Heating furnace sealing door with high sealing performance

Abstract

The utility model relates to a high-sealing-performance heating furnace sealing door, and belongs to the technical field of heating furnaces. The sealing door comprises a frame with a feeding port formed in the center; the fixed frames are axially fixed and symmetrically arranged on the two sides of the frame; the rotating shaft is movably mounted in the fixed frame; the furnace door is slidably connected with the fixed frame, and the rotating shaft movably penetrates through the furnace door and is in threaded fit connection with the furnace door; the sealing assembly is arranged at the top of the furnace door and used for enhancing the sealing performance of the furnace door and the feeding port. According to the high-sealing-performance heating furnace sealing door, the round rods move along the limiting grooves to drive the sealing strips to abut against the frame and to be disconnected from the frame, and when the sealing strips abut against the frame, the sealing performance of the furnace door in the closed state can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating furnace technical field especially relates to a high sealing property heating furnace sealing door. BACKGROUND

[0002] The heating furnace is a kind of equipment for heating material or workpiece to rolling forging temperature, is widely used in petroleum, chemical industry, metallurgy, machinery and other industries, can utilize high-temperature flame to pass through radiation and give heat to the furnace tube in radiation chamber, and then give heat to medium in furnace tube, to make it reach forging temperature.

[0003] Sealing property is crucial to the operation and efficiency of heating furnace, and heating furnace with good sealing performance can effectively reduce heat loss through gap, thereby maintaining high-temperature state in furnace and improving the utilization efficiency of heat energy, but the certain gap left after furnace door blocks material taking port in actual production will cause heat overflow phenomenon, even small gap can also cause significant heat loss, because hot air will escape through these gaps, and cold air can enter the furnace, which not only reduces the temperature in the furnace, but also increases energy consumption. SUMMARY

[0004] Therefore, it is necessary to provide a high sealing property heating furnace sealing door aiming at the above technical problems.

[0005] The utility model provides a kind of high sealing property heating furnace sealing door, comprising:

[0006] Frame, center is equipped with feed inlet;

[0007] Fixed frame, axial fixed symmetry is equipped in the both sides of the frame;

[0008] Rotating shaft, movably installed in the fixed frame;

[0009] Furnace door, slidingly connected with the fixed frame, the rotating shaft movably penetrates the furnace door and both are screw thread adaptation connection;

[0010] Sealing assembly, is equipped in the top of furnace door, for strengthening the sealing property of furnace door and feed inlet.

[0011] In one embodiment, the sealing assembly includes a fixed plate, the fixed plate is provided with a slot, and a sealing strip is slidably arranged in the slot, and the sealing strip can slide along the top of the furnace door.

[0012] In one of the embodiments, the fixed plate is symmetrically provided with a sliding groove on both sides, a round rod is slidably arranged in the sliding groove, one end of the round rod is fixedly connected with the sealing strip, vertical plates are symmetrically arranged on both sides of the fixed frame, the vertical plates are movably penetrated through both sides of the oven door, a limiting groove is formed in the vertical plate, and the end of the round rod away from the sealing strip is slidably connected with the limiting groove.

[0013] In one of the embodiments, the oven door is symmetrically provided with a positioning frame on both sides of the bottom, a movable rod is transversely penetrated in the positioning frame, one end of the movable rod is fixedly provided with a clamping plate, the clamping plate is movably penetrated through the positioning frame, clamping grooves are symmetrically formed in both sides of the frame, and the clamping plate is movably clamped with the clamping grooves.

[0014] In one of the embodiments, a return spring is connected between the clamping plate and the positioning frame, and the return spring is movably arranged outside the movable rod.

[0015] In one of the embodiments, a movable plate is movably arranged in the positioning frame, a movable groove is formed in the movable plate, a recess is formed in the bottom of the positioning frame, a limiting plate is fixedly arranged in the movable groove, an inclined groove is formed in the limiting plate, a vertical rod is fixedly arranged on the bottom of the clamping plate, the vertical rod is slidably abutted with the inclined groove and movably clamped with the end of the limiting plate away from the inclined groove, and the vertical rod is slidably connected with the recess and the movable groove.

[0016] In one of the embodiments, a horizontal groove is formed in the end of the movable plate away from the movable groove, a positioning plate is fixedly arranged on the positioning frame, the positioning plate is slidably connected with the horizontal groove, a supporting plate is fixedly arranged on the movable plate, and a positioning spring is connected between the positioning plate and the supporting plate.

[0017] In one of the embodiments, a positioning rod is fixedly arranged at one end of the movable plate, a fixed block is fixedly arranged on one side of the frame at the clamping groove, a notch is formed in the fixed block, and the positioning rod is movably abutted with the notch.

[0018] The above sealing door of the high-sealing heating furnace can drive the sealing strip to abut against and disengage from the frame by the movement of the round rod along the limiting groove, can ensure the sealing property of the oven door in the closed state when the sealing strip abuts against the frame, and can ensure that the sealing strip is not damaged by friction during the up-and-down movement of the oven door when the sealing strip disengages from the frame. The clamping of the clamping plate with the clamping groove can ensure the stability of the oven door in the open state. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0021] Figure 2 It is a schematic diagram of the structure of the feed inlet in the present application.

[0022] Figure 3 It is Figure 2 It is an enlarged schematic diagram of part A in the present application.

[0023] Figure 4 It is a schematic diagram of the structure of the sealing assembly in the present application.

[0024] Figure 5 It is a schematic diagram of the structure of the positioning frame in the present application.

[0025] Figure 6 It is a schematic diagram of the structure of the notch in the present application.

[0026] Reference signs:

[0027] 1, frame; 101, feed inlet; 102, clamping groove; 2, fixed frame; 3, rotating shaft; 4, furnace door; 5, sealing assembly; 51, fixed plate; 511, notch; 512, sliding groove; 52, sealing strip; 6, round rod; 7, vertical plate; 71, limiting groove; 8, positioning frame; 81, groove; 9, movable rod; 10, clamping plate; 11, return spring; 12, movable plate; 121, movable groove; 122, transverse groove; 13, limiting plate; 131, inclined groove; 14, vertical rod; 15, positioning plate; 16, supporting plate; 17, positioning spring; 18, positioning rod; 19, fixed block; 191, notch. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] It should be noted that when a component is referred to as being "on" or "disposed on" another component, it can be directly on the other component or intervening components can also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components can also be present. The terms "vertical", "horizontal", "up", "down", "left", "right", and similar terms as used in the present specification are merely used for the purpose of illustration and do not indicate the only orientation of the present application.

[0030] In addition, the terms "first", "second", and the like, are used merely as labels for convenience and do not imply or constitute a description of relative importance or an indication of the number of features being described. Thus, a feature defined with "first", "second", etc. can include at least one of the features, explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly and specifically limited.

[0031] In the present application, unless otherwise explicitly specified and limited, the "on", "under", "above", and "over" of a first feature to a second feature can be that the first feature is in direct contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the "on", "above", and "over" of the first feature to the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "under", "below", and "under" of the first feature to the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0032] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the present application includes any and all combinations of one or more related listed items.

[0033] The present application will be described below in conjunction with Figures 1-6 The present application relates to a high-sealing heating furnace sealing door.

[0034] As Figure 1 , Figure 2 and Figure 5As shown in the figure, in one embodiment, a high sealing heating furnace sealing door, comprising: a frame 1, a feeding port 101 is opened in the center; a fixed frame 2, which is axially fixed and symmetrically arranged on both sides of the frame 1; a rotating shaft 3, which is movably installed in the fixed frame 2; a furnace door 4, which is slidably connected with the fixed frame 2, the rotating shaft 3 movably penetrates the furnace door 4 and both are threadedly connected; a sealing assembly 5, which is arranged at the top of the furnace door 4, is used to enhance the sealing performance of the furnace door 4 and the feeding port 101.

[0035] Specifically, open the feeding port 101 opened in the frame 1, put the material to be heated into the frame 1, rotate the rotating shaft 3, the rotation of the rotating shaft 3 will drive the furnace door 4 to slide up and down along the fixed frame 2, so as to open and close the feeding port 101, after the furnace door 4 blocks the feeding port 101, use the sealing assembly 5 to seal the connection between the furnace door 4 and the feeding port 101, reduce the heat overflow through the gap, ensure the stability of the temperature in the frame 1, the sealing assembly 5 can be arranged at four positions of the furnace door 4, which can seal the four positions where the furnace door 4 contacts with the feeding port 101.

[0036] Referring to Figure 4 As shown in the figure, in this embodiment, the sealing assembly 5 comprises a fixed plate 51, a notch 511 is opened in the fixed plate 51, a sealing strip 52 is slidably arranged in the notch 511, and the sealing strip 52 can slide along the top of the furnace door 4.

[0037] Specifically, when the feeding port 101 is in an open state, materials can be added inwardly, after the materials are added, the furnace door 4 moves downward to block the feeding port 101, the sealing strip 52 does not contact with the frame 1 during the descending process, so as to avoid that the sealing strip 52 is damaged due to friction with the outer wall of the frame 1 during the descending process, when the furnace door 4 is about to block the feeding port 101, move the sealing strip 52 outwardly along the notch 511 opened in the fixed plate 51, so that the sealing strip 52 contacts with the frame 1, so as to ensure the sealing performance.

[0038] Referring to Figure 3 and Figure 4 As shown in the figure, in this embodiment, the fixed plate 51 is axially symmetrically provided with a sliding groove 512 on both sides, a round rod 6 is slidably arranged in the sliding groove 512, one end of the round rod 6 is fixedly connected with the sealing strip 52, vertical plates 7 are axially symmetrically arranged on both sides of the fixed frame 2, the vertical plates 7 movably penetrate both sides of the furnace door 4, limit grooves 71 are opened in the vertical plates 7, and one end of the round rod 6 away from the sealing strip 52 is slidably connected with the limit groove 71.

[0039] Specifically, when the fixed plate 51 moves downward along with the oven door 4, the round rod 6 first moves along the straight groove section of the limiting groove 71 of the vertical plate 7, at this time, the round rod 6 does not move, the sealing strip 52 does not contact the frame 1, and the sealing strip 52 is prevented from being damaged by friction, when the oven door 4 is about to block the feeding port 101, the round rod 6 also slides from the straight groove section of the limiting groove 71 to the inclined groove section, at this time, the round rod 6 moves transversely along the sliding groove 512, thereby driving the sealing strip 52 to move outward of the slot 511, and abutting against the frame 1.

[0040] Referring to Figure 2 and Figures 5-6 In the embodiment, the bottom of the oven door 4 is fixedly provided with a positioning frame 8 which is axially symmetrical, an active rod 9 is transversely and movably arranged in the positioning frame 8, a clamping plate 10 is fixedly arranged at one end of the active rod 9, the clamping plate 10 movably penetrates the positioning frame 8, and a clamping groove 102 is axially and symmetrically arranged at both sides of the frame 1, the clamping plate 10 is movably clamped with the clamping groove 102.

[0041] Specifically, when the heating is completed, the oven door 4 is moved upward, at this time, the clamping plate 10 slides along the surface of the frame 1, when the clamping plate 10 is aligned with the clamping groove 102, the active rod 9 is pushed in the direction of approaching the frame 1 along the positioning frame 8, the movement of the active rod 9 drives the clamping plate 10 to move in the direction of approaching the clamping groove 102 until the clamping plate 10 is clamped with the clamping groove 102, so that the stability of the oven door 4 in the open state can be ensured.

[0042] Referring to Figure 5 In the embodiment, a reset spring 11 is connected between the clamping plate 10 and the positioning frame 8, and the reset spring 11 is movably arranged outside the active rod 9.

[0043] Specifically, the reset spring 11 is deformed in the process that the active rod 9 drives the clamping plate 10 to be clamped with the clamping groove 102, and the reset spring 11 is used to ensure the stability of the active rod 9 and the clamping plate 10 in the movement process.

[0044] Referring to Figures 5-6 In the embodiment, an active plate 12 is movably arranged in the positioning frame 8, an active groove 121 is arranged on the active plate 12, a recess 81 is arranged at the bottom of the positioning frame 8, a limiting plate 13 is fixedly arranged in the active groove 121, an inclined groove 131 is arranged on the limiting plate 13, a vertical rod 14 is fixedly arranged at the bottom of the clamping plate 10, the vertical rod 14 slidably abuts with the inclined groove 131 and movably clamps with the limiting plate 13 at the end where the inclined groove 131 is not arranged, and the vertical rod 14 is slidably connected with the recess 81 and the active groove 121.

[0045] Specifically, when the heating is completed and the furnace door 4 is moved upward, the vertical rod 14 is clamped with one end of the limiting plate 13 without the inclined slot 131, at this time, the movable rod 9 and the clamping plate 10 cannot be moved, the clamping plate 10 slides along the surface of the frame 1, and the reset spring 11 is in a compressed state, when the clamping plate 10 is aligned with the clamping groove 102, the movable plate 12 is moved horizontally, the movement of the movable plate 12 drives the limiting plate 13 to move, the vertical rod 14 slides relative to the movable slot 121, the limiting plate 13 is removed from the limiting of the vertical rod 14, and under the action of the reset spring 11, the movable rod 9 is moved along the groove 81, thereby driving the clamping plate 10 to be clamped with the clamping groove 102, so as to ensure the stability of the furnace door 4.

[0046] Referring to Figures 5-6 As shown in the embodiment, a horizontal slot 122 is formed at one end of the movable plate 12 away from the movable slot 121, a positioning plate 15 is fixedly arranged on the positioning frame 8, the positioning plate 15 is slidably connected with the horizontal slot 122, a supporting plate 16 is fixedly arranged on the movable plate 12, and a positioning spring 17 is connected between the supporting plate 16 and the positioning plate 15.

[0047] Specifically, the horizontal movement of the movable plate 12 drives the supporting plate 16 to move, thereby stretching the positioning spring 17, and the positioning plate 15 moves relative to the horizontal slot 122, when the limiting plate 13 is not abutted with the movable rod 9, the movable rod 9 drives the clamping plate 10 to be clamped with the clamping groove 102, and under the action of the positioning spring 17, the movable plate 12 is pulled back to the initial position, when the furnace door 4 is to be closed, the movable rod 9 is pulled away from the frame 1 to make the clamping plate 10 be disengaged from the clamping groove 102, and the movable rod 9 moves along the inclined slot 131 of the limiting plate 13, thereby driving the movable plate 12 to move horizontally, when the movable rod 9 moves to the other end of the limiting plate 13, the positioning spring 17 again pulls the movable plate 12 back to the initial position, and at this time, the movable rod 9 is again clamped with one end of the limiting plate 13 without the inclined slot 131.

[0048] Referring to Figure 3 and Figure 5 As shown in the embodiment, a positioning rod 18 is fixedly arranged at one end of the movable plate 12, a fixed block 19 is fixedly arranged on one side of the frame 1, a notch 191 is formed in the fixed block 19, and the positioning rod 18 is movably abutted with the notch 191.

[0049] Specifically, when the furnace door 4 moves upward, the positioning rod 18 moves upward, and when the positioning rod 18 abuts against the gap 191 of the fixed block 19, the positioning rod 18 continuously moves upward, and the abutting of the positioning rod 18 against the gap 191 drives the movable plate 12 to move laterally, so that the limiting plate 13 no longer abuts against the movable rod 9. At this time, under the action of the reset spring 11, the movable rod 9 and the clamping plate 10 move, so that the clamping plate 10 is clamped with the clamping groove 102. When it is needed to close the furnace door 4, the clamping plate 10 is pulled away from the clamping groove 102, and the furnace door 4 moves downward. When the positioning rod 18 no longer abuts against the gap 191, under the action of the positioning spring 17, the movable plate 12 returns to the initial position, and the movable rod 9 abuts against one end of the inclined groove 131 of the limiting plate 13 again, so that the clamping plate 10 cannot move.

[0050] In implementation, the feeding port 101 of the frame 1 is opened, the material to be heated is placed in the frame 1, and the rotating shaft 3 is rotated. The rotation of the rotating shaft 3 drives the furnace door 4 and the fixed plate 51 to move downward. When the fixed plate 51 moves downward with the furnace door 4, the round rod 6 first moves along the straight groove section of the limiting groove 71 of the vertical plate 7. At this time, the round rod 6 does not move, and the sealing strip 52 does not contact the frame 1, so as to avoid damage of the sealing strip 52 caused by friction. When the furnace door 4 is about to block the feeding port 101, the round rod 6 also slides from the straight groove section to the inclined groove section of the limiting groove 71. At this time, the round rod 6 moves laterally along the sliding groove 512, so as to drive the sealing strip 52 to move outward from the slot 511, and abut against the frame 1, so as to ensure the sealing property. After heating is completed, the furnace door 4 moves upward, and drives the positioning rod 18 to move upward. When the positioning rod 18 abuts against the gap 191 of the fixed block 19, the positioning rod 18 continuously moves upward. The abutting of the positioning rod 18 against the gap 191 drives the movable plate 12 to move laterally, so that the limiting plate 13 no longer abuts against the movable rod 9. At this time, under the action of the reset spring 11, the movable rod 9 and the clamping plate 10 move, so that the clamping plate 10 is clamped with the clamping groove 102. When it is needed to close the furnace door 4, the clamping plate 10 is pulled away from the clamping groove 102, and the furnace door 4 moves downward. When the positioning rod 18 no longer abuts against the gap 191, under the action of the positioning spring 17, the movable plate 12 returns to the initial position, and the movable rod 9 abuts against one end of the inclined groove 131 of the limiting plate 13 again, so that the clamping plate 10 cannot move.

[0051] The technical features of the above-described embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above-described embodiments are described, but it should be considered that any combination of the technical features is within the scope of the present disclosure as long as the combination does not result in contradiction.

[0052] The above-described embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but cannot be understood as the limitation of the scope of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A high-sealability furnace seal door characterized by, The utility model relates to a kind of rotary furnace, including: Frame, center is provided with feed inlet; Fixed frame, axial symmetry is provided in the frame both sides; Rotary shaft, movably installed in the fixed frame; Oven door, slidingly connected with the fixed frame, the rotary shaft movably penetrates the oven door and both are screw thread adaptation connection; Sealing assembly, provided at the top of the oven door, for enhancing the sealing property of the oven door and the feed inlet.

2. The high containment furnace seal door of claim 1, wherein, The sealing assembly includes a fixed plate, a slot is formed in the fixed plate, a sealing strip is slidingly arranged in the slot, and the sealing strip can slide along the top of the oven door.

3. The high containment furnace seal door of claim 2, wherein, The fixed plate is axially symmetrically provided with a sliding groove on both sides, a round rod is slidingly arranged in the sliding groove, one end of the round rod is fixedly connected with the sealing strip, vertical plates are axially symmetrically arranged on both sides of the fixed frame, the vertical plates movably penetrate both sides of the oven door, a limiting groove is formed in the vertical plate, and one end of the round rod away from the sealing strip is slidingly connected with the limiting groove.

4. The high containment furnace seal door of claim 1, wherein, Positioning frames are fixedly arranged on both sides of the bottom of the oven door, movable rods are transversely arranged in the positioning frames, clamping plates are fixedly arranged at one end of the movable rods, the clamping plates movably penetrate the positioning frames, clamping grooves are axially symmetrically formed in the frame, and the clamping plates are movably clamped with the clamping grooves.

5. The high containment furnace seal door of claim 4, wherein, A return spring is connected between the clamping plate and the positioning frame, and the return spring is movably arranged outside the movable rod.

6. The high containment furnace seal door of claim 4, wherein, An activity plate is movably arranged in the positioning frame, an activity groove is formed in the activity plate, a recess is formed in the bottom of the positioning frame, a limiting plate is fixedly arranged in the activity groove, an inclined groove is formed in the limiting plate, a vertical rod is fixedly arranged at the bottom of the clamping plate, the vertical rod slidingly abuts with the inclined groove and movably clamps with one end of the limiting plate not provided with the inclined groove, and the vertical rod is slidingly connected with the recess and the activity groove.

7. The high containment furnace seal door of claim 6, wherein, A transverse groove is formed in one end of the activity plate away from the activity groove, a positioning plate is fixedly arranged on the positioning frame, the positioning plate is slidingly connected with the transverse groove, a supporting plate is fixedly arranged on the activity plate, and a positioning spring is connected between the positioning plate and the supporting plate.

8. The high containment furnace seal door of claim 7, wherein, A positioning rod is fixedly arranged at one end of the activity plate, a fixed block is fixedly arranged on one side of the frame in the clamping groove, a notch is formed in the fixed block, and the positioning rod movably abuts with the notch.

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