A portable temperature-sensing cable fire detector alarm testing device

Abstract

The utility model relates to portable temperature sensing cable fire detector alarm testing arrangement, including the casing, the casing is constituted by the detachable connection of upper shell and lower shell, the casing is provided with first opening and second opening at the junction of upper shell and lower shell, is provided with the containing chamber that communicates with first opening and second opening in the casing, is provided with the heat conduction plate, heating wire unit and control circuit board in containing chamber, when using, open upper shell and lower shell, the 1m long temperature sensing cable section that will detect is placed in the area between first opening and second opening, then close upper shell and lower shell, control heating wire unit operation through control circuit board, promote the temperature in containing chamber to set detection temperature, realize the test purpose, can to 1m long temperature sensing cable section whole even heating, and the heat dissipation amount is very little, guarantee the accuracy of heating temperature, good portability simultaneously, a person can complete the operation quickly, has improved the detection efficiency greatly.

Description

Technical Field

[0001] This utility model relates to the field of fire alarm testing technology for heat-sensing cables, and more specifically, to a portable fire detector alarm testing device for heat-sensing cables. Background Technology

[0002] Cable-type linear heat detectors are typically designed to be quite long, such as the common 2km length. During testing, a 1m section is usually selected for heating alarm testing. Since the heat-sensing cable is already installed during on-site testing, existing testing methods often employ multi-point heating for detection. However, this method has the following drawbacks:

[0003] 1. The heating of the cable is done in an open manner, which makes it easy for heat to dissipate and not concentrate. The heating temperature value is significantly different from the actual heating temperature, resulting in poor reliability.

[0004] 2. Multi-point heating operation usually requires multiple people to assist, and there are many pieces of equipment, making it poorly portable;

[0005] 3. Multi-point heating operation results in poor heating uniformity, making it difficult to cover the entire cable within a 1m range;

[0006] There is a need for a portable alarm testing device for heat-sensing cable fire detectors that can effectively address the testing challenges in this scenario. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a portable temperature-sensing cable fire detector alarm testing device, which addresses the above-mentioned deficiencies of the prior art.

[0008] The technical solution adopted by this utility model to solve its technical problem is:

[0009] A portable alarm testing device for a heat-sensing cable fire detector is constructed, comprising a housing consisting of a detachably connected upper shell and a lower shell; the housing has a first opening and a second opening at the connection between the upper and lower shells to accommodate the heat-sensing cable, the first opening and the second opening being opposite to each other and spaced at least 1m apart; the housing contains a receiving chamber communicating with both the first opening and the second opening, and the receiving chamber contains a heat-conducting plate that adheres to the heat-sensing cable, a heating wire unit that heats the heat-conducting plate, and a control circuit board that controls the heating wire unit.

[0010] The portable temperature-sensing cable fire detector alarm testing device of this utility model includes control buttons on the housing for operating the control circuit board.

[0011] The portable temperature-sensing cable fire detector alarm testing device of this utility model includes a display screen on the housing, which is connected to the control circuit board; the control circuit board is equipped with a temperature sensor for detecting the internal temperature of the containment chamber.

[0012] The portable temperature-sensing cable fire detector alarm testing device of this utility model includes a heat insulation plate in the receiving chamber, and the heating wire unit is located between the heat-conducting plate and the heat insulation plate.

[0013] The portable temperature-sensing cable fire detector alarm testing device of this utility model includes a heating wire unit comprising a mounting plate and a heating wire; the heat-conducting plate, the mounting plate, the heat insulation plate, and the lower shell are connected in sequence.

[0014] The portable temperature-sensing cable fire detector alarm testing device of this utility model includes a top cover in the receiving chamber, and the top cover, the control circuit board and the upper shell are connected in sequence.

[0015] The portable temperature-sensing cable fire detector alarm testing device of this utility model, wherein the upper cover and the heat-conducting plate cooperate to clamp and fix the temperature-sensing cable.

[0016] The portable temperature-sensing cable fire detector alarm testing device of this utility model further includes a first rubber plug and a second rubber plug corresponding to sealing the first opening and the second opening.

[0017] The portable temperature-sensing cable fire detector alarm testing device of this utility model includes a first half-hole and a second half-hole respectively provided on the two opposite edges of one of the upper shell and the lower shell, and a third half-hole and a fourth half-hole respectively provided on the two opposite edges of the other shell; the first half-hole and the third half-hole are combined to form the first opening, and the second half-hole and the fourth half-hole are combined to form the second opening.

[0018] The portable temperature-sensing cable fire detector alarm testing device of this utility model has one end of the opposite side surface of the upper shell and the lower shell hinged together, and the other end connected by a snap fastener.

[0019] The beneficial effects of this utility model are as follows: In use, the upper and lower shells are opened, the 1m long temperature-sensing cable segment to be tested is placed in the area between the first and second openings, and then the upper and lower shells are closed. The heating wire unit is controlled by the control circuit board to raise the temperature in the containment chamber to the set detection temperature, thereby achieving the testing purpose. This method can uniformly heat the entire 1m long temperature-sensing cable segment with very little heat loss, ensuring the accuracy of the heating temperature. At the same time, it is portable, and a single person can quickly complete the operation, greatly improving the testing efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the portable temperature-sensing cable fire detector alarm test device according to a preferred embodiment of the present invention;

[0022] Figure 2 This is a structural schematic diagram of the portable temperature-sensing cable fire detector alarm testing device from another perspective, representing a preferred embodiment of this utility model.

[0023] Figure 3 This is an exploded view of the portable temperature-sensing cable fire detector alarm testing device, a preferred embodiment of this utility model.

[0024] Figure 4 This is an exploded view from another perspective of the portable temperature-sensing cable fire detector alarm testing device, which is a preferred embodiment of this utility model. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] The preferred embodiment of this utility model is a portable temperature-sensing cable fire detector alarm testing device, such as... Figure 1 As shown, see also Figures 2-4The device includes a housing, which is composed of a detachably connected upper shell 1 and a lower shell 2. The housing has a first opening 3 and a second opening 4 at the connection between the upper shell 1 and the lower shell 2 to accommodate the temperature sensing cable. The first opening 3 and the second opening 4 are arranged opposite to each other and the distance between them is not less than 1m. The housing has a receiving chamber that communicates with both the first opening 3 and the second opening 4. The receiving chamber has a heat-conducting plate 5 that is attached to the temperature sensing cable, a heating wire unit 6 that heats the heat-conducting plate, and a control circuit board 7 that controls the heating wire unit 6.

[0027] When in use, open the upper shell 1 and the lower shell 2, place the 1m long temperature sensing cable segment to be tested in the area between the first opening 3 and the second opening 4, then close the upper shell 1 and the lower shell 2, and control the heating wire unit 6 to operate through the control circuit board 7 to raise the temperature in the containment chamber to the set detection temperature to achieve the testing purpose.

[0028] This method can uniformly heat a 1-meter-long temperature-sensing cable segment with minimal heat loss, ensuring accurate heating temperature. It is also highly portable, allowing a single person to quickly complete the task, significantly improving testing efficiency.

[0029] Preferably, the housing is provided with control buttons 8 and a display screen 9 on the operation control circuit board 7, and the display screen 9 is connected to the control circuit board 7; the control circuit board 7 is provided with a temperature sensor for detecting the internal temperature of the receiving cavity; with this design, temperature control can be performed conveniently, and the current temperature status can be displayed on the display screen 9, improving the ease of operation; of course, both can also be replaced by a touch screen, and such equivalent replacement schemes also fall within the protection scope of this application.

[0030] Preferably, a heat insulation plate 10 is provided in the cavity, and the heating wire unit 6 is located between the heat conduction plate 5 and the heat insulation plate 10; the main function of the heat insulation plate 10 is to insulate heat and prevent the heating wire unit 6 from escaping from the bottom, so that the heat is concentrated on the heat conduction plate 5.

[0031] Preferably, the heating wire unit 6 includes a mounting plate 60 and a heating wire 61; the heat-conducting plate 5, the mounting plate 60, the heat insulation plate 10 and the lower shell 2 are connected in sequence; these plates are connected as a whole, with good integrity, and there will be no loosening, displacement or even falling off when the upper shell 1 is opened.

[0032] Preferably, the cavity is provided with a top cover 11, and the top cover 11, the control circuit board 7 and the upper shell 1 are connected in sequence; connecting these parts into one unit is also to ensure the integrity of the whole; in order to facilitate the control circuit board 7 to control the connection with the heating wire unit 6, wire holes can be opened on the top cover 11 and the heat conduction plate 5.

[0033] Preferably, the upper cover 11 and the heat-conducting plate 5 work together to clamp and fix the temperature-sensing cable; that is, by controlling the distance between the upper cover 11 and the heat-conducting plate 5, after the upper shell 1 and the lower shell 2 are closed, the upper cover 11 and the heat-conducting plate 5 can clamp and fix the temperature-sensing cable to ensure that the heat-conducting plate 5 can fit against the temperature-sensing cable for heating, thereby improving the reliability of heating.

[0034] Preferably, the device further includes a first rubber plug 12 and a second rubber plug 13 corresponding to the sealing of the first opening 3 and the second opening 4; the purpose of this design is to further reduce heat loss from the first opening 3 and the second opening 4; when sealing the corresponding openings, the rubber plugs will squeeze the temperature sensing cable, and the shape of the rubber plugs can be designed as needed.

[0035] Preferably, on the opposite side surfaces of the upper shell 1 and the lower shell 2, a first half-hole and a second half-hole are respectively provided on the two opposite side edges of one, and a third half-hole and a fourth half-hole are respectively provided on the two opposite side edges of the other; the first half-hole and the third half-hole combine to form a first opening 3, and the second half-hole and the fourth half-hole combine to form a second opening 4; this design is more reasonable than the design of a single-sided opening.

[0036] Preferably, one end of the opposite surface of the upper shell 1 and the lower shell 2 is hinged together (such as...). Figures 1-4 The hinge 14 shown is connected at one end via a snap fastener 15 (as shown). Figures 1-4 As shown in the picture (in the form of a satchel), it is easy to assemble and disassemble, has good overall integrity, and is low in cost.

[0037] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A portable temperature-sensing cable fire detector alarm testing device, characterized in that, The device includes a housing, which is composed of a detachably connected upper shell and a lower shell. The housing has a first opening and a second opening at the connection between the upper and lower shells to accommodate a temperature-sensing cable. The first opening and the second opening are positioned opposite each other and spaced at least 1 meter apart. The housing contains a receiving chamber that communicates with both the first and second openings. Within the receiving chamber, a heat-conducting plate is fitted to the temperature-sensing cable, a heating wire unit for heating the heat-conducting plate, and a control circuit board for controlling the heating wire unit. A heat insulation plate is provided in the receiving cavity, and the heating wire unit is located between the heat-conducting plate and the heat insulation plate; the heating wire unit includes a mounting plate and a heating wire; the heat-conducting plate, the mounting plate, the heat insulation plate and the lower shell are connected in sequence; an upper cover is provided in the receiving cavity, and the upper cover, the control circuit board and the upper shell are connected in sequence; the upper cover cooperates with the heat-conducting plate to clamp and fix the temperature sensing cable.

2. The portable temperature-sensing cable fire detector alarm testing device according to claim 1, characterized in that, The housing is equipped with control buttons for operating the control circuit board.

3. The portable temperature-sensing cable fire detector alarm testing device according to claim 2, characterized in that, The housing is equipped with a display screen, which is connected to the control circuit board; the control circuit board is equipped with a temperature sensor for detecting the internal temperature of the receiving cavity.

4. The portable temperature-sensing cable fire detector alarm testing device according to claim 1, characterized in that, The device also includes a first rubber plug and a second rubber plug that correspondingly seal the first opening and the second opening.

5. The portable temperature-sensing cable fire detector alarm testing device according to claim 1, characterized in that, On the opposite side surfaces of the upper shell and the lower shell, a first half-hole and a second half-hole are respectively provided on the two opposite side edges of one shell, and a third half-hole and a fourth half-hole are respectively provided on the two opposite side edges of the other shell; the first half-hole and the third half-hole combine to form the first opening, and the second half-hole and the fourth half-hole combine to form the second opening.

6. The portable temperature-sensing cable fire detector alarm testing device according to claim 1, characterized in that, The upper shell and the lower shell are hinged at one end to each other on opposite sides, and connected by a snap fastener at the other end.

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