Frame front stand column and elevator

Abstract

The utility model provides a frame front stand column and an elevator. The frame front stand column comprises a stand column body and a cover plate, and the stand column body is of an L-shaped structure. The stand column body and the cover plate are detachably matched through mutually-embedded tooth-shaped structures. A wire slot cavity is formed inside after the stand column body and the cover plate are combined. A first tooth-shaped connecting face is arranged on the stand column body, a second tooth-shaped connecting face is arranged on the cover plate, and the first tooth-shaped connecting face and the second tooth-shaped connecting face are matched with each other. Compared with a traditional frame front stand column, the frame front stand column is provided with a wire groove cavity of an open structure, and cables are quite convenient to install and maintain; meanwhile, after the cable is installed and the cover plate is closed, the cover plate not only covers the wire duct cavity, but also ensures the structural strength through the mutual embedding of the tooth-shaped structure and the stand column body.

Description

Technical Field

[0001] This utility model relates to the field of elevators, specifically to a front column of a frame and an elevator. Background Technology

[0002] The front column of the elevator shaft frame is a crucial structural component. In particular, insufficient strength at its corners can lead to displacement of the front of the shaft frame and reduce its overall stability. Simultaneously, the front column serves as the installation foundation for the landing doors and call devices at each floor. Multiple cables, including the door operator drive cable, door lock safety circuit, and call cable, must be laid along the front column and pass through it at different locations on each floor to reach the landing door header and call device.

[0003] Figure 19 The diagram illustrates a prior art frame front column with a closed cavity at its corner, providing good structural strength. When the elevator shaft wall panels are made of opaque materials such as steel plates, aluminum composite panels, or wood panels, the aforementioned cables can be arranged along the inner side of the corner of the frame front column, with branch cables extending from each floor. These branch cables pass through through holes in the frame front column and enter the landing door header and call device.

[0004] However, with social development, more and more villa owners are choosing to install elevators in their homes and requesting that the elevator shafts use glass as wall panels, i.e., sightseeing shafts. In this case, if the cables are still installed on the inside of the corner of the front column of the frame, it will greatly reduce the aesthetics of the product. Therefore, it is necessary to pre-install the above-mentioned cables in sections in the closed cavity of each section of the front column of the frame during elevator production, and leave connectors at the top and bottom ends for connecting with the cables in the upper and lower front columns of the frame. However, this solution requires connecting the cable connectors first and then connecting them to the front columns of the frame during on-site installation, which is not only cumbersome to install, but also impossible to maintain. Utility Model Content

[0005] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a frame front column and an elevator.

[0006] According to the present invention, a front column of a frame includes a column body and a cover plate. The column body has an L-shaped structure. The column body and the cover plate are detachably connected by interlocking tooth-like structures.

[0007] After the column body and the cover plate are combined, a groove cavity is formed inside.

[0008] Preferably, the column body is provided with a first toothed connecting surface, and the cover plate is provided with a second toothed connecting surface, the first toothed connecting surface and the second toothed connecting surface cooperate with each other.

[0009] Preferably, the column body includes a protective plate; the cover plate is provided with a third bolt hole guide groove and a fourth bolt hole guide groove;

[0010] A screw protection groove is formed between the protective plate and the first toothed connecting surface, and the protective plate is located between the screw protection groove and the wire groove cavity.

[0011] Preferably, the column body includes a third splicing nut groove and a third sealing plate or glass mounting groove;

[0012] The third splicing nut groove, the third sealing plate or glass mounting groove, and the wire groove cavity are arranged in sequence.

[0013] Preferably, the column body further includes a third anti-fastener rotation limiting groove, a fourth anti-fastener rotation limiting groove, and a second installation and splicing positioning hole; the third anti-fastener rotation limiting groove, the fourth anti-fastener rotation limiting groove, and the second installation and splicing positioning hole are all connected to the cable groove cavity.

[0014] The third anti-fastener rotation limiting groove and the fourth anti-fastener rotation limiting groove are arranged symmetrically, and the second installation and splicing positioning hole is set at the corner of the column body.

[0015] Preferably, the column body includes a first bolt hole guide groove and a second bolt hole guide groove;

[0016] The position of the first bolt hole guide groove corresponds to the position of the third anti-fastener rotation limiting groove, and the position of the second bolt hole guide groove corresponds to the position of the fourth anti-fastener rotation limiting groove.

[0017] An elevator according to the present invention includes the aforementioned frame front column.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Compared with the traditional frame front column, this utility model has an open structure cable tray cavity, which makes cable installation and maintenance very convenient; at the same time, after the cable is installed and the cover plate is closed, the cover plate not only covers the cable tray cavity, but also interlocks with the column body through the toothed structure, ensuring the structural strength.

[0020] 2. This utility model is equipped with a protective plate, which prevents the bolt head protruding into the column body from being blocked by the protective plate when the screw enters from the third bolt hole guide groove and the fourth bolt hole guide groove, thereby protecting the cable in the groove cavity. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a top view structural diagram of the elevator in this utility model;

[0023] Figure 2 This is a partial structural schematic diagram of the side view of the elevator in this utility model;

[0024] Figure 3 This is a top view structural diagram of the rear column of the frame in this utility model;

[0025] Figure 4 This is a top view structural schematic diagram of the rear column of the car in this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the frame rear column and the car rear column in this utility model.

[0027] Figure 6 This is a schematic diagram of the structure in which the counterweight structure and the rear column of the frame cooperate in this utility model;

[0028] Figure 7 This is a schematic diagram of the height reduction cable fixing structure of this utility model:

[0029] Figure 8 for Figure 7 Side view of the structure;

[0030] Figure 9 A schematic diagram of a height-reducing cable fixing structure with multiple crossbeams;

[0031] Figure 10 A schematic diagram of the second height-reducing cable fixing structure when the rope end is installed inside the car top: Figure 11 A schematic diagram of the second rope fixing structure for reducing height when the rope end is installed in the elevator shaft:

[0032] Figure 12 A structural diagram of the elevator with the rope end installed inside the car top;

[0033] Figure 13 A structural diagram of an elevator when the rope end is installed inside the elevator shaft;

[0034] Figure 14 This is a schematic diagram illustrating the structure of the main unit base and the elevator car top in this utility model;

[0035] Figure 15 This is a schematic diagram of the main unit base in this utility model;

[0036] Figure 16 This is a schematic diagram of the car roof structure;

[0037] Figure 17This is a structural diagram showing the car roof without decorative panels.

[0038] Figure 18 This is a schematic diagram of the structure of the front column of the frame in this utility model;

[0039] Figure 19 It serves as a framework for existing technologies.

[0040] The diagram shows:

[0041]

[0042]

[0043] Detailed Implementation

[0044] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0045] This utility model provides a frame front column 300 such as Figure 18 As shown, the front column 300 of the frame 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 joint between the cover plate 302 and the column body 301 is a toothed structure that interlocks with each other, forming an overall strength after assembly. More specifically, the column body 301 is provided with a first toothed connecting surface 3015, and the cover plate 302 is provided with a second toothed connecting surface 3021. The first toothed connecting surface 3015 and the second toothed connecting surface 3021 cooperate with each other. After the column body 301 and the cover plate 302 are combined, a groove cavity 303 is formed inside.

[0046] The column body 301 includes a first bolt hole guide groove 3011, a second bolt hole guide groove 3012, a third anti-fastener rotation limiting groove 3013, a fourth anti-fastener rotation limiting groove 3014, a second mounting and splicing positioning hole 3017, a third splicing nut groove 3018, a third sealing plate or glass mounting groove 3019, and a protective plate 30191. A screw protection groove 3016 is formed between the protective plate 30191 and the first toothed connecting surface 3015. The protective plate 30191 is located between the screw protection groove 3016 and the wire groove cavity 303.

[0047] The cover plate 302 is provided with a third bolt hole guide groove 3022 and a fourth bolt hole guide groove 3023.

[0048] When fasteners are fixed by drilling holes along the bolt hole guide grooves 3011 and 3012, the bolt heads or nuts located inside the column will be restricted from rotating by the anti-fastener rotation limiting grooves 3013 and 3014, so no additional holding is required. After the cover plate 302 is fixed to the column body 301 with the bolts using the third bolt hole guide groove 3022 and the fourth bolt hole guide groove 3023, the second toothed connecting surface 3021 on the cover plate 302 and the first toothed connecting surface 3015 on the column body 301 protrude into each other and engage. The bolt heads that protrude from the outside of the cover plate 302 toward the cable tray cavity 303 into the column body 301 are blocked by the protective plate 30191, thereby protecting the cables inside the cable tray cavity.

[0049] like Figure 4 , Figure 1 , Figure 2 , Figure 14 As shown, the front column of the frame is a crucial structural component of the elevator shaft frame. Especially when the strength of its corner section is insufficient, it can lead to easy displacement of the front side of the shaft frame and reduce the overall stability of the shaft frame. Simultaneously, the front column also serves as the installation foundation for the landing doors and call devices at each elevator floor. Multiple cables, including the door operator drive cable, door lock safety circuit, and call cable, need to be laid along the front column and pass through it at different locations on each floor to reach the landing door header and call device.

[0050] Compared with traditional frame front columns, the frame front column body 301 of this utility model has an open structure cable tray cavity 303, which makes cable installation and maintenance very convenient. At the same time, after the cable is installed and the cover plate 302 is closed, the cover plate 302 not only covers the cable tray cavity, but also interlocks with the column body 301 through the toothed structure, ensuring structural strength.

[0051] This utility model also provides an elevator, including the aforementioned front column of the frame, and further including a track frame 1 and a car 2, wherein the front column of the frame is the front column of the track frame 1. (Reference) Figure 1 , 2 as well as Figures 3-6 The 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.

[0052] The track frame 1 includes a rear frame column 11, from which a car guide rail 112 extends; the rear frame column 11 and the car guide rail 112 can be integrally formed. The car 2 is a single-layer structure that accommodates and bears loads. Specifically, the car 2 includes a floor plate 22 and a rear car column 21; the floor plate 22 is connected to the rear car column 21, and the floor 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.

[0053] In a preferred example, such as Figure 2 and Figure 5 As shown, the side projection of the rear column 11 of the frame overlaps with the side projection of the rear column 21 of the car. Compared to the prior art that requires a separate car frame, since there is no car frame, the side projections of the rear columns of the frame and the rear columns of the car can overlap. This means that the track frame and the rear column of the car are closer together, allowing the car to be deeper. In other words, the elevator increases the car's area by increasing its depth. Figure 4 As shown, the rear pillar 21 of the car includes the rear pillar body 211 and the car guide component mounting position 212;

[0054] In a preferred example, such as Figure 5 As shown, the side projection of the car guide assembly 3 overlaps with the side projection of the rear column 21 of the car. 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. There are three car guide rollers 32, which are installed on the car guide assembly mounting position 212 via the mounting block 31. Two of the car guide rollers 32 are located on both sides of the car guide rail 112, clamping the car guide rail 112. The other guide roller 32 is arranged perpendicularly to the other guide rollers 32 and abuts against the end face of the car guide rail 112.

[0055] In a preferred example, such as Figure 4As shown, the vertical projection of the rear column body 211 of the car is an L-shaped structure, and the rear column body 211 of the car is provided with the following in sequence: a column side opening groove group, a first side nut groove 214, a car guide component mounting position 212, a rear nut groove 215, and a rear opening groove group; the column side opening groove group includes a first column side opening groove 213 and a second side nut groove 216, and the rear opening groove group includes a first rear opening groove 217 and a second rear opening groove 218 arranged in parallel with each other. The car guide component mounting position 212 is located at the corner of the L-shaped structure. The car guide component mounting position 212 is also L-shaped, with its long L-shaped side being open. The first column side opening groove 213 and the second column side nut groove 216 coincide in the width direction; the first column rear opening groove 217 and the second column rear opening groove 218 coincide 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 portion of the second column rear opening groove 218 is used to install light strips or fixed brackets, while the open portion is used to insert glass. The first column rear opening groove 217 is used to accommodate cables. Because the first column rear opening groove 217 is an open structure, cables can be smoothly pushed into the cavity. Compared to threading cables in a closed cavity, the installation and maintenance difficulty and working time are significantly reduced (because prefabricated cables contain multiple large connectors, which can easily get stuck during threading). After the glass is installed in the second rear opening slot 218 of the column, the L-shaped cable trough cover is inserted, and the glass pressure strip is pressed in. The cable trough cover is then fixed and covers the first rear opening slot 217 of the column. Because the main body 211 of the rear column of the car has a large cross-sectional area, principal moment of inertia and bending section modulus, and its cross-section is provided with a total of 6 nut strip slots for side connection (the second side nut slot 216 of the column, the first side nut strip slot 214 of the column, the car guide component mounting position 212, the rear nut strip slot 215 of the column, and the second rear opening slot 218 of the column), there are many locking positions and they are reasonably distributed, and the locking is firm. Therefore, when it is locked with the car bottom and possibly the car top, the car can directly bear and transmit the load, so there is no need for a separate car frame, and it can be designed as a very compact single-layer structure.

[0056] The number of the rear support columns 11 of the frame is one or more, and the number of the rear support columns 21 of the car is the same as the number of the rear support columns 11 of the frame. In a preferred embodiment, such as... Figure 1As shown, the track frame 1 further includes a track frame body 10; the car 2 further includes a car structure 20; there are two rear support columns 11, located at the two circumferential ends of the track frame body 10, and arranged symmetrically; there are also two rear support columns 21, located at the two circumferential ends of the car structure 20, and arranged symmetrically. Each rear support column 11 of the frame and each rear support column 21 of the car are connected by a single car guide assembly 3.

[0057] like Figure 3 As shown, the vertical projection of the rear column 11 of the frame is U-shaped. The rear column 11 is sequentially 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 mounting 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 mounting groove 1041. The counterweight guide wheel groove 103 has a U-shaped structure. Bolt hole guide grooves 108 are provided next to both the first and second anti-fastener rotation limiting grooves 107 and 1071. When the rear column 11 of the frame is fixed with fasteners through holes along these guide grooves, the bolt heads or nuts located inside the column are restricted from rotation by the limiting grooves, thus eliminating the need for additional holding. A first mounting and splicing positioning hole 109 is provided next to the second cable trough 1061, and the first mounting and splicing positioning hole 109 is connected to the second cable trough 1061.

[0058] The car structure 20 includes a wall panel 23 and a car roof. That is, the car 2 is composed of a rear column 21, a floor 22, wall panels 23, and a car roof. In a preferred embodiment, the wall panel 23 is integrally connected to the rear column 21. In this case, the elevator can be understood as a single-layer load-bearing car capable of withstanding eccentric loads, without a separate car frame. The car guide assembly 3 can extend from the rear column 21, or from the floor 22, wall panel 23, or car roof. Furthermore, the car can be suspended from the car roof. In this preferred embodiment, the car guide rail 112 is located at both ends on the same side of the car body, and the car guide assembly 3 is directly fixed to the top, middle, or bottom of the rear column 21. The elevator also includes a light strip, a counterweight sealing plate 7, and a rear side sealing plate, such as... Figure 1 As shown.

[0059] like Figure 6As shown, the elevator also includes a counterweight structure 4, and a counterweight guide assembly 5 is mounted on the counterweight structure 4 via a support frame; counterweight guide assemblies 5 are provided at both ends of the counterweight structure 4. Preferably, the counterweight guide assembly 5 includes two counterweight guide rollers 51, which are arranged perpendicularly 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 both sides of the counterweight guide wheel groove 103. Because the counterweight guide wheel groove 103 is designed with a U-shape, the elevator can achieve forward and backward guidance with just one roller, thereby reducing the depth space requirement of the counterweight guide assembly device.

[0060] Compared to existing technologies, this elevator omits the backpack frame in order to increase the car volume. However, the original functions of the backpack frame (such as enabling the car to move up and down and bearing and transmitting loads) need to be retained. Therefore, the structure of the car needs to be redesigned, which is extremely difficult.

[0061] The elevator also includes a height reduction cable fixing structure, the cable including steel strip or steel wire rope, the height reduction cable fixing structure being used to connect the steel strip 506 or steel wire rope in the elevator to the car top.

[0062] The height-reducing cable fixing structure can be either of the following two structures:

[0063] Height Reduction Cable Fixing Structure 1:

[0064] like Figure 7 , Figure 8 As shown, the height reduction rope fixing structure utilizes the Euler formula principle. Specifically, the height reduction rope fixing structure includes a circular tube beam 501, a rope end bar 502, a fixing device 503, and an inspection device 505; the fixing device 503 is a rope end pressure plate.

[0065] The circular tube beam 501 is located inside the elevator car top and serves as the beam of the car top. The steel belt 506 is suspended on the circular tube beam 501. The circular tube beam 501 is a circular tube structure. In a preferred embodiment, since the circular tube beam 501 and the rope end bar 502 will be subjected to the rotational force of the steel belt, an anti-rotation structure is also provided on the circular tube beam 501 and the rope end bar 502 to prevent them from rotating.

[0066] In a preferred embodiment, a cable entry guide device 507 is provided on the circular tube beam 501 on the entry side of the steel belt 506 to ensure that the position of the steel belt entering the car top is at the center of the car.

[0067] The steel strip passes over the circular tube beam 501 and then over the rope head bar 502 to become the end of the steel strip. The rope head pressure plate fixes the steel strip 506 that passes over the rope head bar 502 to the car top. Specifically, the rope head pressure plate fixes the steel strip 506 that passes over the rope head bar 502 to the circular tube beam 501.

[0068] In a preferred embodiment, a rope fixing guide device 508 is provided at the rope end pressure plate to ensure that the position where the steel belt is fixed is not misaligned with the position where it enters the car top; both the rope entry guide device 507 and the rope fixing guide device 508 can have the following structure:

[0069] The guide device can be a single plate with grooves on it that match the shape of the steel strip to guide the steel strip 506. Alternatively, the guide device can consist of two plate-like parts, with the inner plate being thicker than the steel strip and having notches to limit its left and right position on the crossbeam, and the outer plate pressing against the inner plate to fix it in place.

[0070] The height reduction rope fixing structure also includes an operating manual, which explains the installation, inspection and maintenance methods of the device; the inspection device and the operating manual can be installed on the rope entry guide device 507.

[0071] After the elevator is installed, lines are drawn on the steel belt 506 and the inspection device 505 at the fixing points corresponding to the steel belt 506. During maintenance, the lines are observed to verify whether the steel belt is in its original position. In a preferred embodiment, the inspection device 505 is a C-shaped plate structure.

[0072] Existing elevators typically use wire rope end assemblies or steel strip end assemblies to fix the wire rope or steel strip to the car top beam. This method requires a height space of more than 250mm, so the fixing structure protrudes from the car top space. In contrast, the fixing components (such as rope end bar 502, fixing device 503, etc.) involved in the height-reducing cable fixing structure in the elevator described above are all located inside the car top, greatly reducing the requirement for the height of the top floor of the elevator shaft.

[0073] In a preferred embodiment, to increase the angle at which the steel strip wraps around the circular tube beam 501, multiple beams can be provided, preferably two, such as... Figure 9 As shown, the steel strip is fixed after continuously wrapping around multiple crossbeams.

[0074] The principle of the height reduction cable fixing structure is as follows: According to Euler's formula, after a flexible structure such as a rope passes over a circular wheel, the ratio of the maximum tension at its two ends satisfies T. 1 / T2≤e fα In the formula, T1 and T2 represent the maximum and minimum tension forces borne by the two ends of the rope entering and exiting the circular pulley, respectively; f is the equivalent coefficient of friction between the rope and the circular pulley; and α is the wrap angle of the rope on the circular pulley. Figure 8As shown, in a preferred embodiment where the number of circular tube beams 501 is one, α > 270°, and can be 300°; for example... Figure 9 As shown, in the preferred embodiment where there are two circular tube beams 501, the angles α in the left and right circular tube beams 501 are α1 and α2, respectively; α1 < 180° can be 150°, and α2 > 180° can be 190°. e is the base of the natural logarithm. In the elevator, one end of the steel strip bears the elevator car load T1. After it is wrapped around the circular beam on the car top with a wrap angle α, its tension decreases to... Therefore, a relatively simple method can be used to fix the other end to suspend the car. Since conventional rope end fixing devices protrude from the car top, increasing the height requirement of the top floor of the hoistway, this device can significantly reduce this requirement.

[0075] Height Reduction Cable Fixing Structure Two:

[0076] like Figures 10-13 As shown, the height-reducing cable fixing structure includes a rope end fixing assembly, a movable rope end plate 602, a rope end spring device, and a opposite rope end plate 609. The number of rope end fixing assemblies is the same as the number of steel strips. There is one movable rope end plate 602, which includes a flat portion 6021 and a protruding portion 6022. The protruding portion 6022 is located between the two flat portions 6021, and the flat portions 6021 and the protruding portion 6022 are at different heights. A rope end screw hole is provided on the protruding portion 6022, and rope end spring holes are symmetrically provided on the two flat portions 6021.

[0077] The rope end fixing assembly includes a rope end 600, a rope end screw 601, a shock-absorbing rubber 603, a rubber end seat 604, a rope end nut 605, a locking nut 606, a cotter pin 607, and a pre-installed nut 608.

[0078] like Figure 10 and Figure 12 As shown, the rope end 600 can be installed inside the car top. In this case, the opposite rope end plate 609 is fixed to the car top crossbeam of the elevator, i.e., the opposite rope end plate 609 is the rope end plate. Or as... Figure 11 and Figure 13 As shown, the rope head 600 is installed in the elevator shaft. At this time, the opposite rope head plate 609 is fixed to the wall 613, that is, the opposite rope head plate 609 is a fixed rope head plate.

[0079] One side of the rope head 600 is connected to the steel strip 506 to transmit the load, and the other side is fixedly connected to the rope head screw 601. The end of the rope head screw 601 passes through the pre-installed nut 608, the rope head screw hole on the movable rope head plate 602, the shock-absorbing rubber 603, and the rubber end seat 604 in sequence. The end position and anti-loosening are maintained by the rope head nut 605, the locking nut 606, and the cotter pin 607.

[0080] The rope end spring devices are located between the opposite rope end plate 609 and the flush portion 6021, and are arranged symmetrically, with a quantity of two or an even number. Each rope end spring device includes one rope end spring 610, two spring end seats 611, and one preload bolt 612, wherein the upper spring end seat 611 has a threaded hole, and the lower spring end seat 611 has a through hole.

[0081] The rope end spring 610 is fitted onto the spring end seat 611. One end of the rope end spring 610 is fixedly connected to the movable rope end plate 602 via a spring end seat 611, and the other end is fixedly connected to the opposite rope end plate 609 via another spring end seat 611. The pre-tightening bolt 612 passes through the rope end spring hole on the movable rope end plate 602, the spring end seat 611, and the rope end spring 610, and is screwed into the threaded hole of the spring end seat 611 fixed to the opposite rope end plate 609.

[0082] In the elevator described, in the horizontal direction, the rope end spring 610, which has a relatively large height, and other fixing components (including rope end 600, rope end screw 601, shock-absorbing rubber 603, rubber end seat 604, rope end nut 605, locking nut 606, and cotter pin 607) are arranged in a staggered manner. Therefore, the rope end spring 610 does not occupy the height dimension of the fixing components, thereby reducing the overall height of the fixing structure and thus reducing the requirement for the height of the top floor of the elevator shaft. In addition, the surface of the movable rope end plate used to install the rubber and spring is designed as a stepped structure in the height direction (i.e., the height of the flush part 6021 and the protrusion part 6022 are different), which further reduces the overall height of the fixing structure except for the rope end 600. Therefore, except for the rope end 600, all other fixing structures can be hidden inside the car top, greatly improving the aesthetics of the car top.

[0083] In addition, the design of one end of the elevator rope head spring 610 being fixedly connected to the movable rope head plate and the other end being fixedly connected to the opposite rope head plate 609 fixed to the car top ensures that the position of the movable rope head plate directly corresponds to the compression of the rope head spring and is not affected by the compression of the rubber shock absorber 603, thus avoiding interference from rubber nonlinearity and easy aging. Therefore, it can be used to accurately detect the load on the elevator car. In a preferred embodiment, the pre-installed nuts and pre-tightening bolts of the elevator are used to pre-tighten and combine the rope head fixing assembly, movable rope head plate 602, rope head spring device, and opposite rope head plate 609 into a component in the factory. After the rope head is installed on site and bears the load, the pre-tightening force of the pre-installed nuts and pre-tightening bolts naturally disappears and does not need to be removed.

[0084] In a preferred embodiment, the height-reducing cable fixing structure is also equipped with a scale for checking the spring compression. A detection device for the position of the movable rope end plate can also be provided to measure the rope end load.

[0085] like Figures 14-15 As shown, the elevator also includes a main unit base 700 capable of lowering the height of the top floor of the elevator shaft. The main unit base 700 is installed in the top structure of the elevator shaft.

[0086] The main support 700 is used to support the elevator main unit 701. The main support 700 includes a high part 702, a connecting part 703 and a main support recess 704. The height of the high part 702 is higher than that of the main support recess 704. The two ends of the connecting part 703 are respectively connected to the high part 702 and the main support recess 704.

[0087] The elevator host 701 is mounted on the top surface of the host base recess 704. The width of the host base 700 is smaller than the width of the elevator host 701. The bottom surface of the host base recess 704 is the lowest plane in the top structure of the shaft that coincides with the projection plane of the car.

[0088] like Figure 16 , Figure 17 As shown, the elevator's car top 713 includes a car top beam 705, a first side beam 706, a second side beam 707, and a decorative panel 710. The plane containing the upper surface of the beams is defined as the upper plane 708, and the plane containing the lower surface of the beams is defined as the lower plane 709. The car top beam 705 is located in the middle of the first side beam 706 and the second side beam 707, connecting the first side beam 706 and the second side beam 707. The car top beam 705 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 panel 710 covers the electrical component installation space 712. The bottom area of ​​the main unit base recess 704 is smaller than the area of ​​the first space 711.

[0089] like Figure 14 As shown, when the elevator car moves upward to its limit position, the lower plane of the main unit base recess 704 protrudes into the upper plane of the elevator car top. Specifically, the main unit base recess 704 protrudes into the first space 711 and can move infinitely closer to the lower plane 709.

[0090] The traditional matching relationship between the main machine base and the elevator car top is as follows: when the elevator car moves upward to the limit position, the lowest plane of the top structure of the shaft that coincides with the projection plane of the car is misaligned with the upper plane 708 of the car top in height. That is, the height of the bottom surface of the existing main machine base is always higher than the height of the upper plane 708 of the car top.

[0091] Unlike traditional main unit bases, the bottom surface of the recessed portion 704 of the elevator's main unit base protrudes into the upper plane of the elevator car top. Therefore, when the elevator car moves upward to its limit position, the height of the lowest surface of the main unit base is lower than the height of the upper plane 708 of the car top. This design reduces the minimum top floor height requirement of the elevator. Furthermore, the width of the shaft top structure recessed into the lower plane of the elevator car top, plus the width of the two side beams of the car top, equals the minimum maximum width of the car. Since the width of the recessed portion 704 of the main unit base is smaller than that of the main unit, this main unit base achieves the minimum maximum car width.

[0092] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0093] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A front column of a frame, characterized in that, It includes a column body (301) and a cover plate (302), wherein the column body (301) has an L-shaped structure; the column body (301) and the cover plate (302) are detachably connected by interlocking toothed structures; After the column body (301) and the cover plate (302) are combined, a groove cavity (303) is formed inside.

2. The front column of the frame according to claim 1, characterized in that, The column body (301) is provided with a first toothed connecting surface (3015), and the cover plate (302) is provided with a second toothed connecting surface (3021). The first toothed connecting surface (3015) and the second toothed connecting surface (3021) cooperate with each other.

3. The front column of the frame according to claim 1, characterized in that, The column body (301) includes a protective plate (30191); the cover plate (302) is provided with a third bolt hole guide groove (3022) and a fourth bolt hole guide groove (3023); A screw protection groove (3016) is formed between the protective plate (30191) and the first toothed connecting surface (3015), and the protective plate (30191) is located between the screw protection groove (3016) and the wire groove cavity (303).

4. The front column of the frame according to claim 1, characterized in that, The column body (301) includes a third splicing nut groove (3018) and a third sealing plate or glass mounting groove (3019); The third splicing nut groove (3018), the third sealing plate or glass mounting groove (3019), and the wire groove cavity (303) are arranged in sequence.

5. The front column of the frame according to claim 1, characterized in that, The column body (301) also includes a third anti-fastener rotation limiting groove (3013), a fourth anti-fastener rotation limiting groove (3014), and a second installation and splicing positioning hole (3017); the third anti-fastener rotation limiting groove (3013), the fourth anti-fastener rotation limiting groove (3014), and the second installation and splicing positioning hole (3017) are all connected to the wire groove cavity (303); The third anti-fastener rotation limiting groove (3013) and the fourth anti-fastener rotation limiting groove (3014) are arranged symmetrically, and the second installation and splicing positioning hole (3017) is set at the corner of the column body (301).

6. The front column of the frame according to claim 5, characterized in that, The column body (301) includes a first bolt hole guide groove (3011) and a second bolt hole guide groove (3012); The position of the first bolt hole guide groove (3011) corresponds to the position of the third anti-fastener rotation limiting groove (3013), and the position of the second bolt hole guide groove (3012) corresponds to the position of the fourth anti-fastener rotation limiting groove (3014).

7. An elevator, characterized in that, Includes the front column of the frame as described in any one of claims 1 to 6.

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