Elevator tensioning wheel device

Abstract

The utility model discloses an elevator tensioning wheel device, and relates to the technical field of tensioning devices. The tensioning device comprises a straight beam, a main rotating shaft is rotationally arranged in the straight beam, and a tensioning wheel body is fixed on the surface of the main rotating shaft; the L-shaped dust shielding cover is fixed to the top end of the straight beam through a bolt and used for shielding falling dust for the tensioning wheel body, U-shaped notches are formed in the two sides of the top end of the L-shaped dust shielding cover correspondingly, and the two U-shaped notches are used for providing a moving gap for a steel wire rope; a first rotating shaft is rotationally arranged in the hard connecting pipe and the L-shaped dust shielding cover, the hard connecting pipe is fixed to the side end of the first rotating shaft and used for blowing and cleaning the surface of the main rotating shaft, a set of inflating assemblies used for supplying air into the hard connecting pipe is arranged in the L-shaped dust shielding cover, and the inflating assemblies are synchronously driven when the tensioning wheel body rotates; air blowing cleaning can be conducted on the area, making contact with the steel wire rope, in the tensioning wheel body, so that the steel wire rope and the tensioning wheel body can be better connected, and normal connection of the tensioning wheel body and the steel wire rope cannot be hindered.

Description

Technical Field

[0001] The utility model belongs to the technical field of tensioning devices, in particular to an elevator tensioning wheel device. Background Art

[0002] Elevators have been in people's lives for 150 years. Over the past century and a half, the ups and downs of history have changed dramatically, but what remains unchanged is the promise of elevators to improve the quality of human life. Life continues, technology develops, and elevators are also progressing. Over the past 150 years, the material of elevators has changed from black and white to color, and the style has changed from vertical to inclined. In terms of operation and control, there are new innovations - handle switch operation, button control, signal control, collective control, human-machine dialogue, etc., and multiple elevators have also appeared in parallel control and intelligent group control; double-deck elevators have shown the advantages of saving shaft space and improving transportation capacity; the emergence of variable-speed automatic escalators has greatly saved pedestrians' time; sightseeing elevators with different shapes - fan-shaped, triangular, semi-rhombus, semi-circular, and full-circular - have made the vision of passengers no longer blocked.

[0003] After searching, a Chinese patent with patent publication number CN218434375U discloses an elevator tensioning device with excellent noise-proof performance, including a plate, a long hole is opened on the front end outer surface of the plate, a fixing piece is fixedly installed on one side of the long hole, a speed limiter switch is fixedly installed on one side of the fixing piece near the top, a straight beam is fixedly installed on one side of the fixing piece, a tensioning wheel is fixedly installed on the front end of the straight beam, a noise-proof mechanism is arranged on the outside of the tensioning wheel, and an adjustment mechanism is arranged on one side of the straight beam; although this patent can reduce noise when used, no protective measures are set at the tensioning wheel position, and dust and other debris in the elevator shaft are easy to fall between the wire rope and the tensioning wheel, affecting the normal operation of the wire rope and the tensioning wheel, and it is inconvenient to use.

[0004] In view of the above problems, the utility model document proposes an elevator tensioning pulley device. Utility Model Content

[0005] The utility model aims to provide an elevator tensioning wheel device, which can blow and clean the area inside the tensioning wheel body and in contact with the steel wire rope, so that the steel wire rope and the tensioning wheel body can be better connected without hindering the normal connection between the tensioning wheel body and the steel wire rope, thereby solving the existing technical problems.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The elevator tensioner pulley device comprises:

[0008] A straight beam, wherein a main rotating shaft rotates inside the straight beam, and a tensioning wheel body is fixed on the surface of the main rotating shaft;

[0009] An L-shaped dust cover is fixed to the top of the straight beam by bolts to shield the tensioner from falling dust. U-shaped notches are provided on both sides of the top of the L-shaped dust cover. The two U-shaped notches are used to provide a movable gap for the wire rope;

[0010] A hard connecting tube, a first rotating shaft rotates inside the L-shaped dust cover, the hard connecting tube is fixed to the side end of the first rotating shaft for blowing air toward the surface of the main rotating shaft for cleaning, a group of air pumping components for sending air into the hard connecting tube is provided inside the L-shaped dust cover, and the air pumping components are synchronously driven when the tensioner body rotates;

[0011] And a swing component used in conjunction with the pumping component, wherein the swing component is arranged in the L-shaped dust cover and is used to drive the hard connecting pipe to swing to expand the cleaning range.

[0012] The cam is fixed on the surface of the main shaft, and the raised portion of the cam is intermittently in contact with the bottom end of the push plate. An air bin is also provided in the L-shaped dust cover, and a piston plate is sliding in the air bin. Two connecting rods are fixed on the top end of the push plate, and both connecting rods move upward and penetrate into the air bin. The piston plate is fixed on the side ends of the two connecting rods, and two springs are fixed on the top end of the push plate, and the side ends of the two springs are fixed in the first groove, and the two springs are respectively sleeved on the surfaces of the two connecting rods. An air outlet pipe is fixed in the L-shaped dust cover, and both ends of the air outlet pipe are respectively connected to the air bin and the hard connecting pipe. An air inlet pipe connected to the air bin is fixed in the L-shaped dust cover, and the air inlet pipe is used for air intake.

[0013] Optionally, both the air outlet pipe and the air inlet pipe are provided with a one-way valve, and the opening and closing directions of the one-way valve in the air outlet pipe and the one-way valve in the air inlet pipe are opposite.

[0014] Optionally, the air inlet pipe is an inverted U-shaped hard pipe, the air outlet pipe is a hose, and the air inlet of the air inlet pipe faces downward.

[0015] Optionally, a filter is provided at the air inlet of the air inlet pipe.

[0016] Optionally, the swing assembly includes a second rotating shaft rotating in the first groove, a half-tooth gear is fixed to the surface of the second rotating shaft, a half-tooth ring slides in the first groove and intermittently meshes with the half-tooth gear, a second rack is fixed to the side end of the half-tooth ring, the first rotating shaft moves inwardly and passes through the first groove, and a third gear meshed with the second rack is fixed to the surface of the first rotating shaft.

[0017] Optionally, a first rack is fixed to the top of the push plate, and a first gear meshing with the first rack is fixed to the surface of the second rotating shaft.

[0018] Optionally, a dust shield plate is fixed to the side end of the L-shaped dust cover.

[0019] When the cam is in use, the lift moves up and down, and the tension wheel body is driven to rotate back and forth by the steel wire rope. When the tension wheel body rotates, the main shaft is driven to rotate, and the rotation of the main shaft drives the cam to rotate. When the raised part of the cam rotates upward, the raised part of the cam presses the push plate upward, and the push plate is squeezed and moves upward. The push plate drives the piston plate upward through two connecting rods to squeeze and discharge the air in the air bin. The air in the air bin enters the hard connecting pipe through the air outlet pipe and is sprayed onto the surface of the tension wheel body by the hard connecting pipe to clean the dust. When the raised part of the cam rotates downward, the push plate loses pressure, and the elasticity of the spring pushes the push plate downward, and the push plate returns to the lower side. The push plate pulls the piston plate to reset through the connecting rod, and the piston plate draws air into the air bin through the air inlet pipe, and so on. During the rotation of the tension wheel body, it drives the air pumping assembly to perform air pumping and cleaning.

[0020] At the same time, when the push plate moves up and down, it drives the first rack to move up and down, and when the first rack moves up and down, it drives the first gear to rotate. The rotation of the first gear drives the second rotating shaft to rotate. The rotation of the second rotating shaft drives the half-toothed gear to rotate. The rotation of the half-toothed gear drives the half-toothed ring to move back and forth in the first groove. The half-toothed ring drives the second rack to move back and forth in a straight line. The reciprocating movement of the second rack drives the third gear to swing, the third gear drives the first rotating shaft to swing, and the first rotating shaft drives the hard connecting tube to swing. The swinging of the hard connecting tube can expand the range of air blowing cleaning and is convenient for use.

[0021] In the utility model, the elevator tensioner device can achieve the effect of blowing and cleaning the tensioner body by driving the air pumping assembly to start sending air into the hard connecting pipe during the rotation of the tensioner body through the air pumping assembly;

[0022] In the utility model, the elevator tensioner device can achieve the effect of driving the hard connection pipe to swing back and forth when the hard connection pipe is blown and cleaned by the swing assembly, thereby expanding the cleaning range of the hard connection pipe;

[0023] In the technical solution, the L-shaped dust cover can effectively prevent dust from falling onto the surface of the tensioner wheel body, and the air pumping assembly can be driven to start supplying air into the hard connecting tube to blow and clean the tensioner wheel body during the rotation of the tensioner wheel body, and the area in contact with the wire rope inside the tensioner wheel body can be blown and cleaned, so that the wire rope and the tensioner wheel body can be better connected without hindering the normal connection between the tensioner wheel body and the wire rope, and the swing assembly can drive the hard connecting tube to swing back and forth when blowing and cleaning it, thereby expanding the cleaning range of the hard connecting tube.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is the main stereoscopic view in the utility model;

[0027] Figure 2 It is the first partial stereogram in the utility model;

[0028] Figure 3 It is a cross-sectional view in the utility model;

[0029] Figure 4 It is the first partial cross-sectional view in the utility model;

[0030] Figure 5 It is a second partial cross-sectional view in the utility model;

[0031] Figure 6 It is a partial stereogram of the present utility model.

[0032] In the figure: 1. straight beam; 2. main rotating shaft; 3. tensioner wheel body; 4. L-shaped dust cover; 5. dust shield plate; 6. U-shaped notch; 7. air outlet pipe; 8. air inlet pipe; 9. cam; 10. first groove; 11. push plate; 12. connecting rod; 13. spring; 14. piston plate; 15. air chamber; 16. hard connecting pipe; 17. first rotating shaft; 18. first rack; 19. second rotating shaft; 20. first gear; 21. half-toothed ring; 22. second rack; 23. third gear; 24. half-toothed gear. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components. Embodiment 1

[0036] See also Figure 1-Figure 6 As shown, in this embodiment, an elevator tensioner pulley device is provided, comprising:

[0037] A straight beam 1, a main shaft 2 is rotated inside the straight beam 1, and a tensioning wheel body 3 is fixed on the surface of the main shaft 2;

[0038] An L-shaped dust cover 4 is fixed to the top of the straight beam 1 by bolts and is used to shield the tensioner wheel 3 from falling dust. Both sides of the top of the L-shaped dust cover 4 are provided with U-shaped notches 6, and the two U-shaped notches 6 are used to provide a movable gap for the wire rope;

[0039] Furthermore, a dust shield plate 5 is fixed to the side end of the L-shaped dust shield 4;

[0040] A hard connecting tube 16, a first rotating shaft 17 is rotated in the L-shaped dust cover 4, the hard connecting tube 16 is fixed to the side end of the first rotating shaft 17 for blowing air toward the surface of the main rotating shaft 2 for cleaning, a group of air pumping components for sending air into the hard connecting tube 16 are provided in the L-shaped dust cover 4, and the air pumping components are synchronously driven when the tensioning wheel body 3 rotates; the air pumping components include a first groove 10 opened in the L-shaped dust cover 4, a push plate 11 slides in the first groove 10, a cam 9 is fixed to the surface of the main rotating shaft 2, and the protrusion of the cam 9 and the bottom end of the push plate 11 are intermittently in contact The L-shaped dust cover 4 is also provided with an air chamber 15, in which a piston plate 14 slides, two connecting rods 12 are fixed to the top of the push plate 11, and the two connecting rods 12 are movable upward to penetrate into the air chamber 15, the piston plate 14 is fixed to the side ends of the two connecting rods 12, and two springs 13 are fixed to the top of the push plate 11, and the side ends of the two springs 13 are fixed in the first groove 10, and the two springs 13 are respectively sleeved on the surfaces of the two connecting rods 12, and an air outlet pipe 7 is fixed in the L-shaped dust cover 4, and the two ends of the air outlet pipe 7 are respectively connected to the air chamber 15 and the hard The L-shaped dust cover 4 is connected with the air inlet pipe 8 connected with the air chamber 15, and the air inlet pipe 8 is fixed to the L-shaped dust cover 4, and the air inlet pipe 8 is used for air intake; when the elevator is used, it moves up and down, and the tension wheel body 3 is driven by the wire rope to rotate back and forth. When the tension wheel body 3 rotates, it drives the main shaft 2 to rotate, and the main shaft 2 rotates to drive the cam 9 to rotate. When the raised part of the cam 9 rotates upward, the raised part of the cam 9 presses the push plate 11 upward, and the push plate 11 is squeezed and moved upward. The push plate 11 drives the piston plate 14 to move upward through the two connecting rods 12, and the air chamber 15 is pressed upward. The air in the air chamber 15 is squeezed out, and the air in the air chamber 15 enters the hard connecting pipe 16 through the air outlet pipe 7, and is sprayed to the surface of the tensioner wheel body 3 by the hard connecting pipe 16 to clean the dust. When the raised part of the cam 9 rotates downward, the push plate 11 loses pressure, and the elasticity of the spring 13 pushes the push plate 11 to move downward. The push plate 11 returns to the lower side, and the push plate 11 pulls the piston plate 14 to reset through the connecting rod 12. The piston plate 14 draws air into the air chamber 15 through the air inlet pipe 8 and repeats in this way. The tensioner wheel body 3 drives the air pumping assembly to perform air pumping and cleaning during the rotation process.

[0041] Both the air outlet pipe 7 and the air inlet pipe 8 are provided with a one-way valve, and the opening and closing directions of the one-way valve in the air outlet pipe 7 and the one-way valve in the air inlet pipe 8 are opposite; the air inlet pipe 8 is an inverted U-shaped hard pipe, the air outlet pipe 7 is a soft pipe, and the air inlet of the air inlet pipe 8 faces downward;

[0042] The air inlet of the air inlet pipe 8 is provided with a filter to prevent dust from entering the air chamber 15 and then being blown onto the surface of the tensioner wheel body 3;

[0043] The one-way valve in the air outlet pipe 7 is opened only when exhausting air and remains closed when intake air. The one-way valve in the air intake pipe 8 is opened only when intake air and remains closed when exhausting air. Embodiment 2

[0044] Improved on the basis of embodiment 1: Refer to attached Figure 1 -Attached Figure 5 A tensioner device also includes a swing assembly used in conjunction with the air pump assembly, the swing assembly is arranged in the L-shaped dust cover 4 and is used to drive the hard connection tube 16 to swing and expand the cleaning range; the swing assembly includes a second rotating shaft 19 rotating in the first groove 10, a semi-toothed gear 24 is fixed on the surface of the second rotating shaft 19, a semi-toothed gear ring 21 intermittently meshed with the semi-toothed gear 24 slides in the first groove 10, a second rack 22 is fixed on the side end of the semi-toothed gear ring 21, the first rotating shaft 17 moves inwardly and penetrates into the first groove 10, and a third gear 23 meshed with the second rack 22 is fixed on the surface of the first rotating shaft 17;

[0045] Among them, a first rack 18 is fixed to the top of the push plate 11, and a first gear 20 meshing with the first rack 18 is fixed to the surface of the second rotating shaft 19; at the same time, when the push plate 11 moves up and down, it drives the first rack 18 to move up and down, and when the first rack 18 moves up and down, it drives the first gear 20 to rotate, and the rotation of the first gear 20 drives the second rotating shaft 19 to rotate, and the rotation of the second rotating shaft 19 drives the half-tooth gear 24 to rotate, and the rotation of the half-tooth gear 24 drives the half-tooth gear ring 21 to move back and forth in the first groove 10, and the half-tooth gear ring 21 drives the second rack 22 to move back and forth in a straight line, and the reciprocating movement of the second rack 22 drives the third gear 23 to swing, and the third gear 23 drives the first rotating shaft 17 to swing, and the first rotating shaft 17 drives the hard connecting tube 16 to swing, and the swing of the hard connecting tube 16 can expand the range of air blowing cleaning and facilitate use.

[0046] It should be noted that, in the description of this specification, descriptions such as "first", "second", etc. are merely used to distinguish between various features and have no actual order or directional meaning, and this application is not limited to this.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An elevator tensioner pulley device, characterized in that: include: A straight beam (1), wherein a main rotating shaft (2) rotates inside the straight beam (1), and a tensioning wheel body (3) is fixed on the surface of the main rotating shaft (2); An L-shaped dust cover (4), the L-shaped dust cover (4) being fixed to the top of the straight beam (1) by means of bolts and being used to shield the tensioning wheel body (3) from falling dust, and U-shaped notches (6) being provided on both sides of the top of the L-shaped dust cover (4), the two U-shaped notches (6) being used to provide a movable gap for the steel wire rope; A hard connecting tube (16), a first rotating shaft (17) rotating inside the L-shaped dust cover (4), the hard connecting tube (16) being fixed to the side end of the first rotating shaft (17) for blowing air toward the surface of the main rotating shaft (2) for cleaning, a group of air pumping components for sending air into the hard connecting tube (16) being provided inside the L-shaped dust cover (4), the air pumping components being synchronously driven by the rotation of the tension wheel body (3); And a swing component used in conjunction with the pumping component, wherein the swing component is arranged in the L-shaped dust cover (4) and is used to drive the hard connecting pipe (16) to swing to expand the cleaning range.

2. The elevator tensioner device according to claim 1, characterized in that: The pumping assembly comprises a first groove (10) provided in an L-shaped dust cover (4), a push plate (11) sliding in the first groove (10), a cam (9) fixed on the surface of the main shaft (2), a raised portion of the cam (9) and a bottom end of the push plate (11) intermittently contacting each other, an air chamber (15) provided in the L-shaped dust cover (4), a piston plate (14) sliding in the air chamber (15), two connecting rods (12) fixed on the top end of the push plate (11), both of the connecting rods (12) moving upwards and penetrating into the air chamber (15), the piston plate (14) 14) is fixed to the side ends of the two connecting rods (12), two springs (13) are fixed to the top end of the push plate (11), the side ends of the two springs (13) are fixed in the first groove (10), the two springs (13) are respectively sleeved on the surfaces of the two connecting rods (12), an air outlet pipe (7) is fixed in the L-shaped dust cover (4), the two ends of the air outlet pipe (7) are respectively connected to the air bin (15) and the hard connecting pipe (16), and an air inlet pipe (8) connected to the air bin (15) is fixed in the L-shaped dust cover (4), and the air inlet pipe (8) is used for air intake.

3. The elevator tensioner device according to claim 2, characterized in that: Both the air outlet pipe (7) and the air inlet pipe (8) are provided with a one-way valve, and the opening and closing directions of the one-way valve in the air outlet pipe (7) and the one-way valve in the air inlet pipe (8) are opposite.

4. The elevator tensioner device according to claim 3, characterized in that: The air inlet pipe (8) is an inverted U-shaped hard pipe, the air outlet pipe (7) is a soft pipe, and the air inlet of the air inlet pipe (8) faces downward.

5. The elevator tensioner device according to claim 4, characterized in that: The air inlet of the air inlet pipe (8) is provided with a filter.

6. The elevator tensioner pulley device according to claim 2, characterized in that: The swing assembly comprises a second rotating shaft (19) rotating in the first groove (10), a semi-toothed gear (24) being fixed on the surface of the second rotating shaft (19), a semi-toothed gear ring (21) sliding in the first groove (10) and intermittently meshing with the semi-toothed gear (24), a second rack (22) being fixed on the side end of the semi-toothed gear ring (21), the first rotating shaft (17) moving inwardly and penetrating into the first groove (10), and a third gear (23) meshing with the second rack (22) being fixed on the surface of the first rotating shaft (17).

7. The elevator tensioner device according to claim 6, characterized in that: A first rack (18) is fixed to the top end of the push plate (11), and a first gear (20) meshing with the first rack (18) is fixed to the surface of the second rotating shaft (19).

8. The elevator tensioner pulley device according to any one of claims 1 to 3, characterized in that: A dust shield plate (5) is fixed to the side end of the L-shaped dust shield (4).

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