Low-voltage waterproof plug

Abstract

The utility model discloses a low-voltage waterproof plug, which comprises a cable sleeve seat, more than one electrical connecting rod arranged on the cable sleeve seat and an insulating sleeve assembly covered on the electrical connecting rod, and any electrical connecting rod is provided with at least one mounting station for accommodating an electrical terminal; the insulating sleeve assembly comprises a sealing cover, a plurality of insulating cylinders and a plurality of top covers arranged at the top ends of the insulating cylinders in a one-to-one correspondence mode. The plurality of insulating cylinders sleeve the plurality of electric connecting rods in a one-to-one correspondence manner, and the plurality of insulating cylinders are sequentially spliced to form a cylinder queue; a connecting hole is formed in the middle of the top cover, and the sealing cover is embedded in the connecting hole of the top cover at the tail end of the barrel queue. The plurality of insulating cylinders are constructed into the cylinder queue in a splicing manner, and the plastic package protection of the electrical connecting rods is improved, so that the waterproof performance of the low-voltage waterproof plug and the use safety of the low-voltage power transformation box are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable connection mechanism technical field, concretely relates to a low pressure waterproof plug. BACKGROUND

[0002] Low voltage transformer box is one of important electrical components of executing electric energy distribution transmission, and the cable connection end position of the existing low voltage transformer box is mainly connected through the electrically connecting of cable terminal and the electrically output end of box, and the electric energy is transported based on the mode of inserting, and the water vapor of external environment invades the inside of low voltage transformer box due to the mode of inserting, which affects the use safety of low voltage transformer box. UTILITY MODEL CONTENTS

[0003] The utility model discloses a low pressure waterproof plug, a plurality of insulation cylinder bodies are constructed as cylinder body queue through splicing mode, the plastic package protection of electrically connecting rod is improved, thereby the waterproof performance of low pressure waterproof plug is improved, and the use safety of low voltage transformer box is improved.

[0004] The utility model provides a low pressure waterproof plug, the low pressure waterproof plug includes: cable sleeve seat, the electrically connecting rod of one more than setting in the cable sleeve seat and the insulating sleeve assembly covering the electrically connecting rod, and any electrically connecting rod is provided with at least one installation station for accommodating electric property terminal,

[0005] The insulating sleeve assembly includes: sealing cover, a plurality of insulation cylinder bodies and a plurality of top covers one-to-one corresponding setting in the top end of a plurality of insulation cylinder bodies,

[0006] A plurality of insulation cylinder bodies are one-to-one corresponding sleeve jointed outside a plurality of electrically connecting rods, and a plurality of insulation cylinder bodies are sequentially spliced to form cylinder body queue,

[0007] The middle part of top cover is provided with connecting hole, and the sealing cover is embedded in the connecting hole of the top cover in the end position of cylinder body queue.

[0008] Further, the electrically connecting rod includes variable diameter screw rod and conductive rod,

[0009] One end of the variable diameter screw rod is fixed in the cable sleeve seat, and the other end of the variable diameter screw rod is connected with the conductive rod.

[0010] Further, the circumferential side wall of the cable sleeve seat is provided with limiting groove, and the limiting groove is assembled with waterproof washer.

[0011] Further, the low pressure waterproof plug further includes electric property mounting block, the electric property mounting block is sleeve jointed and fixed on the electrically connecting rod, and the electric property mounting block is provided with installation groove for accommodating electric property terminal.

[0012] Further, the insulating cylinder is provided with an outwardly protruding insulating branch pipe, and the electrical terminal is arranged in the insulating branch pipe.

[0013] Further, the electrical connecting rod is provided with a locking nut, and one end of the locking nut is abutted on the electrical mounting block.

[0014] Further, the low-voltage waterproof plug further comprises a locking screw, and the top end of the electrical connecting rod at the end of the cylinder array is provided with a matching hole.

[0015] The locking screw is sequentially inserted into the connecting hole and the matching hole.

[0016] Further, the middle part of the top cover is provided with a plug-in hole, the plug-in hole and the connecting hole are in communication with each other, and the plug-in hole and the connecting hole form a through groove structure.

[0017] Further, the lower end of the top cover is provided with an inclined side wall, and a frustum structure is formed based on the inclined side wall.

[0018] Further, the top cover is nested in the top of the insulating cylinder, and the upper end part of the top cover is in interference fit with the insulating cylinder.

[0019] The utility model provides a low-voltage waterproof plug, sets up a plurality of insulating cylinders to form cylinder array, contains a plurality of electrical connecting rods in the insulating cylinder array, seals and protects a plurality of electrical connecting rods through the insulating cylinder and the sealing cover, improves the plastic package protection air tightness of low-voltage waterproof plug, thereby improves the waterproof performance of low-voltage waterproof plug. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0021] Fig. 1 It is the structure schematic view of low-voltage waterproof plug in the embodiment of the utility model;

[0022] Fig. 2 It is the structure sectional view of low-voltage waterproof plug in the embodiment of the utility model;

[0023] Fig. 3 It is the structure schematic view of cable sleeve seat in the embodiment of the utility model;

[0024] Fig. 4 is an exploded view of the low-voltage waterproof plug in the embodiment of the utility model. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figs. 1 to 4 The embodiment of the utility model provides a low-voltage waterproof plug, the low-voltage waterproof plug includes: cable sleeve seat 1, set in the cable sleeve seat 1 more than one electric connection rod 5 and the insulating sleeve assembly covering the electric connection rod 5, any electric connection rod 5 is provided with at least one mounting station for accommodating electric terminal 7, the cable sleeve seat 1 is fixed on the alloy mounting plate of low-voltage transformer box, one end of the cable sleeve seat 1 is configured as the box body connecting end, and the box body connecting end is arranged in the box body, the other end of the cable sleeve seat 1 is used to connect the electric connection rod 5, so that the low-voltage transformer box outputs cable externally.

[0027] The insulating sleeve assembly includes: sealing cover 4, a plurality of insulating cylinders 2 and a plurality of top covers 3 one-to-one corresponding arranged at the top of a plurality of insulating cylinders 2, a plurality of insulating cylinders 2 are one-to-one corresponding sleeved outside a plurality of electric connection rods 5, and a plurality of insulating cylinders 2 are sequentially spliced to form a cylinder queue, based on a plurality of insulating cylinders 2, the electric connection rod 5 is insulated and protected, to avoid the electric connection rod 5 directly exposed to the external environment, which can effectively improve the insulating protection effect of the insulating sleeve assembly on the electric connection rod 5.

[0028] The middle part of the top cover 3 is provided with a connecting hole, the sealing cover 4 is embedded in the connecting hole of the top cover 3 at the end position of the cylinder queue, by splicing a plurality of insulating cylinders 2, cooperating with the top cover 3 and a plurality of electric connection rods 5, the stability of the splicing cooperation structure of a plurality of insulating cylinders 2 can be improved, the splicing gap between any two adjacent insulating cylinders 2 is reduced, and the splicing sealing property of the insulating cylinder 2 is effectively improved.

[0029] Specifically, the electric connecting rod 5 comprises a variable-diameter screw rod 51 and a conductive rod 52, one end of the variable-diameter screw rod 51 is fixed in the cable bushing seat 1, and the other end of the variable-diameter screw rod 51 is connected with the conductive rod 52. The cable bushing seat 1 is provided with a first connecting screw hole, and one end of the variable-diameter screw rod 51 is screwed into the first connecting screw hole. The variable-diameter screw rod 51 is provided with a mounting station of the electric terminal 7, so as to install the electric terminal 7 of the cable.

[0030] Further, when the low-voltage waterproof plug is provided with a plurality of electric connecting rods 5, the plurality of electric connecting rods 5 comprise one variable-diameter screw rod 51 and a plurality of conductive rods 52, one of the conductive rods 52 is connected with the other end of the variable-diameter screw rod 51, and the plurality of conductive rods 52 are sequentially spliced, thereby expanding the electric terminal mounting position of the low-voltage waterproof plug.

[0031] Further, one end of the cable bushing seat 1 located inside the low-voltage transformer box is provided with an electric socket, the electric socket is electrically connected with the low-voltage transformer box, and the cable bushing seat 1 realizes the electrical connection between the low-voltage transformer box and the cable.

[0032] Specifically, the circumferential side wall of the cable bushing seat 1 is provided with a limiting groove 11, and a waterproof gasket is assembled in the limiting groove 11. The insulating cylinder 2 is sleeved on the cable bushing seat 1, the waterproof gasket is filled in the gap between the insulating cylinder 2 and the cable bushing seat 1, so that the insulating cylinder 2 and the cable bushing seat 1 are formed in interference fit, the tightness of the assembly between the insulating cylinder 2 and the cable bushing seat 1 is improved, and the waterproof performance of the low-voltage waterproof plug is improved.

[0033] Further, the waterproof gasket can be a rubber gasket, which can be a silicone rubber gasket, having good waterproof performance and high temperature resistance, and being able to adapt to the sealing assembly requirement between the insulating cylinder 2 and the cable bushing seat 1. The rubber gasket can also be a fluororubber gasket, having good high temperature resistance and corrosion resistance, and being able to improve the stability and service life of the assembly between the insulating cylinder 2 and the cable bushing seat 1.

[0034] Specifically, the low-voltage waterproof plug further comprises an electric mounting block 6, the electric mounting block 6 is sleeved and fixed on the electric connecting rod 5, and the electric mounting block 6 is provided with a mounting groove 61 for connecting an electric terminal. The electric mounting block 6 is sleeved and fixed on the electric connecting rod 5, and the electric connecting rod 5 and the electric mounting block 6 can conduct electricity, so as to meet the power transmission requirement of the low-voltage transformer box.

[0035] Further, the insulating barrel 2 is provided with an outwardly protruding insulating branch pipe 21, the electrical terminal 7 is arranged in the insulating branch pipe 21, and the insulating branch pipe 21 is integrally formed with the insulating barrel 2, thereby reducing the gap between the insulating branch pipe 21 and the insulating barrel 2, improving the air tightness of the insulating barrel 2, and ensuring that the insulating barrel 2 has good waterproof performance.

[0036] Specifically, the electrical connecting rod 5 is provided with a locking nut 8, one end surface of the locking nut 8 abuts against the electrical mounting block 6, the locking nut 8 is sleeved on the electrical connecting rod 5, and the electrical connecting rod 5 is provided with a threaded structure matched with the locking nut 8. The electrical mounting block 6 can be locked and fixed based on the locking nut 8, the positioning and limiting of the electrical mounting block 6 are realized, and the connection stability of the low-voltage waterproof plug is ensured.

[0037] Specifically, the low-voltage waterproof plug further comprises a locking screw 9, the top end of the electrical connecting rod 5 at the end of the barrel array is provided with a matching hole, the locking screw 9 is sequentially inserted into the connecting hole and the matching hole, and the matching hole of the electrical connecting rod 5 is provided with an internal thread matched with the locking screw 9. The locking screw 9 is threadedly connected in the matching hole of the electrical connecting rod 5, so that the locking screw 9 can realize the locking and matching of the top cover 3 and the electrical connecting rod 5.

[0038] Specifically, the middle part of the top cover 3 is provided with a plug-in hole, the plug-in hole and the connecting hole are in communication with each other, and the plug-in hole and the connecting hole form a through groove structure. The plug-in hole is used for accommodating the electrical connecting rod 5, so that the top end of the electrical connecting rod 5 can be inserted into the plug-in hole, realizing the sleeved matching with the top cover 3. The locking screw 9 can realize the locking and matching between the electrical connecting rod 5 and the top cover 3.

[0039] Specifically, the lower end of the top cover 3 is provided with an inclined side wall, and a frustum structure is formed based on the inclined side wall. The frustum structure can improve the convenience of the matching between the top cover 3 and the insulating barrel 2, so as to embed the top cover 3 in the insulating barrel 2.

[0040] Further, the top cover 3 is nested in the top of the insulating barrel 2, and the upper end part of the top cover 3 is in interference fit with the insulating barrel 2. Based on the interference fit between the top cover 3 and the insulating barrel 2, the air tightness of the matching structure between the top cover 3 and the insulating barrel 2 can be improved, thereby improving the waterproof performance between the top cover 3 and the insulating barrel 2.

[0041] Specifically, based on the locking screw 9 for locking and fixing the top cover 3 and the electric connecting rod 5, cooperating with the interference fit between the top cover 3 and the insulating cylinder 2, the tightness and reliability of the cooperation between the insulating cylinder 2, the electric connecting rod 5 and the top cover 3 can be improved, thereby meeting the plastic sealing waterproof protection requirement of the cable connection structure of the low-voltage transformer box.

[0042] The utility model embodiment provides a kind of low-pressure waterproof plug, setting several insulating cylinders 2 form cylinder queue, several electric connecting rods 5 are contained in insulating cylinder 2 queue, several electric connecting rods 5 are sealed and protected by insulating cylinder 2 and sealing cover 4, improve the plastic sealing protection air tightness of low-pressure waterproof plug, to improve the waterproof performance of low-pressure waterproof plug.

[0043] In addition, the low-pressure waterproof plug provided by the embodiments of the utility model is described in detail above, the principle and implementation mode of the utility model are described by using specific examples in this paper, and the above embodiment is only used to help understand the method and core idea of the utility model;Meanwhile, for those skilled in the art, according to the idea of the utility model, the specific implementation mode and application range will be changed, and the above description should not be understood as the limitation of the utility model.

Claims

1. A low voltage waterproof plug, characterized in that, The low-voltage waterproof plug comprises a cable sleeve seat, one or more electric connection rods arranged on the cable sleeve seat, and an insulation sleeve assembly covering the electric connection rods, and at least one mounting station for accommodating an electric terminal is arranged on each electric connection rod; The insulation sleeve assembly comprises a sealing cover, a plurality of insulation cylinders, and a plurality of top covers corresponding to the plurality of insulation cylinders; The plurality of insulation cylinders are correspondingly sleeved outside the plurality of electric connection rods, and the plurality of insulation cylinders are sequentially spliced to form a cylinder queue. The middle part of the top cover is provided with a connecting hole, and the sealing cover is embedded in the connecting hole of the top cover at the end position of the cylinder queue.

2. The low voltage waterproof plug of claim 1, wherein, The electric connection rod comprises a variable-diameter screw rod and a conductive rod; One end of the variable-diameter screw rod is fixed in the cable sleeve seat, and the other end of the variable-diameter screw rod is connected with the conductive rod.

3. The low voltage waterproof plug of claim 1, wherein, The circumferential side wall of the cable sleeve seat is provided with a limiting groove, and a waterproof gasket is assembled in the limiting groove.

4. The low voltage waterproof plug of claim 1, wherein, The low-voltage waterproof plug further comprises an electric installation block, the electric installation block is sleeved and fixed on the electric connection rod, and the electric installation block is provided with a mounting groove for accommodating an electric terminal.

5. The low voltage waterproof plug of claim 4, wherein, The insulation cylinder is provided with an outwardly protruding insulation branch pipe, and the electric terminal is arranged in the insulation branch pipe.

6. The low voltage waterproof plug of claim 4, wherein, A locking nut is arranged on the electric connection rod, and one end face of the locking nut abuts against the electric installation block.

7. The low voltage waterproof plug of claim 1, wherein, The low-voltage waterproof plug further comprises a locking screw, and the top end of the electric connection rod at the end of the cylinder queue is provided with a matching hole. The locking screw is sequentially inserted into the connecting hole and the matching hole.

8. The low voltage waterproof plug of claim 1, wherein, The middle part of the top cover is provided with an insertion hole, the insertion hole and the connecting hole are in communication with each other, and the insertion hole and the connecting hole form a through groove structure in cooperation.

9. The low voltage waterproof plug of claim 1, wherein, The lower end of the top cover is provided with an inclined side wall, and a frustum structure is formed based on the inclined side wall.

10. The low voltage waterproof plug of claim 1, wherein, The top cover is nested in the top of the insulation cylinder, and the upper end part of the top cover is in interference fit with the insulation cylinder.

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