Bamboo carbonizing kiln door linkage locking device and working method thereof

Abstract

The present invention relates to a bamboo carbonizing kiln door linkage locking device and a working method thereof, which is characterized in that: the device comprises a kiln body and a kiln door rotatably hinged at the kiln body door position, wherein the kiln door is provided with a kiln door linkage locking mechanism; 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 slider group, a second rack, a second linkage lock fixing block, a second tensioning wheel, a second upper silver guide rail, a second upper silver slider group, a third rack, a connecting plate, a linkage lock fastener, a third linkage lock fixing block group, a T-slot, a T-slot guide rail, a third upper silver guide rail and a third upper silver slider group; the device can use a motor drive mechanism to simultaneously engage multiple door bolts into bolt eyes, thereby achieving locking of multiple door bolts in a short time, saving some time and preventing the consequence that individual door bolts are not inserted into the bolt eyes due to negligence.

Description

Technical field:

[0002] The invention relates to a linkage locking device for a bamboo carbonizing kiln door and a working method thereof. Background technology:

[0004] The interlocking locking device for bamboo carbonizing kiln doors represents an innovative technological breakthrough, addressing the current challenges of low efficiency, high labor intensity, and numerous safety hazards in the door opening and closing process. This interlocking locking device integrates rack and pinion length control with automated control technology, aiming to comprehensively enhance the automation of bamboo loading and unloading in bamboo carbonizing kilns, significantly improving production efficiency, reducing costs, and optimizing the working environment for workers. The interlocking locking device, a core component of the device, is designed to utilize low or zero backlash. It offers long life, stable operation, high reliability, and a consistent transmission ratio. The interlocking locking device improves the airtightness of the kiln door, transmits high power, and securely holds the interlocking lock block and fasteners in place. It also ensures door locking stability, maintaining a secure hold even during long-term operation or under complex working conditions. This effectively eliminates the risk of slippage or displacement associated with traditional mechanical clamping methods, significantly enhancing operational safety. The electric system is the key system that drives the lifting and translation of the rack in the interlocking locking mechanism. Stringent mechanical calculations and practical application scenario verification ensure stable operation under high-load, high-frequency operation. Furthermore, the kiln door control system incorporates temperature and pressure sensing within the kiln. Through precise temperature control and pressure regulation, precise control of the motor's movement speed is achieved, ensuring both rapid operational response and safe opening and closing, while ensuring smooth, impact-free movement, further enhancing the overall performance and service life of the equipment.

[0005] Existing locking techniques often rely on individually securing multiple latches, a method that often presents certain deficiencies in actual locking operations. Specifically, because each latch must be secured individually, it's easy for workers to overlook a latch, resulting in a latch not being secured, ultimately leaving the door unlocked. In practice, installers must tighten each latch individually, increasing the time and effort required. This inefficient approach can lead to delays in the entire workflow and impact production schedules.

[0006] A Chinese patent application, "Interlocking Device for the Doors of an Incoming Cabinet and a Fixed Metering Cabinet," has been retrieved, with publication number CN216624942U. The patent comprises a connecting rod, one end of which is provided with a first roller, the other end of which is provided with a second roller, a first connecting plate provided on the end of the connecting rod proximate the first roller, both of which are connected to the inner wall of the metering cabinet, a rotating arm sleeved on the second roller, the end of the rotating arm remote from the second roller being connected to the incoming cabinet, an adjustment hole provided on the rotating arm, and an elastic member disposed between the rotating arm and the second connecting plate. The interlocking device achieves a linked locking function between the incoming cabinet and the metering cabinet. When the circuit breaker in the incoming cabinet is in the operating position, the interlocking device mechanically locks the front and rear doors of the metering cabinet, preventing erroneous operation due to electrical interlock failure, which could harm the operator, and preventing illegal operations such as opening the metering cabinet door while the incoming cabinet is energized to steal electricity. However, the device is unable to latch the door in multiple directions.

[0007] In addition, a Chinese patent "A rotary cam-linked sealing door locking device" with publication number CN109519100A was retrieved, which includes: a locking outer frame assembly and a pressing inner frame assembly. A linkage pull rod is used to drive multiple cams on three sides of the sealing door to rotate synchronously, so that the spiral surface of the end face locking cam corresponds to the pressing protrusion on the door edge pressing inner frame one by one, and the extrusion is pushed to form an engagement, so that the sealing door edge and the locking outer frame are evenly extruded and contacted, meeting the sealing locking requirements of laboratory doors with high environmental sealing requirements, ensuring reliable sealing and accurate experiments; but the device cannot perform multi-directional latching and locking of the door body. Summary of the invention:

[0009] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a bamboo carbonizing kiln door linkage locking device and a working method thereof. The bamboo carbonizing kiln door linkage locking device and the working method thereof are reasonably designed, which are conducive to realizing multi-directional latching and locking of the door body and are convenient and quick to operate.

[0010] The bamboo carbonization kiln door linkage locking device of the present invention is characterized by comprising a kiln body and a kiln door rotatably hinged at the kiln body door position, wherein the kiln door is provided with a kiln door linkage locking mechanism;

[0011] The kiln door linkage locking mechanism includes 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 slider group, a second rack, a second linkage lock fixing block, a second tensioning wheel, a second upper silver guide rail, a second upper silver slider group, a third rack, a connecting plate, a linkage lock fastener, a third linkage lock fixing block group, a T-slot, a T-slot guide rail, a third upper silver guide rail and a third upper silver slider group;

[0012] The output end of the motor is connected to the gear, and the gear forms a gear-rack assembly connection with the first rack, the second rack, and the third rack. The first upper silver slider group consists of two upper silver sliders and is fixed by bolts to the first rack, the second upper silver slider group consists of two upper silver sliders and is fixed by bolts to the second rack, the third upper silver slider group consists of two upper silver sliders and is fixed by bolts to the third rack, and the upper silver slider group is slidably connected to the upper silver guide rail, and the first rack, the second rack, and the third rack do not interfere with each other during the sliding process, but are at the same time controlled by the gear and have the same displacement distance; the third rack is vertically fixedly connected to the linkage lock fastener by a connecting plate and bolts, and both ends of the linkage lock fastener are slidably connected to the T-slot guide rail through a T-slot;

[0013] The first interlocking lock fixing block, the second interlocking lock fixing block and the third interlocking lock fixing block group with grooves are provided on the peripheral side of the kiln body door. When the first rack, the second rack and the third rack slide and extend away from the motor under the driving action of the gear on the output end of the motor, the free ends of the first rack, the second rack and the third rack pass through the through groove of the door frame of the kiln door and are inserted into the grooves of each interlocking lock fixing block to realize the interlocking locking of the kiln door and the kiln body.

[0014] Preferably, the first end of the above-mentioned connecting plate is fixedly connected to the free end of the third rack, and the second end of the connecting plate is fixedly connected to the middle position of the interlocking lock fastener, and the interlocking lock fastener is a long strip plate body, and the long strip plate body of the interlocking lock fastener is inserted into the grooves of the three interlocking lock fixing blocks of the third interlocking lock fixing block group.

[0015] Preferably, the first end of the T-slot is slidably connected to the T-slot guide rail, and the second end of the T-slot is slidably connected to the end of the interlocking lock member.

[0016] Preferably, the kiln door includes a door frame, an outer door corner, a door bottom plate, a sealing strip, a left cover plate, a middle cover plate, a right cover plate, a motor bracket and a bolt assembly. The door frame includes a rectangular frame and horizontal and vertical grilles arranged in the rectangular frame. The outer door corner is wrapped and welded to the outer periphery of the rectangular frame of the door frame. The door bottom plate is a rectangular thin plate and is fixed to the outer door corner by welding. The sealing strip is glued to the four sides of the door bottom plate by glue. The left cover plate, the middle cover plate and the right cover plate are sequentially installed on one side of the outer door corner; the motor is installed on the motor bracket and locked and fixed by a bolt assembly.

[0017] Preferably, the kiln door is rotatably hinged at the kiln door position through a door hinge locking mechanism, and the door hinge locking mechanism includes 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 the shaft. The door hinge shaft is concentrically paired 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 in sequence, and is fastened and fixed by an elastic retaining ring for the shaft.

[0018] Preferably, a control system is installed on the above-mentioned kiln door, and the control system includes a control box, a control switch, a control transformer, a push button switch, a micro switch bracket and a micro switch. The control box is riveted on the right cover plate, and the control switch, the control transformer and the push button switch are installed in the control box. The micro switch bracket is installed on the third interlock fixing block group. The micro switch is connected to the micro switch bracket by bolts. When the long strip plate of the interlock fastener is inserted into the groove of the third interlock fixing block group, the micro switch is triggered.

[0019] Preferably, the first upper silver guide rail is fixed to the door frame via a plurality of bolts, the first upper silver slider cooperates with the upper silver guide rail to form a guide, and the first rack is fixed to the upper silver slider via bolts to limit the first rack's five degrees of freedom to only axial sliding; during operation, the first rack is driven by the gear to move, and the tensioning wheel abuts against the side of the first rack to add a radial load to the first rack, so that the first rack is balanced when it bears the radial load brought by the gear during operation. The same applies to the second rack;

[0020] Preferably, the third upper silver guide rail is fixed to the door frame by a plurality of bolts, the third upper silver slider cooperates with the upper silver guide rail to form a guide, the third rack is fixed to the third upper silver slider by bolts, the third rack is connected to the linkage fastener, the third rack is driven to move by the rotation of the gear, the movement of the third rack drives the linkage lock fastener, the T-slot is welded to the linkage fastener, the T-slot guide rail is welded to the door frame, the T-slot guide rail cooperates with the T-slot to form a guide, controlling its five degrees of freedom so that it can only slide axially and withstand radial tension.

[0021] The working method of the bamboo carbonizing kiln door linkage locking device of the present invention is as follows:

[0022] Open the kiln door: Press the control switch, the motor rotates clockwise when powered; 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 leave the first interlock fixing block and the second interlock fixing block, the interlock fastener leaves the third interlock fixing block group and contacts the micro switch to send a command to the motor to stop working, and the kiln door is manually pulled to open;

[0023] Close the kiln door: push the kiln door manually; press the control switch; make the motor rotate counterclockwise when powered; 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 interlocking lock fixing block and the second interlocking lock fixing block, the interlocking lock fastener is inserted into the third interlocking lock fixing block group and contacts the micro switch to send a command to the motor to stop working; the kiln door is closed.

[0024] The present invention can utilize a motor drive mechanism to simultaneously engage multiple door bolts into bolt eyes, thereby achieving locking of multiple door bolts in a short time, saving some time and reducing the error rate, thereby preventing the consequence of individual door bolts not being inserted into the bolt eyes due to negligence. Description of the drawings:

[0026] Figure 1 Schematic diagram of the three-dimensional structure of the present invention (left cover, middle cover and right cover are omitted);

[0027] Figure 2 This is a schematic diagram of the door frame structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of the cover plate of the present invention;

[0029] Figure 4 This is a schematic diagram of the three-dimensional structure of the motor installation of the present invention;

[0030] Figure 5 It is a schematic diagram of the three-dimensional structure of the interlocking locking mechanism of the present invention;

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the door hinge mechanism of the present invention;

[0032] Figure 7 This is a schematic diagram of the three-dimensional assembly structure of the door hinge mechanism of the present invention;

[0033] Figure 8 This is a schematic diagram of the installation of the control system box of the present invention;

[0034] Figure 9 This is a schematic diagram of the three-dimensional structure of the micro switch of the present invention;

[0035] Figure 10 is a schematic diagram of the first locking mechanism of the present invention;

[0036] Figure 11 is a schematic diagram of the third locking mechanism of the present invention;

[0037] Figure 12 for Figure 1 A partial view of

[0038] Figure 13 This is a schematic diagram of the kiln door opening steps of the present invention;

[0039] Figure 14 This is a schematic diagram of the kiln door closing steps of the present invention;

[0040] 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 bracket; 109. Bolt assembly; 110. Through slot; 2. Kiln door interlocking locking system; 201. Motor; 202. Gear; 203. First rack; 204. First interlocking lock fixing block; 205. First tensioning pulley; 206. First upper silver guide rail; 207. First upper silver slider group; 208. Second rack; 209. Second interlocking lock fixing block; 210. Second tensioning pulley; 211. Second upper silver guide rail; 212. Second upper silver slider group; 213. 3. Third rack; 214. Connecting plate; 215. Interlocking lock fastener; 216. Third interlocking lock fixing block assembly; 217. T-slot; 218. T-slot guide rail; 219. Third upper silver guide rail; 220. Third upper silver slider assembly; 3. Door hinge lock mechanism; 301. Door hinge A; 302. Door hinge B; 303. Door hinge shaft; 304. Deep groove ball bearing; 305. Spacer; 306. Deep groove ball bearing; 307. Thrust ball bearing; 308. Elastic retaining ring for shaft; 4. Control system; 401. Control box; 402. Control switch; 403. Control transformer; 404. Push button switch; 405. Micro switch bracket and 406. Micro switch. Specific implementation method:

[0042] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

[0043] The bamboo carbonizing kiln door linkage locking device of the present invention comprises a kiln body and a kiln door 1 rotatably hinged at the door position of the kiln body A, wherein the kiln door 1 is provided with a kiln door linkage locking mechanism 2. The kiln body A is a semi-enclosed pressure vessel, which can be made of bricks or steel.

[0044] The kiln door interlocking locking mechanism 2 includes a motor 201, a gear 202, a first rack 203, a first interlocking lock fixing block 204, a first tensioning wheel 205, a first upper silver guide rail 206, a first upper silver slider group 207, a second rack 208, a second interlocking lock fixing block 209, a second tensioning wheel 210, a second upper silver guide rail 211, a second upper silver slider group 212, a third rack 213, a connecting plate 214, an interlocking lock fastener 215, a third interlocking lock fixing block group 216, a T-slot 217, a T-slot guide rail 218, a third upper silver guide rail 219 and a third upper silver slider group 220.

[0045] The output end of the motor 201 is connected to the gear 202. When the motor is working, the gear 202 rotates. The gear 202 forms a gear-rack meshing transmission connection with the first rack 203, the second rack 208, and the third rack 213. When the gear 202 rotates, the first rack 203, the second rack 208, and the third rack 213 are driven to slide axially.

[0046] The first upper silver slider group 207 consists of two upper silver sliders and is fixed to the first rack 203 by bolts, and the two upper silver sliders are arranged on the first rack 203 at intervals. The second upper silver slider group 212 consists of two upper silver sliders and is fixed to the second rack 208 by bolts, and the two upper silver sliders are arranged on the second rack 208 at intervals. The third upper silver slider group 220 consists of two upper silver sliders and is fixed to the third rack 213 by bolts, and the two upper silver sliders are arranged on the third rack 213 at intervals. The upper silver slider group is slidably fitted with the upper silver guide rail.

[0047] The first rack 203, the second rack 208 and the third rack 213 do not interfere with each other during the sliding process. Specifically, the axial dimension of the gear 202 is relatively long, and the first rack 203, the second rack 208 and the third rack 213 are respectively engaged and transmitted at different axial positions of the gear 202 (such as Figure 5 As shown, the first rack 203 is parallel to the second rack 208 and is located on opposite sides of the gear 202, and 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 vertically fixedly connected to the interlocking lock member 215 by a connecting plate 214 and bolts, and the two ends of the interlocking lock member 215 are slidably connected to the T-slot guide rail 218 through a T-slot 217.

[0048] The first interlocking lock fixing block 204, the second interlocking lock fixing block 209 and the third interlocking lock fixing block group 216 having grooves (i.e. bolt eyes) are provided on the circumferential side of the kiln door. When the first rack 203, the second rack 208 and the third rack 213 are driven by the gear 202 on the output end of the motor 201 to slide and extend in the direction away from the motor 201, the free ends of the first rack 203, the second rack 208 and the third rack 213 pass through the through groove 110 of the door frame 101 of the kiln door 1 (provided on the three sides of the door frame 101) and are inserted into the grooves (i.e. bolt eyes) of each interlocking lock fixing block, thereby realizing the interlocking locking of the kiln door 1 and the kiln body.

[0049] 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 position of the interlocking lock fastener 215. The interlocking lock fastener 215 is a long strip plate body, and the long strip plate body of the interlocking lock fastener 215 is inserted into the grooves of the three interlocking lock fixing blocks of the third interlocking lock fixing block group 216.

[0050] The first end of the T-slot 217 is slidably connected to the T-slot guide rail 218 , and the second end of the T-slot 217 is slidably connected to the end of the linkage lock member 215 .

[0051] Specifically, the kiln door includes a door frame 101, an outer door 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 bracket 108 and a bolt assembly 109, wherein the door frame 101 includes a rectangular frame and horizontal and vertical grilles arranged in the rectangular frame, the outer door corner 102 is wrapped and welded to the outer periphery of the rectangular frame of the door frame 101, the door bottom plate 103 is a rectangular thin plate and is fixed to the outer door corner 102 by welding, the sealing strip 104 is glued to the four sides 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 outer door corner 102; the motor 201 is installed on the motor bracket 108 and is locked and fixed by the bolt assembly 109.

[0052] The door outer corner 102 is a stainless steel sheet, which is wrapped and welded around the outer periphery of the rectangular frame of the door frame 101 .

[0053] The kiln door 1 is rotatably hinged at the kiln door entrance through a door hinge mechanism 3. The door hinge mechanism 3 includes 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 a shaft elastic retaining ring 308. The door hinge shaft 303 is concentrically paired 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 fastened and fixed by the shaft elastic retaining ring 308.

[0054] A control system 4 is installed on the kiln door 1, and the control system 4 includes a control box 401, a control switch 402, a control transformer 403, a push button switch 404, a micro switch bracket 405 and a micro switch 406. The control box 401 is riveted on the right cover 107, and the control switch 402, the control transformer 403 and the push button switch 404 are installed in the control box 401. The control switch 402, the control transformer 403 and the push button switch 404 are used to control the operation of the motor, which is an existing conventional technology and will not be described here; the micro switch bracket 405 is installed on the third interlock fixing block group 216, and the micro switch 406 is connected to the micro switch bracket 405 by bolts. When the long strip plate of the interlock fastener 215 is inserted into the groove of the third interlock fixing block group 216, the micro switch 406 is triggered.

[0055] The first upper silver guide rail 206 is fixed to the door frame 101 via multiple bolts. The first upper silver slider 207 cooperates with the upper silver guide rail 206 to form a guide. The first rack 203 is fixed to the upper silver slider 207 via bolts, limiting the first rack 203's five degrees of freedom to axial sliding and bearing radial pressure. During operation, the first rack 203 is driven by the gear 202 to move. The tensioning wheel 205 abuts against the side of the first rack 203 to apply a radial load to the first rack 203, ensuring that the radial load from the gear is balanced during operation. The same applies to the second rack.

[0056] The above-mentioned third upper silver guide rail 219 is fixed to the door frame 101 by multiple bolts, the third upper silver slider 220 cooperates with the upper silver guide rail 219 to form a guide, the third rack 213 is fixed to the third upper silver slider 220 by bolts, the third rack 213 is connected to the linkage fastener 215, and the third rack 213 is driven to move by the rotation of the gear 202, and the movement of the third rack 213 drives the linkage lock fastener 215, the T-slot 217 is welded to the linkage fastener 215, the T-slot guide rail 218 is welded to the door frame 101, and the T-slot guide rail 218 cooperates with the T-slot to form a guide, control its five degrees of freedom and withstand radial pressure.

[0057] The working method of the bamboo carbonizing kiln door linkage locking device of the present invention is as follows:

[0058] Open the kiln door: Press the control switch 402, and the motor 201 rotates clockwise when powered. The gear 202 on the output shaft of the motor 201 drives the first rack 203, the second rack 208, and the third rack 213 to move. The free ends of the first rack 203 and the second rack 208 leave the first interlock fixing block 204 and the second interlock fixing block 209, and the interlock fastener 215 leaves the third interlock fixing block group 216 and contacts the micro switch, sending a command to the motor to stop working. At this time, the kiln door releases one of its rotational degrees of freedom, and the kiln door 1 can be manually pulled to open it.

[0059] Close the kiln door: manually push the kiln door 1; press the control switch 402; make the motor 201 rotate counterclockwise when it is energized; the gear 202 drives the first rack 203, the second rack 208, and the third rack 213 to move; the free ends of the first rack 203 and the second rack 208 are inserted into the first interlock fixing block 204 and the second interlock fixing block 209, and the interlock fastener 215 is inserted into the third interlock fixing block group 216 and contacts the micro switch to send a command to the motor to stop working; the kiln door is closed, limiting its six degrees of freedom.

[0060] The present invention can utilize a motor drive mechanism to simultaneously engage multiple door bolts into bolt eyes, thereby achieving locking of multiple door bolts in a short time, saving some time and reducing the error rate, thereby preventing the consequence of individual door bolts not being inserted into the bolt eyes due to negligence.

Claims

1. A bamboo carbonizing kiln door linkage locking device, characterized by: It comprises a kiln body and a kiln door (1) rotatably hinged at the kiln body entrance, wherein the kiln door (1) is provided with a kiln door linkage locking mechanism (2); The kiln door interlocking locking mechanism (2) comprises a motor (201), a gear (202), a first rack (203), a first interlocking lock fixing block (204), a first tensioning wheel (205), a first upper silver guide rail (206), a first upper silver slider group (207), a second rack (208), a second interlocking lock fixing block (209), a second tensioning wheel (210), a second upper silver guide rail (211), a second upper silver slider group (212), a third rack (213), a connecting plate (214), an interlocking lock fastener (215), a third interlocking lock fixing block group (216), a T-slot (217), a T-slot guide rail (218), a third upper silver guide rail (219) and a third upper silver slider group (220); The output end of the motor (201) is connected to the gear (202), and the gear (202) forms a gear-rack assembly connection with the first rack (203), the second rack (208), and the third rack (213). The first upper silver slider group (207) consists of two upper silver sliders and is fixed to the first rack (203) by bolts. The second upper silver slider group (212) consists of two upper silver sliders and is fixed to the second rack (208) by bolts. The third upper silver slider group (220) consists of two upper silver sliders and is fixed to the third rack (213). The rack (213) is fixed by bolt connection, the first upper silver slider group, the second upper silver slider group, and the third upper silver slider group are respectively slidably connected to the first upper silver guide rail, the second upper silver guide rail, and the third upper silver guide rail, and the first rack (203), the second rack (208), and the third rack (213) do not interfere with each other during the sliding process; the third rack (213) and the linkage lock fastener (215) are vertically fixedly connected by a connecting plate (214) and bolts, and both ends of the linkage lock fastener (215) are slidably connected to the T-slot guide rail (218) through a T-slot (217); The first interlocking lock fixing block (204), the second interlocking lock fixing block (209) and the third interlocking lock fixing block group (216) having grooves are provided on the peripheral side of the kiln door; when the first rack (203), the second rack (208) and the third rack (213) are driven by the gear (202) on the output end of the motor (201) to slide and extend in a direction away from the motor (201), the free ends of the first rack (203), the second rack (208) and the third rack (213) pass through the door frame (101) of the kiln door (1) The through grooves are inserted into the grooves of the interlocking lock fixing blocks to realize interlocking locking of the kiln door (1) and the kiln body; the kiln door comprises a door frame (101), an outer door 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 bracket (108) and a bolt assembly (109); the door frame (101) comprises a rectangular frame and horizontal and vertical grilles arranged in the rectangular frame; the outer door corner (102) wraps around the outer periphery of the rectangular frame welded to the door frame (101); The door bottom plate (103) is a rectangular thin plate fixed to the door outer corner (102) by welding, the sealing strip (104) is glued to the four sides of the door bottom plate (103), 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 bracket (108) and is locked and fixed by a bolt assembly (109); the first upper silver guide rail (206) is connected to the door frame (101) by a plurality of bolts The first upper silver slider group (207) cooperates with the first upper silver guide rail (206) to form a guide, and the first rack (203) and the first upper silver slider group (207) are fixed by bolts to limit the five degrees of freedom of the first rack (203) to only axial sliding; when working, the first rack (203) is driven by the gear (202) to move, and the first tensioning wheel (205) abuts against the side of the first rack (203) to add a radial load to the first rack (203), so that the first rack (203) is subjected to a force balance when it bears the radial load brought by the gear during operation;The third upper silver guide rail (219) is fixed to the door frame (101) by a plurality of bolts, the third upper silver slider group (220) cooperates with the third upper silver guide rail (219) to form a guide, the third rack (213) is fixed to the third upper silver slider group (220) by bolts, the third rack (213) is connected to the linkage fastener (215), the third rack (213) is driven to move by the rotation of the gear (202), and the movement of the third rack (213) drives the linkage lock fastener (215), the T-slot (217) is welded to the linkage fastener (215), the T-slot guide rail (218) is welded to the door frame (101), and the T-slot guide rail (218) cooperates with the T-slot to form a guide, controlling its five degrees of freedom.

2. The bamboo carbonization kiln door linkage locking device according to claim 1, characterized in that: 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 position of the interlocking lock fastener (215). The interlocking lock fastener (215) is a long strip plate body. The long strip plate body of the interlocking lock fastener (215) is inserted into the grooves of the three interlocking lock fixing blocks of the third interlocking lock fixing block group (216).

3. The bamboo carbonization kiln door linkage locking device according to claim 2, characterized in that: The first end of the T-slot (217) is slidably connected to the T-slot guide rail (218), and the second end of the T-slot (217) is slidably connected to the end of the linkage lock member (215).

4. The bamboo carbonizing kiln door linkage locking device according to claim 1, 2 or 3, characterized in that: The kiln door (1) is rotatably hinged at the kiln door opening position via a door hinge lock mechanism (3). The door hinge 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 a shaft elastic retaining ring (308). The door hinge shaft (303) is concentrically mounted 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 fastened and fixed by the shaft elastic retaining ring (308).

5. The bamboo carbonizing kiln door linkage locking device according to claim 1, 2 or 3, characterized in that: A control system (4) is installed on the kiln door (1), and the control system (4) includes a control box (401), a control switch (402), a control transformer (403), a push button switch (404), a micro switch bracket (405) and a micro switch (406). The control box (401) is riveted to the right cover plate (107), the control switch (402), the control transformer (403) and the push button switch (404) are installed in the control box (401), the micro switch bracket (405) is installed on the third interlocking lock fixing block group (216), and the micro switch (406) is connected to the micro switch bracket (405) by bolts. When the long strip plate of the interlocking lock fastener (215) is inserted into the groove of the third interlocking lock fixing block group (216), the micro switch (406) is triggered.

6. A method for operating the linkage locking device for a bamboo carbonizing kiln door according to any one of claims 1 to 5, characterized in that: Opening the kiln door: Press the control switch (402), the motor (201) rotates clockwise when powered; the gear 202 on the output shaft of the motor (201) drives the first rack (203), the second rack (208), and the third rack (213) to move; the free ends of the first rack (203) and the second rack (208) leave the first interlocking lock fixing block (204) and the second interlocking lock fixing block (209), and the interlocking lock fastener (215) leaves the third interlocking lock fixing block group (216) and contacts the micro switch to send a command to the motor to stop working, and manually pull the kiln door (1) to open the kiln door.

7. The working method of the bamboo carbonizing kiln door linkage locking device according to claim 6, characterized in that: Closing the kiln door: manually push the kiln door (1); press the control switch (402); make the motor (201) rotate counterclockwise when energized; the gear (202) drives the first rack (203), the second rack (208), and the third rack (213) to move; the free ends of the first rack (203) and the second rack (208) are inserted into the first interlocking lock fixing block (204) and the second interlocking lock fixing block (209); the interlocking lock fastener (215) is inserted into the third interlocking lock fixing block group (216) and contacts the micro switch to send a command to the motor to stop working; the kiln door is closed.

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