Flat iron type grounding chain

Abstract

The invention relates to a flat iron type grounding interlock which comprises a front side plate and a rear side plate installed at one end of the front side plate, a support is arranged in the front side plate, a bent plate is connected to the support, sliding blocks are arranged on the two sides of the bent plate, a crank arm assembly and an interlock assembly are arranged in the rear side plate, and an operation shaft is arranged between the support and the crank arm assembly. Through the combined design of the front side plate and the rear side plate and the ingenious layout of the support, the bent plate, the crank arm assembly and the interlocking assembly, the whole grounding interlocking structure is compact and small in occupied space, meanwhile, due to the arrangement of the operation shaft and the opening and closing cover, the guide groove and the like matched with the operation shaft, the operation process is more convenient, and the operation efficiency is improved. A user can realize interlocking opening and closing through simple actions.

Description

Technical Field

[0001] The invention relates to the field of mechanical technology, in particular to a flat iron type grounding interlock. Background Art

[0002] In the power system, the grounding interlock device is an important component to ensure the safe operation of the equipment. Traditional grounding interlock devices are often complex in structure, cumbersome to operate, and have many inconveniences. In order to solve these problems, people began to research and develop new grounding interlock devices, among which the flat iron grounding interlock device is favored due to its simple structure, convenient operation, safety and reliability.

[0003] However, the existing flat iron grounding interlocking devices still have some shortcomings in their design and use. For example, the connection method of the components of some devices is not stable enough, which makes them easy to loosen or be damaged during use. The indication system of some devices is not intuitive and clear enough, making it difficult for operators to quickly and accurately judge the status of the device. In addition, the emergency unlocking function of some devices is not perfect, and they cannot quickly release the locked state in an emergency. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a flat iron type grounding interlock which has a compact structure, is easy to operate, stable and reliable, and has high safety.

[0005] In order to achieve the above purpose, the present invention adopts such a flat iron type grounding chain, comprising a front side plate and a rear side plate installed at one end of the front side plate, the front side plate is provided with a support, the support is connected with a bent plate, and sliders are provided on both sides of the bent plate, and a crank arm assembly and a locking assembly are respectively provided in the rear side plate, an operating shaft is provided between the support and the crank arm assembly, and the installation positions of the front side plate and the rear side plate are both provided with a through groove connected with the operating shaft, the support is provided with a plug-in shaft hole matching the operating shaft, the top end of the operating shaft is plugged into the plug-in shaft hole of the support, and is sleeved with a separation and combination cover, the separation and combination cover is located between the support and the bent plate, the front side plate is provided with a cover opening corresponding to the separation and combination cover, one end of the bent plate extends out of the cover opening of the front side plate, and the crank arm assembly is also provided with a fixed bracket at one end corresponding to the front side plate, and a guide groove connected to the operating shaft is provided on the side wall of the fixed bracket, and the fixed bracket and the locking assembly are connected by a locking long rod.

[0006] The beneficial effect of the above structure is that through the combined design of the front side plate and the rear side plate, and the ingenious layout of the support, the bent plate, the crank arm assembly and the interlocking assembly, the entire grounding interlocking structure is compact and occupies a small space. At the same time, the setting of the operating shaft and the matching separation and closing cover, guide groove, etc. make the operation process more convenient, and the user can open and close the interlocking with simple actions.

[0007] The present invention is further configured as a crank arm assembly including a lower crank arm connected to the end of an operating shaft, a first clamping fork arranged on one side of the lower crank arm, a second clamping fork is arranged on the opposite side of the first clamping fork, an upper crank arm is arranged at one end of the second clamping fork, the lower crank arm is connected to the operating shaft by an elastic pin, the lower crank arm and the first clamping fork are hingedly connected by a first crank arm pin, screw holes are provided on the first clamping fork and the second clamping fork, and a screw rod is provided therebetween, one end of the screw rod is screwed into the screw hole of the first clamping fork, and the other end is screwed into the screw hole of the second clamping fork, and the second clamping fork is hingedly connected to the upper crank arm by the second crank arm pin. The crank arm assembly connects the lower crank arm with the operating shaft through an elastic pin, which not only ensures the smoothness of operation, but also absorbs and alleviates the impact force during operation to a certain extent, thereby improving the overall stability and reliability. The first clamping fork and the second clamping fork are tightly connected by a screw to form a stable clamping structure, which enhances the stability and safety during the grounding process. The lower crank arm and the first clamping fork, as well as the second clamping fork and the upper crank arm are hingedly connected through the crank arm pin, so that the crank arm assembly can rotate flexibly during operation, thereby adapting to different grounding requirements and operating environments.

[0008] The present invention is further configured such that the interlocking component includes a interlocking slider connected to the end of the interlocking long rod, a interlocking base is inserted on the interlocking slider, a first spring hook is provided on the interlocking base, a second spring hook is correspondingly provided on the interlocking slider, a spring is provided between the first spring hook and the second spring hook, a interlocking hook is also provided at one end of the interlocking slider, a hook groove is provided on the interlocking hook, a interlocking hook block is also hinged on the interlocking slider, one end of the interlocking hook block is hingedly connected to the interlocking slider through a pin, the interlocking hook block can rotate around the pin and be placed in the hook groove of the interlocking hook, an auxiliary switch is also provided on the interlocking base, an auxiliary switch clamp fork is installed on the auxiliary switch, and a bending plate located at one end of the auxiliary switch clamp fork is also provided on the interlocking slider. A stable interlocking structure is formed between the interlocking slider and the interlocking base through the cooperation of the spring hook and the spring, which not only ensures the smoothness of the interlocking process, but also effectively prevents interlocking failure or misoperation due to external factors. The setting of the interlocking hook and the interlocking hook block further enhances the stability and reliability of the interlocking. The interlocking hook block can rotate around the pin and be placed in the hook groove of the interlocking hook, making the interlocking process more flexible and not easy to loosen.

[0009] The present invention is further configured such that the rear side plate is provided with a slot corresponding to the locking hook, and the locking hook extends to the outside of the rear side plate. The locking hook extends to the outside of the rear side plate through the slot provided on the rear side plate and is equipped with an emergency unlocking bracket. The provision of the emergency unlocking bracket provides the possibility of quickly unlocking the locking hook in an emergency. When the grounding interlocking device fails or needs to be disconnected urgently, the operator can quickly unlock the locking hook by operating the emergency unlocking bracket, thereby ensuring the safety of the equipment and personnel.

[0010] The present invention is further configured such that the pin passes through the interlocking slider and is hingedly connected to one end of the interlocking hook block, and cushion blocks are sleeved on both sides of the interlocking slider. By sleeved on both sides of the interlocking slider, the stress and friction at the connection can be effectively dispersed, preventing wear and loosening caused by long-term use or external factors.

[0011] The present invention is further configured such that a limit sleeve sleeved on the operating shaft is further provided at the installation position of the front side plate and the rear side plate, and a shaft sleeve sleeved on the operating shaft is further provided between the limit sleeve and the fixed bracket. The setting of the limit sleeve effectively limits the movement range of the operating shaft in the front-back direction, prevents excessive movement or shaking of the operating shaft due to improper operation or external factors, and the shaft sleeve sleeved on the operating shaft can effectively reduce the degree of wear of the operating shaft during the rotation process.

[0012] The present invention is further configured such that the top end of the operating shaft is also sleeved with a plurality of plastic sleeves and fan-shaped plates, and the plastic sleeves and fan-shaped plates are alternately arranged. By alternately arranging the plastic sleeves and fan-shaped plates, the wear-resistant layer and corrosion-resistant layer on the surface of the operating shaft can be further increased, and its service life can be extended. In addition, the design of the plastic sleeves and fan-shaped plates can reduce the friction resistance with surrounding components during the rotation of the operating shaft.

[0013] The present invention is further configured such that the upper crank arm, the lower crank arm, the operating shaft, the support, the bent plate and the fixed bracket are all made of flat iron. Since the flat iron has high strength and hardness and can withstand large pressure and load, the components made of the flat iron can maintain high stability and reliability in the grounding interlock, ensuring the safety and durability of the device during long-term use. The flat iron has a flat surface and precise dimensions, so that the components made of it can fit closely, reducing gaps and looseness. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0015] Figure 2 It is an exploded schematic diagram of the cooperation between the operating shaft, the support and the bent plate of an embodiment of the present invention.

[0016] Figure 3 Schematic diagram of the internal structure of the front side plate of an embodiment of the present invention.

[0017] Figure 4 It is an exploded schematic diagram of the cooperation between the operating shaft and the crank arm assembly of an embodiment of the present invention.

[0018] Figure 5 It is a schematic diagram of the cooperation between the fixing bracket and the interlocking assembly according to an embodiment of the present invention.

[0019] Figure 6It is a schematic diagram of the interlocking component structure of an embodiment of the present invention.

[0020] Figure 7 It is a top view of the cooperation between the interlocking slider and the interlocking hook according to an embodiment of the present invention.

[0021] Figure 8 It is a schematic diagram of the limit sleeve and the shaft sleeve structure on the operating shaft of an embodiment of the present invention.

[0022] Fig. 9 It is a schematic diagram of an exploded view of the operating shaft according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 9 As shown, an embodiment of the present invention provides a flat iron type grounding interlock, comprising a front side plate 1 and a rear side plate 2 installed at the rear end of the front side plate 1, a support 3 is provided in the front side plate 1, a bent plate 4 is connected to the support 3, sliders 41 are provided on both sides of the bent plate 4, a crank arm assembly 5 and a locking assembly 6 are respectively provided in the rear side plate 2, an operating shaft 7 is provided between the support 3 and the crank arm assembly 5, a through groove connected to the operating shaft 7 is provided at the installation positions of the front side plate 1 and the rear side plate 2, a plug-in shaft hole 31 matching the operating shaft 7 is provided on the support 3, the top end of the operating shaft 7 is plugged into the plug-in shaft hole 31 of the support 3, and a separation cover 71 is sleeved, the separation cover 71 is located between the support 3 and the bent plate 4, and the front side plate 1 has a cover opening 11 corresponding to the separation cover 71 One end of the bent plate 4 extends out of the cover 11 of the front side plate 1, and the crank arm assembly 5 is also provided with a fixed bracket 8 at one end corresponding to the front side plate 1. Guide grooves connected to the operating shaft 7 are opened on the side walls at both ends of the fixed bracket 8. The fixed bracket 8 and the interlocking assembly 6 are connected by an interlocking long rod 9. A limiting sleeve 12 sleeved on the operating shaft 7 is also provided at the installation position of the front side plate 1 and the rear side plate 2. A shaft sleeve 13 sleeved on the operating shaft 7 is also provided between the limiting sleeve 12 and the fixed bracket 8. The top of the operating shaft 7 is also respectively sleeved with a plurality of plastic sleeves 72 and fan-shaped plates 73, which are alternately arranged. The upper crank arm 54, the lower crank arm 51, the operating shaft 7, the support 3, the bent plate 4 and the fixed bracket 8 are all made of flat iron.

[0024] The crank arm assembly 5 includes a lower crank arm 51 connected to the end of the operating shaft 7, a first clamping fork 52 arranged on one side of the lower crank arm 51, a second clamping fork 53 is provided on the opposite side of the first clamping fork 52, and an upper crank arm 54 is provided at the upper end of the second clamping fork 53. The lower crank arm 51 is connected to the operating shaft 7 by an elastic pin 55, and the lower crank arm 51 and the first clamping fork 52 are hingedly connected by a first crank arm pin 56. Screw holes are provided on the first clamping fork 52 and the second clamping fork 53, and a screw rod 50 is provided therebetween. One end of the screw rod 50 is screwed into the screw hole of the first clamping fork 52, and the other end is screwed into the screw hole of the second clamping fork 53. The second clamping fork 53 and the upper crank arm 54 are hingedly connected by a second crank arm pin 57.

[0025] The interlocking assembly 6 includes an interlocking slider 61 connected to the end of the interlocking long rod 9, a interlocking base 62 is inserted on the interlocking slider 61, a first spring hook 621 is provided on the interlocking base 62, a second spring hook 611 is correspondingly provided on the interlocking slider 61, a spring 63 is provided between the first spring hook 621 and the second spring hook 611, a interlocking hook 64 is further provided at one end of the interlocking slider 61, a hook groove 641 is provided on the interlocking hook 64, and a interlocking hook block 65 is further hinged on the interlocking slider 61, one end of the interlocking hook block 65 is hingedly connected to the interlocking slider 61 through a pin 66, and the pin 66 passes through the interlocking slider 61 and is connected to the interlocking hook block 6 5 is hingedly connected, and both sides of the pin 66 and the locking slider 61 are hingedly connected are also sleeved with a cushion block 60, the locking hook block 65 can rotate around the pin 66 and be placed in the hook groove 641 of the locking hook 64, and two auxiliary switches 67 are also provided on the locking base 62, and the two auxiliary switches 67 are equipped with auxiliary switch clamping forks 68, and the locking slider 61 is also provided with a bending plate 69 located at one end of the auxiliary switch clamping fork 68, and the rear side plate 2 is provided with a notch corresponding to the locking hook 64, and the locking hook 64 extends to the outside of the rear side plate 2 through the notch provided on the rear side plate 2 and is equipped with an emergency unlocking bracket 10.

[0026] The above working principle is: when the flat iron grounding interlock is in the initial state, the interlocking slider 61 of the interlocking assembly 6 is located at a preset position, the interlocking hook 64 and the interlocking hook block 65 are locked with each other to ensure that the interlock is in a safe state, and the lower crank arm 51, the first clamping fork 52, the second clamping fork 53 and the upper crank arm 54 of the crank arm assembly 5 are in a relatively static state. When there is no external force, they will not move by themselves. When the interlock needs to be operated, manual operation or electric drive acts on the operating shaft 7 to make it start to rotate. The rotation of the operating shaft 7 is transmitted to the lower crank arm 51 through the elastic pin 55, allowing the lower crank arm 51 to rotate while maintaining a certain elasticity. The rotation of the lower crank arm 51 drives the first clamping fork 52 to move relative to each other through the first crank arm pin 56. The first clamping fork 52 and the second clamping fork 53 maintain relative positions through the connection between the screw rod 50 and the screw hole, but allow a certain degree of adjustment. The movement of the second clamping fork 53 is transmitted to the upper crank arm 54 through the second crank arm pin 57, so that the upper crank arm 54 also moves The locking mechanism 61 is actuated by the action of the auxiliary switch 67 and the bending plate 69, and the ...

[0027] Of course, in addition to the above-mentioned embodiments, the present invention may also have many other embodiments. Without departing from the essential technical content of the present invention, technicians familiar with the field may make various corresponding changes and deformations according to the present invention, and these changes or deformations are equivalent to the technical solutions in this patent. These corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A flat iron type grounding interlock, characterized in that: The lever assembly is provided with a fixing bracket at one end thereof, and a guide groove connected to the operating shaft is provided on the side wall of the fixing bracket, and the fixing bracket and the locking assembly are connected by a locking long rod.

2. The flat iron type grounding interlock according to claim 1, characterized in that: The crank arm assembly includes a lower crank arm connected to the end of the operating shaft, a first clamping fork arranged on one side of the lower crank arm, a second clamping fork is provided on the opposite side of the first clamping fork, an upper crank arm is provided at one end of the second clamping fork, the lower crank arm is connected to the operating shaft by an elastic pin, the lower crank arm and the first clamping fork are hingedly connected by the first crank arm pin, screw holes are provided on the first clamping fork and the second clamping fork, and a screw is provided between them, one end of the screw is screwed into the screw hole of the first clamping fork, and the other end is screwed into the screw hole of the second clamping fork, and the second clamping fork is hingedly connected to the upper crank arm by the second crank arm pin.

3. The flat iron type grounding interlock according to claim 1, characterized in that: The interlocking assembly includes a interlocking slider connected to the end of the interlocking long rod, a interlocking base is inserted on the interlocking slider, a first spring hook is provided on the interlocking base, a second spring hook is correspondingly provided on the interlocking slider, a spring is provided between the first spring hook and the second spring hook, a interlocking hook is also provided at one end of the interlocking slider, a hook groove is provided on the interlocking hook, a interlocking hook block is also hinged on the interlocking slider, one end of the interlocking hook block is hingedly connected to the interlocking slider through a pin, the interlocking hook block can rotate around the pin and be placed in the hook groove of the interlocking hook, an auxiliary switch is also provided on the interlocking base, an auxiliary switch clamp fork is installed on the auxiliary switch, and a bending plate located at one end of the auxiliary switch clamp fork is also provided on the interlocking slider.

4. The flat iron type grounding interlock according to claim 3, characterized in that: The rear side plate is provided with a slot corresponding to the locking hook, and the locking hook extends to the outside of the rear side plate. The locking hook extends to the outside of the rear side plate through the slot provided on the rear side plate and is equipped with an emergency unlocking bracket.

5. The flat iron type grounding interlock according to claim 3, characterized in that: The pin passes through the interlocking slider and is hingedly connected to one end of the interlocking hook block, and cushion blocks are sleeved on both sides of the interlocking slider where the pin is hingedly connected.

6. The flat iron type grounding interlock according to claim 1, characterized in that: A limiting sleeve sleeved on the operating shaft is further provided at the installation position of the front side plate and the rear side plate, and a shaft sleeve sleeved on the operating shaft is further provided between the limiting sleeve and the fixed bracket.

7. The flat iron type grounding interlock according to claim 1, characterized in that: The top end of the operating shaft is also sleeved with a plurality of plastic sleeves and fan-shaped plates, and the plastic sleeves and fan-shaped plates are alternately arranged.

8. The flat iron type grounding interlock according to any one of claims 1 to 7, characterized in that: The upper crank arm, the lower crank arm, the operating shaft, the support, the bent plate and the fixing bracket are all made of flat iron.

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