A protective door device with a limiting function

Abstract

The utility model discloses a kind of protective door devices with limit, comprising: door frame upright, the quantity of door frame upright is two;Switch base is fixedly arranged in the front side of one side door frame upright;Limit switch, fixedly arranged in the front side bottom end of switch base;Limit linkage mechanism is arranged in the front side of switch base.The protective door device with limit, by setting limit linkage mechanism, to open and close limit switch, through limit switch and the equipment linkage of protection area, the operating state of signal transmission control equipment, play protection effect, eliminate safety hazard, this protective door device cost is low, simple to make, function stable and reliable, have good market prospect.

Description

Technical Field

[0001] This utility model relates to the field of heavy equipment protection technology, specifically a protective door device with a limit switch. Background Technology

[0002] With the development of science and technology in my country, the design and manufacturing of various equipment are increasingly pursuing simplicity and lightweighting. Safety protection devices also need to improve their quality. The original safety protection doors were made of bulky profiles, and the limit switches were activated by the impact of the door. This resulted in two disadvantages: first, the door body was bulky, time-consuming to manufacture, and costly; second, it was difficult to detect when the limit switch failed, posing a safety hazard. Utility Model Content

[0003] The purpose of this utility model is to provide a protective door device with limit switches to solve the problems of the existing technology, such as the door body being bulky, the protective device being time-consuming and costly to manufacture, the limit switch being difficult to detect when it fails, and the potential safety hazards.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a protective door device with a limit switch, comprising: a door frame column, a switch base, a limit switch, and a limit linkage mechanism; the number of the door frame columns is two; the switch base is fixedly disposed on the front side of one of the door frame columns; the limit switch is fixedly disposed on the bottom front side of the switch base; and the limit linkage mechanism is disposed on the front side of the switch base.

[0005] Preferably, the limiting linkage mechanism includes: a limiting plate, fixedly disposed on one side of the top of the switch base; a connecting plate, fixedly disposed on the other side of the top of the switch base; a baffle, rotatably disposed on the top of the connecting plate, and the baffle rotates to the front side of the movable end of the limiting switch, the front side of the baffle having an insertion hole, and the front side of the limiting plate fitting into the inner cavity of the insertion hole; a pin, the front side of the limiting plate extending out of the inner cavity of the insertion hole, the top of the limiting plate having a positioning hole, and the inner cavity of the positioning hole having a pin inserted; a protective chain, one end of the chain being fixedly connected to the top of the pin, and the other end of the protective chain being fixedly disposed on one side of the door frame post on the other side; wherein, the pin is used to limit the baffle.

[0006] Preferably, the front side of the limiting plate has a screw hole, and the front side of the pin is plugged with a bolt, and the pin is screwed into the screw hole.

[0007] Preferably, the pin is T-shaped.

[0008] Preferably, the protective chain is set horizontally.

[0009] Compared with the prior art, the beneficial effects of this utility model are: the protective door device with limit switch, by setting a limit linkage mechanism, opens and closes the limit switch, and the limit switch is linked with the equipment in the protected area to transmit signals to control the operating status of the equipment, thereby achieving a protective effect and eliminating safety hazards. This kind of protective door device is low in cost, simple to manufacture, stable and reliable in function, and has a good market prospect. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the limiting linkage mechanism of this utility model; Figure 3 This is a schematic diagram of the structure of the switch base of this utility model; Figure 4 This is a front view of the baffle of this utility model; Figure 5 This is a front view of the limit switch of this utility model.

[0011] In the diagram: 1. Door frame post, 2. Switch base, 3. Limit switch, 4. Limit linkage mechanism, 41. Limit plate, 42. Connecting plate, 43. Baffle, 44. Socket, 45. Pin, 46. Protective chain, 47. Screw hole, 48. Bolt, 49. Positioning hole. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Please see Figure 1-5 This utility model provides a technical solution: a protective door device with a limit switch, comprising: a door frame column 1, a switch base 2, a limit switch 3, and a limit linkage mechanism 4; There are two door frame pillars 1. The switch base 2 is fixedly installed on the front side of one of the door frame pillars 1. The limit switch 3 is fixedly installed at the bottom front side of the switch base 2. The limit linkage mechanism 4 is installed on the front side of the switch base 2.

[0014] As a preferred embodiment, the limiting linkage mechanism 4 further includes: a limiting plate 41, a connecting plate 42, a baffle 43, a socket 44, a pin 45, a protective chain 46, a screw hole 47, a bolt 48, and a positioning hole 46. In order to be linked with the limit switch 3, the limit plate 41 is fixedly installed on one side of the top of the switch base 2, the connecting plate 42 is fixedly installed on the other side of the top of the switch base 2, the baffle 43 is rotatably installed on the top of the connecting plate 42, and the baffle 43 rotates to the front of the movable end of the limit switch 3. The baffle 43 presses the limit switch 4 to make the control circuit operate in a closed loop state. The front side of the baffle 43 has a socket 44, and the front side of the limit plate 41 is adapted to the inner cavity of the socket 44 for insertion. The front side of the limit plate 41 extends out of the inner cavity of the socket 44. The top of the limit plate 41 has a positioning hole 49, and the inner cavity of the positioning hole 49 is inserted with a pin 45. One end of the chain 46 is fixedly connected to the top of the pin 45, and the other end of the protective chain 46 is fixedly installed on one side of the door frame column 1 on the other side. The pin 45 is used to limit the baffle 43.

[0015] As a preferred option, the limiting plate 41 is further provided with a screw hole 47 on the front side, and a bolt 48 is inserted into the front side of the pin 45. The pin 45 is screwed into the screw hole 47. The bolt 48 can strengthen the fixation of the pin 45 and prevent the pin 45 from moving accidentally.

[0016] As a preferred option, the pin 45 is further shaped as a "T" to lock part of the pin 45 at the top of the limiting plate 41.

[0017] As a preferred option, the protective chain 46 is further positioned horizontally to block the two door frame posts 1.

[0018] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0019] Currently, the protective door is closed, and the baffle 43 presses against the limit switch 4 to make the control circuit operate in a closed loop. At this time, the pin 45 connecting the protective chain 46 is inserted into the positioning hole 49 of the limit plate, and then the bolt 48 is rotated into the screw hole 47 to position the baffle 43 in the active position of pressing against the limit switch 3, so that the equipment in the protected area can operate normally. When staff need to enter the equipment operating area, they first unscrew the inner cavity of bolt 48 and screw hole 47 to release the fixation between baffle 43 and pin 45. Then, they pull out pin 45 to release the limit on baffle 43, allowing baffle 43 to rotate outward and the movable end of limit switch 3 to move forward, so that the protective door is in the open state and the control circuit is in the disconnected state, preventing the equipment from starting normally. This effectively avoids potential safety hazards caused by equipment operation.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective door device with a limiting function, characterized in that, include: Door frame pillar (1), the number of which is two; The switch base (2) is fixedly installed on the front side of one of the door frame columns (1); Limit switch (3) is fixedly installed at the bottom front side of the switch base (2); The limit linkage mechanism (4) is located on the front side of the switch base (2).

2. The protective door device with limiting function according to claim 1, characterized in that: The limiting linkage mechanism (4) includes: A limiting plate (41) is fixedly installed on one side of the top of the switch base (2); A connecting plate (42) is fixedly installed on the other side of the top of the switch base (2); A baffle (43) is rotatably disposed at the top of the connecting plate (42), and the baffle (43) is rotated to the front side of the movable end of the limit switch (3). A socket (44) is provided on the front side of the baffle (43), and the front side of the limit plate (41) is adapted to be inserted into the inner cavity of the socket (44). The pin (45) extends from the front side of the limiting plate (41) into the inner cavity of the insertion hole (44). The top of the limiting plate (41) is provided with a positioning hole (49), and the pin (45) is inserted into the inner cavity of the positioning hole (49). A protective chain (46) is provided, one end of which is fixedly connected to the top of the pin (45), and the other end of which is fixedly disposed on one side of the door frame post (1) on the other side. The baffle (43) is limited by the pin (45).

3. A protective door device with a limiting function according to claim 2, characterized in that: The limiting plate (41) has a screw hole (47) on its front side, and a bolt (48) is inserted into the front side of the pin (45), and the pin (45) is screwed into the screw hole (47).

4. A protective door device with a limiting function according to claim 2, characterized in that: The pin (45) is T-shaped.

5. A protective door device with a limiting function according to claim 2, characterized in that: The protective chain (46) is set horizontally.

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