Temperature control probe for low-temperature heating of valve

Abstract

The utility model relates to the technical field of fire-fighting parts, in particular to a temperature control probe for low-temperature heating of a valve, which comprises a heating device for heating a fire-fighting smoke-exhausting fireproof valve, and the heating device is fixedly connected onto the fire-fighting smoke-exhausting fireproof valve. The heating device is electrically connected with a temperature control device used for continuously monitoring the temperature around the valve through a cable, and the temperature control device is fixedly installed on the fire-fighting smoke exhaust fireproof valve. The temperature control device comprises a shell with a containing cavity, a switching mechanism is installed at the upper end of the shell, a waterproof nut is installed at the upper end of the switching mechanism, a temperature control switch is installed at the bottom of the containing cavity of the shell, and the temperature control switch is electrically connected with the cable. According to the utility model, the temperature around the valve can be continuously monitored, and the start and stop of the heating device can be automatically controlled according to the temperature change, so as to ensure the normal operation of the fire-fighting smoke-exhaust fireproof valve in a low-temperature environment.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting components, in particular to a temperature control probe used for low-temperature heating of valves. Background Art

[0002] Fire smoke exhaust fire damper is a key safety device used to prevent the spread of fire, mainly installed in the flue, ventilation system or chimney of the building. Its working principle is to achieve normal discharge of smoke and automatic closure in case of fire through the action of active air blades and spring mechanism.

[0003] Under normal use, the fire smoke exhaust fire damper allows the smoke in the flue to be discharged normally and keeps the ventilation duct unobstructed; once a fire occurs, when the smoke enters the fire smoke exhaust fire damper through the flue, the air blades will be pushed closed by the smoke, thereby preventing the smoke and flame from flowing back and preventing the fire from spreading to other areas. However, in low temperature environments, freezing of the valve blades or poor operation may seriously affect its performance and even cause the entire smoke exhaust system to fail.

[0004] To this end, the utility model provides a temperature control probe for low-temperature heating of valves. Utility Model Content

[0005] In view of the above-mentioned problems existing in the prior art, the purpose of the utility model is to continuously monitor the temperature around the valve and automatically control the start and stop of the heating device according to the temperature change to ensure that the fire smoke exhaust fire damper works normally in a low temperature environment.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A temperature control probe for low-temperature heating of valves, comprising a heating device for heating a fire smoke exhaust fire damper, the heating device being fixedly connected to the fire smoke exhaust fire damper, the heating device being electrically connected to a temperature control device for continuously monitoring the temperature around the valve through a cable, the temperature control device being fixedly mounted on the fire smoke exhaust fire damper;

[0008] The temperature control device includes a shell with a accommodating chamber, a switching mechanism is installed on the upper end of the shell, a waterproof nut is installed on the upper end of the switching mechanism, a temperature control switch is installed at the bottom of the accommodating chamber of the shell, and the temperature control switch is electrically connected to the cable.

[0009] As a further solution of the utility model: the shell is made of a corrosion-resistant metal material, and the shell is provided with a first cylindrical shell, a second cylindrical shell, a third cylindrical shell and a regular hexagonal prism shell, the first cylindrical shell, the second cylindrical shell, the third cylindrical shell and the regular hexagonal prism shell are connected in sequence from bottom to top, the first cylindrical shell is the lowermost end of the shell, and the regular hexagonal prism shell is the uppermost end of the shell;

[0010] The outer diameter of the first cylindrical shell is smaller than that of the second cylindrical shell, the outer diameter of the second cylindrical shell is smaller than that of the third cylindrical shell, the inner diameter of the inscribed circle of the end face of the regular hexagonal prism shell is greater than or equal to the outer diameter of the third cylindrical shell, the outer surface of the third cylindrical shell is processed with external threads, and the inner surfaces of the third cylindrical shell and the regular hexagonal prism shell are both processed with internal threads.

[0011] As a further solution of the utility model: a thermal grease is adhered to the bottom end of the accommodating chamber of the shell, and the bottom of the accommodating chamber of the shell is also adhered to the temperature control switch through the thermal grease. The temperature control switch is provided with a pair of metal electrode contacts, and the temperature control switch is electrically connected to the cable through the pair of metal electrode contacts.

[0012] As a further solution of the utility model: the transfer mechanism is made of a corrosion-resistant metal material, and the transfer mechanism is provided with a first cylinder, a regular hexagonal prism and a second cylinder, the first cylinder, the regular hexagonal prism and the second cylinder are sequentially connected from bottom to top, the first cylinder is the lowermost end of the transfer mechanism, the second cylinder is the uppermost end of the transfer mechanism, and the transfer mechanism is provided with a stepped through hole on the upper end surface;

[0013] The diameter of the first cylinder is larger than that of the second cylinder. The diameters of the first cylinder and the second cylinder are both smaller than the diameter of the inscribed circle of the end face of the regular hexagonal prism. The outer surfaces of the first cylinder and the second cylinder are both processed with external threads.

[0014] As a further solution of the utility model: a silicone support frame is sleeved between the stepped through hole of the waterproof nut and the cable.

[0015] As a further solution of the utility model: the waterproof nut is made of a corrosion-resistant metal material, and the waterproof nut is provided with a ring body, a regular hexagonal ring body and a fourth cylindrical shell, the ring body, the regular hexagonal ring body and the fourth cylindrical shell are connected in sequence from bottom to top, the ring body is the lowermost end of the waterproof nut, and the fourth cylindrical shell is the uppermost end of the waterproof nut;

[0016] The diameter of the inscribed circle of the end face of the regular hexagonal ring body is greater than or equal to the outer diameter of the annular body and the fourth cylindrical shell, the outer diameter of the annular body and the fourth cylindrical shell are equal, the inner surfaces of the annular body and the regular hexagonal ring body are also processed with internal threads, and a through hole is also provided on the upper end face of the waterproof nut.

[0017] As a further solution of the utility model: the electrical connection between the temperature control switch and the cable is also covered with an insulating sleeve, and the insulating sleeve is also placed in the accommodating chamber of the shell.

[0018] As a further solution of the utility model: the housing, the switching mechanism and the waterproof nut are all made of SUS316L material in one piece.

[0019] As a further solution of the utility model: the cable is a low-smoke, halogen-free, flame-retardant cable.

[0020] As a further solution of the utility model: the temperature control switch is normally closed.

[0021] As described above, the temperature control probe for low-temperature heating of valves provided by the utility model has the following beneficial effects:

[0022] The utility model utilizes the above-mentioned temperature control probe for low-temperature heating of the valve. Through the coordinated use of a heating device and a temperature control device, it can continuously monitor the temperature around the valve and automatically control the start and stop of the heating device according to temperature changes to ensure that the fire smoke exhaust fire damper works normally in a low-temperature environment.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 This is a schematic diagram of the structure of a temperature control device of a temperature control probe for low-temperature heating of a valve applied for the utility model;

[0026] Figure 2 This is a bottom view of a temperature control device of a temperature control probe for low-temperature heating of a valve applied for the utility model;

[0027] Figure 3 for Figure 2Sectional view along AA direction;

[0028] Figure 4 This is a schematic diagram of the shell structure of a temperature control probe for low-temperature heating of valves applied for the utility model;

[0029] Figure 5 This is a schematic diagram of the structure of a switching mechanism of a temperature control probe for low-temperature heating of a valve applied for the utility model.

[0030] Summary of Figure Numbers:

[0031] 1. Temperature control device; 101. Housing; 111. Accommodating chamber; 121. Thermal grease; 102. Transfer mechanism; 112. Stepped through hole; 103. Waterproof nut; 104. Temperature control switch; 105. Cable; 106. Silicone support frame; 107. Insulating sleeve. DETAILED DESCRIPTION

[0032] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0033] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that can be produced by the utility model and the purposes that can be achieved, should still fall within the scope of the technical content disclosed in this utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this utility model. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of the implementation of this utility model. The specific structure can be described with reference to the drawings of the patent application.

[0034] The utility model provides a schematic diagram of the structure of a bathroom door opening sensor switch. Figures 1 to 5 As shown, it includes a heating device for heating the fire smoke exhaust fire damper, the heating device is fixedly connected to the fire smoke exhaust fire damper, the heating device is electrically connected to the temperature control device 1 for continuously monitoring the temperature around the valve through a cable 105, and the temperature control device 1 is fixedly installed on the fire smoke exhaust fire damper;

[0035] The temperature control device 1 includes a shell 101 having a accommodating chamber 111, a switching mechanism 102 is installed on the upper end of the shell 101, a waterproof nut 103 is installed on the upper end of the switching mechanism 102, a temperature control switch 104 is installed at the bottom of the accommodating chamber 111 of the shell 101, and the temperature control switch 104 is electrically connected to the cable 105.

[0036] Specifically, the specific structure of the housing 101 is as follows. Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, in this embodiment, the housing 101 is made of a corrosion-resistant metal material in one piece, and the housing 101 is provided with a first cylindrical shell, a second cylindrical shell, a third cylindrical shell and a regular hexagonal prism shell, the first cylindrical shell, the second cylindrical shell, the third cylindrical shell and the regular hexagonal prism shell are sequentially connected from bottom to top, the first cylindrical shell is the lowermost end of the housing 101, and the regular hexagonal prism shell is the uppermost end of the housing 101;

[0037] The outer diameter of the first cylindrical shell is smaller than that of the second cylindrical shell, the outer diameter of the second cylindrical shell is smaller than that of the third cylindrical shell, the inner diameter of the inscribed circle of the end face of the regular hexagonal prism shell is greater than or equal to the outer diameter of the third cylindrical shell, the outer surface of the third cylindrical shell is processed with external threads, the external threads processed on the outer surface of the third cylindrical shell are used to be screwed onto the fire smoke exhaust fire damper, the inner surfaces of the third cylindrical shell and the regular hexagonal prism shell are both processed with internal threads, the inner surfaces of the third cylindrical shell and the regular hexagonal prism shell are both processed with internal threads for screwing with the adapter mechanism 102.

[0038] Combination Figure 3 As shown, in this embodiment, a thermal grease 121 is adhered to the bottom of the accommodating chamber 111 of the shell 101, and the bottom of the accommodating chamber 111 of the shell 101 is also adhered to the temperature control switch 104 through the thermal grease 121. The temperature control switch 104 is provided with a pair of metal electrode contacts, and the temperature control switch 104 is electrically connected to the cable 105 through the pair of metal electrode contacts.

[0039] Specifically, the specific structure of the switching mechanism 102 is shown below. Figure 1 , Figure 2 , Figure 3 as well as Figure 5As shown, in this embodiment, the adapter mechanism 102 is made of a corrosion-resistant metal material in one piece, and the adapter mechanism 102 is provided with a first cylinder, a regular hexagonal prism and a second cylinder, the first cylinder, the regular hexagonal prism and the second cylinder are sequentially connected from bottom to top, the first cylinder is the lowermost end of the adapter mechanism 102, the second cylinder is the uppermost end of the adapter mechanism 102, and the adapter mechanism 102 is provided with a stepped through hole 112 on the upper end surface;

[0040] The diameter of the first cylinder is larger than the diameter of the second cylinder. The diameters of the first cylinder and the second cylinder are both smaller than the diameter of the inscribed circle of the end face of the regular hexagonal prism. The outer surfaces of the first cylinder and the second cylinder are both processed with external threads. The external threads processed on the outer surface of the first cylinder are used for screwing with the outer shell 101, and the external threads processed on the outer surface of the second cylinder are used for screwing with the waterproof nut 103.

[0041] Combination Figure 1 and Figure 3 As shown, the insulating sleeve 107 is also placed in the accommodating chamber 111 of the housing 101 , and a silicone support frame 106 is also sleeved between the stepped through hole 112 of the waterproof nut 103 and the cable 105 .

[0042] Specifically, the specific structure of the waterproof nut 103 is as follows. Figure 1 , Figure 2 as well as Figure 3 As shown, in this embodiment, the waterproof nut 103 is made of a corrosion-resistant metal material in one piece, and the waterproof nut 103 is provided with a torus, a regular hexagonal ring body and a fourth cylindrical shell, and the torus, the regular hexagonal ring body and the fourth cylindrical shell are sequentially connected from bottom to top, the torus is the lowermost end of the waterproof nut 103, and the fourth cylindrical shell is the uppermost end of the waterproof nut 103;

[0043] The diameter of the inscribed circle of the end face of the regular hexagonal ring body is greater than or equal to the outer diameter of the annular body and the fourth cylindrical shell, the outer diameter of the annular body and the fourth cylindrical shell are equal, the inner surfaces of the annular body and the regular hexagonal ring body are also processed with internal threads, and a through hole is also provided on the upper end face of the waterproof nut 103.

[0044] Combination Figure 1 and Figure 3 As shown, the electrical connection between the temperature control switch 104 and the cable 105 is also covered with an insulating sleeve 107 .

[0045] See also Figures 1 to 5 As shown, in this embodiment, the working principle of the utility model is as follows:

[0046] The temperature control device 1 can continuously monitor the temperature around the valve and automatically control the start and stop of the heating device according to the temperature change. When the temperature is lower than the set value, the temperature control device 1 will quickly sense and send the temperature signal to the control system of the heating device, triggering the heating device to heat the valve. As the temperature rises, once it reaches or exceeds the set value, the temperature control device 1 will send a signal to stop the heating process in time, thereby avoiding the safety hazards caused by overheating.

[0047] The housing 101, the adapter mechanism 102 and the waterproof nut 103 are all made of SUS316L material in one piece, and have the characteristics of being waterproof and corrosion-resistant. They can operate stably for a long time in a humid and highly corrosive environment, ensuring high reliability in a complex and changeable fire smoke exhaust system.

[0048] The cable 105 is a low-smoke, halogen-free, flame-retardant cable.

[0049] The temperature control switch 104 is normally closed.

[0050] As described above, the temperature control probe for low-temperature heating of valves provided by the utility model has the following beneficial effects:

[0051] The utility model utilizes the above-mentioned temperature control probe for low-temperature heating of the valve. Through the coordinated use of the heating device and the temperature control device 1, it can continuously monitor the temperature around the valve and automatically control the start and stop of the heating device according to the temperature change to ensure that the fire smoke exhaust fire damper works normally in a low-temperature environment.

[0052] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A temperature control probe for low temperature heating of valves, characterized in that: It includes a heating device for heating the fire smoke exhaust fire damper, the heating device is fixedly connected to the fire smoke exhaust fire damper, the heating device is electrically connected to a temperature control device for continuously monitoring the temperature around the valve through a cable, and the temperature control device is fixedly installed on the fire smoke exhaust fire damper; The temperature control device includes a shell with a accommodating chamber, a switching mechanism is installed on the upper end of the shell, a waterproof nut is installed on the upper end of the switching mechanism, a temperature control switch is installed at the bottom of the accommodating chamber of the shell, and the temperature control switch is electrically connected to the cable.

2. A temperature control probe for low temperature heating of valves according to claim 1, characterized in that: The shell is made of a corrosion-resistant metal material, and is provided with a first cylindrical shell, a second cylindrical shell, a third cylindrical shell and a regular hexagonal prism shell. The first cylindrical shell, the second cylindrical shell, the third cylindrical shell and the regular hexagonal prism shell are connected in sequence from bottom to top. The first cylindrical shell is the lowermost end of the shell, and the regular hexagonal prism shell is the uppermost end of the shell. The outer diameter of the first cylindrical shell is smaller than that of the second cylindrical shell, the outer diameter of the second cylindrical shell is smaller than that of the third cylindrical shell, the inner diameter of the inscribed circle of the end face of the regular hexagonal prism shell is greater than or equal to the outer diameter of the third cylindrical shell, the outer surface of the third cylindrical shell is processed with external threads, and the inner surfaces of the third cylindrical shell and the regular hexagonal prism shell are both processed with internal threads.

3. A temperature control probe for low temperature heating of valves according to claim 1, characterized in that: A thermal grease is adhered to the bottom of the housing chamber of the shell, and the bottom of the housing chamber of the shell is also adhered to the temperature control switch through the thermal grease. The temperature control switch is provided with a pair of metal electrode contacts, and the temperature control switch is electrically connected to the cable through the pair of metal electrode contacts.

4. A temperature control probe for low temperature heating of valves according to claim 1, characterized in that: The transfer mechanism is made of a corrosion-resistant metal material, and is provided with a first cylinder, a regular hexagonal prism and a second cylinder. The first cylinder, the regular hexagonal prism and the second cylinder are sequentially connected from bottom to top. The first cylinder is the lowermost end of the transfer mechanism, and the second cylinder is the uppermost end of the transfer mechanism. The transfer mechanism is provided with a stepped through hole on the upper end surface; The diameter of the first cylinder is larger than that of the second cylinder. The diameters of the first cylinder and the second cylinder are both smaller than the diameter of the inscribed circle of the end face of the regular hexagonal prism. The outer surfaces of the first cylinder and the second cylinder are both processed with external threads.

5. A temperature control probe for low temperature heating of valves according to claim 4, characterized in that: A silica gel support frame is sleeved between the stepped through hole of the waterproof nut and the cable.

6. A temperature control probe for low temperature heating of valves according to claim 1, characterized in that: The waterproof nut is made of a corrosion-resistant metal material in one piece, and is provided with a torus, a regular hexagonal ring body and a fourth cylindrical shell, which are sequentially connected from bottom to top, the torus is the lowermost end of the waterproof nut, and the fourth cylindrical shell is the uppermost end of the waterproof nut; The diameter of the inscribed circle of the end face of the regular hexagonal ring body is greater than or equal to the outer diameter of the annular body and the fourth cylindrical shell, the outer diameter of the annular body and the fourth cylindrical shell are equal, the inner surfaces of the annular body and the regular hexagonal ring body are also processed with internal threads, and a through hole is also provided on the upper end face of the waterproof nut.

7. A temperature control probe for low temperature heating of valves according to any one of claims 1 to 6, characterized in that: An insulating sleeve is also fitted around the electrical connection between the temperature control switch and the cable, and the insulating sleeve is also placed in the accommodating chamber of the shell.

8. A temperature control probe for low temperature heating of valves according to claim 2, 4 or 6, characterized in that: The housing, the adapter mechanism and the waterproof nut are all made of SUS316L material in one piece.

9. The temperature control probe for low temperature heating of valves according to claim 7, characterized in that: The cable is a low-smoke, halogen-free, flame-retardant cable.

10. The temperature control probe for low temperature heating of valves according to claim 7, characterized in that: The temperature control switch is normally closed.

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