Flat iron type grounding chain

Abstract

The utility model relates to a flat iron type grounding interlock, which comprises a front side plate and a rear side plate arranged at one end of the front side plate, a support is arranged in the front side plate, a bent plate is connected onto the support, sliders are arranged on two sides of the bent plate, a crank arm component and an interlock component are respectively arranged in the rear side plate, and an operating shaft is arranged between the support and the crank arm component. According to the utility model, through the combination 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 occupies a small space, and meanwhile, through the arrangement of the operation shaft and the opening and closing cover, the guide groove and the like which are 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 utility model relates to mechanical technical field especially relates to a flat iron type grounding interlock. BACKGROUND

[0002] In the power system, the grounding interlock device is the important part of ensuring the safe operation of equipment. The traditional grounding interlock device is often complex structure, and the operation is tedious, and there are many inconveniences. In order to solve these problems, people begin to research and develop new grounding interlock device, and the flat iron type grounding interlock device is popular because of its simple structure, convenient operation, safe and reliable and other advantages.

[0003] However, the existing flat iron type grounding interlock device still has some deficiencies in the design and use process, for example, the component connection mode of some devices is not stable enough, leading to loose or damage in the use process, the indication system of some devices is not intuitive enough, so that the operator is difficult to quickly and accurately judge the state of the device, and the emergency unlocking function of some devices is not perfect, which cannot quickly release the locking state in the emergency. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model aims at providing a flat iron type grounding interlock with compact structure, convenient operation, stability, reliability and high safety.

[0005] In order to realize the above purpose, the utility model adopts such a flat iron type grounding interlock, including front side plate and rear side plate installed in one end of front side plate, the front side plate is equipped with support, the support is connected with the bending plate, the both sides of the bending plate are equipped with sliding block, the rear side plate is equipped with crank arm assembly and interlock assembly respectively, the support and crank arm assembly are equipped with operation shaft, the installation of front side plate and rear side plate is equipped with the through slot of operation shaft intercommunication, the support is equipped with the plug-in shaft hole matched with operation shaft, the top end of operation shaft is plugged in the plug-in shaft hole of support, and is equipped with the split cover, the split cover is located between support and bending plate, the front side plate is equipped with the cover mouth corresponding split cover, one end of bending plate extends out of the cover mouth of front side plate, the crank arm assembly is equipped with fixed support at one end corresponding front side plate, the sidewall of fixed support is equipped with the guide groove connected on operation shaft, the fixed support and interlock assembly are connected through interlock long rod.

[0006] The beneficial effects of the above structure are that, through the combination design of front side plate and rear side plate, and the ingenious layout of support, bending plate, crank arm assembly and interlock assembly, the whole grounding interlock structure is compact, and the occupied space is small, at the same time, the setting of operation shaft and the split cover, guide groove matched with it make the operation process more convenient, and the user can realize the opening and closing of interlock through simple action.

[0007] The utility model further sets up as the elbow assembly includes the lower elbow of connecting in the operation shaft end, the first fork is established in the lower elbow one side, the opposite side of first fork is equipped with the second fork, one end of second fork is equipped with the upper elbow, the lower elbow and operation shaft are connected through the elastic pin, the lower elbow and first fork are connected through the first elbow pin sub hinged joint, the first fork and second fork all are equipped with the screw hole, and are equipped with the screw rod between, one end of screw rod is screwed into the screw hole of first fork, the other end is screwed into the screw hole of second fork, second fork and upper elbow are connected through the second elbow pin sub hinged joint. Elbow assembly connects the lower elbow and operation shaft through the elastic pin, not only ensures the smoothness of operation, still can absorb and alleviate the impact force in the operation process to a certain extent, thereby improves the overall stability and reliability, first fork and second fork are tightly connected through the screw rod, and form the stable clamping structure, enhances the stability and safety in the grounding process, the lower elbow and first fork, and second fork and upper elbow, all are connected through the elbow pin sub hinged joint, so that the elbow assembly can rotate flexibly in the operation process, thereby adapts to different grounding demand and operating environment.

[0008] The utility model further sets up as the interlocking assembly includes the interlocking slider of connecting in the interlocking long lever end, the interlocking slider is inserted and is equipped with the interlocking base, be equipped with the first spring hook on the interlocking base, the second spring hook is equipped with correspondingly on the interlocking slider, be equipped with the spring between the first spring hook and the second spring hook, one end of interlocking slider still is equipped with the interlocking hook, is set up the hook groove on the interlocking hook, still hinged joint has the interlocking hook block on the interlocking slider, one end of interlocking hook block is connected through the pin and is hinged joint with interlocking slider, interlocking hook block can rotate around the pin and place in the hook groove of interlocking hook, still be equipped with the auxiliary switch on the interlocking base, the auxiliary switch is equipped with the auxiliary switch fork, still be equipped with the bending plate of the auxiliary switch fork one end on the interlocking slider. Interlocking slider and interlocking base are connected through the cooperation of spring hook and spring, and form the stable interlocking structure, not only ensure the smoothness of interlocking process, still can effectively prevent the interlocking failure or misoperation caused by external factors, the setting of interlocking hook and interlocking hook block, further enhanced the stability and reliability of interlocking, interlocking hook block can rotate around the pin and place in the hook groove of interlocking hook, so that the interlocking process is more flexible and not easy to loosen.

[0009] The utility model further sets up that the rear side board corresponds the interlocking hook and is equipped with the notch of the interlocking hook extension to the rear side board, the interlocking hook is extended to the rear side board outside through the notch of the rear side board and is equipped with the emergency unlocking support. Through the setting of emergency unlocking support, it provides the possibility for unlocking interlocking hook quickly in the emergency, when the grounding interlocking device fails or needs to be disconnected urgently, the operator can operate the emergency unlocking support to unlock the interlocking hook quickly, thereby ensuring the safety of equipment and personnel.

[0010] The utility model further sets up that the pin passes through the interlocking slider and is hinged with one end of the interlocking hook block, and the both sides of the pin hinged with the interlocking slider are also sleeved with the cushion. By the cushion on both sides of the pin hinged with the interlocking slider, the stress and friction at the connection can be effectively dispersed to prevent wear and tear and looseness caused by long-term use or external factors.

[0011] The utility model further sets up that the installation of the front side board and the rear side board is equipped with the limiting sleeve of the operating shaft, and the limiting sleeve and the fixed support are also equipped with the shaft sleeve of the operating shaft. Through the setting of limiting sleeve, the moving range of operating shaft in the front and back directions is effectively limited, the excessive movement or shaking of operating shaft caused by improper operation or external factors is prevented, and the shaft sleeve on the operating shaft can effectively reduce the wear degree of operating shaft in the rotating process.

[0012] The utility model further sets up that the top of operating shaft is also sleeved with a plurality of plastic sleeves and sector plates, and the plastic sleeves and sector plates are alternately arranged. By the alternate arrangement of plastic sleeve and sector plate, the wear-resistant layer and corrosion-resistant layer on the surface of operating shaft can be further increased, the service life is prolonged, and the design of plastic sleeve and sector plate can reduce the friction resistance between operating shaft and surrounding parts during rotation.

[0013] The utility model further sets up that the upper elbow arm, the lower elbow arm, the operating shaft, the support, the bent plate and the fixed support are all made of flat iron. The flat iron has high strength and hardness, can bear large pressure and load, the parts made of flat iron can maintain high stability and reliability in grounding interlocking, ensure the safety and durability of the device during long-term use, and the flat iron has a smooth surface and accurate size, so that the parts made of it can be tightly matched to reduce the gap and looseness. ACCURACY

[0014] Figure 1 It is the structure schematic diagram of the utility model embodiment.

[0015] Figure 2 It is the cooperation explosion schematic diagram of operating shaft, support and bent plate of the utility model embodiment.

[0016] Figure 3It is the internal structure schematic view of the front side plate of the embodiment of the utility model.

[0017] Figure 4 It is the cooperation explosion schematic view of the operation shaft and the crank arm assembly of the embodiment of the utility model.

[0018] Figure 5 It is the cooperation schematic view of the fixed support and the interlocking assembly of the embodiment of the utility model.

[0019] Figure 6 It is the interlocking assembly structure schematic view of the embodiment of the utility model.

[0020] Figure 7 It is the cooperation plan view of the interlocking slider and the interlocking hook of the embodiment of the utility model.

[0021] Figure 8 It is the structure schematic view of the limiting sleeve and the shaft sleeve on the operation shaft of the embodiment of the utility model.

[0022] Figure 9 It is the operation shaft cooperation explosion schematic view of the embodiment of the utility model. Specific implementation

[0023] As Figures 1-9 The embodiment of the utility model provides a flat iron type grounding interlocking, including front side plate 1 and install rear side plate 2 at the rear end of front side plate 1, be equipped with support 3 in front side plate 1, be connected with the bent plate 4 on support 3, both sides of bent plate 4 are equipped with slider 41, respectively be equipped with crank arm assembly 5 and interlocking assembly 6 in rear side plate 2, be equipped with operation shaft 7 between support 3 and crank arm assembly 5, the installation of front side plate 1 and rear side plate 2 all are equipped with the through slot of operation shaft 7 intercommunication, be equipped with with operation shaft 7 matched plug-in axle hole 31 on support 3, the top end of operation shaft 7 is plugged in plug-in axle hole 31 of support 3, and is equipped with split cover 71, split cover 71 is located between support 3 and bent plate 4, front side plate 1 is equipped with cover mouth 11 corresponding split cover 71, one end of bent plate 4 extends out cover mouth 11 of front side plate 1, still be equipped with fixed support 8 at corresponding one end of front side plate 1 of crank arm assembly 5, both ends side wall of fixed support 8 all are equipped with the guide groove connected on operation shaft 7, fixed support 8 and interlocking assembly 6 are connected through interlocking long lever 9, still be equipped with the limiting sleeve 12 on operation shaft 7 of the installation of front side plate 1 and rear side plate 2, still be equipped with shaft sleeve 13 on operation shaft 7 between limiting sleeve 12 and fixed support 8, the top end of operation shaft 7 still is equipped with multiple plastic sleeves 72 and sector plate 73 respectively, plastic sleeve 72 and sector plate 73 are alternately arranged, and upper crank arm 54, lower crank arm 51, operation shaft 7, support 3, bent plate 4 and fixed support 8 are all made of flat iron.

[0024] The elbow assembly 5 comprises a lower elbow 51 connected to the end of the operating shaft 7, a first prong 52 arranged on one side of the lower elbow 51, a second prong 53 arranged on the opposite side of the first prong 52, an upper elbow 54 arranged on the upper end of the second prong 53, the lower elbow 51 and the operating shaft 7 being connected by an elastic pin 55, the lower elbow 51 and the first prong 52 being hingedly connected by a first elbow pin 56, the first prong 52 and the second prong 53 each being provided with a screw hole, and a screw rod 50 being arranged between the first prong 52 and the second prong 53, one end of the screw rod 50 being screwed into the screw hole of the first prong 52, and the other end being screwed into the screw hole of the second prong 53, the second prong 53 and the upper elbow 54 being hingedly connected by a second elbow pin 57.

[0025] The interlocking assembly 6 comprises an interlocking slide 61 connected to the end of the interlocking long rod 9, the interlocking slide 61 being provided with an interlocking base 62 inserted thereon, the interlocking base 62 being provided with a first spring hook 621, the interlocking slide 61 being correspondingly provided with a second spring hook 611, a spring 63 being arranged between the first spring hook 621 and the second spring hook 611, the interlocking slide 61 being further provided with an interlocking hook 64 at one end, the interlocking hook 64 being provided with a hook groove 641, the interlocking slide 61 being further hingedly connected with an interlocking hook block 65, one end of the interlocking hook block 65 being hingedly connected with the interlocking slide 61 by a pin 66, the pin 66 passing through the interlocking slide 61 and being hingedly connected with one end of the interlocking hook block 65, and the two sides of the pin 66 being hingedly connected with the interlocking slide 61 being further provided with a pad 60, the interlocking hook block 65 being rotatable around the pin 66 and being placed in the hook groove 641 of the interlocking hook 64, the interlocking base 62 being further provided with two auxiliary switches 67, the two auxiliary switches 67 being provided with auxiliary switch prongs 68, the interlocking slide 61 being further provided with a bent plate 69 at one end of the auxiliary switch prongs 68, the rear side plate 2 being provided with a slot corresponding to the interlocking hook 64, the interlocking hook 64 extending out of the rear side plate 2 through the slot, and the emergency unlocking bracket 10 being arranged outside the rear side plate 2.

[0026] The working principle is as follows: when the flat iron type grounding interlock is in the initial state, the interlock slider 61 of the interlock assembly 6 is located at a certain preset position, the interlock hook 64 and the interlock hook block 65 are locked with each other, the safety state of the interlock is ensured, the lower arm 51, the first clamping fork 52, the second clamping fork 53 and the upper arm 54 of the arm assembly 5 are in a relatively static state and will not move by themselves without external force, when the interlock needs to be operated, manual operation or electric drive is applied to the operating shaft 7 to make it start to rotate, the rotation of the operating shaft 7 is transmitted to the lower arm 51 through the elastic pin 55, the lower arm 51 is allowed to rotate while maintaining a certain elasticity, the rotation of the lower arm 51 drives the first clamping fork 52 to move relatively through the first arm pin 56, the first clamping fork 52 and the second clamping fork 53 maintain a relative position through the connection of the screw rod 50 and the screw hole, but a certain degree of adjustment is allowed, the movement of the second clamping fork 53 is transmitted to the upper arm 54 through the second arm pin 57, so that the upper arm 54 also moves correspondingly, the overall movement of the arm assembly 5 changes its relative position with the interlock assembly 6, and prepares for the opening or closing of the interlock, with the movement of the arm assembly 5, the interlock long rod 9 is pushed or pulled, causing the interlock slider 61 to slide on the interlock base 62, the sliding of the interlock slider 61 interacts with the first spring hook 621 and the second spring hook 611 on the interlock base 62, ensuring the stability and accuracy of the interlock slider 61 during sliding, when the interlock slider 61 slides to a specific position, the interlock hook block 65 can rotate around the pin 66 and be placed in the hook groove 641 of the interlock hook 64, realizing the locking of the interlock, in an emergency, the interlock can be unlocked by operating the emergency unlocking bracket 10, the interlock is unlocked, and necessary maintenance or operation can be performed, the integration of the auxiliary switch 67 and the bent plate 69 enables the interlock assembly 6 to provide additional control signals to the control system, for indicating the state of the interlock, triggering an alarm or controlling the operation of other equipment.

[0027] Of course, in addition to the above embodiments, the utility model can have other various embodiments, without departing from the content of the utility model technical scheme, those skilled in the art can make various corresponding changes and deformation according to the utility model, and these changes or deformation and the technical scheme in the patent are equivalent, then these corresponding changes and deformation should belong to the protection scope of the claims attached to the utility model.

Claims

1. A flat iron grounding interlock, characterized by: The utility model provides a kind of front side plate and rear side plate mounted at one end of front side plate, the support is equipped in the front side plate, the support is connected with bent plate, both sides of the bent plate are equipped with sliding block, the rear side plate is equipped with crank arm assembly and interlocking assembly respectively, operating shaft is equipped between the support and crank arm assembly, operating shaft communication through slot is opened in the mounting of the front side plate and rear side plate, the support is equipped with the plug-in shaft hole matched with operating shaft, the top end of operating shaft is plugged into the plug-in shaft hole of support, and is sleeved with split cover, the split cover is between support and bent plate, the front side plate is opened with lid opening corresponding split cover, one end of the bent plate extends out the lid opening of front side plate, the crank arm assembly is equipped with fixed support in corresponding one end of front side plate, guide slot connected on operating shaft is opened in the side wall of fixed support, fixed support and interlocking assembly are connected by interlocking long rod.

2. The strip-type ground 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 fork disposed on one side of the lower crank arm, a second fork disposed on the opposite side of the first fork, and an upper crank arm disposed on one end of the second fork. The lower crank arm is connected to the operating shaft by a resilient pin, the lower crank arm and the first fork are connected by a first crank pin, the first fork and the second fork are both provided with screw holes, and a screw is disposed between them. One end of the screw is screwed into the screw hole of the first fork, and the other end is screwed into the screw hole of the second fork. The second fork and the upper crank arm are connected by a second crank pin.

3. The strip-type ground interlock according to claim 1, wherein: The interlocking assembly includes an interlocking slider connected to the end of the interlocking long rod, an interlocking base inserted into the interlocking slider, a first spring hook disposed on the interlocking base, a second spring hook disposed on the interlocking slider, a spring disposed between the first spring hook and the second spring hook, an interlocking hook disposed on one end of the interlocking slider, a hook slot opened in the interlocking hook, an interlocking hook block hingedly connected to the interlocking slider, and an auxiliary switch disposed on the interlocking base. The interlocking hook block can rotate around the pin and be placed in the hook slot of the interlocking hook. An auxiliary switch fork is disposed on the auxiliary switch, and a bent plate is disposed on one end of the interlocking slider.

4. The strip-type ground interlock according to claim 3, wherein: The rear side plate is provided with a slot corresponding to the interlocking hook, and the interlocking hook extends out of the rear side plate through the slot. An emergency unlocking bracket is disposed on the rear side plate.

5. The strip-type ground interlock according to claim 3, wherein: The pin passes through the interlocking slider and is hingedly connected to one end of the interlocking hook block. The pin is hingedly connected to the interlocking slider on both sides, and a pad is sleeved on both sides of the pin.

6. The strip-type ground interlock according to claim 1, wherein: A limiting sleeve is sleeved on the operating shaft at the mounting of the front side plate and the rear side plate. A shaft sleeve is sleeved on the operating shaft between the limiting sleeve and the fixed support.

7. The strip-type ground lock according to claim 1, wherein: A plurality of plastic sleeves and fan-shaped plates are sleeved on the top end of the operating shaft. The plastic sleeves and fan-shaped plates are arranged alternately.

8. The strip-type ground interlock according to claim 2, wherein: The upper crank arm, lower crank arm, operating shaft, support, bent plate, and fixed support are all made of flat iron.

Images