Sealing structure of box-type furnace

Abstract

The utility model relates to the field of box-type furnace sealing, in particular to a sealing structure of a box-type furnace, which adopts the technical scheme that the sealing structure comprises the box-type furnace and a furnace door, the furnace door is movably hinged to the front surface of the box-type furnace, a through groove is formed in one side of the furnace door, a sealing baffle is movably mounted in the through groove, a sealing strip is clamped on the outer wall of the sealing baffle, and the sealing strip is connected with the through groove. The box-type furnace has the advantages that when the furnace door is closed, one side of the furnace door is clamped into the inner side of the sealing groove through the sealing piece, a gap is prevented from being reserved between the furnace door and the box-type furnace, meanwhile, the sealing packing strip arranged on the inner side of the sealing groove is in close contact with the clamped sealing piece, the sealing effect is enhanced, the sealing effect is improved, and the service life of the box-type furnace is prolonged. And meanwhile, the sealing baffle is inserted into the inner side of the discharging port to seal the discharging port, the sealing strip outside the sealing baffle is clamped into the inner side of the groove, and a gap is prevented from being reserved between the sealing baffle and the inner wall of the discharging port, so that the box-type furnace and the discharging port can be subjected to multiple sealing by the furnace door, and the sealing effect is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of box-type furnace sealing, in particular to a sealing structure of a box-type furnace. Background Art

[0002] The box-type furnace, also known as the muffle furnace, is simple to operate, easy to maintain, and is equipped with a controllable chimney behind the furnace.

[0003] The existing box-type furnace includes a furnace body and a furnace door, and the furnace door and the furnace body are mostly hinged. When the furnace door is closed, a rectangular sealing strip is usually arranged on the surface of the furnace door for sealing between the furnace door and the furnace body. However, in the process of continuous opening and closing of the furnace door, the sealing strip is easily worn. At this time, the worn sealing strip needs to be replaced, and most of the sealing strips are fixed by gluing, which is very inconvenient to operate. At the same time, if they are not replaced in time, the cavity is likely to leak from the worn part of the sealing strip, resulting in overall sealing error.

[0004] Therefore, it is necessary to invent a sealing structure of a box-type furnace. Utility Model Content

[0005] The purpose of the utility model is to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing structure of a box-type furnace, comprising a box-type furnace and a furnace door, wherein the furnace door is movably hinged on the front side of the box-type furnace, a through groove is opened on one side of the furnace door, a sealing baffle is movably installed inside the through groove, a sealing strip is clamped on the outer wall of the sealing baffle, and a pull plate is installed on the side of the furnace door away from the through groove.

[0007] Based on the above characteristics: when the furnace door is closed, the pull plate can be pulled to drive the sealing baffle to retract to the inside of the through groove. When the furnace door is closed, the pull plate is released. At this time, the sealing baffle will rebound outward, so that the sealing baffle is inserted into the inside of the box furnace, and the sealing strip is used to strengthen the seal.

[0008] Preferably, a discharge port is provided in the middle of the upper end of the box-type furnace, a sealing groove is provided on the surface of the box-type furnace, the sealing groove is located outside the discharge port, and a sealing packing strip is installed in the inner cavity of the sealing groove.

[0009] Based on the above characteristics: the material is put into the box-type furnace through the discharge port, and when the furnace door is closed, the sealing baffle will be inserted into the inner side of the discharge port to seal it.

[0010] Preferably, a groove is provided on the inner wall of the discharge port on one side close to the furnace door.

[0011] Based on the above features: the sealing strip is made of rubber material, and when the sealing baffle is inserted into the inner side of the discharge port, the sealing strip outside the sealing baffle will be stuck into the inner side of the groove to avoid a gap between the sealing baffle and the inner wall of the discharge port.

[0012] Preferably, a sealing sheet is installed on the surface of the furnace door on one side close to the through groove, a movable groove is opened on the surface of the furnace door on one side away from the through groove, both ends of the pull plate movably pass through the movable groove, and a movable cavity is opened in the inner cavity of the furnace door.

[0013] Based on the above features: the pull plate passes through the furnace door through the movable groove, which facilitates the fixed connection between the two ends of the pull plate and the sealing baffle. When the furnace door is closed, one side of the furnace door will use the sealing sheet to be stuck into the inner side of the sealing groove to avoid a gap between the furnace door and the box-type furnace. At the same time, the sealing plate root strip arranged on the inner side of the sealing groove will be in close contact with the inserted sealing sheet to enhance the sealing effect.

[0014] Preferably, positioning rods are installed at both ends of the movable cavity, a buffer spring is installed in the middle of the movable cavity, and one end of the buffer spring is fixedly connected to the sealing baffle.

[0015] Based on the above features: when the pull plate drives the sealing baffle to retract to the inside of the movable cavity, the buffer spring will be squeezed and deformed, and when the pull plate is released, the buffer spring will rebound the sealing baffle, so that the sealing baffle can extend outward through the through groove.

[0016] Preferably, a card slot is provided on the surface of the sealing baffle, convex plates are symmetrically installed at both ends of the sealing baffle, and positioning holes are provided at intervals on the surface of the convex plates.

[0017] Based on the above features: the sealing strip is clamped in the groove on the surface of the sealing baffle. When the sealing strip is worn, the sealing strip can be quickly removed and replaced. At the same time, the two ends of the sealing baffle are limited by convex plates so that the sealing baffle will not separate from the through groove when it is rebounded by the buffer spring. Since the positioning rod passes through the positioning hole, the sealing baffle will maintain parallel movement when it is telescopically moved.

[0018] Preferably, the discharge port and the sealing baffle are both arranged in a rectangular structure.

[0019] Based on the above features: it is convenient to insert the sealing baffle into the inner side of the discharge port to seal the discharge port.

[0020] The beneficial effects of the utility model are:

[0021] 1. The furnace door can block and seal the box-type furnace. When the furnace door is closed, one side of the furnace door will use a sealing sheet to fit into the inner side of the sealing groove to avoid a gap between the furnace door and the box-type furnace. At the same time, the sealing packing strips arranged on the inner side of the sealing groove will be in close contact with the inserted sealing sheet to enhance the sealing effect. At the same time, the sealing baffle will also be inserted into the inner side of the discharge port for sealing, and the sealing strip outside the sealing baffle will be inserted into the inner side of the groove to avoid a gap between the sealing baffle and the inner wall of the discharge port, so that the furnace door can perform multiple sealing on the box-type furnace and the discharge port to enhance the sealing effect.

[0022] 2. The sealing strip is clamped in the groove on the surface of the sealing baffle. When the sealing strip is worn, the sealing strip can be quickly removed and replaced. When the furnace door is closed, the pull plate can be pulled to drive the sealing baffle to retract to the inside of the movable cavity. At this time, the buffer spring will be squeezed and deformed to prevent the sealing baffle from being exposed and colliding with the discharge port when the furnace door is closed. When the pull plate is released, the buffer spring will rebound the sealing baffle so that the sealing baffle can extend outward through the through groove and insert into the inside of the discharge port. At the same time, the two ends of the sealing baffle are limited by convex plates, so that the sealing baffle will not fall off when it is rebounded by the buffer spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A diagram showing a closed state of a furnace door of a sealing structure of a box-type furnace provided by the utility model;

[0024] Figure 2 A diagram showing a sealed furnace door of a box-type furnace provided by the utility model in an open state;

[0025] Figure 3 A schematic diagram of a sealing baffle and a sealing strip structure of a box-type furnace provided by the utility model;

[0026] Figure 4 The utility model provides a side sectional view of the interior of a sealing structure furnace door of a box-type furnace.

[0027] In the figure: 1, box-type furnace; 11, discharge port; 111, groove; 12, sealing groove; 13, sealing packing strip; 2, furnace door; 21, sealing sheet; 22, movable groove; 23, movable cavity; 231, positioning rod; 232, buffer spring; 3, through groove; 4, sealing baffle; 41, slot; 42, convex plate; 43, positioning hole; 5, sealing strip; 6, pull plate. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] See attached Figure 1-4The utility model provides a sealing structure of a box-type furnace, comprising a box-type furnace 1 and a furnace door 2, wherein the furnace door 2 is movably hinged on the front side of the box-type furnace 1, a through groove 3 is provided on one side of the furnace door 2, a sealing baffle 4 is movably installed inside the through groove 3, a sealing strip 5 is clamped on the outer wall of the sealing baffle 4, and a pull plate 6 is installed on the side of the furnace door 2 away from the through groove 3.

[0030] When the furnace door 2 is closed, the pull plate 6 can be pulled to make the pull plate 6 drive the sealing baffle 4 to retract to the inside of the through groove 3. When the furnace door 2 is closed, the pull plate 6 is released. At this time, the sealing baffle 4 will rebound outward, so that the sealing baffle 4 is inserted into the inside of the box furnace 1, and the sealing strip 5 is used to strengthen the seal.

[0031] Preferably, a discharge port 11 is provided in the middle of the upper end of the box-type furnace 1 , a sealing groove 12 is provided on the surface of the box-type furnace 1 , the sealing groove 12 is located outside the discharge port 11 , and a sealing packing strip 13 is installed in the inner cavity of the sealing groove 12 .

[0032] The material is put into the box-type furnace 1 through the discharge port 11. When the furnace door 2 is closed, the sealing baffle 4 is inserted into the inner side of the discharge port 11 to seal it.

[0033] Preferably, a groove 111 is formed on the inner wall of the discharge port 11 on one side close to the furnace door 2 .

[0034] The sealing strip 5 is made of rubber material. When the sealing baffle 4 is inserted into the inner side of the discharge port 11 , the sealing strip 5 outside the sealing baffle 4 will be stuck into the inner side of the groove 111 to avoid a gap between the sealing baffle 4 and the inner wall of the discharge port 11 .

[0035] Preferably, a sealing sheet 21 is installed on the surface of the furnace door 2 on the side close to the through groove 3, a movable groove 22 is opened on the surface of the furnace door 2 on the side away from the through groove 3, both ends of the pull plate 6 movably pass through the movable groove 22, and a movable cavity 23 is opened in the inner cavity of the furnace door 2.

[0036] The pull plate 6 is movable through the furnace door 2 through the movable groove 22, so that both ends of the pull plate 6 are fixedly connected with the sealing baffle 4. When the furnace door 2 is closed, one side of the furnace door 2 will use the sealing sheet 21 to be inserted into the inner side of the sealing groove 12 to avoid a gap between the furnace door 2 and the box-type furnace 1. At the same time, the sealing packing strip 13 arranged on the inner side of the sealing groove 12 will be in close contact with the inserted sealing sheet 21 to enhance the sealing effect.

[0037] Preferably, positioning rods 231 are installed at both ends of the movable cavity 23 , and a buffer spring 232 is installed in the middle of the movable cavity 23 . One end of the buffer spring 232 is fixedly connected to the sealing baffle 4 .

[0038] An active cavity 23 is provided inside the furnace door 2, which can not only reduce the overall weight but also facilitate the storage of the retracted sealing baffle 4. When the pull plate 6 drives the sealing baffle 4 to retract to the inside of the active cavity 23, the buffer spring 232 will be squeezed and deformed. When the pull plate 6 is released, the buffer spring 232 will rebound the sealing baffle 4 so that the sealing baffle 4 can extend outward through the through groove 3.

[0039] Preferably, a slot 41 is provided on the surface of the sealing baffle 4 , convex plates 42 are symmetrically installed at both ends of the sealing baffle 4 , and positioning holes 43 are provided at intervals on the surface of the convex plates 42 .

[0040] The sealing strip 5 is clamped in the clamping groove 41 on the surface of the sealing baffle 4. When the sealing strip 5 is worn, the sealing strip 5 can be quickly removed and replaced. At the same time, the two ends of the sealing baffle 4 are limited by the convex plates 42, so that when the sealing baffle 4 is rebounded by the buffer spring 232, it will not separate from the through groove 3. Since the positioning rod 231 passes through the positioning hole 43, the sealing baffle 4 will also maintain parallel movement when it is telescopically moved.

[0041] Preferably, the discharge port 11 and the sealing baffle 4 are both arranged in a rectangular structure.

[0042] The sealing baffle 4 is conveniently inserted into the inner side of the discharge port 11 to seal the discharge port 11 .

[0043] The use process of the utility model is as follows: when the furnace door 2 is closed, the pull plate 6 can be pulled to retract the sealing baffle 4 to the inner side of the movable cavity 23. At this time, the buffer spring 232 will be squeezed and deformed, and then the furnace door 2 is closed. One side of the furnace door 2 will use the sealing sheet 21 to be inserted into the inner side of the sealing groove 12. At the same time, the sealing packing strip 13 arranged on the inner side of the sealing groove 12 will be in close contact with the inserted sealing sheet 21. Then, the pull plate 6 is released, and the buffer spring 232 will rebound the sealing baffle 4, so that the sealing baffle 4 can extend outward through the through groove 3 and be inserted into the inner side of the discharge port 11, and the sealing strip 5 outside the sealing baffle 4 will be inserted into the inner side of the groove 111, so that the furnace door 2 can perform multiple sealing on the box-type furnace 1 and the discharge port 11.

[0044] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. A sealing structure for a box-type furnace, comprising a box-type furnace (1) and a furnace door (2), wherein the furnace door (2) is movably hinged on the front side of the box-type furnace (1), and characterized in that: A through slot (3) is provided on one side of the furnace door (2), a sealing baffle (4) is movably installed inside the through slot (3), a sealing strip (5) is clamped on the outer wall of the sealing baffle (4), and a pull plate (6) is installed on the side of the furnace door (2) away from the through slot (3).

2. The sealing structure of a box-type furnace according to claim 1, characterized in that: A discharge port (11) is provided in the middle of the upper end of the box-type furnace (1), a sealing groove (12) is provided on the surface of the box-type furnace (1), the sealing groove (12) is located outside the discharge port (11), and a sealing packing strip (13) is installed in the inner cavity of the sealing groove (12).

3. The sealing structure of a box-type furnace according to claim 2, characterized in that: A groove (111) is provided on the inner wall of one side of the discharge port (11) close to the furnace door (2).

4. The sealing structure of a box-type furnace according to claim 1, characterized in that: A sealing sheet (21) is installed on the surface of the furnace door (2) on one side close to the through groove (3), a movable groove (22) is provided on the surface of the furnace door (2) on one side away from the through groove (3), both ends of the pull plate (6) movably penetrate the movable groove (22), and a movable cavity (23) is provided in the inner cavity of the furnace door (2).

5. The sealing structure of a box-type furnace according to claim 4, characterized in that: Positioning rods (231) are installed at both ends of the movable cavity (23), a buffer spring (232) is installed in the middle of the movable cavity (23), and one end of the buffer spring (232) is fixedly connected to the sealing baffle (4).

6. The sealing structure of a box-type furnace according to claim 1, characterized in that: A clamping groove (41) is provided on the surface of the sealing baffle (4), convex plates (42) are symmetrically mounted at both ends of the sealing baffle (4), and positioning holes (43) are provided at intervals on the surface of the convex plates (42).

7. The sealing structure of a box-type furnace according to claim 2, characterized in that: The discharge port (11) and the sealing baffle (4) are both arranged in a rectangular structure.

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