CN111430974B

CN111430974B - Waterproof connector with protective cover

Info

Publication number: CN111430974B
Application number: CN201910022005.7A
Authority: CN
Inventors: 赖柄源; 赖启益; 张忠仁; 苏家民
Original assignee: Avertronics Inc
Current assignee: Avertronics Inc
Priority date: 2019-01-10
Filing date: 2019-01-10
Publication date: 2021-03-30
Anticipated expiration: 2039-01-10
Also published as: CN111430974A

Abstract

The invention provides a waterproof connector with a protective cover, which comprises: a connector comprises a linking pipe, a locking seat and an inserting pipe which are formed in sequence, wherein the locking seat is provided with a tightening groove which is concaved towards the direction of the inserting pipe, the outer surface of the inserting pipe is concaved with a dodging groove, a protective cover is a linking belt and is connected with a gasket and a cover body, the gasket is sleeved on the inserting pipe and is arranged at the tightening groove, so that torsion generated during assembling and locking can not cause distortion and deformation of the gasket, further the waterproof function of the gasket can not be lost, the linking belt is contained in the dodging groove and is hidden, the penetrating of the inserting pipe is not influenced, the assembling interference can not be formed, the cover body clamps and fixes the inserting pipe by the outer ring part and the inner ring part in an inner and outer shape, and therefore the dustproof function is achieved.

Description

Waterproof connector with protective cover

Technical Field

The present invention relates to a connector protection structure, and more particularly, to a waterproof connector having a protection cover and both waterproof and dustproof functions.

Background

A conventional protective cover structure of a connector, as shown in fig. 10, includes a connector 40, a protective cover 50 and an electrical device 60, the connector 40 is sequentially formed with a socket 41, a fixing plate 42 and a connecting end 43, the outer surface of the socket 41 is annularly provided with a plurality of grooves 411, the fixing plate 42 is provided with a plurality of through holes 421, and a bolt 44 is respectively penetrated through the through holes 421, the protective cover 50 is connected with a spacer 52 at one end of a connecting band 51, and is connected with a cover 53 at the other end, the spacer 52 is provided with a through hole 521, and is sleeved on the connecting end 43 by the through hole 521, the spacer 52 is provided with a plurality of circular holes 522 corresponding to the through holes 421, and the connecting band 51 is formed with a concave groove 511 at the position connected with the spacer 52, so that the connecting band 51 can elastically deform at the concave groove 511 to cover the cover 53 on the socket 41, and the cover 53 is convexly provided with a convex ring 531 at the inner edge, the protruding ring 531 is engaged with the groove 411 of the socket 41 to form a covering and dust-proof function, the connector 40 is inserted through the locking hole 61 of the electrical apparatus 60 by the connecting end 43, the gasket 52 of the protective cover 50 is clamped between the fixing plate 42 and the electrical apparatus 60, and then the connector 40 and the protective cover 50 are fixed on the housing of the electrical apparatus 60 by the bolt 44, although the protective cover 50 has the function of covering the connector 40 to achieve dust-proof, it is not difficult to find that the existing structure has some disadvantages, the main reason is as follows:

the gasket 52 is only sleeved on the connecting end 43 of the connector 40 through the through hole 521, and the bolt 44 penetrates through the circular hole 522 to form a fixed position of the connector 40 and the gasket 52, when the housing of the electrical apparatus 60 is locked, the gasket 52 is easy to shift, and is clamped between the fixing plate 42 and the housing of the electrical apparatus 60 to generate distortion deformation due to the locking of the bolt 44, so that the gasket 52 and the housing of the electrical apparatus 60 form a non-flat surface contact, thereby affecting the waterproof effect of the gasket 52, and a gap formed between the gasket 52 and the housing of the electrical apparatus 60 arranged outside is also easy to accumulate water vapor and permeate into the electrical apparatus 60.

Secondly, the connector 40 is elastically clamped on the electrical device 60 only by the gasket 52, if the locking force is insufficient, the connector 40 is easy to loosen, if the locking force is too large, the twisting amount and the extrusion deformation amount of the gasket 52 will increase, the light causes uncertainty of locking degree and waterproof effect, the gasket 52 can be seriously damaged, and the durability of the gasket 52 can be reduced by excessive extrusion.

Thirdly, the inner edge of the cover 53 is tightly sleeved with the outer edge of the socket 41, so that air in the cover 53 is difficult to discharge, the cover 53 generates an air chamber to cause resistance during covering, and the cover is difficult to cover, the cover 53 does not limit the angle position for covering the socket 41, therefore, the connecting band 51 is subjected to bending and twisting deformation at the same time, the connecting band 51 forms the thinnest position at the concave groove 511, and the connecting band 51 is easy to twist off from the concave groove 511, so that the connecting band 51 has the defect of insufficient durability.

In view of the above, the present inventors have made various experiments on the manufacturing, development and design of related products for many years, and have made detailed design and careful evaluation to achieve the above objectives, and finally have obtained a practical invention.

Disclosure of Invention

The present invention is directed to a waterproof connector with a protective cover, which overcomes the above-mentioned disadvantages of the prior art.

A waterproof connector having a protective cover, comprising:

a connector, the connector includes a linking tube, a locking seat and a plugging tube formed in sequence, a plurality of pins are inserted between the linking tube and the plugging tube, a convex ring is formed on the outer edge of the locking seat in a plate shape, a tightening groove facing the plugging tube is formed by the convex ring, an accommodating space is formed in the inner concave of the plugging tube, the pins are convexly arranged in the accommodating space, the plugging tube can be inserted and conducted through the pins to form power supply and communication functions, an evasion groove is formed in the outer surface of the plugging tube in the direction of the accommodating space, and a convex strip is formed on the inner surface of the plugging tube due to the formation of the evasion groove, and the evasion groove extends from one end of the plugging tube close to the tightening groove to one end of the plugging tube far away from the tightening groove along the axial direction of the plugging tube; and

a protective cover, which is a linking belt connected with a gasket and a cover body, the gasket is provided with a through hole for sleeving the splicing pipe, the gasket is arranged at the tightening groove of the locking seat, and the gasket protrudes out of the tightening groove and can be elastically extruded to form a waterproof effect, the linking belt is formed at the inner edge of the through hole and is accommodated in the dodging groove, so that the linking belt is hidden without influencing the outward penetration of the splicing pipe, the cover body is formed with an outer ring portion and an inner ring portion, and the depth of the outer ring portion is greater than the depth of the inner ring portion, the cover body is sleeved on the inserting pipe by the outer ring part, and the inner ring part is inserted into the inserting pipe, so that the outer ring part and the inner ring part are clamped and fixed with the inserting pipe, an inward-contracting plane is formed on the inner ring part and avoids the convex strip, and the convex strip and the inward-contracting plane are matched to enable the cover body and the plug-in pipe to relatively prevent rotation.

In the waterproof connector with the protective cover, a plurality of screw holes are formed on the surface of the tightening groove of the locking seat, and a plurality of through holes are formed on the gasket of the protective cover corresponding to the screw holes.

In the waterproof connector with the protective cover, a plurality of protruding blocks are arranged on the locking seat in a protruding manner in a direction towards the link pipe, and a metal screw is wrapped and fixed on each protruding block, and the screw hole is formed by the metal screw.

The waterproof connector with the protective cover is characterized in that a ring groove is formed in the connector in a concave manner between the tightening groove and the inserting pipe, a ring is arranged on the gasket in a protruding manner on the periphery of the through hole, and the ring is accommodated in the ring groove.

The waterproof connector with the protective cover is characterized in that a retaining wall is convexly arranged on the bottom surface of the accommodating space on the connector, the retaining wall is arranged between the pins at intervals, and the pins are blocked between the pins by the height of the retaining wall, so that the pins cannot be contacted with each other when toppling.

The waterproof connector with the protective cover is characterized in that the cover body is provided with a plurality of clamping strips which are arranged on the inner surface of the outer ring part in a protruding mode, the clamping strips abut against the plug pipe, and the contact area between the outer ring part and the plug pipe is reduced through the clamping strips.

In the waterproof connector with the protective cover, an inclined surface is formed on the clamping strip at a position adjacent to the outer ring part, and the cover body is guided by the inclined surface to be sleeved into the inserting pipe.

The waterproof connector with the protective cover as described above, wherein an arc concave portion is formed at the middle section of the link belt, and the arc concave portion controls the elastic deformation position of the link belt.

In the waterproof connector with the protective cover, the inner wall surface of the insertion pipe is convexly provided with a limit strip, and the inner ring part of the cover body is concavely provided with a limit groove, so that the cover body can accommodate the limit strip by the limit groove, thereby keeping the fixed covering position of the cover body and the insertion pipe.

The waterproof connector with the protective cover is characterized in that the outer ring part of the cover body is provided with a slant opening, and one end of the slant opening, which is relatively low, is located at one end of the cover body, which is connected with the link belt.

Compared with the prior art, the invention has the following advantages:

the waterproof connector with the protective cover is characterized in that the protective cover is sleeved on the plug-in pipe of the connector through the gasket, the gasket is flatly accommodated in the tightening groove of the locking seat, the convex ring of the locking seat is arranged on the outer periphery of the gasket in an enclosing manner, the assembling position of the gasket is effectively limited, the stability of the gasket in the locking seat is improved, the link belt can be accommodated in the dodging groove of the plug-in pipe, the link belt does not exceed the circumferential range of the plug-in pipe, the plug-in pipe of the connector can penetrate through the round hole from the inside of the electrical apparatus outwards, the dodging groove is used for accommodating the link belt, the assembling interference cannot be formed, the cover body is smoothly arranged on the outside of the electrical apparatus, and the gasket is clamped in the inside of the electrical apparatus, so that the waterproof and dustproof functions are achieved.

In the waterproof connector with the protective cover, the gasket of the protective cover is extruded by the locking seat and the shell of the electrical device, the part of the gasket protruding out of the convex ring can be elastically deformed to provide enough waterproof effect for the round hole, and the ring of the gasket can be further pressed to be tightly pressed on the ring groove by matching with the ring of the gasket, so that the waterproof effect between the connector and the electrical device is effectively improved.

The waterproof connector with the protective cover has the foolproof function due to the fact that the limiting groove and the limiting strip are arranged in an opposite mode, the inward-contracting plane and the convex strip are arranged in an opposite mode, meanwhile, the anti-rotation effect of the cover body when the plug-in pipe is covered by the cover body is achieved, the cover body can be covered on the plug-in pipe and cannot form torsional deformation of the link belt, only bending deformation of the arc concave portion of the link belt can be formed, and therefore the deformation direction, the deformation amount and the deformation portion of the link belt are effectively controlled, and the service life of the link belt is greatly prolonged.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:

fig. 1 is a perspective view of the present invention.

Fig. 2 is an exploded perspective view of the present invention.

Fig. 3 is a schematic view of the state of use of the present invention.

Fig. 4 is a cross-sectional view of the present invention.

Fig. 5 is a schematic diagram of the closing operation of the present invention.

Fig. 6 is a cross-sectional view of the present invention in a closed state.

Fig. 7 is a cross-sectional view of the invention at the location of the cross-section in fig. 6.

Fig. 8 is a cross-sectional view of another embodiment of the present invention.

Fig. 9 is a cross-sectional view of another embodiment of the present invention in a closed state.

Fig. 10 is a perspective exploded view of the prior art.

The reference numbers illustrate:

(present invention)

10. A connector;

11. a link pipe;

12. a locking seat;

121. a convex ring;

122. a tightening groove;

123. a bump;

124. a ring groove;

13. inserting a pipe;

131. an accommodating space;

132. retaining walls;

133. an evasion groove;

134. a convex strip;

135. a limiting strip;

14. a pin;

15. a metal screw;

151. a screw hole;

20. a protective cover;

21. a linking belt;

211. an arc recess;

22. a gasket;

221. a through hole;

222. a loop;

223. perforating;

23. a cover body;

24. an outer ring portion;

241. a clamping strip;

242. a bevel;

243. placing the opening obliquely;

25. an inner ring portion;

251. a limiting groove;

252. retracting the plane;

30. an electrical device;

31. a circular hole;

32. a bolt;

(Prior Art)

40. A connector;

41. a socket;

411. a groove;

42. a fixing plate;

421. a through hole;

43. a connecting end;

44. a bolt;

50. a protective cover;

51. a connecting belt;

511. a groove;

52. a gasket;

521. perforating;

522. a circular hole;

53. a cover body;

531. a convex ring;

60. an electrical device;

61. locking holes;

Detailed Description

In order to clearly understand the technical solution, the purpose and the effect of the present invention, a detailed description of the present invention will be described with reference to the accompanying drawings.

Referring to fig. 1 to 5 in succession, a waterproof connector with a protective cover includes: a connector 10 and a protection cover 20, a connector 10 includes a linking tube 11, a locking seat 12 and a plugging tube 13 formed in sequence, a plurality of pins 14 are inserted between the linking tube 11 and the plugging tube 13, the plugging tube 13 is recessed to form a receiving space 131, the pins 14 are protruded into the receiving space 131, the plugging tube 13 can be inserted externally to form power supply and communication functions by the pins 14, a convex ring 121 is formed on the outer edge of the locking seat 12, a fastening groove 122 facing the plugging tube 13 is surrounded by the convex ring 121, a plurality of screw holes 151 are formed on the surface of the fastening groove 122 of the locking seat 12, a plurality of convex blocks 123 are protruded toward the linking tube 11 of the locking seat 12, a metal screw 15 is wrapped and fixed on the convex blocks 123, the screw holes 151 are formed by the metal screw 15, a retaining wall 132 is formed on the bottom surface of the receiving space 131 of the connector 10, the retaining walls 132 are spaced between the pins 14, the height of the retaining walls 132 is used to block between the pins 14, so that the pins 14 will not contact each other when accidentally toppling over, the connector 10 is recessed towards the accommodating space 131 to form a dodging groove 133 on the outer surface of the insertion tube 13, and a protruding strip 134 on the inner surface of the insertion tube 13 is formed due to the dodging groove 133, in addition, the dodging groove 133 extends axially from one end of the tightening groove 122 to one end of the insertion tube 13, the connector 10 is recessed between the tightening groove 122 and the insertion tube 13 to form a ring groove 124, a protective cover 20 is a chain belt 21 connected with a gasket 22 and a cover 23, the gasket 22 is provided with a through hole 221 for sleeving the insertion tube 13, and the gasket 22 is installed at the tightening groove 122 of the locking seat 12, the gasket 22 is provided with a ring 222 protruding from the periphery of the through hole, and the ring 222 is accommodated in the ring groove 124 of the connector 10, and the gasket 22 protrudes the tightening groove 122 and can be elastically extruded to form a waterproof effect, in addition, the gasket 22 of the protection cover 20 is provided with a plurality of through holes 223 corresponding to the screw holes 151, the link belt 21 is formed at the inner edge of the through hole 221, and the link belt 21 is accommodated in the evasion groove 133 of the insertion pipe 13, so that the link belt 21 is hidden without affecting the outward penetration of the insertion pipe 13, an arc concave part 211 is formed at the middle section of the link belt 21, and the arc concave part 211 controls the elastic deformation position of the link belt 21, thereby reducing the deformation amount of the link belt 21 connected to one end of the gasket 22, so that the gasket 22 is not affected by the link belt 21 to reduce the tightness, the cover body 23 is formed with an outer ring part 24 and an inner ring part 25, and the depth of the outer ring part 24 is greater than that of the inner ring part 25, and a plurality of clamping strips 241 are convexly arranged on the inner surface 23 of the outer ring part 24, the cover 23 is sleeved on the insertion tube 13 by the outer ring portion 24, the clamping strip 241 is abutted against the insertion tube 13, the contact area between the outer ring portion 24 and the insertion tube 13 is reduced by the clamping strip 241, an inclined surface 242 is formed at the position of the clamping strip 241 adjacent to the outer ring portion 24, the cover 23 is easily sleeved on the insertion tube 13 by the inclined surface 242, the inner ring portion 25 is inserted into the insertion tube 13, the outer ring portion 24 and the inner ring portion 25 are clamped and fixed on the insertion tube 13, the inner wall surface of the insertion tube 13 is convexly provided with a limit strip 135, the inner ring portion 25 of the cover 23 is concavely provided with a limit groove 251, the cover 23 is accommodated in the limit groove 251 to the limit strip 135, thereby maintaining the fixed covering position of the cover 23 and the insertion tube 13, in addition, the inner ring portion 25 is formed with an inner shrinking plane 252, and the inner shrinking plane 252 avoids the protruding strip 134 of the insertion tube 13, and has the relative rotation-proof effect of the cover body 23 and the inserting pipe 13.

As shown in fig. 2, 3 and 4, the protective cover 20 is disposed on the insertion tube 13 of the connector 10 by the through hole 221 of the gasket 22, and the gasket 22 is flatly disposed in the tightening groove 122 of the locking seat 12, the protruding ring 121 of the locking seat 12 is disposed around the outer periphery of the gasket 22, so as to effectively limit the assembly position of the gasket 22, the ring 222 of the gasket 22 can be disposed in the ring groove 124 of the locking seat 12, so as to improve the stability of the gasket 22 disposed in the locking seat 12, in addition, one end of the linking band 21 of the protective cover 20 is connected to the through hole 221 of the gasket 22, and the other end is connected to the cover 23, the linking band 21 can be disposed in the evasion groove 133 of the insertion tube 13, so that the linking band 21 does not exceed the circumferential range of the insertion tube 13, and the connector 10 can be disposed in an electrical device 30, the pin 14 is inserted between the link tube 11 and the insertion tube 13, so that the pin 14 at one end of the link tube 11 can be electrically connected to the electrical apparatus 30, and the cover 23 of the protection cover 20 can elastically deform to pass through a circular hole 31 of the electrical apparatus 30, the insertion tube 13 of the connector 10 can be inserted through the circular hole 31 from the inside of the electrical apparatus 30 to the outside, and the evasion groove 133 is utilized to accommodate the link belt 21 so as not to form assembly interference, thereby smoothly arranging the cover 23 at the outside of the electrical apparatus 30, arranging the gasket 22 inside the electrical apparatus 30, further passing a plurality of bolts 32 through the through holes 223 of the gasket 22 to be screwed into the screw holes 151 of the locking seat 12, i.e. locking the connector 10 at the housing of the electrical apparatus 30, when the bolts 32 are locked, the gasket 22 of the protection cover 20 will be squeezed by the locking seat 12 and the housing of the electrical apparatus 30, the portion of the gasket 22 protruding from the protruding ring 121 can elastically deform to provide sufficient waterproof effect to the circular hole 31, and the ring 222 of the gasket 22 can be further pressed against the ring groove 124 to effectively increase the waterproof effect between the connector 10 and the electrical device 30, on the other hand, the locking seat 12 is blocked by the protruding ring 121 at the outer periphery of the gasket 22, and the ring groove 124 receives the ring 222 of the gasket 22, so that the gasket 22 is limited at the tightening groove 122 of the locking seat 12, and the torsion generated by the bolt 32 when locking the screw hole 151 will not cause distortion of the gasket 22, and the waterproof function of the gasket 22 will not be lost.

Further explaining the use function, referring to fig. 2 to fig. 7, the connector 10 is installed on the electrical apparatus 30 from inside to outside, so that the plugging pipe 13 and the cover 23 are exposed, when the connector 10 is used, the plugging pipe 13 can be plugged into an external connector to form an electrical conduction state, so that the pin 14 of the connector 10 has functions of supplying power and transmitting signals, when the connector 10 is not used, the cover 23 of the protection cover 20 can cover the plugging pipe 13 of the connector 10 to have a dustproof effect, further, the cover 23 can allow the outer ring portion 24 to be sleeved on the outer edge of the plugging pipe 13 by bending deformation of the linking belt 21, and the clamping strips 241 of the outer ring portion 24 are used to form multiple clamps for the plugging pipe 13, and the unclamped portions can form a gap capable of exhausting air inside the cover 23, the outer ring portion 24 can easily fit the insertion tube 13, the depth of the outer ring portion 24 is greater than that of the inner ring portion 25, the outer ring portion 24 stably fits the insertion tube 13 and then the inner ring portion 25 is squeezed into the receiving space 131 of the insertion tube 13, so as to form a clamping and fixing of the outer ring portion 24 and the inner ring portion 25 to the insertion tube 13, thereby having an easy-to-close function on the premise of stable closing, the limiting groove 251 and the inner shrinking plane 252 of the inner ring portion 25 can allow a user to visually and quickly align the insertion tube 13 and the cover 23 during the closing action, and the cover 23 can not form a torsional deformation of the chain connecting belt 21 during the closing of the insertion tube 13 by the aligning of the limiting groove 251 and the limiting strip 135 and the aligning of the inner shrinking plane 252 and the protruding strip 134, in another embodiment of the present invention, referring to fig. 8 and 9, an inclined opening 243 is formed on the outer ring portion 24 of the cover 23, and a relatively lower end of the inclined opening 243 is located at an end of the cover 23 connected to the chain belt 21, so that the cover 23 can partially cover the splicing pipe 13 in an inclined state by using the end of the chain belt 21 as a swing fulcrum and matching with the inclined opening 243, thereby reducing the swing amplitude of the cover 23, not only achieving the function of protecting the chain belt 21, but also improving the smoothness of the covering operation.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should fall within the protection scope of the invention.

Claims

1. A waterproof connector having a protective cover, characterized in that the waterproof connector having a protective cover comprises:

a connector, which comprises a linking tube, a locking seat and an inserting tube formed in sequence, a plurality of pins are inserted between the linking tube and the inserting tube, a convex ring is formed on the outer edge of the locking seat, and a tightening groove facing the direction of the inserting pipe is formed by the surrounding of the convex ring, an accommodating space is formed in the inner concave of the inserting pipe, the pins are convexly arranged in the accommodating space, so that the plug-in pipe can be plugged outwards and is conducted through the pins to form power supply and communication functions, an evasion groove is formed on the outer surface of the plug-in pipe inwards towards the accommodating space, the inner surface of the plug pipe is provided with a convex strip due to the forming of the dodging groove, and the dodging groove extends from one end of the plug pipe close to the tightening groove to one end of the plug pipe far away from the tightening groove along the axial direction of the plug pipe; and

a protective cover, the protective cover is a linking belt connected with a gasket and a cover body, the gasket is provided with a through hole for sleeving the splicing pipe, the gasket is arranged at the fastening groove of the locking seat, the gasket protrudes out of the fastening groove and can be elastically extruded to form a waterproof effect, the linking belt is formed at the inner edge of the through hole and is accommodated in the dodging groove, so that the linking belt is hidden and does not influence the outward penetration of the splicing pipe, the cover body is provided with an outer ring part and an inner ring part, the depth of the outer ring part is larger than that of the inner ring part, the cover body is sleeved on the splicing pipe by the outer ring part, the inner ring part is inserted into the splicing pipe, so that the splicing pipe is clamped and fixed by the outer ring part and the inner ring part, and an inner shrinking plane is formed on the inner ring part, and the inner contracting plane dodges the convex strip, and the cooperation of the convex strip and the inner contracting plane enables the cover body and the plug-in pipe to relatively prevent rotation.

2. The waterproof connector with a protective cover according to claim 1, wherein a plurality of screw holes are formed on a surface of the tightening groove of the locking seat, and a plurality of through holes are formed on the spacer of the protective cover corresponding to the screw holes.

3. The waterproof connector with protective cover as claimed in claim 2, wherein a plurality of protrusions are protruded from the locking seat in a direction toward the link pipe, and a metal screw is fixed to each protrusion in a covering manner, and the screw hole is formed by the metal screw.

4. The waterproof connector with the protective cover according to claim 1, wherein an annular groove is formed on the connector in a concave manner between the tightening groove and the insertion pipe, and a ring is protruded from the gasket at the periphery of the through hole and is accommodated in the annular groove.

5. The waterproof connector with the protective cover as claimed in claim 1, wherein a retaining wall is protruded from a bottom surface of the receiving space, and the retaining wall is spaced between the pins and is blocked between the pins by a height of the retaining wall, so that the pins do not contact with each other when they are tilted.

6. The waterproof connector with the protective cover according to claim 1, wherein a plurality of clamping strips are convexly provided on the inner surface of the outer ring portion of the cover body, the clamping strips abut against the plug pipe, and the contact area between the outer ring portion and the plug pipe is reduced by the clamping strips.

7. The waterproof connector with the protective cover as claimed in claim 6, wherein an inclined surface is formed on the clamping strip adjacent to the opening of the outer ring portion, and the cover is guided by the inclined surface to be sleeved into the insertion tube.

8. The watertight connector having a protective cover as claimed in claim 1, wherein an arc recess is formed at a middle section of the link belt, and an elastic deformation position of the link belt is controlled by the arc recess.

9. The waterproof connector with a protective cover according to claim 1, wherein the inner wall surface of the insertion tube is provided with a protruding limit strip, and the inner ring portion of the cover body is provided with a concave limit groove, so that the cover body can receive the limit strip with the limit groove, thereby maintaining the fixed covering position of the cover body and the insertion tube.

10. The waterproof connector with the protective cover according to claim 1, wherein an inclined opening is formed in an outer circumferential portion of the cover body, and a relatively lower end of the inclined opening is located at an end of the cover body to which the linking band is connected.