Variable-length platinum resistor sleeve device of temperature transmitter

Abstract

The utility model relates to a platinum resistor sleeve device of a variable-length temperature transmitter, which comprises a length adjuster, a temperature change connecting piece, a first connecting piece and a second connecting piece, and the first connecting piece and the second connecting piece are respectively arranged at two ends of the length adjuster in a sealing manner. The length adjuster can adjust the first connecting piece and the second connecting piece to stretch out or retract relative to the length adjuster, a cavity channel used for containing a platinum resistor is formed in the length adjuster, the temperature change connecting piece, the first connecting piece and the second connecting piece in a penetrating mode, the first connecting piece is connected with the temperature change connecting piece in a sealed mode, and the second connecting piece is used for being connected with a pipeline. The temperature change connecting piece is used for assembling a platinum resistor. The length-adjustable sleeve has the advantages that the structural design is simple and reasonable, the length of the sleeve can be adjusted according to the length requirement of the platinum resistor of the temperature transmitter so as to achieve the purpose of adapting to the length of the platinum resistor of the temperature transmitter, the length-adjustable sleeve can replace all currently used sleeves with fixed lengths, resource waste is reduced, and convenience is brought to disassembly and assembly of the temperature transmitter.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas measurement industrial technology field, especially relate to a variable length's platinum resistance sleeve device of temperature transmitter. BACKGROUND

[0002] In the domestic natural gas measurement verification station, temperature transmitter is used for temperature measurement in the quantity value traceability and flowmeter verification, temperature monitoring in production operation etc.

[0003] At present, the platinum resistance sleeve used by temperature transmitter is made according to the length of platinum resistance, and the length is fixed, so that the platinum resistance sleeve of a temperature transmitter can be used only for a fixed temperature transmitter, and each temperature transmitter platinum resistance sleeve does not have universality, which causes certain resource waste at the verification station position and brings inconvenience to the daily disassembly and assembly of temperature transmitter.

[0004] Therefore, it is necessary to develop a variable length's platinum resistance sleeve device of temperature transmitter to overcome the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem to provide a variable length's platinum resistance sleeve device of temperature transmitter, and effectively overcomes the defects of prior art.

[0006] The technical scheme for solving the above technical problem of the utility model is as follows:

[0007] A variable length's platinum resistance sleeve device of temperature transmitter, including length adjuster, temperature change connecting piece, first connecting piece and second connecting piece, first connecting piece and second connecting piece are sealed in the both ends of length adjuster respectively, length adjuster can adjust first connecting piece and second connecting piece relative to its extension or retraction, length adjuster, temperature change connecting piece, first connecting piece and second connecting piece are provided with the cavity for the device platinum resistance in the through, first connecting piece is sealed with temperature change connecting piece, second connecting piece is used for connecting with pipeline, temperature change connecting piece is used for assembling platinum resistance.

[0008] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0009] Further, the length adjuster is a long straight circular tubular member.

[0010] Further, the first connecting piece and the second connecting piece are hollow studs, the two ends of the length adjuster are respectively provided with internal threads, one end of the first connecting piece extends into one end of the length adjuster and is screwed with each other, one end of the second connecting piece extends into the other end of the length adjuster and is screwed with each other, the screwing directions of the first connecting piece and the second connecting piece are opposite, and the screwing directions of the internal threads of the two ends of the length adjuster are opposite.

[0011] Further, the other end of the second connecting piece extends into a threaded interface of a pipeline adapter and is screwed with each other.

[0012] Further, the temperature change connecting piece is a hollow sleeve-shaped member, the one end of the temperature change connecting piece is internally provided with an internal thread, the other end of the first connecting piece extends into the one end of the temperature change connecting piece and is screwed with each other, and the other end of the temperature change connecting piece is provided with an external thread for being screwed with a platinum resistance adapter position.

[0013] Further, the opposite two sides of the middle section of the first connecting piece are provided with first planes for clamping the first connecting piece.

[0014] Further, the first locking nut is screwed on the first connecting piece.

[0015] Further, the opposite two sides of the middle section of the second connecting piece are provided with second planes for clamping the second connecting piece.

[0016] Further, the second locking nut is screwed on the second connecting piece.

[0017] Further, the opposite two sides of the length adjuster are provided with third planes for clamping the length adjuster.

[0018] The platinum resistance sleeve device of the variable length temperature transmitter has the advantages that the structure is simple and reasonable, the length of the sleeve can be adjusted according to the length requirement of the platinum resistance of the temperature transmitter, the sleeve is very flexible to use, can replace all the fixed length sleeves currently used, reduces resource waste, and brings convenience for disassembly and assembly of the temperature transmitter. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Fig. 1 is a structural schematic view of a platinum resistance sleeve device of a variable length temperature transmitter according to the present application;

[0020] Figure 2 Fig. 2 is a structural schematic view of another embodiment of the platinum resistance sleeve device of the variable length temperature transmitter according to the present application;

[0021] Figure 3 Fig. 3 is a structural schematic view of still another embodiment of the platinum resistance sleeve device of the variable length temperature transmitter according to the present application.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Length adjuster; 2. Temperature-sensitive connector; 3. First connector; 4. Second connector; 31. First locking nut; 41. Second locking nut. Detailed Implementation

[0024] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0025] Example: Figure 1 As shown, the platinum resistance sleeve device of the variable length temperature transmitter in this embodiment includes a length adjuster 1, a temperature-changing connector 2, a first connector 3, and a second connector 4. The first connector 3 and the second connector 4 are respectively sealed at both ends of the length adjuster 1. The length adjuster 1 can adjust the first connector 3 and the second connector 4 to extend or retract relative to it. A cavity for assembling the platinum resistance is provided through the length adjuster 1, the temperature-changing connector 2, the first connector 3, and the second connector 4. The first connector 3 is sealed to the temperature-changing connector 2. The second connector 4 is used to connect to a pipeline. The temperature-changing connector 2 is used to assemble the platinum resistance.

[0026] The platinum resistance sleeve device for the variable length temperature transmitter in this embodiment allows for adjustment of the length adjuster 1 during use. This enables the first connecting member 3 and the second connecting member 4 to extend or retract relative to the length adjuster 1 at both ends, thereby changing the overall length of the platinum resistance sleeve device. This adapts to the platinum resistance of temperature transmitters of different lengths, providing strong versatility. Overall, the structural design is simple and reasonable. The sleeve length can be adjusted according to the platinum resistance length requirements of the temperature transmitter to achieve compatibility with the length of the platinum resistance. It is highly flexible in use and can replace all currently used fixed-length sleeves, reducing resource waste and facilitating the assembly and disassembly of the temperature transmitter.

[0027] In this embodiment, the length adjuster 1 is a long, straight, cylindrical tube.

[0028] In a preferred embodiment, the first connector 3 and the second connector 4 are both hollow studs. The inner walls of both ends of the length adjuster 1 are respectively provided with internal threads. One end of the first connector 3 extends into the interior of one end of the length adjuster 1 and is screwed together. One end of the second connector 4 extends into the interior of the other end of the length adjuster 1 and is screwed together. The thread directions of the first connector 3 and the second connector 4 are opposite, and the corresponding internal thread directions of the two ends of the length adjuster 1 are opposite.

[0029] In the above embodiment, since the first connecting member 3 and the second connecting member 4 are both threaded members, and the thread directions of the two are opposite, and the first connecting member 3 and the second connecting member 4 are screwed with the two ends of the length adjuster 1 respectively, when the length adjuster 1 is operated to rotate, the first connecting member 3 and the second connecting member 4 remain fixedly connected with the pipe and the temperature change connecting member 2, and thus the rotation of the length adjuster 1 will cause the first connecting member 3 and the second connecting member 4 to move relatively along the length axis direction, achieving the purpose of "extension or retraction", so as to achieve the purpose of adjusting the length of the platinum resistance sleeve device, and the operation is very simple and fast.

[0030] As a preferred embodiment, the other end of the second connecting member 4 extends into the threaded interface of the pipe adapter and is screwed with each other.

[0031] In the above embodiment, the second connecting member 4 is assembled with the pipe by screwing, which is very convenient to disassemble and assemble.

[0032] As a preferred embodiment, the temperature change connecting member 2 is a hollow sleeve member, one end of the temperature change connecting member 2 is internally provided with an internal thread, the other end of the first connecting member 3 extends into the one end of the temperature change connecting member 2 and is screwed with each other, and the other end of the temperature change connecting member 2 is provided with an external thread for screwing with the platinum resistance adapter part.

[0033] In the above embodiment, the temperature change connecting member 2 is designed reasonably, one end of which can be screwed with the other end of the first connecting member 3, and the other end of which can be screwed with the carrier part of the platinum resistance adapter part (which belongs to the prior art design and will not be described here) with an internal thread, and the three are very convenient to disassemble and assemble.

[0034] As a preferred embodiment, as shown in Figure 2 The opposite sides of the middle section of the first connecting member 3 are provided with first planes (indicated as a in the figure) for clamping the same.

[0035] In the above embodiment, generally the first planes are exposed or partially exposed, and thus when the length adjuster 1 is operated to rotate to adjust the overall length of the sleeve device, the first planes on the two sides of the first connecting member 3 can be clamped by a wrench or the like, or when the first connecting member 3 and the temperature change connecting member 2 need to be disassembled, the first planes on the two sides can be clamped by a wrench or the like to rotate the first connecting member 3 or the temperature change connecting member 2, and the first planes are helpful for the operation of the first connecting member 3 and the adjustment of the overall sleeve device length.

[0036] As a preferred embodiment, as shown in Figure 3 The first locking nut 31 is screwed on the first connecting member 3.

[0037] In the above embodiment, after the length is adjusted, the first locking nut 31 is rotated to abut against one end of the length adjuster 1 to achieve locking, so that the length does not change under the influence of external force after adjustment.

[0038] In the embodiment, as shown in Figure 2 The opposite sides of the middle section of the second connecting piece 4 are provided with second planes (denoted by b in the figure) for clamping the second connecting piece 4. The second planes have the same function as the first planes on the first connecting piece 3, and the description is the same as above, and will not be repeated here.

[0039] As a preferred embodiment, as shown in Figure 3 The second locking nut 41 is screwed on the second connecting piece 4.

[0040] In the above embodiment, after the length is adjusted, the second locking nut 41 is rotated to abut against the other end of the length adjuster 1 to achieve locking, so that the length does not change under the influence of external force after adjustment.

[0041] As a preferred embodiment, as shown in Figure 2 The opposite sides of the length adjuster 1 are provided with third planes (denoted by c in the figure) for clamping the length adjuster 1.

[0042] In the above embodiment, the third planes are designed to facilitate clamping by a wrench or the like, and after clamping, the length adjuster 1 is rotated to adjust the length of the sleeve device, which is very convenient to operate.

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0045] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be the communication of two element interiors or the interaction of two elements, unless another definite limitation.For ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0046] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be the communication of two element interiors or the interaction of two elements, unless another definite limitation.For ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0047] In the description of the specification, the description of the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model.In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.In addition, in the case of not mutually contradictory, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples.

[0048] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as limiting the utility model, and the person skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model.

Claims

1. A platinum resistance sleeve device for a variable length temperature transmitter, characterized in that: The device includes a length adjuster (1), a temperature-sensitive connector (2), a first connector (3), and a second connector (4). The first connector (3) and the second connector (4) are respectively sealed at both ends of the length adjuster (1). The length adjuster (1) can adjust the first connector (3) and the second connector (4) to extend or retract relative to it. The length adjuster (1), the temperature-sensitive connector (2), the first connector (3), and the second connector (4) are provided with a cavity for assembling a platinum resistance thermometer. The first connector (3) is sealed to the temperature-sensitive connector (2). The second connector (4) is used to connect to a pipe. The temperature-sensitive connector (2) is used to assemble the platinum resistance thermometer.

2. The platinum resistance sleeve device for a variable length temperature transmitter according to claim 1, characterized in that: The length adjuster (1) is a long, straight, cylindrical component.

3. The platinum resistance sleeve device for a variable length temperature transmitter according to claim 2, characterized in that: The first connector (3) and the second connector (4) are both hollow studs. The inner walls of both ends of the length adjuster (1) are respectively provided with internal threads. One end of the first connector (3) extends into the interior of one end of the length adjuster (1) and screws into each other. One end of the second connector (4) extends into the interior of the other end of the length adjuster (1) and screws into each other. The threads of the first connector (3) and the second connector (4) are opposite in direction, and the internal threads of both ends of the length adjuster (1) are opposite in direction.

4. The platinum resistance sleeve device for a variable length temperature transmitter according to claim 3, characterized in that: The other end of the second connector (4) extends into the threaded interface of the pipe and screws together.

5. The platinum resistance sleeve device for a variable length temperature transmitter according to claim 3, characterized in that: The temperature-changing connector (2) is a hollow sleeve-shaped component. One end of the temperature-changing connector (2) is provided with an internal thread. The other end of the first connector (3) extends into the interior of one end of the temperature-changing connector (2) and they are screwed together. The other end of the temperature-changing connector (2) is provided with an external thread for threaded connection with the platinum resistance adapter part.

6. The platinum resistance sleeve device for a variable length temperature transmitter according to claim 3, characterized in that: The middle section of the first connector (3) has a first plane on each side for clamping it.

7. The platinum resistance sleeve device for a variable length temperature transmitter according to claim 3, characterized in that: The first connector (3) is screwed with a first locking nut (31).

8. The platinum resistance sleeve device for a variable length temperature transmitter according to claim 3, characterized in that: The middle section of the second connector (4) has a second plane on each side for clamping it.

9. A platinum resistance sleeve device for a variable length temperature transmitter according to claim 3, characterized in that: A second locking nut (41) is screwed onto the second connector (4).

10. A platinum resistance sleeve device for a variable length temperature transmitter according to any one of claims 3 to 9, characterized in that: The length adjuster (1) has a third plane on its opposite sides for clamping it.

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