Fuse mounting device for handcart

Abstract

The utility model relates to the technical field of high-voltage switches, in particular to a fuse mounting device for a handcart. The device comprises a fusing assembly, a contact assembly and a mounting assembly, the fusing assembly comprises an insulating sleeve and a fuse arranged in the insulating sleeve, the contact assembly comprises a contact and a contact arm connected with the contact, the contact arm is detachably connected with one end of the insulating sleeve, and the contact arm is located in the insulating sleeve to position one end of the fuse. The mounting assembly comprises a mounting seat, the mounting seat is detachably connected with the other end of the insulating sleeve, and the mounting seat is located in the insulating sleeve to position the other end of the fuse. According to the utility model, the whole installation and replacement process of the fuse is simpler, more convenient and faster, the stability of the device is enhanced, the service life of the fuse is prolonged, and the operation efficiency and reliability of a whole electrical system are improved.

Description

Technical Field

[0001] This utility model relates to the field of high voltage switch technology, and in particular to a fuse installation device for handcarts. Background Technology

[0002] The existing fuse installation structure of the fuse truck includes an insulating clamp, a support plate, a fuse tube clamp, a fuse, a conductive rod, and a stylus contact. The support plate, fuse tube clamp, fuse, and conductive rod are installed between the insulating clamps, and the stylus contact is installed on the conductive rod. This structure has a long processing cycle, is complex and time-consuming to install, and has poor insulation performance. When it is necessary to inspect or replace the fuse, some special tools are required for removal, which takes a long time. This results in very long maintenance time and power outage time for the substation, which is not conducive to on-site maintenance. Utility Model Content

[0003] The technical problem to be solved by this utility model embodiment is to provide a fuse installation device for handcarts, so as to solve the problems of complex and time-consuming installation and difficult maintenance of fuses in high-voltage switchgear in the prior art.

[0004] This utility model discloses a fuse installation device for handcarts, including a fuse assembly, a contact assembly, and an installation assembly;

[0005] The fusible assembly includes an insulating sleeve and a fuse disposed within the insulating sleeve;

[0006] The contact assembly includes a contact and a contact arm connected to the contact. The contact arm is detachably connected to one end of the insulating sleeve, and the contact arm is located inside the insulating sleeve to position one end of the fuse.

[0007] The mounting assembly includes a mounting base, which is detachably connected to the other end of the insulating sleeve, and the mounting base is located inside the insulating sleeve to position the other end of the fuse.

[0008] Optionally, the contact arm is provided with an arm seat that mates with the opening of the insulating sleeve, the arm seat is provided with a first external thread, and the opening of the insulating sleeve is provided with a first internal thread corresponding to the first external thread.

[0009] Optionally, the arm seat is provided with a first positioning groove on the end face inside the insulating sleeve, corresponding to the end of the fuse, so that the arm seat positions the end of the fuse through the first positioning groove.

[0010] Optionally, a quincunx clip is fixedly provided in the first positioning groove, and the quincunx clip is engaged with the corresponding end of the fuse.

[0011] Optionally, the mounting base is provided with a connecting seat that mates with the opening of the insulating sleeve, the connecting seat is provided with a second external thread, and the opening of the insulating sleeve is provided with a second internal thread corresponding to the second external thread.

[0012] Optionally, the connecting seat has a second positioning groove on its end face inside the insulating sleeve that corresponds to the end of the fuse, so that the arm seat positions the end of the fuse through the second positioning groove.

[0013] Optionally, a spring is provided in the second positioning groove, and the spring contacts the corresponding end of the fuse.

[0014] Optionally, the fuse has a third positioning groove on the end near the mounting base, and the end of the spring away from the mounting base is fitted into the third positioning groove.

[0015] Optionally, a connector is provided on the end of the mounting base away from the fuse, the connector being used to connect the handcart insulator.

[0016] Optionally, the contact arm is provided with a first sealing plate so that after the contact arm is connected to the insulating sleeve, the first sealing plate seals the port of the insulating sleeve, and the mounting base is provided with a second sealing plate so that after the mounting base is connected to the insulating sleeve, the second sealing plate seals the other port of the insulating sleeve.

[0017] Compared with the prior art, the beneficial effects of the handcart fuse installation device provided in this utility model embodiment are as follows:

[0018] The system comprises a fuse assembly, contact assembly, and mounting assembly. The insulating sleeve of the fuse assembly effectively isolates live parts, improving operator safety. The contact arm in the contact assembly precisely connects the contact to the insulating sleeve and positions one end of the fuse, ensuring reliable contact during opening and closing operations and reducing the risk of electrical faults and misoperation. Furthermore, the mounting assembly connects the other end of the fuse to the handcart's insulation via a mounting base, simplifying and accelerating the overall installation and replacement process. This enhances the stability of the device, extends the fuse's lifespan, and ultimately improves the operational efficiency and reliability of the entire electrical system. Attached Figure Description

[0019] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0020] Figure 1 A schematic diagram of the overall structure of the fuse installation device for handcarts provided in this embodiment of the utility model.

[0021] The labels for the attached figures are as follows:

[0022] 1. Insulating sleeve; 2. Fuse; 3. Contact; 4. Contact arm; 41. Arm seat; 5. Mounting base; 51. Connecting base; 52. Connecting piece; 6. Plum blossom clip; 7. Spring. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] This utility model discloses a fuse installation device for handcarts, such as... Figure 1 As shown, it includes a fuse assembly, a contact 3 assembly, and a mounting assembly;

[0025] The fusible assembly includes an insulating sleeve 1 and a fuse 2 disposed within the insulating sleeve 1;

[0026] The contact 3 assembly includes a contact 3 and a contact 3 arm connected to the contact 3. The contact 3 arm is detachably connected to one end of the insulating sleeve 1, and the contact 3 arm is located inside the insulating sleeve 1 to position one end of the fuse 2.

[0027] The mounting assembly includes a mounting base 5, which is detachably connected to the other end of the insulating sleeve 1, and the mounting base 5 is located inside the insulating sleeve 1 to position the other end of the fuse 2.

[0028] Through the implementation of the above-described embodiment of the fuse installation device for handcarts, the insulating sleeve 1 of the fuse assembly effectively isolates live parts, improving operator safety. The contact 3 arm in the contact 3 assembly precisely connects the contact 3 to the insulating sleeve 1, positioning one end of the fuse 2 and ensuring reliable contact during opening and closing operations, reducing the risk of electrical faults and misoperation. Simultaneously, the addition of the installation assembly allows the mounting base 5 to position the other end of the fuse 2, connecting it to the handcart insulation via the mounting base 5. This simplifies and speeds up the overall installation and replacement process of the fuse 2, enhances the stability of the device, extends the service life of the fuse 2, and ultimately improves the operating efficiency and reliability of the entire electrical system.

[0029] Furthermore, the contact arm 3 is provided with an arm seat 41 that mates with the opening of the insulating sleeve 1. The arm seat 41 is provided with a first external thread, and the opening of the insulating sleeve 1 is provided with a first internal thread corresponding to the first external thread.

[0030] Through the implementation of the above-described embodiment of the fuse installation device for handcarts, by providing an arm seat 41 on the contact arm 3 that mates with the opening of the insulating sleeve 1, and by providing a first external thread on this arm seat 41, the connection between the contact arm 3 and the insulating sleeve 1 can be ensured to be more secure, reducing loosening problems caused by vibration or temperature changes. Simultaneously, a first internal thread corresponding to the first external thread is provided inside the opening of the insulating sleeve 1. This design allows the contact arm 3 to be easily connected to or disassembled from the insulating sleeve 1 by rotation, simplifying the assembly and maintenance process.

[0031] Furthermore, the arm seat 41 is provided with a first positioning groove on the end face inside the insulating sleeve 1, which corresponds to the end of the fuse 2, so that the arm seat 41 positions the end of the fuse 2 through the first positioning groove.

[0032] Through the implementation of the above-described embodiment of the fuse installation device for handcarts, by providing a first positioning groove on the arm seat 41 corresponding to the end of the fuse 2, it is ensured that the arm seat 41 can accurately position the end of the fuse 2 through this positioning groove. This helps to ensure that the fuse 2 maintains the correct orientation and position during installation, thereby avoiding poor electrical connections or safety hazards caused by incorrect installation. Secondly, accurate positioning helps to improve the reliability of the entire fuse 2 installation device, reduces the risk of electrical faults or fires that may be caused by improper installation of the fuse 2, and also facilitates quick identification of the correct installation direction when replacing the fuse 2, further improving the safety and convenience of operation.

[0033] Furthermore, a plum blossom clip 6 is fixedly installed in the first positioning groove, and the plum blossom clip 6 is engaged with the corresponding end of the fuse 2.

[0034] Through the implementation of the above-described embodiment of the fuse installation device for handcarts, the use of the plum blossom clip 6, fixedly installed in the first positioning groove and engaging with the corresponding end of the fuse 2, simplifies the installation process of the fuse 2. No complex tools or precise measurements are required; operators can quickly insert the fuse 2 into the first positioning groove and secure it using the snap-fit ​​action of the plum blossom clip 6, thus improving installation efficiency. The plum blossom clip 6 provides a stable mechanical connection, ensuring that the fixed position of the fuse 2 in the circuit will not loosen due to vibration or temperature changes, thereby enhancing the stability and reliability of the circuit. Furthermore, the use of the plum blossom clip 6 reduces the risk of the fuse 2 falling off or making poor contact due to improper manual operation, improving the safety of circuit operation. When the fuse 2 blows and needs replacement, the snap-fit ​​design facilitates quick release of the fuse 2, making maintenance and replacement convenient. Secondly, the plum blossom clip 6 generally has good versatility, adapting to fuse 2 ends of different sizes and shapes, increasing the product's adaptability and replaceability.

[0035] Furthermore, the mounting base 5 is provided with a connecting seat 51 that mates with the opening of the insulating sleeve 1. The connecting seat 51 is provided with a second external thread, and the opening of the insulating sleeve 1 is provided with a second internal thread corresponding to the second external thread.

[0036] Through the implementation of the above-described embodiment of the fuse mounting device for handcarts, by providing a second external thread on the mounting base 5, which mates with the second internal thread inside the opening of the insulating sleeve 1, a more robust threaded connection can be formed. This connection is more stable than a conventional simple friction connection and can withstand greater mechanical stress and vibration, thereby improving the overall strength and durability of the connection. Furthermore, the insulating sleeve 1 can be easily disassembled and installed by rotation when needed, facilitating routine maintenance and replacement. Secondly, by adjusting the size and specifications of the second external and internal threads, it can accommodate insulating sleeves 1 and mounting bases 5 of different sizes, increasing the product's applicability and flexibility.

[0037] Furthermore, the connecting seat 51 is provided with a second positioning groove on the end face inside the insulating sleeve 1, which corresponds to the end of the fuse 2, so that the arm seat 41 positions the end of the fuse 2 through the second positioning groove.

[0038] Through the implementation of the above-described embodiment of the fuse installation device for handcarts, by providing a second positioning groove on the connecting seat 51 corresponding to the end of the fuse 2, it is possible to ensure that the fuse 2 can be accurately positioned during installation, which helps to avoid problems such as poor contact, overheating, or damage to the fuse 2 caused by inaccurate positioning. The presence of the second positioning groove simplifies the installation process of the fuse 2, allowing operators to quickly insert the fuse 2 into the correct position and fix it through the second positioning groove, reducing installation time and error rate. Secondly, accurate positioning helps to ensure the correct position of the fuse 2 in the circuit, thereby improving the operational safety of the circuit. When the fuse 2 blows and needs to be replaced, this positioning method also facilitates quick identification and replacement of the fuse 2, reducing the risk of electrical accidents caused by improper operation.

[0039] Furthermore, a spring 7 is provided in the second positioning groove, and the spring 7 contacts the corresponding end of the fuse 2.

[0040] Through the implementation of the above-described embodiment of the fuse installation device for handcarts, the spring 7 enables the fuse 2 to be automatically positioned when inserted into the second positioning slot. When the fuse 2 is pushed into the slot, the pressure of the spring 7 pushes the end of the fuse 2 to align with the second positioning slot, ensuring that the fuse 2 is fixed in the correct position. Secondly, the spring 7 helps maintain the stability of the fuse 2 within the insulating sleeve 1. Even under vibration or temperature changes, the fuse 2 will not easily shift, thus ensuring the stability of the circuit connection. Furthermore, the automatic positioning of the spring 7 makes the installation and replacement of the fuse 2 easier. Users do not need to perform precise manual operations; they only need to insert the fuse 2 into the second positioning slot, and the spring 7 will complete the remaining work. This reduces incorrect installation caused by improper operation by installers and lowers the risk of circuit failures or safety hazards caused by incorrect installation.

[0041] Furthermore, a third positioning groove is provided on the end of the fuse 2 near the mounting base 5, and the end of the spring 7 away from the mounting base 5 is fitted into the third positioning groove.

[0042] Through the implementation of the above-described embodiment of the fuse installation device for handcarts, combined with the setting of the second positioning groove, dual positioning of the spring 7 can be achieved, ensuring the reliability of the fixed position of the fuse 2 in the mounting base 5. This provides additional support and positioning when installing or replacing the fuse 2, making the operation simpler. In particular, it avoids the situation where the contact position between the spring 7 and the fuse 2 is offset due to factors such as vibration, thus improving the accuracy and stability of the installation. When the fuse 2 is replaced, the spring 7 precisely pushes the fuse 2 back to its original position, ensuring the correct position of the fuse 2 in the circuit. This helps protect the fuse 2 from external impacts or vibrations, thereby extending the service life of the fuse 2.

[0043] Furthermore, a connector 52 is provided on the end of the mounting base 5 away from the fuse 2, and the connector 52 is used to connect the handcart insulator.

[0044] Through the implementation of the above embodiment of the fuse mounting device for handcarts, the handcart insulator is connected using the mounting base 5, making maintenance and operation more convenient. The handcart insulator is used to isolate the operating handcart, facilitating switching operations or maintenance work.

[0045] Furthermore, a first sealing plate is provided on the contact arm so that after the contact arm is mated with the insulating sleeve, the first sealing plate seals the port of the insulating sleeve. A second sealing plate is provided on the mounting base so that after the mounting base is mated with the insulating sleeve, the second sealing plate seals the other port of the insulating sleeve.

[0046] Through the implementation of the above-described embodiment of the fuse installation device for handcarts, the fuse is encapsulated in an insulating sleeve by the contact arm and the mounting base, and the ports at both ends of the insulating sleeve are sealed by the first sealing plate and the second sealing plate to prevent moisture, dust and other external environmental factors from entering, thereby protecting the fuse from damage by external factors, helping to extend the service life of the fuse and reduce failures caused by component wear or corrosion.

[0047] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of this utility model.

Claims

1. A fuse mounting device for a handcart, characterised in that: The fuse mounting device for the handcart comprises a fuse assembly, a contact assembly and a mounting assembly; The fuse assembly comprises an insulating sleeve and a fuse arranged in the insulating sleeve; The contact assembly comprises a contact and a contact arm connected with the contact, the contact arm is detachably connected with one end of the insulating sleeve, and the contact arm is arranged in the insulating sleeve to position one end of the fuse; The mounting assembly comprises a mounting seat, the mounting seat is detachably connected with the other end of the insulating sleeve, and the mounting seat is arranged in the insulating sleeve to position the other end of the fuse.

2. The fuse mounting device for a handcart according to claim 1, characterized by: An arm seat is arranged on the contact arm and matched with the barrel opening of the insulating sleeve, a first external thread is arranged on the arm seat, and a first internal thread corresponding to the first external thread is arranged in the barrel opening of the insulating sleeve.

3. The fuse mounting device for a handcart according to claim 2, characterized by: A first positioning groove corresponding to the end of the fuse is arranged on the end face of the arm seat in the insulating sleeve, so that the arm seat positions the end of the fuse through the first positioning groove.

4. The fuse mounting device for a handcart according to claim 3, characterized by: A plum blossom clamp is fixedly arranged in the first positioning groove, and the plum blossom clamp is clamped with the corresponding end of the fuse.

5. The fuse mounting device for a handcart according to claim 2, characterized by: A connecting seat matched with the barrel opening of the insulating sleeve is arranged on the mounting seat, a second external thread is arranged on the connecting seat, and a second internal thread corresponding to the second external thread is arranged in the barrel opening of the insulating sleeve.

6. The fuse mounting device for a handcart according to claim 5, characterized by: A second positioning groove corresponding to the end of the fuse is arranged on the end face of the connecting seat in the insulating sleeve, so that the arm seat positions the end of the fuse through the second positioning groove.

7. The fuse mounting device for a handcart according to claim 6, characterized by: A spring is arranged in the second positioning groove, and the spring is in contact with the corresponding end of the fuse.

8. The fuse mounting device for a handcart according to claim 7, characterized by: A third positioning groove is arranged on the end of the fuse close to the mounting seat, and one end of the spring away from the mounting seat is matched and arranged in the third positioning groove.

9. The fuse mounting device for a handcart according to claim 8, characterized by: A connecting piece is arranged on the end of the mounting seat away from the fuse, and the connecting piece is used for connecting the insulator of the handcart.

10. The fuse mounting device for a handcart according to claim 1, characterized by: A first plugging plate is arranged on the contact arm, so that the first plugging plate seals the port of the insulating sleeve after the contact arm is butted against the insulating sleeve, and a second plugging plate is arranged on the mounting seat, so that the second plugging plate seals the other port of the insulating sleeve after the mounting seat is butted against the insulating sleeve.

Images