Counterweight protective fence for elevator

Abstract

The elevator counterweight protective fence comprises a front protective fence, two sets of side supporting arms arranged on the two sides of the front protective fence and side protective fences arranged on the side supporting arms respectively, the front protective fence comprises a plurality of front protective plates which are vertically arranged, and a first reinforcing arm is arranged at the top of one side of the uppermost front protective plate. A second reinforcing arm is arranged at the bottom of one side of the lowermost front protective plate, two vertically adjacent front protective plates form a group, a first bent edge is arranged at the bottom end of the upper front protective plate, a second bent edge is arranged at the top end of the lower front protective plate, and the second bent edge is arranged in the first bent edge and detachably connected with the first bent edge. Each set of side supporting arms comprises a plurality of side supporting arms, one side supporting arm is arranged at the top end of one side of the uppermost front protection plate, the other side supporting arm is arranged at the bottom end of one side of the lowermost front protection plate, and the remaining side supporting arms correspond to the multiple sets of front protection plates in a one-to-one mode and are arranged on the two corresponding front protection plates. According to the utility model, the purposes of low cost and high strength are realized.

Description

Technical Field

[0001] This utility model belongs to the field of elevator technology, and in particular relates to an elevator counterweight guardrail. Background Technology

[0002] To prevent personnel from accidentally entering the counterweight's operating area while in the elevator shaft, counterweight guardrails need to be installed in the counterweight's operating area in the elevator pit. These guardrails must meet specific protective height and width requirements and possess sufficient strength. However, protective strength and material usage present a trade-off; balancing material costs with guardrail strength is a problem that elevator manufacturers need to solve. Utility Model Content

[0003] The purpose of this invention is to provide a low-cost, high-strength elevator counterweight guardrail.

[0004] This utility model is achieved through the following technical solution:

[0005] An elevator counterweight guardrail includes a front guardrail, two sets of side arms on both sides of the front guardrail, and two side guardrails respectively installed on the two sets of side arms. The front guardrail includes a plurality of front guard plates arranged sequentially from top to bottom. The top of one side of the uppermost front guard plate is provided with a first reinforcing arm, and the bottom of one side of the lowermost front guard plate is provided with a second reinforcing arm. Two adjacent front guard plates form a group. The bottom of the upper front guard plate is provided with a first bent edge, and the top of the lower front guard plate is provided with a second bent edge. The second bent edge is located inside the first bent edge and is detachably connected to the first bent edge. Each set of side arms includes multiple side arms. One side arm is located at the top of one side of the uppermost front guard plate, and one side arm is located at the bottom of one side of the lowermost front guard plate. The remaining side arms correspond one-to-one with the multiple sets of front guard plates and are installed on the corresponding two front guard plates.

[0006] Furthermore, the second bent edge is provided with a plurality of first through holes at intervals, and the bottom of the second bent edge is provided with a rivet nut communicating with the first through hole at the position corresponding to the first through hole. The first bent edge is provided with a plurality of first strip holes corresponding one-to-one with the plurality of first through holes. The first bent edge is installed on the second bent edge by means of a rivet bolt passing through the corresponding first strip hole and the first through hole and being screwed to the rivet nut.

[0007] Furthermore, both the first and second bending edges are L-shaped, including a horizontal portion and a vertical portion. The vertical portion is located at the bottom of the end of the horizontal portion away from the front guard plate. The first through hole is located on the horizontal portion of the second bending edge, and the first strip hole is located on the horizontal portion of the first bending edge.

[0008] Furthermore, the front guard plate has a Z-shaped cross-section and includes a first front guard surface, a connecting surface, and a second front guard surface. The first bending edge includes a first bending segment disposed on the first front guard surface and a second bending segment disposed on the second front guard surface. The second bending edge includes a third bending segment disposed on the first front guard surface and a fourth bending segment disposed on the second front guard surface. The third bending segment is disposed within the first bending segment and is detachably connected to the first bending segment. The fourth bending segment is disposed within the second bending segment and is detachably connected to the second bending segment.

[0009] Furthermore, the side arm is L-shaped and includes a first connecting plate and a second connecting plate. The first connecting plate is connected to the corresponding front guard plate by bolts, and the second connecting plate is connected to the corresponding side guardrail by several bolts.

[0010] Furthermore, the second connecting plate has a plurality of second strip-shaped holes spaced apart on the end away from the first connecting plate.

[0011] Furthermore, the side guardrail includes a first side guard plate and a second side guard plate, with L-shaped side plates on both sides of the first and second side guard plates, and the bottom end of the first side guard plate nested inside the top end of the second side guard plate.

[0012] Furthermore, a notch is provided on the bottom front guard plate for the compensation chain to pass through, and a lower support arm is detachably installed on both sides of the notch on the bottom front guard plate, with several second through holes on the lower support arm.

[0013] Furthermore, a peephole is provided on the front fender.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the front guardrails are connected to each other through the first and second bending edges to form a whole, which improves the overall rigidity of the front guardrail and avoids the problem of needing to use a lot of reinforcing arms to strengthen the front guardrail. In addition to achieving the goals of lightweight structure and convenient packaging, it also achieves the goals of low cost, high strength and convenient installation. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the elevator counterweight guardrail of this utility model;

[0016] Figure 2 This is a schematic diagram showing the connection between two adjacent front guard plates in the elevator counterweight guardrail of this utility model;

[0017] Figure 3 for Figure 2 Side view;

[0018] Figure 4 for Figure 3 Enlarged schematic diagram of part A;

[0019] Figure 5 This is a schematic diagram of the structure of a front guard plate in the elevator counterweight guardrail of this utility model;

[0020] Figure 6 This is a schematic diagram of the side guardrail in the elevator counterweight protection railing of this utility model;

[0021] Figure 7 for Figure 6 Enlarged diagram of part B;

[0022] Figure 8 This is a schematic diagram of the side support arm in the elevator counterweight guardrail of this utility model.

[0023] In the diagram, 1-front guard plate, 11-first front guard surface, 12-connecting surface, 13-second front guard surface, 14-notch, 15-viewing hole, 2-first reinforcing arm, 3-second reinforcing arm, 4-first bent edge, 41-first strip hole, 42-riveting nut, 43-horizontal part, 44-vertical part, 45-first bent section, 46-second bent section, 5-second bent edge, 51-first through hole, 52-third bent section, 53-fourth bent section, 6-side support arm, 61-first connecting plate, 62-second connecting plate, 63-second strip hole, 7-side guardrail, 71-first side guard plate, 72-second side guard plate, 73-L-shaped side plate, 8-lower support arm, 81-second through hole, 9-riveting bolt. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Please see Figures 1 to 5 , Figure 1 This is a structural schematic diagram of the elevator counterweight guardrail of this utility model. Figure 2 This is a schematic diagram showing the connection between two adjacent front guard plates in the elevator counterweight guardrail of this utility model. Figure 3 for Figure 2 Side view, Figure 4 for Figure 3 Enlarged diagram of part A, Figure 5This is a schematic diagram of the structure of a front guard plate in the elevator counterweight guardrail of this utility model. An elevator counterweight guardrail includes a front guardrail, two sets of side arms 6 arranged on both sides of the front guardrail, and two side guardrails 7 respectively arranged on the two sets of side arms 6. The front guardrail includes a plurality of front guard plates 1 arranged sequentially from top to bottom. The top of one side of the uppermost front guard plate 1 is provided with a first reinforcing arm 2, and the bottom of one side of the lowermost front guard plate 1 is provided with a second reinforcing arm 3. Two adjacent front guard plates 1 form a group. The bottom of the upper front guard plate 1 is provided with a first bent edge 4, and the top of the lower front guard plate 1 is provided with a second bent edge 5. The second bent edge 5 is located inside the first bent edge 4 and is detachably connected to the first bent edge 4. Each set of side arms 6 includes a plurality of side arms 6. One side arm 6 is located at the top of one side of the uppermost front guard plate 1, and one side arm 6 is located at the bottom of one side of the lowermost front guard plate 1. The remaining side arms 6 correspond one-to-one with the plurality of sets of front guard plates 1 and are arranged on the corresponding two front guard plates 1.

[0030] The front guard plate 1 and side guardrail 7 of this utility model elevator counterweight guardrail can be made of thin metal sheets bent into specific shapes. The front guard plates 1 are nested and connected to each other via a first bent edge 4 and a second bent edge 5 to form a whole. The first bent edge 4 and the second bent edge 5 can improve the overall rigidity of the front guardrail, thus avoiding the need for numerous reinforcing arms. Simultaneously, the first reinforcing arm 2 and the second reinforcing arm 3 are respectively located at the top of the uppermost front guard plate 1 and the bottom of the lowermost front guard plate 1, reinforcing the upper edge strength of the uppermost front guard plate 1 and the lower edge strength of the lowermost front guard plate 1. This achieves lightweight structure, convenient packaging, low cost, high strength, and easy installation. In use, the side support arms 6 are fixed to the guide rails. Multiple side support arms 6 in the same group are detachably connected to the same side guardrail 7, so that the front guardrail and side guardrail 7 surround the outside of the elevator counterweight frame, thus achieving a protective function.

[0031] In one embodiment, the second bent edge 5 is provided with a plurality of first through holes 51 spaced apart. A riveting nut 42 communicating with the first through holes 51 is provided at the bottom of the second bent edge 5 at a position corresponding to each of the first through holes 51. The first bent edge 4 is provided with a plurality of first strip holes 41 corresponding one-to-one with the plurality of first through holes 51. The first bent edge 4 is installed on the second bent edge 5 by riveting bolts 9 passing through the corresponding first strip holes 41 and first through holes 51 and then screwed onto the riveting nut 42. The first bent edge 4 and the second bent edge 5 are detachably connected by riveting bolts 9 and riveting nuts 42, resulting in a secure connection and convenient assembly / disassembly.

[0032] In one embodiment, both the first bending edge 4 and the second bending edge 5 are L-shaped, including a horizontal portion 43 and a vertical portion 44. The vertical portion 44 is located at the bottom of the end of the horizontal portion 43 away from the front guard plate 1. A first through hole 51 is located on the horizontal portion 43 of the second bending edge 5, and a first strip hole 41 is located on the horizontal portion 43 of the first bending edge 4. The L-shaped structure of the first bending edge 4 and the second bending edge 5 facilitates the nesting of two adjacent front guard plates 1, thereby facilitating the alignment of the positions of the two adjacent front guard plates 1.

[0033] In one embodiment, the front guard plate 1 has a Z-shaped cross-section. The front guard plate 1 includes a first front guard surface 11, a connecting surface 12, and a second front guard surface 13. The first bending edge 4 includes a first bending segment 45 disposed on the first front guard surface 11 and a second bending segment 46 disposed on the second front guard surface 13. The second bending edge 5 includes a third bending segment 52 disposed on the first front guard surface 11 and a fourth bending segment 53 disposed on the second front guard surface 13. The third bending segment 52 is disposed within the first bending segment 45 and is detachably connected to the first bending segment 45. The fourth bending segment 53 is disposed within the second bending segment 46 and is detachably connected to the second bending segment 46. The first reinforcing arm 2 and the second reinforcing arm 3 are both Z-shaped to match the front guard plate 1. The front skid plate 1 is bent into a Z-shape. The first bending edge 4 and the second bending edge 5 are only provided on the first front skid plate 11 and the second front skid plate 13. While ensuring the rigidity of the front skid plate 1, the material usage of the first bending edge 4 and the second bending edge 5 is reduced to lower the cost. The first reinforcing arm 2 and the second reinforcing arm 3 are Z-shaped to match the front skid plate 1.

[0034] The first reinforcing arm 2 and the second reinforcing arm 3 can be fixed to the front guard plate 1 by riveting, welding and screwing. In one embodiment, the first reinforcing arm 2 is connected to the uppermost front guard plate 1 and the second reinforcing arm 3 is connected to the lowermost front guard plate 1 by a number of bolts.

[0035] Please refer to the following: Figure 8 , Figure 8This is a schematic diagram of the side support arm in the elevator counterweight guardrail of this utility model. In one embodiment, the side support arm 6 is L-shaped and includes a first connecting plate 61 and a second connecting plate 62. The first connecting plate 61 is bolted to the corresponding front guard plate 1, and the second connecting plate 62 is bolted to the corresponding side guardrail 7. The side support arm 6 is made of thick metal plate bent into an L-shape. The first connecting plate 61 can be used to fix one or two corresponding front guard plates 1 to the side support arm 6. The second connecting plate 62 can be used to connect the side guardrail 7 and fix the side guardrail 7 to the side support arm 6, thereby surrounding the elevator counterweight frame through the front guardrail and the side guardrail 7. In one embodiment, the end of the second connecting plate 62 away from the first connecting plate 61 is provided with a plurality of second strip-shaped holes 63 at intervals. The second connecting plate 62 is connected to the guide rail through the plurality of second strip-shaped holes 63, and its position is adjustable to adjust the overall position of the elevator counterweight guardrail of this utility model relative to the elevator counterweight frame.

[0036] Please refer to the following: Figure 6 and Figure 7 , Figure 6 This is a structural schematic diagram of the side guardrail in the elevator counterweight protection railing of this utility model. Figure 7 for Figure 6 The diagram shows an enlarged view of part B. In one embodiment, the side railing 7 includes a first side guard plate 71 and a second side guard plate 72. L-shaped side plates 73 are provided on both sides of the first and second side guard plates 71 and 72. The bottom end of the first side guard plate 71 is nested within the top end of the second side guard plate 72. The side railing 7 adopts a split design, with the first side guard plate 71 slightly smaller than the second side guard plate 72, allowing the first side guard plate 71 to be nested within the second side guard plate 72. This facilitates packing and transportation, avoiding the problem of the side railing 7 being too long to pack if it were made as a single piece. In use, the first side guard plate 71 is pulled out from the second side guard plate 72 to a suitable length, and then the first and second side guard plates 71 and 72 are installed on the corresponding side support arms 6 to form the side railing 7.

[0037] In one embodiment, the lowermost front guard plate 1 has a notch 14 for the compensation chain to pass through. Lower support arms 8 are detachably mounted on both sides of the notch 14 on the lowermost front guard plate 1, and each lower support arm 8 has several second through holes 81. The notch 14 on the lowermost front guard plate 1 allows the compensation chain to pass through, preventing it from scraping the front guardrail and ensuring the chain is close to the ground to avoid obstructing workers in the elevator shaft. The two lower support arms 8 reinforce the lowermost front guard plate 1 on both sides of the notch 14 and are used to mount the front guardrail to the ground. The lower support arms 8 can be connected to the ground using expansion bolts through the several second through holes 81. In one embodiment, the front guard plate 1 has a viewing hole 15. The viewing hole 15 can be used to observe the position of the counterweight frame.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An elevator counterweight guard comprising: The front guardrail, two groups of side support arms arranged on both sides of the front guardrail, and two side guardrails arranged on the two groups of side support arms are included, the front guardrail includes a plurality of front guard plates arranged from top to bottom, a first reinforcing arm is arranged on one side of the top of the uppermost front guard plate, a second reinforcing arm is arranged on one side of the bottom of the lowermost front guard plate, two adjacent front guard plates are a group, the bottom end of the upper front guard plate is provided with a first bending edge, the top end of the lower front guard plate is provided with a second bending edge, the second bending edge is arranged in the first bending edge and detachably connected with the first bending edge, each group of side support arms includes a plurality of side support arms, one side support arm is arranged on the top end of one side of the uppermost front guard plate, one side support arm is arranged on the bottom end of one side of the lowermost front guard plate, and the remaining side support arms correspond to the plurality of front guard plates one by one and are arranged on the corresponding two front guard plates.

2. The elevator counterweight guardrail of claim 1, wherein, A plurality of first through holes are arranged on the second bending edge, a rivet nut in communication with the first through holes is arranged on the bottom of the second bending edge, a plurality of first strip holes corresponding to the first through holes are arranged on the first bending edge, and the first bending edge is installed on the second bending edge by screwing a rivet bolt through the corresponding first strip hole and first through hole and the rivet nut.

3. The elevator counterweight guardrail of claim 2, wherein, The first bending edge and the second bending edge are both L-shaped and include a horizontal part and a vertical part, the vertical part is arranged on the bottom end of the horizontal part away from the front guard plate, the first through hole is arranged on the horizontal part of the second bending edge, and the first strip hole is arranged on the horizontal part of the first bending edge.

4. The elevator counterweight guardrail of claim 1, wherein, The cross section of the front guard plate is Z-shaped, the front guard plate includes a first front surface, a connecting surface and a second front surface, the first bending edge includes a first bending section arranged on the first front surface and a second bending section arranged on the second front surface, the second bending edge includes a third bending section arranged on the first front surface and a fourth bending section arranged on the second front surface, the third bending section is arranged in the first bending section and detachably connected with the first bending section, and the fourth bending section is arranged in the second bending section and detachably connected with the second bending section.

5. The elevator counterweight guardrail of claim 1, wherein, The side support arm is L-shaped and includes a first connecting plate and a second connecting plate, the first connecting plate is connected with the corresponding front guard plate through a bolt, and the second connecting plate is connected with the corresponding side guardrail through a plurality of bolts.

6. The elevator counterweight guardrail of claim 5, wherein, A plurality of second strip holes are arranged on the end of the second connecting plate away from the first connecting plate.

7. The elevator counterweight guardrail of claim 1, wherein, The side guardrail includes a first side guard plate and a second side guard plate, L-shaped side plates are arranged on both sides of the first side guard plate and the second side guard plate, and the bottom end of the first side guard plate is nested in the top end of the second side guard plate.

8. The elevator counterweight guardrail of claim 1, wherein, A gap for the compensation chain to pass through is arranged on the lowermost front guard plate, lower support arms are detachably installed on both sides of the gap of the lowermost front guard plate, and a plurality of second through holes are arranged on the lower support arms.

9. The elevator counterweight guardrail of claim 1, wherein, A peep hole is arranged on the front guard plate.

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