Linkage locking device of carbonization kiln door

Abstract

The utility model relates to a carbonization kiln door linkage locking device which is characterized in that the carbonization kiln door linkage locking device comprises a kiln body and a kiln door rotationally hinged to a doorway of the kiln body, and a kiln door linkage locking mechanism is arranged on the kiln door; the kiln door linkage locking mechanism comprises a motor, a gear, a first rack, a first linkage lock fixing block, a first tensioning wheel, a first upper silver guide rail, a first upper silver sliding block set, a second rack, a second linkage lock fixing block, a second tensioning wheel, a second upper silver guide rail, a second upper silver sliding block set, a third rack, a connecting plate, a linkage lock fastener, a third linkage lock fixing block set and a T-shaped groove. A T-shaped groove guide rail, a third upper silver guide rail and a third upper silver sliding block group; according to the utility model, a plurality of latches can be simultaneously clamped into the bolt holes by utilizing one motor driving mechanism, so that the plurality of latches can be locked in a short time, a part of time can be saved, the error rate can be reduced, and the consequence that individual latches are not inserted into the bolt holes due to negligence is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a carbonization kiln door linkage locking device. BACKGROUND

[0002] The bamboo carbonization kiln door linkage locking device is a breakthrough in innovation for the current problems of low efficiency, high labor intensity, and many safety hazards in the opening and closing process of the kiln door during the production process of the bamboo carbonization kiln. The linkage locking device deeply integrates the gear and rack length and automatic control technology, aiming to comprehensively improve the bamboo loading and unloading automation level of the bamboo carbonization kiln, thereby significantly improving the production efficiency, reducing the production cost, and optimizing the working environment of workers. One of the core components of the device, the gear and rack linkage locking, is designed to use "low backlash" or "zero backlash" as much as possible. The linkage locking device has a long service life, stable operation, high reliability, and can ensure a constant transmission ratio. The linkage locking device improves the airtightness of the kiln door, has large power transmission, can stably clamp the linkage locking fixed block and fastener of the locking mechanism, and also ensures the locking stability of the kiln door. Even in long-term continuous operation or complex working conditions, the linkage locking fixed block and fastener remain stable and do not loosen, effectively avoiding the risk of sliding or displacement that may occur in traditional mechanical clamping methods, greatly enhancing the safety of the operation. The electric system is the key system for driving the gear rack lifting and translation of the linkage locking device. The electric system undergoes strict mechanical calculations and actual application scene checks to ensure stable operation under high load and high frequency operation. At the same time, the kiln door control system particularly incorporates kiln temperature and pressure sensing, and through precise temperature control and pressure regulation, the motor movement speed is accurately controlled, ensuring fast response and safe opening and closing of the operation, and ensuring smooth and non-impact action, further improving the overall performance and service life of the equipment.

[0003] Currently, the Chinese patent "Interlocking device for doors in incoming line cabinet and fixed metering cabinet" with announcement number CN216624942U is retrieved, which includes a connecting rod, one end of the connecting rod is provided with a first roller, the other end of the connecting rod is provided with a second roller, one end of the connecting rod close to the first roller is provided with a first connecting plate, the first connecting plate and the second connecting plate are connected with the inner side wall of the metering cabinet, a rotating arm is sleeved on the second roller, one end of the rotating arm away from the second roller is connected with the incoming line cabinet, the rotating arm is provided with an adjusting hole, an elastic member is arranged between the rotating arm and the second connecting plate, the interlocking device realizes the interlocking locking function of the incoming line cabinet and the metering cabinet, when the circuit breaker in the incoming line cabinet is in the working position, the interlocking device realizes the mechanical locking of the front and rear doors of the metering cabinet, prevents misoperation caused by electrical interlocking failure, prevents the operator from being injured, and prevents a series of illegal operations such as opening the metering cabinet door under the condition of the incoming line cabinet being electrified; but the device cannot lock the door body in multiple directions.

[0004] In addition, a Chinese patent "Rotary cam linkage sealing door locking device" with publication number CN109519100A is retrieved, which comprises: a locking outer frame assembly and a compression inner frame assembly, adopts a linkage pull rod to drive the synchronous rotation of multiple cams on three sides of the sealing door, so that the end face locking cam helical surface is one-to-one corresponding to the compression block on the door edge compression inner frame, and the occlusion is formed by pushing and extruding, so that the sealing door edge and the locking outer frame realize uniform extrusion contact, meet the sealing locking of the laboratory door with high environmental sealing requirement, and ensure the reliability of sealing and the precision of experiment; but the device cannot lock the door body in multiple directions. SUMMARY

[0005] In view of the above shortcomings of the prior art, the purpose of the present application is to provide a carbonization kiln door linkage locking device, which is rationally designed and facilitates locking the door body in multiple directions.

[0006] The bamboo carbonization kiln door linkage locking device of the present application is characterized by comprising a kiln body and a kiln door rotatably connected to the kiln body at the door opening position, wherein a kiln door linkage locking mechanism is arranged on the kiln door.

[0007] The kiln door linkage locking mechanism comprises a motor, a gear, a first gear rack, a first linkage lock fixing block, a first tensioning wheel, a first upper guide rail, a first upper sliding block group, a second gear rack, a second linkage lock fixing block, a second tensioning wheel, a second upper guide rail, a second upper sliding block group, a third gear rack, a connecting plate, a linkage lock fastener, a third linkage lock fixing block group, a T-shaped groove, a T-shaped groove guide rail, a third upper guide rail, and a third upper sliding block group.

[0008] The output end of the motor is connected to the gear, the gear is connected to the first gear rack, the second gear rack, and the third gear rack in a gear and rack assembly, the first upper sliding block group is composed of two upper sliding blocks and is fixed to the first gear rack by bolts, the second upper sliding block group is composed of two upper sliding blocks and is fixed to the second gear rack by bolts, the third upper sliding block group is composed of two upper sliding blocks and is fixed to the third gear rack by bolts, the upper sliding block group is connected to the upper guide rail in a sliding manner, the first gear rack, the second gear rack, and the third gear rack do not interfere with each other during sliding, but are uniformly controlled by the gear; the third gear rack is fixedly connected to the linkage lock fastener through the connecting plate and the bolts, and the two ends of the linkage lock fastener are connected to the T-shaped groove guide rail through the T-shaped groove in a sliding manner.

[0009] The peripheral side of the kiln body door opening is provided with the first linkage lock fixing block, the second linkage lock fixing block and the third linkage lock fixing block group with grooves, when the first rack, the second rack and the third rack are driven by the motor output end gear and slide to the direction away from the motor, the free end of the first rack, the second rack and the third rack is inserted into the groove of each linkage lock fixing block through the through slot of the door frame of the kiln door to realize the linkage locking of the kiln door and the kiln body.

[0010] Preferably, the first end of the connecting plate is fixedly connected to the free end of the third rack, the second end of the connecting plate is fixedly connected to the middle position of the linkage lock fastener, the linkage lock fastener is a long strip-shaped plate body, and the long strip-shaped plate body of the linkage lock fastener is inserted into the grooves of the three linkage lock fixing blocks of the third linkage lock fixing block group.

[0011] Preferably, the first end of the T-shaped groove is slidingly connected to the T-shaped groove guide rail, and the second end of the T-shaped groove is slidingly connected to the end of the linkage lock fastener.

[0012] Preferably, the kiln door comprises a door frame, an outer corner, a door bottom plate, a sealing strip, a left cover plate, an intermediate cover plate, a right cover plate, a motor support and a bolt assembly, the door frame comprises a rectangular frame and a horizontal and vertical grid arranged in the rectangular frame, the outer corner is wrapped and welded on the outer periphery of the rectangular frame of the door frame, the door bottom plate is a rectangular thin plate fixed by welding with the outer corner, the sealing strip is bonded to the four perimeters of the door bottom plate by glue, the left cover plate, the intermediate cover plate and the right cover plate are sequentially installed on one side of the outer corner, and the motor is installed on the motor support and locked and fixed by the bolt assembly.

[0013] Preferably, the kiln door is rotatably connected to the kiln body door opening through a door twist lock mechanism, the door twist lock mechanism comprises a first door hinge, a second door hinge, a door hinge shaft, a first deep groove ball bearing, a spacer sleeve, a second deep groove ball bearing, a thrust ball bearing and an elastic retaining ring for shaft, the door hinge shaft is concentrically and oppositely installed with the second door hinge, the first door hinge, the first deep groove ball bearing, the spacer sleeve, the second deep groove ball bearing and the thrust ball bearing, and is fixed by the elastic retaining ring for shaft.

[0014] Preferably, the kiln door is provided with a control system, the control system comprises a control box, a control switch, a control transformer, a button switch, a micro switch support and a micro switch, the control box is riveted on the right cover plate, the control switch, the control transformer and the button switch are installed in the control box, the micro switch support is installed on the third linkage lock fixing block group, the micro switch is connected to the micro switch support by bolts, and when the long strip-shaped plate body of the linkage lock fastener is inserted into the grooves of the third linkage lock fixing block group, the micro switch is triggered.

[0015] Preferably, the first upper silver guide rail is fixed to the door frame by a plurality of bolts, the first upper silver sliding block cooperates with the upper silver guide rail to form a guide, and the first rack is fixed to the first upper silver sliding block by a plurality of bolts, so that the first rack can only axially slide in five degrees of freedom.

[0016] Preferably, the third upper silver guide rail is fixed to the door frame by a plurality of bolts, the third upper silver sliding block cooperates with the upper silver guide rail to form a guide, the third rack is fixed to the third upper silver sliding block by a plurality of bolts, the third rack is connected to the linkage fastener, the third rack is driven to move by the rotation of the gear, the linkage fastener is driven to move by the movement of the third rack, the T-shaped groove is welded to the linkage fastener, the T-shaped groove guide rail is welded to the door frame, and the T-shaped groove guide rail cooperates with the T-shaped groove to form a guide to control five degrees of freedom.

[0017] The working method of the bamboo carbonization kiln door linkage locking device,

[0018] Opening the kiln door: pressing the control switch, the motor is powered and rotates clockwise; the gear on the motor output shaft drives the first rack, the second rack and the third rack to move; the free ends of the first rack and the second rack are away from the first linkage lock fixed block and the second linkage lock fixed block, the linkage lock fastener is away from the third linkage lock fixed block group and contacts the micro switch to send an instruction to the motor to stop working, and the kiln door is manually pulled to open the kiln door;

[0019] Closing the kiln door: manually pushing the kiln door, temporarily pressing the kiln door by manpower; pressing the control switch; the motor is powered and rotates counterclockwise; the gear drives the first rack, the second rack and the third rack to move; the free ends of the first rack and the second rack are inserted into the first linkage lock fixed block and the second linkage lock fixed block, and the linkage lock fastener is inserted into the third linkage lock fixed block group and contacts the micro switch to send an instruction to the motor to stop working; the kiln door is closed.

[0020] The utility model can utilize one motor to drive linkage locking mechanism to make multiple door latches insert into eyelets at the same time, can lock multiple door latches in a short time, can save part of time and also can prevent the consequence that individual door latches are not inserted into eyelets due to negligence. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the three-dimensional structure schematic diagram (omitting left cover plate, middle cover plate and right cover plate) of the utility model;

[0022] Figure 2 It is the door frame structure schematic diagram of the utility model;

[0023] Figure 3 A cover plate three-dimensional structure schematic view of the utility model is shown in the figure;

[0024] Figure 4 A motor installation three-dimensional structure schematic view of the utility model is shown in the figure;

[0025] Figure 5 A linkage lock mechanism three-dimensional structure schematic view of the utility model is shown in the figure;

[0026] Figure 6 A door hinge mechanism three-dimensional structure schematic view of the utility model is shown in the figure;

[0027] Figure 7 A door hinge mechanism three-dimensional structure assembly schematic view of the utility model is shown in the figure;

[0028] Figure 8 A control system box installation schematic view of the utility model is shown in the figure;

[0029] Figure 9 A micro switch three-dimensional structure schematic view of the utility model is shown in the figure;

[0030] Figure 10 A first lock catch mechanism schematic view of the utility model is shown in the figure;

[0031] Figure 11 A third lock catch mechanism schematic view of the utility model is shown in the figure;

[0032] Figure 12 A Figure 1 partial view is shown in the figure;

[0033] Figure 13 A kiln door opening step schematic view of the utility model is shown in the figure;

[0034] Figure 14 A kiln door closing step schematic view of the utility model is shown in the figure;

[0035] 1, kiln door; 101, door frame; 102, door outer corner; 103, door bottom plate; 104, sealing strip; 105, left cover plate; 106, middle cover plate; 107, right cover plate; 108, motor support; 109, bolt assembly; 110, through groove; 2, kiln door linkage locking system; 201, motor; 202, gear; 203 first rack; 204, first linkage lock fixing block; 205, first tensioning wheel; 206, first silver guide rail; 207, first silver sliding block group; 208, second rack; 209, second linkage lock fixing block; 210, second tensioning wheel; 211, second silver guide rail; 212, second silver sliding block group; 213, third rack; 214, connecting plate; 215, linkage lock fastener; 216, third linkage lock fixing block group; 217, T-shaped groove; 218, T-shaped groove guide rail; 219, third silver guide rail; 220, third silver sliding block group; 3, door twist lock mechanism; 301, door hinge A; 302, door hinge B; 303, door hinge shaft; 304, deep groove ball bearing; 305, spacer sleeve; 306, deep groove ball bearing; 307, thrust ball bearing; 308, elastic collar for shaft; 4, control system; 401, control box; 402, control switch; 403, control transformer; 404, push button switch; 405, micro switch support and 406, micro switch. DETAILED DESCRIPTION

[0036] The above is only the preferred embodiment of the present application, and any change and modification made within the scope of the present application should be included in the scope of the present application.

[0037] The kiln door linkage locking device of the bamboo carbonization kiln comprises a kiln body and a kiln door 1 rotatably connected to the kiln body A door opening position, wherein the kiln door 1 is provided with a kiln door linkage locking mechanism 2, and the kiln body A can be a rectangular cuboid kiln body made of bricks and stones, or a rectangular cuboid kiln body made of steel.

[0038] The kiln door linkage locking mechanism 2 comprises a motor 201, a gear 202, a first rack 203, a first linkage lock fixing block 204, a first tensioning wheel 205, a first silver guide rail 206, a first silver sliding block group 207, a second rack 208, a second linkage lock fixing block 209, a second tensioning wheel 210, a second silver guide rail 211, a second silver sliding block group 212, a third rack 213, a connecting plate 214, a linkage lock fastener 215, a third linkage lock fixing block group 216, a T-shaped groove 217, a T-shaped groove guide rail 218, a third silver guide rail 219 and a third silver sliding block group 220.

[0039] The output end of the motor 201 is connected with the gear 202, the gear 202 rotates under the action of the motor, the gear 202 is in meshing transmission connection with the first rack 203, the second rack 208 and the third rack 213, and the first rack 203, the second rack 208 and the third rack 213 are driven to stretch and contract under the rotation of the gear 202.

[0040] The first upper silver slider group 207 is composed of two upper silver sliders and is fixed with the first rack 203 through bolt connection, the two upper silver sliders are arranged at intervals on the first rack 203, the second upper silver slider group 212 is composed of two upper silver sliders and is fixed with the second rack 208 through bolt connection, the two upper silver sliders are arranged at intervals on the second rack 208, and the third upper silver slider group 220 is composed of two upper silver sliders and is fixed with the third rack 213 through bolt connection, the two upper silver sliders are arranged at intervals on the third rack 213, and the upper silver slider group is in sliding fit connection with the upper silver guide rail.

[0041] The first rack 203, the second rack 208 and the third rack 213 do not interfere with each other in the sliding process, but the moving distances of the three racks are consistent when the motor rotates. Specifically, the axial dimension of the gear 202 is relatively long, the first rack 203, the second rack 208 and the third rack 213 are in meshing transmission at different positions of the gear 202 (as shown in the figure, wherein the first rack 203 is parallel to the second rack 208 and located at the opposite side of the gear 202, the third rack 213 passes between the first rack 203 and the second rack 208, or the third rack 213 is above the upper side of the first rack 203); the third rack 213 is in vertical fixed connection with the linkage lock piece 215 through the connecting plate 214 and the bolt, and the two ends of the linkage lock piece 215 are in sliding connection on the T-shaped groove guide rail 218 through the T-shaped groove 217. Figure 5 The circumferential side of the kiln body door is provided with the first linkage lock fixing block 204, the second linkage lock fixing block 209 and the third linkage lock fixing block group 216 with grooves (i.e. eyelets), when the first rack 203, the second rack 208 and the third rack 213 slide and elongate in the direction away from the motor 201 under the driving action of the gear 202 at the output end of the motor 201, the free ends of the first rack 203, the second rack 208 and the third rack 213 pass through the through grooves 110 (provided on the three side edges of the door frame 101) of the door frame 101 of the kiln door 1 and are inserted into the grooves (i.e. eyelets) of the linkage lock fixing blocks, that is, the linkage locking of the kiln door 1 and the kiln body is realized.

[0042]

[0043] ​The first end of the connecting plate 214 is fixedly connected to the free end of the third rack 213, and the second end of the connecting plate 214 is fixedly connected to the middle part of the linkage lock piece 215, which is a long strip-shaped plate body inserted into the grooves of the three linkage lock fixing blocks of the third linkage lock fixing block set 216.

[0044] The first end of the T-shaped groove 217 is slidably connected to the T-shaped groove guide rail 218, and the second end of the T-shaped groove 217 is slidably connected to the end of the linkage lock piece 215.

[0045] Specifically, the kiln door comprises a door frame 101, a door outer corner 102, a door bottom plate 103, a sealing strip 104, a left cover plate 105, a middle cover plate 106, a right cover plate 107, a motor support 108, and a bolt assembly 109. The door frame 101 comprises a rectangular frame and a horizontal and vertical grid arranged in the rectangular frame. The door outer corner 102 is wrapped and welded around the outer periphery of the rectangular frame of the door frame 101. The door bottom plate 103 is a rectangular thin plate fixed by welding with the door outer corner 102. The sealing strip 104 is bonded around the four edges of the door bottom plate 103 by glue. The left cover plate 105, the middle cover plate 106, and the right cover plate 107 are sequentially installed on one side of the door outer corner 102. The motor 201 is installed on the motor support 108 and locked and fixed by the bolt assembly 109.

[0046] The door outer corner 102 is a stainless steel thin plate wrapped and welded around the outer periphery of the rectangular frame of the door frame 101.

[0047] The kiln door 1 is rotatably connected to the door opening of the kiln body by the door twist lock mechanism 3. The door twist lock mechanism 3 comprises a first door hinge 301, a second door hinge 302, a door hinge shaft 303, a first deep groove ball bearing 304, a spacer sleeve 305, a second deep groove ball bearing 306, a thrust ball bearing 307, and an elastic retaining ring for shaft 308. The door hinge shaft 303 is concentrically paired and installed with the second door hinge 302, the first door hinge 301, the first deep groove ball bearing 304, the spacer sleeve 305, the second deep groove ball bearing 306, and the thrust ball bearing 307 in sequence, and is fixed by the elastic retaining ring for shaft 308.

[0048] The kiln door 1 is provided with a control system 4, the control system 4 comprises a control box 401, a control switch 402, a control transformer 403, a button switch 404, a micro switch support 405 and a micro switch 406, the control box 401 is riveted on the right cover plate 107, the control switch 402, the control transformer 403 and the button switch 404 are arranged in the control box 401, the control switch 402, the control transformer 403 and the button switch 404 are used for controlling the work of the motor, which is prior art, and will not be repeated here; the micro switch support 405 is arranged on the third linkage lock fixing block group 216, the micro switch 406 is connected to the micro switch support 405 through bolts, when the long strip-shaped plate body of the linkage lock fastener 215 is inserted into the groove of the third linkage lock fixing block group 216, the micro switch 406 is triggered.

[0049] The first upper silver guide rail 206 is fixedly connected with the door frame 101 through a plurality of bolts, the first upper silver sliding block 207 is guided in cooperation with the upper silver guide rail 206, and the first rack 203 is fixedly connected with the upper silver sliding block 207 through bolts, so that the first rack 203 can only axially slide in five degrees of freedom.

[0050] The third upper silver guide rail 219 is fixedly connected with the door frame 101 through a plurality of bolts, the third upper silver sliding block 220 is guided in cooperation with the upper silver guide rail 219, and the third rack 213 is fixedly connected with the third upper silver sliding block 220 through bolts, the third rack 213 is connected with the linkage lock fastener 215, the third rack 213 is driven to move by the rotation of the gear 202, the linkage lock fastener 215 is driven to move by the movement of the third rack 213, the T-shaped groove 217 is welded with the linkage lock fastener 215, the T-shaped groove guide rail 218 is welded with the door frame 101, the T-shaped groove guide rail 218 is guided in cooperation with the T-shaped groove, and the five degrees of freedom of the T-shaped groove guide rail 218 are controlled, so that the T-shaped groove guide rail 218 can axially slide and bear radial tension.

[0051] The working method of the bamboo carbonization kiln door linkage locking device,

[0052] Opening kiln door: press control switch 402, motor 201 is powered and rotates clockwise; gear 202 on the output shaft of motor 201 drives first rack 203, second rack 208 and third rack 213 to move; the free end of first rack 203 and second rack 208 is away from first linkage lock fixing block 204 and second linkage lock fixing block 209, linkage lock catch 215 is away from third linkage lock fixing block group 216 and contacts micro switch to send instruction to motor to stop working, manually pull kiln door 1 to open kiln door;

[0053] Closing kiln door: manually push kiln door 1; press control switch 402; make motor 201 be powered and rotate counterclockwise; gear 202 drives first rack 203, second rack 208 and third rack 213 to move; the free end of first rack 203 and second rack 208 is inserted into first linkage lock fixing block 204 and second linkage lock fixing block 209, linkage lock catch 215 is inserted into third linkage lock fixing block group 216 and contacts micro switch to send instruction to motor to stop working; kiln door is closed.

[0054] The utility model discloses can utilize a motor drive mechanism to make multiple door latches insert into eyelets simultaneously, can lock multiple door latches in short time, can save part of time and also can reduce failure rate, prevent the consequence that individual door latches do not insert into eyelets due to negligence.

Claims

1. A carbonization kiln door linkage locking device, characterized by: The kiln body and the kiln door (1) rotatingly connected at the door opening position of the kiln body are provided with a kiln door linkage locking mechanism (2); The kiln door linkage locking mechanism (2) comprises a motor (201), a gear (202), a first rack (203), a first linkage lock fixing block (204), a first tension pulley (205), a first silver guide rail (206), a first silver sliding block group (207), a second rack (208), a second linkage lock fixing block (209), a second tension pulley (210), a second silver guide rail (211), a second silver sliding block group (212), a third rack (213), a connecting plate (214), a linkage lock fastener (215), a third linkage lock fixing block group (216), a T-shaped groove (217), a T-shaped groove guide rail (218), a third silver guide rail (219), and a third silver sliding block group (220). The output end of the motor (201) is connected to the gear (202), the gear (202) is connected to the first rack (203), the second rack (208), and the third rack (213) to form a gear and rack assembly, the first silver sliding block group (207) is composed of two silver sliding blocks and is fixed to the first rack (203) by bolts, the second silver sliding block group (212) is composed of two silver sliding blocks and is fixed to the second rack (208) by bolts, the third silver sliding block group (220) is composed of two silver sliding blocks and is fixed to the third rack (213) by bolts, the silver sliding block group is slidably connected to the silver guide rail, the first rack (203), the second rack (208), and the third rack (213) do not interfere with each other during sliding, the third rack (213) is fixedly connected to the linkage lock fastener (215) by the connecting plate (214) and bolts, and the two ends of the linkage lock fastener (215) are slidably connected to the T-shaped groove guide rail (218) by the T-shaped groove (217). The first linkage lock fixing block (204), the second linkage lock fixing block (209), and the third linkage lock fixing block group (216) are provided on the circumferential side of the kiln body door opening, the free ends of the first rack (203), the second rack (208), and the third rack (213) can be inserted into the recesses of the linkage lock fixing blocks through the through grooves of the door frame (101) of the kiln door (1) to achieve linkage locking of the kiln door (1) and the kiln body.

2. The carbonization kiln door interlocking locking device according to claim 1, wherein: The first end of the connecting plate (214) is fixedly connected to the free end of the third rack (213), the second end of the connecting plate (214) is fixedly connected to the middle position of the linkage lock fastener (215), the linkage lock fastener (215) is a long strip-shaped plate body, and the long strip-shaped plate body of the linkage lock fastener (215) is inserted into the recesses of the three linkage lock fixing blocks of the third linkage lock fixing block group (216).

3. The carbonization kiln door interlocking locking device of claim 2, wherein: The first end of the T-shaped groove (217) is slidably connected to a T-shaped groove guide rail (218), and the second end of the T-shaped groove (217) is slidably connected to the end of the linkage lock piece (215).

4. The carbonization kiln door interlocking locking device of claim 1, wherein: The kiln door comprises a door frame (101), a door outer corner (102), a door bottom plate (103), a sealing strip (104), a left cover plate (105), an intermediate cover plate (106), a right cover plate (107), a motor support (108) and a bolt assembly (109), the door frame (101) comprises a rectangular frame and a transverse and longitudinal grid arranged in the rectangular frame, the door outer corner (102) is wrapped and welded on the outer periphery of the rectangular frame of the door frame (101), and the door bottom plate (103) is a rectangular thin plate fixed with the door outer corner (102) by welding.

5. The carbonization kiln door interlocking locking device of claim 4, wherein: The sealing strip (104) is bonded to the four peripheral edges of the door bottom plate (103) by glue, and the left cover plate (105), the intermediate cover plate (106) and the right cover plate (107) are sequentially installed on one side of the door outer corner (102); the motor (201) is installed on the motor support (108) and locked and fixed by the bolt assembly (109).

6. The carbonization kiln door interlocking locking device of claim 1, wherein: The kiln door (1) is rotatably connected to the kiln body door opening position by a door twist lock mechanism (3), the door twist lock mechanism (3) comprises a first door hinge (301), a second door hinge (302), a door hinge shaft (303), a first deep groove ball bearing (304), a spacer sleeve (305), a second deep groove ball bearing (306), a thrust ball bearing (307) and an elastic retaining ring for shaft (308), the door hinge shaft (303) is coaxially and pairedly installed with the second door hinge (302), the first door hinge (301), the first deep groove ball bearing (304), the spacer sleeve (305), the second deep groove ball bearing (306) and the thrust ball bearing (307) in sequence, and is fixed by the elastic retaining ring for shaft (308).

7. The carbonization kiln door interlocking locking device of claim 1, wherein: A control system (4) is installed on the kiln door (1), the control system (4) comprises a control box (401), a control switch (402), a control transformer (403), a button switch (404), a micro switch support (405) and a micro switch (406), the control box (401) is riveted on the right cover plate (107), the control switch (402), the control transformer (403) and the button switch (404) are installed in the control box (401), the micro switch support (405) is installed on the third linkage lock fixing block group (216), the micro switch (406) is connected to the micro switch support (405) by bolts, and when the long strip-shaped plate body of the linkage lock piece (215) is inserted into the groove of the third linkage lock fixing block group (216), the micro switch (406) is triggered.

8. The carbonization kiln door interlocking locking device of claim 1, wherein: The first upper silver guide rail (206) is fixed with the door frame (101) through a plurality of bolt connections, the first upper silver sliding block group (207) cooperates with the first upper silver guide rail (206) to form a guide, and the first rack (203) is fixed with the first upper silver sliding block group (207) through a bolt connection, so that the first rack (203) can only axially slide in five degrees of freedom.

9. The carbonization kiln door interlocking locking device of claim 1, wherein: The first tensioning wheel (205) abuts the side of the first rack (203) to add radial load to the first rack (203), so that the first rack (203) is balanced when working and bearing radial load caused by the gear; the second tensioning wheel (210) abuts the side of the second rack (208) to add radial load to the second rack (208), so that the second rack (208) is balanced when working and bearing radial load caused by the gear.

10. The carbonization kiln door interlocking locking device of claim 1, wherein: The third upper silver guide rail (219) is fixed with the door frame (101) through a plurality of bolt connections, the third upper silver sliding block group (220) cooperates with the third upper silver guide rail (219) to form a guide, the third rack (213) is fixed with the third upper silver sliding block group (220) through a bolt connection, the third rack (213) is connected with the linkage fastener (215), the third rack (213) is moved by rotating the gear (202), the linkage fastener (215) is moved by the third rack (213), the T-shaped groove (217) is welded with the linkage fastener (215), the T-shaped groove guide rail (218) is welded with the door frame (101), the T-shaped groove guide rail (218) cooperates with the T-shaped groove to form a guide, and five degrees of freedom are controlled.

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