Fixing structure for limited space detection device

Abstract

The utility model relates to the field of detection device fixing, and discloses a fixing structure for a limited space detection device, which comprises a casing, a fixing component is arranged on the rear surface of the casing, an auxiliary component is arranged on the upper side of the rear surface of the fixing component, and a display screen is fixedly mounted on the front surface of the casing. A plurality of sets of buttons are fixedly installed on the lower side, close to the display screen, of the front surface of the machine shell, a transmission line is detachably connected to the left surface of the machine shell, the fixing assembly comprises a fixing plate, and two sets of adding strips are fixedly installed on the rear surface of the fixing plate. According to the utility model, parts such as the magnetic strips, the sliding chutes and the positioning bolts in the equipment are mutually matched by utilizing connection relations, and the magnetic strips and the sliding chutes are used for dual-mode fixation, so that the machine shell can realize tool-free second-level adsorption on an iron wall surface, the machine shell can be quickly bound by a binding belt in a non-iron environment, the parallelism is finely adjusted by the positioning bolts, and firmness and frequent point shifting are considered.

Description

Technical Field

[0001] This utility model relates to the field of fixing detection devices, and in particular to a fixing structure for a detection device in a confined space. Background Technology

[0002] In industrial production, chemical storage, underground pipelines, and mining tunnels, confined space operations present complex environments with various safety hazards, including the accumulation of toxic and harmful gases, insufficient oxygen levels, and leaks of flammable and explosive materials, posing a serious threat to the lives of workers. Therefore, real-time and accurate monitoring of parameters such as gas composition, concentration, temperature, humidity, and pressure within confined spaces is crucial. Confined space monitoring devices, as key equipment for ensuring operational safety, typically need to be fixed at specific locations within the confined space to ensure the authenticity and representativeness of the monitoring data.

[0003] The aforementioned devices have the following drawbacks: traditional devices rely solely on magnetic attraction or straps for independent fixation, which cannot accommodate rapid switching between iron walls and non-iron scaffolding. This results in time-consuming disassembly and assembly when changing measurement points, and the devices are prone to detachment. Furthermore, the magnetic attraction structure lacks a parallelism fine-tuning mechanism, which can easily cause tilting after attraction, obstructing the sensor's air inlet and affecting detection accuracy. Mechanical binding lacks a uniform bearing plate, and uneven force can easily cause shell deformation. Therefore, a confined space detection device with a fixed structure is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a fixing structure for a confined space detection device, which aims to improve the problem of the single fixing method and inconvenient switching in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fixed structure for a confined space detection device, comprising a housing, a fixing component disposed on the rear surface of the housing, an auxiliary component disposed on the upper side of the rear surface of the fixing component, a display screen fixedly mounted on the front surface of the housing, multiple sets of buttons fixedly mounted on the lower side of the front surface of the housing near the display screen, a transmission line detachably connected to the left surface of the housing, the fixing component comprising a fixing plate, two sets of mounting strips fixedly mounted on the rear surface of the fixing plate, multiple sets of magnetic strips detachably connected to the rear surface of the mounting strips, two sets of sliding grooves opened on both the upper and lower sides of the mounting strips, and mounting blocks fixedly connected to both the upper and lower surfaces of the mounting strips.

[0006] As a further description of the above technical solution: the auxiliary component includes an auxiliary base, a disk is rotatably connected to the rear surface of the auxiliary base, a mounting base is fixedly connected to the axis of the rear surface of the disk, an auxiliary block is hinged inside the mounting base, and an auxiliary antenna is detachably connected to the upper surface of the auxiliary block.

[0007] As a further description of the above technical solution: a positioning bolt is threadedly connected to the groove on the inner wall of the mounting block.

[0008] As a further description of the above technical solution: the mounting strip is detachably connected to the rear surface of the fixing plate by positioning bolts.

[0009] As a further description of the above technical solution: the magnetic strips are provided in multiple sets, and each set of magnetic strips is evenly distributed on the rear surface of the strip in the form of a linear array.

[0010] As a further description of the above technical solution: the auxiliary antenna is rotatably connected to the rear surface of the auxiliary base via a mounting base.

[0011] As a further description of the above technical solution: the auxiliary seat is fixedly installed on the rear surface of the fixed plate near the upper side of the mounting strip.

[0012] As a further description of the above technical solution: the fixing plate is detachably connected to the rear surface of the housing.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the magnetic strip, slide groove, positioning bolt and other components in the equipment cooperate with each other through the connection relationship. The dual-mode fixation of "magnetic strip and slide groove" enables the machine shell to achieve tool-free second-level adsorption on the iron wall surface. In non-ferrous environments, it can be quickly tied with cable ties. The parallelism of the positioning bolt is finely adjusted, which takes into account both firmness and frequent relocation.

[0015] 2. In this utility model, the disk, mounting base and auxiliary block and other components in the device cooperate with each other through the connection relationship. The disk, mounting base and auxiliary block rotate and pitch in three degrees of freedom to support the MHz / LoRa / NB-IoT compatible auxiliary antenna, which is aligned with the base station in real time, to ensure high wireless signal gain and uninterrupted link in the confined space. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main body of a fixed structure for a confined space detection device proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the main body side view of the fixed structure for a confined space detection device proposed in this utility model;

[0018] Figure 3 This is a partial schematic diagram of the mounting strip for a fixed structure of a confined space detection device proposed in this utility model;

[0019] Figure 4 This is a partial schematic diagram of the auxiliary seat of the fixed structure for a confined space detection device proposed in this utility model.

[0020] Legend:

[0021] 1. Housing; 2. Display screen; 3. Button; 4. Transmission line; 5. Fixing components; 51. Fixing plate; 52. Mounting strip; 53. Magnetic strip; 54. Slide groove; 55. Mounting block; 56. Positioning bolt; 6. Auxiliary components; 61. Auxiliary base; 62. Auxiliary antenna; 63. Disc; 64. Mounting base; 65. Auxiliary block. Detailed Implementation

[0022] 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.

[0023] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a fixed structure for a confined space detection device, including a housing 1. The housing 1 is used to house and protect the internal circuits, sensors, batteries, and other core components, while providing an installation reference and structural support for the display screen 2, buttons 3, transmission lines 4, and fixing components 5. The fixing components 5 are provided on the rear surface of the housing 1. The fixing components 5 are used to quickly and stably fix the detection device to a metal wall, scaffolding, or other suitable carrier, ensuring that the device maintains a predetermined detection posture within the confined space. An auxiliary component 6 is provided on the upper side of the rear surface of the fixing components 5. The display screen 2 is fixedly installed on the front surface of the housing 1. The display screen 2 is used to display detection data, alarm information, menu interface, and system status in real time, making it easy for operators to read intuitively from outside the confined space. Multiple sets of buttons 3 are fixedly installed on the lower side of the front surface of the housing 1 near the display screen 2. The buttons 3 are used for functions such as power on / off, menu switching, parameter setting, and alarm reset. The transmission lines 4 are detachably connected to the left surface of the housing 1. The transmission lines 4 are used to output detection signals to an external control room or receive external power supply, while also facilitating quick on-site replacement and storage.

[0024] Reference Figure 2 - Figure 4The fixing component 5 includes a fixing plate 51, which is a plate-shaped base that provides a unified installation platform for the mounting strips 52 and auxiliary components 6, and ensures uniform overall force distribution. The fixing plate 51 is detachably connected to the rear surface of the housing 1. Two sets of mounting strips 52 are fixedly installed on the rear surface of the fixing plate 51. The mounting strips 52 are used to support multiple sets of magnetic strips 53 and slide rails 54, realizing the dual functions of magnetic fixation and slide rail expansion. Multiple sets of magnetic strips 53 are detachably connected to the rear surface of the mounting strips 52. Multiple sets of magnetic strips 53 are provided, and each set of magnetic strips 53 is evenly distributed on the rear surface of the mounting strips 52 in a linear array. The magnetic strips 53 quickly attract the detection device to the iron wall surface through magnetic attraction, realizing drilling-free installation and rapid transfer. The upper and lower sides of the strip 52 are provided with two sets of sliding grooves 54. The sliding grooves 54 are used to cooperate with external slide rails, cable ties or clamps to achieve mechanical clamping or binding fixation in non-magnetic environments. The upper and lower surfaces of the strip 52 are fixedly connected with the mounting blocks 55. The mounting blocks 55 are designed with a lug structure and have threaded holes inside for passing through the positioning bolts 56 and transmitting the locking force to the fixing plate 51. The positioning bolts 56 are threadedly connected in the grooves of the inner wall of the mounting blocks 55. The strip 52 is detachably connected to the rear surface of the fixing plate 51 through the positioning bolts 56. The positioning bolts 56 are threaded fasteners. After passing through the mounting blocks 55, they cooperate with the threaded holes of the fixing plate 51 to achieve detachable fixation of the strip 52 and fine adjustment of the angle of the magnetic strip 53 adsorption surface.

[0025] Reference Figure 2 - Figure 4 The auxiliary component 6 includes an auxiliary base 61, which is fixedly mounted on the rear surface of the mounting plate 51 near the upper side of the mounting strip 52. The auxiliary base 61 serves as a base and is fixed to the mounting plate 51 by screws or rivets, providing rotational support for the disc 63 and keeping it parallel to the rear surface of the housing 1. The disc 63 is rotatably connected to the rear surface of the auxiliary base 61. The disc 63 allows the auxiliary antenna 62 to rotate continuously or in increments of 360° in the horizontal plane to find the optimal signal direction. A mounting base 64 is fixedly connected to the axis of the rear surface of the disc 63, and the mounting base 64 is used to vertically fix the disc. The U-shaped or double-eared hinge bracket at the center of the rear surface of the 63 is used to hinge the auxiliary block 65 and provide pitch angle adjustment. The auxiliary block 65 is hinged inside the mounting base 64. The auxiliary block 65 is used to clamp and quickly replace the auxiliary antenna 62, while realizing the antenna pitch adjustment from 0-90° to avoid interference with the wall. The auxiliary antenna 62 is detachably connected to the upper surface of the auxiliary block 65. The auxiliary antenna 62 is rotatably connected to the rear surface of the auxiliary base 61 through the mounting base 64. The auxiliary antenna 62 is used to improve the RF signal gain and is compatible with wireless standards such as 433MHz, LoRa, and NB-IoT.

[0026] Working principle:

[0027] Once the testing task is assigned, the operators first carry the housing 1 to the entrance of the confined space. As the structural and electrical core of the entire device, housing 1 has integrated testing circuits, sensors, and batteries, and therefore can operate independently. Based on the wall material and installation conditions, the fixing method is selected. For iron walls, magnetic fixing is preferred. For wooden scaffolding or concrete walls, mechanical binding with cable ties / clamps is used with the sliding groove 54. The fixing plate 51 is pre-connected to the rear surface of the housing 1 by screws or clips, becoming the concentrated load-bearing plate for all subsequent fixing forces. The two sets of mounting strips 52 are locked to the rear surface of the fixing plate 51 by positioning bolts 56. The positioning bolts 56 pass through the threaded holes of the mounting block 55, forming a rigid connection that can be repeatedly disassembled and assembled. At the same time, the parallelism between the magnetic strip 53 adsorption surface and the wall surface can be finely adjusted by the screwing depth to ensure uniform adsorption. Multiple sets of magnetic strips 53 are evenly attached to the rear surface of the mounting strips 52 in a linear array. When the device is close to the iron wall, the magnetic strips 53 instantly generate a strong magnetic attraction force, realizing rapid positioning without tools or drilling. If relocation is required, the entire device can be removed by overcoming the magnetic attraction force of the magnetic strips 53, meeting the needs of frequently changing measuring points in confined spaces.

[0028] When there is no ferromagnetic material on the wall surface, the operator inserts cable ties or clamps through the grooves 54 on the upper and lower sides of the mounting strip 52. The grooves 54 are through or semi-through grooves, which can accommodate binding pieces of different widths. By tightening the cable ties / clamps, the mounting strip 52, together with the fixing plate 51 and the housing 1, is firmly bound to the scaffold crossbar or concrete embedded parts, thereby achieving reliable fixation in a non-magnetic environment. The auxiliary seat 61 is fixed to the upper side of the rear surface of the fixing plate 51 with screws, keeping it parallel to the rear surface of the housing 1, providing a stable reference for the rotating mechanism. The disc 63 and the auxiliary seat 61 form a rotating pair, which can rotate 360° steplessly or in increments in the horizontal plane. The rotation of the disc 63 can be completed manually or automatically by sweeping the frequency and finding the direction through the built-in micro stepper motor (not shown in the figure). Mounting base 64 is vertically fixed at the center of the rear surface of disk 63, and its U-shaped or double-eared hinge support structure is internally hinged to auxiliary block 65. Auxiliary block 65 can tilt and swing around the hinge axis within a range of 0-90°, thereby avoiding interference between the antenna and the wall or obstacles. Auxiliary antenna 62 is plugged into the upper surface of auxiliary block 65 for quick replacement. The antenna is compatible with multiple frequency bands such as 433MHz, LoRa, and NB-IoT, significantly improving wireless signal gain. After the sensor inside the housing 1 completes detection, the data is modulated by the internal circuit and transmitted to the external control room in real time through auxiliary antenna 62. If the signal is blocked, simply rotate disk 63 or adjust the tilt angle of auxiliary block 65 to re-align with the base station or relay node, ensuring the stability and continuity of the data transmission link.

[0029] The display screen 2 is fixed to the front surface of the housing 1, providing real-time visual display of detection data, alarm information, and system menus, making it easy for operators to read intuitively from outside confined spaces. Multiple buttons 3 are located below the display screen 2, used to perform operations such as power on / off, menu switching, parameter setting, and alarm reset. The transmission cable 4 is detachably connected to the left side of the housing 1, serving as both a data transmission cable and an external power supply. When long-term continuous monitoring is required on-site, an external DC power supply can be connected to avoid depleting the built-in battery. After the task is completed, the cable can be quickly unplugged and stored.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixing structure for a confined space detection device, comprising a casing (1), characterized in that: The rear surface of the housing (1) is provided with a fixing component (5), and the upper side of the rear surface of the fixing component (5) is provided with an auxiliary component (6). The front surface of the housing (1) is fixedly installed with a display screen (2). Multiple sets of buttons (3) are fixedly installed on the lower side of the front surface of the housing (1) near the display screen (2). A transmission line (4) is detachably connected to the left surface of the housing (1). The fixing component (5) includes a fixing plate (51). Two sets of mounting strips (52) are fixedly installed on the rear surface of the fixing plate (51). Multiple sets of magnetic strips (53) are detachably connected to the rear surface of the mounting strips (52). Two sets of sliding grooves (54) are opened on both the upper and lower sides of the mounting strips (52). Mounting blocks (55) are fixedly connected to both the upper and lower surfaces of the mounting strips (52).

2. The fixing structure for a confined space detection device according to claim 1, characterized in that: The auxiliary component (6) includes an auxiliary base (61), a disk (63) is rotatably connected to the rear surface of the auxiliary base (61), a mounting base (64) is fixedly connected to the axis of the rear surface of the disk (63), an auxiliary block (65) is hinged inside the mounting base (64), and an auxiliary antenna (62) is detachably connected to the upper surface of the auxiliary block (65).

3. The fixing structure for a confined space detection device according to claim 1, characterized in that: The mounting block (55) has a groove on its inner wall with a threaded positioning bolt (56).

4. The fixing structure for a confined space detection device according to claim 3, characterized in that: The mounting strip (52) is detachably connected to the rear surface of the fixing plate (51) by positioning bolts (56).

5. The fixing structure for a confined space detection device according to claim 1, characterized in that: The magnetic strips (53) are provided in multiple sets, and each set of magnetic strips (53) is evenly distributed on the rear surface of the mounting strip (52) in the form of a linear array.

6. The fixing structure for a confined space detection device according to claim 2, characterized in that: The auxiliary antenna (62) is rotatably connected to the rear surface of the auxiliary base (61) via the mounting base (64).

7. The fixing structure for a confined space detection device according to claim 2, characterized in that: The auxiliary seat (61) is fixedly installed on the rear surface of the fixed plate (51) near the upper side of the mounting strip (52).

8. The fixing structure for a confined space detection device according to claim 1, characterized in that: The fixing plate (51) is detachably connected to the rear surface of the housing (1).

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