Pedal type maintenance protection device for elevator pit

Abstract

The utility model discloses an elevator pit pedal type maintenance protection device which comprises a pedal device and a supporting device, the pedal device is connected with the supporting device through a trigger device, the pedal device can enable the supporting device to act through the trigger device by stepping on the pedal device, and the supporting device can support an elevator car to provide a maintenance space. The supporting device and the pedal device are installed in the elevator pit, a maintainer can conveniently step on the pedal device after entering the pit to enable the supporting rod of the supporting device to be erected through the trigger device, the supporting rod is limited and fixed through the spring pin and the limiting hole, and stable supporting of the supporting device is guaranteed. After maintenance is completed, the supporting rod can be reset in a manual pressing mode, the pedal device can be installed at the proper position in the bottom pit according to needs, it is guaranteed that a maintainer can tread the pedal device when entering the bottom pit, use is convenient, and the protection effect on the maintainer is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator equipment technical field especially relates to a pit of elevator foot -operated maintenance protection device. BACKGROUND

[0002] At present, most of the pit of domestic villa elevator is not designed maintenance device, and the current pit maintenance device is only simple mechanical pit maintenance device, and maintenance personnel need to manually prop up the pit every time to provide protection, which is inconvenient to operate, therefore, most maintenance personnel will not manually lift the pit maintenance device after entering the pit, and the pit maintenance device becomes a mere decoration after installation, and the protection effect is limited, which threatens the life safety of maintenance personnel. CONTENT OF UTILITY MODEL

[0003] In view of the above technical problems of prior art, the utility model solves the problems of inconvenient operation and poor protection effect.

[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A pit of elevator foot -operated maintenance protection device, including foot -operated device and support device, foot -operated device and support device are connected through trigger device, and the foot -operated device can make support device act through trigger device, so that the support device can support elevator car to provide maintenance space, wherein,

[0006] The support device includes a base, a support rod and a pull-up spring, one end of the support rod is rotatably installed on the base through a pivot, so that it can rotate between the horizontal state and the vertical state, one end of the pull-up spring is connected with the base through a first spring seat, and the other end is connected with the middle part of the support rod through a second spring seat, the first spring seat is higher than the pivot in the vertical direction, and when the support rod is in the horizontal state, the first spring seat and the second spring seat are located on the two sides of the pivot respectively, so that the included angle between the axis of the pull-up spring and the axis of the support rod is always greater than zero during the rotation of the support rod.

[0007] First limiting hole and second limiting hole are arranged on the base, and a spring pin is installed on the support rod correspondingly, when the support rod is in the horizontal state, the spring pin can extend into the first limiting hole, and when the support rod is in the vertical state, the spring pin can extend into the second limiting hole, the foot -operated device includes a bottom plate and a foot pedal rotatably installed on the bottom plate, the trigger device includes a pull -line, one end of the pull -line is connected with the foot pedal, and the other end is connected with the spring pin, the foot pedal can pull the pull -line when rotating, and then pull the spring pin out of the first limiting hole or the second limiting hole.

[0008] As an optimization, the base is U-shaped and includes a horizontal plate, a first side plate and a second side plate. The two ends of the rotating shaft are rotatably mounted on the first side plate and the second side plate, respectively. The first side plate has a first limiting hole and a second limiting hole.

[0009] As an optimization, the support rod is connected to the rotating shaft via an L-shaped plate. The L-shaped plate includes a first support plate and a second support plate. The first support plate is fixedly connected to the rotating shaft and the end of the support rod, and is perpendicular to the support rod. When the support rod rotates to a horizontal position, the first support plate is perpendicular to the horizontal plate. When the support plate rotates to a horizontal position, the first support plate is parallel to the horizontal plate and, under the action of the pull-up spring, fits against the horizontal plate to form a locking structure, preventing the support rod from continuing to rotate.

[0010] As an optimization, two opposing support plates are installed on the other support plate of the L-shaped plate, and corresponding sliding holes are opened on the support plates. The spring pin includes a pin shaft and a return spring sleeved on the pin shaft. One end of the pin shaft passes through the sliding hole and cooperates with the first limiting hole or the second limiting hole, and the other end is connected to the pull wire. A fixing plate is provided on the shaft between the two support plates. One end of the return spring abuts against the fixing plate, and the other end abuts against the support plate.

[0011] As an optimization, there are two pull-up springs, which are connected to the first side plate and the second side plate respectively.

[0012] As an optimization, a clearance groove is provided on the second side plate, and the pull wire can move along the clearance groove as the support rod rotates from a horizontal state to a vertical state.

[0013] As an optimization, a contact switch is installed on the horizontal plate. The contact switch is connected in series in the elevator operation circuit. When the support rod is in a horizontal state, the support rod can press the contact switch to connect the elevator operation circuit. When the support rod is in a non-horizontal state, the contact switch disconnects the elevator operation circuit.

[0014] As an optimization, a support base is provided on the horizontal plate, and a damping rod is provided on the support base. One end of the damping rod is connected to the support base, and the other end is connected to the middle of the support rod.

[0015] As an optimization, a support spring is provided between the foot pedal and the base plate, and a connecting plate is provided at the free end of the foot pedal. A support is provided on the base plate, and a guide groove is provided on the support. The pull cable passes through the guide groove and connects to the connecting plate.

[0016] Compared with the prior art, this application has the following advantages:

[0017] This invention features a support device and a foot pedal installed in the elevator pit. Maintenance personnel can easily step on the foot pedal after entering the pit, triggering a mechanism to lift the support rod of the support device. The rod is then secured by a spring pin and a limiting hole, ensuring stable support. After maintenance, the support rod can be manually pressed back to its original position. The foot pedal can be installed in a suitable location within the pit as needed, ensuring convenient access for maintenance personnel upon entering the pit. This design enhances the safety and protection of maintenance personnel. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model (support rod in a horizontal state).

[0019] Figure 2 This is a schematic diagram of the foot pedal device in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of this utility model (support rod in vertical position);

[0021] Figure 4 This is a schematic diagram of the support device in this utility model;

[0022] In the diagram, 1 is the base, 2 is the support rod, 3 is the pull spring, 4 is the pivot, 5 is the first limit hole, 6 is the spring pin, 7 is the base plate, 8 is the foot pedal, 9 is the pull cable, 10 is the L-shaped plate, 11 is the clearance groove, 12 is the contact switch, 13 is the support seat, 14 is the damping rod, 15 is the support spring, and 16 is the support. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] For specific implementation: see: Figures 1-4 ,

[0025] An elevator pit foot-operated maintenance and protection device includes a foot pedal and a support device. The foot pedal and the support device are connected via a triggering device. Stepping on the foot pedal activates the support device, enabling it to support the elevator car and provide maintenance space.

[0026] The support device includes a base 1, a support rod 2, and a pull-up spring 3. The base 1 is U-shaped and includes a horizontal plate, a first side plate, and a second side plate. The two ends of the rotating shaft 4 are rotatably mounted on the first side plate and the second side plate, respectively. The first side plate has a first limiting hole 5 and a second limiting hole.

[0027] One end of the support rod 2 is rotatably mounted on the base 1 via a pivot 4, allowing it to rotate between a horizontal and a vertical state.

[0028] One end of the pull-up spring 3 is connected to the base 1 via a first spring seat, and the other end is connected to the middle of the support rod 2 via a second spring seat. The first spring seat is higher than the rotating shaft 4 in the vertical direction, and when the support rod 2 is in a horizontal state, the first spring seat and the second spring seat are located on both sides of the rotating shaft 4, so that the angle between the axis of the pull-up spring 3 and the axis of the support rod 2 is always greater than zero during the rotation of the support rod 2. Specifically, there are two pull-up springs 3, which are connected to the first side plate and the second side plate respectively.

[0029] The base 1 is provided with a first limiting hole 5 and a second limiting hole. Correspondingly, a spring pin 6 is installed on the support rod 2. When the support rod 2 is in a horizontal state, the spring pin 6 can extend into the first limiting hole 5. When the support rod 2 is in a vertical state, the spring pin 6 can extend into the second limiting hole. The foot pedal device includes a base plate 7 and a foot pedal 8 rotatably mounted on the base plate 7. The triggering device includes a pull wire 9. One end of the pull wire 9 is connected to the foot pedal 8, and the other end is connected to the spring pin 6. When the foot pedal 8 rotates, it can pull the pull wire 9, thereby pulling the spring pin 6 out of the first limiting hole 5 or the second limiting hole.

[0030] This invention utilizes a support device and a foot pedal installed in the elevator pit. Maintenance personnel can easily step on the foot pedal after entering the pit, triggering a mechanism to elevate the support rod 2 of the support device. The support rod is then secured by a spring pin 6 and a limiting hole, ensuring stable support. After maintenance, the support rod 2 can be manually pressed back to its original position. The foot pedal can be installed in a suitable location within the pit as needed, ensuring that maintenance personnel can easily access it upon entering the pit. This convenient design enhances the protection of maintenance personnel.

[0031] To ensure that the rotation angle range of the support rod 2 is 90°, in this embodiment, the support rod 2 is connected to the rotating shaft 4 through an L-shaped plate 10. The L-shaped plate 10 includes a first support plate and a second support plate. The first support plate is fixedly connected to the rotating shaft 4 and the end of the support rod 2, and the first support plate is perpendicular to the support rod 2. When the support rod 2 rotates to a horizontal state, the first support plate is perpendicular to the horizontal plate. When the support plate rotates to a horizontal state, the first support plate is parallel to the horizontal plate and fits against the horizontal plate under the action of the pull spring 3, forming a locking structure to prevent the support rod 2 from continuing to rotate.

[0032] Two opposing support plates are installed on the second support plate of the L-shaped plate 10, and corresponding sliding holes are provided on the support plates. The spring pin 6 includes a pin shaft and a return spring sleeved on the pin shaft. One end of the pin shaft passes through the sliding hole and cooperates with the first limiting hole 5 or the second limiting hole, and the other end is connected to the pull wire 9. A fixing plate is provided on the shaft between the two support plates. One end of the return spring abuts against the fixing plate, and the other end abuts against the support plate.

[0033] In order to ensure that the pull wire 9 can follow the rotation of the support rod 2 and protect the pull wire 9, a relief groove 11 is provided on the second side plate. When the support rod 2 rotates from a horizontal state to a vertical state, the pull wire 9 can move along the relief groove 11.

[0034] A contact switch 12 is installed on the horizontal plate. The contact switch 12 is connected in series in the elevator operation circuit. When the support rod 2 is in a horizontal state, the support rod 2 can press the contact switch 12 to connect the elevator operation circuit. When the support rod 2 is in a non-horizontal state, the contact switch 12 disconnects the elevator operation circuit, further improving the protection effect through electrical direction.

[0035] A support seat 13 is provided on the side of the horizontal plate near the first spring seat. A damping rod 14 is provided on the support seat 13. One end of the damping rod 14 is connected to the support seat 13, and the other end is connected to the middle of the support rod 2 to provide damping for the rotation of the support rod 2 and prevent it from rotating suddenly.

[0036] A support spring 15 is provided between the foot pedal 8 and the base plate 7, and a connecting plate is provided at the free end of the foot pedal 8. A support 16 is provided on the base plate 7, and a guide groove is provided on the support 16. The pull cable 9 passes through the guide groove and connects to the connecting plate. In this way, the rotation of the foot pedal 8 can more easily pull the pull cable 9, thus extending its service life.

[0037] In practical use, first fix the support device and foot pedal device to a suitable surface in the pit using expansion bolts, ensuring that the support rod can support the car and guarantee the car's stability without tilting. Then fix the foot pedal device at the entrance to the pit through the hall door, ensuring that the first step after entering the pit can be taken onto the foot pedal. Connect the pull cable to the connecting plate and support base on the foot pedal, close the support rod, and insert the spring pin into the first limit hole.

[0038] After the maintenance personnel enter the pit, they step on the foot pedal, which moves downwards and closes, pulling the cable. The cable is fixed to the connecting plate on the foot pedal. When the foot pedal moves downwards, it pulls the cable, which pulls the spring pin. The pin is pulled out of the first limit hole, compressing the return spring. The pull-up spring remains in a stretched state. After the spring pin is pulled out, the pull-up spring pulls the support rod upwards. The support rod rotates through the pivot. At the same time, a damping rod is designed on the upper part of the support rod. During the process of the pull-up spring pulling the support rod backwards, the damping rod maintains damping, allowing the support rod to be slowly pulled up by the pull-up spring, preventing the support rod from suddenly springing up after the spring pin is pulled out, thus preventing accidents. The support rod rotates 90 degrees, from horizontal to vertical. The L-shaped plate at the bottom of the support rod, when rotated 90 degrees, is parallel to the horizontal plate of the base and fits against the horizontal plate under the action of the pull spring. At the same time, the support rod is vertically supported. Due to the return force of the return spring, when the foot pedal is released, the spring pin is reset by the return spring and inserted into the second limit hole to prevent the support rod from falling down, thus playing a stabilizing role. When the car slides down, the support rod can always keep the car vertically supported, protecting the safety of the people in the pit. The support rod is fixed by the spring pin and will not tilt or fall down due to the pressure of the car or human pushing.

[0039] After maintenance personnel complete the inspection, they manually pull out the spring pin, manually rotate the support rod to reset it, and pull up the spring tension. Once in position, the spring pin inserts into the first limit hole, fixing the support rod in a horizontal state. Simultaneously, there is a contact switch at the bottom of the support rod. When the support rod is horizontally positioned, the contact switch is pressed, energizing the switch and connecting it to the elevator safety circuit. The elevator can only operate normally when the contact switch is energized. When the support rod is vertically supported, the switch is not pressed, the elevator safety circuit remains open, and the elevator cannot operate, thus providing double electrical safety protection.

[0040] Although embodiments of the present invention have been shown and described, those skilled in the art can make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and basis of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. Therefore, the embodiments of the present invention are merely illustrative examples and do not constitute a limitation on the present invention in any way.

Claims

1. An elevator pit foot access protection device, characterized by: The application relates to a support device for an elevator car, which comprises a foot pedal device and a support device, the foot pedal device being connected with the support device through a triggering device, the foot pedal device being capable of driving the support device to act through the triggering device when the foot pedal device is stepped on, so that the support device can support the elevator car to provide a maintenance space; wherein, The support device comprises a base, a support rod and a lifting spring, one end of the support rod is rotatably arranged on the base through a rotating shaft, so that the support rod can rotate between a horizontal state and a vertical state; one end of the lifting spring is connected with the base through a first spring seat, and the other end is connected with the middle part of the support rod through a second spring seat, the first spring seat is higher than the rotating shaft in the vertical direction, and when the support rod is in the horizontal state, the first spring seat and the second spring seat are respectively located on the two sides of the rotating shaft, so that the angle between the axis of the lifting spring and the axis of the support rod is always greater than zero during the rotation of the support rod; First and second limiting holes are arranged on the base, and a spring pin is rotatably arranged on the support rod, the spring pin can extend into the first limiting hole when the support rod is in the horizontal state, and the spring pin can extend into the second limiting hole when the support rod is in the vertical state; the foot pedal device comprises a bottom plate and a pedal plate rotatably arranged on the bottom plate, the triggering device comprises a pulling wire, one end of the pulling wire is connected with the pedal plate, and the other end is connected with the spring pin, the pedal plate can pull the pulling wire when rotating, and then the spring pin is pulled out of the first limiting hole or the second limiting hole.

2. An elevator pit foot access protection device according to claim 1, characterized in that The base is in a U shape and comprises a horizontal plate, a first side plate and a second side plate, and the two ends of the rotating shaft are rotatably arranged on the first side plate and the second side plate respectively; the first and second limiting holes are arranged on the first side plate.

3. An elevator pit foot access protection device according to claim 2, characterized in that The support rod is connected with the rotating shaft through an L-shaped plate, the L-shaped plate comprises a first branch plate and a second branch plate, the first branch plate is fixedly connected with the rotating shaft and the end of the support rod, and the first branch plate is perpendicular to the support rod, when the support rod is rotated to the horizontal state, the first branch plate is perpendicular to the horizontal plate, when the support plate is rotated to the horizontal state, the first branch plate is parallel to the horizontal plate, and under the action of the lifting spring, the first branch plate is attached to the horizontal plate to form a locking structure, thereby preventing the support rod from continuing to rotate.

4. An elevator pit foot access protection device according to claim 3, characterized in that Two support plates are arranged on the other branch plate of the L-shaped plate, and sliding holes are arranged on the support plates, the spring pin comprises a pin shaft and a reset spring sleeved on the pin shaft, one end of the pin shaft penetrates through the sliding hole and is matched with the first limiting hole or the second limiting hole, and the other end is connected with the pulling wire; a fixed plate is arranged on the shaft body of the pin shaft between the two support plates, one end of the reset spring is abutted against the fixed plate, and the other end is abutted against the support plate.

5. The pit foot access protection device of claim 2, wherein, The lifting spring is two, and is connected with the first side plate and the second side plate respectively.

6. The pit foot access protection device of claim 2, wherein, A gap slot is arranged on the second side plate, and the pulling wire can move along the gap slot during the rotation of the support rod from the horizontal state to the vertical state.

7. The pit foot access protection device of claim 2, wherein, A contact switch is arranged on the horizontal plate, and the contact switch is connected in series in an elevator operation circuit, when the support rod is in the horizontal state, the support rod can press the contact switch, so that the contact switch is connected to the elevator operation circuit, and when the support rod is in a non-horizontal state, the contact switch disconnects the elevator operation circuit.

8. The pit foot access protection device of claim 2, wherein, The horizontal plate is provided with a supporting base on the side close to the first spring base, and a damping rod is arranged on the supporting base, one end of the damping rod is connected with the supporting base, and the other end is connected with the middle part of the supporting rod.

9. The pit foot access protection device of claim 1, wherein, Supporting springs are arranged between the foot plate and the bottom plate, a connecting plate is arranged at the free end of the foot plate, a supporting base is arranged on the bottom plate, a guide groove is arranged on the supporting base, and the pull wire is connected with the connecting plate through the guide groove.

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