Mpp cable protection pipe

Abstract

The utility model relates to cable protection pipe technical field discloses a kind of MPP cable protection pipes, comprising: first pipe body and second pipe body;Limiting ring, adapter in first pipe body end, and one end of first pipe body is fixedly connected with first extrusion ring, and first extrusion ring ring is arranged in limiting ring, and the connecting interval between first extrusion ring and limiting ring is defined;Connecting ring, fixedly connected in the one end of second pipe body close to first pipe body, connecting ring is threadedly connected in connecting interval, second extrusion ring is arranged in the ring of connecting ring, second extrusion ring is in abutment with first extrusion ring, to make first extrusion ring have the movement tendency along the axis of first pipe body outward, and second extrusion ring is fixedly connected with second pipe body;Clamping assembly is set on connecting ring, and the clamping end of clamping assembly is clamped with limiting ring, to make limiting ring and connecting ring relative fixation. It can realize reinforcing protection effect, improve protection reliability.

Description

Technical Field

[0001] This utility model relates to the field of cable protection pipe technology, and in particular to an MPP cable protection pipe. Background Technology

[0002] MPP cable protection pipes are mainly made of polypropylene, which has the characteristics of high temperature resistance and pressure resistance, and can withstand damage caused by external pressure and foundation settlement.

[0003] In existing technologies, such as the MPP cable protection pipe structure with patent number CN222072685U, insert pipes and connecting pipes are respectively set at the ends between the pipe bodies. A sliding block compresses a spring to fix the insert block within a fixed block, achieving end-to-end connection and fixation of the pipe bodies. However, this means that the connection between the pipes in this technology relies entirely on the structural strength of the fixed plate. Furthermore, the compression sealing of the internal protective ring results in excessive tensile load on the fixed plate, making it prone to torsional deformation or even breakage under external forces, leading to low protection reliability. Therefore, there is an urgent need for an MPP cable protection pipe that solves the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide an MPP cable protection tube to solve the problems existing in the prior art, thereby enhancing the protection effect and improving the reliability of protection.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides an MPP cable protection pipe, comprising: the first tube body and the second tube body; A limiting ring is connected to the end of the first tube body. One end of the first tube body is fixedly connected to a first compression ring, and the first compression ring is arranged inside the limiting ring. A connection range is defined between the first compression ring and the limiting ring. A connecting ring is fixedly connected to one end of the second tube body near the first tube body. The connecting ring is threadedly connected within the connecting interval. A second compression ring is provided inside the connecting ring. The second compression ring abuts against the first compression ring so that the first compression ring has a tendency to move outward along the axis of the first tube body. The second compression ring is fixedly connected to the second tube body. A snap-fit ​​assembly is disposed on the connecting ring, and the snap-fit ​​end of the snap-fit ​​assembly snaps into the limiting ring to fix the limiting ring and the connecting ring relatively.

[0006] Preferably, the snap-fit ​​assembly includes: Positioning plates are provided in at least one pair, and the pair of positioning plates are fixedly connected to each other on both sides of the outer wall of the connecting ring. A sliding groove is provided on the side of the positioning plate near the limiting ring. A sliding plate is slidably connected to the slide groove, and two ends of a spring are respectively fixed between the sliding plate and the inner wall surface of the slide groove. A locking protrusion is fixed to one end of the sliding plate extending out of the slide groove. A locking groove is opened on the side end face of the limiting ring. When the limiting ring abuts against the positioning plate, the locking protrusion engages with the locking groove.

[0007] Preferably, a support plate is fixed to one side of the slide plate, a limiting groove is formed on one side of the inner wall of the slide groove, the support plate slides in the limiting groove, and the length of the locking protrusion is less than the length of the limiting groove.

[0008] Preferably, both the first extrusion ring and the second extrusion ring are tapered structures, and the tip of the first extrusion ring extends away from the first tube body, the tip of the second extrusion ring extends away from the second tube body, and the inner diameter of the tip of the first extrusion ring is greater than the outer diameter of the tip of the second extrusion ring and less than the maximum diameter of the second extrusion ring.

[0009] Preferably, a support ring is fixedly connected to one end of the second extrusion ring near the second tube body. The support ring extends to the second tube body and is fixedly connected to the second tube body. The maximum diameter of the second extrusion ring is smaller than the diameter of the support ring. The first extrusion ring abuts against the support ring so that the locking protrusion engages with the locking groove.

[0010] Preferably, an annular slide rail is fitted and fixedly connected to the outer periphery of the first tube, a first rotating block is slidably connected on the annular slide rail, a limiting ring is fitted on the outer periphery of the first tube, and the limiting ring is fixedly connected to the side wall of the first rotating block.

[0011] Preferably, the connecting ring is fitted with a second rotating block.

[0012] Preferably, the outer side wall of the connecting ring away from the positioning plate has a first thread, and the inner ring side of the limiting ring has a second thread, and the first thread and the second thread are screwed together.

[0013] The present invention discloses the following technical effects: This invention utilizes a rotating connecting limiting ring on a first pipe body and a first compression ring to define a connection range. By threading a connecting ring within this range, the first and second pipe bodies are joined. A second compression ring, encircling the connecting ring, abuts against the first compression ring. The first compression ring's outward axial movement ensures a tight seal between the first and second pipe bodies. Furthermore, a snap-fit ​​assembly on the connecting ring engages with the limiting ring, enhancing the stability between the limiting ring and the connecting ring. Compared to existing technologies, this invention, by threading the connecting ring within the limiting ring, effectively increases the load-bearing capacity of the first and second pipe bodies against axial tension, thus enhancing the reliability of the protection. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a diagram showing the connection relationship between the first tube and the second tube in this utility model; Figure 2 This is a diagram showing the snap-fit ​​relationship between the limiting ring and the connecting ring in this utility model; Figure 3 This is a diagram showing the positional relationship between the limiting ring and the first extrusion ring in this utility model; Figure 4 This is a schematic diagram of the structure of the annular slide rail and the first tube in this utility model; Figure 5 This is a schematic diagram of the structure when the first extrusion ring and the support ring abut against each other in this utility model; The components are: 1. First tube body; 2. Second tube body; 3. Limiting ring; 4. First compression ring; 5. Connecting ring; 6. Second compression ring; 7. Positioning plate; 8. Slide plate; 9. Spring; 10. Clip; 11. Support plate; 12. Support ring; 13. Annular slide rail; 14. First rotating block; 15. Second rotating block; 16. First thread; 17. Second thread. Detailed Implementation

[0016] 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.

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Reference Figures 1-5 This utility model provides an MPP cable protection pipe, comprising: The first tube body 1 and the second tube body 2; The limiting ring 3 is connected to the end of the first tube body 1. One end of the first tube body 1 is fixedly connected to the first compression ring 4, and the first compression ring 4 is encircled in the limiting ring 3. The connection range is defined between the first compression ring 4 and the limiting ring 3. A connecting ring 5 is fixedly connected to one end of the second tube body 2 near the first tube body 1. The connecting ring 5 is threadedly connected within the connecting interval. A second compression ring 6 is provided inside the connecting ring 5. The second compression ring 6 abuts against the first compression ring 4 so that the first compression ring 4 has a tendency to move outward along the axis of the first tube body 1. The second compression ring 6 is fixedly connected to the second tube body 2. A snap-fit ​​assembly is provided on the connecting ring 5. The snap-fit ​​end of the snap-fit ​​assembly snaps into the limiting ring 3 so that the limiting ring 3 and the connecting ring 5 are relatively fixed.

[0019] This invention achieves the docking of the first tube body 1 and the second tube body 2 by rotating and connecting a limiting ring 3 on the first tube body 1 and defining a connection range with the limiting ring 3 using a first compression ring 4. A connecting ring 5 is threaded into the connection range to achieve docking of the first tube body 1 and the second tube body 2. A second compression ring 6, which is arranged inside the connecting ring 5, abuts against the first compression ring 4. The first compression ring 4 forms an outward movement trend along the axis to ensure the sealing of the docking of the first tube body 1 and the second tube body 2. Furthermore, the locking component on the connecting ring 5 engages with the limiting ring 3, improving the stability of the connection between the limiting ring 3 and the connecting ring 5. Compared to existing technologies, this patent effectively improves the load-bearing capacity of the first tube body 1 and the second tube body 2 against axial tensile forces by threading the connecting ring 5 into the limiting ring 3, thus enhancing the reliability of the protection.

[0020] Specifically, the first tube 1 and the second tube 2 are MPP tubes of the same specification, and the first tube 1 and the second tube 2 represent several MPP tubes that are connected sequentially along the head-to-tail direction.

[0021] Furthermore, the snap-fit ​​component includes: Positioning plates 7 are provided in at least one pair. The pair of positioning plates 7 are fixedly connected to the outer side wall of the connecting ring 5. A groove is provided on the side of the positioning plate 7 near the limiting ring 3. The slide plate 8 is slidably connected in the slide groove, and the two ends of the spring 9 are respectively fixed between the slide plate 8 and the inner wall of the slide groove. The end of the slide plate 8 extending out of the slide groove is fixedly connected with the locking protrusion 10. The side end face of the limiting ring 3 is provided with a locking groove. When the limiting ring 3 abuts against the positioning plate 7, the locking protrusion 10 engages with the locking groove.

[0022] By rotating the limiting ring 3 relative to the first tube body 1, while threadedly connecting it to the connecting ring 5, the limiting ring 3 moves toward the positioning plate 7. When the limiting ring 3 abuts against the positioning plate 7, the rotation position of the limiting ring 3 causes the slot to engage with the corresponding protrusion 10. The spring 9 provides elastic support for the protrusion 10, reducing the possibility of axial rotation between the limiting ring 3 and the connecting ring 5.

[0023] In addition, while the positioning plate 7 slides to support the slide plate 8, the positioning plate 7 can also effectively control the relative rotation position between the limiting ring 3 and the connecting ring 5 by precisely setting the length of the positioning plate 7. As the limiting ring 3 moves toward the positioning plate 7 during rotation, the limiting ring 3 and the connecting ring 5 are relatively fixed when the limiting ring 3 and the positioning plate 7 abut against each other, and the slot can directly engage with the locking protrusion 10. The accurate control of the corresponding rotation angle by limiting the movement length is a common threaded connection technology, which will not be described in detail.

[0024] Furthermore, a support plate 11 is fixedly connected to one side of the slide plate 8, and a limiting groove is opened on one side of the inner wall of the slide groove. The support plate 11 is slidably connected in the limiting groove, and the length of the locking protrusion 10 is less than the length of the limiting groove.

[0025] The sliding plate 8 is limited by the limiting groove and the support plate 11 to prevent the sliding plate 8 from extending out of the positioning plate 7. When disassembling the first tube 1 and the second tube 2, the limiting ring 3 can be rotated to squeeze the locking protrusion 10, so that the locking protrusion 10 can be fully extended out of the sliding groove.

[0026] Furthermore, both the first extrusion ring 4 and the second extrusion ring 6 are tapered structures, with the tip of the first extrusion ring 4 extending away from the first tube 1 and the tip of the second extrusion ring 6 extending away from the second tube 2. The inner diameter of the tip of the first extrusion ring 4 is greater than the outer diameter of the tip of the second extrusion ring 6 and less than the maximum diameter of the second extrusion ring 6.

[0027] Specifically, the first compression ring 4 and the second compression ring 6 are made of MPP material and are respectively set as conical structures with their tips facing each other. During connection, they are guided and limited by the connecting ring 5 and the limiting ring 3, so that the second compression ring 6 extends into the first compression ring 4. As the thread of the limiting ring 3 rotates, the second compression ring 6 gradually extends into the first compression ring 4. The second compression ring 6 compresses the first compression ring 4, thereby improving the sealing performance of the first tube body 1 and the second tube body 2.

[0028] Furthermore, a support ring 12 is fixedly connected to one end of the second compression ring 6 near the second tube body 2. The support ring 12 extends to the second tube body 2 and is fixedly connected to the second tube body 2. The maximum diameter of the second compression ring 6 is smaller than the diameter of the support ring 12. The first compression ring 4 abuts against the support ring 12 so that the locking protrusion 10 engages with the locking groove.

[0029] By fixing the support ring 12 inside the second tube body 2, the support ring 12 provides structural support for the second extrusion ring 6, ensuring the structural strength of the second extrusion ring 6. As the thread of the limiting ring 3 rotates, the second extrusion ring 6 is fully inserted into the first extrusion ring 4 to extrude and expand the tip of the first extrusion ring 4. Furthermore, by using the first extrusion ring 4 to abut against the support ring 12, the connection position of the first extrusion ring 4 and the second extrusion ring 6 is effectively controlled, thereby ensuring that the locking protrusion 10 is accurately engaged with the locking groove.

[0030] Furthermore, an annular slide rail 13 is fixedly fitted to the outer periphery of the first tube body 1, and a first rotating block 14 is slidably connected to the annular slide rail 13. A limiting ring 3 is fitted outside the first tube body 1, and the limiting ring 3 is fixedly connected to the side wall of the first rotating block 14.

[0031] The limiting ring 3 is limited by the annular slide rail 13, and the limiting ring 3 is rotated by the first rotating block 14.

[0032] Furthermore, the connecting ring 5 is fitted with a second rotating block 15.

[0033] Specifically, the outer periphery of the first rotating block 14 and the second rotating block 15 are both regular hexagons, which facilitates the twisting of the first rotating block 14 and the clamping and fixing of the second rotating block 15.

[0034] Furthermore, the outer side of the connecting ring 5 away from the positioning plate 7 is provided with a first thread 16, and the inner ring side of the limiting ring 3 is provided with a second thread 17. The first thread 16 and the second thread 17 are screwed together.

[0035] The connecting ring 5 and the limiting ring 3 are threaded together by the first thread 16 and the second thread 17 to enhance the load on the axial tensile force and achieve stable docking of the first pipe body 1 and the second pipe body 2.

[0036] This utility model provides a working principle for an MPP cable protection tube: By inserting the connecting ring 5 into the limiting ring 3, the first rotating block 14 drives the limiting ring 3 to rotate, so that the limiting ring 3 and the connecting ring 5 are threadedly connected. As the limiting ring 3 rotates, the connecting ring 5 gradually extends into the limiting ring 3, so that the second extrusion ring 6 extends into the first extrusion ring 4 and extrudes outward until the first extrusion ring 4 abuts against the support ring 12. At the same time, the limiting ring 3 abuts against the positioning plate 7, so that the limiting ring 3 and the connecting ring 5 are firmly connected. The locking protrusion 10 and the locking groove are elastically engaged to achieve stable protection for the docking of the first tube body 1 and the second tube body 2.

[0037] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A MPP cable protection pipe, characterized in that, include: The first tube body (1) and the second tube body (2); A limiting ring (3) is connected to the end of the first tube body (1). One end of the first tube body (1) is fixedly connected to a first extrusion ring (4), and the first extrusion ring (4) is arranged inside the limiting ring (3). A connection range is defined between the first extrusion ring (4) and the limiting ring (3). A connecting ring (5) is fixedly connected to one end of the second tube body (2) near the first tube body (1). The connecting ring (5) is threadedly connected within the connecting interval. A second extrusion ring (6) is provided inside the connecting ring (5). The second extrusion ring (6) abuts against the first extrusion ring (4) so ​​that the first extrusion ring (4) has a tendency to move outward along the axis of the first tube body (1). The second extrusion ring (6) is fixedly connected to the second tube body (2). A snap-fit ​​assembly is disposed on the connecting ring (5), and the snap-fit ​​end of the snap-fit ​​assembly snaps into the limiting ring (3) so that the limiting ring (3) and the connecting ring (5) are relatively fixed.

2. The MPP cable protection pipe according to claim 1, characterized in that, The snap-fit ​​assembly includes: Positioning plates (7) are provided in at least one pair. The pair of positioning plates (7) are fixed to the outer side of the connecting ring (5) on both sides. The positioning plates (7) have a groove on the side near the limiting ring (3). The slide plate (8) is slidably connected in the slide groove, and the two ends of the spring (9) are respectively fixed between the slide plate (8) and the inner wall surface of the slide groove. The end of the slide plate (8) extending out of the slide groove is fixedly connected with a locking protrusion (10). The side end face of the limiting ring (3) is provided with a locking groove. When the limiting ring (3) abuts against the positioning plate (7), the locking protrusion (10) engages with the locking groove.

3. A MPP cable protection pipe according to claim 2, characterised in that: A support plate (11) is fixedly connected to one side of the slide plate (8), and a limiting groove is opened on one side of the inner wall of the slide groove. The support plate (11) slides in the limiting groove, and the length of the locking protrusion (10) is less than the length of the limiting groove.

4. The MPP cable protection pipe according to claim 2, characterized in that: The first extrusion ring (4) and the second extrusion ring (6) are both tapered structures. The tip of the first extrusion ring (4) extends away from the first tube body (1), and the tip of the second extrusion ring (6) extends away from the second tube body (2). The inner diameter of the tip of the first extrusion ring (4) is greater than the outer diameter of the tip of the second extrusion ring (6) and smaller than the maximum diameter of the second extrusion ring (6).

5. The MPP cable protection pipe according to claim 2, characterized in that: The second extrusion ring (6) is fixedly connected to a support ring (12) at one end near the second tube body (2). The support ring (12) extends to the second tube body (2) and is fixedly connected to the second tube body (2). The maximum diameter of the second extrusion ring (6) is smaller than the diameter of the support ring (12). The first extrusion ring (4) abuts against the support ring (12) so that the snap protrusion (10) engages with the snap groove.

6. The MPP cable protection pipe according to claim 1, characterized in that: An annular slide rail (13) is fixedly fitted on the outer periphery of the first tube body (1), and a first rotating block (14) is slidably connected on the annular slide rail (13). The limiting ring (3) is fitted on the outside of the first tube body (1), and the limiting ring (3) is fixedly connected to the side wall of the first rotating block (14).

7. The MPP cable protection pipe according to claim 1, characterized in that: The connecting ring (5) is fitted with a second rotating block (15).

8. The MPP cable protection pipe according to claim 2, characterized in that: The outer side of the connecting ring (5) away from the positioning plate (7) is provided with a first thread (16), and the inner ring side of the limiting ring (3) is provided with a second thread (17). The first thread (16) and the second thread (17) are screwed together.

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