Plug type calorimeter

Abstract

The utility model relates to the technical field of temperature measurement, and discloses a plug type calorimeter which comprises a shell and a limiting body in threaded connection with the shell, a junction ball is fixedly installed on the top face of the limiting body, a wiring assembly used for being connected with a wire is arranged on the wall face of the limiting body, and the wiring assembly comprises an abutting rod, a ball socket, a wiring column and a supporting body. The abutting rods are detachably connected with the limiting body, the binding posts are fixedly connected with the abutting rods, the supporting body is detachably connected with the abutting rods, ball sockets are formed in the wall faces of the abutting rods, and through the two obliquely-extending abutting rods, when the limiting body is fastened, the abutting rods are squeezed by the bottom of the base body till the abutting rods are attached to a knot ball; according to the scheme, the junction ball and the thermocouple wire are connected more conveniently, only the thermocouple wire and the binding post need to be connected and locked in the assembling process, and the junction ball and thermocouple wire connecting structure has the advantages of being convenient to assemble, high in efficiency and stable and firm in connection.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature measurement, in particular to a plug calorimeter. Background Art

[0002] The prior art discloses an ultra-high temperature micro plug calorimeter (CN202122885653.0), which includes a shell made of a high temperature resistant and low thermal conductivity material, a substrate is arranged in the shell, two thermocouple wires made of different materials are arranged at the lower end of the substrate, the ends of the two thermocouple wires are fixed on a ball, the ball is fixed on the substrate, and a packaging mechanism is arranged between the thermocouple wire and the shell;

[0003] In the prior art, the thermocouple wire is wrapped by a heat shrink tube so that only a part of the thermocouple wire is connected to the ball for heat conduction, and the connection between the thermocouple and the ball is adhesively bonded or welded, which causes certain inconveniences during the assembly process. After assembly, the connection position between the thermocouple wire and the ball is in a sealed cavity. The bonding or welding method can easily cause the thermocouple wire to fall off with repeated heating and cooling, affecting the stability of the connection. The connection method between the thermocouple wire and the ball has a certain room for optimization.

[0004] For this purpose, we propose a plug calorimeter. Utility Model Content

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a plug calorimeter.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a plug calorimeter, comprising a shell, the shell having a cavity; a base fixedly installed in the shell cavity; a limit body threadedly connected to the shell, a knot ball fixedly installed on the top surface of the limit body, the knot ball can abut against the bottom of the base body, the wall surface of the limit body is provided with a wiring assembly for connecting the wire, the wiring assembly includes a resistance rod, a ball socket, a terminal and a support body, the resistance rod is detachably connected to the limit body, the terminal is fixedly connected to the resistance rod, the support body is detachably connected to the resistance rod, a ball socket is provided on the wall surface of the resistance rod, the resistance rod can be squeezed and pushed by the base and fit with the knot ball, and two groups of wiring assemblies are symmetrically arranged on the top of the limit body.

[0007] As a preferred embodiment of the utility model, the abutment rod forms a rectangular metal plate structure, the abutment rod extends upwardly and obliquely toward the knot, and the two abutment rods are distributed in an outward-facing "X" shape.

[0008] As a preferred embodiment of the present invention, the wiring assembly further comprises a cushion block, the abutment rod is fixedly connected to the cushion block, and the cushion block is locked with the limiting body by means of bolts.

[0009] As a preferred embodiment of the utility model, a notch is provided on the top surface of the limiting body for installing a cushion block, the cushion block is located in the notch, a threaded hole is provided on the bottom surface of the limiting body located in the notch, and a bolt is connected to the threaded hole to press and lock the cushion block.

[0010] As a preferred embodiment of the present invention, the ball socket is provided on the bottom surface of the abutment rod, and the ball socket forms an arc-shaped groove.

[0011] As a preferred embodiment of the present invention, the support body forms a rubber column structure, the top surface of the abutment rod is provided with a vertical groove for installing the support body, the support body and the vertical groove are interference fit, and the top surface of the support body forms a spherical convex surface.

[0012] As a preferred embodiment of the utility model, the limiter forms a cylindrical structure with an open top, the outer wall of the limiter is provided with threads, and the bottom of the limiter is provided with two through holes for threading, and the connecting wires pass through the through holes to be electrically connected to the terminal.

[0013] Beneficial Effects

[0014] The utility model provides a plug calorimeter. It has the following beneficial effects:

[0015] 1. This plug-type calorimeter has two obliquely extending abutment rods. When the limiting body is tightened, the abutment rod is squeezed by the bottom of the base until it fits with the junction ball. The abutment rod is provided with a ball socket so that the bottom of the abutment rod can fully contact the spherical surface of the junction ball. Compared with the prior art, this solution is more convenient for connecting the junction ball and the thermocouple wire. During assembly, it is only necessary to connect and lock the thermocouple wire with the terminal. The terminal and the abutment rod are integrally formed. The wall of the terminal is provided with a mounting hole. The wall of the terminal is also provided with a bolt. The thermocouple wire is pressed into the mounting hole of the terminal by the bolt. It is easy to assemble, efficient and has a stable and firm connection.

[0016] 2. This plug-type calorimeter can reduce heat conduction between the resistance rod and the limiter, and has the characteristic of easy installation of the resistance rod. At the same time, it ensures the detection accuracy and reduces the probability of affecting the detection accuracy due to heat conduction between the resistance rod and other components.

[0017] 3. In this plug-type calorimeter, the spacer is sintered with ceramic material, thereby reducing heat conduction between the resistance rod and the limiter, and has the characteristic of easy installation of the resistance rod. At the same time, it ensures the detection accuracy and reduces the probability of affecting the detection accuracy due to heat conduction between the resistance rod and other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the overall three-dimensional diagrams of the utility model;

[0019] Figure 2This is the second overall stereogram of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation of the interference rod and the limiting body of the utility model;

[0021] Figure 4 This is a three-dimensional diagram of the limiting body of the utility model;

[0022] Figure 5 It is a three-dimensional schematic diagram of the resistance rod and the knot ball of the utility model.

[0023] Legend: 10, housing; 11, base; 12, limiter; 13, ball; 20, resistance rod; 21, ball socket; 22, terminal; 23, support body; 24, spacer. DETAILED DESCRIPTION

[0024] A plug calorimeter, such as Figure 1 and Figure 2 As shown, it includes a shell 10, the shell 10 has a cavity; a base 11 fixedly installed in the cavity of the shell 10; a limit body 12 threadedly connected to the shell 10, and a ball 13 is fixedly installed on the top surface of the limit body 12, and the ball 13 can contact the bottom of the base 11. Specifically, the shell 10 is a circular tube structure made of sintered zirconium oxide, and the base 11 is a solid cylindrical structure machined from oxygen-free copper TU1. The ball 13 is spherical, and is connected to the ball 13 through two thermocouple wires, whose specific models and specifications are not limited here, to realize temperature conversion detection. A heat shrink tube is provided on the outside of the thermocouple wire to ensure that the thermocouple wire only contacts the ball 13. This is an existing well-known technology and will not be repeated here.

[0025] like Figure 2 and Figure 3As shown, the wall surface of the limiting body 12 is provided with a wiring assembly for connecting the wire, and the wiring assembly includes a resistance rod 20, a ball socket 21, a terminal 22 and a support body 23. The resistance rod 20 is detachably connected to the limiting body 12, the terminal 22 is fixedly connected to the resistance rod 20, and the support body 23 is detachably connected to the resistance rod 20. The wall surface of the resistance rod 20 is provided with a ball socket 21, and the resistance rod 20 can be pushed by the base body 11 and fit with the knot ball 13. Two groups of wiring assemblies are symmetrically arranged on the top of the limiting body 12. The resistance rod 20 forms a rectangular metal plate structure, and the resistance rod 20 extends upwardly toward the knot ball 13. The two resistance rods 20 are distributed in an outward-facing eight-character shape. The ball socket 21 is provided on the bottom surface of the resistance rod 20, and the ball socket 21 forms an arc-shaped groove. The support body 23 forms a rubber column structure. The top surface of the resistance rod 20 is provided with a vertical groove for installing the support body 23, and the support body 23 is interference-fitted with the vertical groove The top surface of the support body 23 forms a spherical convex surface. In the present embodiment, it should be noted that the abutment rod 20 is made of metal to ensure the connection between the thermocouple wire and the junction ball 13. Through the two abutment rods 20 extending obliquely, when the limit body 12 is tightened, the abutment rod 20 is squeezed by the bottom of the base 11 until it fits with the junction ball 13. The abutment rod 20 is provided with a ball socket 21, so that the bottom of the abutment rod 20 can fully contact the spherical surface of the junction ball 13. Compared with the prior art, the present embodiment is more convenient for connecting the junction ball 13 and the thermocouple wire. During assembly, it is only necessary to connect and lock the thermocouple wire with the terminal 22. The terminal 22 and the abutment rod 20 are integrally formed. The wall surface of the terminal 22 is provided with a mounting hole. The wall surface of the terminal 22 is also provided with a bolt. The thermocouple wire is pressed into the mounting hole of the terminal 22 by the bolt. It is easy to assemble, efficient and has a stable and firm connection.

[0026] like Figure 5 As shown, the wiring assembly also includes a pad 24, the abutment rod 20 is fixedly connected to the pad 24, the pad 24 is locked with the limit body 12 by bolts, the top surface of the limit body 12 is provided with a notch for installing the pad 24, the pad 24 is located in the notch, the limit body 12 is located in the notch inner bottom surface is provided with a threaded hole, the bolt is connected to the threaded hole and the pad 24 is pressed and locked, the pad 24 is sintered with a ceramic material, thereby reducing heat conduction between the abutment rod 20 and the limit body 12, and has the characteristic of facilitating the installation of the abutment rod 20, and at the same time, ensuring the detection accuracy and reducing the probability of affecting the detection accuracy due to heat conduction between the abutment rod 20 and other components.

[0027] like Figure 4 As shown, the limiting body 12 forms a cylindrical structure with an open top, the outer wall of the limiting body 12 is provided with threads, and the bottom of the limiting body 12 is provided with two through holes for threading. The connecting wire passes through the through holes and is electrically connected to the terminal 22. The thermocouple wire is passed through the through holes and introduced into the cavity of the limiting body 12. The thermocouple wire can be a K-type thermocouple, which will not be described in detail here.

[0028] The working principle of the utility model is as follows: the thermocouple wire is passed through the through hole and introduced into the cavity of the limiting body 12, the terminal 22 and the abutment rod 20 are integrally formed, the wall of the terminal 22 is provided with a mounting hole, the wall of the terminal 22 is also provided with a bolt, the thermocouple wire is pressed into the mounting hole of the terminal 22 by the bolt, the two obliquely extending abutment rods 20, when the limiting body 12 is tightened, the abutment rod 20 is squeezed by the bottom of the base 11 until it fits with the knot ball 13, the abutment rod 20 is provided with a support body 23, so that the bottom of the abutment rod 20 can fully contact the spherical surface of the knot ball 13, realize the connection between the thermocouple wire and the knot ball 13, and the limiting body 12 and the shell 10 are threadedly tightened to realize assembly.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A plug calorimeter, comprising a housing (10), the housing (10) having a cavity; a base (11) fixedly mounted in the cavity of the housing (10); a stopper (12) threadedly connected to the housing (10), a ball (13) fixedly mounted on the top surface of the stopper (12), the ball (13) being able to abut against the bottom of the base (11), characterized in that: The wall surface of the limiting body (12) is provided with a wiring assembly for connecting a wire, and the wiring assembly comprises a contact rod (20), a ball socket (21), a terminal (22) and a support body (23); the contact rod (20) is detachably connected to the limiting body (12); the terminal (22) is fixedly connected to the contact rod (20); the support body (23) is detachably connected to the contact rod (20); the wall surface of the contact rod (20) is provided with a ball socket (21); the contact rod (20) can be pushed by the base body (11) and fit with the ball (13); and two groups of wiring assemblies are symmetrically arranged on the top of the limiting body (12).

2. The plug calorimeter according to claim 1, characterized in that: The abutment rod (20) forms a rectangular metal plate structure, and the abutment rod (20) extends obliquely upward toward the knot (13), and the two abutment rods (20) are distributed in an outward-facing "X" shape.

3. The plug calorimeter according to claim 1, characterized in that: The wiring assembly also includes a cushion block (24), the abutment rod (20) is fixedly connected to the cushion block (24), and the cushion block (24) is locked with the limiting body (12) by means of bolts.

4. The plug calorimeter according to claim 3, characterized in that: The top surface of the limiting body (12) is provided with a notch for installing a cushion block (24), the cushion block (24) is located in the notch, and the bottom surface of the limiting body (12) located in the notch is provided with a threaded hole, and a bolt is connected to the threaded hole to press and lock the cushion block (24).

5. The plug calorimeter according to claim 1, characterized in that: The ball socket (21) is arranged on the bottom surface of the abutting rod (20), and the ball socket (21) forms an arc-shaped groove.

6. The plug calorimeter according to claim 1, characterized in that: The support body (23) forms a rubber column structure, and the top surface of the abutting rod (20) is provided with a vertical groove for installing the support body (23). The support body (23) and the vertical groove are interference fit, and the top surface of the support body (23) forms a spherical convex surface.

7. The plug calorimeter according to claim 1, characterized in that: The limiting body (12) is formed into a cylindrical structure with an open top, the outer wall of the limiting body (12) is provided with threads, and the bottom of the limiting body (12) is provided with two through holes for threading, and the connecting wires pass through the through holes to be electrically connected to the terminal (22).

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