An overload protected cable assembly

Abstract

The present application relates to the field of cable assembly, more particularly to an overload-preventing cable assembly, comprising a mounting shell, a fixed column, a moving device and a cable clamping device, the fixed column and the moving device are arranged inside the mounting shell, the moving device is slidingly installed on the fixed column, the cable clamping device is arranged on the fixed column and the moving device, the separating device and the limiting device are arranged inside the mounting shell, the separating device drives the moving device to slide and separates the fixed column, the limiting device limits the reset of the moving device, the temperature of the fixed column and the moving device when electrified is detected by the separating device, when the temperature is too high, the separating device will push the moving device and the fixed column to separate, thereby disconnecting the connection between the fixed column and the moving device, the transmission of terminal current, and when the current passing through is greater than the limit, the limiting device limits the separation of the fixed column and the moving device.

Description

Technical Field

[0001] This invention belongs to the field of cable assemblies, and in particular relates to an overload-resistant cable assembly. Background Technology

[0002] Cables are an indispensable device in our lives today. Currently, China is the only country in the world that has achieved nationwide electrification, and cables are an essential device for this feat. Cables are mainly used for the transmission of electric current, and electrical appliances are also connected to the power grid through cables.

[0003] However, overload of current may cause damage to the circuit or equipment. Summary of the Invention

[0004] In view of this, the present invention aims to provide an overload-resistant cable assembly to solve the problem of preventing damage to cables or equipment due to current overload.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an overload-proof cable assembly, comprising a mounting shell, a fixed post, a moving device, and a cable clamping device, wherein the mounting shell is provided with a fixed post and a moving device, the moving device is slidably mounted on the fixed post, and the fixed post and the moving device are provided with a cable clamping device, characterized in that the mounting shell is provided with a separation device and a limiting device, the separation device drives the moving device to slide and separate from the fixed post, and the limiting device restricts the resetting of the moving device.

[0006] Furthermore, the separation device includes a fixed ring, a fixed sleeve, an expansion chamber, a movable plug, an ejection device, an obstruction device, a first spring, a sliding groove, and a push plate. The fixed ring is disposed inside the mounting housing, the fixed sleeve is disposed on the fixed ring, the fixed sleeve has an expansion chamber inside, the movable plug slides inside the expansion chamber, the movable plug pushes the movable device to move through the ejection device, the obstruction device obstructs the ejection of the ejection device, the sliding groove is disposed inside the mounting housing, the push plate slides inside the sliding groove, and a first spring is disposed between the push plate and the sliding groove.

[0007] Furthermore, the ejection device includes a push column, a push cylinder, and a second spring. The push column is mounted on a movable sleeve, and the push cylinder slides on the push column. The push column and the push cylinder are equipped with a second spring. The push cylinder pushes the moving device, and the obstructing device obstructs the movement of the push cylinder.

[0008] Furthermore, the obstruction device includes a second sliding cavity, a third spring, an obstruction ball, and an obstruction groove. The second sliding cavity is disposed inside the mounting shell, the obstruction ball slides inside the second sliding cavity, an obstruction ball is disposed between the obstruction ball and the second sliding cavity, and the obstruction groove is disposed on the push cylinder. The obstruction ball, in cooperation with the obstruction groove, obstructs the movement of the push cylinder.

[0009] Furthermore, the limiting device includes a conductive coil, a conductive post, a fixed base, a sliding plate, an inclined post, a second sliding groove, a fourth spring, and a limiting groove. The conductive coil is sleeved on the conductive post, the fixed base is mounted on the mounting shell, the fixed base is provided with a sliding plate, the inclined post is provided with a second sliding groove, the sliding plate slides inside the second sliding groove, a fourth spring is provided between the second sliding groove and the sliding plate, and the limiting groove is provided on the moving device. The inclined post and the limiting groove limit the moving direction of the moving device.

[0010] Furthermore, the cable clamping device includes a clamping cylinder, a clamping cavity, a third sliding cavity, a movable bolt, a fifth spring, a movable strip, a pressing bevel, clamping teeth, a pushing disc, and a pressing groove. The clamping cylinder is provided on the fixed column and the moving device. The clamping cavity is provided inside the clamping cylinder. The third sliding cavity is located inside the clamping cylinder. The movable bolt slides inside the third sliding cavity. The fifth spring is sleeved on the movable bolt and is located inside the third sliding cavity. The movable bolt is provided with a movable strip. The movable strip is provided with a pressing bevel and clamping teeth. The pushing disc is provided with a pressing groove. The pushing disc presses the pressing bevel through the pressing groove, causing the movable strip to move towards the center.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] This device detects the temperature of the fixed column and the moving device when they are powered on through a separation device. When the temperature is too high, the separation device will push the moving device and the fixed column to separate, thereby disconnecting the connection between the fixed column and the moving device and the transmission of the terminal current. When the current passing through is greater than the limit, the limit device will restrict the separation of the fixed column and the moving device. Attached Figure Description

[0013] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0014] Figure 1 This is a three-dimensional structural diagram of an overload-resistant cable assembly according to the present invention;

[0015] Figure 2 This is a schematic cross-sectional view of an overload-resistant cable assembly according to the present invention. Figure 1 ;

[0016] Figure 3 This is a schematic cross-sectional view of an overload-resistant cable assembly according to the present invention. Figure 2 ;

[0017] Figure 4 This is a schematic diagram of an overload-resistant cable assembly structure according to the present invention;

[0018] Figure 5This is a schematic diagram of the clamping cylinder structure described in this invention;

[0019] Figure 6 This is a schematic diagram of the cable clamping device described in this invention;

[0020] Figure 7 This is a partial structural diagram of the cable clamping device described in this invention;

[0021] Figure 8 This is a schematic diagram of the ejection device described in this invention;

[0022] Figure 9 This is a schematic diagram of the obstruction device structure described in this invention;

[0023] Figure 10 This is a schematic diagram of the sliding groove structure described in this invention;

[0024] Figure 11 This is a schematic diagram of the limiting device mechanism described in this invention;

[0025] Figure 12 This is a schematic diagram of the push plate structure described in this invention.

[0026] Mounting housing 1; Separation device 2; Fixing ring 2-1; Fixing sleeve 2-2; Expansion chamber 2-3; Moving plug 2-4; Pushing device 2-5; Pushing column 2-5-1; Pushing cylinder 2-5-2; Second spring 2-5-3; Obstruction device 2-6; Second sliding chamber 2-6-1; Third spring 2-6-2; Obstruction ball 2-6-3; Obstruction groove 2-6-4; First spring 2-7; Sliding groove 2-8; Push plate 2-9; Fixing column 3; Moving... Device 4; Limiting device 5; Conductive coil 5-1; Conductive column 5-2; Fixed base 5-3; Sliding plate 5-4; Inclined column 5-5; Second sliding groove 5-6; Fourth spring 5-7; Limiting groove 5-8; Cable clamping device 6; Clamping cylinder 6-1; Clamping cavity 6-2; Third sliding cavity 6-3; Moving bolt 6-4; Fifth spring 6-5; Moving bar 6-6; Extrusion inclined surface 6-7; Clamping teeth 6-8; Pushing disc 6-9; Extrusion groove 6-10. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.

[0028] Referring to the accompanying drawings, this embodiment of an overload-resistant cable assembly includes a mounting shell 1, a fixed post 3, a moving device 4, and a cable clamping device 6. The mounting shell 1 contains the fixed post 3 and the moving device 4, which are slidably mounted on the fixed post 3. The fixed post 3 and the moving device 4 are provided with the cable clamping device 6. The mounting shell 1 contains a separation device 2 and a limiting device 5. The separation device 2 drives the moving device 4 to slide and separate from the fixed post 3, and the limiting device 5 restricts the resetting of the moving device 4.

[0029] The separation device 2 detects the temperature of the fixed column 3 and the moving device 4 when they are energized. When the temperature is too high, the separation device 2 will push the moving device 4 and the fixed column 3 to separate, thereby disconnecting the connection between the fixed column 3 and the moving device 4 and the transmission of the terminal current. When the current exceeds the limit, the limit device 5 restricts the separation of the fixed column 3 and the moving device 4.

[0030] In this embodiment, the separation device 2 includes a fixed ring 2-1, a fixed sleeve 2-2, an expansion cavity 2-3, a movable plug 2-4, an ejection device 2-5, an obstruction device 2-6, a first spring 2-7, a sliding groove 2-8, and a push plate 2-9. The fixed ring 2-1 is disposed inside the mounting shell 1, and the fixed sleeve 2-2 is disposed on the fixed ring 2-1. The fixed sleeve 2-2 has an expansion cavity 2-3 inside, and the movable plug 2-4 slides inside the expansion cavity 2-3. The movable plug 2-4 pushes the movable device 4 to move through the ejection device 2-5, and the obstruction device 2-6 obstructs the ejection of the ejection device 2-5. The sliding groove 2-8 is disposed inside the mounting shell 1, and the push plate 2-9 slides inside the sliding groove 2-8. The first spring 2-7 is disposed between the push plate 2-9 and the sliding groove 2-8.

[0031] When the fixed sleeve 2-2 is heated, the expansion chamber 2-3 expands. The expanded expansion chamber 2-3 pushes the movable sleeve 2-4 to move. The movable sleeve 2-4 drives the movable device 4 to detach from the fixed post 3. During the movement of the movable sleeve 2-4, the movable sleeve 2-4 exerts a force on the ejection device 2-5 to move outward. However, the obstruction device 2-6 restricts the movement of the ejection device 2-5, causing the ejection device 2-5 to store energy. When the force exerted by the movable sleeve 2-4 breaks through the restriction of the obstruction device 2-6, the ejection device 2-5 quickly pushes the movable device 4 away from the fixed post 3.

[0032] In this embodiment, the ejection device 2-5 includes a push post 2-5-1, a push cylinder 2-5-2, and a second spring 2-5-3. The push post 2-5-1 is disposed on the movable sleeve 2-4, and the push cylinder 2-5-2 slides on the push post 2-5-1. The push post 2-5-1 and the push cylinder 2-5-2 are provided with the second spring 2-5-3. The push cylinder 2-5-2 pushes the moving device 4, and the obstructing device 2-6 obstructs the movement of the push cylinder 2-5-2.

[0033] The movable sleeve 2-4 pushes the pusher column 2-5-1 to move, but the pusher cylinder 2-5-2 is restricted and cannot move, so the second spring 2-5-3 will be compressed.

[0034] In this embodiment, the obstruction device 2-6 includes a second sliding cavity 2-6-1, a third spring 2-6-2, an obstruction ball 2-6-3, and an obstruction groove 2-6-4. The second sliding cavity 2-6-1 is disposed inside the mounting shell 1. The obstruction ball 2-6-3 slides inside the second sliding cavity 2-6-1. The obstruction ball 2-6-3 is disposed between the obstruction ball 2-6-3 and the second sliding cavity 2-6-1. The obstruction groove 2-6-4 is disposed on the push cylinder 2-5-2. The obstruction ball 2-6-3 obstructs the movement of the push cylinder 2-5-2 by cooperating with the obstruction groove 2-6-4.

[0035] The third spring 2-6-2 applies force to the obstruction groove 2-6-4 through the obstruction ball 2-6-3, restricting the movement of the push cylinder 2-5-2 and compressing the second spring 2-5-3 to store energy.

[0036] In this embodiment, the limiting device 5 includes a conductive coil 5-1, a conductive post 5-2, a fixed base 5-3, a sliding plate 5-4, an inclined post 5-5, a second sliding groove 5-6, a fourth spring 5-7, and a limiting groove 5-8. The conductive coil 5-1 is sleeved on the conductive post 5-2. The fixed base 5-3 is mounted on the mounting shell 1. The fixed base 5-3 is provided with the sliding plate 5-4. The inclined post 5-5 is provided with the second sliding groove 5-6. The sliding plate 5-4 slides inside the second sliding groove 5-6. The fourth spring 5-7 is provided between the second sliding groove 5-6 and the sliding plate 5-4. The limiting groove 5-8 is provided on the moving device 4. The inclined post 5-5 and the limiting groove 5-8 limit the moving direction of the moving device 4.

[0037] When the current is overloaded, the conductive coil 5-1 pushes the inclined column 5-5 through the conductive post 5-2, causing the inclined column 5-5 to slide into the limiting groove 5-8, thereby restricting the reset of the moving device 4. Only when the current meets the standard, and the pushing force generated by the conductive coil 5-1 through the conductive post 5-2 is less than the elastic force of the fourth spring 5-7, will the inclined column 5-5 disengage from the limiting groove 5-8 and be released from the limiting position.

[0038] In this embodiment, the cable clamping device 6 includes a clamping cylinder 6-1, a clamping cavity 6-2, a third sliding cavity 6-3, a moving bolt 6-4, a fifth spring 6-5, a moving strip 6-6, a pressing inclined surface 6-7, clamping teeth 6-8, a pushing disc 6-9, and a pressing groove 6-10. The clamping cylinder 6-1 is provided on the fixed column 3 and the moving device 4. The clamping cavity 6-2 is provided inside the clamping cylinder 6-1. The third sliding cavity 6-3 is located inside the clamping cylinder 6-1. The moving bolt 6-4 slides inside the third sliding cavity 6-3. The fifth spring 6-5 is sleeved on the moving bolt 6-4 and is located inside the third sliding cavity 6-3. The moving strip 6-6 is provided on the moving bolt 6-4. The pressing inclined surface 6-7 and clamping teeth 6-8 are provided on the moving strip 6-6. The pressing disc 6-9 is provided with a pressing groove 6-10. The pushing disc 6-9 presses the pressing inclined surface 6-7 through the pressing groove 6-10, causing the moving strip 6-6 to move towards the center.

[0039] The cable pushes the pusher plate 6-9 to move. The moving plate pushes the moving bar 6-6 towards the center through the extrusion groove 6-10 and the extrusion slope 6-7. The moving bar 6-6 compresses the fifth spring 6-5 through the moving bolt 6-4. The moving bar 6-6 clamps the cable by the clamping teeth 6-8.

[0040] The embodiments of the present invention disclosed above are merely illustrative of the invention. These embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. An overload-resistant cable assembly, comprising a mounting housing (1), a fixed post (3), a moving device (4), and a cable clamping device (6), wherein the mounting housing (1) is provided with the fixed post (3) and the moving device (4), the moving device (4) is slidably mounted on the fixed post (3), and the fixed post (3) and the moving device (4) are provided with the cable clamping device (6), characterized in that, The mounting housing (1) is provided with a separation device (2) and a limiting device (5). The separation device (2) drives the moving device (4) to slide and separate from the fixed column (3), and the limiting device (5) restricts the resetting of the moving device (4). The separation device (2) includes a fixed ring (2-1), a fixed sleeve (2-2), an expansion chamber (2-3), a movable plug (2-4), an ejection device (2-5), an obstruction device (2-6), a first spring (2-7), a sliding groove (2-8), and a push plate (2-9). The fixed ring (2-1) is located inside the mounting shell (1), the fixed sleeve (2-2) is located on the fixed ring (2-1), the fixed sleeve (2-2) is located inside the expansion chamber (2-3), the movable plug (2-4) slides inside the expansion chamber (2-3), the movable plug (2-4) pushes the movable device (4) to move through the ejection device (2-5), the obstruction device (2-6) obstructs the ejection of the ejection device (2-5), the sliding groove (2-8) is located inside the mounting shell (1), the push plate (2-9) slides inside the sliding groove (2-8), and the first spring (2-7) is located between the push plate (2-9) and the sliding groove (2-8). The limiting device (5) includes a conductive coil (5-1), a conductive post (5-2), a fixed seat (5-3), a sliding plate (5-4), an inclined post (5-5), a second sliding groove (5-6), a fourth spring (5-7), and a limiting groove (5-8). The conductive coil (5-1) is sleeved on the conductive post (5-2). The fixed seat (5-3) is set on the mounting shell (1). The fixed seat (5-3) is provided with a sliding plate (5-4). The inclined post (5-5) is provided with a second sliding groove (5-6). The sliding plate (5-4) slides inside the second sliding groove (5-6). The fourth spring (5-7) is provided between the second sliding groove (5-6) and the sliding plate (5-4). The limiting groove (5-8) is set on the moving device (4). The inclined post (5-5) and the limiting groove (5-8) limit the moving direction of the moving device (4). The inclined post (5-5) is provided with a magnet.

2. The overload-resistant cable assembly according to claim 1, characterized in that: The ejection device (2-5) includes a push column (2-5-1), a push cylinder (2-5-2), and a second spring (2-5-3). The push column (2-5-1) is mounted on the movable sleeve (2-4), and the push cylinder (2-5-2) slides on the push column (2-5-1). The second spring (2-5-3) is provided between the push column (2-5-1) and the push cylinder (2-5-2). The push cylinder (2-5-2) pushes the moving device (4), and the obstructing device (2-6) obstructs the movement of the push cylinder (2-5-2).

3. The overload-resistant cable assembly according to claim 2, characterized in that: The obstruction device (2-6) includes a second sliding cavity (2-6-1), a third spring (2-6-2), an obstruction ball (2-6-3), and an obstruction groove (2-6-4). The second sliding cavity (2-6-1) is located inside the mounting shell (1). The obstruction ball (2-6-3) slides inside the second sliding cavity (2-6-1). An obstruction ball (2-6-3) is provided between the obstruction ball (2-6-3) and the second sliding cavity (2-6-1). The obstruction groove (2-6-4) is located on the push cylinder (2-5-2). The obstruction ball (2-6-3) obstructs the movement of the push cylinder (2-5-2) by cooperating with the obstruction groove (2-6-4).

4. The overload-resistant cable assembly according to claim 1, characterized in that: The cable clamping device (6) includes a clamping cylinder (6-1), a clamping cavity (6-2), a third sliding cavity (6-3), a moving bolt (6-4), a fifth spring (6-5), a moving bar (6-6), a pressing inclined surface (6-7), clamping teeth (6-8), a pushing disc (6-9), and a pressing groove (6-10). The clamping cylinder (6-1) is provided on the fixed column (3) and the moving device (4). The clamping cavity (6-2) is located inside the clamping cylinder (6-1). The third sliding cavity (6-3) is located inside the clamping cylinder (6-1). The moving bolt... (6-4) Slides inside the third sliding cavity (6-3). A fifth spring (6-5) is fitted on the moving bolt (6-4). The fifth spring (6-5) is located inside the third sliding cavity (6-3). A moving strip (6-6) is provided on the moving bolt (6-4). A pressing slope (6-7) and a clamping tooth (6-8) are provided on the moving strip (6-6). A pressing groove (6-10) is provided on the pushing disc (6-9). The pushing disc (6-9) presses the pressing slope (6-7) through the pressing groove (6-10), causing the moving strip (6-6) to move towards the center.

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