A guide shoe for a large-tonnage freight elevator

Abstract

The present invention discloses a guide shoe for a large-tonnage freight elevator, comprising: a guide shoe base, the guide shoe base including a middle vertical plate, a middle mounting groove provided in the middle vertical plate; an upper pressing device, the upper pressing device including an upper pressing screw, the upper pressing screw being rotatably connected in the middle mounting groove, the upper pressing screw being threadedly connected to an upper threaded block, the upper threaded block being hinged to an upper hinged rod, an upper slide groove being provided in the middle vertical plate, an upper plug rod being inserted in the upper slide groove, one end of the upper plug rod being fixed to an upper connecting rod, one end of the upper hinged rod being hinged to the upper connecting rod, and one end of the upper plug rod being fixed to an upper pressing bracket; a lower support frame, the lower support frame being arranged below the upper pressing device; an intermediate clamping device, the intermediate clamping device including an intermediate clamping screw, the intermediate clamping screw being rotatably connected in the middle mounting groove, the intermediate threaded block being threadedly connected to the intermediate clamping screw, and the intermediate clamping plate being fixed to the intermediate threaded block. The present invention can compress both the left and right sides and the upper and lower sides of a shoe lining.

Description

Technical Field

[0001] The invention belongs to the technical field of elevator accessories, and in particular relates to a guide shoe for a large-tonnage freight elevator. Background Art

[0002] The guide shoes of freight elevators are indispensable components on the elevator running tracks. They can fix the freight elevator car on the guide rails and limit the moving direction of the freight elevator car, so that the freight elevator car can only move up and down without horizontal shaking.

[0003] The patent with publication number CN216360333U discloses a sliding guide shoe for an economical freight elevator, comprising a guide shoe base, a guide shoe head and a guide shoe lining; the guide shoe head comprises a guide shoe plate, a first vertical plate, a second vertical plate, an upper fixing plate and a lower fixing plate, the guide shoe plate is arranged at the proximal end of the front end of the guide shoe base, the first vertical plate and the second vertical plate are arranged side by side on the front side of the guide shoe plate; the first vertical plate and the second vertical plate cooperate to form a guide shoe slot; the upper fixing plate is arranged on both sides proximal to the top of the guide shoe slot, the top surface of the upper fixing plate is detachably connected to the upper connecting plate; the upper connecting plate is provided with a first avoidance notch adapted for the elevator guide rail; the lower fixing plate is arranged on both sides proximal to the bottom end of the guide shoe slot; the bottom surface of the lower fixing plate is detachably connected to the lower connecting plate; the lower connecting plate is provided with a second avoidance notch adapted for the elevator guide rail; the upper connecting plate and the lower connecting plate cooperate to confine the guide shoe lining in the guide shoe slot.

[0004] The guide shoe lining is installed on the first vertical plate and the second vertical plate. Since the first vertical plate and the second vertical plate do not completely clamp the guide shoe lining, there will be a certain gap between the guide shoe lining and the first vertical plate and the second vertical plate. Due to the existence of the gap, the guide shoe lining will wear faster during the operation of the elevator, thereby affecting the service life of the guide shoe lining and causing the guide shoe lining to shake. Summary of the Invention

[0005] The object of the present invention is to provide a guide shoe for a large-tonnage freight elevator, which can better fix the shoe lining and increase the fixing strength.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a guide shoe for a large-tonnage freight elevator, comprising:

[0007] The guide shoe base includes a middle vertical plate with a middle mounting groove provided in the middle vertical plate;

[0008] The upper clamping device includes an upper clamping screw, which is rotatably connected to the middle mounting groove. The upper clamping screw is threadedly connected to an upper threaded block, and the upper threaded block is hinged with an upper hinged rod. An upper slide groove connected to the middle mounting groove is provided on the outer wall of the middle vertical plate. An upper insertion rod is inserted into the upper slide groove. An upper connecting rod is fixed to one end of the upper insertion rod extending into the middle mounting groove. An end of the upper hinged rod away from the upper threaded block is hinged to the upper connecting rod, and an upper clamping bracket is fixed to one end of the upper insertion rod extending out of the upper slide groove.

[0009] The lower support frame is arranged below the upper pressing device and is fixedly connected to the middle vertical plate;

[0010] The intermediate clamping device includes an intermediate clamping screw, which is rotatably connected in the intermediate mounting groove. The intermediate clamping screw is provided with an intermediate positive thread and an intermediate reverse thread. The intermediate positive thread and the intermediate reverse thread are both threadedly connected with an intermediate thread block. The side wall of the intermediate vertical plate is provided with an intermediate slide groove corresponding to the two intermediate thread blocks. An intermediate connecting rod extending out of the intermediate slide groove is fixed on the intermediate thread block. An intermediate clamping plate is fixed to one end of the intermediate connecting rod extending out of the intermediate slide groove. A front baffle is provided on the side of the intermediate clamping plate away from the intermediate vertical plate.

[0011] Furthermore, a baffle plug-in plate is provided on the front baffle, a baffle slot is provided on the middle clamping plate for the baffle plug-in plate to be plugged in, the baffle plug-in plate is plugged into the baffle slot, and a front clamping device for driving the front baffle to move is provided on the middle vertical plate.

[0012] Furthermore, a middle side through groove is provided on the side wall of the middle clamping plate, a side connecting rod passing through the middle side through groove is fixed on the side wall of the baffle plug plate, a compression spring is installed in the baffle slot, and the compression spring is arranged between the bottom surface of the baffle slot and the baffle plug plate.

[0013] The front connecting rod is fixed with an extrusion through-groove, and an extrusion seat is fixed on the extrusion through-groove, and the extrusion seat is rotatably connected with an extrusion roller that can be tangent to the extrusion inclined surface.

[0014] Furthermore, the ends of the upper pressing screw, the middle clamping screw and the front clamping screw extending out of the middle mounting groove are all fixed with rotating handles.

[0015] Furthermore, the upper pressing screw is provided with an upper positive thread and an upper reverse thread, and the upper pressing device includes two upper thread blocks, which are respectively connected to the upper positive thread and the upper reverse thread, and the upper thread blocks are hinged to the upper connecting rod through an upper hinge rod.

[0016] Furthermore, a lower fixing plate is fixed to the lower end of the middle vertical plate, an upper fixing plate is fixed to the upper end of the middle vertical plate, and reinforcing ribs are fixed between the upper fixing plate and the lower fixing plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) Place the shoe lining on the lower support frame, then rotate the middle clamping screw to drive the two middle clamping plates to clamp the two sides of the shoe lining. The front baffle limits the front and rear position of the shoe lining. Then, by rotating the upper clamping screw, the upper threaded block drives the upper clamping bracket through the upper hinge rod to press the upper end of the shoe lining, thereby pressing the left and right sides and the upper and lower sides of the shoe lining, avoiding the shaking of the shoe lining during elevator operation and increasing the service life of the shoe lining;

[0019] (2) Turn the front clamping screw, which drives the two front threaded blocks to move toward the middle of the middle vertical plate. The extrusion roller squeezes the extrusion slope, thereby driving the front baffle to clamp the front side of the shoe lining, and fixing the shoe lining more firmly on the middle vertical plate;

[0020] (3) The driving components of the upper clamping device, the middle clamping device and the front clamping device can be installed in an intermediate mounting groove, and the structure is simpler and more compact;

[0021] (4) By setting reinforcing ribs, the overall strength of the guide shoe can be increased, making it suitable for large-tonnage freight elevators. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a guide shoe for a large-tonnage freight elevator according to the present invention;

[0023] Figure 2 for Figure 1 A partial enlarged view of point I in the middle;

[0024] Figure 3 for Figure 1 Top view of

[0025] Figure 4 for Figure 3 Cross-section at AA;

[0026] Figure 5 for Figure 3 Cross-section at the middle BB;

[0027] Figure 6 It is a structural diagram of the guide shoe base;

[0028] Figure 7 Schematic diagram of the structure when the shoe lining is removed from the guide shoe of the freight elevator;

[0029] Figure 8 for Figure 7 Schematic diagram of the structure when the guide shoe base is removed.

[0030] In the figure: 1, middle vertical plate; 2, middle mounting groove; 3, upper clamping screw; 4, upper threaded block; 5, upper hinge rod; 6, upper slide groove; 7, upper plug rod; 8, upper connecting rod; 9, upper clamping bracket; 10, lower support frame; 11, middle clamping screw; 12, middle threaded block; 13, middle slide groove; 14, middle connecting rod; 15, middle clamping plate; 16, front baffle; 17, baffle insert; 18, baffle slot; 19, Front clamping screw; 20, front threaded block; 21, front slide; 22, front connecting rod; 23, middle side through groove; 24, side connecting rod; 25, compression spring; 26, driven groove; 27, extrusion slope; 28, extrusion through groove; 29, extrusion through rod; 30, extrusion seat; 31, extrusion roller; 32, rotating handle; 33, lower fixed plate; 34, upper fixed plate; 35, reinforcing rib; 36, boot lining; 37, waist groove. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figures 1-8 The present invention provides a technical solution for guide shoes of large-tonnage freight elevators.

[0033] A guide shoe for a large-tonnage freight elevator, comprising:

[0034] The guide shoe base includes a middle vertical plate 1, and a middle mounting groove 2 is provided in the middle vertical plate 1;

[0035] The upper clamping device includes an upper clamping screw 3, which is rotatably connected to the middle mounting groove 2. The upper clamping screw 3 is threadedly connected to an upper threaded block 4, and an upper hinged rod 5 is hinged on the upper threaded block 4. An upper slide groove 6 communicating with the middle mounting groove 2 is provided on the outer wall of the middle vertical plate 1. An upper insertion rod 7 is inserted into the upper slide groove 6. An upper connecting rod 8 is fixed to one end of the upper insertion rod 7 extending into the middle mounting groove 2. An end of the upper hinged rod 5 away from the upper threaded block 4 is hinged to the upper connecting rod 8. An upper clamping bracket 9 is fixed to one end of the upper insertion rod 7 extending out of the upper slide groove 6. The upper insertion rod 7 can slide up and down in the upper slide groove 6;

[0036] The lower support frame 10 is arranged below the upper pressing device and is fixedly connected to the middle vertical plate 1;

[0037] The intermediate clamping device includes an intermediate clamping screw 11, which is rotatably connected in the intermediate mounting groove 2. The intermediate clamping screw 11 is provided with an intermediate positive thread and an intermediate reverse thread. The intermediate positive thread and the intermediate reverse thread are both threadedly connected with an intermediate thread block 12. The side wall of the intermediate vertical plate 1 is provided with an intermediate slide groove 13 corresponding to the two intermediate thread blocks 12. An intermediate connecting rod 14 extending from the intermediate slide groove 13 is fixed on the intermediate thread block 12. An intermediate clamping plate 15 is fixed to one end of the intermediate connecting rod 14 extending from the intermediate slide groove 13. A front baffle 16 is provided on the side of the intermediate clamping plate 15 away from the intermediate vertical plate 1.

[0038] When the shoe lining 36 needs to be installed on the guide shoe, the shoe lining 36 is first placed on the lower support frame 10, and then the middle clamping screw 11 is rotated, thereby driving the two middle threaded blocks 12 to move toward the middle position of the middle vertical plate 1 at the same time, thereby driving the two middle clamping plates 15 to clamp the two sides of the shoe lining 36, and the front baffle 16 limits the front and rear position of the shoe lining 36; then by rotating the upper clamping screw 3, the upper clamping screw 3 drives the upper threaded block 4 to move toward the middle position of the middle vertical plate 1, and the upper threaded block 4 drives the upper clamping bracket 9 through the upper hinge rod 5 to press the upper end of the shoe lining 36, thereby pressing the left and right sides and the upper and lower sides of the shoe lining 36, avoiding shaking of the shoe lining 36 during elevator operation and increasing the service life of the shoe lining 36.

[0039] In addition, the shoe lining 36 can be easily replaced by rotating the middle clamping rod and the upper pressing screw 3. Another advantage is that the upper pressing device and the middle clamping device can be installed in the middle mounting groove 2, which has a simple structure and saves space.

[0040] In order to better limit the boot lining 36, a baffle plug-in plate 17 is provided on the front baffle 16, and a baffle slot 18 for the baffle plug-in plate 17 to be inserted is provided on the middle clamping plate 15. The baffle plug-in plate 17 is inserted into the baffle slot 18, and the baffle plug-in plate 17 can move relative to the baffle slot 18. A front clamping device for driving the front baffle 16 to move is provided on the middle vertical plate 1.

[0041] The front clamping device includes a front clamping screw 19, which is rotatably connected in the middle mounting groove 2. The front clamping screw 19 is located below the middle clamping screw 11. The front clamping screw 19 is provided with a front positive thread and a front negative thread. The front positive thread and the front negative thread are both threadedly connected with a front thread block 20. The side wall of the middle vertical plate 1 is provided with a front slide groove 21 corresponding to the two front thread blocks 20. A front connecting rod 22 extending from the front slide groove 21 is fixed to the front thread block 20, and the front connecting rod 22 corresponds one-to-one to the middle clamping plate 15.

[0042] The side wall of the middle clamping plate 15 is provided with an middle side through groove 23, and the side connecting rod 24 passing through the middle side through groove 23 is fixed on the side wall of the baffle insert 17. A compression spring 25 is installed in the baffle slot 18, and the compression spring 25 is arranged between the bottom surface of the baffle slot 18 and the baffle insert 17. A driven groove 26 is provided on the side connecting rod 24, and an extrusion slope 27 is provided on the inner wall of the driven groove 26 near the middle vertical plate 1. The extrusion slope 27 is inclined toward the side of the middle vertical plate 1 from the end close to the middle clamping plate 15 to the end away from the middle clamping plate 15. An extrusion through groove 28 is provided on the extrusion slope 27, and an extrusion through groove 28 is fixed on the front connecting rod 22. An extrusion through groove 29 that can pass through the extrusion through groove 28 is fixed on the extrusion through rod 29. An extrusion seat 30 is fixed on the extrusion through rod 29, and an extrusion roller 31 that can be tangent to the extrusion slope 27 is rotatably connected to the extrusion seat 30.

[0043] After the two middle clamping plates 15 clamp the shoe lining 36, the front clamping screw 19 is rotated, and the front clamping screw 19 drives the two front threaded blocks 20 to move toward the middle of the middle vertical plate 1, thereby driving the extrusion roller 31 on the extrusion seat 30 to contact the extrusion inclined surface 27, and then the front threaded block 20 continues to move toward the middle position of the middle vertical plate 1, and the extrusion roller 31 squeezes the extrusion inclined surface 27, thereby driving the front baffle 16 to clamp the front side of the shoe lining 36, and fixing the shoe lining 36 more firmly on the middle vertical plate 1.

[0044] When the boot liner 36 needs to be replaced, only the front clamping screw 19 needs to be rotated in the opposite direction. At this time, the extrusion roller 31 gradually moves away from the corresponding middle clamping plate 15, and the compression spring 25 elastically drives the baffle insert 17 to move toward the outside of the baffle slot 18, thereby causing the front baffle 16 to leave the boot liner 36.

[0045] The drive components of the upper clamping device, the intermediate clamping device, and the front clamping device can be installed in a middle mounting groove 2, making the structure simpler and more compact. In addition, the shoe liner 36 is clamped in all directions, making the clamping more secure. When disassembling, only the upper clamping screw 3, the intermediate clamping screw 11, and the front clamping screw 19 need to be rotated to achieve disassembly and assembly, which is very convenient.

[0046] The ends of the upper pressing screw 3, the middle clamping screw 11 and the front clamping screw 19 extending out of the middle mounting groove 2 are all fixed with a rotating handle 32 for easy rotation.

[0047] The upper clamping screw 3 is provided with an upper positive thread and an upper reverse thread. The upper clamping device includes two upper thread blocks 4, which are respectively connected to the upper positive thread and the upper reverse thread. The upper thread blocks 4 are hinged to the upper connecting rod 8 through the upper hinge rod 5, so that the upper connecting rod 8 can be pushed up and down more stably.

[0048] A lower fixed plate 33 is fixed to the lower end of the middle vertical plate 1, an upper fixed plate 34 is fixed to the upper end of the middle vertical plate 1, reinforcing ribs 35 are fixed between the upper fixed plate 34 and the lower fixed plate 33, and a waist-shaped groove 37 is provided on the lower fixed plate 33. By setting the reinforcing ribs 35, the overall strength of the guide shoe can be increased, which can be suitable for large-tonnage freight elevators.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A guide shoe for a large-tonnage freight elevator, characterized in that: include: A guide shoe base, the guide shoe base comprising a middle vertical plate, wherein a middle mounting groove is provided in the middle vertical plate; The upper clamping device comprises an upper clamping screw, the upper clamping screw is rotatably connected to the middle mounting groove, the upper clamping screw is threadedly connected to an upper threaded block, the upper threaded block is hingedly provided with an upper hinged rod, an upper slide groove connected to the middle mounting groove is provided on the outer wall of the middle vertical plate, an upper insertion rod is inserted into the upper slide groove, an upper connecting rod is fixed on one end of the upper insertion rod extending into the middle mounting groove, an end of the upper hinged rod away from the upper threaded block is hinged to the upper connecting rod, and an upper clamping bracket is fixed on one end of the upper insertion rod extending out of the upper slide groove; A lower support frame, the lower support frame is arranged below the upper pressing device, and the lower support frame is fixedly connected to the middle vertical plate; An intermediate clamping device, wherein the intermediate clamping device comprises an intermediate clamping screw, the intermediate clamping screw being rotatably connected in the intermediate mounting groove, the intermediate clamping screw being provided with an intermediate positive thread and an intermediate reverse thread, the intermediate positive thread and the intermediate reverse thread being threadedly connected with an intermediate thread block, an intermediate sliding groove corresponding to the two intermediate thread blocks being provided on the side wall of the intermediate vertical plate, an intermediate connecting rod extending out of the intermediate sliding groove being fixed to the intermediate thread block, an intermediate clamping plate being fixed to one end of the intermediate connecting rod extending out of the intermediate sliding groove, and a front baffle being provided on the side of the intermediate clamping plate away from the intermediate vertical plate; The front baffle is provided with a baffle plug-in plate, the middle clamping plate is provided with a baffle slot for the baffle plug-in plate to be plugged in, the baffle plug-in plate is plugged into the baffle slot, and the middle vertical plate is provided with a front clamping device for driving the front baffle to move; The side wall of the middle clamping plate is provided with a middle side through-groove, the side wall of the baffle insert is fixed with a side connecting rod passing through the middle side through-groove, a compression spring is installed in the baffle slot, and the compression spring is arranged between the bottom surface of the baffle slot and the baffle insert; The front connecting rod is provided with a driven groove, and the driven groove is provided with an extrusion inclined surface near the inner wall of the middle vertical plate, and the extrusion inclined surface is inclined toward the side of the middle vertical plate from one end close to the middle clamping plate to the end away from the middle clamping plate, and the extrusion inclined surface is provided with an extrusion through-groove, and an extrusion through-groove is fixed on the front connecting rod, and an extrusion seat is fixed on the extrusion through-rod, and an extrusion roller tangent to the extrusion inclined surface is rotatably connected to the extrusion seat; The shoe lining is placed on the lower support frame, two middle clamping plates clamp both sides of the shoe lining, and the upper pressing bracket presses the upper end of the shoe lining.

2. A guide shoe for a large-tonnage freight elevator according to claim 1, characterized in that: Ends of the upper pressing screw, the middle clamping screw, and the front clamping screw extending out of the middle mounting slot are all fixed with rotating handles.

3. A guide shoe for a large-tonnage freight elevator according to claim 1, characterized in that: The upper pressing screw is provided with an upper positive thread and an upper reverse thread, and the upper pressing device includes two upper thread blocks, which are respectively connected to the upper positive thread and the upper reverse thread, and the upper thread blocks are hinged to the upper connecting rod through an upper hinge rod.

4. A guide shoe for a large-tonnage freight elevator according to claim 1, characterized in that: A lower fixing plate is fixed to the lower end of the middle vertical plate, an upper fixing plate is fixed to the upper end of the middle vertical plate, and a reinforcing rib is fixed between the upper fixing plate and the lower fixing plate.

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