A home elevator and weight balancing system

Abstract

This invention relates to the field of elevator weight balancing technology, and discloses a home elevator and weight balancing system. The guide rail assembly is fixed inside the elevator shaft using a clamping and fixing component. The clamping and fixing component includes a connecting seat assembly fixed to the rear wall of the elevator shaft and a sleeve assembly fitted onto the connecting seat assembly. The sleeve frame of the sleeve assembly is provided with a clamping component and a locking component driven by a screw. A lifting counterweight assembly slides between two symmetrical sets of parallel guide rail assemblies. This invention improves the installation speed of multiple guide rail units and reduces installation difficulty by synchronously driving the clamping and locking components with a screw. It also facilitates the individual replacement of damaged units during later maintenance, avoiding the drawbacks of traditional welded structures requiring overall replacement, thus reducing maintenance costs. The guide rail assembly of this invention uses multiple guide rail units connected vertically by the clamping and fixing component. The axial offset of adjacent guide rail units is ≤0.3mm, and the radial tilt angle is ≤0.1°, significantly reducing splicing errors.

Description

Technical Field

[0001] This invention relates to the field of elevator weight balancing technology, specifically to a home elevator and its weight balancing system. Background Technology

[0002] In elevator weight balancing systems, the connection stability between the guide rails and the elevator shaft, as well as the guiding accuracy of the guide rails themselves, directly affect the smooth sliding of the lifting counterweight assembly. Traditional technologies have the following drawbacks:

[0003] The guide rail assembly has low installation accuracy and large splicing error.

[0004] Traditional guide rails often use single-section fixing or simple bolt splicing. The joints between adjacent guide rails are prone to axial misalignment (often with a deviation of 2-3mm) or radial tilt (angle deviation >1°). This splicing error causes jamming when the lifting counterweight component slides, and may even cause rigid friction between the guide rail and the lifting counterweight component. This not only increases operating noise (>70dB) but also accelerates component wear and shortens service life.

[0005] The installation of guide rail assemblies is cumbersome, increasing construction difficulty. Furthermore, poor fixation of the guide rail assemblies can cause the lifting counterweight assembly to deviate from its sliding trajectory, resulting in wobbling. Additionally, disassembly and replacement are difficult during later maintenance, increasing repair costs. Therefore, we have introduced a home elevator and weight balancing system. Summary of the Invention

[0006] The purpose of this invention is to provide a home elevator and a weight balancing system to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A weight balancing system includes two sets of symmetrical parallel guide rail assemblies, the guide rail assemblies being fixed in an elevator shaft by a clamping and fixing assembly;

[0009] The clamping and fixing assembly includes a connecting seat assembly fixed to the rear wall of the elevator shaft and a sleeve assembly sleeved on the connecting seat assembly. The sleeve frame of the sleeve assembly is provided with a clamping assembly and a locking assembly driven by a screw.

[0010] A lifting counterweight assembly slides between two sets of symmetrical parallel guide rail assemblies.

[0011] The guide rail assembly includes several groups of guide rail units that are fixed vertically using a sleeve assembly;

[0012] After the screw is tightened, the clamping assembly fixes the socket frame onto the connecting seat assembly, and at the same time, the locking assembly locks one end of the guide rail unit onto the socket frame.

[0013] Preferably, the connecting seat assembly includes a mounting seat that is bolted to the rear wall of the elevator shaft and a T-shaped insert integrally formed on one side of the front end of the mounting seat, wherein the T-shaped insert is inserted into the insertion groove in the socket frame.

[0014] Preferably, the inner center of the socket frame is provided with a mounting groove communicating with the insertion slot, and the inner center of the mounting groove is provided with a vertical plate;

[0015] The clamping assembly includes a slider that slides centrally inside the mounting groove, horizontal bars that are set vertically inside the mounting groove, a rotating cylinder sleeved on the outside of the horizontal bars, a clamping cylinder fixed at both ends of the rotating cylinder by connecting arms, and a U-shaped frame centrally set inside the rotating cylinder.

[0016] The slider is provided with two sets of inclined grooves, and the pins inside the U-shaped frame pass through the corresponding inclined grooves.

[0017] The screw passes through a pre-drilled hole in the middle of the vertical plate, the slider has an internal threaded hole in the middle for screwing the screw, and the T-shaped insert has an insertion hole on the inner side for inserting the screw.

[0018] Preferably, a return spring sleeved on the outside of the screw is connected between the slider and the vertical plate.

[0019] Preferably, the clamping assembly includes vertical rods symmetrically arranged front and back inside the mounting groove, a gear fixed in the middle of the vertical rods, a first horizontal rack fixed to the front and back side walls of the slider, a vertical clamping plate located inside the socket frame, and a second horizontal rack arranged on the front and back sides of the middle of the vertical clamping plate.

[0020] The gear meshes between a first horizontal rack and a second horizontal rack on the same side.

[0021] Preferably, the guide rail unit includes a vertical connecting plate, a protruding plate disposed at the front end of the vertical connecting plate, and a vertical U-shaped groove seat fixed inside the protruding plate;

[0022] The inner side of the socket frame is symmetrically provided with slots for inserting one end of the vertical connecting plate, and the vertical clamping plate has two sets of square protrusions arranged vertically on its side. The two ends of the vertical connecting plate are provided with square inner grooves for engaging the square protrusions.

[0023] Preferably, the lifting counterweight assembly includes a lifting frame, several sets of counterweight blocks arranged in the limiting groove inside the lifting frame, steel rope guide wheels symmetrically arranged on both sides of the top of the limiting groove, U-shaped slides symmetrically fixed on the upper and lower sides of the lifting frame, and two sets of upper and lower rollers arranged in the middle of the side of the lifting frame.

[0024] The U-shaped slide is engaged on the outside of the vertical U-shaped groove seat, and the roller is in close contact with the inner wall of the vertical U-shaped groove seat.

[0025] In addition, to achieve the above objectives, the present invention also provides a home elevator, including the aforementioned weight balancing system.

[0026] Compared with the prior art, the beneficial effects of the present invention are: the present invention improves the installation speed of multiple guide rail units and reduces the installation difficulty by synchronously driving the clamping and locking components with screws. The detachable connection between the guide rail unit and the clamping and fixing components facilitates the individual replacement of damaged units during later maintenance, avoiding the disadvantage of the traditional welded structure requiring overall replacement and reducing maintenance costs.

[0027] The clamping assembly's clamping cylinder is tightly attached to the T-shaped insert, and the square protrusion of the clamping assembly is inserted into the square inner groove of the vertical docking plate, forming a "double lock". This improves the connection rigidity between the guide rail assembly and elevator shaft 1, avoids displacement of the guide rail assembly caused by vibration, effectively suppresses lateral swaying, and ensures that the verticality error of the lifting counterweight assembly is ≤0.5mm / m, and the operating noise is reduced to ≤55dB.

[0028] The guide rail assembly of this invention uses multiple sets of guide rail units connected vertically by clamping and fixing components. The upper and lower ends of the vertical U-shaped groove seat are in close contact, and the slot of the sleeve frame positions the vertical connecting plate, so that the axial offset of adjacent guide rail units is ≤0.3mm and the radial tilt angle is ≤0.1°, which significantly reduces splicing error. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0030] Figure 2 This is a three-dimensional structural diagram of the assembly of the clamping and fixing component, the guide rail component, and the lifting counterweight component of the present invention;

[0031] Figure 3 This is an exploded structural diagram of the assembly of the guide rail unit, connecting seat assembly, sleeve assembly and lifting counterweight assembly of the present invention;

[0032] Figure 4 This is a three-dimensional structural diagram of the connector assembly of the present invention;

[0033] Figure 5 This is a three-dimensional structural diagram of the initial state of the socket component of the present invention;

[0034] Figure 6 This is a schematic diagram of the gear mounting structure of the present invention;

[0035] Figure 7 This is an exploded structural diagram of the clamping assembly of the present invention;

[0036] Figure 8 This is a three-dimensional structural diagram of the clamping assembly of the present invention;

[0037] Figure 9This is a three-dimensional structural diagram of the connection between the second horizontal rack and the vertical clamping plate of the present invention;

[0038] Figure 10 This is an exploded structural diagram of the assembly of the socket component of the present invention;

[0039] Figure 11 For the present invention Figure 10 A schematic diagram of the three-dimensional structure from another perspective;

[0040] Figure 12 This is a schematic diagram showing the connection between the screw, clamping assembly, and locking assembly of the present invention;

[0041] Figure 13 For the present invention Figure 12 A schematic diagram of the three-dimensional structure from another perspective;

[0042] Figure 14 For the present invention Figure 5 A schematic diagram of the three-dimensional structure from another perspective;

[0043] Figure 15 This is a three-dimensional structural diagram of the guide rail unit of the present invention;

[0044] Figure 16 For the present invention Figure 15 A schematic diagram of the three-dimensional structure from another perspective;

[0045] Figure 17 This is a three-dimensional structural diagram of the lifting counterweight assembly of the present invention;

[0046] Figure 18 This is a three-dimensional structural diagram of the connection between the lifting counterweight assembly and the guide rail assembly of the present invention;

[0047] Figure 19 This is a three-dimensional structural diagram of the clamping and fixing component of the present invention assembled with the upper and lower guide rail units;

[0048] Figure 20 For the present invention Figure 19 A cross-sectional structural diagram.

[0049] In the picture:

[0050] 1. Elevator shaft;

[0051] 2. Install and fix the components;

[0052] 201. Connector assembly; 2011. Mounting base; 2012. Bolt; 2013. T-shaped insert; 2014. Socket hole;

[0053] 202. Socket assembly; 20201. Socket frame; 20202. Insertion slot; 20203. Slot; 20204. Vertical clamping plate; 20205. Screw; 20206. Clamping cylinder; 20207. Mounting slot; 20208. Vertical plate; 20209. Gear; 20210. Vertical rod; 20211. Connecting arm; 20212. Rotary cylinder; 20213. U-shaped frame; 20214. Horizontal rod; 20215. Pin; 20216. Slider; 20217. Internal threaded hole; 20218. First horizontal rack; 20219. Inclined groove; 20220. Return spring; 20221. Clearance through groove; 20222. Second horizontal rack; 20223. Square protrusion;

[0054] 3. Guide rail assembly; 301. Guide rail unit; 3011. Vertical mating plate; 3012. Protruding plate; 3013. Vertical U-shaped groove seat; 3014. Square inner groove;

[0055] 4. Lifting counterweight assembly; 401. Lifting frame; 402. Counterweight block; 403. Limiting groove; 404. Steel rope guide wheel; 405. U-shaped slide; 406. Roller. Detailed Implementation

[0056] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] Example:

[0058] Please see Figure 1-20 The present invention provides a technical solution:

[0059] A weight balancing system includes two sets of symmetrical parallel guide rail assemblies 3, which are fixed in the elevator shaft 1 by clamping and fixing assemblies 2.

[0060] The clamping and fixing assembly 2 includes a connecting seat assembly 201 fixed to the rear wall of the elevator shaft 1 and a sleeve assembly 202 sleeved on the connecting seat assembly 201;

[0061] The connecting seat assembly 201 includes a mounting seat 2011 fixed to the rear wall of the elevator shaft 1 by bolts 2012 and a T-shaped insert 2013 integrally formed on one side of the front end of the mounting seat 2011. The T-shaped insert 2013 is inserted into the insertion groove 20202 in the socket frame 20201.

[0062] The vertical width of the front end of the T-shaped insert 2013 is the same as the vertical width of the insertion groove 20202. The horizontal thickness of the front end of the T-shaped insert 2013 is less than the horizontal width of the inner wall of the insertion groove 20202. In this way, after the screw 20205 is tightened, the upper and lower clamping cylinders 20206 of the clamping assembly can be tightly attached to the inner wall of the front end of the T-shaped insert 2013, thereby achieving the clamping and fixing of the T-shaped insert 2013 and the socket frame 20201.

[0063] The socket frame 20201 of the socket assembly 202 is provided with a clamping assembly and a locking assembly driven by a screw 20205;

[0064] The inner center of the socket frame 20201 is provided with an installation groove 20207 that communicates with the insertion groove 20202, and the inner center of the installation groove 20207 is provided with a vertical plate 20208.

[0065] The clamping assembly includes a slider 20216 that slides centrally inside the mounting groove 20207, a horizontal bar 20214 that is vertically arranged inside the mounting groove 20207, a rotating cylinder 20212 that is sleeved on the outside of the horizontal bar 20214, a clamping cylinder 20206 that is fixed at both ends of the rotating cylinder 20212 by connecting arms 20211, and a U-shaped frame 20213 that is centrally arranged inside the rotating cylinder 20212.

[0066] The upper and lower dimensions of slider 20216 are consistent with the upper and lower inner wall dimensions of mounting groove 20207.

[0067] The slider 20216 is provided with two sets of inclined grooves 20219, and the pin 20215 inside the U-shaped frame 20213 passes through the corresponding inclined groove 20219.

[0068] The screw 20205 passes through the reserved hole in the middle of the vertical plate 20208. The slider 20216 has an internal threaded hole 20217 in the middle for screwing the screw 20205. The T-shaped insert 2013 has an insertion hole 2014 on the inner side for inserting the screw 20205.

[0069] A return spring 20220, which is sleeved on the outside of the screw 20205, is connected between the slider 20216 and the vertical plate 20208.

[0070] The clamping assembly includes vertical rods 20210 symmetrically arranged inside the mounting groove 20207, a gear 20209 fixed in the middle of the vertical rods 20210, a first horizontal rack 20218 fixed to the front and rear side walls of the slider 20216, a vertical clamping plate 20204 located inside the socket frame 20201, and a second horizontal rack 20222 arranged on the front and rear side edges of the middle of the vertical clamping plate 20204;

[0071] Gear 20209 meshes between the first horizontal rack 20218 and the second horizontal rack 20222 on the same side;

[0072] The upper and lower dimensions of the second horizontal rack 20222 are consistent with the upper and lower inner wall dimensions of the mounting groove 20207, and the front and rear sets of the second horizontal rack 20222 are respectively in close contact with the front and rear inner walls of the mounting groove 20207.

[0073] The vertical clamping plate 20204 has a clearance groove 20221 in the middle. The clearance groove 20221 is used to allow the screw 20205 to pass, so that the screw 20205 can be loosened or tightened by using an electric socket wrench.

[0074] Advantages of the collaborative design of clamping and fixing component 2:

[0075] The reliability of dual fixation: The screw 20205 synchronously drives the clamping assembly to fix the T-shaped insert 2013 of the connecting seat assembly 201 and the vertical docking plate 3011 of the clamping assembly to fix the guide rail unit 301. In one operation, the rigid fixation of "connecting seat assembly 201-sleeve frame 20201-guide rail assembly 3" is achieved, avoiding the risk of loosening caused by traditional step-by-step fixation and improving the connection strength.

[0076] Adaptive adjustment capability: The clearance fit between the T-shaped insert 2013 and the insertion slot 20202, combined with the swing clamping of the clamping cylinder 20206, can accommodate an installation error of ±3mm, reducing the accuracy requirements for elevator shaft wall construction.

[0077] Quick disassembly and maintenance: When the screw 20205 is rotated in the reverse direction, the return spring 20220 pushes the slider 20216 to reset, and the clamping assembly and the locking assembly are released simultaneously. The disassembly and assembly time of a single guide rail unit 301 is reduced from the traditional 30 minutes to 5 minutes.

[0078] A lifting counterweight assembly 4 is slidably connected between two sets of symmetrical parallel guide rail assemblies 3;

[0079] The lifting counterweight assembly 4 includes a lifting frame 401, several sets of counterweight blocks 402 set in the limiting groove 403 inside the lifting frame 401, steel rope guide wheels 404 symmetrically arranged on both sides of the top of the limiting groove 403, U-shaped slide blocks 405 symmetrically fixed on the side of the lifting frame 401, and two sets of upper and lower rollers 406 set in the middle of the side of the lifting frame 401.

[0080] The U-shaped slide 405 is engaged on the outside of the vertical U-shaped groove 3013, and the roller 406 is in close contact with the inner wall of the vertical U-shaped groove 3013.

[0081] The guide rail assembly 3 includes several groups of guide rail units 301 that are fixed vertically by means of a sleeve assembly 202;

[0082] The guide rail unit 301 includes a vertical connecting plate 3011, a protruding plate 3012 disposed at the front end of the vertical connecting plate 3011, and a vertical U-shaped groove seat 3013 fixed inside the protruding plate 3012.

[0083] The inner side of the socket frame 20201 is symmetrically provided with slots 20203 for inserting one end of the vertical connecting plate 3011, and the vertical clamping plate 20204 has two sets of square protrusions 20223 arranged vertically on the side. The two ends of the vertical connecting plate 3011 are provided with square inner grooves 3014 for engaging the square protrusions 20223.

[0084] Modular and guiding advantages of guide rail assembly 3

[0085] Modular splicing flexibility: The guide rail unit 301 is connected vertically through the socket component 202, and the total length can be flexibly adjusted according to the height of the elevator shaft 1 (suitable for shafts of 10-100m).

[0086] High-precision guiding structure: The nested cooperation between the vertical U-shaped groove seat 3013 and the U-shaped slide 405, combined with the lateral limiting of the roller 406, ensures that the sliding verticality error of the lifting counterweight assembly 4 is ≤0.5mm / m, avoiding jamming or uneven wear and extending the service life of the components.

[0087] After the screw 20205 is tightened, the clamping assembly fixes the socket frame 20201 onto the connecting seat assembly 201, and at the same time, the locking assembly locks one end of the guide rail unit 301 onto the socket frame 20201.

[0088] In addition, to achieve the above objectives, the present invention also provides a home elevator, including a weight balancing system.

[0089] Specifically, when using it:

[0090] Installation and fixing of clamping and fixing assembly 2 and guide rail assembly 3:

[0091] The connection between the connecting seat assembly 201 and the socket assembly 202: The mounting seat 2011 is fixed to the rear wall of the elevator shaft 1 by bolts 2012 to form a basic connection structure. The T-shaped plug 2013 of the connecting seat assembly 201 is inserted into the plug groove 20202 of the socket frame 20201.

[0092] Double fixing driven by screw 20205: When screw 20205 is tightened, since screw 20205 is screwed into the internal threaded hole 20217, it drives the slider 20216 to move along the mounting groove 20207 towards the vertical plate 20208 (compressing the return spring 20220), and at the same time, it causes screw 20205 to be inserted into the insertion hole 2014 of T-shaped insert 2013.

[0093] Clamping assembly action: The inclined groove 20219 of the slider 20216 pushes the pin 20215 inside the U-shaped frame 20213, causing the rotating drum 20212 to rotate around the horizontal bar 20214, which drives the upper and lower assembly clamping cylinders 20206 to move closer to each other until the clamping cylinder 20206 is in close contact with the inner side wall of the front end of the T-shaped insert 2013, thus fixing the socket frame 20201 and the connecting seat assembly 201.

[0094] Action of the clamping component: The first horizontal rack 20218 of the slider 20216 engages with the drive gear 20209 to rotate. The gear 20209 drives the second horizontal rack 20222 to move, so that the vertical clamping plate 20204 approaches the guide rail unit 301. The square protrusion 20223 is engaged in the square inner groove 3014 of the vertical docking plate 3011, and the vertical clamping plate 20204 is in close contact with the inner wall of the vertical docking plate 3011, fixing the guide rail unit 301 in the slot 20203 of the socket frame 20201.

[0095] Balance adjustment of lifting counterweight assembly 4:

[0096] The guiding function of the guide rail assembly 3: Multiple guide rail units 301 are fixed vertically by the sleeve assembly 202. The lower end of the upper vertical U-shaped groove seat 3013 contacts the upper end of the lower vertical U-shaped groove seat 3013 to form a symmetrical parallel guide rail assembly 3. The vertical U-shaped groove seat 3013 provides a sliding track for the lifting counterweight assembly 4.

[0097] Sliding and balancing of the lifting counterweight assembly 4: The lifting frame 401 is secured to the outside of the vertical U-shaped groove seat 3013 by the U-shaped slide 405, and the roller 406 is in close contact with the inner wall of the vertical U-shaped groove seat 3013 to ensure smooth sliding; the overall weight is adjusted by adding or removing the counterweight block 402 in the limit groove 403, and the steel rope guide wheel 404 guides the steel rope to connect to the elevator car, so as to achieve weight balance between the car and the counterweight assembly and reduce the energy consumption of elevator drive.

[0098] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A weight balancing system, comprising two symmetrical sets of parallel guide rail assemblies, characterized in that: The guide rail assembly is fixed inside the elevator shaft using a clamping and fixing assembly; The clamping and fixing assembly includes a connecting seat assembly fixed to the rear wall of the elevator shaft and a sleeve assembly sleeved on the connecting seat assembly. The sleeve frame of the sleeve assembly is provided with a clamping assembly and a locking assembly driven by a screw. A lifting counterweight assembly slides between two sets of symmetrical parallel guide rail assemblies. The guide rail assembly includes several groups of guide rail units that are fixed vertically using a sleeve assembly; After the screw is tightened, the clamping assembly fixes the socket frame on the connecting seat assembly, and at the same time, the locking assembly locks one end of the guide rail unit on the socket frame. The connecting seat assembly includes a mounting seat that is bolted to the rear wall of the elevator shaft and a T-shaped insert integrally formed on one side of the front end of the mounting seat. The T-shaped insert is inserted into the insertion groove in the socket frame. The inner center of the socket frame is provided with an installation groove that communicates with the insertion slot, and the inner center of the installation groove is provided with a vertical plate. The clamping assembly includes a slider that slides centrally inside the mounting groove, horizontal bars that are set vertically inside the mounting groove, a rotating cylinder sleeved on the outside of the horizontal bars, a clamping cylinder fixed at both ends of the rotating cylinder by connecting arms, and a U-shaped frame centrally set inside the rotating cylinder. The slider is provided with two sets of inclined grooves, and the pins inside the U-shaped frame pass through the corresponding inclined grooves. The screw passes through the reserved hole in the middle of the vertical plate, the slider has an internal thread hole in the middle for screwing the screw, and the T-shaped insert has an insertion hole on the inner side for inserting the screw. A return spring sleeved on the outside of the screw is connected between the slider and the vertical plate; The clamping assembly includes vertical rods symmetrically arranged front and back inside the mounting groove, a gear fixed in the middle of the vertical rods, a first horizontal rack fixed to the front and back side walls of the slider, a vertical clamping plate located inside the socket frame, and a second horizontal rack arranged on the front and back sides of the middle of the vertical clamping plate. The gear meshes between a first horizontal rack and a second horizontal rack on the same side.

2. The weight balancing system according to claim 1, characterized in that: The guide rail unit includes a vertical connecting plate, a protruding plate at the front end of the vertical connecting plate, and a vertical U-shaped groove seat fixed inside the protruding plate. The inner side of the socket frame is symmetrically provided with slots for inserting one end of the vertical connecting plate, and the vertical clamping plate has two sets of square protrusions arranged vertically on its side. The two ends of the vertical connecting plate are provided with square inner grooves for engaging the square protrusions.

3. A weight balancing system according to claim 2, characterized in that: The lifting counterweight assembly includes a lifting frame, several sets of counterweight blocks set in the limiting groove inside the lifting frame, steel rope guide wheels symmetrically arranged on both sides of the top of the limiting groove, U-shaped slides symmetrically fixed on the upper and lower sides of the lifting frame, and two sets of upper and lower rollers set in the middle of the side of the lifting frame. The U-shaped slide is engaged on the outside of the vertical U-shaped groove seat, and the roller is in close contact with the inner wall of the vertical U-shaped groove seat.

4. A home elevator, characterized in that, Includes the weight balancing system as described in any one of claims 1-3.

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