Furnace door closing structure of electric heating furnace

Abstract

The utility model relates to the technical field of electric heating furnaces, in particular to a furnace door closing structure of an electric heating furnace. A hinge is installed on the side face of the furnace door, a furnace body is installed on the side face of the hinge, a door opening assisting assembly is installed on the furnace door, a fastening block is fixedly connected to the other side of the furnace door, a second rotating shaft is installed on the front portion of the furnace body, a threaded rod is rotationally connected to the second rotating shaft, and an inner threaded sleeve is in threaded connection to the side face of the threaded rod. According to the furnace door closing structure of the electric heating furnace, when the positioning rod moves, the positioning rod can slide out of the positioning groove, at the moment, the rotating disc can be operated to open the furnace door, the furnace door closing structure has the temperature monitoring function conveniently, and workers are prevented from being hurt due to the fact that the furnace door is opened by accident; the furnace door can be opened through the hinge when being pushed, and an auxiliary opening structure can be conveniently arranged when the furnace door is opened.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heating furnaces, in particular to a furnace door closing structure of an electric heating furnace. Background Art

[0002] An electric heating furnace is a device that converts electrical energy into thermal energy and heats materials through electric heating elements. According to the characteristics of the heated materials and process requirements, electric heating furnaces can be divided into many types, such as resistance furnaces, induction furnaces, electric oil furnaces, etc. Electric heating furnaces are usually composed of furnace bodies, furnace doors, and closing structures. The closing structure is mainly used to close and open the furnace door and furnace body.

[0003] The existing furnace door closing structure is usually composed of parts such as hinges, fastening blocks, rotating shafts, threaded rods, internally threaded sleeves and rotating disks. When the furnace door closing structure is in use, the internally threaded sleeve can be driven to rotate by rotating the rotating disk, and the internally threaded sleeve can slide through the threaded rod when rotating, and the rotating disk and the fastening block can be driven to separate when the threaded sleeve slides. When the rotating disk is separated from the fastening block, the internally threaded sleeve and the threaded rod can be driven to rotate by pulling the rotating disk, and the threaded rod can rotate through the rotating shaft when rotating. When the internally threaded sleeve rotates out of the fastening block, the furnace door can be pulled, and the furnace When the door is pulled, it can be rotated open through the hinge and the furnace body. The traditional furnace door closing structure is usually used to open and close the furnace door. Then the furnace body will generate high temperature inside when it is working, and there will be high temperature residue inside the furnace body after heating the workpiece. If the furnace door is opened rashly, it will cause serious burns to the staff. However, the staff can usually only rely on their own work experience to judge whether the internal temperature of the furnace body reaches the requirement for the furnace door to be opened, which is very troublesome and easy to cause safety hazards. The furnace door closing structure does not have a monitoring function when it is working. Therefore, a furnace door closing structure for an electric heating furnace is needed. Utility Model Content

[0004] The utility model aims to provide a furnace door closing structure for an electric heating furnace, so as to solve the problems raised in the above background technology that the existing furnace door closing structures on the market have many defects, lack monitoring functions, and lack auxiliary opening structures.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a furnace door closing structure of an electric heating furnace, comprising: a furnace door;

[0006] A hinge is installed on the side of the furnace door, and a furnace body is installed on the side of the hinge. A door opening assist assembly is installed on the furnace door, and a fastening block is fixedly connected to the other side of the furnace door. A second rotating shaft is installed on the front of the furnace body, and a threaded rod is rotatably connected to the second rotating shaft. An internally threaded sleeve is threadedly connected to the side of the threaded rod, and a rotating disk is fixedly connected to the top of the internally threaded sleeve, and an anti-scalding locking assembly is installed between the furnace door and the internally threaded sleeve.

[0007] As a preferred solution of the utility model, the door opening assist assembly comprises: a first rotating shaft, the first rotating shaft is fixedly connected to the front part of the furnace door, and a handle is rotatably connected to the first rotating shaft;

[0008] A first moving groove is formed through the surface of the furnace door.

[0009] As a preferred solution of the utility model, an extrusion groove is provided inside the first movable groove, and an extrusion rod is movably connected inside the first movable groove;

[0010] An extrusion block is fixedly connected to the side of the extrusion rod close to the extrusion groove.

[0011] As a preferred solution of the utility model, a spring is fixedly connected between the extrusion block and the extrusion groove, and a push block is fixedly connected to one end of the extrusion rod close to the furnace body.

[0012] As a preferred solution of the utility model, the anti-scalding locking assembly comprises: a mounting groove, the mounting groove is provided inside the oven door, and a motor is installed inside the mounting groove;

[0013] The motor is connected to the furnace body through electric wires, and a gear is fixedly connected to the output end of the motor.

[0014] As a preferred solution of the utility model, a guide block is fixedly connected to the upper part of the installation groove, and a second movable groove is provided between the furnace door and the fastening block;

[0015] A positioning rod is movably connected between the guide block and the second movable groove.

[0016] As a preferred solution of the utility model, a tooth block is fixedly connected to the positioning rod, and a gear is meshedly connected to the side surface of the tooth block;

[0017] A trigger switch is installed in the middle of the installation slot close to the positioning rod.

[0018] As a preferred solution of the utility model, a positioning groove is provided on the surface of the internal threaded sleeve, and a warning light is installed on the surface of the furnace door;

[0019] The warning light is connected to the trigger switch via an electric wire, a high temperature sensor is installed inside the furnace door close to the furnace body, and the high temperature sensor is connected to the motor via an electric wire.

[0020] Compared with the prior art, the beneficial effects of the utility model are: the furnace door closing structure of the electric heating furnace, the positioning rod can slide out of the interior of the positioning groove when it moves, and the rotating disk can be operated to open the furnace door at this time, so that the furnace door closing structure has a temperature monitoring function, which can prevent the staff from opening the furnace door rashly and causing injuries. Since the reaction force of the pushing block on the furnace body will push the furnace door, the furnace door can be opened by the hinge when it is pushed, so the furnace door can be provided with an auxiliary opening structure when it is opened.

[0021] 1. After the furnace body finishes heating the internal workpiece, the high temperature sensor can monitor the temperature inside the furnace body. When the temperature inside the furnace body reaches the set value, the high temperature sensor can send instructions to the motor. After receiving the instructions, the motor can work. When the motor works, it can drive the positioning rod to move through the gear and the tooth block. When the positioning rod moves, it can slide out of the positioning groove. At this time, the rotating disk can be operated to open the furnace door, so that the furnace door closing structure has the temperature monitoring function to avoid injuries caused by the staff opening the furnace door rashly;

[0022] 2. When the furnace door needs to be opened, it can be turned by pulling the handle. When the handle is turned, its bottom end will push the extrusion rod. When the extrusion rod is pushed, it can push the pushing block to squeeze the furnace body. Since the reaction force of the pushing block on the furnace body will push the furnace door, the furnace door can be opened through the hinge when pushed, so that the furnace door can have an auxiliary opening structure when it is opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a right-side perspective structural diagram of the utility model;

[0024] Figure 2 This is a left-side perspective structural diagram of the utility model;

[0025] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the utility model;

[0026] Figure 4 For this utility model Figure 3 Enlarged structural diagram of part A.

[0027] In the figure: 1. furnace door; 2. hinge; 3. furnace body; 4. door opening assist assembly; 401. first rotating shaft; 402. handle; 403. first moving groove; 404. extrusion groove; 405. extrusion rod; 406. extrusion block; 407. spring; 408. push block; 5. fastening block; 6. second rotating shaft; 7. threaded rod; 8. internal threaded sleeve; 9. rotating disk; 10. anti-scalding locking assembly; 1001. mounting groove; 1002. motor; 1003. gear; 1004. guide block; 1005. second moving groove; 1006. positioning rod; 1007. gear block; 1008. trigger switch; 1009. positioning groove; 1010. warning light; 1011. high temperature sensor. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 3 , the utility model provides an embodiment: a furnace door closing structure of an electric heating furnace, comprising: a furnace door 1;

[0030] A hinge 2 is installed on the side of the furnace door 1, and a furnace body 3 is installed on the side of the hinge 2. A door opening assist assembly 4 is installed on the furnace door 1. A fastening block 5 is fixedly connected to the other side of the furnace door 1. A second rotating shaft 6 is installed on the front of the furnace body 3. A threaded rod 7 is rotatably connected to the second rotating shaft 6. An internally threaded sleeve 8 is threadedly connected to the side of the threaded rod 7. A rotating disk 9 is fixedly connected to the top of the internally threaded sleeve 8. An anti-scalding locking assembly 10 is installed between the furnace door 1 and the internally threaded sleeve 8.

[0031] It should be noted that, when the furnace body 3 completes the processing of the workpiece, the anti-scalding locking assembly 10 will detect the internal temperature of the furnace body 3. When the internal temperature of the furnace body 3 is lower than the specified value, the anti-scalding locking assembly 10 can work. After the anti-scalding locking assembly 10 works, the rotating disk 9 can be rotated. When the rotating disk 9 rotates, the internal threaded sleeve 8 can be driven to rotate. When the internal threaded sleeve 8 rotates, it can slide through the threaded rod 7. When the internal threaded sleeve 8 slides, the rotating disk 9 can be driven to separate from the fastening block 5. When the rotating disk 9 is separated from the fastening block 5, the internal threaded sleeve 8 and the threaded rod 7 can be driven to rotate by pulling the rotating disk 9. When the threaded rod 7 rotates, it can rotate through the second rotating shaft 6. When the internal threaded sleeve 8 rotates out of the fastening block 5, the furnace door 1 can be pulled by pulling the door opening assist assembly 4. When the furnace door 1 is pulled, it can be rotated open through the hinge 2 and the furnace body 3.

[0032] like Figure 4 As shown, the door opening assist assembly 4 includes: a first rotating shaft 401, the first rotating shaft 401 is fixedly connected to the front part of the furnace door 1, a handle 402 is rotatably connected to the first rotating shaft 401, a first movable groove 403 is opened through the surface of the furnace door 1, an extrusion groove 404 is opened on the inner side of the first movable groove 403, an extrusion rod 405 is movably connected inside the first movable groove 403, an extrusion block 406 is fixedly connected to the side of the extrusion rod 405 near the extrusion groove 404, a spring 407 is fixedly connected between the extrusion block 406 and the extrusion groove 404, and a push block 408 is fixedly connected to one end of the extrusion rod 405 near the furnace body 3.

[0033] It is worth noting that heating the furnace body 3 will cause a certain low pressure inside. At this time, the handle 402 can be pulled. When the handle 402 is pulled, it can rotate through the first rotating shaft 401. When the handle 402 rotates, the bottom end will push the extrusion rod 405. When the extrusion rod 405 is pushed, it can slide through the first moving groove 403. When the extrusion rod 405 slides, it can drive the extrusion block 406 to move. When the extrusion block 406 moves, it can slide through the extrusion groove 404. When the extrusion block 406 slides, it can squeeze the spring 407. When the extrusion rod 405 is pushed, it can drive the pushing block 408 to move. When the pushing block 408 moves to the surface of the furnace body 3, the pushing block 408 will squeeze the furnace body 3. Due to the reaction force of the pushing block 408 on the furnace body 3, the furnace door 1 will be pushed. When the furnace door 1 is pushed, it can be opened through the hinge 2.

[0034] like Figure 1 , Figure 2 and Figure 4As shown, the anti-scalding locking assembly 10 comprises: a mounting groove 1001, the mounting groove 1001 is provided inside the oven door 1, a motor 1002 is provided inside the mounting groove 1001, the motor 1002 is connected to the oven body 3 through an electric wire, a gear 1003 is fixedly connected to the output end of the motor 1002, a guide block 1004 is fixedly connected to the upper part of the mounting groove 1001, a second movable groove 1005 is provided between the oven door 1 and the fastening block 5, a positioning rod 1006 is movably connected between the guide block 1004 and the second movable groove 1005, and a positioning rod 1006 is fixed on the positioning rod 1006. A tooth block 1007 is connected, and a gear 1003 is meshed on the side of the tooth block 1007. A trigger switch 1008 is installed in the middle of the installation slot 1001 near the positioning rod 1006. A positioning slot 1009 is provided on the surface of the internal threaded sleeve 8. A warning light 1010 is installed on the surface of the furnace door 1. The warning light 1010 is connected to the trigger switch 1008 through an electric wire. A high-temperature sensor 1011 is installed inside the furnace door 1 near the furnace body 3. The high-temperature sensor 1011 will set the minimum temperature value, and the high-temperature sensor 1011 is connected to the motor 1002 through an electric wire.

[0035] It is understandable that when the heating of the workpiece is completed, the furnace body 3 will stop working, and the high temperature sensor 1011 will monitor the temperature inside the furnace body 3. When the high temperature sensor 1011 detects that the temperature is lower than the minimum value, the high temperature sensor 1011 will send a command to the motor 1002. The motor 1002 can work after receiving the command. When the motor 1002 works, it can drive the gear 1003 to rotate. When the gear 1003 rotates, it can drive the tooth block 1007 to mesh and move. When the tooth block 1007 moves, it can drive the positioning rod 1006 to move. When the positioning rod 1006 moves, it can slide through the guide block 1004, the second moving groove 1005 and the positioning groove 1009. When one end of the positioning rod 1006 slides out of the positioning groove 1009, the other end of the positioning rod 1006 will squeeze the trigger switch 1008. The trigger switch 1008 can work when squeezed. When the trigger switch 1008 works, the warning light 1010 can be started to work. When the warning light 1010 works, it can emit light to remind the staff. When the staff is reminded, they can open the furnace door 1.

[0036] Working principle: Figure 1-Figure 4As shown, when the furnace door closing structure of the electric heating furnace is used, when the heating of the workpiece is completed, the furnace body 3 will stop working, and the high temperature sensor 1011 will monitor the temperature inside the furnace body 3. When the high temperature sensor 1011 detects that the temperature is lower than the minimum value, the high temperature sensor 1011 will send a command to the motor 1002. After receiving the command, the motor 1002 can work. When the motor 1002 works, it can drive the gear 1003 to rotate. When the gear 1003 rotates, it can drive the tooth block 1007 to mesh and move. When the tooth block 1007 moves, it can drive the positioning rod 10 06 is moved, and the positioning rod 1006 can slide through the guide block 1004, the second moving groove 1005 and the positioning groove 1009 when moving. When one end of the positioning rod 1006 slides out of the positioning groove 1009, the other end of the positioning rod 1006 squeezes the trigger switch 1008, and the trigger switch 1008 can work when being squeezed. When the trigger switch 1008 works, the warning light 1010 can be started to work. When the warning light 1010 works, it can emit light to remind the staff, and the staff can open the furnace door 1 when being reminded;

[0037] When the rotating disk 9 rotates, the internal threaded sleeve 8 can be driven to rotate. When the internal threaded sleeve 8 rotates, the threaded sleeve 8 can slide through the threaded rod 7. When the threaded sleeve 8 slides, the rotating disk 9 can be driven to separate from the fastening block 5. When the rotating disk 9 is separated from the fastening block 5, the internal threaded sleeve 8 and the threaded rod 7 can be driven to rotate by pulling the rotating disk 9. When the threaded rod 7 rotates, it can rotate through the second rotating shaft 6.

[0038] When the internal threaded sleeve 8 rotates out of the fastening block 5, the handle 402 can be pulled. When the handle 402 is pulled, it can rotate through the first rotating shaft 401. When the handle 402 rotates, the bottom end will push the extrusion rod 405. When the extrusion rod 405 is pushed, it can slide through the first moving groove 403. When the extrusion rod 405 slides, it can drive the extrusion block 406 to move. When the extrusion block 406 moves, it can slide through the extrusion groove 404. When the extrusion block 406 slides, it can squeeze the spring 407. When the extrusion rod 405 is pushed, it can drive the pushing block 408 to move. When the pushing block 408 moves to the surface of the furnace body 3, the pushing block 408 will squeeze the furnace body 3. Due to the reaction force of the pushing block 408 squeezing the furnace body 3, the furnace door 1 will be pushed. When the furnace door 1 is pushed, it can be opened through the hinge 2. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A furnace door closing structure of an electric heating furnace, comprising: Furnace door (1), It is characterized by: A hinge (2) is installed on the side of the furnace door (1), a furnace body (3) is installed on the side of the hinge (2), a door opening assist assembly (4) is installed on the furnace door (1), a fastening block (5) is fixedly connected to the other side of the furnace door (1), a second rotating shaft (6) is installed on the front of the furnace body (3), a threaded rod (7) is rotatably connected to the second rotating shaft (6), an internally threaded sleeve (8) is threadedly connected to the side of the threaded rod (7), a rotating disk (9) is fixedly connected to the top of the internally threaded sleeve (8), and an anti-scalding locking assembly (10) is installed between the furnace door (1) and the internally threaded sleeve (8).

2. The furnace door closing structure of an electric heating furnace according to claim 1, characterized in that: The door opening assist assembly (4) comprises: a first rotating shaft (401), the first rotating shaft (401) being fixedly connected to the front part of the furnace door (1), and a handle (402) being rotatably connected to the first rotating shaft (401); A first moving groove (403) is formed through the surface of the furnace door (1).

3. The furnace door closing structure of an electric heating furnace according to claim 2, characterized in that: An extrusion groove (404) is provided on the inner side of the first movable groove (403), and an extrusion rod (405) is movably connected inside the first movable groove (403); An extrusion block (406) is fixedly connected to the side of the extrusion rod (405) close to the extrusion groove (404).

4. The furnace door closing structure of an electric heating furnace according to claim 3, characterized in that: A spring (407) is fixedly connected between the extrusion block (406) and the extrusion groove (404), and a push block (408) is fixedly connected to one end of the extrusion rod (405) close to the furnace body (3).

5. The furnace door closing structure of an electric heating furnace according to claim 1, characterized in that: The anti-scalding locking assembly (10) comprises: an installation groove (1001), the installation groove (1001) is provided inside the oven door (1), and a motor (1002) is installed inside the installation groove (1001); The motor (1002) is connected to the furnace body (3) via an electric wire, and the output end of the motor (1002) is fixedly connected to a gear (1003).

6. The electric heating furnace door closing structure according to claim 5, characterized in that: A guide block (1004) is fixedly connected to the upper portion of the installation groove (1001), and a second movable groove (1005) is provided between the furnace door (1) and the fastening block (5); A positioning rod (1006) is movably connected between the guide block (1004) and the second movable groove (1005).

7. The electric heating furnace door closing structure according to claim 6, characterized in that: A tooth block (1007) is fixedly connected to the positioning rod (1006), and a side surface of the tooth block (1007) is meshedly connected to a gear (1003); A trigger switch (1008) is installed in the middle of the installation slot (1001) close to the positioning rod (1006).

8. The furnace door closing structure of an electric heating furnace according to claim 7, characterized in that: A positioning groove (1009) is provided on the surface of the internally threaded sleeve (8), and a warning light (1010) is installed on the surface of the furnace door (1); The warning light (1010) is connected to the trigger switch (1008) via an electric wire, a high temperature sensor (1011) is installed inside the furnace door (1) close to the furnace body (3), and the high temperature sensor (1011) is connected to the motor (1002) via an electric wire.

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