Safety cable connector with anti-falling function

Abstract

The invention relates to the field of cables, in particular to a safety cable connector with an anti-drop function, which comprises a female head, a connecting sleeve and a male head, the surface of the female head is connected with a connecting sleeve; the connecting sleeve is slidably connected with a male head, and the surface of the male head is fixedly connected with a plurality of guide strips; grooves corresponding to the guide strips are formed in the inner sides of the connecting sleeves, and magnetic attraction pieces capable of being matched with each other are arranged at the deepest positions of the grooves and the ends of the guide strips. A heat conducting ring and the like are also included; the contact column of the female head is fixedly connected with a heat conduction ring. When the contact column and the connecting ring are overloaded and generate heat abnormally, continuous heat is transmitted to the expansion ring through the heat conducting ring, the expansion ring is gradually extended rightwards after being heated, the expansion ring extrudes and pushes the round rod rightwards, then the round rod pushes the connecting disc and the connecting ring rightwards, the connecting disc slides along the inner side of the male head, and the male head is connected with the male head. And the circuit is cut off, so that continuous temperature rise is prevented, and a spontaneous combustion event is avoided.

Description

Technical Field

[0001] The invention relates to the field of cables, and in particular to a safety cable connector with an anti-drop function. Background Art

[0002] With existing plugs, when the male and female heads are connected, both are exposed to the external environment, which poses a certain risk. For example, when using electrical equipment outdoors, long-distance wiring is generally required, and plug adapters are often used in the middle. There is a risk of the line being kicked and stepped on. In this case, the cable itself can be protected by a cable protection groove, but the male and female heads are much larger than the cable and cannot be protected by the cable protection groove. Therefore, the circuit is easily broken by being kicked and stepped on, affecting the normal use of various electrical equipment; loosening of the adapter due to being kicked and stepped on will lead to poor contact, which may lead to abnormal heating or even spontaneous combustion. The existing technology lacks automatic protection measures for the above-mentioned problems. In many cases, it can only be dealt with after being discovered, and there is a lack of early prevention methods. Summary of the invention

[0003] In order to overcome the shortcomings of existing male and female connectors that are much larger than cables and cannot be protected by cable protection grooves, so the circuit is easily broken by being kicked or stepped on, affecting the normal use of various power equipment, the present invention provides a safety cable connector with an anti-drop function.

[0004] The technical implementation scheme of the present invention is: a safety cable connector with an anti-slip function, comprising a female head, a connecting sleeve and a male head; the surface of the female head is connected to the connecting sleeve; the connecting sleeve is slidably connected to the male head, and a number of guide strips are fixedly connected to the surface of the male head; a groove corresponding to the guide strip is provided on the inner side of the connecting sleeve, and the deepest part of the groove and the end of the guide strip are provided with magnetic suction parts that can cooperate with each other; it also includes a heat-conducting ring, a hollow tube, a round rod, an expansion ring, a connecting disk, a connecting ring, a connecting head and a threaded ring; a heat-conducting ring is fixedly connected to the contact column of the female head; the heat-conducting ring is fixedly connected to a number of hollow tubes; each hollow tube is slidably connected to a round rod; an expansion ring is arranged in each hollow tube, and the expansion ring is located between the heat-conducting ring and the round rod; the male head is slidably connected to the connecting disk; the connecting disk is fixedly connected to a number of connecting rings, and the number and position of the connecting ring and the slot of the contact column correspond; the male head is detachably connected to the threaded ring; the threaded ring is rotatably connected to the connecting head; the connecting head is used to pass through the cable body.

[0005] Optionally, each connecting ring is fixedly connected with a plurality of convex rings.

[0006] Optionally, the female connector, the connecting sleeve and the male connector are all made of heat-insulating materials.

[0007] Optionally, a sealing ring is provided on the inner side of the connecting sleeve.

[0008] Optionally, the outer ring surface of the threaded ring is provided with a rough texture.

[0009] Optionally, it further includes a chuck and a screw rod; a chuck is slidably connected to the male head, and a plurality of through holes for fixing the cable body are formed in the chuck, and the chuck is located on the side of the connection plate away from the contact post; a screw rod is rotatably connected to the chuck, and the screw rod is threadedly screwed and fixed with the connection plate.

[0010] Optionally, it further includes a pressure rod; a pressure rod corresponding to each through hole is slidably connected in each chuck, and a spring is arranged between the pressure rod and the chuck; the end of the pressure rod protrudes from the surface of the chuck, and the protruding part slides towards the corresponding through hole of the chuck after being squeezed by the inner wall of the male head.

[0011] Optionally, it further includes a retaining ring; the connection plate is fixedly connected with the retaining ring; a plurality of air holes Ⅰ are formed in the male head; a plurality of air holes Ⅱ are formed in the connection sleeve, and when the female head is connected to the male head, the air holes Ⅰ and the air holes Ⅱ are aligned, and the retaining ring seals the air holes Ⅰ.

[0012] Optionally, the whole retaining ring is red.

[0013] Optionally, there is a reflective coating on the outer side of the retaining ring.

[0014] The beneficial effects of the present invention are as follows: When the contact post and the connection ring are overloaded and abnormally heated, the continuous heat is transferred to the expansion ring through the heat conduction ring. After being heated, the expansion ring gradually elongates to the right, so that the expansion ring squeezes and pushes the round rod to the right, and then the round rod pushes the connection plate and the connection ring to the right. The connection plate slides along the inner side of the male head, so that the connection ring and the slot are disconnected, the circuit is cut off to prevent further temperature rise, and the occurrence of spontaneous combustion events is avoided.

[0015] When used in an open environment, the internal structure can be prevented from being damaged by kicking and stepping, and after the circuit is automatically cut off, it can also prevent personnel from accidentally touching the uncooled heat conduction ring and connection ring and getting scalded; and the magnetic attraction structure does not completely lock the two, and when an external force beyond the limit is applied for pulling, they can also be separated automatically to avoid fracture damage.

[0016] When the cable body penetrates into the male head and is docked with the connection ring, it is not easy to align with each other. To solve this problem, initially, the chuck is located at the end of the male head. The user passes the cable body of the connector through the chuck, and then the user pushes the chuck towards the connection plate. The chuck will first completely enter the male head. At this time, the pressure rod moves towards the center of the chuck under the limitation of the inner wall of the male head, squeezes the cable body and tightly clamps the cable body. Then, the chuck serves as a clamping tool to replace tools such as needle-nose pliers used by people to fix all cable bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram disclosed for the safety-type cable connector with anti-disconnection function of the present invention; Figure 2 The first perspective structural schematic diagram after the female head and male head of the safety cable connector with anti - detachment function of the present invention are fully connected; Figure 3 The second perspective structural schematic diagram after the female head and male head of the safety cable connector with anti - detachment function of the present invention are fully connected; Figure 4 The first perspective structural schematic diagram of the interior of the female head and male head of the safety cable connector with anti - detachment function of the present invention; Figure 5 The second perspective structural schematic diagram of the interior of the female head and male head of the safety cable connector with anti - detachment function of the present invention; Figure 6 The structural schematic diagram of the hollow tube, round rod and expansion ring of the safety cable connector with anti - detachment function of the present invention; Figure 7 The schematic diagram of the disconnected state of the connecting ring and the slot of the safety cable connector with anti - detachment function of the present invention; Figure 8 The schematic diagram of the state where the expansion ring elongates when heated of the safety cable connector with anti - detachment function of the present invention.

[0018] The markings of each component in the drawings are as follows: 1 - female head, 11 - contact post, 12 - connecting sleeve, 2 - male head, 101 - heat - conducting ring, 102 - hollow tube, 103 - round rod, 104 - expansion ring, 105 - connecting head, 106 - threaded ring, 107 - cable body, 108 - connecting disc, 109 - connecting ring, 201 - chuck, 202 - screw rod, 203 - pressing rod, 301 - retaining ring, 1001 - slot, 21 - guiding strip, 22 - ventilation hole Ⅰ, 121 - ventilation hole Ⅱ, 1091 - convex ring. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0020] Embodiment 1, a safety cable connector with anti - detachment function, as Figures 1 - 8As shown in the figure, it includes a female head 1, a connecting sleeve 12 and a male head 2; the female head 1 is fixedly connected with a contact post 11; a plurality of slots 1001 are formed in the contact post 11; the surface of the female head 1 is connected with a connecting sleeve 12; the male head 2 is slidably connected to the connecting sleeve 12, and a plurality of guiding strips 21 are fixedly connected to the surface of the male head 2; a groove corresponding to the guiding strip 21 is formed inside the connecting sleeve 12, and magnetic attracting members capable of cooperating with each other are provided at the deepest part of the groove and the end of the guiding strip 21; It further includes a heat-conducting ring 101, a hollow tube 102, a round rod 103, an expansion ring 104, a connecting disc 108, a connecting ring 109, a connecting head 105 and a threaded ring 106; the heat-conducting ring 101 is fixedly connected to the contact post 11 of the female head 1; two hollow tubes 102 are fixedly connected to the heat-conducting ring 101; each hollow tube 102 is slidably connected with a round rod 103; an expansion ring 104 is arranged in each hollow tube 102, and the expansion ring 104 is located between the heat-conducting ring 101 and the round rod 103; the male head 2 is slidably connected with a connecting disc 108; a plurality of connecting rings 109 are fixedly connected to the connecting disc 108, and the number and positions of the connecting rings 109 correspond to those of the slots 1001 of the contact post 11; the male head 2 is detachably connected with a threaded ring 106; the threaded ring 106 is rotatably connected with a connecting head 105; the connecting head 105 is used for threading a cable body 107.

[0021] Each connecting ring 109 is fixedly connected with a plurality of convex rings 1091. When the connecting ring 109 is docked with the slot 1001, the convex rings 1091 are snapped into the slot 1001, thereby enhancing the connection stability between the connecting ring 109 and the slot 1001.

[0022] The female head 1, the connecting sleeve 12 and the male head 2 are all made of heat-insulating materials, thereby blocking the internal and external heat exchange, preventing the heat-conducting ring 101 from accidentally triggering the round rod 103 under the influence of external heat, and also preventing the internal heat from diffusing to the outside and causing harm in the case of thermal runaway.

[0023] A sealing ring is arranged inside the connecting sleeve 12 to enhance the sealing performance between the male head 2 and the connecting sleeve 12 after the male head 2 is connected to the connecting sleeve 12.

[0024] The outer ring surface of the threaded ring 106 is provided with rough textures, thereby increasing the friction of the outer ring surface of the threaded ring 106 and facilitating the user to screw the threaded ring 106.

[0025] When in use, the user needs to first grasp the cable body 107 and insert it into the connection ring 109 for connection. Then, the user grasps the connector 105 and moves it against the end of the male head 2. Then, the threaded ring 106 is screwed, so that the threaded ring 106 is screwed and fixed to the male head 2, thereby connecting the connector 105 to the male head 2. When the connector 105 moves against the male head 2, it will be pushed by the cable body 107, the connection ring 109 and the connection plate 108 to the other end of the male head 2; then the user places the female head 1 and the male head 2 in a horizontal state, aligns the guiding strip 21 with the groove inside the connecting sleeve 12, and then horizontally pushes the male head 2 to the left into the connecting sleeve 12. The guiding strip 21 moves along the groove inside the connecting sleeve 12 to the end, and the magnetic part at the end of the guiding strip 21 is adsorbed to the magnetic part in the groove inside the connecting sleeve 12, connecting the male head 2 and the female head 1 together. At this time, the connection ring 109 enters the slot 1001, and the contact column 11 is connected to the connection ring 109 of the connecting cable body 107, as Figure 3 shown.

[0026] When the load on the contact column 11 and the connection ring 109 is too large and abnormally heats up, the continuous heat is transferred to the expansion ring 104 through the heat conduction ring 101. After being heated, the expansion ring 104 gradually elongates to the right, so that the expansion ring 104 pushes the round rod 103 to the right, and then the round rod 103 pushes the connection plate 108 and the connection ring 109 to the right. The connection plate 108 slides along the inside of the male head 2, so that the connection ring 109 is disconnected from the slot 1001, cutting off the circuit to prevent further temperature rise and avoid spontaneous combustion. Moreover, because the connection plate 108 can slide in the male head 2, it is the connection plate 108 that moves. Because the magnetic part at the end of the guiding strip 21 is adsorbed to the magnetic part in the groove inside the connecting sleeve 12, the female head 1 and the male head 2 will not separate, as Figure 7 and Figure 8 shown; the closely inserted female head 1 and male head 2 can protect the internal structure. When used in an open environment, it can prevent the internal structure from being kicked or stepped on and damaged. And after the circuit is automatically cut off, it can also prevent people from accidentally touching the uncooled heat conduction ring 101 and connection ring 109 and getting scalded; and the magnetic structure does not completely lock the two. When subjected to an external force pull beyond the limit, they can also separate by themselves to avoid fracture damage.

[0027] Embodiment 2, on the basis of Embodiment 1, as Figures 2 - 5 and Figure 7 shown, further includes a chuck 201 and a screw 202; a chuck 201 is slidably connected to the male head 2. The chuck 201 is provided with a plurality of through holes for fixing the cable body 107, and the chuck 201 is located on the side of the connection plate 108 away from the contact column 11; a screw 202 is rotatably connected to the chuck 201, and the screw 202 is screwed and fixed to the connection plate 108 in a threaded manner.

[0028] It further includes a compression bar 203; a compression bar 203 corresponding to each through hole is slidably connected inside each chuck 201, and a spring is provided between the compression bar 203 and the chuck 201; the end of the compression bar 203 protrudes from the surface of the chuck 201, and the protruding part slides toward the through hole corresponding to the chuck 201 after being squeezed by the inner wall of the male head 2.

[0029] Considering that the cable body 107 of some connectors 105 is relatively soft and thin, under normal circumstances, the connection end must not be too short, otherwise it is very difficult to adjust. For cables that are not easily bent, as long as all the cables are straightened to a state parallel to the connection ring 109 and then the connection rings 109 are roughly aligned, the docking can be easily completed. However, such long, soft and thin cables will cause themselves to sag, and it is not convenient to control a single cable with tools, let alone when there are multiple cables and the connection rings 109 are located inside the male head 2. Therefore, when the cable body 107 extends into the male head 2 to dock with the connection ring 109, it is not easy to align with each other. To solve this problem, initially, the chuck 201 is located at the end of the male head 2, as Figure 4 and Figure 5 shown. The user passes the cable body 107 of the connector 105 through the chuck 201, and then the user pushes the chuck 201 toward the connection plate 108.

[0030] The chuck 201 will first completely enter the inside of the male head 2. At this time, under the limitation of the inner wall of the male head 2, the compression bar 203 moves toward the center of the chuck 201, squeezes the cable body 107 to tightly clamp the cable body 107. Furthermore, the chuck 201 serves as a clamping tool to replace tools such as needle-nose pliers used by people to fix all the cable bodies 107.

[0031] As long as the cable body 107 with a length that will not cause bending is passed through the chuck 201, then after the above fixing process, the cable body 107 between the chuck 201 and the connection plate 108 will be in a relatively straight and easy-to-dock state. There is no need for the user to use tools such as needle-nose pliers to adjust and align the connection rings 109 deeper inside the male head 2 one by one. The chuck 201 is located at a position slightly outside the end of the male head 2, and the user's vision is not easily blocked by tools such as needle-nose pliers, reducing the working difficulty of docking soft and thin cables. After the fixing is completed, further push the chuck 201 toward the connection plate 108. The chuck 201 will stably guide the ends of all the cable bodies 107 to insert into the connection rings 109. Then tighten the screw 202 to connect the chuck 201 and the connection plate 108. The subsequent pushing action will move the chuck 201 and the connection plate 108 together toward the side close to the contact post 11 until the connection ring 109 is completely docked with the slot 1001 to complete the connection work.

[0032] Embodiment 3, on the basis of Embodiment 1, as Figure 3 and Figures 6 - 8As shown, it further includes a retaining ring 301; the connecting plate 108 is fixedly connected with the retaining ring 301; the male head 2 is provided with a plurality of ventilation holes I 22; the connecting sleeve 12 is provided with a plurality of ventilation holes II 121, and when the female head 1 is connected to the male head 2, the ventilation holes I 22 and the ventilation holes II 121 are aligned, and the retaining ring 301 seals the ventilation holes I 22.

[0033] The whole retaining ring 301 is red, playing a role of prompting and being eye-catching.

[0034] There is a reflective coating on the outer side of the retaining ring 301.

[0035] When the connecting plate 108 and the connecting ring 109 move to the right to disengage from the contact post 11, the connecting plate 108 drives the retaining ring 301 to move to the right, so that the retaining ring 301 releases the blockage of the ventilation holes I 22, and then the heat generated can be dissipated to the outside through the ventilation holes I 22 and the ventilation holes II 121 to dissipate heat from the contact post 11 and the connecting ring 109; during normal use, the retaining ring 301 can not only prevent external dust from entering, but also when the retaining ring 301 releases the blockage of the ventilation holes I 22, when maintenance personnel observe through the ventilation holes I 22 and the ventilation holes II 121, if the retaining ring 301 coated with the reflective coating is not seen, it means that this cable connector is automatically disconnected, which is convenient for maintenance personnel to quickly judge the faulty cable from numerous cables, and then perform maintenance on the faulty cable.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes may be made therein without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety cable connector with an anti - detachment function, comprising a female head (1), a connecting sleeve (12) and a male head (2); the surface of the female head (1) is connected with the connecting sleeve (12); the connecting sleeve (12) is slidably connected with the male head (2), and a plurality of guiding strips (21) are fixedly connected to the surface of the male head (2); a groove corresponding to the guiding strip (21) is formed inside the connecting sleeve (12), and magnetic parts capable of cooperating with each other are provided at the deepest part of the groove and the end of the guiding strip (21); characterized in that: It further includes a heat-conducting ring (101), a hollow tube (102), a round rod (103), an expansion ring (104), a connection disk (108), a connection ring (109), a connection head (105) and a threaded ring (106); a heat-conducting ring (101) is fixedly connected to the contact column (11) of the female head (1); several hollow tubes (102) are fixedly connected to the heat-conducting ring (101); each hollow tube (102) is slidably connected with a round rod (103); an expansion ring (104) is arranged in each hollow tube (102), and the expansion ring (104) is located between the heat-conducting ring (101) and the round rod (103); the male head (2) is slidably connected with a connection disk (108); several connection rings (109) are fixedly connected to the connection disk (108), and the number and positions of the connection rings (109) correspond to those of the slots (1001) of the contact column (11); the male head (2) is detachably connected with a threaded ring (106); the threaded ring (106) is rotatably connected with a connection head (105); the connection head (105) is used for threading the cable body (107).

2. A safety cable connector with an anti - detachment function according to claim 1, characterized in that: Each connection ring (109) is fixedly connected with several convex rings (1091).

3. The safety cable connector with an anti - detachment function according to claim 1, characterized in that: The female head (1), the connection sleeve (12) and the male head (2) are all made of heat-insulating materials.

4. The safety cable connector with an anti - detachment function according to claim 1 is characterized in that: A sealing ring is arranged inside the connection sleeve (12).

5. A safety cable connector with an anti - detachment function according to claim 1, characterized in that: The outer ring surface of the threaded ring (106) is provided with rough textures.

6. A safety cable connector with an anti - detachment function according to claim 1, characterized in that: It further includes a chuck (201) and a screw rod (202); the male head (2) is slidably connected with a chuck (201), several through holes for fixing the cable body (107) are formed in the chuck (201), and the chuck (201) is located on the side of the connection disk (108) away from the contact column (11); the chuck (201) is rotatably connected with a screw rod (202), and the screw rod (202) forms a threaded screwing fixation with the connection disk (108).

7. A safety cable connector with an anti - detachment function according to claim 6, characterized in that: It further includes a pressure rod (203); each chuck (201) is slidably connected with a pressure rod (203) corresponding to the through holes one by one, and a spring is arranged between the pressure rod (203) and the chuck (201); the end of the pressure rod (203) protrudes from the surface of the chuck (201), and the protruding part slides towards the through hole of the chuck (201) after being squeezed by the inner wall of the male head (2).

8. A safety cable connector with an anti - detachment function according to claim 1, characterized in that: It further includes a retaining ring (301); the connection disk (108) is fixedly connected with the retaining ring (301); several air holes I (22) are formed in the male head (2); several air holes II (121) are formed in the connection sleeve (12), and when the female head (1) is connected to the male head (2), the air holes I (22) and the air holes II (121) are aligned, and the retaining ring (301) seals the air holes I (22).

9. A safety cable connector with an anti - detachment function according to claim 8, characterized in that: The whole retaining ring (301) is red.

10. A safety cable connector with an anti - detachment function according to claim 8, characterized in that: There is a reflective coating on the outer side of the retaining ring (301).

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