) are both hollow tubular structures, the side walls of the outer shell (1) and the buffer core (2) are provided with mounting openings along the axial direction, the mounting openings of the outer shell (1) and the buffer core (2) are connected, the buffer core (2) comprises an inner core body (21), the side wall of the inner core body (21) is provided with a mounting opening along the axial direction thereof, two limiting sealing parts (22) are fixedly provided on the inner wall of the inner core body (21), the limiting sealing parts (22) extend along the axial direction of the inner core body (21), and the two limiting sealing parts (22) are relatively distributed on both sides of the mounting opening of the inner core body (21); Pulling the buffer inner core (2) of the protective device at the corner outward from the outer shell (1) by a set length, and making the buffer inner core (2) at the remaining position be located in the corresponding outer shell (1); Lay the cable and press it into the protective device at the corresponding position. Before installing the cable at the corner, bend the buffer core (2) at the corresponding position to a specified angle.

2. A cable installation method according to claim 1, characterized in that: The position limiting sealing portion (22) is arranged obliquely in a direction away from the mounting opening of the inner core body (21), and the ends of the two position limiting sealing portions (22) are in contact with each other.

3. A cable installation method according to claim 1, characterized in that: The cross section of the end of the limiting sealing portion (22) is circular and tilted toward the direction close to the installation opening.

4. A cable installation method according to claim 1, characterized in that: A plurality of support portions (23) are fixedly provided on the inner wall of the inner core body (21); the plurality of support portions (23) are arranged at intervals in the circumferential direction, and the support portions (23) extend along the axial direction of the inner core body (21).

5. A cable installation method according to claim 4, characterized in that: The limiting sealing portion (22) and the supporting portion (23) are both hollow structures with openings at both ends.

6. A cable installation method according to claim 4, characterized in that: The end of the support portion (23) is arc-shaped, the main body of the support portion (23) is a hollow rectangular structure, and the side wall of the main body of the support portion (23) is vertically continuous and wavy.

7. A cable installation method according to claim 1, characterized in that: A protrusion (3) is fixedly provided on the inner wall of the outer shell (1), the protrusion (3) extends along the axial direction of the outer shell (1), and a sliding groove (4) cooperating with the protrusion (3) is provided on the outer wall of the inner core body (21).

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