Thermocouple multi-interface socket with spring structure
By designing a multi-interface thermocouple socket with a spring structure, the problem of traditional sockets being unable to quickly connect non-standard connectors is solved, achieving fast and stable electrical connections. It is suitable for various connector types, improving operational efficiency and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-03-13
AI Technical Summary
Traditional thermocouple sockets cannot quickly connect non-standard shaped connectors, resulting in time-consuming and laborious operation, a high risk of short circuits, and the easy loss of small components.
Design a multi-interface thermocouple socket with a spring structure, including a fixed base, a positive terminal, a negative terminal, a fixed module, a sliding module, and a spring. The spring supports the shaft and the sliding module to achieve quick clamping connection of non-standard connectors, and also supports thermocouple connection of standard interfaces.
It enables rapid and reliable connection of thermocouple connectors of different shapes, improves wiring efficiency, ensures the stability of electrical connections, and reduces operational difficulty and the risk of component loss.
Smart Images

Figure CN121655720A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of measurement technology and is a connector structure, specifically relating to a mechanism for quickly connecting thermocouples of different types of connectors. Background Technology
[0002] Traditional thermocouple sockets only have standard cylindrical or chisel-shaped sockets, allowing for quick connection of thermocouples with standard cylindrical or chisel-shaped reference terminals. However, when the reference terminal has various non-standard shapes (such as electrode screws or U-shaped forks), the socket cannot be directly connected. In this case, the screws must be unscrewed, the thermocouple socket disassembled, and then the reference terminal and the signal wire to be connected must be connected via screws, which is time-consuming, laborious, and prone to short circuits. Furthermore, because the screws and washers inside the thermocouple socket are small components, they are difficult to handle and easily lost, hindering quick thermocouple connection. Summary of the Invention
[0003] The purpose of this invention is to solve the above problems by providing a multi-interface thermocouple socket with a spring structure, which enables quick connection of thermocouples and is applicable to most thermocouples with different interface forms at the reference end.
[0004] To achieve the aforementioned objectives, the technical solution of this invention is as follows: a multi-interface thermocouple socket with a spring structure, comprising a fixed base, a positive terminal, a negative terminal, a fixed module, a sliding module, and a spring; the positive and negative terminals pass through the through holes of the fixed base, and the horizontal pad portions of the positive and negative terminals and the signal wire are fixed to the middle of the fixed base via the fixed module; the ends of the horizontal pads are also provided with upward-curving vertical portions; a spring support shaft is fixed to the right end of the fixed base, and the spring is fitted into the spring support shaft; the sliding module slides outward along the spring support shaft, placing the non-standard thermocouple connector between the vertical pad portion and the sliding module; the spring pushes the sliding module back, clamping the non-standard connector of the thermocouple reference end with the socket electrode, thus achieving rapid connection for non-standard connector types; simultaneously, connection with a standard thermocouple male connector can be achieved through the standard interfaces of the positive and negative terminals.
[0005] Furthermore, the fixed base has a spring support shaft, the axis of which points to the center point of the positive and negative electrode pads, and the spring support shaft is fitted with a spring.
[0006] Furthermore, the through hole of the sliding module overlaps with the spring support shaft; the through hole of the sliding module is divided into two holes with different diameters, the smaller diameter hole limits the spring, and the larger diameter hole allows the spring support shaft to pass through freely.
[0007] Furthermore, both the positive and negative terminals consist of a standard interface, a horizontal gasket, and a vertical gasket, which are a continuous and unified whole.
[0008] Furthermore, the horizontal gaskets of the positive and negative terminals have through holes that overlap with the through holes on the fixed base. The signal line is fixedly connected to the horizontal gasket by a screw passing through the through hole. The signal line passes through the interlayer between the fixed module, the sliding module and the fixed base, and is led out through the rubber ring in the wiring hole.
[0009] Furthermore, the fixed base has a stepped structure, with the higher part used to install the marking interfaces of the positive and negative terminals, and the lower part used to install the fixed module and the sliding module, respectively.
[0010] Furthermore, the upper surface of the fixed base and the sliding module are engaged by a sliding groove.
[0011] Furthermore, the fixing module can be connected to the fixing base by screws, and the through holes of the fixing module overlap with the through holes of the fixing base.
[0012] The advantages of this invention are: simple structure, reliable and durable, low cost, and wide applicability in thermocouple connection scenarios. It solves the problem of time-consuming and labor-intensive wiring of various irregularly shaped thermocouple connectors, including electrode screws, U-shaped forks, banana plugs, pin terminals, copper lugs, and other types of terminals. This ensures stable electrical connections while improving wiring efficiency, and it is easy to promote and apply, possessing significant practical value. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the thermocouple socket structure of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 This is a cross-sectional view of the structure of the present invention; Figure 4 This is a schematic diagram of the end interface of the thermocouple socket of the present invention.
[0014] In this diagram, 1—fixed base, 2—negative terminal (standard interface), 3—positive terminal (horizontal washer), 4—positive terminal (standard interface), 5—fixed module, 6—negative terminal (horizontal washer), 7—negative terminal (vertical washer), 8—positive terminal (vertical washer), 9—spring, 10—wire hole, 11—rubber ring, 12—sliding module, 13—spring support shaft, 14—fixed module through hole, 15—fixed base through hole, 16—fixed base washer through hole. 2, 6, and 7 form the negative terminal; 3, 4, and 8 form the positive terminal. Detailed Implementation
[0015] The features and illustrative embodiments of various aspects of the present invention will now be described in detail. Numerous specific design details are set forth in the following detailed description to provide a more complete understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without some of these specific details. The following description of embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. The invention is by no means limited to any specific setup and method set forth below, but covers any improvements, substitutions, and modifications to the structures, methods, and devices without departing from the spirit of the invention. In the drawings and the following description, any parts not exhaustively described are considered to be common knowledge or conventional practices in the art.
[0016] It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other, and the various embodiments can be referenced and cited in each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0017] See appendix Figures 1-4 In the specific implementation of this invention, a multi-interface thermocouple socket with a spring structure is designed, including a fixed base 1, negative terminals (2, 6, 7), positive terminals (3, 4, 8), a fixed module 5, a sliding module 12, a spring support shaft 13, and a spring 9. The positive and negative terminals pass through pin holes in the fixed base. The positive and negative terminals include a front-end terminal portion, a horizontal gasket portion, and a vertical portion. Positive terminals 3, 4, and 8 and negative terminals 2, 6, and 7 are passed through the through-holes in the fixed base 1. The horizontal gasket portions 4 and 6 of the positive and negative terminals, along with the signal wire, are fixed to the middle of the fixed base 1 via the fixing module 5. The ends of the horizontal gaskets also have upward-curving vertical portions 7 and 8. A spring 9 is fitted onto a spring support shaft 13, which is fixed to the right end of the fixed base 1. The sliding module 12 slides outward along the spring support shaft 13, placing the non-standard thermocouple connector between the vertical gasket portion and the sliding module 12. The spring 9 pushes the sliding module 12 back, clamping the non-standard connector of the thermocouple reference end with the socket electrode, achieving rapid connection for non-standard connector types. Simultaneously, connection to a standard thermocouple male connector can be achieved through the standard interfaces of the positive and negative terminals.
[0018] In the structure designed in this invention, the horizontal shims (6, 7) and the signal line are fixed to the fixed base by screws through the through hole 16; the spring is fitted into the spring support shaft, the sliding module is slid outward along the spring support shaft, the vertical shims are lifted up, and the screws are connected to the fixed base after passing through the fixed module 5 through the through hole 14 and the through hole 15.
[0019] The method of using the present invention 1. For various types of terminals such as electrode screws, U-shaped forks, banana plugs, pin terminals, and copper lugs: Slide the sliding module outward by hand and place the terminals between the vertical pad and the sliding module, ensuring that the positive terminal is connected to the positive terminal and the negative terminal is connected to the negative terminal. After releasing, the spring will hold the terminal and the pad together to form a clamping connection.
[0020] 2. For chisel-shaped standard connectors, insert them directly into the chisel-shaped standard socket.
[0021] 3. For cylindrical standard connectors, insert them directly into the cylindrical standard socket inside the socket.
[0022] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be considered within the scope of protection of the present invention.
Claims
1. A multi-interface thermocouple socket with a spring structure, characterized in that, The device includes a fixed base, a positive terminal, a negative terminal, a fixed module, a sliding module, and a spring. The positive and negative terminals pass through the through-holes in the fixed base. The horizontal gasket portions of the positive and negative terminals, along with the signal wire, are fixed to the center of the fixed base via the fixed module. The ends of the horizontal gaskets also have upward-curving vertical portions. A spring support shaft is fixed to the right end of the fixed base. The spring is fitted onto the spring support shaft, and the sliding module slides outward along the spring support shaft. A non-standard thermocouple connector is placed between the vertical gasket portion and the sliding module. The spring pushes the sliding module back, clamping the non-standard connector of the thermocouple reference end with the socket electrode, achieving rapid connection for non-standard connector types. Simultaneously, it can connect to a standard thermocouple male connector via the standard interfaces of the positive and negative terminals.
2. A multi-interface thermocouple socket with a spring structure as described in claim 1, characterized in that, The fixed base has a spring support shaft, the axis of which points to the center point of the positive and negative electrode pads, and the spring support shaft is fitted with a spring.
3. A multi-interface thermocouple socket with a spring structure as described in claim 1, characterized in that, The through hole of the sliding module overlaps with the spring support shaft; the through hole of the sliding module is divided into two holes with different diameters. The smaller diameter hole limits the spring, while the larger diameter hole allows the spring support shaft to pass through freely.
4. A multi-interface thermocouple socket with a spring structure as described in claim 1, characterized in that, Both the positive and negative terminals consist of a standard interface, a horizontal gasket, and a vertical gasket, which are a continuous and unified whole.
5. A multi-interface thermocouple socket with a spring structure as described in claim 4, characterized in that, The horizontal gaskets of the positive and negative terminals have through holes that overlap with the through holes on the fixed base. The signal line is fixedly connected to the horizontal gasket by a screw passing through the through hole. The signal line passes through the interlayer between the fixed module, the sliding module and the fixed base, and is led out through the rubber ring in the wiring hole.
6. A multi-interface thermocouple socket with a spring structure as described in claim 5, characterized in that, The fixed base has a stepped structure. The higher part is used to install the marking interfaces of the positive and negative terminals, while the lower part is used to install the fixed module and the sliding module, respectively.
7. A multi-interface thermocouple socket with a spring structure as described in claim 6, characterized in that, The upper surface of the fixed base and the sliding module are fitted together by a sliding groove.
8. A multi-interface thermocouple socket with a spring structure as described in claim 5, characterized in that, The fixing module can be connected to the fixing base by screws, and the through holes of the fixing module overlap with the through holes of the fixing base.