Anti-extrusion safety device of escalator

Abstract

The utility model belongs to the technical field of elevator safety, and particularly relates to an anti-extrusion safety device of an escalator, which comprises a safety device body, the safety device body is mounted at an inlet of a steering end of a handrail and comprises a mounting frame, and the upper side and the lower side of the mounting frame are respectively connected with one end of a lifting rope and one end of an elastic pull rope in a hanging manner. The other end of the lifting rope is connected with the top end of an induction mechanism in a tying mode, the other end of the elastic pull rope is connected with the bottom end of the induction mechanism in a tying mode, the induction mechanism comprises a protective sleeve, and a tilt switch is hung on the inner side of the protective sleeve and electrically connected with a control system of the escalator. The suspended sensing mechanism can effectively prevent contact with accumulated water and small sundries on the ground while playing a monitoring role, so that the sensing stability is ensured; the elastic pull rope can drive the induction mechanism to incline to guarantee the monitoring effect of the safety device body and pull the induction mechanism at the same time, and the situation that when the induction mechanism is accidentally touched by small force, the induction mechanism inclines and alarms mistakenly is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator safety, and in particular relates to an anti-squeezing safety device for an escalator. Background Art

[0002] The utility model patent with authorization announcement number CN218664924U discloses an anti-crushing safety device for an escalator. The device is installed at the entrance of the escalator handrail at the turning end of the handrail. An outer cover is provided on the ground below the entrance of the handrail at the turning end of the handrail. The safety device includes a device body, a fixing member for fixing the device body to the outer cover, and a sensing component provided on the device body. The sensing component senses foreign objects caught between the turning end of the handrail and the outer cover. The device body is communicatively connected to the control system of the escalator so that when the sensing component senses foreign objects caught between the turning end of the handrail and the outer cover, the information is fed back to the control system of the escalator to achieve braking. An anti-misoperation component is provided in front of the device body to prevent the sensing component from malfunctioning. When the sensing component senses foreign objects caught between the turning end of the handrail and the outer cover, the information can be fed back to the control system of the escalator to achieve braking, which can effectively prevent accidents.

[0003] However, the above mechanism has the following problems: in order to prevent false operation, it is necessary to set an additional anti-false operation component in front of the device body to prevent the sensing component from false operation, and the installation steps are cumbersome; in addition, the micro switch installed on the ground or near the ground for sensing is easily affected by water on the ground and small debris stuck in the main body, causing sensing failure. Utility Model Content

[0004] In view of the above problems, the purpose of the present invention is to provide an anti-crushing safety device for an escalator, so as to solve the problem that the anti-crushing safety device of the existing escalator has complicated installation steps and is easily affected by water on the ground and small debris, resulting in induction failure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an anti-squeezing safety device for an escalator, comprising a safety device body, wherein the safety device body is installed at the entrance of the turning end of the handrail, the safety device body comprises a mounting frame, the upper and lower sides of the mounting frame are respectively tied with one end of a suspension rope and an elastic pull rope, the other end of the suspension rope is tied with the top of a sensing mechanism, and the other end of the elastic pull rope is tied with the bottom of the sensing mechanism, the sensing mechanism comprises a protective sleeve, a tilt switch is hung on the inner side of the protective sleeve, and the tilt switch is electrically connected to the control system of the escalator.

[0006] The beneficial effects of the present invention are as follows: the suspended sensing mechanism can effectively avoid contact with water and small debris on the ground while playing a monitoring role, thereby ensuring the stability of the sensing; the elastic pull rope can pull the sensing mechanism while driving the sensing mechanism to tilt to ensure the monitoring effect of the safety device body, thereby avoiding the sensing mechanism from tilting and false alarming when it is accidentally hit by a small force.

[0007] In order to effectively isolate and protect the tilt switch;

[0008] As a further improvement of the above technical solution: the protective sleeve is a cylindrical structure with an open bottom end, and the tilt switch is slidably inserted into the protective sleeve.

[0009] The beneficial effect of this improvement is that the protective sleeve can be sleeved on the outside of the tilt switch, effectively isolating and protecting the tilt switch while ensuring the working reliability of the tilt switch.

[0010] In order to facilitate the installation and removal of the tilt switch;

[0011] As a further improvement of the above technical solution: a through hole for slidingly inserting a connecting bolt member 1 is opened on the top side of the protective sleeve, and the tilt switch is hung on the connecting bolt member 1.

[0012] The beneficial effect of this improvement is that the connecting bolt member 1 can be easily installed and removed from the protective sleeve, thereby making it convenient for personnel to install and remove the tilt switch in the protective sleeve.

[0013] In order to facilitate the installation and removal of the tilt switch;

[0014] As a further improvement of the above technical solution: a through hole for slidingly inserting the connecting bolt part 2 is opened on the bottom side of the protective sleeve, and one end of the elastic pull rope is tied to the connecting bolt part 2.

[0015] The beneficial effect of this improvement is that after the second connecting bolt is removed from the protective sleeve, the operator can easily remove the tilt switch from the bottom of the protective sleeve.

[0016] In order to ensure the installation stability of the sensing mechanism;

[0017] As a further improvement of the above technical solution: the mounting frame includes a connecting plate and an end plate, the number of the end plates is two and they are relatively arranged on the upper and lower sides of the connecting plate, the end plate and the connecting plate form a channel steel structure, and the lifting rope and elastic pull rope are respectively connected to the upper and lower flanges of the mounting frame.

[0018] The beneficial effect of this improvement is that the channel steel structure composed of the connecting plate and the end plate can stably fasten and connect the sensing mechanism.

[0019] In order to realize the convenient adjustment of the installation height of the mounting frame;

[0020] As a further improvement of the above technical solution: the connecting plate is provided with an adjustment groove for sliding plug-in bolts, and the end plate is provided with a through hole adapted for plug-in bolts.

[0021] The beneficial effect of this improvement is that the bolt can slide up and down in the adjustment slot, so that the top of the end plate on the upper side of the connecting plate is close to the handrail, preventing foreign objects or limbs from being caught between the mounting frame and the handrail after a person is knocked down by the handrail.

[0022] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the installation of the utility model;

[0024] Figure 2 This is a cross-sectional structural diagram of the utility model;

[0025] Figure 3 It is a structural diagram of the utility model;

[0026] In the figure: 3. Safety device body; 4. Mounting frame; 41. Connecting plate; 42. End plate; 43. Adjustment slot; 44. Bolt; 5. Lifting rope; 6. Elastic pull rope; 7. Sensing mechanism; 71. Protective sleeve; 72. Connecting bolt part 1; 73. Tilt switch; 74. Connecting bolt part 2. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0028] Example 1:

[0029] like Figure 1-3 shows: an anti-squeezing safety device for an escalator, comprising a safety device body 3, the safety device body 3 being installed at the entrance of the turning end of the handrail, the safety device body 3 comprising a mounting frame 4, the upper and lower sides of the mounting frame 4 being respectively tied with one end of a suspension rope 5 and an elastic pull rope 6, the other end of the suspension rope 5 being tied with the top of a sensing mechanism 7, the other end of the elastic pull rope 6 being tied with the bottom of the sensing mechanism 7, the sensing mechanism 7 comprising a protective sleeve 71, the inner side of the protective sleeve 71 being hung with a tilt switch 73, the tilt switch 73 being electrically connected to the control system of the escalator, and the suspended sensing mechanism 7 can effectively avoid contact with water and small debris on the ground while playing a monitoring role, ensuring the stability of the induction; the elastic pull rope 6 can pull the induction mechanism 7 while driving the induction mechanism 7 to ensure the monitoring effect of the safety device body 3, thereby preventing the induction mechanism 7 from tilting and misreporting when it is accidentally hit by a smaller force. The protective sleeve 71 is a cylindrical structure with an opening at the bottom end. The tilt switch 73 is slidably inserted in the protective sleeve 71. The protective sleeve 71 can be sleeved on the outside of the tilt switch 73, effectively isolating and protecting the tilt switch 73 while ensuring the working reliability of the tilt switch 73. The top side of the protective sleeve 71 is provided with a sliding plug The through hole of the connecting bolt part 72 is installed, and the tilt switch 73 is hung on the connecting bolt part 72. The connecting bolt part 72 can be easily loaded and unloaded on the protective sleeve 71, so as to facilitate personnel to load and unload the tilt switch 73 in the protective sleeve 71. The bottom side of the protective sleeve 71 is provided with a through hole for sliding and inserting the connecting bolt part 2 74. One end of the elastic pull rope 6 is tied to the connecting bolt part 2 74. After the connecting bolt part 2 74 is removed from the protective sleeve 71, the operator can easily take out the tilt switch 73 from the bottom of the protective sleeve 71. The mounting frame 4 includes a connecting plate 41 and an end plate 42. The number of the end plates 42 is two. The end plates 42 and the connecting plate 41 are relatively arranged on the upper and lower sides of the connecting plate 41, and the end plates 42 and the connecting plate 41 form a channel steel structure. The lifting rope 5 and the elastic pull rope 6 are respectively connected to the upper and lower flanges of the mounting frame 4. The channel steel structure composed of the connecting plate 41 and the end plate 42 can stably fasten the connection sensing mechanism 7. The connecting plate 41 is provided with an adjustment groove 43 for sliding the plug-in bolt 44, and the end plate 42 is provided with a through hole for fitting the plug-in bolt 44. The bolt 44 can slide up and down in the adjustment groove 43, so that the top of the end plate 42 on the upper side of the connecting plate 41 is close to the handrail, so as to prevent foreign objects or limbs from being clamped between the mounting frame 4 and the handrail after a person is knocked down by the handrail.

[0030] The model of the tilt switch is: KBX-220.

[0031] The working principle of this technical solution is as follows: when installing the safety device body 3, the safety device body 3 is installed at the entrance of the turning end of the handrail and fixed according to actual needs, and the height of the mounting bracket 4 is adjusted according to the actual situation on site. Specifically, after loosening the bolt 44, the bolt 44 is made to slide up and down in the adjustment slot 43, so that the top of the end plate 42 on the upper side of the connecting plate 41 is close to the handrail, to prevent foreign objects or limbs from being clamped between the mounting bracket 4 and the handrail after the person is knocked down by the handrail; when the person is knocked down by the handrail and moves toward the direction of the safety device body 3, the person's limbs collide with the elastic pull rope 6 or the sensing mechanism 7, and the elastic pull rope 6 is elastically deformed by the limbs and also drives the sensing mechanism 7 to move, thereby causing the sensing mechanism 7 suspended on the suspension rope 5 to tilt. After the tilt switch 73 inside the protective sleeve 71 tilts, the information is fed back to the control system of the escalator to realize braking, ensuring safe use. After the danger is eliminated, the escalator will only run again when the maintenance personnel manually reset it.

[0032] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0033] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. An anti-crushing safety device for an escalator, characterized by: The invention comprises a safety device body (3), wherein the safety device body (3) is installed at the entrance of the turning end of the handrail, and the safety device body (3) comprises a mounting frame (4). The upper and lower sides of the mounting frame (4) are respectively connected to one end of a suspension rope (5) and an elastic pull rope (6). The other end of the suspension rope (5) is connected to the top of a sensing mechanism (7), and the other end of the elastic pull rope (6) is connected to the bottom of the sensing mechanism (7). The sensing mechanism (7) comprises a protective sleeve (71), and a tilt switch (73) is mounted on the inner side of the protective sleeve (71). The tilt switch (73) is electrically connected to the control system of the escalator.

2. The anti-squeezing safety device for an escalator according to claim 1, characterized in that: The protective sleeve (71) is a cylindrical structure with an open bottom end, and the tilt switch (73) is slidably inserted into the protective sleeve (71).

3. The anti-squeezing safety device for an escalator according to claim 1, characterized in that: A through hole for slidingly inserting a connecting bolt member (72) is provided on the top side of the protective sleeve (71), and the tilt switch (73) is hung on the connecting bolt member (72).

4. The anti-squeezing safety device for an escalator according to claim 1, characterized in that: The bottom side of the protective sleeve (71) is provided with a through hole for slidingly inserting the second connecting bolt component (74), and one end of the elastic pull rope (6) is fastened to the second connecting bolt component (74).

5. The anti-squeezing safety device for an escalator according to claim 1, characterized in that: The mounting frame (4) comprises a connecting plate (41) and an end plate (42). The end plates (42) are two in number and are relatively arranged on the upper and lower sides of the connecting plate (41). The end plates (42) and the connecting plate (41) form a channel steel structure. The suspension rope (5) and the elastic pull rope (6) are respectively connected to the upper and lower flanges of the mounting frame (4).

6. The anti-squeezing safety device for an escalator according to claim 5, characterized in that: The connecting plate (41) is provided with an adjusting groove (43) for a sliding plug-in bolt (44), and the end plate (42) is provided with a through hole adapted to fit the plug-in bolt (44).

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