A power plant thermal instrument terminal box

Abstract

The utility model discloses a power plant thermotechnical instrument terminal box relates to terminal box technical field, including box body, the inside fixedly connected with fixed plate of box body, the outside symmetrical fixed connection of fixed plate has no.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology, and in particular to a junction box for thermal instruments in power plants. Background Technology

[0002] Thermal instrumentation in power plants refers to instruments used in power plant thermal systems to measure, display, control, and protect thermal parameters such as temperature, pressure, flow rate, and liquid level. These instruments play a crucial role in power plant operation, helping engineers and operators monitor the plant's operating status and ensure production efficiency and safety. Thermal instrumentation typically consists of sensors, converters, displays, and controllers. Sensors convert the measured physical quantity into electrical signals, converters convert these signals into a standard format, displays show the numerical values, and controllers make judgments and control based on these values.

[0003] A search revealed a junction box for thermal instruments in a power plant (authorization announcement number: CN 221747908 U), which "comprising a junction box body, with mounting boxes connected to both side walls of the junction box body; a heat dissipation component and a filter component are slidably connected inside the mounting boxes; air passes sequentially through the heat dissipation component and the filter component before entering the interior of the junction box body. The heat dissipation component and filter component of this utility model's junction box for thermal instruments in a power plant are easy to disassemble and clean, preventing the filter component from being clogged by dust."

[0004] Based on the aforementioned technologies, the applicant believes that existing junction boxes for power plant thermal instruments lack a mechanism for securing the wires after connection, leaving the wire connections directly exposed. This makes the wires prone to short circuits or breakage when pulled, and there are certain shortcomings in actual use. To address these issues, we have developed a junction box for power plant thermal instruments. Utility Model Content

[0005] This utility model discloses a junction box for thermal instruments in power plants, aiming to solve the technical problem that existing junction boxes for thermal instruments in power plants lack a fixing mechanism for the wires after connection, and the wire connection is directly exposed, making the wires prone to short circuits or breakage when pulled.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A junction box for thermal instruments in a power plant includes a box body. A fixing plate is fixedly connected inside the box body. A first clamping plate is symmetrically fixedly connected to the outer side of the fixing plate. A fixing mechanism is symmetrically arranged inside the box body, and the fixing mechanism includes a sliding rod fixedly connected inside the box body. A second clamping plate is arranged inside the box body. A fixing block is symmetrically fixedly connected to the outer side of the second clamping plate. Connecting rods are symmetrically rotatably connected to the outer sides of both fixing blocks. Rotating rods are rotatably connected to the other ends of both connecting rods. Sliding discs are symmetrically slidably connected to the outer side of the sliding rod. A spring is sleeved on the outer side of the sliding rod, and the two ends of the spring are respectively fixedly connected to the two sliding discs. Arc-shaped grooves are formed on the sides of the first and second clamping plates that are close to each other.

[0008] The fixed mechanism can fix and position the wires inside the junction box, preventing the wires from being directly exposed and short-circuited or broken due to pulling or contact, thus improving the safety of the junction box. It has a simple structure and is highly practical.

[0009] In a preferred embodiment, the top of the box body is provided with a lid, and the bottom of the lid is provided with a slot, and a rubber pad for increasing friction is fixedly connected inside the slot.

[0010] The designed lid protects the box, while the designed slots allow for the installation of the box and lid.

[0011] In a preferred embodiment, the top of the lid is provided with a transparent viewing window.

[0012] The interior of the box can be observed through the viewing window.

[0013] In a preferred embodiment, wire guard rings are symmetrically fixedly connected to both sides of the box body, and the wire guard rings are made of rubber.

[0014] The addition of a protective ring reduces friction between the wire and the box.

[0015] In a preferred embodiment, ventilation slots are formed in a rectangular array on both sides of the box.

[0016] The ventilation slots allow for ventilation and heat dissipation inside the box.

[0017] In a preferred embodiment, mounting holes are symmetrically provided on both sides of the bottom of the box.

[0018] The mounting holes make it easy for staff to install and secure the box.

[0019] The junction box for power plant thermal instruments provided by this utility model has the following advantages:

[0020] Firstly, the fixed mechanism can fix and position the wires inside the junction box, preventing the wires from being directly exposed and short-circuited or broken due to pulling or contact, thus improving the safety of the junction box. It has a simple structure and is highly practical.

[0021] Secondly, the box cover provides protection for the box body, the slots allow for installation between the box body and the cover, the observation window allows for observation of the box's interior, the wire protection ring reduces friction between the wires and the box body, the ventilation slots allow for ventilation and heat dissipation, and the mounting holes facilitate easy installation and securing of the box by staff. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a junction box for thermal instruments in a power plant, as proposed in this utility model.

[0023] Figure 2 This is a three-dimensional bottom view of a junction box for thermal instruments in a power plant, as proposed in this utility model.

[0024] Figure 3 This is a top view schematic diagram of the junction box for thermal instruments in a power plant, as proposed in this utility model.

[0025] Figure 4 This is a three-dimensional schematic diagram of the fixing mechanism of a junction box for thermal instruments in a power plant, as proposed in this utility model.

[0026] Figure 5 This is a three-dimensional bottom view of the cover of a junction box for thermal instruments in a power plant, as proposed in this utility model.

[0027] In the attached diagram: 1. Box body; 2. Fixing plate; 3. No. 1 clamping plate; 41. Sliding rod; 42. Fixing block; 43. Rotating rod; 44. Sliding disc; 45. Spring; 46. No. 2 clamping plate; 47. Connecting rod; 5. Box cover; 6. Slot; 7. Observation window; 8. Wire guard ring; 9. Ventilation slot; 10. Mounting hole. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] The junction box for power plant thermal instruments disclosed in this utility model is mainly used in junction box scenarios.

[0030] Reference Figure 1 - Figure 5 A junction box for thermal instruments in a power plant includes a box body 1. A fixing plate 2 is fixedly connected inside the box body 1. A first clamping plate 3 is symmetrically fixedly connected to the outside of the fixing plate 2. A fixing mechanism is symmetrically provided inside the box body 1. The fixing mechanism includes a sliding rod 41, which is fixedly connected inside the box body 1. A second clamping plate 46 is provided inside the box body 1. A fixing block 42 is symmetrically fixedly connected to the outside of the second clamping plate 46. A connecting rod 47 is symmetrically rotatably connected to the outside of both fixing blocks 42. A rotating rod 43 is rotatably connected to the other end of both connecting rods 47. A sliding disk 44 is symmetrically slidably connected to the outside of the sliding rod 41. A spring 45 is sleeved on the outside of the sliding rod 41. The two ends of the spring 45 are fixedly connected to the two sliding disks 44 respectively. An arc-shaped groove is opened on the side of the first clamping plate 3 and the second clamping plate 46 that are close to each other.

[0031] In this embodiment: the second clamping plate 46 is pulled away from the first clamping plate 3. The second clamping plate 46 drives the two fixing blocks 42 to move. The moving fixing blocks 42 press the two connecting rods 47. The connecting rods 47 push the two sliding discs 44 to slide towards each other. The spring 45 is compressed. Then the wire is placed between the first clamping plate 3 and the second clamping plate 46. The hand pulling the second clamping plate 46 is released. Under the tension of the spring 45, the second clamping plate 46 is pushed towards the first clamping plate 3. The first clamping plate 3 and the second clamping plate 46 cooperate to clamp and fix the wire inside the box 1. Through the fixed mechanism, the wire inside the junction box can be fixed and positioned, avoiding the wire from being directly exposed and short-circuited or broken due to pulling or touching. This improves the safety of the junction box. The structure is simple and highly practical.

[0032] In the above technical solution, considering that existing power plant thermal instrument junction boxes lack a fixing mechanism for the wires after connection, leaving the wire connections directly exposed, the wires are prone to short circuits or breakage when pulled. To solve this problem, the specific operation is as follows:

[0033] Reference Figure 1 - Figure 5 In a preferred embodiment, the top of the box body 1 is provided with a cover 5, and the bottom of the cover 5 is provided with a slot 6, inside which a rubber pad for increasing friction is fixedly connected. A transparent observation window 7 is provided on the top of the cover 5. Wire guard rings 8, made of rubber, are symmetrically fixedly connected to both sides of the box body 1. Ventilation slots 9 are arranged in a rectangular array on both sides of the box body 1. Mounting holes 10 are symmetrically provided on both sides of the bottom of the box body 1.

[0034] In this embodiment: the cover 5 protects the box body 1; the slot 6 allows the box body 1 and the cover 5 to be installed together; the observation window 7 allows observation of the inside of the box body 1; the wire protection ring 8 reduces friction between the wire and the box body 1; the ventilation slot 9 allows for ventilation and heat dissipation of the inside of the box body 1; and the mounting hole 10 facilitates the installation and fixing of the box body 1 by the operator.

[0035] Working principle: In actual use, the operator fixes the box 1 in the required position, passes the wires to be connected through the wire guards 8 at both ends, connects the wires inside the box 1, and then pulls the second clamping plate 46 away from the first clamping plate 3. The second clamping plate 46 drives the two fixing blocks 42 to move. The moving fixing blocks 42 squeeze the two connecting rods 47, and the connecting rods 47 push the two sliding discs 44 to slide towards each other. The spring 45 is compressed. Then the wire is placed between the first clamping plate 3 and the second clamping plate 46. The operator releases the hand that pulled the second clamping plate 46. Under the tension of the spring 45, the second clamping plate 46 is pushed towards the first clamping plate 3. The first clamping plate 3 and the second clamping plate 46 work together to clamp and fix the wire inside the box 1.

[0036] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A junction box for thermal instruments in a power plant, comprising a box body (1), characterized in that: The box body (1) is fixedly connected to a fixing plate (2) inside, and a clamping plate (3) is symmetrically fixedly connected to the outside of the fixing plate (2). The box body (1) is symmetrically provided with a fixing mechanism inside. The fixing mechanism includes a sliding rod (41), which is fixedly connected to the inside of the box (1). The inside of the box (1) is provided with a second clamping plate (46). The outer side of the second clamping plate (46) is symmetrically fixedly connected with a fixing block (42). The outer side of the two fixing blocks (42) is symmetrically rotatably connected with a connecting rod (47). The other end of the two connecting rods (47) is rotatably connected with a rotating rod (43). The outer side of the sliding rod (41) is symmetrically slidably connected with a sliding disk (44). The outer side of the sliding rod (41) is fitted with a spring (45). The two ends of the spring (45) are respectively fixedly connected to the two sliding disks (44). The first clamping plate (3) and the second clamping plate (46) are respectively provided with an arc-shaped groove on the side that is close to each other.

2. A junction box for power plant thermal instruments according to claim 1, characterized in that: The top of the box body (1) is provided with a box cover (5), and the bottom of the box cover (5) is provided with a slot (6). A rubber pad for increasing friction is fixedly connected inside the slot (6).

3. A junction box for power plant thermal instruments according to claim 2, characterized in that: The top of the lid (5) is provided with a transparent observation window (7).

4. A junction box for power plant thermal instruments according to claim 1, characterized in that: Both sides of the box (1) are symmetrically fixed with wire guard rings (8), which are made of rubber.

5. A junction box for thermal instruments in a power plant according to claim 1, characterized in that: Both sides of the box (1) are provided with ventilation slots (9) arranged in a rectangular array.

6. A junction box for power plant thermal instruments according to claim 1, characterized in that: The bottom sides of the box (1) are symmetrically provided with mounting holes (10).

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