Elevator door head

Abstract

The utility model discloses an elevator door head belonging to the field of elevators, which comprises a bottom plate and a hanging plate linked with the bottom plate, the bottom plate is provided with a guide rail, the hanging plate is provided with a door change gear and an eccentric gear, the hanging plate is provided with an upper mousing hook, two ends of the guide rail are hinged with steel wire rope wheels, the hanging plate is provided with a steel wire rope support, and the steel wire rope support and the hanging plate are integrally formed. The steel wire rope support can be arranged to be perpendicular to the hanging plate through stamping or bending, the end of the steel wire rope is arranged in the penetrating hole in a penetrating mode through the adjusting rod, and the steel wire rope is fixed through the locking sleeve and the locking piece. Then the steel wire rope is wound around the steel wire rope wheels on the two sides of the bottom plate and then penetrates through the clamping grooves in the side portions of the clamping holes of the steel wire rope supports to be clamped into the clamping holes to achieve stable connection of the steel wire rope, the clamping blocks at the ends are matched with the clamping holes and are larger than the clamping grooves, and the steel wire rope can be stably fixed through the clamping blocks; and the tightening degree of the steel wire rope can be adjusted by adjusting the relative position of the locking piece and the adjusting rod, so that the stability of the steel wire rope in the elevator door head is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator field, concretely relates to an elevator door head. BACKGROUND

[0002] With the development of science and technology and social economy, high-rise building has become the symbol of modern city. Elevator as vertical transport tool, is applied in middle high-rise office building, office building, hotel and residential building, service and production department such as hospital, shopping mall, warehouse, production workshop etc., bears a large number of people flow and material flow's delivery, its function is important in building.

[0003] The utility model discloses a kind of hanging plate assemblies for elevator, including hanging plate body, pulley and limit wheel, the back upper portion of the hanging plate body is respectively provided with one pulley on both sides, the back lower portion of the hanging plate body is provided with one limit wheel, two pulleys and one limit wheel are triangularly distributed, the upper anti-unhooking and lower anti-unhooking of stamping bending forming are provided on the hanging plate body, the connecting plate for connecting steel wire rope of stamping bending forming is provided on the hanging plate body.

[0004] However, the above hanging plate and bottom plate have the following defects:

[0005] First, the connecting plate of the hanging plate only has one connecting hole, the two ends of the steel wire rope need to be fixed on two hanging plates respectively, and the steel wire rope is annular to link the hanging plate and the bottom plate, the stability of the steel wire rope is poor, and there is a large risk of shaking and falling off;

[0006] Second, the upper anti-unhooking and lower anti-unhooking of the hanging plate are both stamped, the guide rail anti-unhooking angle of the anti-unhooking and the bottom plate cannot be adjusted, and the bottom of the hanging plate is only provided with one limit wheel, the limit wheel abuts against the lower guide rail surface of the bottom plate, and the limit wheel can only limit the middle part of the hanging plate. When the limit wheel fails, a single limit wheel cannot accurately limit the hanging plate.

[0007] Therefore, it is necessary to improve the above defects. UTILITY MODEL CONTENTS

[0008] The utility model discloses a kind of steel wire rope connection stability, bottom plate and hanging plate anti-unhooking performance high, hanging plate thickness thin and structural strength high elevator door head, to solve the above problems existing in prior art.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an elevator door head, including a base plate and a hanging plate linked to the base plate. The base plate is provided with an integrally formed guide rail. The hanging plate is provided with door hanging wheels and eccentric wheels linked to both ends of the guide rail. The hanging plate is provided with an integrally stamped upper anti-disengagement hook. Steel wire rope wheels are hinged to both ends of the guide rail. The hanging plate is provided with an integrally stamped steel wire rope bracket. The steel wire rope bracket has a through hole and a snap-fit ​​hole. One end of the steel wire rope is fitted with an adjusting rod linked to the through hole, and the other end is fitted with a snap-fit ​​rod linked to the snap-fit ​​hole. A locking sleeve and a locking element are threadedly connected to the adjusting rod. The snap-fit ​​hole has a snap-fit ​​groove. The end of the snap-fit ​​rod is provided with a snap-fit ​​block that abuts against the steel wire rope bracket.

[0010] By adopting the above technical solution: the door head opens in the middle by linking the door rollers and eccentric wheels on the hanging plate with the guide rails on the base plate, and the hanging plate is protected against detachment by the upper anti-detachment hook. The wire rope bracket is integrally formed with the hanging plate, and the wire rope bracket can be set perpendicular to the hanging plate by stamping or bending. The end of the wire rope is inserted into the insertion hole through the adjusting rod, and the wire rope is fixed by the locking sleeve and locking device. Then, the wire rope is wrapped around the wire rope wheels on both sides of the base plate and then passed through the locking groove on the side of the locking hole of the wire rope bracket to lock into the locking hole to achieve a stable connection of the wire rope. The locking block at the end fits with the locking hole and is larger than the locking groove. The locking block can stably fix the wire rope, and the tension of the wire rope can be adjusted by adjusting the relative position of the locking device and the adjusting rod, thus improving the stability of the wire rope of the door head.

[0011] The elevator door head can be further configured as follows: the mounting plate is also provided with an integrally stamped stabilizing bracket, a stabilizing bolt is inserted in the middle of the stabilizing bracket, a stabilizing hole for accommodating the wire rope is provided through the outer periphery of the stabilizing bolt, and a stabilizing member is hinged to the stabilizing bolt.

[0012] By adopting the above technical solution: when installing the wire rope, the rope is passed through the stabilizing hole in the middle of the stabilizing bolt and the stabilizing bolt is installed on the stabilizing bracket. During the opening and closing of the elevator door, the wire rope can slide on the same horizontal plane without shaking. This reduces the influence of the wire rope on other parts and improves the stability of the elevator during operation. At the same time, the stabilizing bracket and the hanging plate are integrally formed, and the structural strength of the stabilizing bracket and the hanging plate is higher and more stable.

[0013] The elevator door head can be further configured as follows: a number of anti-slip grooves are provided on the hanging plate, and a convex fixing hole is integrally punched between the hanging plate and the anti-slip groove. An anti-slip plate is hinged to the convex fixing hole. Lower anti-slip hooks perpendicular to the anti-slip plate are provided on both sides of the anti-slip plate. The lower anti-slip hooks are inserted into the anti-slip groove. The anti-slip plate is fixedly connected to the convex fixing hole by hexagonal bolts.

[0014] By adopting the above technical solution, multiple anti-slip grooves can hinge multiple anti-slip plates, which are linked with multiple one-piece stamped upper anti-slip hooks on the hanging plate, effectively improving the linkage capability between the hanging plate and the guide rail. In addition, when installing the hanging plate, the anti-slip plate is first placed at the bottom of the anti-slip groove, and then moved upward until the lower anti-slip hook engages with the guide rail, which simplifies the anti-slip setting method between the hanging plate and the base plate and avoids jamming or scratching of the base plate. At the same time, the embossed fixing holes reduce the thickness of the hanging plate and save connecting parts between the anti-slip plate and the hanging plate, ensuring the strength and stability of the hanging plate structure while reducing the overall thickness of the hanging plate.

[0015] The elevator door head can be further configured such that: a counterweight rope wheel is provided on the side of the hanging plate away from the door hanging wheel, the counterweight rope wheel includes a rope wheel bolt, a rope wheel bearing and a rope loop, and a rope groove is provided in the middle of the rope loop for accommodating the counterweight rope.

[0016] By adopting the above technical solution, the counterweight rope pulley can effectively guide the direction of the counterweight rope, ensuring that the counterweight rope maintains stable operation during the opening and closing of the elevator door. Furthermore, the counterweight rope is accommodated by the rope groove in the middle of the rope loop. Since the rope groove is concave, the counterweight rope is always located at the bottom of the rope groove, effectively reducing the swaying of the counterweight rope and improving the balance and stability of the elevator door system.

[0017] The aforementioned elevator door head can be further configured as follows: the edge of the mounting plate is integrally bent with an installation bottom edge, the mounting plate has several embossed bumps at the bend, the connection between the installation bottom edge and the mounting plate has several positioning holes, the installation bottom edge is punched and bent to form an installation plate, the installation plate has installation holes, the front part of the installation plate is connected to the door panel installation bottom edge, the two sides of the installation plate form punched grooves between the door panel installation bottom edge, and the rear of the installation plate has an extension section extending out of the rear of the door panel installation bottom edge.

[0018] By adopting the above technical solution: the mounting plate has embossed bumps at the bending joints of each bracket and the mounting bottom edge, which improves the bending resistance of the mounting bottom edge without changing the thickness of the mounting plate. At the same time, the mounting bottom edge is formed into a mounting plate by punching and bending. The positioning holes on the mounting plate can realize the quick positioning and fixing of the mounting plate and the door panel, simplifying the installation process of the mounting plate. In addition, the punching groove allows for flexible adjustment between the mounting plate and the door panel, while the extension section enhances the connection strength between the door head and the door panel, ensuring that the elevator door will not loosen or shift during operation.

[0019] The elevator door head can be further configured as follows: the guide rail is bent to form an arc-shaped upper guide rail surface and an arc-shaped lower guide rail surface. The arc-shaped upper guide rail surface and the arc-shaped lower guide rail surface form an arc-shaped upper guide groove that is linked with the upper anti-disengagement and an arc-shaped lower guide groove that is linked with the lower anti-disengagement between them and the base plate, respectively. The door hanger includes a hanger bolt, a hanger bearing and a hanger sleeve. The hanger sleeve is provided with a hanger groove that is linked with the upper guide rail surface. The eccentric wheel includes an eccentric bolt, an eccentric nut, a limiting member and an eccentric sleeve. A limiting groove is opened at the end of the eccentric bolt. The eccentric sleeve is fitted onto the eccentric bolt. The limiting member is engaged in the limiting groove to limit the eccentric sleeve. The eccentric sleeve is provided with an eccentric groove that is linked with the lower guide rail surface.

[0020] By adopting the above technical solution: the guide rail is bent to form an arc-shaped upper guide rail surface and a lower guide rail surface. The door hanger wheel is linked with the upper guide rail surface, and the eccentric wheel is linked with the lower guide rail surface, realizing the anti-detachment connection between the hanging plate and the base plate. At the same time, the upper and lower guide rail surfaces and the base plate form an arc-shaped guide groove. The upper anti-detachment hook and the lower anti-detachment hook are located in the upper guide groove and the lower guide groove, respectively, which can effectively prevent the hanging plate and the base plate from detaching, improve the stability of the elevator door head when opening and closing, and effectively reduce the friction and wear of the door hanger wheel and the eccentric wheel during operation, while ensuring the smoothness and stability of the door head when opening in the middle.

[0021] The aforementioned elevator door can be further configured as follows: a horizontal fireproof edge with a downward-folded flange is bent at the upper part of the base plate, and a positioning edge is vertically provided at the edge of the horizontal fireproof edge.

[0022] By adopting the above technical solution, the horizontal fireproof edge at the top of the base plate, with its downward-curving edge, effectively prevents flames from spreading into the elevator interior, improving elevator safety. The positioning edge ensures a tight fit between the door frame and the wall, preventing dust and debris from entering, while also enhancing the structural stability of the door frame.

[0023] The elevator door head can be further configured as follows: a locking component is hinged in the middle of the guide rail. The locking component includes a fixing plate and a locking plate. The locking plate has a locking groove and an inclined plate at the edge of the locking plate for the locking tongue to slide in.

[0024] By adopting the above technical solution: the lock hook achieves the closure of the door lock structure by engaging the lock tongue into the locking groove on the locking element, while the inclined plate on the locking plate improves the smoothness of the lock hook sliding into the locking groove, preventing the lock tongue from colliding with the outer periphery of the locking plate and causing the lock hook and locking element to malfunction.

[0025] The beneficial effects of this utility model are as follows:

[0026] First, through the through holes and snap-fit ​​holes of the wire rope bracket, the wire rope can be stably connected via the adjusting rod and snap-fit ​​rod. The locking sleeve and locking parts on the adjusting rod can adjust the tension of the wire rope, ensuring that the wire rope remains stable during operation. At the same time, the cooperation between the snap-fit ​​block and the snap-fit ​​groove further enhances the fixing effect of the wire rope, which not only improves the connection reliability of the wire rope, but also facilitates installation and maintenance. Furthermore, by passing the wire rope through the stabilizing bolt on the stabilizing bracket, the wire rope can always slide on the same horizontal plane, maintaining the stability of the elevator door head wire rope operation.

[0027] Secondly, the mounting plate adopts a one-piece stamping process, which integrates multiple functions such as a stable support, anti-slip groove, embossed fixing holes, and anti-detachment plate, while reducing the thickness of the mounting plate. This reduces the amount of production material while increasing the strength and stability of the mounting plate structure. The embossed bumps at the stamping and bending points of the mounting plate can improve the bending resistance without increasing the material, and make the mounting plate more compact and stable while meeting functional requirements.

[0028] Third, the base plate is bent to form a horizontal fireproof edge and a positioning edge, enhancing the fire resistance of the elevator door head and the accuracy of installation positioning. The guide rail is bent to form an arc-shaped guide groove, which is linked with the upper and lower anti-disengagement hooks on the mounting plate, reducing friction between the door rollers and eccentric wheels during operation and improving the connection stability between the mounting plate and the base plate. In addition, the arc-shaped guide groove ensures the smoothness and reliability of the door head when opening in the middle, further improving the overall stability of the elevator door system.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the elevator door head of this utility model;

[0031] Figure 2 This is a schematic cross-sectional view of the elevator door head of this utility model;

[0032] Figure 3 This is a schematic diagram of the adjusting rod and locking rod structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the disassembled base plate of this utility model;

[0034] Figure 5 This is a schematic diagram of the mounting plate assembly structure of this utility model;

[0035] Figure 6 This is a schematic diagram showing the disassembly of the hanging plate of this utility model;

[0036] Figure 7 This is a disassembled schematic diagram of the door hanger of this utility model;

[0037] Figure 8 This is a schematic diagram showing the disassembled eccentric wheel of this utility model;

[0038] Figure 9 This is a schematic diagram of the structure of the counterweight rope wheel of this utility model;

[0039] Figure 10 This is a schematic diagram of the locking component of this utility model;

[0040] Label annotations: Base plate 1, Guide rail 11, Upper guide rail surface 111, Lower guide rail surface 112, Upper guide groove 113, Lower guide groove 114, Wire rope wheel 12, Fireproof edge 13, Positioning edge 14, Hanging plate 2, Door hanging wheel 21, Hanging wheel bolt 211, Hanging wheel shaft 212, Hanging wheel sleeve 213, Hanging wheel groove 214, Eccentric wheel 22, Eccentric bolt 221, Eccentric nut 222, Limiting component 223, Eccentric sleeve 224, Limiting groove 225, Eccentric groove 226, Upper anti-disengagement hook 23, Wire rope bracket 24, Through hole 241, Snap-fit ​​hole 242, Snap-fit ​​groove 243, Stabilizing bracket 25, Stabilizing bolt 251. Stabilizing hole; 252. Stabilizing component; 253. Anti-slip groove; 26. Embossed fixing hole; 261. Anti-slip plate; 27. Lower anti-slip hook; 271. Hex bolt; 272. Counterweight rope wheel; 28. Rope wheel bolt; 281. Rope wheel bearing; 282. Rope loop; 283. Rope groove; 284. Mounting bottom edge; 29. ​​Positioning hole; 291. Mounting plate; 292. Mounting hole; 293. Punching groove; 294. Wire rope; 3. Adjusting rod; 31. Locking sleeve; 311. Locking component; 312. Connecting rod; 32. Connecting block; 321. Embossed bag; 4. Locking component; 5. Fixing plate; 51. Locking plate; 52. Locking groove; 53. Inclined plate; 54. Detailed Implementation

[0041] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0042] like Figures 1 to 10An elevator door head shown includes a base plate 1 and a hanging plate 2 linked to the base plate 1. The base plate 1 is provided with an integrally formed guide rail 11. The hanging plate 2 is provided with door hanger wheels 21 and eccentric wheels 22 linked to both ends of the guide rail 11. The hanging plate 2 is provided with an integrally stamped upper anti-disengagement hook 23. The guide rail 11 is hinged to both ends with wire rope wheels 12. The hanging plate 2 is provided with an integrally stamped wire rope bracket 24. The wire rope bracket 24 has a through hole 241 and a snap-fit ​​hole 242. One end of the wire rope 3 is fitted with an adjusting rod 31 linked to the through hole 241, and the other end is fitted with a snap-fit ​​rod 32 linked to the snap-fit ​​hole 242. The adjusting rod 31 is threaded with a locking sleeve 311 and a locking element 312. The snap-fit ​​hole 242 has a snap-fit ​​groove 243. The end of the snap-fit ​​rod 32 is provided with a snap-fit ​​block 321 that abuts against the wire rope bracket 24. The elevator door opens in the middle via the linkage between the door rollers 21 and eccentric wheels 22 on the hanging plate 2 and the guide rails 11 on the base plate 1. The hanging plate 2 is secured against detachment via the upper anti-detachment hook 23. The wire rope bracket 24 is integrally formed with the hanging plate 2 and can be set perpendicular to the hanging plate 2 by stamping or bending. The end of the wire rope 3 passes through the through hole 241 via the adjusting rod 31 and is fixed by the locking sleeve 311 and locking piece 312. Then, the wire rope... The wire rope 3 is stably connected to the steel wire rope 3 by passing through the steel wire rope bracket 24's locking hole 242 side locking groove 243 on both sides of the base plate 1 and then through the locking hole 242 side locking groove 243. The locking block 321 at the end cooperates with the locking hole 242 and is larger than the locking groove 243. The locking block 321 can stably fix the steel wire rope 3 and can adjust the tension of the steel wire rope 3 by adjusting the relative position of the locking part 312 and the adjusting rod 31, thereby improving the stability of the door head steel wire rope 3.

[0043] The mounting plate 2 also features an integrally stamped stabilizing bracket 25. A stabilizing bolt 251 passes through the center of the stabilizing bracket 25, and a stabilizing hole 252 for accommodating the wire rope 3 is provided through the outer circumference of the stabilizing bolt 251. A stabilizing member 253 is hinged to the stabilizing bolt 251. During the installation of the wire rope 3, the rope is passed through the stabilizing hole 252 in the center of the stabilizing bolt 251, and the stabilizing bolt 251 is threaded onto the stabilizing bracket 25. During the opening and closing of the elevator door, the wire rope 3 can slide on the same horizontal plane without swaying, reducing the influence of the wire rope 3 on other parts and improving the stability of the elevator during operation. At the same time, the stabilizing bracket 25 and the mounting plate 2 are integrally formed, resulting in higher structural strength and stability for both.

[0044] The hanging plate 2 has several spaced anti-slip grooves 26. The hanging plate 2 and the anti-slip grooves 26 are integrally stamped with embossed fixing holes 261. The embossed fixing holes 261 are hinged to the anti-slip plate 27. The anti-slip plate 27 has lower anti-slip hooks 271 perpendicular to the anti-slip plate 27 on both sides. The lower anti-slip hooks 271 are inserted into the anti-slip grooves 26. The anti-slip plate 27 is fixedly connected to the embossed fixing holes 261 by hexagonal bolts 272. Multiple anti-slip grooves 26 can hinge multiple anti-slip plates 27, which are linked with multiple one-piece stamped upper anti-slip hooks 23 on the hanging plate 2, effectively improving the linkage capability between the hanging plate 2 and the guide rail 11. In addition, when installing the hanging plate 2, the anti-slip plate 27 is first placed at the bottom of the anti-slip groove 26, and then moved upward until the lower anti-slip hook 271 engages with the guide rail 11, which simplifies the anti-slip setting method between the hanging plate 2 and the base plate 1 and avoids jamming or scratching of the base plate 1. At the same time, the embossed fixing hole 261 reduces the thickness of the hanging plate 2, saving the connecting parts of the anti-slip plate 27 and the hanging plate 2, and ensuring the structural strength and stability of the hanging plate 2 while reducing the overall thickness of the hanging plate 2.

[0045] A counterweight rope pulley 28 is provided on the side of the hanging plate 2 away from the door hanger 21. The counterweight rope pulley 28 includes a rope pulley bolt 281, a rope pulley bearing 282, and a rope loop 283. The rope loop 283 has a rope groove 284 in the middle for accommodating the counterweight rope. The counterweight rope pulley 28 can effectively guide the direction of the counterweight rope, ensuring that the counterweight rope maintains stable operation during the opening and closing of the elevator door. The counterweight rope is accommodated by the rope groove 284 in the middle of the rope loop 283. Since the rope groove 284 is concave, the counterweight rope is always located at the bottom of the rope groove 284, which effectively reduces the swaying of the counterweight rope and improves the balance and stability of the elevator door system.

[0046] The mounting plate 2 has an integrally bent mounting bottom edge 29 at its edge. The mounting plate 2 has several embossed bumps 4 at the bend. The mounting bottom edge 29 and the mounting plate 2 are connected by several positioning holes 291. The mounting bottom edge 29 is punched and bent to form a mounting plate 292. The mounting plate 292 is provided with mounting holes 293. The front part of the mounting plate 292 is connected to the mounting bottom edge 29 of the door panel. The two sides of the mounting plate 292 are formed with punched grooves 294 between them and the mounting bottom edge 29 of the door panel. The rear of the mounting plate 292 has an extension section that extends out of the rear of the mounting bottom edge 29 of the door panel. The mounting plate 2 has raised bumps 4 at the bending joints of the brackets and the mounting bottom edge 29. This improves the bending resistance of the mounting bottom edge 29 without changing the thickness of the mounting plate 2. At the same time, the mounting bottom edge 29 is formed into a mounting plate 292 by punching and bending. The positioning holes 291 on the mounting plate 292 can realize the quick positioning and fixing of the mounting plate 2 and the door panel, simplifying the installation process of the mounting plate 2. In addition, the punching groove 294 allows the mounting plate 292 and the door panel to be flexibly adjusted, while the extension section enhances the connection strength between the door head and the door panel, ensuring that the elevator door will not loosen or shift during operation.

[0047] The guide rail 11 is bent to form an arc-shaped upper guide rail surface 111 and an arc-shaped lower guide rail surface 112. The arc-shaped upper guide rail surface 111 and the arc-shaped lower guide rail surface 112 form an arc-shaped upper guide groove 113 that is linked to the upper anti-disengagement hook 23 and an arc-shaped lower guide groove 114 that is linked to the lower anti-disengagement hook 271, respectively, with the base plate 1. The door hanger 21 includes a hanger bolt 211, a hanger shaft 212 bearing and a hanger sleeve 213. The hanger sleeve 213 is provided with The eccentric wheel 22 has a gear groove 214 that is linked to the upper guide rail surface 111. The eccentric wheel 22 includes an eccentric bolt 221, an eccentric nut 222, a limiting member 223, and an eccentric sleeve 224. The end of the eccentric bolt 221 has a limiting groove 225. The eccentric sleeve 224 is sleeved on the eccentric bolt 221. The limiting member 223 is engaged in the limiting groove 225 to limit the eccentric sleeve 224. The eccentric sleeve 224 has an eccentric groove 226 that is linked to the lower guide rail surface 112. The guide rail 11 is bent to form an arc-shaped upper guide rail surface 111 and a lower guide rail surface 112. The door hanger 21 is linked with the upper guide rail surface 111, and the eccentric wheel 22 is linked with the lower guide rail surface 112 to achieve anti-detachment connection between the hanging plate 2 and the base plate 1. At the same time, the upper guide rail surface 111 and the lower guide rail surface 112 form an arc-shaped guide groove with the base plate 1. The upper anti-detachment hook 23 and the lower anti-detachment hook 271 are located in the upper guide groove 113 and the lower guide groove 114, respectively, which can effectively prevent the hanging plate 2 and the base plate 1 from detaching, improve the stability of the elevator door head when opening and closing, and effectively reduce the friction and wear of the door hanger 21 and the eccentric wheel 22 during operation, while ensuring the smoothness and stability of the door head when opening in the middle.

[0048] The upper part of the base plate 1 has a horizontal fireproof edge 13 with a downward-curved flange, and a positioning edge 14 is vertically provided at the edge of the horizontal fireproof edge 13. The horizontal fireproof edge 13 on the upper part of the base plate 1 can effectively prevent the spread of flames into the elevator interior by turning downward, thereby improving the safety of the elevator. The positioning edge 14 ensures a tight fit between the door and the wall, preventing dust and debris from entering, while also enhancing the structural stability of the door.

[0049] A locking element 5 is hinged to the middle of the guide rail 11. The locking element 5 includes a fixing plate 51 and a locking plate 52. The locking plate 52 has a locking groove 53, and an inclined plate 54 for the latch to slide in is provided at the edge of the locking plate 52. The elevator lock hook closes the door lock structure by engaging the latch in the locking groove 53 on the locking element 5. The inclined plate 54 on the locking plate 52 improves the smoothness of the lock hook sliding into the locking groove 53 and prevents the latch from colliding with the outer periphery of the locking plate 52, which would cause the lock hook and locking element 5 to malfunction.

Claims

1. An elevator door head comprising a bottom plate and a hanging plate linked with the bottom plate, the bottom plate is provided with an integrally formed guide rail, the hanging plate is provided with a door hanging wheel and an eccentric wheel linked with both ends of the guide rail, and the hanging plate is provided with an integrally stamped upper anti-unhooking device, characterized in that: The guide rail is hinged with a wire rope wheel at both ends, the hanging plate is provided with an integral stamping wire rope support, the wire rope support is provided with a penetrating hole and a clamping hole, one end of the wire rope is sleeved with an adjusting rod linked with the penetrating hole, and the other end of the wire rope is sleeved with a clamping rod linked with the clamping hole, the adjusting rod is threadedly connected with a locking sleeve and a locking piece, the clamping hole is provided with a clamping groove, and the clamping rod is provided with a clamping block abutting against the wire rope support.

2. The elevator headpiece of claim 1, wherein: The hanging plate is also provided with an integral stamping stable support, the stable support is penetrated with a stable bolt in the middle, the outer circumferential surface of the stable bolt is provided with a stable hole for accommodating the wire rope, and the stable bolt is hinged with a stable piece.

3. The elevator headpiece of claim 1, wherein: A plurality of interval arranged anti-slip grooves are formed on the hanging plate, the integral stamping protrusion fixing holes are arranged between the hanging plate and the anti-slip grooves, the protrusion fixing holes are hinged with anti-slip plates, the both sides of the anti-slip plates are provided with downward anti-slip hooks perpendicular to the anti-slip plates, the downward anti-slip hooks are penetrated in the anti-slip grooves, and the anti-slip plates are fixedly connected with the protrusion fixing holes through hexagonal bolts.

4. The elevator head as defined in claim 3, characterized in that: The hanging plate is provided with a weight rope wheel away from the door hanging wheel, the weight rope wheel comprises a rope wheel bolt, a rope wheel bearing and a rope ring, and the rope ring is provided with a rope groove in the middle for accommodating a weight rope.

5. The elevator headpiece of any of claims 1 to 4, wherein: The edge of the hanging plate is integrally bent with a mounting bottom edge, the mounting bottom edge is provided with a plurality of protrusion bags and positioning holes at the connection position with the hanging plate, the mounting bottom edge is formed into a mounting plate through blanking and bending, the mounting plate is provided with mounting holes, the front part of the mounting plate is connected with the door plate mounting bottom edge, the both sides of the mounting plate form blanking grooves with the door plate mounting bottom edge, and the tail part of the mounting plate is provided with an extension section extending beyond the rear part of the door plate mounting bottom edge.

6. The elevator headpiece of claim 5, wherein: The guide rail is bent to form a circular arc upper guide rail surface and a circular arc lower guide rail surface, the circular arc upper guide rail surface and the circular arc lower guide rail surface form a circular arc upper guide groove and a circular arc lower guide groove respectively linked with the upper anti-slip hook and the lower anti-slip hook respectively with the bottom plate, the door hanging wheel comprises a hanging wheel bolt, a hanging wheel bearing and a hanging wheel sleeve, the hanging wheel sleeve is provided with a hanging wheel groove linked with the upper guide rail surface, the eccentric wheel comprises an eccentric bolt, an eccentric nut, a limiting piece and an eccentric sleeve, the eccentric bolt is provided with a limiting groove at the end, the eccentric sleeve is sleeved on the eccentric bolt, the limiting piece is clamped in the limiting groove to limit the eccentric sleeve, and the eccentric sleeve is provided with an eccentric groove linked with the lower guide rail surface.

7. The elevator head as defined in claim 6, characterized in that: The bottom plate is provided with a horizontal fireproof edge bent downward at the upper part, and a positioning edge is vertically arranged at the edge of the horizontal fireproof edge.

8. The elevator head as defined in claim 7, characterized in that: The middle part of the guide rail is hinged with a locking piece, the locking piece comprises a fixed plate and a locking plate, the locking plate and the fixed plate are provided with a locking groove linked with an elevator lock hook, and the edge of the locking plate is provided with an inclined plate for sliding in a lock tongue.

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