Kiln door lifting, sealing and heat preservation device

Abstract

The utility model discloses a kiln door lifting, sealing and heat-preserving device, which belongs to the technical field of kiln structures, and comprises a kiln door rotationally connected with a plurality of first pulleys; the connecting frame comprises a frame body and a plurality of connecting arms, one end of each connecting arm is rotationally connected with the frame body, the other end of each connecting arm is rotationally connected with the kiln door, and the frame body is rotationally connected with a plurality of second pulleys; the limiting frame comprises a first sliding rail and a second sliding rail which are arranged front and back at an interval, the first sliding rail can be in sliding connection with the first pulley, and the second sliding rail is in sliding connection with the second pulley; and the lifting drive is in transmission connection with the frame body and used for driving the frame body to ascend and descend along the second sliding rail, the shaking amplitude of the kiln door in the action process is reduced, and the action stability of the kiln door is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kiln structures, in particular to a kiln door lifting, sealing and heat-insulating device. Background Art

[0002] The lifting mechanism and clamping mechanism of traditional kiln doors are independent of each other and need to be operated by different driving actuators. The action sequence of the lifting mechanism and the clamping mechanism requires additional detection systems and control systems to ensure that there are no failures. There are disadvantages in terms of action reliability, and the equipment cost and use cost are high.

[0003] In the related art, some kiln doors use a single drive to achieve the lifting and lowering of the kiln door, as well as the sealing or separation of the kiln door and the kiln body. However, this type of kiln door driving mechanism generally has the problem of large shaking of the kiln door during operation, and the kiln door is prone to scratches with other components. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a kiln door lifting, sealing and heat preservation device, which is conducive to reducing the shaking amplitude of the kiln door during the movement process and improving the stability of the kiln door movement.

[0005] The kiln door lifting, sealing and heat preservation device according to the embodiment of the utility model includes: a kiln door, which is rotatably connected to a plurality of first pulleys; a connecting frame, including a frame body and a plurality of connecting arms, one end of the connecting arm is rotatably connected to the frame body, and the other end of the connecting arm is rotatably connected to the kiln door, and the frame body is rotatably connected to a plurality of second pulleys; a limiting frame, including a first slide rail and a second slide rail arranged at intervals in front and back, the first slide rail can be slidably connected to the first pulley, and the second slide rail is slidably connected to the second pulley; a lifting drive, which is transmission-connected to the frame body to drive the frame body to lift and lower along the second slide rail.

[0006] The kiln door lifting, sealing and heat-insulating device according to the embodiment of the utility model has at least the following beneficial effects: the connecting frame includes a frame and a plurality of connecting arms, one end of the connecting arm is rotatably connected to the frame, and the other end of the connecting arm is rotatably connected to the kiln door, that is, the frame is connected to the kiln door through the plurality of connecting arms, which is beneficial to improving the connection stability between the frame and the kiln door. The kiln door lifting, sealing and heat-insulating device also includes a limiting frame, the limiting frame includes a first slide rail and a second slide rail arranged in a front-to-back interval, the second slide rail is slidably connected to the second pulley, and under the driving action of the lifting drive, the frame can be lifted and lowered along the second slide rail, when the lifting drive drives the frame to move up along the second slide rail, the connecting arm swings relative to the frame and the kiln door, under the connecting action of the connecting arm, the kiln door approaches the frame to realize the separation of the kiln door and the external kiln body, and as the kiln door approaches the frame, the first pulley can abut and slide against the first slide rail, and cooperate with the sliding connection between the second pulley and the second slide rail, so that the kiln door moves up synchronously with the frame, and when the lifting drive drives the frame to move up along the second slide rail When the second slide rail slides down, under the connecting action of the connecting arm, the sliding connection between the second pulley and the second slide rail and the sliding connection between the first pulley and the first slide rail can make the kiln door descend synchronously with the frame until the lower end of the kiln door abuts against a supporting plane such as the ground. As the frame continues to move downward, the connecting arm swings relative to the frame and the kiln door. Under the connecting action of the connecting arm, the first pulley is separated from the first slide rail and the kiln door is separated from the frame, so that the kiln door can be pressed against the kiln body to achieve the sealing of the kiln door to the kiln body. That is, the kiln door lifting, sealing and heat-insulating device can drive the lifting and lowering of the kiln door, as well as the pressing and separation of the kiln door and the kiln body through one lifting drive. The lifting and lateral movement of the kiln door is more reliable, and the connection between the kiln door and the frame is achieved through multiple connecting arms, which is beneficial to improving the connection stability of the kiln door and the frame. The sliding connection between the first pulley and the first slide rail and the sliding connection between the second pulley and the second slide rail can reduce the shaking of the kiln door during the lifting process and reduce the scratches caused by the kiln door to other components.

[0007] According to some embodiments of the utility model, the second slide rail includes two slide grooves with openings arranged facing each other, both ends of the slide grooves extend up and down, and the left and right sides of the frame are rotatably connected to the second pulleys, which are arranged in the slide grooves and slidably connected to the slide grooves.

[0008] Specifically, the second slide rail includes two slide grooves with openings facing each other, and the two ends of the slide grooves are extended up and down. The left and right sides of the frame are adapted to be rotatably connected with second pulleys, and the second pulley is arranged in the slide groove. The outer circumference of the second pulley abuts against the inner circumference of the second slide groove, thereby limiting the lateral movement of the frame and the limit frame, thereby limiting the movement of the frame relative to the limit frame to the sliding in the up and down directions. Under the rotation connection of the connecting arm, the frame and the kiln door, the lifting and lowering part of the frame can be converted into lateral movement of the kiln door relative to the frame, thereby realizing the sealing and separation function of the kiln door and the kiln body. The cooperation of the second pulley and the slide groove is conducive to reducing the shaking of the kiln door during the lifting process, and is conducive to improving the stability of the kiln door movement.

[0009] According to some embodiments of the present utility model, the limiting frame includes a containing space, the containing space is arranged between the first slide rail and the second slide rail, and the lifting drive is arranged in the containing space.

[0010] A accommodating space is provided on the limiting frame between the first slide rail and the second slide rail, and the lifting drive is provided in the accommodating space, which is beneficial to reducing the footprint of the kiln door lifting, sealing and heat-insulating device, and because the accommodating space is provided between the second slide rail and the first slide rail, the limiting effect of the first slide rail on the first pulley is beneficial to avoiding the problem of collision of the lifting drive when the kiln door is close to the frame, which is beneficial to improving the reliability of the kiln door lifting, sealing and heat-insulating device.

[0011] According to some embodiments of the utility model, the kiln door lifting, sealing and heat-insulating device includes two lifting drives, and the two lifting drives are respectively arranged on the left and right sides of the accommodating space.

[0012] Specifically, in order to improve the stability of driving the frame to lift, the kiln door lifting, sealing and insulation device includes two lifting drives, which are respectively arranged on the left and right sides of the accommodating space. The two lifting drives can simultaneously apply driving force to the left and right ends of the frame, which is conducive to making the lifting of the frame along the limit frame more stable and reliable.

[0013] According to some embodiments of the utility model, the lifting drive is an oil cylinder, and the movable end of the oil cylinder is connected to the frame.

[0014] Specifically, the lifting drive is an oil cylinder, and the movable end of the oil cylinder is connected to the frame. Through the extension and retraction of the oil cylinder, thrust and pulling forces can be applied to the lifting and lowering of the frame, which is beneficial to reduce the dependence on the deadweight of the frame and the kiln door. Under the extension and retraction drive of the oil cylinder, the stability of the pressing and separation of the kiln door and the kiln body can be improved, which is beneficial to improve the lifting and lowering of the kiln door, and the movement reliability of the pressing and separation of the kiln door and the kiln body.

[0015] According to some embodiments of the utility model, the left and right sides of the frame are both rotatably connected with a plurality of connecting arms; located on the left or right side of the frame, the plurality of connecting arms are arranged in an upper and lower interval.

[0016] Specifically, the left and right sides of the frame are rotatably connected with multiple connecting arms, and the multiple connecting arms located on the same side of the frame are arranged in an upper and lower interval. Under the connecting action of the multiple connecting arms, the kiln door, the multiple connecting arms and the frame together form a parallelogram structure, which is beneficial to improve the connection stability between the kiln door and the frame, and keeps the kiln door in a vertical state, which is beneficial to limit the swing of the kiln door relative to the frame, making the movement of the kiln door more stable and reliable.

[0017] According to some embodiments of the utility model, a plurality of first rotating seats are connected to the end surface of the kiln door close to the connecting frame, a plurality of second rotating seats are connected to the frame body, and both ends of the connecting arm are rotatably connected to the first rotating seat and the second rotating seat respectively.

[0018] A plurality of first rotating seats are connected to the end face of the kiln door close to the connecting frame, and a plurality of second rotating seats are connected to the frame body to match. The two ends of the connecting arm are rotatably connected to the first rotating seats and the second rotating seats respectively. By swinging the connecting arm relative to the frame body and the kiln door, the parallelogram formed by the connecting arm, the frame body and the kiln door can be deformed, so that the kiln door is moved closer to or away from the frame body, thereby realizing the separation or sealing of the kiln door and the kiln body, which is conducive to making the lifting and lateral movement of the kiln door more stable and reliable.

[0019] According to some embodiments of the present invention, the first rotating seat is detachably connected to the kiln door; and / or the second rotating seat is detachably connected to the frame.

[0020] Optionally, the first rotating seat is detachably connected to the kiln door, so that the user can choose connecting arms of different specifications or add connecting arms according to the specifications of the kiln door or usage requirements, which is beneficial to improving the existing kiln door structure, thereby improving the applicability of the kiln door lifting, sealing and heat-insulating device to different kilns; optionally, the second rotating seat is detachably connected to the frame, so that the user can choose connecting arms of different specifications or add connecting arms according to the specifications of the kiln door or usage requirements, which is beneficial to improving the existing kiln door structure, thereby improving the applicability of the kiln door lifting, sealing and heat-insulating device to different kilns.

[0021] According to some embodiments of the utility model, the limiting frame includes an oblique support, and an upper frame and a lower frame arranged up and down, the upper end of the oblique support is connected to the upper frame, and the lower end of the oblique support is connected to the lower frame.

[0022] The limit frame includes an inclined brace, and an upper frame and a lower frame arranged up and down, and the upper end of the inclined brace is connected to the upper frame, and the lower end of the inclined brace is connected to the lower frame. The connection of the inclined brace is helpful to improve the strength and rigidity of the limit frame, and is helpful to improve the service life of the kiln door lifting, sealing and insulation device.

[0023] According to some embodiments of the utility model, the lower end of the kiln door is rotatably connected to a plurality of third pulleys.

[0024] Specifically, the lower end of the kiln door is rotatably connected to a plurality of third pulleys, which are connected in a rolling manner to a supporting plane such as the ground, thereby assisting in achieving the kiln door's approach to or distance from the frame, that is, achieving separation or sealing of the kiln door from the kiln body, and thereby improving the reliability of the kiln door's movement.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0027] Figure 1 This is a structural schematic diagram of a kiln door lifting, sealing and heat preservation device according to an embodiment of the utility model;

[0028] Figure 2 It is a schematic diagram of the lateral structure of the kiln door lifting, sealing and heat-insulating device according to one embodiment of the utility model when the kiln door and the kiln body are pressed tightly;

[0029] Figure 3 It is a schematic diagram of the lateral structure of the kiln door and the kiln body of the kiln door lifting, sealing and heat-insulating device according to one embodiment of the utility model;

[0030] Figure 4 It is a structural schematic diagram of the connection between the connecting frame and the kiln door of the kiln door lifting sealing and heat-insulating device according to one embodiment of the utility model;

[0031] Figure 5 This is a structural schematic diagram of a frame of a kiln door lifting, sealing and heat-insulating device according to an embodiment of the utility model;

[0032] Figure 6 This is a structural schematic diagram of the connection between the kiln door and the frame and the limit frame of the kiln door lifting, sealing and heat-insulating device according to one embodiment of the utility model.

[0033] Figure Number:

[0034] 100, kiln door; 110, first pulley; 120, third pulley;

[0035] 200, connecting frame; 210, frame body; 211, second pulley; 220, connecting arm;

[0036] 300, limit frame; 310, first slide rail; 320, second slide rail; 321, slide slot; 330, upper shelf; 340, diagonal support; 350, lower shelf; 360, accommodation space;

[0037] 400, lifting drive;

[0038] 510, first rotating seat; 520, second rotating seat;

[0039] 600. Kiln body. DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0041] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0043] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0044] Reference Figures 1 to 6 As shown, a kiln door lifting, sealing and heat preservation device according to an embodiment of the utility model comprises: a kiln door 100, a connecting frame 200, a limiting frame 300 and a lifting drive 400. The kiln door lifting, sealing and heat preservation device can be applied to a kiln body 600 with an opening, and while driving the kiln door 100 to lift, the kiln door 100 can be driven to move closer to and farther from the kiln body 600, that is, the kiln door 100 can be sealed and separated from the kiln body 600.

[0045] Reference Figure 1 , Figure 2 and Figure 3As shown, specifically, the left and right sides of the kiln door 100 are rotatably connected with a plurality of first pulleys 110, and the plurality of first pulleys 110 are arranged in an up-and-down arrangement on the left or right side of the kiln door 100. The kiln door 100 may be built with fireproof material, and the kiln door 100 and the kiln body 600 may form a relatively closed heating space under the sealing effect of the kiln door 100 on the opening of the kiln body 600.

[0046] Reference Figure 1 , Figure 2 and Figure 3 As shown, the connecting frame 200 includes a frame body 210 and a plurality of connecting arms 220. The left and right sides of the frame body 210 are connected to the plurality of connecting arms 220. The connecting frame 200 is located behind the kiln door 100, on the left or right side of the frame body 210. The plurality of connecting arms 220 are arranged at intervals in an upper and lower manner. The rear end of the connecting arm 220 is rotatably connected to the frame body 210, and the front end of the connecting arm 220 is rotatably connected to the kiln door 100.

[0047] Reference Figure 1 , Figure 2 and Figure 3 As shown, the kiln door 100, a plurality of connecting arms 220 and the frame 210 together form a parallelogram structure. The stability of the parallelogram is used to limit the swing of the kiln door 100 relative to the frame 210, which is beneficial to improve the connection stability between the kiln door 100 and the frame 210, and the kiln door 100 and the frame 210 are made parallel to each other, that is, the kiln door 100 is kept in a vertical state, which is beneficial to limit the swing of the kiln door 100 relative to the frame 210, making the movement of the kiln door 100 more stable and reliable. The frame 210 is connected to the kiln door 100 through a plurality of connecting arms 220, which is beneficial to improve the connection stability between the frame 210 and the kiln door 100.

[0048] Reference Figure 1 , Figure 2 and Figure 3 As shown, the limiting frame 300 includes a first slide rail 310 and a second slide rail 320 arranged front and back, the second slide rail 320 maintains a sliding connection with the second pulley 211, and the first slide rail 310 can be connected to or separated from the first pulley 110. When the first slide rail 310 is connected to the first pulley 110, the first pulley 110 can achieve sliding cooperation with the first slide rail 310. The lifting drive 400 is transmission-connected to the frame body 210 to drive the frame body 210 to rise and fall along the second slide rail 320.

[0049] Reference Figure 1 , Figure 2 and Figure 3As shown, when the lifting drive 400 drives the frame 210 to move upward along the second slide rail 320, the connecting arm 220 swings relative to the frame 210 and the kiln door 100, so that the connecting arm 220 swings toward a state close to the vertical direction. Under the connecting action of the connecting arm 220, the kiln door 100 is moved closer to the frame 210 to achieve the separation of the kiln door 100 and the kiln body 600, and as the kiln door 100 approaches relative to the frame 210, the first pulley 110 can abut against and slide against the first slide rail 310, and cooperate with the sliding connection between the second pulley 211 and the second slide rail 320, so that the kiln door 100 moves upward synchronously with the frame 210.

[0050] Reference Figure 1 , Figure 2 and Figure 3 As shown, when the lifting drive 400 drives the frame 210 to slide down along the second slide rail 320, under the connecting action of the connecting arm 220, in cooperation with the sliding connection between the second pulley 211 and the second slide rail 320 and the sliding connection between the first pulley 110 and the first slide rail 310, the kiln door 100 can be synchronously lowered with the frame 210 until the lower end of the kiln door 100 abuts against a supporting plane such as the ground. As the frame 210 continues to move downward, the connecting arm 220 swings relative to the frame 210 and the kiln door 100, so that the connecting arm 220 swings toward a state close to the horizontal direction. Under the connecting action of the connecting arm 220, the first pulley 110 is separated from the first slide rail 310, and the kiln door 100 is moved away from the frame 210, so that the kiln door 100 can be pressed tightly against the kiln body 600 to achieve the sealing of the kiln door 100 to the kiln body 600.

[0051] Reference Figure 1 , Figure 2 and Figure 3 As shown, the kiln door lifting, sealing and heat-insulating device can drive the lifting of the kiln door 100, as well as the sealing and separation of the kiln door 100 and the kiln body 600 through a lifting drive 400, and has a low manufacturing cost. The lifting and lateral movement reliability of the kiln door 100 is higher, and the connection between the kiln door 100 and the frame 210 is achieved through multiple connecting arms 220, which is beneficial to improving the connection stability between the kiln door 100 and the frame 210. In combination with the sliding connection between the first pulley 110 and the first slide rail 310 and the sliding connection between the second pulley 211 and the second slide rail 320, it is beneficial to reduce the shaking of the kiln door 100 during the lifting process, and to reduce the scratches or damages caused by the kiln door 100 to other components.

[0052] Reference Figure 2 , Figure 3 and Figure 6As shown, it can be understood that the second slide rail 320 includes two slide grooves 321 with openings facing each other, that is, one of the slide grooves 321 is recessed to the left and has an opening to the right, and the other slide groove 321 is recessed to the right and has an opening to the left. The two ends of the slide groove 321 are extended up and down, and the left and right sides of the frame 210 are both rotatably connected with a plurality of second pulleys 211. The plurality of second pulleys 211 located on the left or right side of the frame 210 are arranged at intervals up and down. The second pulley 211 on the left side is arranged in the left slide groove 321 and is slidably connected to the left slide groove 321. The second pulley 211 on the right side is arranged in the right slide groove 321 and is slidably connected to the right slide groove 321.

[0053] Reference Figure 2 , Figure 3 and Figure 6 As shown, specifically, the second slide rail 320 includes two slide grooves 321 with openings facing each other, and the two ends of the slide grooves 321 are extended up and down. The left and right sides of the frame 210 are adapted to be rotatably connected with the second pulley 211, and the second pulley 211 is arranged in the slide groove 321. The outer circumference of the second pulley 211 and the inner circumference of the second slide groove 321 abut against each other, thereby limiting the lateral movement of the frame 210 and the limit frame 300, thereby adjusting the frame 210 relative to the limit frame The movement of 300 is limited to the sliding in the up and down directions. Under the rotation connection between the connecting arm 220, the frame 210 and the kiln door 100, the lifting and lowering part of the frame 210 can be converted into the lateral movement of the kiln door 100 relative to the frame 210, thereby realizing the sealing and separation function of the kiln door 100 and the kiln body 600. Through the cooperation of the second pulley 211 and the slide groove 321, it is helpful to reduce the shaking of the kiln door 100 during the lifting process, which is beneficial to improve the stability of the movement of the kiln door 100.

[0054] Reference Figure 2 , Figure 3 and Figure 6 As shown, it can be understood that the limit frame 300 includes two channel steels arranged at intervals on the left and right, and the two ends of the channel steels are extended up and down. The front end surfaces of the two channel steels can be used as the sliding surfaces of the first slide rail 310, and the rear end surfaces of the channel steels can be used as the inner wall surfaces of the slide groove 321 to form the first slide rail 310 and the second slide rail 320 arranged at intervals on the front and back.

[0055] Reference Figure 2 , Figure 3 and Figure 6 As shown, the channel steel can limit the displacement of the kiln door 100 relative to the frame 210. When the first pulley 110 abuts against the front end surface of the channel steel, the kiln door 100 can be limited from approaching the frame 210. In combination with the driving action of the lifting drive 400 and the sliding connection between the second pulley 211 and the second slide rail 320, the kiln door 100 and the frame 210 can be lifted and lowered synchronously.

[0056] Reference Figure 2 , Figure 3 and Figure 6 As shown, it can be understood that the limiting frame 300 includes a containing space 360 ​​, the containing space 360 ​​is disposed between the first slide rail 310 and the second slide rail 320 , and the lifting drive 400 is disposed in the containing space 360 ​​.

[0057] Reference Figure 2 , Figure 3 and Figure 6 As shown, the accommodating space 360 ​​is arranged between the first slide rail 310 and the second slide rail 320, and the lifting drive 400 is arranged in the accommodating space 360, which is beneficial to reducing the footprint of the kiln door lifting, sealing and heat-insulating device, making the structure of the kiln door lifting, sealing and heat-insulating device more compact, and because the accommodating space 360 ​​is arranged between the second slide rail 320 and the first slide rail 310, the first slide rail 310 limits the first pulley 110, which is beneficial to avoid the problem of collision of the lifting drive 400 when the kiln door 100 is close to the frame 210, and is beneficial to improving the reliability of the kiln door lifting, sealing and heat-insulating device.

[0058] Reference Figure 1 , Figure 2 and Figure 3 As shown, specifically, in order to improve the stability of driving the frame 210 to rise and fall, the kiln door lifting, sealing and insulation device includes two lifting drives 400, and the two lifting drives 400 are respectively arranged on the left and right sides of the accommodating space 360. The two lifting drives 400 can simultaneously apply driving force to the left and right ends of the frame 210, which is conducive to making the lifting of the frame 210 along the limit frame 300 more stable and reliable.

[0059] Reference Figure 1 , Figure 2 and Figure 3 As shown, the two lifting drives 400 are respectively disposed on the left and right sides of the accommodating space 360 ​​, which is beneficial to reduce the obstruction of the opening of the kiln body 600 by the lifting drives 400 , and can facilitate users to store and retrieve items from the internal chamber of the kiln body 600 .

[0060] Reference Figure 1 , Figure 2 and Figure 3As shown, it can be understood that, specifically, the lifting drive 400 is a cylinder, and the cylinder includes a fixed end and a movable end that can be relatively extended and retracted, wherein the fixed end of the cylinder is relatively fixed to the lower end of the limit frame 300, and the movable end of the cylinder is connected to the frame 210. Through the extension and retraction of the cylinder, thrust and pulling forces can be applied to the lifting and lowering of the frame 210, which is beneficial to reduce the dependence on the self-weight of the frame 210 and the kiln door 100. Under the extension and retraction drive of the cylinder, the stability of the pressing and separation of the kiln door 100 and the kiln body 600 can be improved, which is beneficial to improve the lifting and lowering of the kiln door 100, and the movement reliability of the pressing and separation of the kiln door 100 and the kiln body 600.

[0061] It should be understood that in some other embodiments, the lifting drive 400 may include a reduction motor, a transmission shaft and a chain. The output end of the reduction motor is connected to the transmission shaft to drive the transmission shaft to rotate forward or reverse. The transmission shaft is connected to the chain, and the chain is connected to the frame 210. Through the connection of the chain, the frame 210 can be driven to slide up and down along the second slide rail 320 to achieve the lifting and lowering of the kiln door 100, as well as the sealing and separation of the kiln door 100 relative to the kiln body 600.

[0062] Reference Figure 2 , Figure 4 and Figure 5 As shown, it can be understood that in this embodiment, a plurality of first rotating seats 510 are connected to the end face of the kiln door 100 close to the connecting frame 200, that is, the first rotating seat 510 is connected to the rear end face of the kiln door 100, and a plurality of second rotating seats 520 are connected to the frame body 210, and both ends of the connecting arm 220 are rotatably connected to the first rotating seat 510 and the second rotating seat 520 respectively, and the connecting arm 220 is at least partially located in the accommodating space 360, which is beneficial to improving the structural compactness of the kiln door lifting, sealing and heat preservation device.

[0063] Reference Figure 2 , Figure 4 and Figure 5 As shown, the two ends of the connecting arm 220 are rotatably connected to the first rotating seat 510 and the second rotating seat 520 respectively. By swinging the connecting arm 220 relative to the frame 210 and the kiln door 100, the parallelogram formed by the connecting arm 220, the frame 210 and the kiln door 100 can be deformed, so that the kiln door 100 is moved closer to or away from the frame 210, thereby realizing the separation or sealing of the kiln door 100 and the kiln body 600, which is conducive to making the lifting and lateral movement of the kiln door 100 more stable and reliable.

[0064] Reference Figure 2 , Figure 4 and Figure 5As shown, it can be understood that the first rotating seat 510 is detachably connected to the kiln door 100, and the first rotating seat 510 can realize the detachable connection of the kiln door 100 by bolt connection, so that the user can choose to use connecting arms 220 of different specifications according to the specifications or usage requirements of the kiln door 100, or add connecting arms 220 for use, which is conducive to improving the existing kiln door 100 structure, thereby improving the applicability of the kiln door lifting, sealing and insulation device to different kilns.

[0065] Reference Figure 2 , Figure 5 and Figure 6 As shown, the second rotating seat 520 is detachably connected to the frame 210, and the second rotating seat 520 can be detachably connected to the frame 210 by bolt connection. The second rotating seat 520 is detachably connected to the frame 210, so that the user can choose to use connecting arms 220 of different specifications according to the specifications or usage requirements of the kiln door 100, or add connecting arms 220 for use, which is conducive to improving the existing kiln door 100 structure, thereby improving the applicability of the kiln door lifting, sealing and insulation device to different kilns.

[0066] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that the limit frame 300 includes a diagonal brace 340, and an upper frame 330 and a lower frame 350 arranged in an upper and lower manner, and the upper end of the diagonal brace 340 is connected to the upper frame 330, and the lower end of the diagonal brace 340 is connected to the lower frame 350. The connection of the diagonal brace 340 is beneficial to improving the strength and rigidity of the limit frame 300, and is beneficial to improving the service life of the kiln door lifting, sealing and insulation device.

[0067] Reference Figure 1 , Figure 3 and Figure 4 As shown, it can be understood that a plurality of rolling seats are connected to the lower end of the kiln door 100, and each rolling seat is rotatably connected to two third pulleys 120 arranged in a front-to-back interval. The rolling connection between the third pulley 120 and a supporting plane such as the ground is helpful to assist in achieving the approach or distance of the kiln door 100 relative to the frame 210, that is, to achieve the separation or sealing of the kiln door 100 and the kiln body 600, which is helpful to improve the reliability of the movement of the kiln door 100.

[0068] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A kiln door lifting, sealing and heat preservation device, characterized in that: include: A kiln door (100) is rotatably connected to a plurality of first pulleys (110); A connecting frame (200) comprises a frame body (210) and a plurality of connecting arms (220), one end of the connecting arm (220) being rotatably connected to the frame body (210), the other end of the connecting arm (220) being rotatably connected to the kiln door (100), and the frame body (210) being rotatably connected to a plurality of second pulleys (211); The limiting frame (300) comprises a first slide rail (310) and a second slide rail (320) which are arranged at intervals in front and back, wherein the first slide rail (310) can be slidably connected to the first pulley (110), and the second slide rail (320) is slidably connected to the second pulley (211); A lifting drive (400) is drivingly connected to the frame (210) to drive the frame (210) to rise and fall along the second slide rail (320).

2. The kiln door lifting, sealing and heat preservation device according to claim 1, characterized in that: The second slide rail (320) comprises two slide grooves (321) with openings facing each other, and the two ends of the slide groove (321) extend up and down. The left and right sides of the frame (210) are both rotatably connected with the second pulley (211), and the second pulley (211) is arranged in the slide groove (321) and is slidably connected to the slide groove (321).

3. The kiln door lifting, sealing and heat preservation device according to claim 1, characterized in that: The limiting frame (300) comprises a containing space (360), the containing space (360) is arranged between the first slide rail (310) and the second slide rail (320), and the lifting drive (400) is arranged in the containing space (360).

4. The kiln door lifting, sealing and heat preservation device according to claim 3 is characterized by: The kiln door lifting, sealing and heat-insulating device comprises two lifting drives (400), and the two lifting drives (400) are respectively arranged on the left and right sides of the accommodating space (360).

5. The kiln door lifting, sealing and heat preservation device according to claim 1 is characterized in that: The lifting drive (400) is an oil cylinder, and the movable end of the oil cylinder is connected to the frame (210).

6. The kiln door lifting, sealing and heat preservation device according to claim 1, characterized in that: The left and right sides of the frame body (210) are both rotatably connected to a plurality of connecting arms (220); located on the left or right side of the frame body (210), the plurality of connecting arms (220) are arranged in an upper and lower interval pattern.

7. The kiln door lifting, sealing and heat preservation device according to claim 1, characterized in that: The kiln door (100) is connected to a plurality of first rotating seats (510) at the end surface close to the connecting frame (200), the frame body (210) is connected to a plurality of second rotating seats (520), and the two ends of the connecting arm (220) are rotatably connected to the first rotating seats (510) and the second rotating seats (520) respectively.

8. The kiln door lifting, sealing and heat preservation device according to claim 7, characterized in that: The first rotating seat (510) is detachably connected to the kiln door (100); and / or the second rotating seat (520) is detachably connected to the frame (210).

9. The kiln door lifting, sealing and heat preservation device according to claim 1, characterized in that: The limiting frame (300) comprises an oblique support (340), and an upper frame (330) and a lower frame (350) arranged in an upper and lower manner, wherein the upper end of the oblique support (340) is connected to the upper frame (330), and the lower end of the oblique support (340) is connected to the lower frame (350).

10. The kiln door lifting, sealing and heat preservation device according to claim 1, characterized in that: The lower end of the kiln door (100) is rotatably connected to a plurality of third pulleys (120).

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