Back plate of platform ladder

Abstract

The utility model provides a platform ladder back plate, which belongs to the technical field of elevators, and comprises a counterweight frame and a steel wire rope, the counterweight frame is provided with an alignment hole, the steel wire rope passes through the alignment hole, one end of the steel wire rope is used for being connected with the top of a shaft body, and the other end of the steel wire rope is used for being connected with the bottom of the shaft body; the steel wire rope penetrates through the counterweight frame through the alignment hole so as to pull the counterweight frame to prevent the counterweight frame from inclining.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevators and relates to a rear plate of a platform ladder. Background Art

[0002] The counterweight frame is a device for fixing the elevator counterweight. It is used to reduce the power of the traction motor and improve the efficiency of the elevator car's up and down movement. The structure of the counterweight frame will affect the stability of the elevator's operation.

[0003] For example, an invention patent with application number CN201210279743.8 provides an invention that discloses a high-speed counterweight frame, including a lower beam, two columns are connected to the lower beam, and an upper beam is connected to the upper column; rolling guide shoes are arranged at both ends of the lower beam and the upper beam, and a rope wheel is arranged in the middle of the upper beam, and the rope wheel is located below the rolling guide shoe. The advantages of the present invention are that the high-speed counterweight frame simplifies the design and manufacture of related parts, is faster and more convenient than before in production process, improves work efficiency, and improves product quality by 8%. After the rope wheel shaft adopts a structural device with an oiling hole, the maintenance of the bearing is convenient and quick, which ensures the normal operation function of the counterweight rope wheel.

[0004] In summary, although some existing technical solutions have solved the problem of the stability of the counterweight frame, the length of the counterweight frame also increases accordingly due to the increase in the height of the floor, which makes it easy to tilt and other problems, and there is a lot of room for improvement. Summary of the invention

[0005] The purpose of the utility model is to solve the above problems in the prior art and propose a platform ladder back plate, comprising:

[0006] A counterweight frame provided with straightening holes;

[0007] A steel wire rope passes through the straight hole, one end of the steel wire rope is used to be connected to the top of the well body, and the other end of the steel wire rope is used to be connected to the bottom of the well body.

[0008] In the above-mentioned platform ladder back plate, the counterweight frame includes vertical rods and cross rods, the number of the vertical rods is two, the number of the cross rods is at least one, each cross rod is located between the two vertical rods, and the two ends of each cross rod are respectively connected to the two vertical rods.

[0009] In the above-mentioned platform ladder back plate, the straight hole includes a first through hole portion, the first through hole portion is arranged on the vertical rod, and the steel wire rope passes through the first through hole portion.

[0010] In the above-mentioned platform ladder back plate, the straight hole also includes a second through hole portion, the two ends of the cross bar respectively extend and cover the first through hole portions of the two vertical bars, the second through hole portion is arranged on the cross bar, and the second through hole portion is concentrically arranged and connected with the first through hole portion.

[0011] In the above-mentioned platform ladder back plate, it also includes a connecting piece, one end of the steel wire rope is used to connect with the top of the hoistway body through the connecting piece, and the other end of the steel wire rope is used to connect with the bottom of the hoistway body through the connecting piece.

[0012] In the above-mentioned platform ladder back plate, the connecting member includes a rivet bolt and a first hook, the rivet bolt is connected to the first hook, the rivet bolt is used to connect to the top of the well or the bottom of the well, and the wire rope is connected to the first hook.

[0013] In the above-mentioned platform ladder back plate, it also includes a tensioner, which is arranged between the steel wire rope and the connecting member. The steel wire rope and the connecting member are connected through the tensioner, and the tensioner can tighten the steel wire rope.

[0014] In the above-mentioned platform ladder back plate, a second hook is provided at one end of the tensioner, a pull ring is provided at the other end of the tensioner, the steel wire rope is connected to the second hook, and the first hook hooks the pull ring.

[0015] In the above-mentioned platform ladder back plate, it also includes a support seat, which is located at the bottom of the counterweight frame and can support the counterweight frame.

[0016] In the above-mentioned platform ladder back plate, it also includes a fixing member, which is arranged at the connection between the cross bar and the vertical bar, and the cross bar and the vertical bar are connected through the fixing member.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The steel wire rope passes through the counterweight frame through the straight hole, thereby pulling the counterweight frame so that it will not tilt.

[0019] 2. One end of the tensioner is connected to the wire rope, and the other end is connected to the connecting piece. After the wire rope passes through the counterweight frame, the wire rope is tightened through the tensioner so that the wire rope is always in a taut state.

[0020] 3. The connection angle code is set at the vertical connection between the horizontal bar and the vertical bar to enhance the strength of the counterweight frame and make it less likely to deform. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a structural schematic diagram of the utility model.

[0022] Figure 2 for Figure 1 Enlarged view of detail A.

[0023] Figure 3 for Figure 1 Enlarged view of detail B.

[0024] Figure 4 for Figure 1 Enlarged view of detail C.

[0025] In the figure:

[0026] 1. Counterweight frame; 11. Straightening hole; 111. First through hole portion; 112. Second through hole portion; 12. Vertical rod; 13. Horizontal rod; 2. Steel wire rope; 3. Hoistway body; 4. Connecting piece; 41. Rivet bolt; 42. First hook; 5. Tensioner; 51. Second hook; 52. Pull ring; 6. Support seat; 7. Fixing piece. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0033] like Figure 1-Figure 4 As shown, a platform ladder back plate includes: a counterweight frame 1 and a steel wire rope 2.

[0034] Wherein, the counterweight frame 1 is provided with straightening holes 11 .

[0035] The steel wire rope 2 passes through the straight hole 11 , one end of the steel wire rope 2 is used to connect with the top of the well body 3 , and the other end of the steel wire rope 2 is used to connect with the bottom of the well body 3 .

[0036] Specifically, the straight hole 11 passes through the counterweight frame 1 , and after the steel wire rope 2 passes through the straight hole 11 , one end is connected to the top of the hoistway body 3 , and the other end is connected to the bottom of the hoistway body 3 .

[0037] In this embodiment, the steel wire rope 2 passes through the counterweight frame 1 through the straight hole 11, thereby pulling the counterweight frame 1 so that it does not tilt.

[0038] like Figure 1-Figure 4 As shown, on the basis of the above embodiment, the counterweight frame 1 includes vertical rods 12 and cross rods 13, the number of the vertical rods 12 is two, the number of the cross rod 13 is at least one, each of the cross rods 13 is located between the two vertical rods 12, and the two ends of each of the cross rods 13 are respectively connected to the two vertical rods 12.

[0039] Specifically, a plurality of cross bars 13 are connected between the two vertical bars 12 , the two vertical bars 12 are arranged in parallel, and the cross bars 13 are arranged perpendicular to the two vertical bars 12 .

[0040] In this embodiment, two vertical rods 12 are connected by a plurality of horizontal rods 13 to form a frame structure standing on the hoistway body 3 .

[0041] like Figure 1-Figure 4As shown, on the basis of the above embodiment, the straight hole 11 includes a first through hole portion 111 , the first through hole portion 111 is arranged on the vertical rod 12 , and the steel wire rope 2 passes through the first through hole portion 111 .

[0042] In this embodiment, the first through hole portion 111 is disposed on the vertical rod 12 , and the steel wire rope 2 passes through the entire vertical rod 12 through the first through hole portion 111 , so that the vertical rod 12 can stand on the hoistway body 3 without tilting.

[0043] like Figure 1-Figure 4 As shown, on the basis of the above embodiment, the straight hole 11 also includes a second through hole portion 112, and the two ends of the cross bar 13 respectively extend and cover the first through hole portions 111 of the two vertical bars 12, and the second through hole portion 112 is arranged on the cross bar 13, and the second through hole portion 112 is concentrically arranged and connected with the first through hole portion 111.

[0044] Specifically, the second through hole portion 112 is disposed on the cross bar 13 , the steel wire rope 2 passes through the cross bar 13 through the second through hole portion 112 , and the second through hole portion 112 and the first through hole portion 111 are on the same straight line.

[0045] In this embodiment, the steel wire rope 2 passes through the first through hole portion 111 and the second through hole portion 112 , thereby passing through the entire counterweight frame 1 , thereby preventing the counterweight frame 1 from tilting.

[0046] like Figure 1-Figure 4 As shown, based on the above embodiment, a connecting member 4 is further included, one end of the steel wire rope 2 is used to connect to the top of the shaft body 3 through the connecting member 4, and the other end of the steel wire rope 2 is used to connect to the bottom of the shaft body 3 through the connecting member 4.

[0047] In this embodiment, the steel wire rope 2 is tightly connected to the top and bottom of the hoistway body 3 through the connecting piece 4 and is not easy to fall off.

[0048] like Figure 1-Figure 4 As shown, based on the above embodiment, the connecting member 4 includes a rivet bolt 41 and a first hook 42, the rivet bolt 41 is connected to the first hook 42, the rivet bolt 41 is used to connect to the top of the well or the bottom of the well, and the wire rope 2 is connected to the first hook 42.

[0049] In this embodiment, the connecting member 4 is composed of a rivet bolt 41 and a first hook 42. The connecting member 4 is inserted into the bottom of the well or the bottom of the well through the rivet bolt 41, so as to be connected to the bottom of the well or the bottom of the well.

[0050] like Figure 1-Figure 4As shown, based on the above embodiment, it also includes a tensioner 5, which is arranged between the steel wire rope 2 and the connecting member 4. The steel wire rope 2 and the connecting member 4 are connected through the tensioner 5, and the tensioner 5 can tighten the steel wire rope 2.

[0051] In this embodiment, one end of the tensioner 5 is connected to the wire rope 2, and the other end is connected to the connector 4. After the wire rope 2 passes through the counterweight frame 1, the wire rope 2 is tightened by the tensioner 5, so that the wire rope 2 is always in a taut state.

[0052] like Figure 1-Figure 4 As shown, based on the above embodiment, a second hook 51 is provided at one end of the tensioner 5, and a pull ring 52 is provided at the other end of the tensioner 5, the wire rope 2 is connected to the second hook 51, and the first hook 42 hooks the pull ring 52.

[0053] Specifically, a second hook 51 is provided at one end of the tensioner 5, and a pull ring 52 is provided at the other end. The wire rope 2 is connected to the second hook 51, and the first hook 42 is hooked on the pull ring 52. In this embodiment, the tightness of the wire rope 2 can be adjusted, and the pull ring 52 of the tensioner 5 can be connected and disassembled with the first hook 42 of the connecting member 4 by adjusting the distance between the first hook 42 of the tensioner 5 and the pull ring 52.

[0054] like Figure 1-Figure 4 As shown, based on the above embodiment, it further includes a support seat 6, and the support seat 6 is located at the bottom of the counterweight frame 1, and the support seat 6 can support the counterweight frame 1.

[0055] In this embodiment, one end of the support seat 6 is connected to the bottom of the counterweight frame 1 , and the other end is connected to the bottom of the hoistway body 3 , thereby supporting the counterweight frame 1 to stand on the hoistway body 3 .

[0056] like Figure 1-Figure 4 As shown, based on the above embodiment, a fixing member 7 is further included. The fixing member 7 is arranged at the connection between the cross bar 13 and the vertical bar 12 , and the cross bar 13 and the vertical bar 12 are connected through the fixing member 7 .

[0057] Specifically, the fixing member 7 is a connecting angle code, and the fixing member 7 is arranged at the connection between the horizontal bar 13 and the vertical bar 12. One side of the fixing member 7 is connected to the horizontal bar 13, and the other side of the fixing member 7 is connected to the vertical bar 12, thereby strengthening the connection between the horizontal bar 13 and the vertical bar 12 and preventing them from being easily separated.

[0058] In this embodiment, the connecting angle code is arranged at the vertical connection between the cross bar 13 and the vertical bar 12, so as to enhance the strength of the counterweight frame 1 and make it less likely to deform.

Claims

1. A platform ladder back plate, characterized in that: include: A counterweight frame provided with straightening holes; A steel wire rope passes through the straight hole, one end of the steel wire rope is used to be connected to the top of the well body, and the other end of the steel wire rope is used to be connected to the bottom of the well body.

2. A platform ladder back plate as claimed in claim 1, characterized in that: The counterweight frame includes vertical bars and cross bars, the number of the vertical bars is two, the number of the cross bars is at least one, each cross bar is located between the two vertical bars, and the two ends of each cross bar are respectively connected to the two vertical bars.

3. A platform ladder back plate as claimed in claim 2, characterized in that: The straight hole includes a first through hole portion, the first through hole portion is arranged on the vertical rod, and the steel wire rope passes through the first through hole portion.

4. A platform ladder back plate as claimed in claim 3, characterized in that: The straight hole also includes a second through hole portion, and the two ends of the cross bar respectively extend and cover the first through hole portions of the two vertical bars. The second through hole portion is arranged on the cross bar, and the second through hole portion is concentrically arranged and connected with the first through hole portion.

5. The platform ladder back plate according to claim 1, characterized in that: It also includes a connecting piece, one end of the steel wire rope is used to connect with the top of the well body through the connecting piece, and the other end of the steel wire rope is used to connect with the bottom of the well body through the connecting piece.

6. A platform ladder back plate as claimed in claim 5, characterized in that: The connecting member includes a rivet bolt and a first hook, the rivet bolt is connected to the first hook, the rivet bolt is used to connect to the top of the well or the bottom of the well, and the steel wire rope is connected to the first hook.

7. A platform ladder back plate as claimed in claim 6, characterized in that: It also includes a tensioner, which is arranged between the steel wire rope and the connecting member. The steel wire rope and the connecting member are connected through the tensioner, and the tensioner can tighten the steel wire rope.

8. The platform ladder back plate according to claim 7, characterized in that: A second hook is arranged at one end of the tensioner, and a pull ring is arranged at the other end of the tensioner. The steel wire rope is connected to the second hook, and the first hook hooks the pull ring.

9. The platform ladder back plate according to claim 2, characterized in that: It also includes a support base, which is located at the bottom of the counterweight frame and can support the counterweight frame.

10. The platform ladder back plate according to claim 2, characterized in that: It also includes a fixing piece, which is arranged at the connection between the cross bar and the vertical bar, and the cross bar and the vertical bar are connected through the fixing piece.

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