Structure for preventing rubber sleeve from falling off

Abstract

The utility model provides a structure for preventing a rubber sleeve from falling off, which relates to the technical field of cable assemblies, and comprises a cable, a cable assembly is arranged on the cable, the cable assembly comprises a connecting nut, an outer conductor and a mounting nut, the connecting nut is arranged at the top of the outer conductor, and under the action of a thermal shrinkage limiting groove, when a rubber thermal shrinkage sleeve is subjected to thermal shrinkage, the mounting nut is arranged at the top of the outer conductor. When the adhesive heat-shrinkable sleeve is thermally shrunk, the molten adhesive preferentially fills a heat-shrinkable limiting groove formed in the cable assembly, so that after the adhesive heat-shrinkable sleeve is completely thermally shrunk, under the action of the adhesive heat-shrinkable sleeve filled into the heat-shrinkable limiting groove, the whole body is limited, the adhesive heat-shrinkable sleeve generates a certain reverse tension, and the cable assembly is prevented from being damaged. According to the cable assembly, the problem that key parts cannot be protected by the adhesive heat-shrinkable sleeve due to sliding displacement of the adhesive heat-shrinkable sleeve and the outer conductor, the mounting nut or the adhesive heat-shrinkable sleeve caused by inconsistent stress when the adhesive heat-shrinkable sleeve is heated and shrunk is avoided, and compared with a traditional cable assembly, the cable assembly has the advantage that the practicability in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable components, in particular to a structure for preventing a rubber sleeve from falling off. Background Art

[0002] Recently, the requirements for weapon systems have become increasingly higher, and phased array radars have been widely used. Special requirements have been put forward for both the in-band fluctuation of the amplitude and phase of a single-channel receiver and the amplitude and phase consistency between multiple receivers. Therefore, the amplitude inconsistency between receivers will affect the antenna's directivity diagram, thereby affecting the accuracy and angle, and will affect the simultaneous addition of multiple received signals, causing the main lobe of the useful signal to widen, thereby affecting the distance resolution. Therefore, phased array radars require not only low loss, low standing wave, and high reliability for cable components.

[0003] However, when installing the cable, a compatible cable assembly is usually used to install and fix the cable. The cable is fixed by inserting the cable into the tailstock and then rotating the mounting nut. However, after the cable is limited, a heat shrink tubing with adhesive needs to be installed on the cable assembly and the cable to seal and protect the cable assembly and the cable to prevent the cable and the cable assembly from being damaged after being exposed to rain.

[0004] However, in actual installation, due to the difference in diameter between the outer conductor, the tailstock and the cable, the adhesive heat shrink tubing will slide off the cable assembly due to inconsistent force when shrinking, resulting in a technical problem of unsatisfactory heat shrinkage effect of the adhesive heat shrink tubing.

[0005] Therefore, the utility model proposes a structure for preventing the rubber sleeve from falling off. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and provides a structure for preventing a rubber sleeve from falling off.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a structure for preventing a rubber sleeve from falling off, comprising a cable, a cable assembly being arranged on the cable, the cable assembly comprising a connecting nut, an outer conductor and a mounting nut, the connecting nut being arranged on the top of the outer conductor, the mounting nut being arranged on the bottom of the outer conductor, and a heat shrink sleeve with rubber being arranged on the cable assembly and the cable;

[0008] A heat shrink limit groove is provided on the outer conductor. The heat shrink limit groove is arranged near the bottom of the outer conductor and is an annular structure.

[0009] As a preferred embodiment, a first connecting piece is provided on the top of the outer conductor, and the outer conductor is rotatably connected to the bottom of the connecting nut through the first connecting piece.

[0010] The beneficial effect of adopting the above further solution is that the outer conductor is rotatably connected to the bottom of the connecting nut through the first connecting piece, so that the outer conductor and the connecting nut form a detachable split structure.

[0011] As a preferred implementation, a connection groove is provided at the bottom of the outer conductor, and the mounting nut is rotatably connected in the connection groove.

[0012] The beneficial effect of adopting the above further solution is: the mounting nut is fixed by installing the connecting groove opened at the bottom of the outer conductor, so that the mounting nut is rotatably connected to the outer conductor, so that the connecting nut, the outer conductor and the mounting nut are a detachable split structure.

[0013] As a preferred implementation, a sealing ring is provided between the outer conductor and the connecting nut, the sealing ring is an annular structure, and the sealing ring is sleeved on the first connecting member.

[0014] The beneficial effect of adopting the above-mentioned further scheme is: under the action of the sealing ring, the sealing between the connecting nut and the outer conductor is increased. Since the sealing ring is installed by being sleeved on the first connecting piece, when it is used later, if the sealing ring is damaged, the sealing ring can be removed from the first connecting piece and replaced with a new one. Since the sealing ring is made of silicone rubber, the sealing ring can be expanded and deformed and then sleeved on the first connecting piece when replaced.

[0015] As a preferred embodiment, a second connecting piece is provided on the top of the mounting nut, and the mounting nut is rotatably connected in the connecting groove through the second connecting piece.

[0016] The beneficial effect of adopting the above further solution is that the mounting nut is rotatably connected in the connecting groove through the second connecting member, so that the mounting nut and the outer conductor are a detachable split structure.

[0017] As a preferred embodiment, a tailstock is provided at the bottom of the mounting nut, and the cable is inserted inside the tailstock.

[0018] The beneficial effect of adopting the above further solution is that the cable is inserted into the tailstock for installation and fixation, so that the cable and the cable assembly are connected and fixed.

[0019] As a preferred implementation, the diameter of the cable matches the diameter of the tailstock.

[0020] The beneficial effect of adopting the above further solution is: by adapting the diameter of the cable to the diameter of the tailstock, the cable fits tightly after being inserted into the tailstock, reducing the distance between the cable and the tailstock, and preventing the cable from falling out of the tailstock during the fixing process.

[0021] As a preferred embodiment, the adhesive heat shrink sleeve is arranged on the outer conductor, the mounting nut and the cable, the length of the adhesive heat shrink sleeve is greater than the sum of the lengths of the outer conductor and the mounting nut, and the length of the adhesive heat shrink sleeve is less than the sum of the lengths of the connecting nut, the outer conductor and the mounting nut.

[0022] The beneficial effect of adopting the above further scheme is: the connection between the outer conductor, the mounting nut and the cable is sealed and protected by the adhesive heat shrinkable sleeve. After the adhesive heat shrinkable sleeve is heat-shrunk, it fits with the outer conductor, the mounting nut and the surface wall of the cable under the action of the adhesive heat shrinkable sleeve, thereby achieving a waterproof effect.

[0023] Compared with the prior art, the advantages and positive effects of the utility model are:

[0024] In the utility model, under the action of the heat shrink limit groove, when the heat shrinkable heat shrinkable sleeve with glue is heat-shrunk, the melted glue first fills the heat shrink limit groove provided on the cable assembly, so that after the heat shrinkable sleeve with glue is completely heat-shrunk, under the action of the heat shrinkable sleeve with glue filled in the heat shrink limit groove, the whole is limited, so that the heat shrinkable sleeve with glue generates a certain reverse pulling force, so as to avoid the heat shrinkable sleeve with glue and the outer conductor, the installation nut or the heat shrinkable sleeve with glue from sliding and displacing due to inconsistent force when the heat shrinkable sleeve with glue is heated and shrunk, resulting in the heat shrinkable sleeve with glue being unable to protect the key parts. Compared with traditional cable assemblies, the device improves the practicality during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front view of a structure for preventing a rubber sleeve from falling off according to the utility model;

[0026] Figure 2 This is a cross-sectional view of the outer conductor in a structure for preventing a rubber sleeve from falling off according to the utility model;

[0027] Figure 3 This is a structural diagram of a structure for preventing a rubber sleeve from falling off according to the utility model;

[0028] Figure 4 The utility model is a structural diagram of a cable assembly in a structure for preventing a rubber sleeve from falling off.

[0029] Reference numerals

[0030] 1. Cable assembly; 11. Connecting nut; 12. Outer conductor; 121. Heat shrink limit groove; 122. First connecting piece; 123. Connecting groove; 124. Sealing ring; 13. Mounting nut; 131. Tail stock; 132. Second connecting piece;

[0031] 2. Cable;

[0032] 3. Heat shrink tubing with adhesive. DETAILED DESCRIPTION

[0033] 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.

[0034] like Figure 1-4 As shown, the utility model provides a technical solution: a structure for preventing a rubber sleeve from falling off, comprising a cable 2, a cable assembly 1 is arranged on the cable 2, the cable assembly 1 comprises a connecting nut 11, an outer conductor 12 and a mounting nut 13, the connecting nut 11 is arranged at the top of the outer conductor 12, the mounting nut 13 is arranged at the bottom of the outer conductor 12, and a heat shrink sleeve 3 with glue is arranged on the cable assembly 1 and the cable 2; a heat shrink limit groove 121 is provided on the outer conductor 12, the heat shrink limit groove 121 is arranged near the bottom of the outer conductor 12, the heat shrink limit groove 121 is an annular structure, a first connecting piece 122 is provided on the top of the outer conductor 12, the outer conductor 12 is rotatably connected to the bottom of the connecting nut 11 through the first connecting piece 122, a connecting groove 123 is provided at the bottom of the outer conductor 12, the mounting nut 13 is rotatably connected in the connecting groove 123, and a second connecting piece 132 is provided on the top of the mounting nut 13 The mounting nut 13 is rotatably connected to the connecting groove 123 through the second connecting piece 132. A tail stock 131 is arranged at the bottom of the mounting nut 13. The cable 2 is inserted into the tail stock 131. Under the action of the heat shrink limit groove 121, when the heat shrinkable heat shrinkable sleeve 3 is heat-shrunk, the melted glue first fills the heat shrink limit groove 121 opened on the cable assembly 1. After the heat shrinkable heat shrinkable sleeve 3 is completely heat-shrunk, the heat shrinkable sleeve 3 filled into the heat shrink limit groove 121 is limited as a whole, so that the heat shrinkable sleeve 3 with glue generates a certain reverse pulling force, so as to avoid the heat shrinkable sleeve 3 with glue and the outer conductor 12, the mounting nut 13 or the heat shrinkable sleeve 3 with glue sliding displacement due to inconsistent force when the heat shrinkable sleeve 3 is heated and shrunk, so that the heat shrinkable sleeve 3 with glue cannot protect the key parts, thereby solving the technical problem of displacement of the heat shrinkable sleeve 3 with glue during use.

[0035] Further, such as Figure 3 - Figure 4As shown in the figure: the diameter of the cable 2 is adapted to the diameter of the tail seat 131, the adhesive heat shrinkable sleeve 3 is arranged on the outer conductor 12, the mounting nut 13 and the cable 2, the length of the adhesive heat shrinkable sleeve 3 is greater than the sum of the lengths of the outer conductor 12 and the mounting nut 13, and the length of the adhesive heat shrinkable sleeve 3 is less than the sum of the lengths of the connecting nut 11, the outer conductor 12 and the mounting nut 13, and the diameter of the cable 2 is adapted to the diameter of the tail seat 131, so that the cable 2 fits tightly after being inserted into the tail seat 131, and the distance between the cable 2 and the tail seat 131 is reduced, so as to prevent the cable 2 from falling from the tail seat 131 during the fixing process, and the adhesive heat shrinkable sleeve 3 is used to seal and protect the connection between the outer conductor 12, the mounting nut 13 and the cable 2, and when the adhesive heat shrinkable sleeve 3 is heat-shrunk, it fits with the outer conductor 12, the mounting nut 13 and the surface wall of the cable 2 under the action of the adhesive heat shrinkable sleeve 3, so as to achieve a waterproof effect, thereby solving the technical problem that the cable 2 falls from the tail seat 131 when the adhesive heat shrinkable sleeve 3 is installed.

[0036] The above solution still has the problem of poor sealing effect between the connecting nut 11 and the outer conductor 12. Figure 2 As shown: In the present embodiment, a sealing ring 124 is arranged between the outer conductor 12 and the connecting nut 11. The sealing ring 124 is an annular structure. The sealing ring 124 is sleeved on the first connecting piece 122. Under the action of the sealing ring 124, the sealing performance between the connecting nut 11 and the outer conductor 12 is increased. Since the sealing ring 124 is installed by being sleeved on the first connecting piece 122, when it is used later, if the sealing ring 124 is damaged, the sealing ring 124 can be removed from the first connecting piece 122 and replaced with a new one. Since the sealing ring 124 is made of silicone rubber, the sealing ring 124 can be expanded and deformed and then sleeved on the first connecting piece 122 when replaced.

[0037] Working principle:

[0038] like Figure 1-4 As shown, first, the adhesive heat shrink sleeve 3 is put on the cable 2, and then the cable 2 is inserted into the tail seat 131, and the mounting nut 13 is adjusted to lock the cable 2 to limit the position. After the fixation is completed, the adhesive heat shrink sleeve 3 is adjusted to the outer conductor 12, the mounting nut 13 and the cable 2, so that the adhesive heat shrink sleeve 3 completely wraps the mounting nut 13 and the connection between the mounting nut 13 and the outer conductor 12 and the connection between the mounting nut 13 and the cable 2, and the heating gun is turned on to heat the heat shrink tape. When shrinking the sleeve 3, the melted glue first fills the heat shrink limit groove 121 opened on the cable assembly 1, so that after the heat shrink sleeve 3 with glue is completely shrunk, the heat shrink sleeve 3 with glue filled in the heat shrink limit groove 121 limits the whole, so that the heat shrink sleeve 3 with glue produces a certain reverse pulling force, so as to avoid the heat shrink sleeve 3 with glue and the outer conductor 12, the installation nut 13 or the heat shrink sleeve 3 with glue due to inconsistent force when the heat shrink sleeve 3 is heated and shrunk.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A structure for preventing a rubber sleeve from falling off, comprising a cable (2), characterized in that: The cable (2) is provided with a cable assembly (1), the cable assembly (1) comprising a connecting nut (11), an outer conductor (12) and a mounting nut (13), the connecting nut (11) being arranged at the top of the outer conductor (12), the mounting nut (13) being arranged at the bottom of the outer conductor (12), and the cable assembly (1) and the cable (2) being provided with an adhesive heat shrinkable sleeve (3); The outer conductor (12) is provided with a heat shrink limit groove (121), the heat shrink limit groove (121) is arranged near the bottom of the outer conductor (12), and the heat shrink limit groove (121) is an annular structure.

2. The structure for preventing the rubber sleeve from falling off according to claim 1 is characterized in that: A first connecting piece (122) is provided on the top of the outer conductor (12), and the outer conductor (12) is rotatably connected to the bottom of the connecting nut (11) via the first connecting piece (122).

3. The structure for preventing the rubber sleeve from falling off according to claim 1 is characterized in that: A connecting groove (123) is provided at the bottom of the outer conductor (12), and the mounting nut (13) is rotatably connected in the connecting groove (123).

4. The structure for preventing the rubber sleeve from falling off according to claim 1 is characterized in that: A sealing ring (124) is provided between the outer conductor (12) and the connecting nut (11); the sealing ring (124) is an annular structure, and the sealing ring (124) is sleeved on the first connecting piece (122).

5. The structure for preventing the rubber sleeve from falling off according to claim 1 is characterized in that: A second connecting piece (132) is provided on the top of the mounting nut (13), and the mounting nut (13) is rotatably connected in the connecting groove (123) via the second connecting piece (132).

6. The structure for preventing the rubber sleeve from falling off according to claim 1 is characterized in that: A tailstock (131) is provided at the bottom of the mounting nut (13), and the cable (2) is inserted into the interior of the tailstock (131).

7. The structure for preventing the rubber sleeve from falling off according to claim 1 is characterized in that: The diameter of the cable (2) is matched to the diameter of the tailstock (131).

8. The structure for preventing the rubber sleeve from falling off according to claim 1 is characterized in that: The adhesive heat shrinkable tube (3) is arranged on the outer conductor (12), the mounting nut (13) and the cable (2); the length of the adhesive heat shrinkable tube (3) is greater than the sum of the lengths of the outer conductor (12) and the mounting nut (13); the length of the adhesive heat shrinkable tube (3) is less than the sum of the lengths of the connecting nut (11), the outer conductor (12) and the mounting nut (13).

Images