Escalator hand strap lip strength detection device
By designing a portable escalator handrail with lip strength detection device, the gravity of the weight is transformed into tension by using ropes and fixed pulleys, the problem of large and high cost in existing equipment is solved, and portable strength detection is realized, which expands the use scenario and reduces costs.
Patent Information
- Application Number
- CN202420018025.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-03
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-01-03
AI Technical Summary
The existing escalator handrail lip strength detection equipment is large and costly, making it difficult to carry and use on a daily basis, limiting its use scenarios.
An escalator handrail with lip strength detection device is designed, which converts the gravity of the weight into a pulling force on the lip through ropes and fixed pulleys, and combines a dynamometer and hook to achieve portable strength detection.
A simple and practical, small-sized lip strength detection device is realized, which is easy to use in daily maintenance, reduces quality inspection costs, and expands the use scenarios of the equipment.
Smart Images
Figure CN222561409U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of escalators, and in particular to a device for detecting the lip strength of an escalator handrail. Background Art
[0002] The handrail of an escalator is an important part of the escalator. It moves at the same speed as the steps, so that passengers can stand on the steps and move with the steps while putting their hands on the handrail, which enhances their sense of security. The handrail is generally made of rubber, and includes a flat plate-shaped main body and lips on both sides, so that the cross-section of the handrail is a "C"-shaped structure. When installing the handrail, the two lips of the handrail are inserted into the side panels of the escalator and are driven by the internal motor of the escalator to move.
[0003] Since the handrail needs to rely on the strength of the lip itself to achieve fixation, the strength test and fatigue test of the lip are particularly important. A lip with too low strength may not be able to limit and fix the handrail, and after long-term use, it is likely to cause material fatigue and loosen, causing safety accidents and endangering the safety of equipment and personnel.
[0004] Therefore, the lip strength of newly manufactured handrails is currently tested. Generally, they need to be placed in special equipment to apply tension to the lips on both sides of the handrail to test the tensile strength of the lips, and perform cyclic force tests to fatigue the lips. However, these devices are generally large and expensive, which increases the cost of quality inspection. Moreover, for some handrails that are already in use, when their lip strength needs to be tested during daily maintenance, such equipment is not easy to carry, which greatly limits its use scenarios. Summary of the invention
[0005] The purpose of the present application is to solve at least one of the technical problems existing in the prior art and to provide an escalator handrail lip strength detection device which is easy to carry and can be used in daily maintenance.
[0006] According to an embodiment of the present application, a device for detecting the lip strength of an escalator handrail is provided, comprising:
[0007] A base, wherein a slide rail and a fixed pulley are arranged on the base, and the fixed pulley is arranged in the axial direction of the slide rail;
[0008] A hook, wherein the hook is buckled with the lip of the handrail to be tested;
[0009] A dynamometer, the dynamometer is slidably connected to the slide rail, and one end of the dynamometer is connected to the hook;
[0010] A force-applying assembly, the force-applying assembly comprising a weight and a rope, two ends of the rope are respectively connected to the dynamometer and the weight, and the rope is wound around the fixed pulley;
[0011] Wherein, at least one lip of the handrail to be tested is connected to the dynamometer, and the gravity of the weight is converted into a pulling force on the lip via the rope and the fixed pulley.
[0012] According to an embodiment of the present application, further, a fixing seat for fixing the handrail belt to be tested is provided on the base, and one of the lips of the handrail belt to be tested is pulled to undergo strength testing.
[0013] According to an embodiment of the present application, further, the handrail belt to be tested can move freely on the base, there are two hooks and they are respectively buckled with the two lips of the handrail belt to be tested in a one-to-one correspondence, one of the hooks is fixedly connected to the base, and the other hook is connected to the force gauge.
[0014] According to the embodiment of the present application, further, the handrail belt to be tested can move freely on the base, the hooks are two in number and are buckled with the two lips of the handrail belt to be tested one by one, the force gauge and the force-applying assembly are two in number and are connected with the two hooks one by one, so as to perform strength testing on the two lips of the handrail belt to be tested at the same time.
[0015] According to an embodiment of the present application, further, the base is a stainless steel piece.
[0016] According to an embodiment of the present application, further, the slide rail is specifically a slide groove, and the dynamometer slides in the slide groove.
[0017] According to an embodiment of the present application, further, the slide rail includes a track and a slider that are slidably connected to each other, the track is fixed to the base, and the dynamometer is connected to the slider.
[0018] According to an embodiment of the present application, further, the weight is replaced by a vibration device, and the vibration device can periodically apply tension to the rope, so as to detect the lip fatigue strength of the handrail belt to be tested.
[0019] According to an embodiment of the present application, further, the escalator handrail lip strength detection device also includes a measuring device, and the measuring device is used to detect the distance between the two lips of the handrail to be tested.
[0020] According to an embodiment of the present application, further, a scale is provided on the base, and the scale is used to display the distance between the two lips of the handrail to be tested.
[0021] The beneficial effects of the embodiments of the present application include at least: the present application converts the gravity of the weight into a pulling force on the lip of the handrail to be tested through a rope and a fixed pulley, and the entire device is simple, practical and small in size, and is easy to carry for convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief description of the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present application, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.
[0023] Figure 1 is a schematic cross-sectional view of a handrail;
[0024] Figure 2 This is a schematic structural diagram of a first embodiment of the escalator handrail lip strength detection device of the present application;
[0025] Figure 3 This is a schematic structural diagram of a second embodiment of the escalator handrail lip strength detection device of the present application;
[0026] Figure 4 This is a schematic structural diagram of a third embodiment of the escalator handrail lip strength detection device of the present application;
[0027] Figure 5 It is a schematic structural diagram of a fourth embodiment of the escalator handrail lip strength detection device of the present application.
[0028] Reference numerals: 100 - base, 110 - slide rail, 120 - fixed pulley, 200 - hook, 300 - dynamometer, 400 - force-applying assembly, 410 - weight, 420 - rope, 430 - vibration device, 500 - handrail to be tested, 510 - lip. DETAILED DESCRIPTION
[0029] This section will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.
[0030] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0031] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0032] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.
[0033] The handrail of an escalator is an important part of the escalator. It keeps the same moving speed as the steps, so that passengers can stand on the steps and move with the steps while putting their hands on the handrail, which enhances the passengers' sense of security. The handrail is generally made of rubber. Figure 1 The handrail comprises a main body in the form of a flat plate and lips 510 on both sides thereof, so that the cross section of the handrail is a "C"-shaped structure. When installing the handrail, the two lips 510 of the handrail are inserted into the side panels of the escalator and are driven by the internal motor of the escalator to move.
[0034] Since the handrail needs to be fixed by the strength of the lip 510, it is particularly important to perform strength and fatigue tests on the lip 510. A lip 510 with too low strength may not be able to limit and fix the handrail, and may also become loose due to material fatigue after long-term use, thereby causing safety accidents and endangering the safety of equipment and personnel.
[0035] Therefore, at present, the lip strength of newly manufactured handrails will be tested. Generally, they need to be placed in special equipment to apply tension to the lips 510 on both sides of the handrail to test the tensile strength of the lips, and perform cyclic force experiments to fatigue test the lips 510. However, these devices are generally large and expensive, which increases the cost of quality inspection. Moreover, for some handrails that are already in use, when their lip strength needs to be tested during daily maintenance, such equipment is not easy to carry, which greatly limits its use scenarios.
[0036] In this regard, the present application proposes an escalator handrail lip strength detection device, which converts the gravity of the weight 410 into a pulling force on the lip 510 of the handrail 500 to be tested through a rope 420 and a fixed pulley 120. Compared with traditional dedicated lip strength detection equipment, the present device is simple, practical, and small in size, and is easy to carry for maintenance.
[0037] Reference Figures 2 to 4 The lip strength detection device of the escalator handrail of the present application includes a base 100, a hook 200, a dynamometer 300 and a force-applying assembly 400. The base 100 is the main structure of the lip strength detection device of the escalator handrail, which is used to carry other components and the handrail 500 to be tested. The base 100 is a stainless steel part, so it has good structural strength and corrosion resistance, and has a longer service life. Specifically, a slide rail 110 and a fixed pulley 120 are arranged on the base 100, and the fixed pulley 120 is arranged in the axial direction of the slide rail 110.
[0038] The hook 200 is buckled with the lip 510 of the handrail 500 to be tested. Specifically, the hook 200 is a bent stainless steel sheet with a "C"-shaped hook structure formed at the end, so that it can be hooked with the lip 510 of the handrail 500 to be tested. When the hook 200 tends to move away from the handrail 500 to be tested, it can apply tension to the lip 510 of the handrail 500 to be tested, thereby causing the lip 510 to deform. The strength performance of the lip 510 can be subsequently calculated by measuring the deformation amplitude of the lip 510.
[0039] The dynamometer 300 is slidably connected to the slide rail 110 and can move along the axial direction of the slide rail 110, so that the moving direction of the dynamometer 300 can be limited by the slide rail 110. One end of the dynamometer 300 is connected to the hook 200 to detect the tension applied by the hook 200 to the lip 510.
[0040] The force applying assembly 400 is used to generate a pulling force on the lip 510. The force applying assembly 400 includes a weight 410 and a rope 420, both ends of the rope 420 are connected to the dynamometer 300 and the weight 410 respectively, and the rope 420 is wound around the fixed pulley 120. Among them, at least one lip 510 of the handrail belt 500 to be tested is connected to the dynamometer 300, and the gravity of the weight 410 is converted into a pulling force on the lip 510 through the rope 420 and the fixed pulley 120.
[0041] Further, regarding the slide rail 110, in some embodiments, the slide rail 110 is specifically a slide groove, and the dynamometer 300 slides in the slide groove; in other embodiments, the slide rail 110 includes a track and a slider that are slidably connected to each other, the track is fixed to the base 100, and the dynamometer 300 is connected to the slider, so that the dynamometer 300 slides through the slider. It is easy to understand that other forms of sliding methods can also be used to make the dynamometer 300 slide relative to the base 100, which will not be repeated here.
[0042] Furthermore, the lip strength detection device of the escalator handrail also includes a measuring device, which is used to detect the distance between the two lips 510 of the handrail 500 to be tested, so that the deformation amplitude of the lip 510 under tension can be understood through the measuring device, and the structural strength of the lip 510 can be reflected together with the dynamometer 300. As for the specific structure of the measuring device, in some embodiments, the measuring device is a measuring tool such as a vernier caliper, which obtains the distance between the two lips 510 by direct measurement; in other embodiments, the measuring device is a distance sensor, which is installed on one of the lips 510 and measures the relative distance of the other lip 510. In this embodiment, a scale is set on the base 100, and the distance between the two lips 510 of the handrail 500 to be tested is displayed by the scale.
[0043] Regarding the specific setting mode of the lip strength detection device of the escalator handrail, this application proposes four possible embodiments. However, it should be noted that the invention is not limited to the embodiments, and technicians familiar with the field can make various equivalent modifications or substitutions without violating the spirit of this application.
[0044] Reference Figure 2 In the first embodiment, a fixing seat for fixing the handrail belt 500 to be tested is provided on the base 100. After the handrail belt 500 to be tested is placed on the fixing seat, it can maintain a mutually fixed state with the base 100, thereby preventing the handrail belt 500 to be tested from moving relative to the base 100. The handrail belt 500 to be tested can be fixed by snap connection, bonding or clamping by a fixing seat, or other fixing methods that can fix the handrail belt 500 to be tested are adopted. The number of hooks 200, dynamometers 300 and force-applying components 400 are all one, and one of the lips 510 of the handrail belt 500 to be tested is pulled to undergo strength testing. After completing the test of the lip 510, the direction of the handrail belt 500 to be tested can be changed to continue testing the other lip 510.
[0045] Reference Figure 3In the second embodiment, the handrail belt 500 to be tested can move freely on the base 100 after being placed on the base 100. There are two hooks 200, which are respectively buckled with the two lips 510 of the handrail belt 500 to be tested in a one-to-one correspondence, one of which is fixedly connected to the base 100, and the other is connected to the dynamometer 300. Therefore, when the dynamometer 300 is connected to the weight 410 through the rope 420, the tension generated by the weight 410 separates the two lips 510, thereby realizing the strength test of the lips 510 of the handrail belt 500 to be tested.
[0046] Reference Figure 4 In the third embodiment, the handrail belt 500 to be tested can move freely on the base 100 after being placed on the base 100. There are two hooks 200, which are respectively buckled with the two lips 510 of the handrail belt 500 to be tested in a one-to-one correspondence. There are two dynamometers 300 and two force-applying components 400, which are respectively connected with the two hooks 200 in a one-to-one correspondence, so that the strength of the two lips 510 of the handrail belt 500 to be tested can be tested simultaneously.
[0047] Reference Figure 5 In the fourth embodiment, the weight 410 is replaced by a vibration device 430, and the vibration device 430 can periodically apply tension to the rope 420, so as to detect the fatigue strength of the lip 510 of the handrail belt 500 to be tested under long-term periodic force application.
[0048] The above is a specific description of the preferred implementation methods of the present application, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present application, and these equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.
Claims
1. An escalator handrail lip strength detection device, characterized in that: include: A base (100), wherein a slide rail (110) and a fixed pulley (120) are arranged on the base (100), and the fixed pulley (120) is arranged in the axial direction of the slide rail (110); A hook (200), wherein the hook (200) is buckled with a lip (510) of a handrail belt (500) to be tested; A dynamometer (300), the dynamometer (300) being slidably connected to the slide rail (110), and one end of the dynamometer (300) being connected to the hook (200); A force-applying assembly (400), the force-applying assembly (400) comprising a weight (410) and a rope (420), two ends of the rope (420) being respectively connected to the dynamometer (300) and the weight (410), and the rope (420) being wound around the fixed pulley (120); At least one lip (510) of the handrail belt (500) to be tested is connected to the dynamometer (300), and the gravity of the weight (410) is converted into a pulling force on the lip (510) via the rope (420) and the fixed pulley (120).
2. The escalator handrail lip strength detection device according to claim 1 is characterized in that: The base (100) is provided with a fixing seat for fixing the handrail belt (500) to be tested, and one of the lips (510) of the handrail belt (500) to be tested is pulled to receive strength testing.
3. The escalator handrail lip strength detection device according to claim 1 is characterized in that: The handrail belt (500) to be tested can move freely on the base (100), and there are two hooks (200) which are respectively buckled with two lips (510) of the handrail belt (500) to be tested in a one-to-one correspondence, wherein one of the hooks (200) is fixedly connected to the base (100), and the other hook (200) is connected to the dynamometer (300).
4. The escalator handrail lip strength detection device according to claim 1, characterized in that: The handrail belt (500) to be tested can move freely on the base (100), the hooks (200) are two in number and are respectively and one-to-one connected to the two lips (510) of the handrail belt (500) to be tested, the force gauge (300) and the force applying assembly (400) are both two in number and are respectively and one-to-one connected to the two hooks (200), so that the strength of the two lips (510) of the handrail belt (500) to be tested can be tested simultaneously.
5. The escalator handrail lip strength detection device according to claim 1 is characterized in that: The base (100) is a stainless steel part.
6. The escalator handrail lip strength detection device according to claim 1, characterized in that: The slide rail (110) is specifically a slide groove, and the dynamometer (300) slides in the slide groove.
7. The escalator handrail lip strength detection device according to claim 1, characterized in that: The slide rail (110) comprises a track and a slider which are slidably connected to each other, the track is fixed to the base (100), and the dynamometer (300) is connected to the slider.
8. The escalator handrail lip strength detection device according to claim 1, characterized in that: The weight (410) is replaced by a vibration device (430), and the vibration device (430) is capable of periodically applying tension to the rope (420), thereby detecting the fatigue strength of the lip (510) of the handrail belt (500) to be tested.
9. The escalator handrail lip strength detection device according to any one of claims 1 to 8, characterized in that: The escalator handrail lip strength detection device further comprises a measuring device, wherein the measuring device is used to detect the distance between the two lips (510) of the handrail (500) to be tested.
10. The escalator handrail lip strength detection device according to any one of claims 1 to 8, characterized in that: The base (100) is provided with a scale, and the scale is used to display the distance between the two lips (510) of the handrail belt (500) to be tested.