Belt clamping assembly and elevator

Abstract

According to the belt clamping assembly and the elevator, on one hand, the two opposite ends of a belt can be clamped and fixed through the first locking piece and the two clamping pieces, so that the belt becomes a closed annular belt; then, the tensioning force of the belt is adjusted through the tensioning device, after the tensioning force is adjusted, the belt is horizontally slid to enable the two clamping pieces to be aligned to the connecting plate, the two clamping pieces and the connecting plate are locked and fixed through the second locking piece, and the assembling efficiency is higher; on the other hand, due to the fact that the first adjusting cushion piece is arranged between the clamping pieces and the connecting plate, the first adjusting cushion piece can adjust the distance between the two clamping pieces and the connecting plate, the position of the belt can be adjusted in the direction perpendicular to the door plate, and the distance between the belt and the flange edge of the belt wheel can be adjusted; friction noise caused by the fact that the distance between the belt and the flange edge is too small can be avoided, and adjustment operation is convenient.

Description

Technical Field

[0001] This application relates to the field of elevator technology, and in particular to a belt clamping assembly and an elevator. Background Technology

[0002] Elevator door opening and closing movements are mostly achieved by a motor driving a belt. Before assembly, the belt is an open belt, meaning it's not a closed-loop belt. During assembly, the belt is mounted onto the motor's pulley; clamps and connecting plates are provided, and the opposite ends of the belt are placed between them, with the belt ends engaging the toothed grooves on the clamps; then, bolts are used to lock the clamps, connecting plates, and belt together, forming a closed loop. However, on the one hand, after bolting the belt onto the connecting plate, the belt tension needs to be adjusted. Adjusting the tension requires disassembling the belt, bolts, clamps, and connecting plates, then readjusting the belt ends' position on the clamp teeth, and finally locking the clamps, connecting plates, and belt back together with bolts. This requires repeated adjustments, resulting in low assembly efficiency. On the other hand, after the belt ends are fixed between the connecting plate and clamps, the belt's position perpendicular to the elevator car door cannot be directly adjusted. This can lead to friction noise when the belt is close to the left and right flange edges of the pulley. Utility Model Content

[0003] Therefore, it is necessary to overcome the shortcomings of the prior art and provide a belt clamping assembly and elevator that can improve assembly efficiency and facilitate adjustment of the belt position in the direction perpendicular to the elevator car door.

[0004] A belt clamping assembly, the belt clamping assembly comprising:

[0005] Two clamping members, one side of which is used to clamp one end of the belt and the other side is used to clamp the other end of the belt;

[0006] A first locking member is used to fix the two clamping members together.

[0007] A second locking member, used to lock and fix the two clamping members to the connecting plate; and

[0008] A first adjusting pad is disposed between the clamping member and the connecting plate, and the first adjusting pad is used to adjust the distance between the two clamping members and the connecting plate.

[0009] In one embodiment, the first adjusting pad is a shim, block, or washer; and / or, the first adjusting pad is one or more.

[0010] In one embodiment, the second locking member includes a bolt and a nut disposed on the bolt; at least one first adjusting washer, the first adjusting washer and the connecting plate are locked and fixed between the head of the bolt and the nut.

[0011] In one embodiment, the bolt further includes a rod connected to the head, at least one of the clamping members is provided with a mounting hole and a positioning groove communicating with the mounting hole, the rod is correspondingly inserted into the mounting hole, the head is correspondingly disposed in the positioning groove, and the inner wall of the positioning groove can restrict the rotation of the head.

[0012] In one embodiment, the first locking member passes through the two clamping members in sequence and fixes the two clamping members together.

[0013] There are two first locking members, which are located on opposite sides of the second locking member.

[0014] In one embodiment, one of the clamping members is provided with a positioning protrusion, and the other clamping member is provided with a positioning recess that positions and engages with the positioning protrusion, wherein the positioning protrusion is disposed in the positioning recess.

[0015] In one embodiment, one of the clamping members has a second toothed portion on the side facing the belt for engaging with a first toothed portion of the belt, and the other clamping member is a flat surface on the side facing the belt.

[0016] In one embodiment, the clamping member is provided with a limiting member on the side opposite to the connecting plate, the limiting member being used to abut against the side of the belt opposite to the connecting plate.

[0017] In one embodiment, the clamping element is a metal component.

[0018] An elevator, the elevator including the belt clamping assembly.

[0019] The aforementioned belt clamping assembly and elevator, on the one hand, compared with the related technology of directly locking and fixing the two ends of the belt to the connecting plate by locking members, in this application, the two ends of the belt can be clamped and fixed by the first locking member and two clamping members, so that the belt, the first locking member and the two clamping members are combined into a whole and form a closed loop belt; then, the tension of the belt is adjusted by the tensioning device. After the tension is adjusted, the belt is slid horizontally so that the two clamping members are aligned with the connecting plate, and the two clamping members and the connecting plate are locked and fixed by the second locking member. It can be seen that there is no need to repeatedly disassemble and assemble the belt to adjust the tension as in the related technology, and the assembly efficiency is higher; on the other hand, since a first adjusting shim is provided between the clamping members and the connecting plate, the first adjusting shim can adjust the distance between the two clamping members and the connecting plate, thereby adjusting the position of the belt in the direction perpendicular to the door panel, that is, adjusting the distance between the belt and the flange edge of the pulley, which can avoid friction noise caused by the distance between the belt and the flange edge being too small, and the adjustment operation is more convenient. Attached Figure Description

[0020] Figure 1 This is a structural diagram of an elevator according to an embodiment of this application.

[0021] Figure 2 This is a front view structural diagram of a connecting plate, belt, and belt clamping assembly according to an embodiment of this application.

[0022] Figure 3 This is a side view of the connecting plate and belt clamping assembly according to an embodiment of this application.

[0023] Figure 4 This is a top view of a clamping member of a belt clamping assembly according to an embodiment of this application.

[0024] Figure 5 for Figure 4 The front view of the clamping component is shown.

[0025] Figure 6 This is a top view of another clamping member of a belt clamping assembly according to an embodiment of this application.

[0026] Figure 7 for Figure 6 The front view of the clamping component is shown.

[0027] Figure 8 This is a front view structural diagram of a belt clamping assembly according to an embodiment of this application.

[0028] Figure 9 for Figure 8 The diagram shows a rear view of the belt clamping assembly.

[0029] Figure 10This is a working diagram of a belt clamping assembly according to an embodiment of this application.

[0030] Figure 11 for Figure 10 The diagram shows an enlarged view of the structure at point A.

[0031] Figure 12 This is another working diagram of a belt clamping assembly according to an embodiment of this application.

[0032] Figure 13 for Figure 12 The diagram shows an enlarged view of the structure at point B.

[0033] Figure 14 This is a structural diagram of a motor and belt according to an embodiment of this application.

[0034] 10. Car door sill; 20. Guide rail; 30. Motor; 31. Pulley; 311. Flange edge; 40. Tensioning device; 50. Belt; 51. First toothed part; 60. Door hanging plate; 70. Connecting plate; 80. Door panel; 90. Belt clamping assembly; 91. Clamping part; 911. Mounting hole; 9111. First recess; 912. Positioning groove; 9121. Second recess; 92. First locking part; 913. Positioning protrusion; 914. Positioning recess; 915. Second toothed part; 916. Limiting part; 917. Assembly hole; 93. Second locking part; 931. Bolt; 9311. Head; 9312. Rod; 932. Nut; 94. First adjusting pad; 95. Second adjusting pad. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] It should be noted that, for ease of description and understanding, the terms "front", "back", "up", "down", "left" and "right" in this embodiment refer to the actual state of the elevator during use. The direction in which the elevator door faces the user inside the elevator is "front", the direction in which it faces away from the user is "back", and the vertical direction is "up" and "down".

[0037] See Figure 1 and Figure 14 , Figure 1This diagram illustrates the structure of an elevator according to an embodiment of this application. The elevator provided in this embodiment includes a car door structure and a landing door structure. The car door structure includes: a car door sill 10, a guide rail 20, a motor 30, a tensioning device 40, a belt 50, a door hanger plate 60, a connecting plate 70, a door panel 80, and a door knife. The guide rail 20, motor 30, and tensioning device 40 are all mounted on the car door sill 10. The motor 30 has a pulley 31, and the belt 50 is wound around the pulley 31. The motor 30 drives the pulley 31 to rotate, causing the belt 50 to move back and forth. The belt 50 is also connected to the tensioning device 40, which can adjust the tension of the belt 50. The belt 50 is also connected to the connecting plate 70, which is connected to the door hanger plate 60, and the door hanger plate 60 is connected to the door panel 80. The door hanger plate 60 is mounted on the guide rail 20 and moves along the guide direction of the guide rail 20. When the belt 50 moves back and forth, it drives the door panel 80 to move through the connecting plate 70 and the door hanging plate 60, thereby realizing the door closing and opening actions. In addition, the door knife is connected to the door hanging plate 60, and the door knife also meshes with the landing door lock roller of the landing door structure to realize the linkage between the landing door structure and the car door structure.

[0038] Optionally, two door panels 80, two door hanging plates 60, and two connecting plates 70 are provided. The two door panels 80 are arranged along the left and right direction of the elevator, and the two door hanging plates 60 and the two connecting plates 70 are respectively set to correspond to the two door panels 80. When the motor 30 is working, it can drive the two door panels 80 to move towards each other to close the door, and move away from each other to open the door.

[0039] Please see Figure 2 The belt 50 is configured as an open belt, that is, a non-closed loop belt; in other words, the belt 50 has two opposite ends before assembly. Correspondingly, the elevator also includes a belt clamping assembly 90. The opposite ends of the belt 50 are connected by the belt clamping assembly 90, which is also connected to the connecting plate 70.

[0040] Please see Figure 2 , Figure 3 , Figure 10 and Figure 11 In some embodiments of this application, the belt clamping assembly 90 includes two clamping members 91, a first locking member 92, a second locking member 93, and a first adjusting pad 94. One side of each clamping member 91 is used to clamp one end of a belt 50, and the other side is used to clamp the other end of the belt 50. The first locking member 92 is used to fix the two clamping members 91 together. The second locking member 93 is used to lock the two clamping members 91 to the connecting plate 70. The first adjusting pad 94 is disposed between the clamping members 91 and the connecting plate 70, and is used to adjust the distance between the two clamping members 91 and the connecting plate 70.

[0041] The aforementioned elevator and belt clamping assembly 90, on the one hand, compared to the related technology where the two ends of the belt 50 are directly locked and fixed to the connecting plate 70 by locking members, in this application, the two ends of the belt 50 can be clamped and fixed firstly by the first locking member 92 and the two clamping members 91, so that the belt 50, the first locking member 92 and the two clamping members 91 are combined into a whole and form a closed loop belt; then, the tension of the belt 50 is adjusted by the tensioning device 40. After the tension is adjusted, the belt 50 is slid horizontally so that the two clamping members 91 are aligned with the connecting plate 70, and the two clamping members 91 are clamped together. 1. The belt 50 is locked and fixed to the connecting plate 70 by the second locking member 93. It can be seen that there is no need to repeatedly disassemble and assemble the belt 50 to adjust the tension as in related technologies, and the assembly efficiency is higher. On the other hand, since the clamping member 91 and the connecting plate 70 are provided with the first adjusting shim 94, the first adjusting shim 94 can adjust the distance between the two clamping members 91 and the connecting plate 70, thereby adjusting the position of the belt 50 in the direction perpendicular to the door panel 80. That is, it can adjust the distance between the belt 50 and the flange edge 311 of the pulley 31, which can avoid friction noise caused by the distance between the belt 50 and the flange edge 311 being too small, and the adjustment operation is more convenient.

[0042] It should be noted that there are many ways to adjust the distance between the two clamping members 91 and the connecting plate 70 by adjusting the thickness of the first adjusting pad 94. For example, the distance between the two clamping members 91 and the connecting plate 70 can be adjusted by adjusting the thickness of the first adjusting pad 94; another example is that the distance between the two clamping members 91 and the connecting plate 70 can be adjusted by adjusting the number of pads.

[0043] Optionally, the number of the first adjusting pads 94 includes, but is not limited to, one or more, or multiple, such as two, three, four or other numbers.

[0044] Optionally, the first adjusting shim 94 may be, but is not limited to, a shim, a block, or a washer. The shape of the first adjusting shim 94 may be, but is not limited to, a circle, a square, a triangle, or other regular or irregular shapes, and can be flexibly adjusted and set according to actual needs.

[0045] Optionally, the clamping element may include, but is not limited to, a clamping block, a clamping plate, or other clamping structure.

[0046] In some embodiments, the first locking member 92 and the second locking member 93 are flexibly adjusted and set according to actual needs, and each is including but not limited to bolts, pins, rivets or snap-fit ​​components, etc.

[0047] Please see Figure 2 , Figure 3 and Figure 11To facilitate the assembly and disassembly of the belt 50, in this embodiment, the second locking member 93 includes a bolt 931 and a nut 932 disposed on the bolt 931. At least one clamping member 91, a first adjusting washer 94, and a connecting plate 70 are locked and fixed between the head 9311 of the bolt 931 and the nut 932. In other words, the bolt 931 passes through at least one clamping member 91, the first adjusting washer 94, and the connecting plate 70 in sequence before being connected and fixed to the nut 932.

[0048] Please see Figures 4 to 9 In one embodiment, the bolt 931 further includes a rod 9312 connected to the head 9311. At least one clamping member 91 is provided with a mounting hole 911 and a positioning groove 912 communicating with the mounting hole 911. The rod 9312 is correspondingly inserted into the mounting hole 911, and the head 9311 is correspondingly disposed in the positioning groove 912. The inner wall of the positioning groove 912 can restrict the rotation of the head 9311. Thus, when the bolt 931 is locked in place, the positioning groove 912 restricts the rotation of the bolt 931, which can effectively prevent the bolt 931 from loosening; in addition, it can also prevent the head 9311 of the bolt 931 from being exposed.

[0049] Optionally, the positioning groove 912 may match, for example, the outer peripheral contour of the head 9311. The axial cross-section of the positioning groove 912 may include, but is not limited to, an ellipse, a polygon, or other regular or irregular shapes, which can be flexibly adjusted and set according to actual needs. For example, a polygon may be a quadrilateral, pentagon, hexagon, etc.

[0050] Optionally, the two clamping members 91 have first recesses 9111 formed on their sides facing each other. The two first recesses 9111 are positioned correspondingly and cooperate to form mounting holes 911. The shank 9312 of the bolt 931 passes through the mounting hole 911, and after passing through the first adjusting shim 94 and the connecting plate 70, it is connected and fixed with the nut 932. Tightening the nut 932 can securely assemble the connecting plate 70, the first adjusting shim 94, and the two clamping members 91 together. The mounting hole 911 is, for example, a through hole with a circular axial cross-section, and is adapted to the shank 9312 of the bolt 931, thereby improving assembly stability.

[0051] Optionally, the two clamping members 91 also have second recesses 9121 formed on their sides facing each other. The two second recesses 9121 are positioned correspondingly and cooperate to form a positioning groove 912. The second recesses 9121 are located at the end of the clamping member 91 opposite to the connecting plate 70. The head 9311 of the screw is fixedly disposed in the positioning groove 912.

[0052] Please see Figure 2 and Figure 3In one embodiment, the first locking member 92 passes through two clamping members 91 sequentially and fixes the two clamping members 91 together. Optionally, the first locking member 92 is, for example, a bolt. The clamping members 91 are provided with mounting holes 917 corresponding to the bolts. There are two first locking members 92, which are located on opposite sides of the second locking member 93. In this way, the force is more evenly distributed, ensuring the locking stability of the two clamping members 91.

[0053] Based on the aforementioned embodiment, the second locking member 93 is fixed at the middle position of the clamping member 91.

[0054] Please see Figures 4 to 9 In one embodiment, one clamping member 91 has a positioning protrusion 913, and the other clamping member 91 has a positioning recess 914 that positions and engages with the positioning protrusion 913, with the positioning protrusion 913 located within the positioning recess 914. Thus, when the two clamping members 91 are combined, the positioning protrusion 913 and the positioning recess 914 cooperate with each other, improving the stability of the combined clamping members 91 and preventing them from sliding left or right. Furthermore, it ensures that the two first recesses 9111 are initially aligned and combined to form the mounting hole 911, and the two second recesses 9121 are initially aligned and combined to form the positioning groove 912.

[0055] Please see Figure 2 , Figure 8 and Figure 9 In one embodiment, one clamping member 91 has a second toothed portion 915 on its side facing the belt 50 for engaging with the first toothed portion 51 of the belt 50, while the other clamping member 91 is flat on its side facing the belt 50. Thus, the engagement of the first toothed portion 51 and the second toothed portion 915 stably clamps the opposite ends of the belt 50, effectively preventing the ends of the belt 50 from slipping out between the two clamping members 91.

[0056] Please see Figure 6 and Figure 7 Based on the aforementioned embodiment, a limiting member 916 is provided on the side of the clamping member 91 opposite to the connecting plate 70. The limiting member 916 is used to abut against the side of the belt 50 opposite to the connecting plate 70. Thus, during the assembly of the belt clamping assembly 90, the limiting member 916 abuts against and limits the side of the belt 50 opposite to the connecting plate 70, thereby positioning the opposite ends of the belt 50 and stably clamping the opposite ends of the belt 50 between the two clamping members 91, effectively preventing the ends of the belt 50 from falling off between the two clamping members 91.

[0057] Optionally, the limiting member 916 can be a limiting rib, which extends along the length direction parallel to the belt 50 and is disposed on one side of the clamping member 91; the limiting member 916 can also be multiple limiting protrusions, which are arranged sequentially along the length direction parallel to the belt 50 on one side of the clamping member 91.

[0058] It should be noted that the "limiting member 916" in this embodiment can be a part of the "clamping member 91", that is, the "limiting member 916" and the "other parts of the clamping member 91" are integrally formed; or it can be an independent component that can be separated from the "other parts of the clamping member 91", that is, the "limiting member 916" can be manufactured independently and then combined with the "other parts of the clamping member 91" to form a whole.

[0059] As an example, the limiting component 916 may be manufactured by injection molding or casting, and the specific process can be flexibly adjusted and set according to actual needs, without limitation here.

[0060] For example, the clamping member 91 may be, but is not limited to, a metal part. In this way, the clamping member 91 has high rigidity, which can ensure stability and is not easily damaged.

[0061] Optionally, the metal parts may include, but are not limited to, aluminum, steel, etc.

[0062] As some alternatives, the clamping component 91 can also be made of other materials, such as non-metallic parts, depending on actual needs.

[0063] Please refer to the following: Figure 12 and Figure 13 For example, the belt clamping assembly 90 also includes a second adjusting shim 95. The second adjusting shim 95 is disposed between the connecting plate 70 and the door hanging plate 60. Thus, by providing the second adjusting shim 95, the position of the connecting plate 70 can be adjusted, and consequently the distance between the belt 50 and the flange edge 311 of the pulley 31 can be adjusted.

[0064] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0065] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0067] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0068] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A belt clamping assembly, characterized in that, The belt clamping assembly includes: Two clamping members, one side of which is used to clamp one end of the belt and the other side is used to clamp the other end of the belt; A first locking member is used to fix the two clamping members together. A second locking member, used to lock and fix the two clamping members to the connecting plate; and A first adjusting pad is disposed between the clamping member and the connecting plate, and the first adjusting pad is used to adjust the distance between the two clamping members and the connecting plate.

2. The belt clamping assembly according to claim 1, characterized in that, The first adjusting shim is a shim, block, or washer; and / or, the first adjusting shim is one or more.

3. The belt clamping assembly according to claim 1, characterized in that, The second locking component includes a bolt and a nut disposed on the bolt; at least one first adjusting washer, the first adjusting washer and the connecting plate are locked and fixed between the head of the bolt and the nut.

4. The belt clamping assembly according to claim 3, characterized in that, The bolt also includes a rod connected to the head. At least one of the clamping members is provided with a mounting hole and a positioning groove communicating with the mounting hole. The rod is correspondingly inserted into the mounting hole, and the head is correspondingly disposed in the positioning groove. The inner wall of the positioning groove can restrict the rotation of the head.

5. The belt clamping assembly according to claim 1, characterized in that, The first locking member passes through the two clamping members in sequence and fixes the two clamping members together. There are two first locking members, which are located on opposite sides of the second locking member.

6. The belt clamping assembly according to claim 1, characterized in that, One of the clamping members is provided with a positioning protrusion, and the other clamping member is provided with a positioning recess that positions and cooperates with the positioning protrusion, wherein the positioning protrusion is disposed in the positioning recess.

7. The belt clamping assembly according to claim 1, characterized in that, One of the clamping members has a second toothed portion on the side facing the belt for engaging with the first toothed portion of the belt, and the other clamping member is a flat surface on the side facing the belt.

8. The belt clamping assembly according to claim 7, characterized in that, The clamping member is provided with a limiting member on the side opposite to the connecting plate, and the limiting member is used to abut against the side of the belt opposite to the connecting plate.

9. The belt clamping assembly according to claim 1, characterized in that, The clamping component is made of metal.

10. An elevator, characterized in that, The elevator includes a belt clamping assembly as described in any one of claims 1 to 9.

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