Top type intelligent well lid positioning sensing structure

Abstract

The utility model discloses a top type intelligent well lid positioning sensing structure which is characterized in that a pressing pin mounting seat is arranged on one side of the circumferential direction of a well lid, the pressing pin mounting seat is of a hollow shell-shaped structure, a pressing pin is vertically mounted in the pressing pin mounting seat, a through hole for the pressing pin to penetrate through is formed in the position, corresponding to the pressing pin, of the well lid, and the pressing pin mounting seat is of a hollow shell-shaped structure. The bottom of the pressing pin penetrates through the well lid, the pressing pin can slide up and down in the pressing pin installation base, the pressing pin makes contact with or is separated from the surface of the well ring, a magnet installation frame is fixedly connected to the pressing pin, a magnet is installed on the magnet installation frame, and an induction head is arranged on the outer side of the position corresponding to the magnet. The inductive head is connected with the well lid through an inductive head installation base, a magnetic sensitive element with a line is arranged in the inductive head, a connecting line of the magnetic sensitive element with the line penetrates from the upper portion of the well lid to the lower portion of the well lid, and the magnetic sensitive element with the line is electrically connected with the controller. The technical problem that in the prior art, a contact elastic piece is prone to damage or too high in precision and cannot adapt to the severe underground environment is solved.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical technology, and in particular relates to a top-up intelligent manhole cover position sensing structure. Background Art

[0002] Intelligent remote locking and management of urban manhole covers primarily utilizes near-end Bluetooth control and remote NB-IoT control. Remote control typically utilizes a limit switch, primarily a proximity switch (also known as a metal induction switch), to control or monitor two interlocking metal structural components. Existing limit switches, whether mini or large, are primarily used in industrial factory environments. These limit switches have low waterproofing requirements and their contact springs are of poor quality and prone to damage. Furthermore, conventional industrial voltages and currents of 220-250V / 3-10A are prevalent in industrial applications, while low-voltage, 3-5V / 5mA, contactless micro switches are virtually nonexistent.

[0003] Existing proximity switches, sometimes also called door magnetic switches, are relatively large and typically secured with a screw or additional screws. This requires precise structural dimensional control to ensure accurate measurement. Due to their structure and precision requirements, they are susceptible to damage during use and have difficulty maintaining accuracy. Neither of these switches is suitable for use in harsh outdoor environments such as underground mines. Utility Model Content

[0004] The purpose of the utility model is to provide a top-type intelligent manhole cover position sensing structure to solve the technical problems in the above-mentioned prior art that the contact spring is easily damaged or the accuracy is too high to adapt to the harsh underground environment.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A top-type intelligent manhole cover position sensing structure comprises: a manhole cover, a press pin mounting seat on one circumferential side of the manhole cover, the press pin mounting seat being a hollow shell-like structure, a press pin being vertically mounted in the press pin mounting seat, a through hole for the press pin to pass through at a position corresponding to the manhole cover and the press pin, the bottom of the press pin passing through the manhole cover, the press pin being able to slide up and down in the press pin mounting seat, the press pin being in contact with or separated from the surface of the manhole ring, a magnet mounting frame being fixedly connected to the press pin, a magnet being mounted on the magnet mounting frame, an induction head being arranged on the outside of a position corresponding to the magnet position, the induction head being connected to the manhole cover through the induction head mounting seat, a wired magnetic sensitive element being arranged in the induction head, a connecting line of the wired magnetic sensitive element passing from the upper part to the lower part of the manhole cover, and the wired magnetic sensitive element being electrically connected to a controller.

[0007] The utility model provides an upper-type intelligent manhole cover position sensing structure, wherein a locking nut is provided on the top of the pressing pin, and the locking nut is located on the top of the pressing pin mounting seat.

[0008] The utility model provides an upper-type intelligent manhole cover position sensing structure, wherein a spring is sleeved on the outer side of a pressing pin part in a pressing pin mounting seat, and the spring enables the pressing pin to keep extending out from the bottom of the manhole cover.

[0009] The utility model provides a top-up intelligent manhole cover position sensing structure, wherein the magnet is installed in a magnet mounting seat, and the magnet mounting seat is connected to the magnet mounting frame.

[0010] The utility model provides a top-up intelligent manhole cover position sensing structure, wherein the material of the magnet mounting seat is plastic.

[0011] The utility model provides an upper-top intelligent manhole cover position sensing structure, wherein a connecting wire with a wire magnetic sensitive element is provided with a wire end protection cover at a bend formed by passing through the manhole cover, and the wire end protection cover is connected to the surface of the manhole cover.

[0012] The utility model provides a top-up intelligent manhole cover position sensing structure, wherein the magnet mounting frame is an L-shaped structure.

[0013] The utility model provides a top-type intelligent manhole cover position sensing structure, wherein the sensor head mounting seat is in a Z-shaped structure, the bottom of the Z-shaped structure is connected to the manhole cover, and the top of the Z-shaped structure forms protection for the sensor head.

[0014] The beneficial effects produced by the present invention are as follows: a top-up intelligent manhole cover position sensing structure is proposed, in which a pressure pin passes through the manhole cover and can slide up and down in a pressure pin mounting seat. When the manhole cover is in the positioned state, the manhole ring pushes up the pressure pin, thereby causing the magnet and the wired magnetic sensitive element to be misaligned, thereby transmitting a signal to the controller, thereby achieving monitoring of the movement of the manhole cover on the manhole ring; the pressure pin is kept in a descending state by a spring, so that it can automatically reset when the manhole cover leaves the manhole ring, thereby transmitting a separation signal to the controller; the connection line is prevented from being damaged by arranging wire head protection; and the Z-shaped sensing head mounting seat is provided so that the sensing head is installed in the vertical part, and the horizontal part at the top forms protection for the sensing head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0016] Figure 1 It is a schematic diagram of an embodiment of the utility model;

[0017] Figure 2 It is an axonometric view of an embodiment of the utility model;

[0018] Figure 3 It is an axonometric view from another angle of an embodiment of the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, rather than all the embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] like Figure 1-3 As shown, a top-type intelligent manhole cover position sensing structure comprises: a manhole cover 1, wherein the manhole cover 1 has a press pin mounting seat 4 on one circumferential side, the press pin mounting seat 4 is a hollow shell structure, a press pin 5 is vertically mounted in the press pin mounting seat 4, the manhole cover 1 has a through hole for the press pin 5 to pass through at the corresponding position of the press pin 5, the bottom of the press pin 5 passes through the manhole cover 1, the press pin 5 can slide up and down in the press pin mounting seat 4, the press pin 5 contacts or separates from the surface of the manhole ring 2, a magnet mounting bracket 8 is fixedly connected to the press pin 5, a magnet 10 is mounted on the magnet mounting bracket 8, an induction head 11 is arranged on the outside of the corresponding position of the magnet 10, the induction head 11 is connected to the manhole cover 1 through the induction head mounting seat 13, a wired magnetic sensitive element 12 is provided in the induction head 11, the connecting line of the wired magnetic sensitive element 12 passes from the upper part to the lower part of the manhole cover 1, and the wired magnetic sensitive element 12 is electrically connected to the controller.

[0021] In a preferred embodiment of the present invention, a locking nut 7 is provided on the top of the pressing pin 5 , and the locking nut 7 is located on the top of the pressing pin mounting seat 4 . The locking nut 7 serves to limit the pressing pin 5 after it is reset.

[0022] In a preferred embodiment of the present invention, a spring 6 is sleeved on the outer side of the pressing pin 5 in the pressing pin mounting seat 4 , and the spring 6 keeps the pressing pin 5 extending out from the bottom of the manhole cover 1 .

[0023] In a preferred embodiment of the present invention, the magnet 10 is installed in a magnet mounting seat 9 , and the magnet mounting seat 9 is connected to the magnet mounting frame 8 .

[0024] In a preferred embodiment of the present invention, the magnet mounting seat 9 is made of plastic.

[0025] In a preferred embodiment of the present utility model, a wire end protection cover 14 is provided at the bend formed by the connecting wire of the wired magnetic sensitive element 12 passing through the manhole cover 1, and the wire end protection cover 14 is connected to the surface of the manhole cover 1.

[0026] In a preferred embodiment of the present invention, the magnet mounting frame 8 is an L-shaped structure.

[0027] The top-type intelligent manhole cover position sensing structure according to claim 1 is characterized in that the sensing head mounting base 13 is a Z-shaped structure, the bottom of the Z-shaped structure is connected to the manhole cover 1, and the top of the Z-shaped structure forms a protection for the sensing head 11.

[0028] It should be noted that this structure is suitable for installation on the smart inner manhole cover, not for installation on the outer manhole cover on the outdoor road. Because the smart inner manhole cover is usually installed below the outer manhole cover, and there is a relatively large space between the outer and inner manhole covers to install this position sensor structure. Figure 3 In the embodiment, the pressing pin mounting seat 4 is arched and has a protective effect on the relevant parts of the device together with the induction head mounting seat 13. All intelligent inner manhole covers can adopt the structure of the present application to detect the state of the inner manhole cover being out of the manhole ring, thereby playing the role of an alarm.

[0029] The L-shaped magnet mounting frame 8 is fixedly connected to the pressure pin 5. When the manhole cover 1 is placed on the manhole ring 2, the top surface of the manhole ring 2 will push the pressure pin 5 upward. When the pressure pin 5 is pushed up, it will cause the spring 6 to compress and drive the magnet mounting frame 8 to move upward. Since the magnet mounting base 9 made of a plastic head containing the magnet 10 is fixed to the magnet mounting frame 8, the magnet 10 will also move upward, so that the magnet 10 will no longer be aligned with the sensing head 11. The wired magnetic sensitive element 12 will sense that the magnet 10 has left and transmit the "landing" signal to the controller. This is the detection process of the manhole cover 1 being placed on the manhole ring 2, commonly known as "manhole cover landing."

[0030] When manhole cover 1 is lifted off manhole collar 2, spring 6 retracts pressure pin 5. This reset of pressure pin 5 repositions magnet mounting bracket 8, which in turn repositions magnet mounting base 9 (made of a plastic head and containing magnet 10). After repositioning, wired magnetic sensor 12 senses the return of magnet 10 and transmits a "detachment" signal to the controller. This is the process of detecting when manhole cover 1 has been lifted off manhole collar 2, commonly known as "manhole cover detachment."

[0031] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0033] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A top-type intelligent manhole cover position sensing structure, characterized in that: include: The manhole cover (1) has a press pin mounting seat (4) on one circumferential side of the manhole cover (1), the press pin mounting seat (4) is a hollow shell-shaped structure, a press pin (5) is vertically mounted in the press pin mounting seat (4), the manhole cover (1) has a through hole for the press pin (5) to pass through at a position corresponding to the press pin (5), the bottom of the press pin (5) passes through the manhole cover (1), the press pin (5) can slide up and down in the press pin mounting seat (4), the press pin (5) contacts or separates from the surface of the manhole ring (2), and the press pin ( 5) is fixedly connected to a magnet mounting frame (8), a magnet (10) is mounted on the magnet mounting frame (8), an induction head (11) is arranged on the outside of the corresponding position of the magnet (10), the induction head (11) is connected to the manhole cover (1) through the induction head mounting seat (13), a wired magnetic sensitive element (12) is provided in the induction head (11), a connecting line of the wired magnetic sensitive element (12) passes from the upper part to the lower part of the manhole cover (1), and the wired magnetic sensitive element (12) is electrically connected to the controller.

2. The top-type intelligent manhole cover position sensing structure according to claim 1 is characterized in that: A locking nut (7) is provided on the top of the pressing pin (5), and the locking nut (7) is located on the top of the pressing pin mounting seat (4).

3. The top-type intelligent manhole cover position sensing structure according to claim 2 is characterized in that: A spring (6) is sleeved on the outer side of the pressing pin (5) in the pressing pin mounting seat (4), and the spring (6) keeps the pressing pin (5) in a state of extending out of the bottom of the manhole cover (1).

4. The intelligent manhole cover position sensing structure according to claim 3 is characterized in that: The magnet (10) is mounted in a magnet mounting seat (9), and the magnet mounting seat (9) is connected to a magnet mounting frame (8).

5. The top-type intelligent manhole cover position sensing structure according to claim 4 is characterized in that: The material of the magnet mounting seat (9) is plastic.

6. The top-type intelligent manhole cover position sensing structure according to claim 1 is characterized in that: A wire end protection cover (14) is provided at a bend formed by the connecting wire of the wired magnetic sensitive element (12) passing through the manhole cover (1), and the wire end protection cover (14) is connected to the surface of the manhole cover (1).

7. The intelligent manhole cover position sensing structure according to claim 1 is characterized in that: The magnet mounting frame (8) has an L-shaped structure.

8. The top-type intelligent manhole cover position sensing structure according to claim 1 is characterized in that: The induction head mounting seat (13) is in a Z-shaped structure, the bottom of the Z-shaped structure is connected to the manhole cover (1), and the top of the Z-shaped structure forms protection for the induction head (11).

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