Rope fixing structure and elevator

Abstract

The invention provides a rope fixing structure and an elevator. The rope fixing structure comprises a circular-tube-shaped beam body, a fixing device, a rope head rod and a rope fixing and guiding device. The rope is wrapped along the surface of the circular-tube-shaped beam body from one side of the circular-tube-shaped beam body and then wrapped along the surface of the rope head rod from one side of the rope head rod. The rope fixing and guiding device is located between the fixing device and the circular-tube-shaped beam body, and the rope wound around the rope head rod penetrates through the position between the rope fixing and guiding device and the fixing device. And the rope penetrating through the rope fixing and guiding device and the fixing device is fixed on the circular tube-shaped beam body by the fixing device. The circular-tube-shaped structure is adopted to replace a channel steel structure to serve as the car roof cross beam, and the installation process is simplified. The car roof cross beam is designed to be of a circular tube structure, the rope is wound on the circular tube beam body, by means of the principle of the Euler formula, the rope fixing structure is simplified, the height of the top space of an elevator is reduced, and the requirement of the elevator for the height of the top floor is lowered.

Description

Technical Field

[0001] The present invention relates to the field of elevators, and in particular to a cable fixing structure and an elevator. Background Art

[0002] An elevator is a transportation device that serves several specific floors in a building. In order to ensure the normal operation and work of the elevator, existing elevators usually use rope head assemblies to fix the wire rope or steel belt to the crossbeam on the top of the car, such as Fig.16 and Fig.17 As shown. In this type of rope head assembly, the rope head device is located inside the crossbeam. Due to the obstruction of the crossbeam and the rope head plate, when the operator needs to install, inspect, and repair the rope head assembly, he must put his head under the crossbeam and then look up from the bottom to perform the required operation. Therefore, the existing technology has the defects of being difficult to observe and operate, and poor installation and adjustment convenience. Summary of the invention

[0003] In view of the defects in the prior art, an object of the present invention is to provide a cable fixing structure and an elevator.

[0004] A cable fixing structure provided according to the present invention comprises a round tubular beam body, a fixing device, a rope head rod and a cable fixing guide device;

[0005] The tubular beam is a roof beam of an elevator car, and the cable is wrapped along the surface of the tubular beam from one side of the tubular beam, and then wrapped along the surface of the rope head rod from one side of the rope head rod;

[0006] The cable fixing guide device is located between the fixing device and the tubular beam body, and the cable bypassing the rope head rod passes between the cable fixing guide device and the fixing device;

[0007] The cable passing through the cable fixing guide device and the fixing device is fixed on the circular tubular beam body by the fixing device;

[0008] The fixing device, the cable fixing guide device and the rope head rod are all located above or on the side of the circular tubular beam body;

[0009] The ropes include steel belts or steel wire ropes.

[0010] Preferably, the fixing device is a rope end pressure plate; the rope end pressure plate is a C-shaped plate structure; the fixing device and the cable fixing guide device are connected to the tubular beam body through screws, the head of the screw is located above or on the side of the tubular beam body, and the tail of the screw is located inside the tubular beam body.

[0011] Preferably, there are multiple circular tubular beams, and the cable is passed around multiple circular tubular beams in succession, and then passed around the rope head rod, and finally fixed on the last circular tubular beam.

[0012] Preferably, an anti-rotation structure is also provided on the circular tubular beam body.

[0013] Preferably, the anti-rotation structure is a raised structure;

[0014] A groove structure is arranged in the car roof, the shape of the protruding structure matches the shape of the groove structure, and the protruding structure is inserted into the groove structure to realize the anti-rotation of the circular tubular beam body.

[0015] Preferably, it also includes a cable entry guide device;

[0016] The cable entry guide device is located on the side of the circular tubular beam body, and the cable entry guide device is connected to the circular tubular beam body through a screw, the head of the screw is located on the side of the circular tubular beam body, and the tail of the screw is located inside the circular tubular beam body.

[0017] A cable entry guide device is arranged on the circular tubular beam body at the cable entry side.

[0018] Preferably, it also includes an inspection device; the inspection device is a C-shaped plate structure; the inspection device is installed on the cable entry guide device.

[0019] Preferably, the structures of the cable fixing guide device and the cable insertion guide device are any of the following structures:

[0020] It is a single plate with a groove matching the shape of the rope;

[0021] Alternatively, the guide device is composed of two plate-like parts, the inner plate is thicker than the cable size and has a notch for limiting the left and right positions on the beam, and the outer plate is pressed onto the inner plate and then fixed.

[0022] An elevator provided by the present invention adopts the cable fixing structure.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The car top cross beam of the present invention adopts a round tubular structure (i.e. a tubular cross beam), which is easy to process.

[0025] 2. The present invention arranges the rope head rod, the rope fixing guide device, the fixing device, and the inspection device of the cable above or in front of the tubular crossbeam. The operator no longer needs to put his head under the crossbeam to operate, but can operate directly from top to bottom or from the side, which is very convenient for installation, adjustment, and inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the top view structure of the elevator in the present invention;

[0027] Figure 2 It is a schematic diagram of a partial structure of a side view of the elevator in the present invention;

[0028] Figure 3 It is a schematic diagram of the top view structure of the frame column in the present invention;

[0029] Figure 4 It is a schematic diagram of the top view structure of the car column in the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the frame column and the car column matching in the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the counterweight structure and the frame column in the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of the cable fixing structure in the present invention:

[0033] Figure 8 for Figure 7 Side view of the structure;

[0034] Fig. 9 It is a schematic diagram of the structure when the cable fixing structure has multiple beams;

[0035] Fig.10 It is a structural schematic diagram of the main engine base and the elevator car top in the present invention;

[0036] Fig.11 It is a structural schematic diagram of the main frame in the present invention;

[0037] Fig.12 It is a structural diagram of the car roof;

[0038] Fig.13 This is a structural diagram when the car roof does not have a decorative panel;

[0039] Fig.14 It is a structural schematic diagram of the front column of the frame in the present invention;

[0040] Fig.15 It is the front pillar of the frame of the prior art;

[0041] Fig.16 It is a schematic diagram of the structure of the rope head assembly of the prior art;

[0042] Fig.17 This is a schematic diagram of the installation position of the rope head assembly in the prior art.

[0043] The figure shows:

[0044]

[0045] DETAILED DESCRIPTION

[0046] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0047] The present invention provides a cable fixing structure, which utilizes the principle of Euler's formula, and includes a tubular beam body 501, a fixing device 503, a rope head rod 502 and a cable fixing guide device 508; the tubular beam body 501 is a car roof crossbeam of an elevator car, and the cable is covered along the surface of the tubular beam body 501 by one side of the tubular beam body 501, and then covered along the surface of the rope head rod 502 by one side of the rope head rod 502; the cable fixing guide device 508 is located between the fixing device 503 and the tubular beam body 501, and the cable bypassing the rope head rod 502 passes between the cable fixing guide device 508 and the fixing device 503; the cable passing between the cable fixing guide device 508 and the fixing device 503 is fixed to the tubular beam body 501 by the fixing device 503. The fixing device 503, the cable fixing guide device 508 and the rope head rod 502 are all located above or on the side of the tubular beam body 501 (the side solution can be referred to Fig. 9 The rope 506 comprises a steel belt or a steel wire rope.

[0048] Specifically, Figure 7-Figure 9As shown, the cable fixing structure includes a tubular beam body 501, a rope head rod 502, a fixing device 503 and an inspection device 505. The fixing device 503 is a rope head pressing plate, which is a C-shaped plate structure; the fixing device 503 and the cable fixing guide device 508 are connected to the tubular beam body 501 through screws, the head of the screw is located above or on the side of the tubular beam body 501, and the tail of the screw is located inside the tubular beam body 501. The rope head pressing plate is provided with a rope fixing guide device 508 to ensure that the position where the rope is fixed and the position where it enters the car top are not misaligned. The tubular beam 501 is located inside the elevator car roof and is the crossbeam of the car roof. The rope is suspended on the tubular beam 501. The tubular beam 501 is a tubular structure. In a preferred example, since the tubular beam 501 and the rope end rod 502 are subject to the rotational force of the rope, in order to prevent the tubular beam 501 and the rope end rod 502 from rotating, an anti-rotation structure is also provided on the tubular beam 501 and the rope end rod 502; in a preferred example, the anti-rotation structure is a protruding structure; a groove structure is provided in the car roof, the shape of the protruding structure matches the shape of the groove structure, and the protruding structure is inserted into the groove structure to achieve anti-rotation of the tubular tubular beam 501.

[0049] In a preferred example, a cable entry guide device 507 is provided on the tubular beam body 501 at the entrance side of the cable 506 to ensure that the position where the cable enters the car roof is in the center of the car; the cable entry guide device 507 is located on the side of the tubular beam body 501, and the cable entry guide device 507 is connected to the tubular beam body 501 by a screw, the head of the screw is located on the side of the tubular beam body 501, and the tail of the screw is located inside the tubular beam body 501.

[0050] The cable passes around the tubular beam 501 and then around the rope end rod 502 to become the end of the cable. The rope end pressure plate fixes the cable 506 passing around the rope end rod 502 to the car top; specifically, the rope end pressure plate fixes the cable 506 passing around the rope end rod 502 to the tubular beam 501.

[0051] The cable entry guide device 507 and the cable fixing guide device 508 can both be of the following structures:

[0052] The guide device can provide guidance for the cable 506 by providing a groove on the plate that matches the shape of the cable. Alternatively, the guide device is composed of two plate-like parts, the inner plate is thicker than the cable size, has a notch for limiting the left and right positions on the beam, and the outer plate is pressed on the inner plate and fixed.

[0053] The cable fixing structure also includes operating instructions, which are used to explain the operating methods of installing, inspecting and maintaining the device; the inspection device and operating instructions can be set on the cable entry guide device 507;

[0054] After the elevator is installed, a line is drawn on the cable 506 and the inspection device 505 at the fixed position corresponding to the cable 506. During maintenance, the line can be observed to verify whether the cable is in its original position. In a preferred embodiment, the inspection device 505 is a C-shaped plate structure.

[0055] Existing elevators usually use a wire rope end assembly or a steel belt rope end assembly to fix the wire rope or steel belt to the car top crossbeam. This method requires a height space of more than 250 mm, so the fixing structure will protrude from the car top space. In contrast, the fixing parts (such as the rope end rod 502, the fixing device 503, etc.) involved in the cable fixing structure of the present invention are all located inside the car top, which greatly reduces the requirements for the top floor height of the elevator shaft, and further reduces the requirements for the top floor height of the elevator shaft.

[0056] In a preferred embodiment, in order to increase the angle at which the cable wraps around the tubular beam body 501, the cross beams can be provided in multiple numbers, preferably in two numbers, such as Figure 4 As shown, the cable is continuously passed around a plurality of tubular beams 501 and then fixed.

[0057] The principle of the reduced height cable fixing structure is: according to the Euler formula, after the flexible structure such as the rope body passes around the circular wheel, the maximum tension ratio borne by the two ends satisfies T 1 / T2≤e fα In the formula, T1 and T2 are the larger and smaller pulling forces borne by the two ends of the rope when entering and exiting the circular wheel, f is the equivalent friction coefficient between the rope and the circular wheel, and α is the wrap angle of the rope wrapped around the circular wheel. Figure 8 As shown, in the preferred example where the number of the circular tubular beam body 501 is 1, the angle α>270° can be 300°; Fig. 9 As shown, in the preferred example where the number of the circular tubular beams 501 is 2, the angles of α in the left and right circular tubular beams 501 are α1 and α2 respectively; the angle α1 < 180° can be 150°, and the angle α2 greater than 180° can be 190°. e is the base of the natural logarithm. In the present invention, one end of the cable bears the elevator car load T1, and after it is wrapped around the circular crossbeam on the car top with an angle α, its tension is attenuated to Therefore, a relatively simple method can be adopted to fix the other end so as to suspend the car. Since the conventional rope end fixing device protrudes from the car top, the requirement for the top height of the hoistway is increased, and the adoption of this device can significantly reduce this requirement.

[0058] The present invention also provides an elevator, which adopts the cable fixing structure, and also includes a track frame 1 and a car 2. Figure 1 , 2 as well as Figure 3-Figure 6The car 2 is directly connected to the track frame 1, and the car 2 can move along the height direction of the track frame 1.

[0059] The track frame 1 includes a frame column 11, and a car guide rail 112 extends from the frame column 11; the frame column 11 can be integrally formed with the car guide rail 112. The car 2 is a single-layer structure that accommodates and bears loads. Specifically, the car 2 includes a bottom plate 22 and a car column 21; the bottom plate 22 is connected to the car column 21, and the bottom plate 22 is used to carry people and / or goods; a car guide assembly 3 extends from the car; the car guide rail 112 is connected to the car 2 through the car guide assembly 3.

[0060] In a preferred embodiment, Figure 2 and Figure 5 As shown, the side projection of the frame column 11 overlaps with the side projection of the car column 21. Compared with the solution in the prior art that requires a separate car frame, since there is no car frame, the side projection of the frame column can overlap with the side projection of the car column, which means that the track frame is closer to the car column, that is, the car can be deeper, that is, the elevator increases the area of ​​the car by increasing the car depth. Figure 4 As shown, the car column 21 includes a car column body 211 and a car guide assembly installation position 212;

[0061] In a preferred embodiment, Figure 5 As shown, the side projection of the car guide assembly 3 overlaps with the side projection of the car column 21. The car guide assembly 3 is a roller structure. Specifically, the car guide assembly 3 includes a mounting block 31 and car guide rollers 32. The number of the car guide rollers 32 is 3. The 3 car guide rollers 32 are installed in the car guide assembly installation position 212 through the mounting block 31; two of the car guide rollers 32 are respectively located on both sides of the car guide rail 112, clamping the car guide rail 112, and the other guide roller 32 is arranged vertically with the other guide rollers 32, and abuts against the end face of the car guide rail 112, and sticks to the end face of the car guide rail.

[0062] In a preferred embodiment, Figure 4As shown, the vertical projection of the car column body 211 is an L-shaped structure, and the car column body 211 is sequentially provided with a column side opening groove group, a column first side nut groove 214, a car guide assembly installation position 212, a column rear nut groove 215 and a column rear opening groove group; the column side opening groove group includes a first column side opening groove 213 and a column second side nut groove 216, and the column rear opening groove group includes a column first rear opening groove 217 and a column second rear opening groove 218 arranged parallel to each other. Among them, the car guide assembly installation position 212 is located at the corner of the L-shaped structure, and the car guide assembly installation position 212 is also an L-shaped structure, and the L-shaped long side of the car guide assembly installation position 212 is an open structure, and the first column side opening groove 213 and the column second side nut groove 216 overlap in the width direction; the column first rear opening groove 217 and the column second rear opening groove 218 overlap in the depth direction; the column side opening groove 213 is used to insert glass or photoelectric safety devices or install fixed brackets; the closed part of the column second rear opening groove 218 is used to install light strips or install fixed brackets, and the open part is used to insert glass; the column first rear opening groove 217 is used to accommodate cables. Since the column first rear opening groove 217 is an open structure, the cable can be pushed into the cavity horizontally. Compared with threading in a closed cavity, the difficulty and working time of installation and maintenance are significantly reduced. Because there are multiple large-sized connectors in the prefabricated cable, it is easy to get stuck during the threading process. After the glass is installed in the second rear opening groove 218 of the column, the L-shaped cable trough shield is inserted and the glass pressure strip is pressed in, and the cable trough shield is fixed and covers the first rear opening groove 217 of the column. Since the car column body 211 has a large cross-sectional area, principal moment of inertia and bending section coefficient, and its cross section is provided with a total of 6 nut strip grooves for side connection, including the second side nut groove 216 of the column, the first side nut strip groove 214 of the column, the car guide assembly installation position 212, the rear nut strip groove 215 of the column, and the second rear opening groove 218 of the column, the car guide assembly installation position 212 has one each in the depth and width directions, and the locking positions are numerous and reasonably distributed, and the locking is firm, so when it is locked with the car bottom and possibly also the car top, the car can directly bear and transmit the load, so a separate car frame is no longer required, and it can be designed as a very compact single-layer structure.

[0063] The number of the frame columns 11 is one or more, and the number of the car columns 21 is the same as the number of the frame columns 11. In a preferred embodiment, Figure 1As shown, the track frame 1 also includes a track frame body 10; the car 2 also includes a car structure 20; the number of frame columns 11 is 2, namely, a first frame column and a second frame column, and the first frame column and the second frame column are respectively located at the two top ends of the track frame body 10 in the circumferential direction; and the first frame column and the second frame column are symmetrically arranged with each other; the number of car columns 21 is 2, namely, a first car column and a second car column, and the first car column and the second car column are respectively located at the two top ends of the car structure 20 in the circumferential direction; and the first car column and the second car column are symmetrically arranged with each other; the first frame column is connected to the first car column through a car guide assembly 3, and the second frame column is connected to the second car column through another car guide assembly 3.

[0064] The first car column and the second car column are both rear columns of the car structure; the first frame column and the second frame column are both rear columns of the track frame 1.

[0065] like Figure 3 As shown, the vertical projection of the frame column 11 is U-shaped, and the frame column 11 is provided with a counterweight sealing plate groove 101, a light strip groove 102, a counterweight guide wheel groove 103, a first sealing plate or glass installation groove 104, a first splicing nut strip groove 105, a first wire groove 106, a first anti-fastener rotation limiting groove 107, a second wire groove 1061, a second anti-fastener rotation limiting groove 1071, a second splicing nut strip groove 1051, and a second sealing plate or glass installation groove 1041. The counterweight guide wheel groove 103 is a U-shaped structure. Bolt hole guide wire grooves 108 are provided beside the first anti-fastener rotation limiting groove 107 and the second anti-fastener rotation limiting groove 1071. When the frame column 11 is opened along the guide wire to fix the fastener, the bolt head or nut located in the column will be restricted from rotating by the limiting groove, so there is no need to hold it separately. A first installation and splicing positioning hole 109 is opened beside the second wire groove 1061 , and the first installation and splicing positioning hole 109 is communicated with the second wire groove 1061 .

[0066] The car structure 20 includes a wall panel 23 and a car roof, that is, the car 2 is a car composed of a car column 21, a bottom plate 22, a wall panel 23 and a car roof. In a preferred example, the wall panel 23 is integrally connected to the car column 21. At this time, the elevator can be understood as a single-layer load-bearing car that can withstand eccentric loads and does not have a separate car frame. The car guide assembly 3 can extend from the car column 21, or from the bottom plate 22, the wall panel 23 or the car roof. In addition, the car can also be suspended by the car roof. In this preferred example, the car guide rails 112 are located at two ends of the same side of the car body, and the car guide assembly 3 is directly fixed to the top, middle or lower part of the car column 21. The elevator also includes a light strip, a counterweight sealing plate 7 and a rear side sealing plate, such as Figure 1 shown.

[0067] like Figure 6 As shown, the elevator further includes a counterweight structure 4, and a counterweight guide assembly 5 is installed on the counterweight structure 4 through a support frame; counterweight guide assemblies 5 are provided at both ends of the counterweight structure 4. Preferably, the counterweight guide assembly 5 includes a counterweight guide roller 51, and the number of the counterweight guide rollers 51 is 2, and the two counterweight guide rollers 51 are arranged perpendicular to each other, one counterweight guide roller 51 contacts the bottom of the counterweight guide wheel groove 103 of the track frame 1, and the other counterweight guide roller 51 contacts the two sides of the counterweight guide wheel groove 103. Since the counterweight guide wheel groove 103 of the elevator is designed as a U-shaped structure, it can achieve the guidance in the front and rear directions by cooperating with one roller, thereby reducing the requirements of the counterweight guide assembly device on the depth space occupied.

[0068] Compared with the prior art, the elevator omits the backpack frame in order to expand the volume of the car, but the original functions of the backpack frame (such as realizing the up and down movement of the car, bearing and transferring loads) need to be retained, so the structure of the car needs to be redesigned, which is extremely difficult.

[0069] like Figure 10-11 As shown, the elevator further comprises a main engine base 700 capable of lowering the top floor height of the elevator shaft. The main engine base 700 is installed in the top structure of the shaft of the elevator.

[0070] The main engine base 700 is used to carry the elevator main engine 701. The main engine base 700 includes a high portion 702, a connecting portion 703 and a main engine base recess 704. The height of the high portion 702 is higher than the main engine base recess 704. The two ends of the connecting portion 703 are respectively connected to the high portion 702 and the main engine base recess 704.

[0071] The elevator main engine 701 is installed on the top surface of the main engine seat recess 704. The width of the main engine seat 700 is smaller than the width of the elevator main engine 701. The bottom surface of the main engine seat recess 704 is the lowest plane in the hoistway top structure that coincides with the car projection surface.

[0072] like Fig.12 , Fig.13As shown, the car roof 713 of the elevator includes a tubular beam 501, a first side beam 706, a second side beam 707 and a decorative plate 710, and the plane where the upper surface of the beam is located is defined as an upper plane 708, and the plane where the lower surface of the beam is located is defined as a lower plane 709. The tubular beam 501 is located in the middle of the first side beam 706 and the second side beam 707, and connects the first side beam 706 and the second side beam 707. The tubular beam 501 divides the space between the first side beam 706 and the second side beam 707 into a first space 711 and an electrical component installation space 712; the decorative plate 710 covers the electrical component installation space 712. The bottom area of ​​the main frame recess 704 is smaller than the area of ​​the first space 711.

[0073] like Fig.10 As shown, when the elevator car moves upward to the extreme position, the lower plane of the main engine seat recess 704 protrudes into the upper plane of the elevator car top. Specifically, the main engine seat recess 704 protrudes into the first space 711 and can be infinitely close to the lower plane 709.

[0074] The matching relationship between the traditional main engine seat and the elevator car top is: when the elevator car moves upward to the extreme position, the lowest plane in the hoistway top structure that coincides with the car projection plane is misaligned in height with the upper plane 708 of the car top, that is, the height of the bottom surface of the existing main engine seat is always higher than the height of the upper plane 708 of the car top.

[0075] Unlike the traditional main engine seat, the bottom surface of the main engine seat recess 704 of the elevator can protrude into the upper plane of the elevator car roof. Therefore, when the elevator car moves upward to the limit position, the bottom surface height of the main engine seat in the elevator is lower than the height of the upper plane 708 of the car roof. Therefore, this design can reduce the minimum top floor height requirement of the elevator. In addition, the width of the top structure of the hoistway sinking into the lower plane of the elevator car roof + the width of the two side beams of the car roof is the minimum limit width of the car. The width of the main engine seat recess 704 is smaller than that of the main engine. Therefore, this main engine seat can achieve the minimum limit width of the car.

[0076] like Fig.14 As shown, the elevator further includes a frame front column 300, the frame front column 300 includes a column body 301 and a cover plate 302, the column body 301 and the cover plate 302 cooperate with each other, specifically, the cover plate 302 and the column body 301 are toothed structures that fit together, and form overall strength after combination, more specifically, the column body 301 is provided with a first toothed connection surface 3015, the cover plate 302 is provided with a second toothed connection surface 3021, the first toothed connection surface 3015 and the second toothed connection surface 3021 cooperate with each other. After the column body 301 and the cover plate 302 are combined, a wire slot cavity 303 is formed inside.

[0077] The column body 301 includes a first bolt hole guide groove 3011, a second bolt hole guide groove 3012, a third anti-fastener rotation limit groove 3013, a fourth anti-fastener rotation limit groove 3014, a second installation and splicing positioning hole 3017, a third splicing nut strip groove 3018, a third sealing plate or glass installation groove 3019 and a protection plate 30191. A screw protection groove 3016 is formed between the protection plate 30191 and the first toothed connection surface 3015. The protection plate 30191 is located between the screw protection groove 3016 and the wire groove cavity 303.

[0078] The cover plate 302 is provided with a third bolt hole guide groove 3022 and a fourth bolt hole guide groove 3023 .

[0079] The working principle of the front column of the frame is as follows: when the fasteners are fixed by opening holes along the bolt hole guide grooves 3011 and 3012, the bolt heads or nuts located in the column will be restricted in rotation by the anti-fastener rotation limit grooves 3013 and 3014, so no additional holding is required; with the help of the third bolt hole guide groove 3022 and the fourth bolt hole guide groove 3023 cooperating bolts, after the cover plate 302 is fixed to the column body 301, the second toothed connecting surface 3021 on the cover plate 302 and the first toothed connecting surface 3015 on the column body 301 protrude and bite each other, and the screw head protruding from the outside of the cover plate 302 into the column body 301 in the direction of the groove cavity 303 is blocked by the protective plate 30191, thereby protecting the cables in the groove cavity.

[0080] Figure 4 As shown in the figure, the front column of the frame is an important structural member of the elevator shaft frame. Especially when the strength of its corner part is insufficient, it will cause the front side of the shaft frame to shift easily and reduce the stability of the shaft frame as a whole. At the same time, the front column of the frame is also the installation basis of the landing door and elevator call device of each floor of the elevator. Multiple cables such as door machine drive cable, door lock safety circuit, elevator call cable, etc. need to be arranged along the front column of the frame and pass through the front column at different positions on each floor to enter the door head of the landing door and the elevator call device.

[0081] Fig.15A frame front column of the prior art is shown, and its corner part is a closed cavity with good structural strength. When the shaft wall panel is an opaque material such as a steel plate, an aluminum-plastic plate, or a wooden board, the above-mentioned cable can be arranged along the inner side of the corner part of the frame front column, and a branch cable can be extended on each floor. The branch cable passes through the through hole on the frame front column and enters the door head and the elevator call device. However, with the development of society, more and more villa owners choose to install elevators at home, and require the elevator to use glass as the shaft wall panel, that is, the elevator shaft is a sightseeing shaft; at this time, if the cable is still installed on the inner side of the corner part of the frame front column, the aesthetics of the product will be greatly reduced; for this reason, it is necessary to pre-install the above-mentioned cable in sections in the closed cavity of each section of the frame front column in the factory during the production of the elevator, and leave joints at the upper and lower ends for connecting with the cables in the upper and lower frame front columns. When installing on site, it is necessary to first connect the cable joints and then connect the frame front column, which is not only cumbersome to install, but also difficult to maintain.

[0082] Compared with the traditional frame front column, the frame front column body 301 of the elevator has a wire trough cavity 303 with an open structure, which is very convenient for cable installation and maintenance; at the same time, after the cable installation is completed and the cover plate 302 is closed, the cover plate 302 not only covers the wire trough cavity, but also engages with the column body 301 through the tooth structure, thereby ensuring the structural strength.

[0083] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0084] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A cable fixing structure, characterized in that: It comprises a tubular beam body (501), a fixing device (503), a rope head rod (502) and a rope fixing guide device (508); The tubular beam (501) is a roof beam of an elevator car, and the rope (506) is wrapped along the surface of the tubular beam (501) from one side of the tubular beam (501), and then wrapped along the surface of the rope head rod (502) from one side of the rope head rod (502); The cable fixing guide device (508) is located between the fixing device (503) and the tubular beam body (501), and the cable (506) bypassing the rope head rod (502) passes between the cable fixing guide device (508) and the fixing device (503); The cable passing through the cable fixing guide device (508) and the fixing device (503) is fixed on the tubular beam body (501) by the fixing device (503); The fixing device (503), the cable fixing guide device (508) and the rope head rod (502) are all located above or on the side of the tubular beam body (501); The rope (506) comprises a steel belt or a steel wire rope.

2. The cable fixing structure according to claim 1, characterized in that: The fixing device (503) is a rope end pressure plate; the rope end pressure plate is a C-shaped plate structure; the fixing device (503) and the cable fixing guide device (508) are connected to the tubular beam body (501) through screws, the head of the screw is located above or on the side of the tubular beam body (501), and the tail of the screw is located inside the tubular beam body (501).

3. The cable fixing structure according to claim 1, characterized in that: There are multiple circular tubular beams (501), and the rope (506) is passed around multiple circular tubular beams (501) in succession, and then passed around the rope head rod (502), and finally fixed on the last circular tubular beam (501).

4. The cable fixing structure according to claim 1, characterized in that: The circular tubular beam body (501) is also provided with an anti-rotation structure.

5. The cable fixing structure according to claim 4, characterized in that: The anti-rotation structure is a convex structure; A groove structure is provided in the car roof, the shape of the protruding structure matches the shape of the groove structure, and the protruding structure is inserted into the groove structure to prevent the circular tubular beam body (501) from rotating.

6. The cable fixing structure according to claim 1, characterized in that: Also includes a cable entry guide device (507); The cable entry guide device (507) is located on the side of the circular tubular beam body (501), and the cable entry guide device (507) is connected to the circular tubular beam body (501) via a screw, the head of the screw is located on the side of the circular tubular beam body (501), and the tail of the screw is located inside the circular tubular beam body (501); The circular tubular beam body (501) is provided with a cable entry guide device (507) on the side where the cable (506) enters.

7. The cable fixing structure according to claim 1, characterized in that: It also includes an inspection device (505); the inspection device (505) is a C-shaped plate structure; the inspection device is installed on the cable entry guide device (507).

8. The cable fixing structure according to claim 1, characterized in that: The structures of the cable fixing guide device (508) and the cable entry guide device (507) are any of the following structures: It is a single plate with a groove matching the shape of the rope; Alternatively, the guide device is composed of two plate-like parts, the inner plate is thicker than the cable size and has a notch for limiting the left and right positions on the beam, and the outer plate is pressed onto the inner plate and then fixed.

9. An elevator, characterized in that: A cable fixing structure as claimed in any one of claims 1 to 8 is adopted.

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