CN216733923U - Charging gun capable of reliably positioning tail cable - Google Patents

Abstract

The utility model discloses a charging gun which can reliably position a tail cable, comprising a hollow shell, wherein the front end of the hollow shell is provided with a charging plug, and a connecting terminal in the hollow shell is connected with the cable; the charging plug fixes the cable through a cable fixing seat arranged in the hollow shell, and sealant for wrapping the wiring terminal is encapsulated in the cable fixing seat; the method is characterized in that: the cable anti-rotation mechanism is arranged at the tail end of the hollow shell and comprises a cable sealing head connected to the tail end of the hollow shell and a riveting ring riveted on the cable, and the anti-rotation structure is arranged on the outer periphery of the riveting ring and matched with the inner periphery of the cable sealing head; the cable sealing head is inserted into and secured to the hollow housing tail end by a locking assembly that includes a plurality of rivets extending transversely therethrough and connecting the cable sealing head and the hollow housing. Therefore, IP67 at the strong current position of the wiring terminal in the charging gun is waterproof, safety is improved, meanwhile, the tail of the charging gun can effectively lock the cable, unnecessary torsion is avoided, and damage to the cable is avoided.

Description

Charging gun capable of reliably positioning tail cable

Technical Field

The utility model relates to a rifle that charges especially relates to a rifle that charges reliable to afterbody cable location.

Background

Along with the continuous maturity of new forms of energy electric automobile technique, huge development potential has been brought for filling electric pile and charging gun, along with filling the extensive spreading out of electric pile, waterproof performance and the reliability requirement of charging gun are higher and higher, current charging gun has multiple form, each advantage and disadvantage, the waterproof of present charging terminal department has comparatively ripe, the risk of taking place the high voltage electric shock is less, but take the rifle that charges of button and lock floodgate, because its structural specificity, button and lock floodgate need move, the waterproof of button and lock floodgate department is the design difficulty.

Meanwhile, the tail of the charging gun is difficult to completely meet the requirements of pulling prevention, retraction prevention, torsion prevention and water prevention of the cable due to the fact that attractive design such as no screws is achieved. Charging guns on the market such as patent number CN202120460302.2 charging gun are difficult to reliably prevent that water from getting into button and lock floodgate department, generally can reserve the hole of leaking and make things convenient for water to discharge, therefore charging gun when using in winter, appear easily charging gun button or lock floodgate department and appear freezing, cause the unable normal use's of charging gun the condition.

For example, the inside of the charging gun of the patent No. CN206432731U can not be filled with water, but the water filled at the key can still be frozen to affect the key pressing. For example, the tail part of the patent No. CN 111786161A can satisfy four functions of axial pulling, inward contraction and twisting and water prevention, but the number of parts is large, the assembly is still complex, different current cables cannot be compatible, and the problem that water is frozen when entering a key and a lock brake is not considered.

In summary, the existing products have the following problems:

1. at present, the existing design is generally only waterproof aiming at a crimping area, other areas have no waterproof function, and the condition that a lock is frozen or a key is frozen is often caused. The existing charging gun product is mainly divided into a glue filling product and a non-glue filling product, the glue filling product is usually an integral glue filling scheme, although the reliability is higher, the cost is usually increased sharply due to the higher glue consumption, the glue curing time is also longer, and the batch size and the cost are influenced.

2. Because the rifle tail that charges need satisfy simultaneously that the axial is pulled out to contract inwards and is twistd reverse four waterproof functions, the comparatively complicacy that often can design under the prior art scheme of not encapsulating, and some technical scheme often can lead to the screw to expose the whole aesthetic feeling that influences the rifle that charges, and the charging wire of different line footpaths often can not be compatible to same rifle molding that charges moreover, need the die sinking again and lead to the cost to rise.

Disclosure of Invention

An object of the utility model is to overcome the above problem that prior art exists, provide a charge rifle reliable to afterbody cable location.

In order to realize the purpose of the utility model, the concrete scheme is as follows: a charging gun capable of reliably positioning a tail cable comprises a hollow shell, wherein a charging plug is arranged at the front end of the hollow shell, and the inner side of the charging plug is connected with the cable through a wiring terminal; meanwhile, the charging plug fixes the cable through a cable fixing seat arranged on the inner side of the hollow shell, and sealant for wrapping the wiring terminal is locally encapsulated in the cable fixing seat; the method is characterized in that: the cable anti-rotation mechanism is arranged at the tail end of the hollow shell and comprises a cable sealing head connected to the tail end of the hollow shell and a riveting ring riveted on the cable, and the anti-rotation structure is arranged on the outer periphery of the riveting ring and matched with the inner periphery of the cable sealing head; simultaneously, the cable sealing head is inserted into the tail end of the hollow shell and is fixed to the tail end of the hollow shell through a locking assembly, and the locking assembly comprises a plurality of rivets which transversely penetrate through and are connected with the cable sealing head and the hollow shell.

Furthermore, in the utility model, the upper end of the riveting ring forms a riveting area, the lower end of the riveting ring forms a matching area, the diameter of the matching area is larger than that of the riveting area, the riveting area is riveted and fixed on the cable, and the matching area is provided with the rotation-proof structure matched with the inner periphery of the cable sealing head; meanwhile, an axial clamping structure matched with the matching area of the riveting ring is arranged on the cable sealing head to limit the axial movement of the riveting ring.

Still further, in the present invention, the cable sealing head includes a cylindrical sleeve body, an inverted cone tail sleeve sleeved on the cable is formed at the rear end of the cylindrical sleeve body, a plurality of circumferentially distributed plastic positioning pieces are formed at the front end of the cylindrical sleeve body, and the inner peripheries of the plastic positioning pieces are matched with the anti-rotation structure at the outer periphery of the riveting ring; the inboard of cylinder cover body is provided with interior waterproof construction, and the outside of cylinder cover body is provided with outer waterproof construction, is provided with a plurality of confessions on the cylinder cover body simultaneously the rivet passes the rotation-proof hole of location.

In practical implementation, the rotation preventing structure on the rivet pressing ring mentioned above may be a regular polygon outer contour structure formed on the outer periphery of the rivet pressing ring, and the inner periphery of the cable sealing head (for example, the inner periphery of the plastic positioning plate) is provided with a regular polygon inner contour structure matched with the inner periphery of the cable sealing head; or the anti-rotation structure can also be a plurality of convex keys formed on the outer periphery of the riveting ring, and a plurality of concave keys matched with the inner periphery of the cable sealing head (such as the inner periphery of the plastic positioning sheet) are arranged on the inner periphery of the cable sealing head.

Still further, in the utility model discloses in the front end of cylinder cover body all takes shape between each adjacent plastic spacer and has prevented pulling out the buckle, and these prevent pulling out spacing trip inwards that is equipped with on the buckle and constitute with the cooperation of cylinder cover body preceding terminal surface axial card ends the structure, supplies the cooperation district embedding of riveting ring to this restriction riveting ring axial activity. Consequently the utility model provides a cavity casing can't be pulled out from front end and rear end to the cable, has played splendid axial positioning effect to the cable. Meanwhile, in order to achieve the purposes of simplifying design and utilizing parts, the inner periphery of an annular structure formed by the pull-out preventing buckles and the plastic positioning sheets is matched with the anti-rotation structure on the outer periphery of the riveting ring.

Still further, in the utility model, the plastic positioning plate is more than three, and the circumference is equidistant.

Still further, in the utility model discloses in interior waterproof construction is a plurality of interior orientation folds, outer waterproof construction is a plurality of outer orientation folds, and the sealed overhead interior outer waterproof construction of cable can effectually prevent that outside steam from invading in the cavity casing from the rifle tail that charges.

Furthermore, the locking assembly of the utility model also comprises a hoop which comprises a left rear cover and a right rear cover which are folded and buckled at the tail end of the hollow shell, wherein the left rear cover is internally provided with a guide post, and the rivet passes through the guide post and is connected and fixed with a connecting hole on the right rear cover; the tail end of the hollow shell is provided with a fixing hole for a rivet to penetrate through at a position corresponding to the guide post, and the position of the fixing hole corresponds to the anti-rotation hole.

Adopt the utility model discloses technical scheme's advantage as follows:

1. through the sealed glue of local embedment parcel binding post in the cable fixing base, the IP67 of the interior binding post forceful electric power department of rifle that realizes charging is waterproof, has improved safety in utilization greatly, protection user life safety.

2. The rifle afterbody charges can carry out effectual locking to the cable through the cable sealing head of special design and the cooperation structure of riveting ring, avoids appearing the unnecessary torsion of cable, can not cause the cable to damage. And above-mentioned cooperation structure has played splendid axial positioning effect to the cable simultaneously for the cable can't pull out the cavity casing from front end and rear end, has further ensured the safety of cable.

3. The utility model discloses the cooperation structural design compactness of well cable seal head and riveting ring, and the assembly is simple, has very high practicality.

4. Possess the waterproof effect of preferred, can effectively prevent outside steam invasion.

5. The riveting ring can be compatible with the diameters of different cables, the cables are bound, the cables are positioned by the aid of a matching structure of the riveting ring and the cable sealing head, no screw is exposed at the tail of the charging gun, the charging gun is attractive in whole, and design universality is high.

Objects, advantages and features of the present invention will be illustrated and explained by the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.

Drawings

Fig. 1 is an exploded configuration schematic view of a charging gun (cable not shown).

Fig. 2 is a schematic sectional configuration view of the charging gun.

Fig. 3 is an enlarged view of the clinch ring alone.

FIG. 4 is an enlarged side view of the cable sealing head alone.

Fig. 5 is an enlarged front side view of the cable sealing head alone.

The meaning of the reference symbols in the figures is as follows:

1. a hollow housing; 2. a charging plug; 3. a cable; 4. sealing glue; 5. riveting a pressure ring; 6. a cable sealing head; 7. riveting; 8. riveting the nip; 9. a mating zone; 10. an inverted conical tail sleeve; 11. plastic positioning sheets; 12. the buckle is prevented from being pulled out; 13. an inner waterproof structure; 14. an outer waterproof structure; 15. an anti-rotation hole; 16. a left rear cover; 17. a right rear cover; 18. a guide post; 19. a fixing hole; 20. a cable fixing seat; 21. a limiting clamping hook; 22. a cylindrical sleeve body.

Detailed Description

Example (b): as shown in fig. 1 to 5, the specific embodiment of the charging gun for reliably positioning the tail cable according to the present invention has a hollow housing 1 as in the conventional art, a charging plug 2 is disposed at the front end of the hollow housing, and the inner side of the charging plug 2 is connected to a cable 3 through a connection terminal; simultaneously charging plug 2 is through locating the fixed cable 3 of the inboard cable fixing base 20 of cavity casing 1. In order to improve the waterproof effect, the sealing glue 4 wrapping the wiring terminal is locally encapsulated in the cable fixing seat 20.

The utility model discloses a core improves and lies in: the tail end of the hollow shell 1 is provided with a cable anti-rotation mechanism, so that the weak stage of a cable joint can be effectively protected, and unnecessary torsion in the use period is avoided. The cable rotation-preventing mechanism is composed of a cable sealing head 6 connected to the tail end of the hollow shell 1, a riveting ring 5 riveted on the cable 3 and a locking assembly. The outer periphery of the riveting ring 5 is provided with an anti-rotation structure matched with the inner periphery of the cable sealing head 6; simultaneously cable sealing head 6 inserts the tail end of cavity casing 1 in order to avoid outside steam to invade to, in order to realize effectual locking to cable sealing head 6, avoid itself to twist reverse for cavity casing 1 appears, cable sealing head 6 passes through locking Assembly to be fixed to the tail end of cavity casing 1. The locking assembly in this embodiment is formed by a clamp and two rivets 7 which extend transversely through and connect the cable sealing head 6 to the hollow housing 1.

In this embodiment, the upper end of the riveting ring 5 forms a riveting area 8, specifically, as shown in fig. 3, the lower end of the riveting ring 5 forms a matching area 9, the diameter of the matching area 9 is larger than that of the riveting area 8, the riveting area 8 is fixed on the cable 3 by riveting, and the matching area 9 is provided with the rotation-preventing structure which is matched with the inner periphery of the cable sealing head 6. In the embodiment, the anti-rotation structure is a regular hexagon outer contour structure formed on the outer periphery of the rivet pressing ring 5, and obviously, the inner periphery of the cable sealing head 6 also needs to be provided with a regular polygon inner contour structure matched with the regular hexagon outer contour structure. Meanwhile, an axial clamping structure matched with the matching area 9 of the riveting ring 5 is arranged on the cable sealing head 6 to limit the axial movement of the riveting ring 5.

Further see, in order to realize the guide of wearing to establish to cable 3, and satisfy effective spacing to riveting ring 5 and cable 3 above that, the utility model provides a cable seals head 6 adopts following design: the anti-pulling-out type riveting device is provided with a cylindrical sleeve body, an inverted cone tail sleeve 10 sleeved on a cable 3 is formed at the rear end of the cylindrical sleeve body, as shown in fig. 4, three plastic positioning pieces 11 distributed at equal intervals around the circumference are formed at the front end of the cylindrical sleeve body, pull-out preventing buckles 12 (3 in total) are further formed at the front end of the cylindrical sleeve body between every two adjacent plastic positioning pieces 11, inward limiting clamping hooks 21 arranged on the pull-out preventing buckles 12 are matched with the front end face of the cylindrical sleeve body to form an axial clamping structure, and a matching area 9 of a riveting ring 5 is embedded into the axial clamping structure and is specifically shown in fig. 2 so as to limit the axial movement of the riveting ring 5.

Meanwhile, the inner periphery of the annular structure formed by the pulling-out preventing buckles 12 and the plastic positioning pieces 11 is a regular hexagon contour and is just matched with the regular hexagon contour of the outer periphery of the riveting ring 5, and the function of preventing the riveting ring 5 and the cable 3 on the riveting ring from rotating is achieved.

In order to avoid possible tolerance gaps between the inside of the cable sealing head 6 and the cable 3, and between the outside of the cable sealing head 6 and the tail end of the hollow housing 1, the inside of the cylindrical sleeve body is provided with an inner waterproof structure 13, while the outside of the cylindrical sleeve body is provided with an outer waterproof structure 14. From this, interior waterproof construction 13 and the cooperation of cable 3 realize effectual inner circle waterproof, and outer waterproof construction 14 realizes that the outer lane is waterproof with the hole cooperation of cavity casing 1 tail end. In order to increase the contact area and have a proper elastic deformation range, the tolerance gap of the assembly can be filled, the inner waterproof structure 13 is a plurality of inner-oriented folds, and the outer waterproof structure 14 is a plurality of outer-oriented folds. And in order to facilitate the locking of the cable sealing head 6 on the hollow shell 1, the cylindrical sleeve body is provided with anti-rotation holes 15 for the two rivets 7 to pass through for positioning respectively.

Still further, in order to achieve effective locking of the cable sealing head 6 and to make proper adjustment during assembly to ensure smooth insertion of the rivet 7, the clip of the locking assembly includes a left rear cover 16 and a right rear cover 17 which are folded and fastened to the rear end of the hollow housing 1, the left rear cover 16 is inwardly provided with an upper guide post 18 and a lower guide post 18, and the rivet 7 is fixed to the connecting hole of the right rear cover 17 through the guide posts 18 as shown in fig. 1. The tail end of the hollow shell 1 corresponding to the position of the guide column 18 is provided with a fixing hole 19 for the corresponding rivet 7 to pass through, and the position of the fixing hole 19 corresponds to the anti-rotation hole 15 on the cable sealing head 6.

Can find out through foretell characters expression and combine the figure, adopt the utility model discloses there is following advantage afterwards:

1. through local embedment parcel binding post's sealed glue 4 in the cable fixing base 20, the IP67 that realizes the interior binding post forceful electric power department of rifle that charges is waterproof, has improved safety in utilization greatly, protection user life safety.

2. The rifle afterbody of charging can carry out effectual locking to cable 3 through the sealed head 6 of the cable of special design and the cooperation structure of riveting ring 5, avoids appearing 3 unnecessary twists reverse of cable, can not cause 3 damages of cable. And above-mentioned cooperation structure has played splendid axial positioning effect to cable 3 simultaneously for cable 3 can't pull out hollow shell 1 from front end and rear end, has further ensured the safety of cable.

3. The utility model discloses the sealed head of well cable 6 and riveting ring 5's cooperation structural design is compact, and the assembly is simple, has very high practicality.

4. Possess the waterproof effect of preferred, can effectively prevent outside steam invasion.

5. The riveting ring 5 can be compatible with the diameters of different cables 3, the cables 3 are bound, and the matching structure of the riveting ring and the cable sealing head 6 is used for positioning the cables 3, so that no screw is exposed at the tail part of the charging gun, the whole charging gun is attractive, and the design universality is high.

Of course, the above is only a specific application example of the present invention, and the protection scope of the present invention is not limited at all. In addition to the above embodiments, other embodiments of the present invention are also possible. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention as claimed.

Claims (8)

1. A charging gun capable of reliably positioning a tail cable comprises a hollow shell (1), wherein a charging plug (2) is arranged at the front end of the hollow shell, and the inner side of the charging plug (2) is connected with a cable (3) through a wiring terminal; meanwhile, the charging plug (2) fixes the cable (3) through a cable fixing seat (20) arranged on the inner side of the hollow shell (1), and a sealant (4) wrapping the wiring terminal is locally encapsulated in the cable fixing seat (20); the method is characterized in that: the cable anti-rotation mechanism is arranged at the tail end of the hollow shell (1) and comprises a cable sealing head (6) connected to the tail end of the hollow shell (1) and a riveting ring (5) riveted on the cable (3), and an anti-rotation structure is arranged on the periphery of the riveting ring (5) and matched with the inner periphery of the cable sealing head (6); meanwhile, the cable sealing head (6) is inserted into the tail end of the hollow shell (1) and is fixed to the tail end of the hollow shell (1) through a locking assembly, and the locking assembly comprises a plurality of rivets (7) which transversely penetrate through and are connected with the cable sealing head (6) and the hollow shell (1).

2. A charging gun for secure positioning of a trailing cable according to claim 1, characterized in that: the upper end of the riveting ring (5) forms a riveting area (8), the lower end of the riveting ring (5) forms a matching area (9), the diameter of the matching area (9) is larger than that of the riveting area (8), the riveting area (8) is fixed on the cable (3) in a riveting mode, and the matching area (9) is provided with an anti-rotation structure which is matched with the inner periphery of the cable sealing head (6); and meanwhile, an axial clamping structure matched with a matching area (9) of the riveting ring (5) is arranged on the cable sealing head (6) to limit the axial movement of the riveting ring (5).

3. A charging gun for reliable positioning of a trailing cable according to claim 2, wherein: the cable sealing head (6) comprises a cylindrical sleeve body, an inverted conical tail sleeve (10) sleeved on the cable (3) is formed at the rear end of the cylindrical sleeve body, a plurality of plastic positioning pieces (11) distributed circumferentially are formed at the front end of the cylindrical sleeve body, and the inner peripheries of the plastic positioning pieces (11) are matched with the anti-rotation structure on the outer periphery of the riveting ring (5); the inner side of the cylindrical sleeve body is provided with an inner waterproof structure (13), the outer side of the cylindrical sleeve body is provided with an outer waterproof structure (14), and meanwhile the cylindrical sleeve body is provided with a plurality of anti-rotation holes (15) for the rivets (7) to pass through for positioning.

4. A charging gun for reliably positioning a tail cable according to claim 1, 2 or 3, characterized in that the anti-rotation structure is a regular polygon outer contour structure formed on the outer circumference of the riveting ring (5), and the inner circumference of the cable sealing head (6) is provided with a regular polygon inner contour structure matched with the regular polygon outer contour structure; or the anti-rotation structure is a plurality of convex keys formed on the periphery of the riveting ring (5), and a plurality of concave keys matched with the inner periphery of the cable sealing head (6) are arranged on the inner periphery of the cable sealing head.

5. The charging gun reliable in positioning for the tail cable according to claim 3 is characterized in that pull-out preventing buckles (12) are formed at the front ends of the cylindrical sleeve bodies between the adjacent plastic positioning pieces (11), inward limiting clamping hooks (21) arranged on the pull-out preventing buckles (12) are matched with the front end faces of the cylindrical sleeve bodies to form the axial clamping structure, and a matching area (9) of the riveting ring (5) is embedded into the axial clamping structure to limit the axial movement of the riveting ring (5); meanwhile, the inner periphery of an annular structure formed by the pull-out preventing buckles (12) and the plastic positioning sheets (11) in a surrounding mode is matched with the anti-rotation structure on the outer periphery of the riveting ring (5).

6. A charging gun for secure positioning of a trailing cable according to claim 3, characterized in that: the plastic positioning pieces (11) are more than three and distributed at equal intervals around the circumference.

7. A charging gun for secure positioning of a trailing cable according to claim 3, characterized in that: the inner waterproof structure (13) is a plurality of inner orientation folds, and the outer waterproof structure (14) is a plurality of outer orientation folds.

8. A charging gun for secure positioning of a trailing cable according to claim 3, characterized in that: the locking assembly further comprises a hoop which comprises a left rear cover (16) and a right rear cover (17) which are folded and buckled at the tail end of the hollow shell (1), a guide post (18) is arranged inwards on the left rear cover (16), and the rivet (7) penetrates through the guide post (18) to be connected and fixed with a connecting hole in the right rear cover (17); and a fixing hole (19) for the rivet (7) to penetrate through is formed in the position, corresponding to the guide column (18), of the tail end of the hollow shell (1), and the position of the fixing hole (19) corresponds to the anti-rotation hole (15) at the same time.

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