Nut dismounting tool

Abstract

The invention relates to the technical field of nut dismounting tools, in particular to a nut dismounting tool which comprises a clamping jaw, a U-shaped clamping groove is formed in the clamping jaw, a rod body is fixedly connected to the middle section of the clamping jaw, a vibration mechanism is arranged in the rod body, and the vibration mechanism comprises a sliding groove formed in the rod body. A sliding groove is formed in the clamping jaw, a vibrating rod is slidably connected into the sliding groove, a communicating hole is formed in the clamping jaw and communicates with the sliding groove, a vibrating plate is slidably connected into the communicating hole, and the vibrating plate is fixedly connected with the vibrating rod. Through the arrangement of the vibration rod, before the nut is disassembled, the vibration rod drives the vibration plate to move and impact the nut, so that the nut vibrates, the vibration is continuously repeated, and through high-frequency vibration, rust between the nut and the screw rod is loosened, and disassembly of the nut is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nut dismounting tools, in particular to a nut dismounting tool. BACKGROUND

[0002] In the fields of mechanical maintenance, equipment installation, automobile maintenance and industrial production, as a key connecting fastener, the dismounting operation of nuts is one of the core links in the daily maintenance and assembly process. With the development of industrial equipment towards large-scale, precision and integration, the application scenarios of nuts are increasingly complex, and higher requirements are put forward for the adaptability, efficiency and safety of dismounting tools. The mainstream nut dismounting tools on the current market mainly include ordinary wrenches (open-end wrenches, spanners), socket wrenches, adjustable wrenches and hydraulic wrenches. However, these traditional tools have many limitations in actual application and are difficult to meet the dismounting needs under complex working conditions: Rust dismounting difficulty: Nuts exposed to humid and corrosive environments for a long time are prone to rust, seizure or jamming due to long-term stress. Traditional tools rely on manual torque application, which not only has low dismounting efficiency, but also may cause nut corner wear (i.e. "slip angle") due to uneven torque, further increasing the dismounting difficulty, and even need to be processed by cutting, damaging and other methods, causing the scrap of parts.

[0003] For example, the Chinese patent application with application number CN201811403615.3 discloses a hexagonal nut dismounting device, which includes a handle, a hollow box body, a first clamp, a first sliding rod and a first sliding sleeve. A groove is opened on the left side of the upper part of the handle, the top of the handle is provided with a hollow box body for supporting, the right side of the top of the hollow box body is provided with a first clamp for limiting, the first sliding rod is arranged in the upper part of the hollow box body, and the first sliding sleeve is slidingly arranged on the first sliding rod. Although it can dismount the nut, it still cannot meet the dismounting needs when the nut is rusted.

[0004] Therefore, a nut dismounting tool is needed to solve the above problems. SUMMARY

[0005] In order to solve the above problems, i.e. to solve the problem that the nut is rusted and difficult to dismount, the present application provides a nut dismounting tool.

[0006] A nut dismounting tool, comprising a clamping jaw, a U-shaped clamping groove is opened in the clamping jaw, a rod body is fixedly connected to the middle segment of the clamping jaw, a vibration mechanism is arranged in the rod body, the vibration mechanism comprises a sliding groove opened in the rod body, a vibration rod is slidingly connected in the sliding groove, a communication hole is opened in the clamping jaw, the communication hole is in communication with the sliding groove, a vibration plate is slidingly connected in the communication hole, and the vibration plate is fixedly connected with the vibration rod.

[0007] Specifically, in use, the user holds the tool, clamps the hexagonal nut in the clamping groove, so that the two corresponding straight edges of the hexagonal nut are parallel to the two straight segments of the U-shaped clamping groove; then the vibration rod is moved so that the vibration rod moves towards the nut, the vibration rod drives the vibration plate to extend out of the communication hole, so that the vibration plate collides with the nut, causing the nut to vibrate; then the vibration rod is reset so that the vibration rod drives the vibration plate to reset; then the vibration rod is moved again so that the vibration rod drives the vibration plate to collide with the nut; the above steps are repeated, and after a period of vibration, the movement of the vibration rod is stopped, and the rod body is rotated to disassemble the nut.

[0008] Through the clamping groove, the nut can be clamped into the clamping jaw, and through the rotation of the rod body, the nut is driven to rotate, thereby disassembling the nut; through the vibration rod, the vibration plate can be moved by the vibration rod before the nut is disassembled, the nut is collided to cause the nut to vibrate, and the vibration is repeatedly, through the high-frequency vibration, thereby loosening the rust between the nut and the screw, facilitating the disassembly of the nut.

[0009] Preferably, two auxiliary members are symmetrically arranged in the clamping jaw, the auxiliary member comprises two installation grooves symmetrically arranged in the clamping jaw, each installation groove is slidably connected with a sliding plate, and each sliding plate is fixedly connected with an auxiliary rod.

[0010] Specifically, in use, when the vibration plate vibrates the nut, the sliding plate slides in the installation groove, the sliding plate drives the auxiliary rod to move, so that the auxiliary rod enters the clamping groove and contacts the nut in the clamping groove; the sliding plate repeatedly moves to drive the auxiliary rod to repeatedly move and repeatedly collide with the nut, so that the nut vibrates.

[0011] Through the arrangement of the auxiliary member, when the vibration plate vibrates the nut, the auxiliary plate can also vibrate the nut, increase the vibration point, make the vibration of the nut more diversified, further loosen the rust, and make the subsequent disassembly work more convenient.

[0012] Preferably, a power member is arranged in the sliding groove, the power member comprises an interface arranged at one end of the sliding groove away from the clamping jaw, the interface is in communication with an external gas supply device, an electromagnetic valve is arranged in the sliding groove, an end of the vibration rod is fixedly connected with a push plate, the push plate is slidably connected with the inner wall of the sliding groove, and a first spring is connected between the push plate and the inner wall of the sliding groove.

[0013] Specific, use, solenoid is in the closed state, the external gas supply device through the interface to the sliding groove inflation, when the gas pressure in the sliding groove reaches a certain degree, open solenoid, under the action of the gas, push plate moves to the direction of the nut, push plate drive vibration rod moves, impact on the nut, while the push plate compression first spring, after the impact, the external gas supply device exhaust, push plate in the first spring and the action of the gas reset;Repeat the above action, on the nut constantly impact.

[0014] Through the setting of the power component, the push plate can be moved by the suction of the gas, so as to drive the vibration rod to move, thereby achieving the purpose of vibrating the nut.

[0015] Preferably, the sliding groove and the communication hole are communicated with the gas hole, the gas hole is uniformly provided with eight along the circumferential direction, and the vibration plate can close the gas hole.

[0016] Specifically, when the vibration plate impacts the nut, the vibration plate opens the gas hole, and the push plate exhausts the gas between the push plate and the nut in the sliding groove through the gas hole, the exhaust gas blows on the nut, and then blows on the gap between the nut and the bolt.

[0017] Through the setting of the gas hole, when the vibration plate impacts the nut, part of the gas in the sliding groove can be exhausted through the gas hole and blown on the gap between the nut and the bolt, so that the dust and other impurities in the gap between the nut and the bolt are blown away, facilitating the subsequent nut dismounting work.

[0018] Preferably, the power component further comprises a communication groove communicated with the inner wall of the sliding groove, the other end of the communication groove is communicated with the mounting groove, and the communication groove and the sliding groove are communicated on the side of the solenoid close to the nut.

[0019] Specifically, when the solenoid is opened, the gas enters the mounting groove through the communication groove, pushes the sliding plate to the nut, the sliding plate drives the auxiliary rod to move, and the second spring is compressed, the auxiliary rod impacts the nut, and when the external gas supply device exhausts, the sliding plate resets under the action of the gas pressure and the second spring.

[0020] Through the setting of the communication groove, the gas can be introduced into the mounting groove, so that the sliding plate drives the auxiliary rod to impact and vibrate the bolt.

[0021] Preferably, the auxiliary component further comprises an auxiliary plate fixedly connected to the ends of the two auxiliary rods, and the auxiliary plate is located in the clamping groove.

[0022] Specifically, since the nut needs to be clamped in the clamping groove, there is a gap between the nut and the clamping groove, and when the nut is twisted, the clamping groove and the nut are in line contact, and the contacted part bears a large force, which causes the nut or the inner wall of the clamping groove to be easily deformed; when the nut is twisted, the external gas supply device supplies gas to the mounting groove, so that the auxiliary rod drives the auxiliary plate to contact the nut, and during the twisting process, the auxiliary plate keeps in contact with the nut, so that the line contact during the twisting of the nut changes to surface contact, and the stress is dispersed.

[0023] Through the setting of the auxiliary plate, the line contact during the twisting of the nut changes to surface contact, and the stress is dispersed, which slows down the deformation of the nut and the clamping groove, improves the service life of the tool and the service life of the nut.

[0024] Further, the auxiliary plate and the auxiliary rod are detachably connected.

[0025] Through the detachable connection of the auxiliary plate and the auxiliary rod, the auxiliary plate is convenient to replace.

[0026] As another embodiment of the application, preferably, a threaded groove is arranged in communication with the side wall away from the nut of the mounting groove, the threaded groove is in communication with the external space, a threaded rod is threadedly connected in the threaded groove, and the threaded rod is rotatably connected with the sliding plate.

[0027] Specifically, during use, the threaded rod is rotated to move the sliding plate and the auxiliary rod towards the nut, so that the auxiliary plate keeps in contact with the nut during the twisting process, the line contact during the twisting of the nut changes to surface contact, and the stress is dispersed.

[0028] Through the setting of the threaded rod, the pressure applied to the auxiliary rod is more stable, and the pressure of the auxiliary plate on the nut is ensured.

[0029] The application has the following beneficial effects: 1. Through the setting of the clamping groove, the nut can be clamped into the clamping jaw, and through the rotation of the rod body, the nut is driven to rotate, so as to disassemble the nut; through the setting of the vibration rod, before disassembling the nut, the vibration plate is driven to move by the vibration rod, the nut is impacted, the nut is vibrated, and the vibration is repeatedly, through the high-frequency vibration, the rust between the nut and the screw rod is loosened, and the nut is disassembled conveniently.

[0030] 2. Through the setting of the auxiliary part, while the vibration plate vibrates the nut, the auxiliary rod can vibrate the nut, the vibration point is increased, the vibration of the nut is more diversified, the rust is further loosened, and the subsequent disassembly work is more convenient.

[0031] 3. By the setting of the air hole, when the vibrating plate collides with the nut, part of the gas in the sliding groove can be discharged through the air hole and blown at the gap between the nut and the bolt, so that the dust and other impurities at the gap between the nut and the bolt are blown away, facilitating the subsequent nut dismounting work.

[0032] 4. By the setting of the auxiliary plate, during the twisting of the nut, the original line contact is changed to surface contact, the stress is dispersed, the deformation of the nut and the clamping groove is slowed down, and the service life of the tool and the service life of the nut are improved.

[0033] 5. By the setting of the threaded rod, the pressure applied to the auxiliary rod is more stable, ensuring the pressure of the auxiliary plate on the nut. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a schematic diagram of the three-dimensional structure of the present application; Figure 2 is a schematic diagram of the use state of the present application; Figure 3 is a front view of the present application; Figure 4 is an isometric side view of the present application at A-A; Figure 3 Figure 5 is a left view of the present application; Figure 6 is an isometric side view of the present application at B-B; Figure 5 is a partial enlarged view of the present application at C; Figure 7 Figure 6 is a partial enlarged view of the present application at D; Figure 8 is a partial enlarged view of the present application at E. Figure 6 Figure 9 is a partial enlarged view of the present application at E. Figure 6

[0035] In the figure: 1, claw; 2, clamping groove; 3, rod body; 4, vibrating mechanism; 41, sliding groove; 42, vibrating rod; 43, communication hole; 44, vibrating plate; 45, auxiliary part; 451, mounting groove; 452, sliding plate; 453, auxiliary rod; 454, fixing ring; 455, auxiliary plate; 46, power part; 461, interface; 462, electromagnetic valve; 463, push plate; 464, first spring; 465, communication groove; 466, second spring; 47, air hole; 48, threaded rod. DETAILED DESCRIPTION

[0036] ​​​​The preferred embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art will understand that the embodiments are only used to explain the technical principles of the present application and are not intended to limit the protection scope of the present application.

[0037] As shown in Figure 1 , Figure 2 , Figure 4 , the embodiment of the present application discloses a nut dismounting tool, which comprises a claw 1, a U-shaped clamping groove 2 is arranged in the claw 1, a rod body 3 is fixedly connected to the middle section of the claw 1, a vibration mechanism 4 is arranged in the rod body 3, the vibration mechanism 4 comprises a sliding groove 41 arranged in the rod body 3, a vibration rod 42 is slidably connected in the sliding groove 41, a communication hole 43 is arranged in the claw 1, the communication hole 43 communicates with the sliding groove 41, a vibration plate 44 is slidably connected in the communication hole 43, and the vibration plate 44 is fixedly connected with the vibration rod 42.

[0038] Specifically, in use, a user holds the tool, clamps a hexagonal nut in the clamping groove 2, so that two corresponding straight edges of the hexagonal nut are parallel to two straight sections of the U-shaped clamping groove 2, then moves the vibration rod 42 to make the vibration rod 42 move towards the nut, the vibration rod 42 drives the vibration plate 44 to extend out of the communication hole 43, so that the vibration plate 44 collides with the nut to make the nut vibrate, then resets the vibration rod 42 to make the vibration rod 42 drive the vibration plate 44 to reset, then moves the vibration rod 42 again to make the vibration rod 42 drive the vibration plate 44 to collide with the nut, and the above steps are repeated, after vibrating for a period of time, the movement of the vibration rod 42 is stopped, the rod body 3 is rotated, and the nut is dismounted.

[0039] Through the arrangement of the clamping groove 2, the nut can be clamped in the claw 1, and through the rotation of the rod body 3, the nut is driven to rotate, so that the nut is dismounted; through the arrangement of the vibration rod 42, before the nut is dismounted, the vibration rod 42 drives the vibration plate 44 to move to collide with the nut, so that the nut vibrates and continuously vibrates, through high-frequency vibration, the rust between the nut and the screw rod is loosened, and the nut is conveniently dismounted.

[0040] As shown in Figure 6 , Figure 8 , two auxiliary pieces 45 are symmetrically arranged in the claw 1, the auxiliary piece 45 comprises two installation grooves 451 symmetrically arranged in the claw 1, a sliding plate 452 is slidably connected in each installation groove 451, an auxiliary rod 453 is fixedly connected to each sliding plate 452, a fixed ring 454 is fixedly connected to one end of the installation groove 451 close to the clamping groove 2, the auxiliary rod 453 is slidably connected in the fixed ring 454, and the auxiliary rod 453 can enter the clamping groove 2.

[0041] Specifically, in use, when the vibration plate 44 vibrates the nut, the sliding plate 452 slides in the mounting groove 451, the sliding plate 452 drives the auxiliary rod 453 to move, so that the auxiliary rod 453 enters the clamping groove 2 and contacts the nut in the clamping groove 2, the sliding plate 452 continuously reciprocates to drive the auxiliary rod 453 to continuously reciprocate and continuously impact the nut, so that the nut vibrates.

[0042] Through the setting of the auxiliary part 45, the vibration plate 44 vibrates the nut, and at the same time, the auxiliary rod 453 vibrates the nut, increases the vibration point, makes the vibration of the nut more diversified, further loosens the rust, and makes the subsequent disassembly work more convenient.

[0043] As shown in Figure 2 , Figure 4 , the sliding groove 41 is provided with a power part 46, the power part 46 includes an interface 461 provided at one end of the sliding groove 41 away from the clamping jaw 1, the interface 461 is in communication with an external gas supply device, the sliding groove 41 is provided with an electromagnetic valve 462, an end of the vibration rod 42 is fixedly connected with a push plate 463, the push plate 463 is in sliding connection with the inner wall of the sliding groove 41, and the push plate 463 and the inner wall of the sliding groove 41 are connected with a first spring 464.

[0044] Specifically, in use, the electromagnetic valve 462 is in a closed state, the external gas supply device charges the sliding groove 41 through the interface 461, when the air pressure in the sliding groove 41 reaches a certain degree, the electromagnetic valve 462 is opened, under the action of the gas, the push plate 463 moves towards the nut, the push plate 463 drives the vibration rod 42 to move and impact the nut, and the push plate 463 compresses the first spring 464 when moving, after the impact, the external gas supply device exhausts the gas in the sliding groove 41, and the push plate 463 resets under the action of the first spring 464 and the air pressure; repeat the above action to continuously impact the nut.

[0045] Through the setting of the power part 46, the push plate 463 can be moved by gas suction, so as to drive the vibration rod 42 to move, thereby achieving the purpose of vibrating the nut.

[0046] As shown in Figure 9 , the sliding groove 41 and the communication hole 43 are in communication with the air hole 47, the air hole 47 is uniformly provided with eight air holes in the circumferential direction, and the vibration plate 44 can close the air hole 47.

[0047] Specifically, when the vibration plate 44 collides with the nut, the vibration plate 44 opens the air hole 47, and the push plate 463 pushes the gas in the sliding groove 41 between the push plate 463 and the nut out through the air hole 47, and the discharged gas blows on the nut and then blows on the gap between the nut and the bolt through the guide of the nut.

[0048] The arrangement of the air hole 47 enables the vibration plate 44 to push part of the gas in the sliding groove 41 out through the air hole 47 when the vibration plate 44 collides with the nut, and the discharged gas blows on the gap between the nut and the bolt, so that the dirt and other impurities at the gap between the nut and the bolt are blown away, facilitating the subsequent nut dismounting work.

[0049] As shown in Figure 7 , Figure 8 , the power member 46 further comprises a communication groove 465 arranged in communication with the inner wall of the sliding groove 41, the other end of the communication groove 465 communicates with the mounting groove 451, and the communication groove 465 communicates with the sliding groove 41 at the side of the electromagnetic valve 462 close to the nut, and the sliding plate 452 and the fixed ring 454 are connected with the second spring 466.

[0050] Specifically, when the electromagnetic valve 462 is opened, the gas enters the mounting groove 451 through the communication groove 465, pushes the sliding plate 452 to move close to the nut, drives the auxiliary rod 453 to move at the same time, and compresses the second spring 466, and the auxiliary rod 453 collides with the nut, and when the external gas supply device is pumping, the sliding plate 452 resets under the action of the gas pressure and the second spring 466.

[0051] The arrangement of the communication groove 465 enables the gas to enter the mounting groove 451, so that the sliding plate 452 drives the auxiliary rod 453 to collide and vibrate the bolt.

[0052] As shown in Figure 8 , the auxiliary member 45 further comprises an auxiliary plate 455 fixedly connected to the end portions of the two auxiliary rods 453, and the auxiliary plate 455 is located in the clamping groove 2.

[0053] Specifically, since the nut needs to be clamped in the clamping groove 2, there is a gap between the nut and the clamping groove 2, and when the nut is twisted, the clamping groove 2 and the nut are in line contact, and the contacted part bears a large force, which causes the nut or the inner wall of the clamping groove 2 to be easily deformed; when the nut is twisted, the external gas supply device supplies gas to the mounting groove 451, so that the auxiliary rod 453 drives the auxiliary plate 455 to contact the nut, and during the twisting process, the auxiliary plate 455 keeps contacting the nut, so that the contact between the nut and the clamping groove 2 changes from line contact to surface contact, and the stress is dispersed.

[0054] Through the setting of the auxiliary plate 455, the line contact in the process of twisting the nut is changed into surface contact, the stress is dispersed, the deformation of the nut and the clamping groove 2 is slowed down, and the service life of the tool and the nut is improved.

[0055] Further, the auxiliary plate 455 is detachably connected with the auxiliary rod 453.

[0056] Through the detachable connection of the auxiliary plate 455 and the auxiliary rod 453, the replacement of the auxiliary plate 455 is facilitated.

[0057] As another embodiment of the present application, as shown in Figure 8 The mounting groove 451 is provided with a threaded groove in communication with the side wall away from the nut, the threaded groove is in communication with the external space, a threaded rod 48 is threadedly connected in the threaded groove, and the threaded rod 48 is rotationally connected with the sliding plate 452.

[0058] Specifically, in use, the threaded rod 48 is rotated to make the threaded rod 48 close to the nut, the threaded rod 48 drives the sliding plate 452 and the auxiliary rod 453 to move, so that the auxiliary plate 455 is kept in contact with the nut in the process of twisting, the line contact is changed into surface contact in the process of twisting the nut, and the stress is dispersed.

[0059] Through the setting of the threaded rod 48, the pressure applied to the auxiliary rod 453 is more stable, and the pressure of the auxiliary plate 455 on the nut is ensured.

[0060] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0061] In addition, it should be further pointed out that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0062] The term "comprising" or any other similar word is intended to encompass the inclusion of one or more steps, features, or elements but not to the exclusion of any other steps, features, or elements. The term "comprising" therefore indicates that the inclusion of one or more steps, features, or elements is not a requirement and that other steps, features, or elements can also be included.

[0063] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without deviating from the principles of the present application, and the technical solutions after these changes or replacements will all fall within the protection scope of the present application.

Claims

1. A nut-removing tool characterized by comprising: Including the dog, the U-shaped clamping groove is opened in the dog, the middle segment of the dog is fixedly connected with the rod body, the vibration mechanism is arranged in the rod body, the vibration mechanism comprises a sliding groove opened in the rod body, the vibration rod is slidably connected in the sliding groove, the communication hole is opened in the dog, the communication hole is communicated with the sliding groove, the vibration plate is slidably connected in the communication hole, and the vibration plate is fixedly connected with the vibration rod.

2. A nut runner according to claim 1, characterised in that Two auxiliary pieces are symmetrically arranged in the dog, the auxiliary piece comprises two installation grooves symmetrically opened in the dog, the sliding plate is slidably connected in each installation groove, the auxiliary rod is fixedly connected on each sliding plate, the installation groove is fixedly connected with the fixed ring at one end close to the clamping groove, the auxiliary rod is slidably connected in the fixed ring, and the auxiliary rod can enter the clamping groove.

3. A nut runner according to claim 2, wherein, The power piece is arranged in the sliding groove, the power piece comprises an interface arranged at one end of the sliding groove away from the dog, the interface is communicated with the external gas supply device, the electromagnetic valve is arranged in the sliding groove, the end of the vibration rod is fixedly connected with the push plate, the push plate is slidably connected with the inner wall of the sliding groove, and the first spring is connected between the push plate and the inner wall of the sliding groove.

4. A nut runner according to claim 1, wherein The gas hole is arranged in communication between the sliding groove and the communication hole, eight gas holes are uniformly arranged in the circumferential direction, and the vibration plate can close the gas hole.

5. A nut runner according to claim 3, wherein, The power piece further comprises a communication groove arranged in communication on the inner wall of the sliding groove, the other end of the communication groove is communicated with the installation groove, the communication groove is located on the side of the electromagnetic valve close to the nut, and the second spring is connected between the sliding plate and the fixed ring.

6. A nut runner according to claim 2, wherein The auxiliary piece further comprises an auxiliary plate fixedly connected at the ends of the two auxiliary rods, and the auxiliary plate is located in the clamping groove.

7. A nut runner according to claim 6, wherein, The auxiliary plate and the auxiliary rod are detachably connected.

8. A nut runner according to claim 6, wherein, The side wall of the installation groove away from the nut is arranged in communication with a threaded groove, the threaded groove is communicated with the external space, the threaded rod is threadedly and matchingly connected in the threaded groove, and the threaded rod is rotatably connected with the sliding plate.

Images