Simple clamping tool for hand strap test

Abstract

The clamping tool comprises a clamping plate, a fixed assembly welding piece and a bolt, the clamping plate is arranged on the inner side of the fixed assembly welding piece, the clamping plate comprises a first top wall and a first side wall which are perpendicular to each other, the first top wall is used for being attached to the top face of a hand strap, the first side wall is used for being attached to the side face of the hand strap, and the first side wall is used for being attached to the side face of the hand strap. A plurality of blind holes are formed in the outer surface of the first side wall, the fixing assembly welding part comprises a fixing plate and a hook plate, the fixing plate comprises a second top wall parallel to the first top wall, a second side wall and a third side wall, the second side wall and the third side wall are perpendicularly arranged on the two sides of the second top wall, and the second side wall is parallel to the first side wall; the second side wall is provided with through threaded holes corresponding to the blind holes, the third side wall is used for being attached to the side face, away from the first side wall, of the hand strap, and bolts penetrate through the threaded holes and are inserted into the corresponding blind holes. The hand strap testing device is simple in structure, convenient to install, capable of achieving installation testing of hand straps of different sizes by adjusting the distance through the bolts, and easy and flexible to install and detach.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling, in particular to a clamping tooling for simple handrail belt testing. Background Art

[0002] The safety performance of escalators is the most important of their public transportation attributes, and the handrails of escalators are an important component to ensure the safety of passengers. The national standard 16899-2011 stipulates that "5.6.1 General Provisions: Each handrail device should be equipped with a running handrail on the top, and its running direction should be the same as that of the steps, pedals or belts. Under normal operating conditions, the running speed of the handrail relative to the actual speed of the steps, pedals or belts is allowed to be 0% to +2%."

[0003] When the escalator is running, passengers hold the handrails on both sides to stabilize their bodies. Their hands exert force to hold the handrails, which generates a pulling force in the opposite direction, thus bringing resistance to the handrails and affecting the running speed of the handrails. Whether the driving force design of the handrails is sufficient is often the fundamental reason for the safety of the handrails. Therefore, it is urgent for those skilled in the art to invent a clamping tool for handrail testing to meet the demand for measuring the driving force of the handrails. Utility Model Content

[0004] In view of the above-mentioned technical problems, the purpose of the utility model is to provide a simple clamping tool for handrail belt testing, so as to realize convenient and fast mechanical clamping of the handrail belt.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A simple clamping fixture for testing an armrest belt, comprising a clamping plate, a fixed assembly weldment and a bolt, wherein the clamping plate is arranged on the inner side of the fixed assembly weldment, the clamping plate comprises a first top wall and a first side wall perpendicular to each other, the first top wall is used to fit with the top surface of the armrest belt, the first side wall is used to fit with the side surface of the armrest belt, and the outer surface of the first side wall is provided with a plurality of blind holes; the fixed assembly weldment comprises a fixing plate and a hook plate, the fixing plate comprises a second top wall parallel to the first top wall and a second side wall and a third side wall vertically arranged on both sides of the second top wall, the hook plate is arranged on the second top wall, the hook plate is provided with a hook hole, the second side wall is parallel to the first side wall, the second side wall is provided with a through threaded hole corresponding to the blind hole, the third side wall is used to fit with the side surface of the handrail belt away from the first side wall, the bolt passes through the threaded hole and is inserted into the corresponding blind hole, and the distance between the first side wall and the third side wall can be adjusted by rotating the bolt.

[0007] Preferably, the first top wall is in contact with the second top wall.

[0008] Preferably, there are three blind holes, which are spaced apart along the length direction of the clamping plate.

[0009] Preferably, the hook hole is a long waist hole.

[0010] Preferably, the clamping plate and the fixing plate are both sheet metal bending parts.

[0011] Preferably, the hook plate is connected to the second top wall by welding.

[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0013] The utility model discloses a simple clamping tool for testing handrail belts, comprising a clamping plate, a fixed assembly weldment and a bolt. The clamping plate is arranged on the inner side of the fixed assembly weldment. The clamping plate comprises a first top wall and a first side wall which are perpendicular to each other. The first top wall is used to fit with the top surface of the handrail belt. The first side wall is used to fit with the side surface of the handrail belt. The outer surface of the first side wall is provided with a plurality of blind holes. The fixed assembly weldment comprises a fixed plate and a hook plate. The fixed plate comprises a second top wall which is parallel to the first top wall and a second side wall and a third side wall which are perpendicularly arranged on both sides of the second top wall. The second side wall is parallel to the first side wall. The second side wall is provided with a through threaded hole corresponding to the blind hole; the third side wall is used to abut against the side of the handrail away from the first side wall; the bolt passes through the threaded hole and is inserted into the corresponding blind hole; the distance between the first side wall and the third side wall can be adjusted by rotating the bolt; the structure is simple and the installation is convenient; only two components and bolts are required to complete the installation; the operation is simple; the installation can be completed by one tester; a split structure is adopted, and the combination of fixed assembly weldments and splints is combined; the spacing is adjusted by bolts; the installation and testing of handrails of different sizes can be realized; the installation and disassembly are simple and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0015] Attached Figure 1 A three-dimensional diagram of a clamping tool for testing a simple handrail belt of the utility model;

[0016] Attached Figure 2 It is a side view of the clamping tool for testing the simple handrail belt of the utility model;

[0017] Attached Figure 3 A three-dimensional diagram of a clamping plate of a simple handrail test fixture of the utility model;

[0018] Attached Figure 4 A three-dimensional diagram of the fixed assembly welding parts of the clamping fixture for testing the simple handrail belt of the utility model;

[0019] Attached Figure 5The utility model is a schematic diagram of the use of a clamping tool for testing a simple handrail.

[0020] Among them: 1. clamping plate; 11. first top wall; 12. first side wall; 13. blind hole; 2. fixed assembly weldment; 21. fixing plate; 211. second top wall; 212. second side wall; 213. third side wall; 22. hook plate; 221. hook hole; 3. bolt; 4. handrail; 5. threaded hole; 6. measuring tool; 7. handrail bracket. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0022] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] As attached Figure 1 The utility model is shown as a simple clamping tool for testing handrails, which includes a clamping plate 1, a fixed assembly weldment 2 and a bolt 3. The clamping plate 1 is located on the inner side of the fixed assembly weldment 2. Figure 3 As shown, the clamping plate 1 includes a first top wall 11 and a first side wall 12 which are perpendicular to each other. The first top wall 11 is used to fit with the top surface of the handrail 4, and the first side wall 12 is used to fit with the side surface of the handrail 4. The outer surface of the first side wall 12 is processed with a plurality of blind holes 13. Figure 4 As shown, the fixed assembly weldment 2 includes a fixed plate 21 and a hook plate 22. The fixed plate 21 includes a second top wall 211 parallel to the first top wall 11 and a second side wall 212 and a third side wall 213 vertically arranged on both sides of the second top wall 211. The hook plate 22 is located on the second top wall 211. The hook plate 22 is welded to the second top wall 211. A hook hole 221 is processed on the hook plate 22. The hook hole 221 is a long waist hole. The hook hole 221 is used to connect the measuring tool 6. As shown in the attached Figure 2As shown, the second side wall 212 of the fixing plate 21 is parallel to the first side wall 12, and a through threaded hole 5 corresponding to the blind hole 13 is formed on the second side wall 212. The third side wall 213 is used to abut against the side of the handrail 4 away from the first side wall 12. The bolt 3 passes through the threaded hole 5 and is inserted into the corresponding blind hole 13. The blind hole 13 limits the position of the bolt 3 to prevent the bolt 3 from offsetting and shaking and affecting the clamping effect. The distance between the first side wall 12 and the third side wall 213 can be adjusted by rotating the bolt 3, so that the clamping tool can mechanically clamp the handrail 4 so as to test the driving force of the handrail 4.

[0024] In this embodiment, the first top wall 11 fits with the second top wall 211, making the installation more stable. There are three blind holes 13, which are arranged at intervals along the length direction of the clamping plate 1, so that the clamping plate 1 and the fixed assembly weldment 2 form a uniform clamping force on the handrail 4. The clamping plate 1 and the fixed plate 21 are both sheet metal bending parts with simple structure and convenient processing.

[0025] When in use, first place the splint 1 on the handrail 4, then place the third side wall 213 of the fixed assembly weld 2 close to the side of the handrail 4 away from the first side wall 12, so that the second top wall 211 of the fixed assembly weld 2 fits with the first top wall 11 of the splint 1. At this time, the threaded hole 5 on the second side wall 212 is concentric with the blind hole 13 on the first side wall 12. After screwing the bolt 3 into the threaded hole 5 to fix it, continue to tighten until the bolt 3 presses against the blind hole 13 on the splint 1. At this time, the entire clamping fixture is pre-fixed, and the handrail 4 and the handrail bracket 7 are squeezed and kept synchronously fixed through friction, and the fixing force can be adjusted by the bolt 3. At this time, the simple handrail 4 test clamping fixture is installed, which can be indicated by the measuring tool 6, as shown in the attached figure. Figure 5 As shown, the measuring tool 6 is hooked on the long waist hole of the hook plate 22, and the subsequent driving force test of the handrail belt 4 can be carried out without removing the handrail bracket 7 and the handrail cover plate 8 under the handrail belt 4.

[0026] The utility model has a simple clamping tool for testing the handrail belt 4, which has a simple structure and is easy to install. It only needs two components and a bolt 3 to complete the installation. The operation is simple and the installation can be completed by one tester. The split structure is adopted to fix the combination of the welded parts 2 and the clamping plate 1. The spacing is adjusted by the bolt 3, so the installation test of handrail belts 4 of different sizes can be realized. The installation and disassembly are simple and flexible, and there is no need to remove other structures related to the handrail belt 4, which is convenient for testing.

[0027] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A simple clamping tool for handrail belt testing, characterized in that: The present invention relates to a method of making the first end of an upper lateral wall of the handrail belt be connected with the support frame of the second end of the handrail belt to form a block diagram of a method of making the first end of an upper lateral wall of the handrail belt to be connected with the support frame of the second end of the handrail belt to form a block diagram of a method of making the first end of an upper lateral wall of the handrail belt to be connected with the support frame of the second end of the handrail belt to form a block diagram of a method of making the first end of an upper lateral wall of the handrail belt to be connected with the support frame of the second end of the handrail belt to form a block diagram of a method of making the 2. The simple handrail test clamping tool according to claim 1, characterized in that: The first top wall is in contact with the second top wall.

3. The simple handrail test clamping tool according to claim 1, characterized in that: There are three blind holes, which are arranged at intervals along the length direction of the clamping plate.

4. The simple handrail test clamping tool according to claim 1, characterized in that: The hook hole is a long waist hole.

5. The simple handrail test clamping tool according to claim 1, characterized in that: The clamping plate and the fixing plate are both sheet metal bending parts.

6. The simple handrail test clamping tool according to claim 1, characterized in that: The hook plate is connected to the second top wall by welding.

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