CN114873417A - Ultra-shallow pit low top layer steel belt traction home elevator - Google Patents

Abstract

The invention discloses an ultra-shallow pit low-top-layer steel belt traction home elevator, and relates to the technical field of home elevators. Wherein, this short top layer steel band in ultra-shallow pit tows home use elevator, includes: the device comprises a shaft and a pit arranged at the bottom of the shaft; car guide rail brackets are fixedly arranged on two sides of the shaft respectively, car guide rails are arranged on the two car guide rail brackets respectively, and the car guide rails are fixedly arranged on two sides of the car frame respectively; the top of the car frame of the car is provided with a car top wheel, the tops of the two rows of car guide rails are provided with a car transition wheel beam and a fixing frame of a car rope head, and a car rope head combination is arranged on the fixing frames of the car transition wheel beam and the car rope head; further comprising: car transition wheels and wheel beams. The invention solves the problems that in the prior art, a household elevator is dragged by a steel wire rope, and when the depth of a pit and the height of a top layer are not enough with standard requirements, the floor wheel or the top wheel of a car occupies a large space, and the steel wire rope is not suitable for use.

Description

Ultra-shallow pit low top steel belt traction home elevator

technical field

The invention relates to the technical field of home elevators, in particular to an ultra-shallow pit and low top steel belt traction home elevator.

Background technique

The 3rd and 4th floor villas and townhouses in the city are generally equipped with home elevator shafts. Due to the limitation of civil structure, the bottom pit of home elevators is generally shallow. In our rural areas, with the change of local policies, the opening of rural house renovation, the demand for elevators for household villas is also increasing, and the renovation of rural houses is subject to government policy regulations, and there are restrictions on the area and height of buildings, so rural Villa home elevators are generally not high on the top floor.

Conventional household elevators use wire rope traction to drive the elevator, that is, the elevator in which the wire hoisting rope is driven by the friction force of the driving wheel rope groove of the main engine. The diameter of such an elevator is at least 25 times the diameter of the wire rope. The top floor of the hoistway is high and generous, and can be designed as a car top wheel; the depth of the well bottom pit is large, and can be designed as a car bottom wheel. When the height of the top layer of the shaft and the depth of the pit are not sufficient, it is more difficult to use the wire rope traction drive, and it may not be possible.

In the prior art, domestic elevators use steel wire rope traction, the minimum wire rope is φ6, and the diameter of the guide wheel is at least 150mm. At this time, if the car bottom wheel is used, the depth of the pit is at least 350mm; if the car top wheel is used, in order to make passengers ride the elevator To feel comfortable, the clear height of the car is at least 2100mm, and the clear height of the hall car door is 2000mm. 2900mm, so when the depth of the pit and the height of the top layer are not enough to meet the standard requirements, because the car bottom wheel or car top wheel takes up a lot of space, the choice of wire rope is not suitable. For the above-mentioned problems, no effective solution has been proposed yet.

SUMMARY OF THE INVENTION

The purpose of the invention is to provide an ultra-shallow pit low top steel belt traction household elevator to solve the above problems existing in the prior art.

Technical scheme: A home elevator with ultra-shallow pit and low top steel belt traction, including: a hoistway, and a pit arranged at the bottom of the hoistway; The car guide rail brackets are respectively provided with car guide rails, and the car guide rails are respectively fixed on both sides of the car frame; the top of the car frame is provided with a car top wheel, and the top of the second row of the car guide rails is provided The car transition wheel beam and the fixing frame of the car rope head are provided, and the car rope head combination is arranged on the fixing frame of the car transition wheel beam and the car rope head; it also includes: the car transition wheel and the wheel beam, One end of the car transition wheel and the wheel beam rests on the fixing frame of the car transition wheel beam and the rope head of the car, and the other end is placed on the traction machine frame, and the traction machine frame is provided with Steel belt type traction machine; the traction machine frame is arranged on the top of two rows of counterweight guide rails, and the two rows of counterweight guide rails are fixedly arranged on both sides of the counterweight frame through the counterweight guide rail brackets, and the counterweight frame The upper beam is provided with a counterweight wheel; the bottom of the traction machine frame is provided with a counterweight rope head fixing frame, and the counterweight rope head fixing frame is provided with a counterweight rope head combination; it also includes: at least two traction Traction steel belts, one end of at least two of the traction steel belts goes around the car rope head assembly and then goes down to the car top wheel, and then goes up around the car transition wheel to the The steel belt type traction machine, after bypassing the steel belt type traction machine to the counterweight wheel, and then bypassing the counterweight wheel to the counterweight rope head combination, and finally at the counterweight rope fixed on the head assembly.

Preferably, the car frame includes: two car frame vertical beams, a car frame upper beam and a car frame lower beam, the car frame upper beam and the car frame lower beam are respectively located on the upper and lower sides of the two car frame vertical beams On both sides, the two car frame vertical beams are located on both sides of the car.

Preferably, the center lines of the two rows of the car guide rails and the center lines of the two car frame vertical beams are located on a uniform straight line.

Preferably, two first car guide shoes are provided at the upper ends of the two car frame vertical beams near the car frame upper beam; two second car guide shoes are provided at the lower ends of the two car frame vertical beams near the car frame lower beam. Car guide shoe.

Preferably, a safety gear is provided on the lower beam of the car frame, the jaws of the safety gear are aligned with the working surface of the car guide rail, and the jaw is 3-4 mm away from the working surface of the car guide rail, so The safety gear is provided with a safety pull rod, and the other end of the safety pull rod is connected with the car frame vertical beam.

Preferably, a car door sill is arranged on the bottom of the car, and a door operator is arranged on the top of the car on the door opening side of the car, and the door operator is connected with the upper end of the car door through fasteners. The lower end is equipped with a door slider that is stuck in the groove on the car door sill. The car door can move horizontally along the direction of the groove on the car door sill with the door opening and closing commands. The beam at the lower end of the station door is provided with a floor door sill, and the beam at the upper end of the station door of each floor inside the well is provided with floor door devices, the floor door devices are connected with the upper part of the hall door through fasteners, and the hall door The lower part is provided with a door slider that is clamped in the groove on the landing door sill, and the hall door can move horizontally along the direction of the groove on the hall door sill along with the door opening and closing instructions.

Preferably, a speed limiter is set on the fixed frame of the car transition wheel beam and the car rope head, the speed limiter is close to one of the car guide rails, and is located directly above the safety rod, the speed limiter is A tensioning device is installed on the position where the speed limiter is projected in the bottom pit, a speed limiter wire rope is arranged on the speed limiter, and one end of the speed limiter wire rope is fixed on the safety rod, and goes up around the safety rod. The wheel of the speed limiter goes down to the tensioning device in the pit, bypasses the wheel of the tensioning device, goes up, and is finally fixed on the safety rod.

Preferably, the upper and lower parts of the straight beams on both sides of the counterweight frame are provided with four counterweight guide shoes facing the counterweight guide rail, and a first buffer is provided at the center of the two rows of the counterweight guide rail in the pit. and a second buffer is arranged in the center of the two rows of the car guide rails in the pit.

Preferably, a limit switch is provided on the car guide rail and between the top of the hoistway and the bottom pit; a limit striker is arranged on the car frame vertical beam, and the limit striker is connected to the The limit switch constitutes a limit device to prevent the car from rushing to the top and the bottom of the pier.

Preferably, each floor of the hoistway is provided with a leveling magnetic isolation plate for leveling in the hoistway and on one side of the car guide rail, and a leveling switch is provided on the car frame vertical beam to A leveling device is formed to detect the position of the floor where the car is parked.

Beneficial effect: In the embodiment of the present application, a steel belt type traction drive is adopted, and one end of at least two traction steel belts is passed around the car rope head combination and then wound down to the The car top wheel, and then bypass the car transition wheel upward to the steel belt type traction machine, bypass the steel belt type traction machine and then to the counterweight wheel, and then bypass the counterweight The wheel arrives at the counterweight rope head assembly, and finally is fixed on the counterweight rope head assembly, so as to achieve the purpose of driving the steel belt, thereby realizing the technical effect of reducing the size of components and saving space, thereby solving the problem of existing Technical household elevators use steel wire rope traction, the minimum steel wire rope is φ6, then the minimum diameter of the guide wheel is 150mm, if the car bottom wheel is used at this time, the depth of the pit is at least 350mm; if the car top wheel is used, in order to make passengers feel comfortable riding the elevator , the clear height of the car is at least 2100mm, and the clear height of the hall car door is 2000mm. (If the clear height of the car is 2000mm and the height of the hall car door is 1900mm, it will be more cramped for tall passengers.) At this time, the top floor of the hoistway is at least 2900mm high. Therefore, when the depth of the pit and the height of the top layer are not enough to meet the standard requirements, it is a technical problem that the steel wire rope is not suitable due to the large space occupied by the car bottom wheel or the car top wheel.

Description of drawings

Fig. 1 is the front view schematic diagram of the ultra-shallow pit low top steel belt traction home elevator of the present invention;

Fig. 2 is the side view schematic diagram of the ultra-shallow pit low top steel belt traction home elevator of the present invention;

Fig. 3 is the top view schematic diagram of the ultra-shallow pit low top steel belt traction home elevator of the present invention;

Fig. 4 is the front view of the car of the ultra-shallow pit low top steel belt traction home elevator of the present invention;

Fig. 5 is a side view of the car of the super-shallow pit low top steel belt traction home elevator of the present invention.

Reference signs are: 1. hoistway; 2. pit; 3. car guide rail; 4. car guide rail support; 5. counterweight guide rail; 6. counterweight guide rail support; 7. car frame vertical beam; upper beam; 9, lower beam of car frame; 10, first car guide shoe; 11, car; 12, car door; 13, door machine; 14, hall car door; 15, landing door device; 16, safety Clamp; 17, speed limiter; 18, speed limiter wire rope; 19, tensioning device; 20, car top wheel; 21, car transition wheel; 22, steel belt traction machine; 23, traction machine frame ; 24. Counterweight rope head fixing frame; 25. Counterweight rope head combination; 26. Car transition wheel beam and car rope head fixing frame; 27. Car rope head combination; 28. Traction steel belt; 29 , counterweight wheel; 30, counterweight frame; 31, first buffer; 32, second buffer; 33, leveling switch; 34, leveling magnetic isolation plate; 35, limit hit bow; 36, limit switch; 37, safety lever; 38, car door sill; 39, landing door sill; 40, counterweight guide shoe; 41, second car guide shoe; 42, wheel beam.

Detailed ways

In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only The embodiments are part of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present application.

It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances for the embodiments of the application described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

Furthermore, the terms "installed", "set up", "provided with", "connected", "connected", "socketed" should be construed broadly. For example, it may be a fixed connection, a detachable connection, or a unitary structure; it may be a mechanical connection, or an electrical connection; it may be directly connected, or indirectly connected through an intermediary, or between two devices, elements, or components. internal communication. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

As shown in Figures 1-5, the present application relates to a steel belt traction household elevator with a super shallow pit and a short top floor. The ultra-shallow pit low top steel belt traction household elevator comprises: a hoistway 1, and a pit 2 arranged at the bottom of the hoistway 1; the hoistway 1 refers to a cavity for the car 11 to move up and down, which can ensure smooth space movement. The bottom pit 2 refers to the bottom pit, which can realize the effect of the elevator car moving underground. Car guide rail brackets 4 are respectively fixed on both sides of the hoistway 1, and car guide rails 3 are respectively arranged on the two car guide rail brackets 4, and the car guide rails 3 are respectively fixed on both sides of the car frame; A good guiding effect can be achieved. Further, the car guide rail bracket 4 is fixed on the ring beams on both sides of the hoistway 1 (concrete) with expansion bolts, or is directly welded to the steel ring beams on both sides of the hoistway 1 (steel structure). A good fixing effect can be achieved, thereby ensuring the stability of the structure. The top of the car frame is provided with a car top wheel 20, the top of the two rows of the car guide rails 3 is provided with a car transition wheel beam and a fixing frame 26 for the car rope head, the car transition wheel beam and the car The rope head fixing frame 26 is provided with a car rope head assembly 27;

It also includes: the car transition wheel 21 and the wheel beam 42, one end of the car transition wheel 21 and the wheel beam 42 rests on the car transition wheel beam and the fixing frame 26 of the car rope head, and the other end is placed on the traction On the traction machine frame 23, a steel belt type traction machine 22 is arranged on the traction machine frame 23; the traction machine frame 23 is arranged on the top of two rows of counterweight guide rails 5, and the The heavy guide rails 5 are fixedly arranged on both sides of the counterweight frame 30 through the counterweight guide rail brackets 6, and a counterweight wheel 29 is provided on the upper beam of the counterweight frame 30; the bottom of the traction machine frame 23 is provided with a counterweight rope head A fixing frame 24, the counterweight rope head assembly 25 is arranged on the counterweight rope head fixing frame 24;

It also includes: at least two traction steel belts, one end of the at least two traction steel belts 28 is wound around the car rope head assembly 27, then wound down to the car top wheel 20, and then wound up Pass the car transition wheel 21 to the steel belt traction machine 22, bypass the steel belt traction machine 22 and then to the counterweight wheel 29, and then bypass the counterweight wheel 29 to the The counterweight rope head assembly 25 is finally fixed on the counterweight rope head assembly 25 . The use of steel belts can reduce the diameter of the guide wheel and the transition wheel, and reduce the space occupied by the guide wheel and the transition wheel in the hoistway 1, thereby reducing the requirements for the depth of the pit 2 and the height of the top layer. It is beneficial to reduce the position occupied by the counterweight side, so the size of the car can be appropriately increased, and the comfort of passengers can be improved. Further, the steel belt is in the form of a toothed steel belt or a flat steel belt. The effect of providing a variety of options can be achieved. Preferably, the steel belt is covered with a layer of high-strength polyurethane on the outside of the traction wire rope. It provides protection for the traction wire rope to avoid corrosion. The traction wire rope does not need lubrication during maintenance. When the steel belt is engaged with the wheel, the direct friction of the metal is avoided, and the friction noise is reduced. Preferably, the wrap angle of the steel belt traction machine is greater than or equal to 135°. That is to say, it must be ensured that the angle formed by the connection line between the two tangent points and the center of the traction sheave when the steel belt goes around the traction sheave of the traction machine cannot be less than 135°. The requirements for the steel belt to be wound are relatively high. The steel belt is flat and cannot stand upright. If the steel belt stands upright, the uneven force on the steel belt will deviate from the middle position of the wheel, resulting in undercut wear of the steel belt, increased noise during elevator operation, and smoothness. reduce.

The utility model provides a household elevator that is pulled by an ultra-shallow bottom pit and two short top layers of steel belts, that is, a driving elevator in which a steel belt is used instead of a steel wire rope as a suspension friction mode. The steel belt is made of 8-12 galvanized traction wire ropes covered with a layer of polyurethane. The steel belts used in home elevators are divided into two types: toothed steel belts and flat steel belts. The thickness of the toothed steel belt is 4mm, the thickness of the flat steel belt is 3.5mm, and the diameter of the galvanized traction wire rope inside is 2.15mm. The diameter of the guide wheel is 86mm, which is 42.7% smaller than when using φ6mm wire rope (wheel diameter φ150mm), and 57% smaller than when using φ8mm wire rope (wheel diameter φ200mm), which greatly reduces the guide wheel beam 42, The space occupied by the transition wheel beam 42 .

From the above description, it can be seen that the application has achieved the following technical effects:

In the embodiment of the present application, a steel belt type traction drive is adopted, and one end of at least two traction steel belts 28 is passed around the car rope head assembly 27 and then wound down to the car The top pulley 20, then bypasses the car transition wheel 21 upwards to the steel belt traction machine 22, bypasses the steel belt traction machine 22, then reaches the counterweight wheel 29, and then bypasses The counterweight wheel 29 to the counterweight rope head assembly 25 is finally fixed on the counterweight rope head assembly 25 to achieve the purpose of driving the steel belt, thereby realizing the technology of reducing the size of components and saving space Effect, and then solve the problem that the prior art household elevator adopts traction wire rope traction, the minimum traction wire rope is φ6, then the minimum diameter of the guide wheel is 150mm, if the car bottom wheel is used at this time, the depth of the pit 2 is at least 350mm; The car top wheel 20, in order to make passengers feel comfortable when riding the elevator, the car 11 has a clear height of at least 2100mm, and the hall car door 14 has a clear height of 2000mm. At this time, the height of the top layer of the shaft 1 is at least 2900mm, so when the depth of the pit 2 and the height of the top layer are not standard enough, because the car bottom wheel or car top wheel 20 occupies a large space, it is not suitable to use wire ropes technical problem.

Further, the car frame includes: two car frame vertical beams 7, a car frame upper beam 8 and a car frame lower beam 9, the car frame upper beam 8 and the car frame lower beam 9 are respectively located in the two The car frame vertical beams 7 are located on both sides of the upper and lower sides, and the two car frame vertical beams 7 are located on both sides of the car 11 . Preferably, it is easy to realize and operate by means of standard parts.

Further, the center lines of the two rows of the car guide rails 3 and the center lines of the two car frame vertical beams 7 are located on the same straight line. It can ensure the effect of stabilizing the stable operation of the elevator car.

Further, two first car guide shoes 10 are provided at the upper ends of the two car frame vertical beams 7 near the car frame upper beam 8 ; the lower ends of the two car frame vertical beams 7 are close to the car frame lower beam 9 . Two second car guide shoes 41 are provided. A good guiding effect can be achieved, and a good fixing effect can also be achieved.

Further, a safety gear 16 is provided on the lower beam 9 of the car frame, the jaws of the safety gear 16 are aligned with the working surface of the car guide rail 3 , and the jaws are away from the working surface of the car guide rail 3 . 3-4 mm, the safety gear 16 is provided with a safety pull rod 37 , and the other end of the safety pull rod 37 is connected with the car frame vertical beam 7 . Good safety is ensured to prevent accidents.

Further, a car door sill 38 is arranged on the bottom of the car, and a door operator 13 is arranged on the top of the car on the door opening side of the car, and the door operator 13 is connected with the upper end of the car door 12 by fasteners. The lower end of the car door 12 is equipped with a door slider that is clamped in the groove on the car door sill 38. The car door 12 can be leveled along the direction of the groove on the car door sill 38 with the door opening and closing commands. Movement, the beams at the lower ends of the doorways of each floor station inside the well 1 are provided with floor door sills 39, and the beams at the upper ends of the doorways of each floor station inside the well 1 are provided with floor door devices 15, and the floor door devices 15 pass through The fastener is connected with the upper part of the hall car door 14, and the lower part of the hall car door 14 is provided with a door slider that is stuck in the groove on the landing door sill 39. The hall car door 14 can follow the door opening and closing instructions along the way. The direction of the groove on the hall door sill moves horizontally.

Further, a speed limiter 17 is arranged on the beam of the car transition wheel 21 and the fixing frame of the car rope head. Right above, a tensioning device 19 is installed on the position where the speed limiter 17 is projected in the pit 2 , a speed limiter wire rope 18 is arranged on the speed limiter 17 , and one end of the speed limiter wire rope 18 is installed. It is fixed on the safety rod 37, goes up around the wheel of the speed limiter 17, goes down to the tensioning device 19 in the pit 2, bypasses the wheel of the tensioning device 19, then goes up and finally fixes it on the safety lever 37 . It can achieve good speed limiting and tightening effects, thereby further improving the safety factor of the car.

Further, the upper and lower parts of the straight beams on both sides of the counterweight frame 30 are provided with four counterweight guide shoes 40 facing the counterweight guide rail 5 , and the center position of the counterweight guide rail 5 is two rows in the pit 2 . A first buffer 31 is provided, and a second buffer 32 is provided at the center of the two rows of the car guide rails 3 in the pit 2 . A good buffering effect can be achieved.

Further, a limit switch 36 is arranged on the car guide rail 3 and between the top of the hoistway 1 and the bottom pit 2; a limit striker 35 is arranged on the car frame vertical beam 7, and the limit The position strike bow 35 and the limit switch 36 form a limit device to prevent the car from hitting the top and the bottom of the pier. A good protection effect can be achieved, thereby further improving the safety of the car.

Further, each floor of the hoistway 1 is provided with a leveling magnetic isolation plate 34 for leveling in the hoistway 1 and on one side of the car guide rail 3, and the car frame vertical beam 7 is provided with The leveling switch 33 is used to form a leveling device for detecting the position of the floor where the car is parked. It can achieve the effect of precise positioning of the car, so as to ensure that the car stays at the designated position.

The operation steps of the present invention are as follows:

In shaft 1, set up scaffolding. Then set out the car counterweight and guide rail position. The mounting bracket is connected to the wall of hoistway 1 and fixed with expansion bolts or welding. Then install the car guide rail 3 and the counterweight guide rail 5, connect with the pressure guide plate, and directly adjust. The brackets are welded firmly after the size is calibrated. On the top of the counterweight guide rail 5, there are holes on the top of the two heads, which are arranged at the top, and the erection starts at 350mm from the top of the hoistway. Then, the traction machine frame 23 is erected on the top of the two counterweight guide rails 5, and the two rows of round holes on the top of the frame and the counterweight guide rail 5 are fixed with M8×40 bolts, and then reinforced with 8Kg pressure guide plates and M10×40 bolts. The top of the two car guide rails 3 has holes on the top and the back, which are arranged at the top, and are erected 350mm away from the top of the hoistway to ensure that the tops of the two car guide rails 3 are on the same horizontal plane, and then they are arranged downward one by one.

Then set the fixing frame of the car transition wheel 21 beam and the car rope head on the top of the two car guide rails 3. The fixing frame and the two rows of round holes on the top of the car guide rail 3 are fixed with M8×40 bolts, and then there is a 13Kg pressure guide plate, M12 ×40 bolt reinforcement. The installation position of the car rope head assembly 27 is vertically upward to the appropriate position on the top of the hoistway 1. Use expansion bolts to fix the car rope head assembly 27 with reinforcing channel steel, and connect the reinforcing channel steel to the beam of the car transition wheel 21 and the fixing frame of the car rope head Connect with two M12 studs. The car rope head assembly 27 is installed on the beam of the car transition wheel 21 and the fixing frame of the car rope head. One end of the beam of the car transition wheel 21 is framed on the hoisting machine frame 23, and the other end is framed on the fixing frame of the beam of the car transition wheel 21 and the rope head of the car, and is fixed with M12×40 bolts. A pad is placed on the traction machine frame 23, and the belt traction machine rests on the upper portion of the pad to ensure that it is placed horizontally and fixed with M16 standard parts. The four holes on the counterweight rope head fixing frame 24 are connected with the four holes below the traction machine frame 23 by standard parts M12×40, and the counterweight rope head assembly 25 is fixed on the counterweight rope head fixing frame 24 . The speed limiter 17 is installed on the fixed frame of the transition wheel 21 of the car on the top of the hoistway 1 and the fixed frame of the rope head of the car, and the position is adjusted and fixed.

Then, the car buffer seat and the counterweight buffer seat are installed in the pit 2, the tensioning device 19, and the M10 expansion bolt are fixed, and the car buffer and the counterweight buffer are respectively assembled on the buffer seat.

Then the lower beam is installed in the car guide rail 3 . Splicing the car frame, install the bracket, install the two sides of the beam and fix it with the straight beam. Install the lower beam and the car bottom support. Equipped with safety lifting mechanism. Assemble the bottom of the car and the lower beam. The counterweight guide rail 5 is equipped with a counterweight frame 30, and the steel belt is wound. Connect to the control cabinet and electrical cables in the bottom floor. Slow start the car. Then set out the inner door device 15 of the hoistway 1 . Assemble the car, door loader 13. The speed limiter wire rope 18 is unwound, and the leveling and limit switch 36 devices are installed, and the external call is installed. Commission until the elevator runs comfortably.

The present invention also has the following beneficial effects:

1. Steel belt elevator saves space. When the depth of the hoistway pit and the height of the top floor are not enough to meet the standard requirements, and the design of the wire rope traction elevator is not feasible, the steel belt traction elevator can be selected;

2. The life of the steel belt is longer than that of the steel wire rope, which is 2-3 times that of the traditional steel wire rope;

3. The weight of the steel belt is lighter than that of the steel wire rope, about 20% lighter than the traditional steel wire rope;

4. The steel belt is stronger and more durable than the steel wire rope, and each steel belt contains about 588-1176 high-tension steel wires, which is more than the traditional steel wire rope;

5. The safety of steel belts is stronger, each steel belt can withstand a tensile force of about 3200Kg-6400Kg, each household elevator has at least 2 steel belts, and the safety factor for passengers is at least 12;

6. The steel belt is made of galvanized steel wire covered with high-strength polyurethane, which is more corrosion-resistant than the steel wire rope exposed to the air directly.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above-mentioned embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, These equivalent transformations all belong to the protection scope of the present invention.

Claims (10)

1. an ultra-shallow bottom pit low top steel belt traction household elevator, it is characterized in that, comprise: well, and be arranged at the bottom pit of described well bottom; Described well both sides are fixedly provided with car guide rail support respectively, The two car guide rail brackets are respectively provided with car guide rails, and the car guide rails are respectively fixed on both sides of the car frame; The top of the car frame is provided with a car top wheel, the top of the two rows of the car guide rails is provided with a car transition wheel beam and a fixing frame for the car rope head, and the car transition wheel beam and the car rope head are installed. The fixed frame is provided with a car rope head combination; It also includes: a car transition wheel and a wheel beam, one end of the car transition wheel and the wheel beam rests on the fixed frame of the car transition wheel beam and the car rope head, and the other end is placed on the traction machine frame , the traction machine frame is provided with a steel belt traction machine; The traction machine frame is arranged on the top of two rows of counterweight guide rails, the two rows of counterweight guide rails are fixedly arranged on both sides of the counterweight frame through the counterweight guide rail bracket, and the upper beam of the counterweight frame is provided with a counterweight wheel; the bottom of the traction machine frame is provided with a counterweight rope head fixing frame, and the counterweight rope head fixing frame is provided with a counterweight rope head combination; It also includes: at least two traction steel belts, one end of the at least two traction steel belts goes around the car rope head assembly and then goes down to the car top wheel, and then goes up around the car top wheel. The car transition wheel goes to the steel belt traction machine, bypasses the steel belt traction machine and then goes to the counterweight wheel, and then bypasses the counterweight wheel to the counterweight rope head combination, Finally, it is fixed on the counterweight rope head combination. 2. The ultra-shallow pit low top steel belt traction household elevator according to claim 1, wherein the car frame comprises: two car frame vertical beams, a car frame upper beam and a car frame lower beam, The upper beam of the car frame and the lower beam of the car frame are respectively located on the upper and lower sides of the two vertical beams of the car frame, and the two vertical beams of the car frame are located on both sides of the car. 3. The ultra-shallow pit low top steel belt traction home elevator according to claim 2, wherein the center lines of the two rows of the car guide rails and the center lines of the two car frame vertical beams are located in a unified straight line superior. 4. The ultra-shallow pit low top steel belt traction home elevator according to claim 2, characterized in that, two first car guides are provided at the upper ends of the two described car frame vertical beams near the described car frame upper beams. shoes; two second car guide shoes are arranged at the lower ends of the vertical beams of the two car frames near the lower beams of the car frame. 5 . The ultra-shallow pit and low top steel belt traction home elevator according to claim 4 , wherein a safety gear is provided on the lower beam of the car frame, and the jaws of the safety gear are aligned with the car. 6 . The working surface of the car guide rail, the jaws are 3-4 mm away from the working surface of the car guide rail, the safety gear is provided with a safety pull rod, and the other end of the safety pull rod is connected to the car frame vertical beam. 6 . The ultra-shallow pit low top steel belt traction home elevator according to claim 5 , wherein the car bottom is provided with a car door sill, and the car on the door opening side of the car is on the top. 7 . A door operator is provided, the door operator is connected with the upper end of the car door through fasteners, and the lower end of the car door is equipped with a door slider that is stuck in the groove on the car door sill, and the car door follows the door opening, The door closing command can move horizontally along the direction of the groove on the car door sill. The beam at the lower end of the door of each floor inside the hoistway is provided with the floor door sill, and the beam at the upper end of the door of each floor inside the hoistway is provided with a beam. The landing door device, the landing door device is connected with the upper part of the hall door through fasteners, and the lower part of the hall door is equipped with a door slider stuck in the groove on the landing door sill, and the hall door follows the door opening and closing instructions. It can move horizontally along the direction of the groove on the sill of the hall door. 7. The ultra-shallow pit low top steel belt traction household elevator according to claim 5, wherein a speed limiter is provided on the fixed frame of the transition wheel beam of the car and the rope head of the car, and the limit The speed limiter is close to one of the car guide rails in one row, and is located directly above the safety rod. A tensioning device is installed on the position where the speed limiter is projected in the pit, and a speed limiter is set on the speed limiter. One end of the speed limiter wire rope is fixed on the safety rod, goes up around the wheel of the speed limiter, goes down to the tensioner in the pit, and goes around the wheel of the tensioner Back up and finally fixed on the safety rod. 8 . The ultra-shallow pit and low top steel belt traction home elevator according to claim 4 , wherein the upper and lower parts of the straight beams on both sides of the counterweight frame are configured with four counterweight guide rails facing the counterweight guide rail. 9 . In the heavy guide shoe, a first buffer is arranged at the center of the counterweight guide rails in the two rows in the pit, and a second buffer is arranged at the center of the car guide rails in the two rows in the pit. 9 . The ultra-shallow pit and low top steel belt traction household elevator according to claim 1 , wherein a limit switch is provided on the car guide rail and between the top of the hoistway and the pit. 10 . A limit strike bow is arranged on the vertical beam of the car frame, and the limit strike bow and the limit switch form a limit device to prevent the car from rushing to the top and the bottom of the pier. 10. The ultra-shallow pit low top steel belt traction home elevator according to claim 1, wherein each floor of the hoistway is in the hoistway and is located on one side of the car guide rail is provided with a flat hoistway. A leveling magnetic isolation board for floors, a leveling switch is arranged on the vertical beam of the car frame to form a leveling device, which is used to detect the position of the floor where the car is parked.

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