Connecting device of electric power protection tube

Abstract

The utility model relates to the technical field of electric power protection tubes, in particular to a connecting device of an electric power protection tube, which comprises a first sleeve assembly, a second sleeve assembly, a connecting assembly and a locking assembly, the first sleeve assembly and the second sleeve assembly are arranged at the end of a first protection pipe and the end of a second protection pipe in a sleeving mode correspondingly and connected through the connecting assembly. The locking assemblies used for locking the first protection pipe and the second protection pipe are arranged on the sides, opposite to the connecting assembly, of the first sleeve assembly and the second sleeve assembly correspondingly. The utility model aims to facilitate quick connection of the electric power protection tube and facilitate subsequent maintenance at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power protection tubes, in particular to a connection device for electric power protection tubes. Background Art

[0002] The power protection tube is a protective tube with a certain mechanical strength that is laid on the outer layer of the cable to prevent the cable from being damaged.

[0003] When the cable is installed or buried, it is necessary to cover it with a layer of power protection tube. The power protection tube mainly protects the cable from damage by external force or penetration of corrosive liquids during use. The power protection tube mainly includes PVC tube and MPP tube. Both of these pipes have strong pressure resistance and impact resistance, and have a strong protective effect on the cable. Since the laid cables are generally long, when using power protection tubes to pass the cables, multiple power protection tubes are usually connected to form a longer power protection tube to adapt to the longer cables. At present, the two power protection tubes are mainly connected by hot melt welding, but this reduces the installation efficiency of the staff. At the same time, when the cable fails and needs to be repaired, the power protection tube needs to be cut open, and then hot melt welded after the repair is completed, which is time-consuming and laborious.

[0004] Therefore, those skilled in the art are committed to developing a connection device for an electric power protection tube, which is not only conducive to the quick connection of the electric power protection tube, but also convenient for subsequent maintenance. Utility Model Content

[0005] In view of this, an object of the utility model is to provide a connection device for an electric power protection tube, which is not only conducive to the quick connection of the electric power protection tube, but also convenient for subsequent maintenance.

[0006] The utility model solves the above technical problems by the following means:

[0007] A connecting device for an electric power protection tube comprises a first sleeve assembly, a second sleeve assembly, a connecting assembly and a locking assembly;

[0008] The first sleeve assembly and the second sleeve assembly are respectively sleeved on the ends of the first protective tube and the second protective tube, the first sleeve assembly and the second sleeve assembly are connected via the connecting assembly, and the first sleeve assembly and the second sleeve assembly are respectively provided with the locking assembly for locking the first protective tube and the second protective tube on the side opposite to the connecting assembly.

[0009] According to the above technical means, after the connecting assembly connects the first sleeve assembly and the second sleeve assembly, the locking assembly connected to the first sleeve assembly and the second sleeve assembly locks the first protective tube and the second protective tube to connect them quickly, which is convenient for maintaining the cables in the protective tube after disassembly.

[0010] Furthermore, it also includes a support tube assembly, which is located inside the first protection tube and the second protection tube.

[0011] According to the above technical means, the support assembly is used to support the ends of the first protective tube and the second protective tube to prevent the locking assembly and the connecting assembly from causing damage to the ends of the first protective tube and the second protective tube.

[0012] Furthermore, the first sleeve assembly includes a first sleeve, a peripheral wall of the first sleeve is provided with at least one first shrinkage groove, and the first sleeve is inserted into the second sleeve assembly.

[0013] According to the above technical means, the first sleeve is sleeved outside the first protective tube to facilitate connection with the first protective tube and the connecting assembly.

[0014] Furthermore, the second sleeve assembly comprises a second sleeve, a peripheral wall of the second sleeve is provided with at least one second shrinkage groove, and the second sleeve is sleeved on the outer layer of the first sleeve.

[0015] According to the above technical means, the second sleeve is sleeved outside the second protective tube to facilitate connection with the second protective tube and the connecting assembly.

[0016] Furthermore, the connection assembly includes a connection thread arranged on the outer layer of the second sleeve, and a connection nut matched with the connection thread is arranged on the outer side of the second sleeve.

[0017] According to the above technical means, the connecting nut and the connecting thread cooperate to firmly connect the first sleeve and the second sleeve.

[0018] Furthermore, the first sleeve has a connection boss on its outer periphery, and the second sleeve has a plurality of connection grooves inside that cooperate with the connection boss.

[0019] According to the above technical means, the connection boss and the connection groove cooperate to further improve the connection stability between the first sleeve and the second sleeve.

[0020] Furthermore, the locking assembly includes a locking sleeve, the ends of the first sleeve and the second sleeve are both connected to the locking sleeve, the locking sleeve is conical, the outer layer of the locking sleeve is provided with a locking thread, and the outer sleeve of the locking thread is provided with a locking piece that cooperates with the locking thread.

[0021] According to the above technical means, the locking sleeve and the locking member cooperate to firmly connect the first protective tube and the second protective tube.

[0022] Furthermore, at least one third contraction groove is provided on the peripheral wall of the locking sleeve.

[0023] According to the above technical means, the shrinkage groove helps the locking member to further lock the protective tube.

[0024] Furthermore, the inner wall of the locking sleeve is provided with inverted teeth.

[0025] According to the above technical means, the inverted teeth reduce the slippage of the protective tube during its movement.

[0026] Furthermore, the support tube assembly includes a support tube, the support tube is hollow, and the outer side wall of the support tube is provided with anti-slip grooves.

[0027] According to the above technical means, the anti-skid pattern reduces the sliding of the support tube.

[0028] The utility model adopting the above scheme has the following beneficial effects:

[0029] 1. After the connecting assembly connects and locks the first sleeve assembly and the second sleeve assembly, the locking assembly connected to the first sleeve assembly and the second sleeve assembly locks and connects the first protective tube and the second protective tube, so that the first protective tube and the second protective tube are quickly connected, and it is also convenient to maintain the cables in the protective tube after disassembly.

[0030] 2. The support tube is used to protect the ends of the first protection tube and the second protection tube to prevent the ends of the first protection tube and the second protection tube from being damaged by excessive tightening force. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present application may be further illustrated by non-limiting examples given in the accompanying drawings;

[0032] Figure 1 This is a schematic diagram of the structure of the connection device of the power protection tube in the embodiment of the present application;

[0033] Figure 2 It is a schematic diagram of the explosion structure of the connection device of the power protection tube in the embodiment of the present application.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1. First sleeve assembly; 2. Second sleeve assembly; 3. Connecting assembly; 4. Locking assembly; 5. First protective tube; 6. Second protective tube; 7. Support tube assembly; 8. First sleeve; 9. First contraction groove; 10. Second sleeve; 11. Second contraction groove; 12. Connecting thread; 13. Connecting nut; 14. Connecting boss; 15. Locking sleeve; 16. Locking piece; 17. Third contraction groove; 18. Inverted teeth; 19. Support tube. DETAILED DESCRIPTION

[0036] The following will describe the implementation of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0037] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the figure. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. In the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0038] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0039] like Figure 1 and Figure 2As shown, an embodiment of the present application proposes a connection device for an electric power protection tube, comprising a first sleeve assembly 1, a second sleeve assembly 2, a connection assembly 3 and a locking assembly 4; the first sleeve assembly 1 and the second sleeve assembly 2 are respectively sleeved on the ends of the first protection tube 5 and the second protection tube 6, the first sleeve assembly 1 and the second sleeve assembly 2 are connected by the connection assembly 3, and the first sleeve assembly 1 and the second sleeve assembly 2 and the side opposite to the connection assembly 3 are respectively provided with a locking assembly 4 for locking the first protection tube 5 and the second protection tube 6.

[0040] In the utility model, after the connecting component 3 connects the first sleeve component 1 and the second sleeve component 2, the locking component 4 connected to the first sleeve component 1 and the second sleeve component 2 locks and connects the first protective tube 5 and the second protective tube 6, so that the first protective tube 5 and the second protective tube 6 are quickly connected, and it is also convenient to maintain the cables in the protective tube after disassembly.

[0041] like Figure 1 , Figure 2 As shown, in some embodiments, the first sleeve assembly 1 includes a first sleeve 8, which is clearance-fitted or tight-fitted with the first protective tube 5. The peripheral wall of the first sleeve 8 is provided with at least one first shrinkage groove 9. The first shrinkage groove 9 shrinks or expands accordingly according to the different diameters of the first sleeve 8 to adapt to protective tubes of different diameters. The first sleeve 8 is inserted into the second sleeve assembly 2.

[0042] The second sleeve assembly 2 comprises a second sleeve 10, the peripheral wall of which is provided with at least one second contraction groove 11, and the second sleeve 10 is sleeved on the outer layer of the first sleeve 8. In order to further enhance the connection strength between the first sleeve 8 and the second sleeve 10, the outer periphery of the first sleeve 8 comprises a connection boss 14, and the second sleeve 10 comprises a plurality of connection grooves matched with the connection boss 14.

[0043] In other embodiments, the first sleeve assembly 1 includes a first sleeve 8, the end of which has an internal thread, and the second sleeve assembly 2 includes a second sleeve 10, the end of which has an external thread matching the internal thread, and the ends of the first sleeve 8 and the second sleeve 10 are directly connected by threads.

[0044] In another embodiment, the connection assembly 3 includes a connection thread 12 disposed on the outer layer of the second sleeve 10, and a connection nut 13 matched with the connection thread 12 is disposed on the outer side of the second sleeve 10, and the first sleeve 8 and the second sleeve 10 are firmly connected by the connection thread 12 and the connection nut 13. In other embodiments, the connection assembly 3 includes a connection portion disposed on the first sleeve 8 and the second sleeve 10, and the first sleeve 8 and the second sleeve 10 are connected by connecting the connection portion through a snap-fit ​​connector to connect the first sleeve 8 and the second sleeve 10.

[0045] like Figure 1 , Figure 2 As shown, in some optional embodiments, the locking assembly 4 includes a locking sleeve 15, and the ends of the first sleeve 8 and the second sleeve 10 are both connected with the locking sleeve 15, the locking sleeve 15 is tapered, and the outer layer of the locking sleeve 15 is provided with a locking thread, and the outer sleeve of the locking thread is provided with a locking member 16 that cooperates with the locking thread, and the inner side of the locking member 16 is tapered, and at least one third contraction groove 17 is provided on the peripheral wall of the locking sleeve 15, and the inner wall of the locking sleeve 15 is provided with a reverse tooth 18. During the locking process, the reverse tooth 18 is tightly engaged with the outer wall of the first sleeve 8 and the second sleeve 10, so that the locking assembly 4 is tightly connected with the first sleeve 8 and the second sleeve 10, reducing the slippage during the dragging process. In other embodiments, the locking assembly 4 includes a locking buckle, and the locking assembly 4 is firmly connected with the first sleeve 8 and the second sleeve 10 through the locking buckle.

[0046] In this embodiment, in order to prevent the locking force of the locking assembly 4 from being too large, causing damage to the ends of the first protective tube 5 and the second protective tube 6, a support tube assembly 7 is also included. Specifically, the support tube assembly 7 is located inside the first protective tube 5 and the second protective tube 6. The support tube assembly 7 includes a support tube 19, which is hollow, the cable is located in the middle of the support tube 19, and the outer wall of the support tube 19 is provided with anti-slip grooves. In other embodiments, the support tube assembly 7 includes a support bellows, which is located inside the first protective tube 5 and the second protective tube 6.

[0047] The working principle of the utility model is as follows: after the support tube 19 is placed in the first protective tube 5 and the second protective tube 6, the first sleeve assembly 1, the locking assembly 4, the second sleeve assembly 2 and the locking assembly 4 are respectively sleeved on the outer layers of the first protective tube 5 and the second protective tube 6, and then the end of the first protective tube 5 and the end of the second protective tube 6 are abutted, and after the connecting boss 14 is inserted into the connecting groove, the first sleeve 8 and the second sleeve 10 are firmly connected by the connecting nut 13 and the connecting thread 12, and then the locking piece 16 is rotated to make its locking sleeve 15 tightly connected to the first protective tube 5 and the second protective tube 6.

[0048] The above is a detailed introduction to a connection device for an electric protection tube provided by the present application. The description of the specific embodiment is only used to help understand the method and its core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present utility model.

[0049] It should be noted that the phrases "one embodiment", "embodiment", "some optional embodiments", "exemplary embodiments", "some embodiments", etc. mentioned in the specification indicate that the described embodiment may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0050] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. A connection device for an electric protection tube, characterized in that: It comprises a first sleeve assembly (1), a second sleeve assembly (2), a connecting assembly (3) and a locking assembly (4); The first sleeve assembly (1) and the second sleeve assembly (2) are respectively sleeved on the ends of the first protective tube (5) and the second protective tube (6); the first sleeve assembly (1) and the second sleeve assembly (2) are connected via the connecting assembly (3); the first sleeve assembly (1) and the second sleeve assembly (2) are respectively provided with the locking assembly (4) for locking the first protective tube (5) and the second protective tube (6) on the side opposite to the connecting assembly (3).

2. The connecting device of the power protection tube according to claim 1, characterized in that: It also includes a support tube assembly (7), wherein the support tube assembly (7) is located inside the first protection tube (5) and the second protection tube (6).

3. The connecting device of the power protection tube according to claim 1, characterized in that: The first sleeve assembly (1) comprises a first sleeve (8), the peripheral wall of the first sleeve (8) is provided with at least one first contraction groove (9), and the first sleeve (8) is inserted into the second sleeve assembly (2).

4. The connecting device of the power protection tube according to claim 3, characterized in that: The second sleeve assembly (2) comprises a second sleeve (10), the peripheral wall of the second sleeve (10) is provided with at least one second shrinkage groove (11), and the second sleeve (10) is sleeved on the outer layer of the first sleeve (8).

5. The connecting device of the power protection tube according to claim 4, characterized in that: The connection assembly (3) comprises a connection thread (12) arranged on the outer layer of the second sleeve (10), and a connection nut (13) matching with the connection thread (12) is arranged on the outer side of the second sleeve (10).

6. The connecting device of the power protection tube according to claim 4, characterized in that: The first sleeve (8) has a connecting boss (14) on its outer periphery, and the second sleeve (10) has a plurality of connecting grooves inside that match the connecting boss (14).

7. The connecting device of the electric power protection tube according to claim 4, characterized in that: The locking assembly (4) comprises a locking sleeve (15), the ends of the first sleeve (8) and the second sleeve (10) are both connected to the locking sleeve (15), the locking sleeve (15) is conical, the outer layer of the locking sleeve (15) is provided with a locking thread, and the outer layer of the locking thread is provided with a locking piece (16) that cooperates with the locking thread.

8. The connection device for the electric power protection tube according to claim 7, characterized in that: At least one third contraction groove (17) is provided on the peripheral wall of the locking sleeve (15).

9. The connection device for the electric power protection tube according to claim 7, characterized in that: The inner wall of the locking sleeve (15) is provided with inverted teeth (18).

10. The connection device of the power protection tube according to claim 2, characterized in that: The support tube assembly (7) comprises a support tube (19), the support tube (19) is hollow, and the outer side wall of the support tube (19) is provided with anti-slip grooves.

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