Leveling device

Abstract

The application discloses a flattening device and belongs to the technical field of plate adjusting equipment. The flattening device comprises a connecting part, a matching part and a flattening coil. The first end of the matching part is connected with the flattening coil, and the second end of the matching part, which is far away from the flattening coil, is detachably connected with the connecting part. The second end of the matching part is provided with a plurality of movable protruding parts, and the second end of the connecting part, which faces the matching part, is provided with an engaging part. The protruding parts are detachably clamped in the engaging part. The protruding parts of the matching part are detachably clamped in the engaging part of the connecting part, so that the connecting part and the matching part are connected in a buckle mode. Since the protruding parts are movable, when the flattening coil needs to be replaced, the protruding parts are removed from the engaging part, so that the connecting part and the matching part are separated. After other flattening coils are replaced, the matching part is clamped on the connecting part, so that the flattening coils are quickly disassembled and assembled. Different types of flattening coils can be replaced in time and efficiently according to the operation needs, and the operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sheet adjusting equipment, in particular to a flattening device. BACKGROUND

[0002] High-frequency flattening refers to eliminating the deformation of the sheet structure by using the principle of electromagnetic induction. When the sheet to be flattened passes through a high-speed changing magnetic field, an induced current is generated, thereby generating Joule heat, and the temperature of the sheet to be flattened rises rapidly, the sheet expands and plastically deforms, and when the sheet cools down, it shrinks and stretches the surrounding material to achieve the flattening effect.

[0003] The flattening coil in the flattening device is used to generate a high-frequency magnetic field, but the existing flattening coil is connected with the fixed support through bolts, which is difficult to replace and cannot meet the needs of multiple flattening working conditions in a short time, affecting the operation efficiency. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the defect that the flattening coil is difficult to replace in the prior art, and to provide a flattening device that can be quickly disassembled and assembled.

[0005] The present application solves the above technical problems by the following technical solutions:

[0006] A flattening device comprises a connecting part, a matching part and a flattening coil; wherein the first end of the matching part is connected with the flattening coil, and the second end of the matching part away from the flattening coil is detachably connected with the connecting part; the second end of the matching part is provided with a plurality of movable protruding parts, and the connecting part is provided with an engaging part toward the second end of the matching part, and the protruding parts are detachably clamped in the engaging part.

[0007] In this scheme, the connecting part and the matching part are connected by buckle by clamping the protruding parts of the matching part in the engaging part of the connecting part. Since the protruding parts are movable, when the flattening coil needs to be replaced, the connecting part and the matching part can be separated by removing the protruding parts from the engaging part. After replacing the flattening coil, the matching part can be clamped on the connecting part, realizing the quick disassembly and assembly of the flattening coil. It is convenient to replace different types of flattening coils in time and efficiently according to the operation needs, improving the operation efficiency.

[0008] Preferably, the matching part comprises a surrounding plate and an elastic member; the protruding part is a clamping plate, which is rotatably arranged on the inner circumferential surface of the surrounding plate; and the elastic member biases the clamping plate in the direction of rotating toward the connecting part.

[0009] In the present solution, since the clamping plate is rotatable relative to the inner circumferential surface of the enclosing plate, when the connecting part and the cooperating part move towards each other, the connecting part presses the clamping plate, and the clamping plate rotates towards the inner circumferential surface of the enclosing plate, and at the same time the elastic member is compressed, when the engaging part moves past the bottom of the clamping plate, the elastic member releases the elastic force, and the clamping plate is biased to rotate towards the connecting part, thereby abutting against the engaging part, and the connecting part and the cooperating part are connected. In addition, when the elastic member is compressed again, the clamping plate can be pulled out of the engaging part, thereby separating the connecting part and the cooperating part.

[0010] Preferably, the cooperating part comprises an enclosing plate, and the protruding part comprises a pressing slope, which is inclined in a direction towards the center of the enclosing plate and away from the connecting part; the protruding part is telescopically arranged on the inner circumferential surface of the enclosing plate, so that the pressing slope can be telescoped between the inner circumferential surface of the enclosing plate and the center of the enclosing plate.

[0011] In the present solution, since the pressing slope of the protruding part can be telescoped between the inner circumferential surface of the enclosing plate and the center of the enclosing plate, when the connecting part and the cooperating part move towards each other, the connecting part abuts against the pressing slope, and the pressing slope is pushed to retract towards the inner circumferential surface of the enclosing plate, when the engaging part moves past the bottom of the protruding part, the pressing slope extends towards the center of the enclosing plate, thereby abutting against the engaging part, and the connecting part and the cooperating part are connected. In addition, when the pressing slope retracts again towards the inner circumferential surface of the enclosing plate, the pressing slope can be pulled out of the engaging part, thereby separating the connecting part and the cooperating part.

[0012] Preferably, the flattening device further comprises a removing part, the removing part comprises a pressing part and a pressing cylinder, the pressing part is connected with the pressing cylinder; wherein the pressing part is slidably connected with the connecting part, so that the removing part can move in a direction approaching the cooperating part and away from the cooperating part; the pressing cylinder is directed to the protruding part, when the pressing part is pressed, the pressing cylinder abuts against the protruding part, and drives the protruding part to separate from the engaging part.

[0013] In the present solution, through the above structure, when it is necessary to disassemble the flattening device, the pressing part is pressed, and the pressing part drives the pressing cylinder to move in the direction of the cooperating part (or the protruding part), when the pressing cylinder abuts against the protruding part, the protruding part will be rotated or retracted to separate from the engaging part, so as to separate the connecting part and the cooperating part.

[0014] Preferably, the cooperating part comprises an enclosing plate and an electromagnet; the protruding part is a clamping plate, which is rotatably arranged on the inner circumferential surface of the enclosing plate; the electromagnet drives the clamping plate in a direction of rotating towards the connecting part.

[0015] In the present scheme, the rotation of the clamping plate is controlled by the electromagnet. A magnet is arranged on the clamping plate, and an electromagnet is arranged on the inner circumferential surface of the surrounding plate. When the power is off, the clamping plate is attached to the inner circumferential surface of the surrounding plate, and the connecting part is easily inserted into the surrounding plate. When the connecting part and the cooperating part move towards each other and the engaging part moves beyond the bottom of the clamping plate, the power is turned on, the electromagnet repels the magnet on the clamping plate, and the clamping plate rotates in the direction of the connecting part, so as to abut against the engaging part, and the connecting part and the cooperating part are connected. In addition, when the power is turned off, the clamping plate is no longer repelled by the electromagnet, and the clamping plate is pulled out of the engaging part, so that the connecting part and the cooperating part are separated.

[0016] Preferably, the cooperating part comprises a surrounding plate, and the protruding part is a clamping tooth arranged on the inner circumferential surface of the surrounding plate. The clamping tooth comprises a pressing slope inclined in the direction of the center of the surrounding plate and away from the connecting part. The clamping tooth is made of a deformable material.

[0017] In the present scheme, since the clamping tooth is made of a deformable material, when the connecting part and the cooperating part move towards each other, the connecting part abuts against the pressing slope and pushes the pressing slope to deform and compress. When the engaging part moves beyond the bottom of the clamping tooth, the pressing slope returns to its original state, so that the clamping tooth abuts against the engaging part, and the connecting part and the cooperating part are connected. In addition, when the clamping tooth is deformed again, the clamping tooth can be pulled out of the engaging part, so that the connecting part and the cooperating part are separated.

[0018] Preferably, the clamping tooth is made of a high-temperature-resistant rubber.

[0019] In the present scheme, the clamping tooth is made of rubber, so that the clamping tooth can deform and has a certain structural strength, so as to support the engaging part after the clamping tooth is clamped on the connecting part and the cooperating part. The high-temperature-resistant rubber makes the clamping tooth adapt to the high-temperature working environment.

[0020] Preferably, the connecting part comprises a body and a head, the head is connected to the body, and the head points to the cooperating part. The edge of the side where the head is connected to the body extends out of the body, so as to form a stepped engaging part between the head and the body.

[0021] In the present scheme, the head of the connecting part is used to abut against and push the protruding part to rotate, retract or compress. When the head of the connecting part moves beyond the bottom of the protruding part, the protruding part recovers and abuts against the stepped engaging part formed between the head and the body, so as to connect the connecting part and the cooperating part.

[0022] Preferably, the connecting part comprises a body and a head, the head is connected to the body, and the head points to the cooperating part. A groove is arranged around the circumferential side of the head to form the engaging part.

[0023] In the scheme, the head of the connecting part is used to abut and push the convex part to rotate, retract or compress, when the head of the connecting part moves over the bottom of the convex part, the convex part is restored and abuts in the groove arranged on the circumferential side of the head, so that the connecting part and the cooperating part are connected.

[0024] Preferably, the end face of the flattening coil is rectangular, triangular or circular.

[0025] In the scheme, the end face of the flattening coil is of different shapes, and the flattening device can meet the needs of various flattening working conditions by replacing different flattening coils.

[0026] The positive progress effect of the present application is that:

[0027] The present application realizes the quick disassembly and assembly of the flattening coil by detachably clamping the convex part of the cooperating part in the engaging part of the connecting part, since the convex part is movable, the connecting part and the cooperating part can be separated by removing the convex part from the engaging part when the flattening coil needs to be replaced, and the cooperating part can be clamped on the connecting part after replacing other flattening coil, so that the operation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a front view structural schematic diagram of the flattening device of the preferred embodiment of the present application, wherein the connecting part and the cooperating part are separated.

[0029] Figure 2 It is a perspective structural schematic diagram of the flattening device of the preferred embodiment of the present application, wherein the connecting part and the cooperating part are separated.

[0030] Explanation of reference signs:

[0031] Connecting part 100

[0032] Body 110

[0033] Head 120

[0034] Engaging part 130

[0035] Cooperating part 200

[0036] Surrounding plate 210

[0037] Convex part 220

[0038] Flattening coil 300

[0039] Removal part 400

[0040] Pressing part 401

[0041] Pressing cylinder 402 DETAILED DESCRIPTION

[0042] The present application is further illustrated by the following examples without limiting the present application to the examples.

[0043] As shown in Figure 1 and Figure 2 The present embodiment provides a flattening device, comprising a connecting part 100, a matching part 200 and a flattening coil 300; wherein the first end of the matching part 200 is connected with the flattening coil 300, and the second end of the matching part 200 away from the flattening coil 300 is detachably connected with the connecting part 100; the second end of the matching part 200 is provided with a plurality of movable protruding parts 220, and the second end of the matching part 200 is provided with an engaging part 130, and the protruding parts 220 are detachably clamped in the engaging part 130.

[0044] Thus, by detachably clamping the protruding parts 220 of the matching part 200 in the engaging part 130 of the connecting part 100, the connecting part 100 and the matching part 200 are snap-fit connected, and since the protruding parts 220 are movable, when the flattening coil 300 needs to be replaced, the protruding parts 220 are removed from the engaging part 130 to separate the connecting part 100 and the matching part 200, and after replacing the flattening coil 300, the matching part 200 is clamped on the connecting part 100, which realizes quick disassembly and assembly of the flattening coil 300, facilitates timely and efficient replacement of different types of flattening coils 300 according to the work needs, and improves work efficiency.

[0045] In the present embodiment, the matching part 200 comprises a surrounding plate 210 and an elastic part; the protruding part 220 is a clamping plate which is rotatably arranged on the inner circumferential surface of the surrounding plate 210; and the elastic part biases the clamping plate in the direction of rotating towards the connecting part 100.

[0046] Specifically, the surrounding plate 210 is annular and has a receiving space in which the connecting part 100 can extend, one side of the surrounding plate 210 is welded on the flattening coil 300, and the other side faces the connecting part 100. A clamping plate is arranged on the inner circumferential surface of the surrounding plate 210, and the clamping plate is inclined in a direction towards the center of the surrounding plate 210 and away from the connecting part 100, that is, the side of the clamping plate close to the connecting part 100 is connected to the inner circumferential surface of the surrounding plate 210, and the side of the clamping plate away from the connecting part 100 points to the center of the surrounding plate 210. Further, the inner circumferential surface of the surrounding plate 210 is provided with a connecting shaft parallel to the connecting part 100, and the side of the clamping plate close to the connecting part 100 is provided with a connecting cylinder, the connecting cylinder of the clamping plate is sleeved on the connecting shaft of the inner circumferential surface of the surrounding plate 210, so that the clamping plate can rotate relative to the inner circumferential surface of the surrounding plate 210; the side of the clamping plate away from the connecting part 100 is connected to the inner circumferential surface of the surrounding plate 210 by an elastic component (not shown in the figure). In this embodiment, the elastic component is a spring, and in other alternative embodiments, the elastic component can be any other device that can drive the clamping plate to rotate in the direction towards the connecting part 100.

[0047] Therefore, since the clamping plate can rotate relative to the inner circumferential surface of the surrounding plate 210, when the connecting part 100 moves towards the cooperating part 200 and the connecting part 100 extends into the surrounding plate 210, the connecting part 100 presses the clamping plate, the clamping plate rotates in the direction close to the inner circumferential surface of the surrounding plate 210, and the spring is compressed at the same time. When the side of the clamping plate away from the connecting part 100 moves past the engaging part 130, the spring releases the elastic force and biases the clamping plate to rotate in the direction towards the connecting part 100, so as to abut against the engaging part 130, thereby completing the connection between the connecting part 100 and the cooperating part 200. When the elastic component is compressed again, the clamping plate can be pulled out of the engaging part 130, thereby separating the connecting part 100 and the cooperating part 200.

[0048] In this embodiment, the connecting part 100 is a cuboid structure, and correspondingly, the surrounding plate 210 surrounds a receiving space with a rectangular cross section. Of course, in other alternative embodiments, the shape of the surrounding plate 210 can be adjusted according to the shape of the connecting part 100. In addition, the number of the protruding parts 220 can also be adjusted according to actual work requirements. In this embodiment, one clamping plate is arranged on each of the four inner circumferential surfaces of the surrounding plate 210.

[0049] In other alternative embodiments, the protruding part 220 can also be telescopic relative to the surrounding plate 210 in the horizontal direction to replace the structure in which the protruding part 220 is rotatably arranged on the inner circumferential surface of the surrounding plate 210. That is, the protruding part 220 includes a pressing inclined surface inclined in a direction towards the center of the surrounding plate 210 and away from the connecting part 100; and the protruding part 220 is telescopic arranged on the inner circumferential surface of the surrounding plate 210, so that the pressing inclined surface can be telescopic between the inner circumferential surface of the surrounding plate 210 and the center of the surrounding plate 210.

[0050] Specifically, a hole is opened on the inner circumferential surface of the enclosure 210, a slide rail is arranged through the hole and points to the center of the enclosure 210, the protruding part 220 is arranged on the slide rail, so that the protruding part 220 can slide between the hole of the enclosure 210 and the center of the enclosure 210; at the same time, a spring is connected to the slide rail at the end of the protruding part 220 away from the center of the enclosure 210, when the connecting part 100 and the cooperating part 200 move towards each other, the connecting part 100 abuts against and presses the inclined surface, and pushes the inclined surface to retract into the hole of the inner circumferential surface of the enclosure 210, at this time, the spring is compressed, when the protruding part 220 moves past the joint part 130, the spring releases the elastic force, the protruding part 220 (or the inclined surface) extends towards the center of the enclosure 210, so as to abut against the joint part 130, so that the connecting part 100 and the cooperating part 200 are connected. When the spring is compressed again, the protruding part 220 (or the inclined surface) retracts into the hole of the inner circumferential surface of the enclosure 210 again, so that the inclined surface is separated from the joint part 130, so that the connecting part 100 and the cooperating part 200 are separated.

[0051] Specifically, the connecting part 100 includes a body 110 and a head part 120, the body 110 is connected with the head part 120, and the head part 120 points to the cooperating part 200; the edge of the side where the head part 120 is connected with the body 110 extends out of the body 110, so that the joint part 130 in the form of a step is formed between the head part 120 and the body 110.

[0052] The head part 120 of the connecting part 100 is used to abut against and apply force to the protruding part 220, in this embodiment, when the cooperating part 200 moves close to the connecting part 100, the head part 120 will abut against the clamping plate and make the clamping plate rotate towards the direction close to the inner circumferential surface of the enclosure 210, and at the same time, the spring is compressed, when the side of the clamping plate away from the connecting part 100 moves past the head part 120, the spring releases the elastic force, and the clamping plate is biased to rotate towards the direction of the body 110 of the connecting part 100, so that the clamping plate abuts against the joint part 130 in the form of a step between the head part 120 and the body 110, so that the connecting part 100 and the cooperating part 200 are connected.

[0053] In other alternative embodiments, a groove can also be arranged around the circumferential side of the head part 120 to form the joint part 130, instead of the form that the joint part 130 in the form of a step is formed between the head part 120 and the body 110.

[0054] Further, in order to make the protruding part 220 can be from the joint part 130 out, the flattening device also includes a removal part 400, the removal part 400 includes a pressing part 401 and a pressure cylinder 402, the pressing part 401 is connected with the pressure cylinder 402; wherein, the pressing part 401 is slidably connected on the connecting part 100, so that the removal part 400 can move in the direction of approaching the fitting part 200 and moving away from the fitting part 200; the pressure cylinder 402 points to the protruding part 220.

[0055] Specifically, the pressing part 401 is annular, and is sleeved on the body 110 of the connecting part 100, and a sliding block is arranged on the side of the pressing part 401 facing the body 110, and a corresponding sliding rail is arranged on the body 110, so that the pressing part 401 can slide relative to the body 110. When it is needed to disassemble the flattening device, the pressing part 401 is pressed, the pressing part 401 drives the pressure cylinder 402 to move in the direction of the fitting part 200 (or the clamping plate), the pressure cylinder 402 abuts against the clamping plate, and drives the clamping plate to rotate in the direction of approaching the inner circumferential surface of the enclosing plate 210, and is separated from the joint part 130.

[0056] Further, the end of the body 110 away from the head part 120 is connected with the support structure of the flattening device through an elastic member, so that the body 110 and the support structure can relatively move, when the pressure cylinder 402 abuts against the clamping plate and drives the clamping plate to rotate in the direction of approaching the inner circumferential surface of the enclosing plate 210, the clamping plate will abut against the head part 120, and drives the head part 120 to move towards the flattening coil 300, because the body 110 and the support structure are connected through the elastic member, so that the head part 120 can displace a certain distance, so that the clamping plate can be separated from the joint part 130.

[0057] It can be understood that in the embodiment in which the protruding part 220 extends and retracts in the horizontal direction relative to the enclosing plate 210, the head part 120 of the connecting part 100 is used to abut against and apply force to the pressing inclined surface of the protruding part 220, and pushes the pressing inclined surface to retract into the opening in the inner circumferential surface of the enclosing plate 210, at this time the spring is compressed, when the protruding part 220 moves beyond the head part 120, the spring releases the elastic force, the protruding part 220 (or the pressing inclined surface) extends towards the center of the enclosing plate 210, and abuts in the joint part 130, so that the connecting part 100 and the fitting part 200 are connected. Because the protruding part 220 does not involve movement towards or away from the connecting part 100, the body 110 and the support structure of the flattening device do not need to be relatively movably arranged, when it is needed to disassemble the flattening device, the pressing part 401 is pressed, the pressing part 401 drives the pressure cylinder 402 to move in the direction of the fitting part 200 (or the protruding part 220), the pressure cylinder 402 abuts against the pressing inclined surface, and drives the protruding part 220 (or the pressing inclined surface) to retract into the opening in the inner circumferential surface of the enclosing plate 210 again, so that the pressing inclined surface is separated from the joint part 130, and the connecting part 100 and the fitting part 200 are separated.

[0058] In other alternative embodiments, the matching part 200 comprises a surrounding plate 210 and an electromagnet, and the protruding part 220 is a clamping plate rotatably arranged on the inner circumferential surface of the surrounding plate 210; the electromagnet drives the clamping plate in a direction towards the connecting part 100 to electrically control the movement of the protruding part 220, avoiding the complexity of manual operation of the removing part 400.

[0059] Specifically, the clamping plate is inclined in a direction towards the center of the surrounding plate 210 and away from the connecting part 100, the side of the clamping plate close to the connecting part 100 is connected to the inner circumferential surface of the surrounding plate 210, and the side of the clamping plate away from the connecting part 100 points to the center of the surrounding plate 210. A connecting shaft parallel to the connecting part 100 is arranged on the inner circumferential surface of the surrounding plate 210, a connecting cylinder is arranged on the side of the clamping plate close to the connecting part 100, the connecting cylinder of the clamping plate is sleeved on the connecting shaft on the inner circumferential surface of the surrounding plate 210, a magnet is arranged on the side of the clamping plate away from the connecting part 100, and a corresponding electromagnet is arranged on the inner circumferential surface of the surrounding plate 210. When the power is off, the clamping plate is attached to the inner circumferential surface of the surrounding plate 210, facilitating the extension of the connecting part 100 into the surrounding plate 210, when the connecting part 100 moves towards the matching part 200 and the side of the clamping plate away from the connecting part 100 moves past the joint part 130, the power is started, the electromagnet repels the magnet on the clamping plate, driving the clamping plate to rotate in a direction towards the body 110 of the connecting part 100, so that the clamping plate abuts in the joint part 130, and the connecting part 100 and the matching part 200 are connected. When the power is off, the clamping plate is no longer repelled by the electromagnet, and the body 110 is moved a certain distance towards the flattening coil 300, so that the clamping plate rotates towards the inner circumferential surface of the surrounding plate 210, so that the clamping plate is detached from the joint part 130, and the connecting part 100 and the matching part 200 are separated.

[0060] Further, in order to make the structure of the flattening device simpler, in other alternative embodiments, the clamping tooth made of deformable material is used as the protruding part 220, the clamping tooth is arranged on the inner circumferential surface of the surrounding plate 210, and the clamping tooth comprises a pressing slope inclined in a direction towards the center of the surrounding plate 210 and away from the connecting part 100.

[0061] Since the clamping tooth is made of deformable material, when the connecting part 100 moves towards the matching part 200, the connecting part 100 abuts against the pressing slope and pushes the pressing slope to deform and compress, when the clamping tooth moves past the joint part 130, the pressing slope returns to its original state, so that the clamping tooth abuts in the joint part 130, and the connecting part 100 and the matching part 200 are connected. When it is necessary to disassemble the flattening device, an external force away from the connecting part 100 is applied to the flattening coil 300 or the matching part 200, so that the clamping tooth is deformed again, and the clamping tooth is detached from the joint part 130, so that the connecting part 100 and the matching part 200 are separated.

[0062] Further, the clamping tooth is made of high-temperature-resistant rubber. The clamping tooth is made of rubber, which can deform and has certain structural strength, so that the clamping tooth can be supported in the joint portion 130 after the clamping of the connecting portion 100 and the matching portion 200; the high-temperature-resistant rubber makes the clamping tooth adapt to the high-temperature working environment.

[0063] In addition, the end face of the flattening coil 300 is rectangular in the embodiment, and in other optional embodiments, the end face of the flattening coil 300 can be triangular, circular or other shapes, so that the flattening device can meet the needs of various flattening working conditions by replacing different flattening coils 300.

[0064] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0065] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and such changes and modifications all fall within the protection scope of the present application.

Claims

1. A leveling device, characterized in that, It includes a connecting part, a mating part, and a leveling coil; Wherein, the first end of the mating part is connected to the leveling coil, and the second end of the mating part away from the leveling coil is detachably connected to the connecting part; The second end of the mating part is provided with a plurality of movable protrusions, and the connecting part is provided with a joint part facing the second end of the mating part, and the protrusions are detachably snapped into the joint part; The mating part includes a surrounding plate and an elastic component; The protrusion is a retaining plate, which is rotatably mounted on the inner circumferential surface of the enclosure. The elastic member biases the card plate in a direction that causes the card plate to rotate toward the connecting portion; The leveling device further includes a removal part, which includes a pressing part and a pressure cylinder, and the pressing part is connected to the pressure cylinder. The pressing part is slidably connected to the connecting part, so that the removing part can move in directions close to and away from the mating part; The pressure cylinder points towards the protrusion. When the pressing part is pressed, the pressure cylinder abuts against the protrusion and drives the protrusion to disengage from the joint.

2. The leveling device as described in claim 1, characterized in that, The mating part includes a surrounding plate, and the protrusion includes a pressing slope, which is inclined in a direction toward the center of the surrounding plate and away from the connecting part; The protrusion is retractably disposed on the inner circumferential surface of the enclosure, so that the pressing slope can extend and retract between the inner circumferential surface of the enclosure and the center of the enclosure.

3. The leveling device as described in claim 1, characterized in that, The mating part includes a surrounding plate and an electromagnet; The protrusion is a retaining plate, which is rotatably mounted on the inner circumferential surface of the enclosure. The electromagnet drives the card plate in a direction that causes the card plate to rotate toward the connecting part.

4. The leveling device as described in claim 1, characterized in that, The mating part includes a surrounding plate, and the protrusion is a locking tooth, which is disposed on the inner circumferential surface of the surrounding plate; The locking teeth include pressing bevels that are inclined toward the center of the enclosure and away from the connecting portion; The teeth are made of a deformable material.

5. The leveling device as described in claim 4, characterized in that, The locking teeth are made of high-temperature resistant rubber.

6. The leveling device as described in claim 1, characterized in that, The connecting part includes a body and a head, the body is connected to the head, and the head points towards the mating part; The edge of the side where the head connects to the body extends out of the body, so that a stepped joint is formed between the head and the body.

7. The leveling device as described in claim 1, characterized in that, The connecting part includes a body and a head, the body is connected to the head, and the head points towards the mating part; A groove is provided around the periphery of the head to form the joint.

8. The leveling device as described in claim 1, characterized in that, The end face of the leveling coil is rectangular, triangular, or circular.

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