Auxiliary connecting device for MPP cable protection pipe

Abstract

The utility model discloses an auxiliary connecting device for an MPP cable protection pipe, which belongs to the technical field of plastic pipeline connection, and is characterized by comprising a connecting bin, a sealing cover is clamped at the top of the connecting bin, a guide mechanism is fixedly connected to the surface of the connecting bin, clamping mechanisms are fixedly connected to the two sides of the guide mechanism, and the clamping mechanisms are fixedly connected with the sealing cover. The guiding mechanism provides a clear and fixed guiding path for laying of the protection pipe, so that the protection pipe can smoothly enter the inner side of the connecting bin along the guiding pipe, the situations of random swinging, direction deviation and the like of the protection pipe in the installation process are effectively avoided, and the accuracy of the laying direction of the protection pipe is guaranteed; the construction precision of the whole protection pipe laying project is improved, the clamping mechanism forms a stable annular clamping structure, the protection pipe is reliably fixed, the situation that the clamping ring is loosened due to external force interference in the protection pipe laying process is avoided, and then it is guaranteed that the protection pipe is located at the correct position in the guiding mechanism all the time.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipe connection, in particular to an auxiliary connection device for an MPP cable protection pipe. Background Art

[0002] MPP pipe, also known as MPP power cable protection pipe, is divided into trench type and trenchless type. MPP trenchless pipe is also called MPP jacking pipe or dragging pipe. MPP pipe uses modified polypropylene as the main raw material. It has the characteristics of high temperature resistance and external pressure resistance. It is suitable for medium and low voltage transmission line cable drainage pipes below 10KV.

[0003] When the existing auxiliary connection device is actually threading, the outer sheath of the cable is easy to contact with the inner protective layer, so that there is a friction barrier between the cable and the device, which not only affects the smoothness of threading, but also the outer sheath of the cable is damaged due to friction, thereby shortening the service life of the cable. For this reason, we provide a connection auxiliary device for a cable protection tube;

[0004] The existing patent (publication number: CN219998975U) is a connection auxiliary device for a cable protection tube, including a connection chamber, two groups of connection tubes connected to the connection chamber, and an auxiliary threading assembly arranged inside the connection tube, the auxiliary threading assembly includes a bracket fixedly installed inside the connection tube, a lower transmission roller rotatably connected to the bracket, an upper transmission roller rotatably connected to the connection seat, and a screw rod rotatably connected to the connection seat and threadedly connected to the connection tube, one side of the bracket and the connection seat are provided with a ratchet, and the ratchet is coaxially fixedly connected to the lower transmission roller and the upper transmission roller respectively, and a pawl is hinged on one side of the ratchet. The utility model effectively avoids the problem of friction between the cable sheath and the device due to the easy contact between the cable sheath and the inner protective layer through the auxiliary threading assembly, which not only affects the smoothness of threading, but also the cable sheath is damaged due to friction.

[0005] In view of the above problems, the existing patent provides a solution, but it lacks a structure to guide and clamp the protective tube when assisting the installation of the protective tube, which causes the protective tube to be easily displaced during the installation process and makes it difficult to accurately insert the protective tube and the connecting device, thereby reducing the installation efficiency.

[0006] To this end, an MPP cable protection tube auxiliary connection device is proposed. Utility Model Content

[0007] The purpose of the utility model is to provide an auxiliary connection device for an MPP cable protection tube, which can solve the problem that the existing plastic pipe connection lacks a structure for guiding and clamping the protection tube during the auxiliary installation of the protection tube, resulting in the protection tube being easily positionally offset during the installation process and being difficult to accurately insert the protection tube and the connection device, thereby reducing the installation efficiency.

[0008] To achieve the above object, the utility model provides the following technical solutions: an auxiliary connection device for an MPP cable protection tube, comprising a connection bin, a cover is clamped on the top of the connection bin, a guide mechanism is fixedly connected to the surface of the connection bin, and clamping mechanisms are fixedly connected to both sides of the guide mechanism;

[0009] The guiding mechanism comprises a guiding tube, a lower half clamping ring, an upper half clamping ring, a lower connecting plate, an upper connecting plate and four sliding grooves. The guiding tube is fixedly connected to the surface of the connecting bin, the sliding groove is provided on the surface of the guiding tube, the lower half clamping ring is slidably connected to the inner side of the lower sliding groove, the upper half clamping ring is movably connected to the top of the inner side of the guiding tube, the lower connecting plate is welded to both sides of the lower half clamping ring, and the upper connecting plate is welded to both sides of the upper half clamping ring.

[0010] Preferably, the clamping mechanism comprises a spring telescopic rod, an adsorption groove, a magnet and a handle, and the spring telescopic rod is fixedly connected to both sides of the top of the lower connecting plate.

[0011] Preferably, the adsorption groove is opened on the inner side of the top of the lower connecting plate, and the magnet is fixedly connected to the bottom of the upper connecting plate.

[0012] Preferably, the adsorption surface of the magnet is magnetically connected to the bottom of the inner side of the adsorption groove, and the handle is welded to the top of the upper half of the clamping ring.

[0013] Preferably, a protective cover is provided on the top of the handle, and anti-slip patterns are engraved on the surface of the protective cover.

[0014] Preferably, the adsorption surface at the bottom of the magnet is engraved with anti-slip patterns, and the adsorption surface at the bottom of the magnet is coated with epoxy paint.

[0015] Preferably, the inner walls of the lower half clamping ring and the upper half clamping ring are both sleeved with buffer pads, and the surfaces of the buffer pads are engraved with anti-slip patterns.

[0016] Preferably, a handle is fixedly connected to the top of the cover, and the surface of the handle is engraved with anti-slip patterns.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The guiding mechanism of the present application provides a clear and fixed guiding path for the laying of the protection pipe, so that the protection pipe can smoothly enter the inner side of the connection chamber along the guiding pipe, effectively avoiding the protection pipe from swinging randomly or deviating in direction during the installation process, ensuring the accuracy of the laying direction of the protection pipe and improving the construction accuracy of the entire protection pipe laying project;

[0019] 2. The clamping mechanism of the present application forms a stable annular clamping structure, which reliably fixes the protective tube and prevents the clamping ring from loosening due to external force interference during the laying of the protective tube, thereby ensuring that the protective tube is always in the correct position in the guiding mechanism and maintains a good guiding and protective state. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of the MPP cable protection tube auxiliary connection device of the utility model;

[0021] Figure 2 This is the overall structural diagram of the guiding mechanism of the utility model;

[0022] Figure 3 This is the overall structural diagram of the clamping mechanism of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the buffer pad of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the handle of the utility model.

[0025] In the figure, 1. connecting bin; 2. sealing cover; 3. guiding mechanism; 31. guiding tube; 32. lower half snap-on ring; 33. upper half snap-on ring; 34. lower connecting plate; 35. upper connecting plate; 36. sliding groove; 4. snap-on mechanism; 41. spring telescopic rod; 42. adsorption groove; 43. magnet; 44. grip; 5. protective cover; 6. buffer pad; 7. handle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-5 , the utility model provides a technical solution:

[0028] An MPP cable protection tube auxiliary connection device comprises a connection chamber 1, a cover 2 is clamped on the top of the connection chamber 1, a guide mechanism 3 is fixedly connected to the surface of the connection chamber 1, and clamping mechanisms 4 are fixedly connected to both sides of the guide mechanism 3;

[0029] The guiding mechanism 3 comprises a guiding tube 31, a lower half snap-in ring 32, an upper half snap-in ring 33, a lower connecting plate 34, an upper connecting plate 35 and four slide grooves 36. The guiding tube 31 is fixedly connected to the surface of the connecting bin 1. The slide groove 36 is provided on the surface of the guiding tube 31. The lower half snap-in ring 32 is slidably connected to the inner side of the lower slide groove 36. The upper half snap-in ring 33 is movably connected to the top of the inner side of the guiding tube 31. The lower connecting plate 34 is welded to both sides of the lower half snap-in ring 32. The upper connecting plate 35 is welded to both sides of the upper half snap-in ring 33.

[0030] In this embodiment: by setting up the connection chamber 1, the cover 2, the guide mechanism 3 and the protective tube can be supported and limited, and the user can open the cover 2 to perform operations such as hot-melt docking on the protective tube inside the connection chamber 1. When the inside of the connection chamber 1 needs to be inspected, maintained or further operated, the cover 2 is convenient to open and close, providing a convenient entrance for subsequent operations. The guide tube 31 provides a clear and accurate guiding path for the laying of the protective tube, ensuring that the protective tube can smoothly enter the connection chamber 1 and subsequent protective tubes along a predetermined direction. The lower half clamping ring 32 can support and preliminarily position the protective tube from below, and cooperate with other components to ensure that the protective tube is on the correct guiding path to prevent the protective tube from sinking or position deviation. The upper half clamping ring 33 is combined with the lower half clamping ring 32 The cooperation of the two can form an annular structure to limit the protection tube, play a stable restraining role on the protection tube, and ensure that the protection tube maintains an accurate position in the guide tube 31. The lower connecting plate 34 enables the force generated by the clamping mechanism 4 to effectively act on the lower half clamping ring 32, ensuring the clamping tightness between the upper and lower clamping rings 32 and the stable limitation of the protective tube. The upper connecting plate 35 connects the upper half clamping ring 33 and the magnet 43 in the clamping mechanism 4, ensuring that the magnetic attraction of the magnet 43 can be transmitted to the upper half clamping ring 33 through the upper connecting plate 35, so that the upper and lower half clamping rings 32 are tightly combined. The slide groove 36 provides a limited track for the sliding of the lower half clamping ring 32 and the upper half clamping ring 33, so that the lower half clamping ring 32 and the upper half clamping ring 33 can only move along the direction specified by the slide groove 36.

[0031] Specifically, Figure 3 As shown, the clamping mechanism 4 includes a spring telescopic rod 41 , an adsorption groove 42 , a magnet 43 and a handle 44 , and the spring telescopic rod 41 is fixedly connected to both sides of the top of the lower connecting plate 34 .

[0032] Specifically, Figure 3As shown, the adsorption groove 42 is opened on the inner side of the top of the lower connecting plate 34 , and the magnet 43 is fixedly connected to the bottom of the upper connecting plate 35 .

[0033] Specifically, Figure 3 As shown, the adsorption surface of the magnet 43 is magnetically connected to the bottom of the inner side of the adsorption groove 42 , and the handle 44 is welded to the top of the upper half of the clamping ring 33 .

[0034] In this embodiment, the spring telescopic rod 41 is provided to support and limit the upper clamping ring 33. When the upper clamping ring 33 is clamped with the lower clamping ring 32, the upper clamping ring 33 is driven to move downward. At the same time, when the upper clamping ring 33 is separated from the lower clamping ring 32, the upper clamping ring 33 is reset by the reset spring on the surface. The adsorption groove 42 provides an accurate adsorption position for the magnet 43, and cooperates with the adsorption surface at the bottom of the magnet 43. The magnet 43 uses its magnetic attraction characteristics to be magnetically connected to the bottom of the inner side of the adsorption groove 42, thereby driving the upper clamping ring 33 to move downward. The connecting ring 33 is tightly connected with the lower half connecting ring 32, and the handle 44 provides a convenient gripping position for construction workers. When it is necessary to open the upper half connecting ring 33 to put in or take out the protective tube, the construction workers can easily overcome the suction force of the magnet 43 and the elastic force of the spring telescopic rod 41 by holding the handle 44. At the same time, when the upper half connecting ring 33 and the lower half connecting ring 32 are connected to the protective tube, the user can use the handle 44 to drive the upper half connecting ring 33 and the lower half connecting ring 32 to move toward one side of the connecting chamber 1, thereby driving the protective tube to move toward the inner side of the connecting chamber 1.

[0035] Specifically, Figure 4 As shown, the top of the handle 44 is provided with a protective cover 5, and the surface of the protective cover 5 is engraved with anti-slip patterns.

[0036] Specifically, Figure 3 As shown, the adsorption surface at the bottom of the magnet 43 is engraved with anti-skid patterns, and the adsorption surface at the bottom of the magnet 43 is coated with epoxy paint.

[0037] In this embodiment: by providing the protective cover 5, a buffering effect is played, so that the construction workers feel more comfortable when grasping the handle 44, especially during long-term operation, the hand fatigue can be reduced; by providing the anti-slip texture, the friction between the user's hand and the handle 44 is increased; by providing the adsorption surface at the bottom of the magnet 43 with anti-slip texture, when the magnet 43 and the adsorption groove 42 are magnetically connected, the anti-slip texture can increase the contact friction between the two, and further stabilize the adsorption relationship between the two; by providing the epoxy coating, the magnet 43 can be prevented from rusting and corrosion, thereby extending the service life of the magnet 43.

[0038] Specifically, Figure 4As shown, the inner walls of the lower half snap ring 32 and the upper half snap ring 33 are both sleeved with a buffer pad 6 , and the surface of the buffer pad 6 is engraved with anti-slip patterns.

[0039] Specifically, Figure 5 As shown, a handle 7 is fixedly connected to the top of the cover 2, and the surface of the handle 7 is engraved with anti-slip patterns.

[0040] In this embodiment: by providing a buffer pad 6, when the protective tube is clamped in the two clamping rings, the buffer pad 6 is located between the clamping rings and the protective tube, playing a role of buffering and isolation. By providing anti-slip patterns, the friction with the surface of the protective tube is increased, which helps to better fix the position of the protective tube, making it less likely for the protective tube to slide or shift in the clamping ring. By providing a handle 7, a convenient gripping position is provided for construction personnel to open and close the cover 2. By providing anti-slip patterns, the friction between the user's hand and the handle 7 is increased.

[0041] Working principle: First, the user places the connecting chamber 1 at the predetermined connection position of the protection tube. Then, the user holds the handle 44 and steadily applies a certain amount of pressure downward. During this process, the upper half of the clamping ring 33 will gradually move downward until it is tightly fitted with the lower half of the clamping ring 32 to complete the clamping action between the two. After the clamping is completed, the user gently pulls the handle 44 to make it move slowly toward one side of the guide tube 31 until it is close to the tube inlet position of the guide tube 31. After reaching the designated position, the user lifts the handle 44 upward. The operation separates the upper half clamping ring 33 from the lower half clamping ring 32, thereby leaving space for placing the protection tube. After that, the user can put one end of the protection tube into the inner side of the lower half clamping ring 32. After the protection tube is in place, the user holds the handle 44 again and slowly moves downward. The handle 44 drives the upper half clamping ring 33 to move downward synchronously. At this time, the upper connecting plate 35 will apply downward pressure to the spring telescopic rod 41 as the upper half clamping ring 33 moves downward, causing the spring telescopic rod 41 to contract. At the same time, the spring telescopic rod 41 is fixed at the bottom of the upper connecting plate 35. The magnet 43 at the top will be aligned with the adsorption groove 42 and adsorbed together under the action of magnetic force. With the assistance of the elastic force of the spring telescopic rod 41 and the magnetic attraction between the magnet 43 and the adsorption groove 42, the upper half of the clamping ring 33 and the lower half of the clamping ring 32 can firmly form an annular structure. After completing the clamping of the protective tube, the user holds the handle 44 and moves it toward one side of the connecting chamber 1. The handle 44 drives the formed annular clamping structure and the protective tube fixed by it to move toward the inner side of the connecting chamber 1 until the protective tube successfully enters the interior of the connecting chamber 1. The protective tubes that need to be connected can be connected and transferred to the inside of the connecting compartment 1 through other guide tubes 31 according to the same operating steps as mentioned above. When all the protective tubes that need to be connected have been placed inside the connecting compartment 1, the user holds the handle 7 on the top of the cover 2 and opens the cover 2, so that the multiple protective tubes inside the connecting compartment 1 can be connected by operations such as hot-melt connection. After the protective tubes are connected, the user only needs to close the cover 2 and the connecting compartment 1 again, and the connection operation of the entire MPP cable protection tube is successfully completed.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary connection device for an MPP cable protection tube, comprising a connection compartment (1), characterized in that: The top of the connection bin (1) is clamped with a cover (2), the surface of the connection bin (1) is fixedly connected with a guide mechanism (3), and both sides of the guide mechanism (3) are fixedly connected with clamping mechanisms (4); The guide mechanism (3) comprises a guide tube (31), a lower half clamping ring (32), an upper half clamping ring (33), a lower connecting plate (34), an upper connecting plate (35) and four sliding grooves (36); the guide tube (31) is fixedly connected to the surface of the connecting bin (1); the sliding groove (36) is provided on the surface of the guide tube (31); the lower half clamping ring (32) is slidably connected to the inner side of the sliding groove (36); the upper half clamping ring (33) is movably connected to the top of the inner side of the guide tube (31); the lower connecting plate (34) is welded to both sides of the lower half clamping ring (32); and the upper connecting plate (35) is welded to both sides of the upper half clamping ring (33).

2. The MPP cable protection tube auxiliary connection device according to claim 1, characterized in that: The clamping mechanism (4) comprises a spring telescopic rod (41), an adsorption groove (42), a magnet (43) and a handle (44); the spring telescopic rod (41) is fixedly connected to two sides of the top of the lower connecting plate (34).

3. The MPP cable protection tube auxiliary connection device according to claim 2, characterized in that: The adsorption groove (42) is opened on the inner side of the top of the lower connecting plate (34), and the magnet (43) is fixedly connected to the bottom of the upper connecting plate (35).

4. The MPP cable protection tube auxiliary connection device according to claim 2, characterized in that: The adsorption surface of the magnet (43) is magnetically connected to the bottom of the inner side of the adsorption groove (42), and the handle (44) is welded to the top of the upper clamping ring (33).

5. The MPP cable protection tube auxiliary connection device according to claim 2, characterized in that: The top of the handle (44) is provided with a protective cover (5), and the surface of the protective cover (5) is engraved with anti-slip patterns.

6. The MPP cable protection tube auxiliary connection device according to claim 2, characterized in that: The adsorption surface at the bottom of the magnet (43) is engraved with anti-slip patterns, and the adsorption surface at the bottom of the magnet (43) is coated with epoxy paint.

7. The MPP cable protection tube auxiliary connection device according to claim 1, characterized in that: The inner walls of the lower half clamping ring (32) and the upper half clamping ring (33) are both sleeved with a buffer pad (6), and the surface of the buffer pad (6) is engraved with anti-slip patterns.

8. The MPP cable protection tube auxiliary connection device according to claim 1, characterized in that: A handle (7) is fixedly connected to the top of the cover (2), and a surface of the handle (7) is engraved with anti-slip patterns.

Images