Cable connecting device capable of automatically cutting off in distress
The device automatically separates cable connections using a safety ring and locking mechanism to prevent machinery from falling by managing separation forces, ensuring reliable disconnection and stability.
Patent Information
- Application Number
- CN202421052974.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-15
AI Technical Summary
Existing cable connections between external power supply devices and engineering machinery are not designed to safely separate in dangerous conditions, posing a risk of increased danger when one of them falls.
A device with a first and second connection part, featuring a safety ring and locking mechanism that allows automatic separation under stress, including symmetric locking parts and adjustable safety members to manage separation forces, ensuring reliable disconnection.
Ensures safe separation of cable connections during distress, preventing machinery from falling and enhancing connection stability and applicability under varying conditions.
Smart Images
Figure CN222261564U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cable accessories, in particular to a device for automatically cutting off cable connections in case of distress. Background Art
[0002] Traditional engineering machinery, agricultural machinery, etc., generally rely on oil resources, have high energy consumption and heavy pollution, and electrification has become an important development direction for engineering machinery. However, because the energy density of batteries is much lower than that of fuel, the battery charging time is long, which determines that it is difficult for engineering machinery to work continuously for a long time. Towing an external power supply device behind the machine is a reasonable power supply method, but because the working road surface and working space of engineering machinery are relatively complex, the cables connecting the external power supply device and the engineering machinery need to be separated from each other in time when the external power supply device or the engineering machinery encounters danger during operation, so as to ensure the safety of the external power supply device or the engineering machinery. At present, the connection of the cable is in a fixed connection mode, and if a safe separation structure is not set, it is easy to use the external power supply device and the engineering machinery when one of them is in danger of falling, which will increase the danger. Utility Model Content
[0003] In order to solve the problem in the prior art that the external power supply device and the engineering machinery can quickly separate the cables connecting them when they are in danger.
[0004] The technical solution of this utility model:
[0005] A device for automatically cutting off a cable connection in case of distress is provided, comprising a first connection part and a second connection part, wherein one end of the first connection part comprises a first connection end, a safety ring is sleeved on the outer side of the first connection part close to the first connection end, and the safety ring can rotate along the axial direction of the first connection part; one end of the safety ring is connected to a safety piece, the safety piece comprises a locking part and a consumable part, and the consumable part is connected between the end of the safety ring and the locking part.
[0006] One end of the second connection part includes a second connection end, and a locking ring is fixedly connected to the outer side of the end of the second connection part close to the second connection end; the inner side of the end of the locking ring away from the second connection part includes a accommodating cavity, and the end of the second connection end close to the locking ring passes through the accommodating cavity along the end of the second connection end to the end away from the second connection part, and the accommodating cavity is fixedly connected to the end of the locking ring close to the second connection part away from the second connection part.
[0007] The second connection end can be separated from the first connection end or plugged into each other. When the position between the second connection end and the first connection end moves from separation to plugging into each other, the safety element enters the accommodating cavity along the side of the locking portion. When the locking portion abuts against the inner side of the accommodating cavity, the safety element is rotated so that the locking portion is engaged with the inner side of the locking portion, thereby limiting the position between the second connection end and the first connection end from moving away from each other in the direction of plugging into each other.
[0008] Furthermore, the utility model provides a device for automatically cutting off cable connections in distress. In order to set a plurality of separation pulling forces of different sizes between an external power supply device and engineering machinery, a plurality of safety members are connected to one end of a safety ring.
[0009] Furthermore, the utility model provides a device for automatically cutting off a cable connection in distress. To ensure the reliability and balance stability of the mutual clamping connection between the locking part and the locking ring, the locking part includes two parts which are symmetrically connected at one end of the accommodating cavity close to the locking ring and away from the second connecting part.
[0010] Furthermore, the utility model provides a device for automatically cutting off a cable connection in case of distress. In order to be able to adjust the force for separating the first connecting part and the second connecting part under different working conditions of an external power supply device and engineering machinery, the safety parts include two groups at one end of the safety ring, each group of safety parts includes a plurality of the safety parts, and the two groups of safety parts are symmetrically connected at one end of the safety ring.
[0011] Furthermore, the utility model provides a device for automatically cutting off a cable connection in case of distress. To ensure the reliability of the vulnerable part, the vulnerable part is in a plate-like structure.
[0012] Furthermore, the utility model provides a device for automatically cutting off cable connections in distress. To improve the ability to reliably separate vulnerable parts from an external power supply device and engineering machinery in distress, the sides of the vulnerable parts that are close to each other include a concave structure, and the cross-section of the vulnerable part at the concave structure is smaller than the cross-section of the vulnerable part at the non-concave structure.
[0013] Furthermore, the utility model provides a device for automatically cutting off cable connections in case of distress. In order to improve the convenience of processing the inner concave structure and reduce the production cost of the safety component, the inner concave structure is in an arc shape.
[0014] Beneficial effects of the utility model:
[0015] 1. When there is a danger of falling between the external power supply device and the engineering machinery, the vulnerable part of the utility model can be pulled off in time so that the first connection part and the second connection part are separated from each other, thereby ensuring that the other external power supply device or engineering machinery is not in danger of falling.
[0016] 2. The locking parts include two parts which are symmetrically connected at one end of the accommodating cavity close to the locking ring and away from the second connecting part, thereby ensuring the connection stability between the safety part and the locking ring and preventing the external power supply device from being separated from the engineering machinery during normal operation.
[0017] 3. There are multiple safety parts connected to one end of the safety ring. The user can adjust the pulling force of the separation according to the normal working conditions of the external power supply device and the engineering machinery, thereby improving the applicability of the device.
[0018] 4. The sides of the vulnerable parts close to each other include a concave structure, which improves the reliability of the safety part being able to be separated when one of the external power supply device and the engineering machinery is in danger.
[0019] 5. The concave structures of the sides where the vulnerable parts are close to each other are in an arc shape, which facilitates the processing of the concave structures, can effectively reduce the production input cost of the device, and is conducive to the promotion and use of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the structure of a device for automatically cutting off cable connections in distress according to the utility model;
[0021] Figure 2 It is a structural schematic diagram of a device for automatically cutting off a cable connection in distress according to the utility model, in which the first connection part and the second connection part are away from each other;
[0022] Figure 3 This is a structural diagram of the second connection part of a device for automatically cutting off a cable connection in distress according to the utility model;
[0023] Figure 4 This is a schematic diagram of the locking ring structure of a device for automatically cutting off cable connections in distress according to the utility model;
[0024] Figure 5 This is a schematic diagram of the structure of the first connection part of a device for automatically cutting off a cable connection in distress according to the utility model;
[0025] Figure 6 This is a schematic diagram of the safety ring structure of a device for automatically cutting off cable connections in case of distress according to the utility model;
[0026] Figure 7 This is a schematic structural diagram of a first connection part and a second connection part of a device for automatically cutting off a cable connection in distress of the utility model when they are connected to each other;
[0027] Figure 8 It is a schematic cross-sectional structure diagram of a first connection part and a second connection part of a cable connection device for automatically cutting off a cable in distress of the utility model when they are connected to each other;
[0028] Names and serial numbers in the figure: 1. first connecting part; 2. second connecting part; 3. safety ring; 4. locking ring; 11. first connecting end; 21. second connecting end; 31. safety piece; 311. locking part; 312. vulnerable part; 41. accommodating chamber; 42. locking part. DETAILED DESCRIPTION
[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings.
[0030] like Figures 1 to 8 As shown, the utility model provides a cable connection device that automatically cuts off in case of distress, including a first connection part 1 and a second connection part 2, wherein the ends of the first connection part 1 and the second connection part 2 that are away from each other can be connected to an external power supply device and an engineering machine, respectively. One end of the first connection part 1 includes a first connection end 11, that is, as shown in the figure, the first connection end 11 is located at the end of the first connection part 1, and it is mainly used to connect with the second connection part 2 for the purpose of transmitting electrical energy or electrical signals. A safety ring 3 is sleeved on the outer side of the first connection part 1 close to the first connection end 11, and the safety ring 3 can rotate along the axial direction of the first connection part 1; one end of the safety ring 3 is connected to a safety piece 31, and the safety piece 31 includes a locking part 311 and a vulnerable part 312, and the vulnerable part 312 is connected between the end of the safety ring 3 and the locking part 311. When the locking portion 311 is subjected to a large external force and the stress exceeds the breaking stress, the safety element 31 may be broken at the vulnerable portion 312 , thereby separating the locking portion 311 from the safety ring 3 .
[0031] like Figures 1 to 3 As shown, one end of the second connection part 2 includes a second connection end 21, wherein the structure of the second connection end 21 matches that of the first connection end 11, that is, the second connection end 21 and the first connection end 11 can be plugged into each other. The outer side of the second connection part 2 close to the second connection end 21 is fixedly connected with a locking ring 4, as shown in the figure, the inner side of the end of the locking ring 4 away from the second connection part 2 includes a receiving cavity 41, and the end of the second connection end 21 close to the locking ring 4 passes through the receiving cavity 41 along the end of the second connection end 21 and away from the second connection part 2, as shown in the figure. Figure 8 As shown, when the first connection part 1 is connected to the second connection part 2, the safety member 31 is accommodated in the accommodation cavity 41. The accommodation cavity 41 is close to the end of the locking ring 4 away from the second connection part 2 and is fixedly connected with a locking part 42, wherein the locking part 42 is used to clamp the locking part 311.
[0032] The second connection end 21 can be moved away from or plugged into the first connection end 11, thereby completing the connection or separation between the first connection part 1 and the second connection part 2. When the position between the second connection end 21 and the first connection end 11 moves from moving away from each other to plugging into each other, the safety member 31 enters the accommodating cavity 41 along the side of the locking portion 42. When the locking portion 311 abuts against the inner side of the accommodating cavity 41, the safety member 31 is rotated so that the locking portion 311 is engaged with the inner side of the locking portion 42, thereby limiting the movement of the position between the second connection end 21 and the first connection end 11 from moving away from each other to plugging into each other. That is, Figure 1 to Figure 2 , the first connection part 1 and the second connection part 2 are separated from each other. Figures 7 and 8 The figure shows the state where the first connection part 1 and the second connection part 2 are connected to each other. Figure 8 As shown, when the first connection part 1 and the second connection part 2 are connected to each other, the safety ring 3 is rotated so that the safety part 31 is engaged with the stop part 42 in the accommodating cavity 41, so that the first connection part 1 and the second connection part 2 can be connected to each other. At this time, if the device is applied between an external power supply device and an engineering machine, they can be connected to each other, and can also be used to transmit electric energy. When one of the external power supply device and the engineering machine falls during operation, the stress between the first connection part 1 and the second connection part 2 will suddenly increase. When the stress between the first connection part 1 and the second connection part 2 is greater than the tensile stress of the vulnerable part 312, the safety part 31 will break at the vulnerable part 312, so that the first connection part 1 and the second connection part 2 are separated, thereby avoiding the external power supply device or engineering machine that is not in danger of falling from danger.
[0033] Furthermore, the utility model provides a device for automatically cutting off the cable connection in case of distress, so that a plurality of separation pulling forces of different magnitudes can be set between the external power supply device and the engineering machinery, such as Figure 5 , Figure 6 As shown, the safety member 31 is connected to one end of the safety ring 3 in multiple numbers. That is, by setting multiple safety members 31, the required tensile stress of each safety member 31 is utilized, and when the safety ring 3 is rotated, the safety ring 3 can be rotated to make the corresponding number of safety members 31 mutually engaged with the stopper 42 when the tensile stress is required. The number of mutually engaged safety members 31 and the stopper 42 is adjusted according to different working conditions of the external power supply device and the engineering machinery, so that the utility model of the automatic cable cutting connection device in distress can have different tensile separation stresses, so that the device has a wider range of application, that is, the external power supply device and the engineering machinery can be more reliably protected under different working conditions.
[0034] like Figure 3 to Figure 4As shown, further, the utility model is a device for automatically cutting off the cable connection in case of distress. To ensure the reliability and balance stability of the mutual engagement between the locking portion 311 and the locking ring 4, the locking portion 42 includes two portions which are symmetrically connected at one end of the accommodating cavity 41 close to the locking ring 4 and away from the second connecting portion 2. Figure 3 to Figure 4 As shown, the two locking portions 42 are in an arc-shaped structure, and the two locking portions 42 are symmetrically connected at the ends of the locking ring 4. Figure 5 to Figure 6 As shown, the safety member 31 includes two groups at one end of the safety ring 3, each group of safety members 31 includes a plurality of safety members 31, and the two groups of safety members 31 are symmetrically connected at one end of the safety ring 3. That is, when the first connection part 1 and the second connection part 2 are connected to each other, the safety ring 3 can be rotated so that a plurality of symmetrical safety members 31 and the stopper 42 are mutually engaged, so that the connection stress between the first connection part 1 and the second connection part 2 is in a relatively balanced state, thereby avoiding the accidental breakage of the safety member 31 due to the unbalanced connection stress between the first connection part 1 and the second connection part 2, thereby affecting the normal connection between the first connection part 1 and the second connection part 2.
[0035] like Figure 5 to Figure 6 As shown, further, the utility model is a device for automatically cutting off cable connection in case of distress. To ensure the reliability of the vulnerable part 312 and simplify the processing of the safety part 31, the vulnerable part 312 is a plate-shaped structure. Figure 6 As shown, the safety part 31 is in the form of a small flat plate at the buckle-fastening part. Therefore, when processing the safety ring 3, a lathe can be used to first machine the outer side surface of the safety part 31 relative to the safety ring 3 in the axial direction, and then multiple outer structures of the safety parts 31 can be processed by milling or other processing methods. Furthermore, in order to improve the reliability of the separation of the vulnerable part 312 when the external power supply device and the engineering machinery are in distress, the sides of the vulnerable part 312 that are close to each other include a concave structure, and the cross-section of the vulnerable part 312 at the concave structure is smaller than the cross-section of the vulnerable part 312 at the non-concave structure. That is, the concave structure is adopted to make the vulnerable part 312 the weakest at the concave structure, so that when the stress of the two parts of the safety part 31 reaches its preset tensile stress, it can break first at the concave part, thereby ensuring the reliability of the separation of the safety part 31 when one of the external power supply device and the engineering machinery is in distress. Furthermore, as Figure 5 to Figure 6 As shown, the utility model is a device for automatically cutting off a cable connection in case of distress. In order to improve the convenience of processing the inner concave structure and reduce the production cost of the safety member 31, the inner concave structure is in an arc shape. That is, after the outer structure processing of multiple safety members 31 is completed, the inner concave structure in an arc shape can be directly drilled between two safety members 31 by drilling, thereby greatly facilitating its processing.
[0036] This article uses specific embodiments to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above are only preferred implementation methods of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the utility model, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.
Claims
1. A device for automatically cutting off cable connections in case of distress, characterized in that: include: A first connecting portion (1), one end of the first connecting portion (1) comprising a first connecting end (11), a safety ring (3) being sleeved on the outer side of the first connecting portion (1) close to the first connecting end (11), and the safety ring (3) being rotatable along the axial direction of the first connecting portion (1); One end of the safety ring (3) is connected to a safety piece (31), the safety piece (31) comprising a locking portion (311) and a vulnerable portion (312), the vulnerable portion (312) being connected between an end of the safety ring (3) and the locking portion (311); A second connecting portion (2), one end of the second connecting portion (2) comprising a second connecting end (21), and a locking ring (4) is fixedly connected to the outer side of an end of the second connecting portion (2) close to the second connecting end (21); The inner side of one end of the locking ring (4) away from the second connection part (2) comprises a receiving cavity (41); the end of the second connection end (21) close to the locking ring (4) passes through the receiving cavity (41) along the end of the second connection end (21) and away from the second connection part (2); the end of the receiving cavity (41) close to the locking ring (4) away from the second connection part (2) is fixedly connected to a locking portion (42); The second connection end (21) can be moved away from or plugged into the first connection end (11), and when the second connection end (21) and the first connection end (11) move from moving away from each other to plugging into each other, the safety element (31) enters the accommodating cavity (41) along the side of the locking portion (42); When the locking portion (311) abuts against the inner side of the accommodating cavity (41), the rotating safety member (31) causes the locking portion (311) to engage with the inner side of the locking portion (42), thereby limiting the positions between the second connection end (21) and the first connection end (11) from moving away from each other in the mutual plugging direction.
2. The device for automatically cutting off cable connection in case of distress according to claim 1, characterized in that: A plurality of safety members (31) are connected to one end of the safety ring (3).
3. The device for automatically cutting off cable connection in case of distress according to claim 2, characterized in that: The locking portions (42) include two portions which are symmetrically connected at one end of the accommodating cavity (41) close to the locking ring (4) and away from the second connecting portion (2).
4. The device for automatically cutting off cable connection in case of distress according to claim 3, characterized in that: The safety member (31) comprises two groups at one end of the safety ring (3), each group of safety members (31) comprises a plurality of safety members (31), and the two groups of safety members (31) are symmetrically connected at one end of the safety ring (3).
5. The device for automatically cutting off cable connection in case of distress according to claim 2, characterized in that: The vulnerable portion (312) is in a plate-like structure.
6. The device for automatically cutting off cable connection in case of distress according to claim 5, characterized in that: The sides of the vulnerable portion (312) that abut against each other comprise a concave structure, and the cross-section of the vulnerable portion (312) at the concave structure is smaller than the cross-section of the vulnerable portion (312) at the non-concave structure.
7. The device for automatically cutting off cable connection in case of distress according to claim 6, characterized in that: The concave structure is in an arc shape.