CN113049133A

CN113049133A - Quick-release type thermal resistor applicable to heater

Info

Publication number: CN113049133A
Application number: CN202110148922.7A
Authority: CN
Inventors: 于霞
Original assignee: Anhui Lvneng Instrument Equipment Co ltd
Current assignee: Anhui Lvneng Instrument Equipment Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-06-29

Abstract

The invention discloses a quick-release thermal resistance suitable for heaters, comprising a thermal resistance body, a wire connection nut, a connection ring, a contact screw, a rubber ring, a holding cylinder and a sealing gasket, wherein the rubber ring is located in the holding cylinder Inside, the gasket is glued to the outside of the container, the connection ring is threadedly connected to the container, the contact screw is threaded to the connection ring, and the part of the contact screw protruding from the connection ring is sleeved with a wire connection nut, The main body of the thermal resistance is inserted inside the holding cylinder, and the end of the main body of the thermal resistance facing away from the round head is provided with a connecting head, the connecting head is provided with a twist handle, and the outer circle of the connecting head is provided with a circular array distribution. The end face of the connector facing the twist handle is provided with three contacts distributed in an annular array, and the contacts are connected with the internal circuit of the thermal resistance main body. The quick-release thermal resistance suitable for heaters, the operation of replacing the thermal resistance is relatively simple, and the connection does not require disassembly and installation of cables, and is suitable for widespread use.

Description

Quick-release type thermal resistor applicable to heater

Technical Field

The invention belongs to the technical field of thermal resistors, and particularly relates to a quick-release thermal resistor suitable for a heater.

Background

The thermal resistor is the most commonly used temperature detector in the middle and low temperature regions, the thermal resistor temperature measurement is based on the characteristic that the resistance value of a metal conductor increases along with the increase of the temperature to measure the temperature, and the thermal resistor has the main characteristics of high measurement precision and stable performance, wherein the measurement precision of the platinum thermal resistor is the highest, the platinum thermal resistor is not only widely applied to industrial temperature measurement, but also made into a standard reference instrument, the thermal resistor is mostly made of pure metal materials, and platinum and copper are mostly applied at present. Further, materials such as nickel, manganese, and rhodium have been used to manufacture the thermal resistor. The metal thermal resistor is made of a plurality of commonly used temperature sensing materials, and the most commonly used temperature sensing material is a platinum wire. The metal thermal resistance material for industrial measurement includes copper, nickel, iron, nickel, etc. in addition to platinum wire.

The pipe heater usually needs the thermal resistance to detect its inside liquid temperature, the thermal resistance of adoption inserts the inside liquid of contact of pipe heater mostly, then with pipe heater's casing threaded connection, at first need stop the liquid in the pipeline and pipe heater when changing the thermal resistance, change the thermal resistance afterwards, avoid the inside liquid of pipeline to gush out from the installing port of thermal resistance, and need to detach the connection cable on the thermal resistance who unloads after changing the thermal resistance, the cable that will unload afterwards is connected with new thermal resistance, it is comparatively loaded down with trivial details to change the operation of thermal resistance.

Disclosure of Invention

The present invention is directed to a quick-release thermal resistor suitable for a heater, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a quick-release thermal resistor suitable for a heater comprises a thermal resistor main body, a wire connecting nut, a connecting ring, a contact screw, a rubber ring, a containing cylinder and a sealing gasket;

the rubber ring is located and holds a section of thick bamboo inside, sealed pad bonds and holds a section of thick bamboo outside, the go-between with hold a section of thick bamboo threaded connection, contact screw and go-between threaded connection, the partial cover that the outstanding go-between of contact screw is equipped with wired coupling nut, the thermal resistance main part is inserted and is established and hold a section of thick bamboo inside.

Preferably, the thermal resistance main part is equipped with the connector to the one end of its button head dorsad, be equipped with on the connector and twist the handle, the head mouth that has annular array to distribute is opened to the excircle of connector, the connector is equipped with the contact that three annular array distributes on twisting the terminal surface of handle, the internal circuit of contact and thermal resistance main part is connected, the contact is twisted handle one side towards and is equipped with hemispherical notch.

Preferably, the connecting ring is internally provided with ring connecting threads, the outer edge of the connecting ring is provided with ring upper steps distributed in an annular array, the inner edge of the connecting ring is provided with three inner blocks distributed in an annular array, the inner blocks are internally provided with internal threaded holes, and the internal threaded holes are countersunk threaded holes.

Preferably, the screw head part of the contact screw is provided with a ball head with a spherical contour.

Preferably, it is hollow structure to hold a section of thick bamboo, it is equipped with the barrel plate to hold one side of a section of thick bamboo dorsad its button head, barrel plate one side is that a hexagonal portion opposite side is a section of thick bamboo outer connecting thread, the one end excircle that holds a section of thick bamboo dorsad its button head is opened there is barrel head connecting thread, open the section of thick bamboo that holds of barrel head connecting thread inboard and have the rubber ring chamber.

Preferably, the rubber ring is located in the rubber ring cavity, the end face of the rubber ring is fixedly bonded with the rubber ring cavity, the ring connecting thread of the connecting ring is meshed with the barrel end connecting thread of the containing barrel, the connector of the thermal resistor main body is located in the rubber ring cavity, and the ball head of the contact screw enters the contact of the thermal resistor main body.

As a further scheme of the invention, the inner block of the connecting ring passes through the head opening of the edge of the connecting head, and the connecting ring is made of engineering plastics.

The invention has the technical effects and advantages that: according to the quick-release type thermal resistor suitable for the heater, the containing cylinder extends into the pipeline heater to be in contact with liquid in the pipeline heater, the containing cylinder is in contact with the thermal resistor main body to achieve temperature measurement, the containing cylinder is filled in the thermal resistor mounting hole of the pipeline heater, the liquid in the pipeline heater can not flow out along the thermal resistor mounting hole, the liquid in the pipeline heater does not need to be stopped when the thermal resistor main body is replaced, the pipeline heater does not need to be stopped, and the operation of replacing the thermal resistor main body is simpler;

the cable connected with the thermal resistor main body is connected with the contact screw through the wire connecting nut, and the contact of the thermal resistor main body is connected with the connecting screw, so that the cable connected with the contact screw is conducted, the cable does not need to be detached and connected when the thermal resistor main body is detached and installed, and the difficulty in replacing the thermal resistor is further reduced;

inside inserting the thermal resistance main part when the thermal resistance main part is connected and holding a section of thick bamboo, follow the inner block and face to the first mouth with the connector in the inner block below of impressing, then rotatory thermal resistance main part will contact the contact and the contact screw combination of thermal resistance main part top, the elastic action through the rubber ring will contact the position locking of screw and contact, the installation is accomplished through pressing and rotatory mode to the thermal resistance main part, the mode easy operation of this kind of installation connects conveniently.

Drawings

FIG. 1 is a schematic view of the assembled state structure of the present invention;

FIG. 2 is a schematic diagram of the main body of the thermal resistor according to the present invention in a drawn state;

FIG. 3 is a schematic view of the upper side of the connection ring according to the present invention;

FIG. 4 is a view illustrating the structure of the lower side of the connection ring according to the present invention;

FIG. 5 is a schematic view of a contact screw structure according to the present invention;

FIG. 6 is a schematic diagram of the structure of the present invention in a separated state;

fig. 7 is a schematic structural view of the containing cylinder of the invention.

In the figure: 1. a thermal resistor body; 101. screwing the handle; 102. a connector; 103. a head and a mouth; 104. a contact; 2. a wire connection nut; 3. a connecting ring; 301. an upper step of the ring; 302. an inner block; 303. a threaded hole in the block; 304. a ring connecting thread; 4. a contact screw; 401. a ball head; 5. a rubber ring; 6. a containing cylinder; 601. a rubber ring cavity; 602. the cylinder end is connected with a thread; 603. a hexagonal section; 604. a barrel plate; 605. the outside of the cylinder is connected with a thread; 7. and a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a quick-release type thermal resistor suitable for a heater as shown in figures 1-7, which comprises a thermal resistor main body 1, a wire connecting nut 2, a connecting ring 3, a contact screw 4, a rubber ring 5, a containing cylinder 6 and a sealing gasket 7;

the rubber ring 5 is located and holds inside a section of thick bamboo 6, sealed 7 bonds and holds 6 outsides of a section of thick bamboo, go-between 3 with hold 6 threaded connection of a section of thick bamboo, contact screw 4 and go-between 3 threaded connection, the part cover that contact screw 4 stands out go-between 3 is equipped with wired coupling nut 2, thermal resistance main part 1 is inserted and is established and hold inside a section of thick bamboo 6.

Specifically, thermal resistor main part 1 is equipped with connector 102 to the one end of its button head dorsad, it twists handle 101 to be equipped with on the connector 102, open the head mouth 103 that has the annular array to distribute in the excircle of connector 102, connector 102 is equipped with the contact 104 that three annular array distributes on twisting the terminal surface of handle 101, the internal circuit of contact 104 and thermal resistor main part 1 is connected, contact 104 is equipped with hemispherical notch towards twisting handle 101 one side, and connector 102 cooperation inner block 302 accomplishes the joint, and inner block 302 lower extreme and connector 102's upper surface contact, head mouth 103 are used for supplying inner block 302 to pass, twist handle 101 and are favorable to the staff to pinch the application of force, and the semicircular notch of contact 104 corresponds with the bulb 401 of contact screw 4.

Specifically, ring connecting threads 304 are formed inside the connecting ring 3, an upper ring step 301 distributed in an annular array is formed in the outer edge of the connecting ring 3, three inner blocks 302 distributed in an annular array are arranged on the inner edge of the connecting ring 3, inner threaded holes 303 are formed inside the inner blocks 302, the inner threaded holes 303 are countersunk, and the connecting ring 3 is meshed with the containing barrel 6 through the ring connecting threads 304 and barrel end connecting threads 602 and is connected with the containing barrel.

Specifically, the screw head part of the contact screw 4 is provided with a ball head 401 with a spherical outline, the contact screw 4 is made of copper, and the surface of the contact screw 4 is hardened.

Specifically, the containing cylinder 6 is of a hollow structure, a cylinder plate 604 is arranged on one side of the containing cylinder 6, which is back to the round head, one side of the cylinder plate 604 is a hexagonal part 603, the other side is a cylinder external connection thread 605, the cylinder end connection thread 602 is arranged on the external circle of one end of the containing cylinder 6 back to the round head, barrel end connecting thread 602 inboard holds and has seted up rubber ring cavity 601 in the section of thick bamboo 6, hold a work portion that a section of thick bamboo 6 is used for holding thermal resistance main part 1, the clearance that holds a section of thick bamboo 6 and thermal resistance main part 1 is filled in order to increase the heat conductivity through heat conduction silicone grease, hold an integral type structure that a section of thick bamboo 6 was made for the turning, the material that holds a section of thick bamboo 6 is brass, a section of thick bamboo 6 that holds of brass material has good hardness and heat conductivility, the specification of hexagonal portion 603 corresponds current opening hexagonal spanner, the surface that holds a section of thick bamboo 6 and stretch into the inside part of pipe heater is the polishing treatment, this design is favorable to reducing the resistance that holds a section of thick bamboo 6.

Specifically, the rubber ring 5 is located inside the rubber ring cavity 601, the end face of the rubber ring 5 is fixedly bonded with the rubber ring cavity 601, the ring connecting thread 304 of the connecting ring 3 is engaged with the cylinder end connecting thread 602 of the containing cylinder 6, the connector 102 of the thermal resistor main body 1 is located in the rubber ring cavity 601, the ball head 401 of the contact screw 4 enters the contact 104 of the thermal resistor main body 1, the rubber ring 5 is made of flexible rubber, the rubber ring 5 has higher compression degree due to a hole in the rubber ring 5, the rubber ring 5 pushes the containing barrel 6 to the connecting ring 3, the contact screw 4 is more stably in contact connection with the contact 104, the position of the upper ring step 301 on the connecting ring 3 corresponds to the position of the bulge of the inner edge of the ER wrench, the connecting ring 3 can be installed and detached through the ER wrench, and if the service life is considered, the rubber ring 5 can be replaced by a spring or a metal gasket.

Specifically, the inner block 302 of the connection ring 3 passes through the head opening 103 at the edge of the connection head 102, the connection ring 3 is made of engineering plastics, and the connection ring 3 can also be made of other insulating materials.

The installation steps of the quick-release type thermal resistor suitable for the heater are as follows: coating medium-strength thread glue on the external connection thread 605 of the cylinder; inserting the holding cylinder 6 into the mounting hole of the pipeline heater; the wrench is clamped outside the hexagonal part 603 to rotate the containing barrel 6, so that the barrel plate 604 presses the sealing gasket 7, and the sealing of the mounting hole of the pipeline heater is completed through the pressed sealing gasket 7; screwing the contact screw 4 coated with the medium-strength thread glue into the internal threaded hole 303 in the connecting ring 3; the connecting ring 3 and the containing cylinder 6 are screwed tightly; the rubber ring 5 is bonded inside the rubber ring cavity 601 through glue; inserting the thermal resistor body 1 into the containing cylinder 6, aligning the position of the head opening 103 with the inner block 302 during insertion, and rotating the thermal resistor body 1 after the connecting head 102 enters the lower part of the inner block 302 to enable the position of the contact 104 to correspond to the position of the contact screw 4 in the threaded hole 303 in the block; connecting the cable with a contact screw 4 protruding out of the connection ring 3 through a wire connection nut 2;

when thermal resistance main part 1 broke down, twisted handle 101 with pinching with the hand and pushed down thermal resistance main part 1, rotatory thermal resistance main part 1 afterwards corresponds the position of head mouth 103 and the position of interior piece 302, takes out thermal resistance main part 1 afterwards, can accomplish the discharging of thermal resistance main part 1, then inserts new thermal resistance main part 1 and holds the inside change that accomplishes thermal resistance main part 1 of a section of thick bamboo 6.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A quick-release thermal resistance suitable for heaters, comprising a thermal resistance body (1), a wire connection nut (2), a connection ring (3), a contact screw (4), a rubber ring (5), a The barrel (6) and the gasket (7) are characterized by:

The rubber ring (5) is located inside the container (6), the gasket (7) is adhered to the outside of the container (6), and the connecting ring (3) is threadedly connected to the container (6) , the contact screw (4) is threadedly connected with the connection ring (3), the part of the contact screw (4) protruding from the connection ring (3) is sleeved with a wire connection nut (2), and the thermal resistance body (1) is inserted It is located inside the container (6).

2. A quick-release thermal resistance suitable for a heater according to claim 1, characterized in that: the end of the thermal resistance main body (1) facing away from its round head is provided with a connector (102), so The connecting head (102) is provided with a twist handle (101), the outer circumference of the connecting head (102) is provided with head openings (103) distributed in an annular array, and the connecting head (102) faces the twist handle (101) There are three contacts (104) distributed in an annular array on the end surface of the thermal resistance body (1), the contacts (104) are connected to the internal circuit of the thermal resistance body (1), and the contacts (104) face the side of the twist handle (101) Features a hemispherical notch.

3. A quick-release thermal resistance suitable for a heater according to claim 1, characterized in that: a ring connecting thread (304) is opened inside the connecting ring (3), and the connecting ring (3) The outer edge of the ring is provided with a ring upper step (301) distributed in an annular array, the inner edge of the connecting ring (3) is provided with three inner blocks (302) distributed in an annular array, and the inner block (302) is provided with a block inside Internally threaded holes (303), the block internal threaded holes (303) are countersunk threaded holes.

4 . The quick-release thermal resistance suitable for heaters according to claim 1 , wherein the screw head portion of the contact screw ( 4 ) is provided with a ball head ( 401 ) with a spherical profile. 5 .

5. A quick-release thermal resistance suitable for a heater according to claim 1, characterized in that: the container (6) is a hollow structure, and the container (6) faces away from its circle One side of the head is provided with a cylinder plate (604), one side of the cylinder plate (604) is a hexagonal portion (603), and the other side is a cylinder external connection thread (605), and the holding cylinder (6) faces away from it. One end of the round head is provided with a cylinder end connecting thread (602) on the outer circumference, and a rubber ring cavity (601) is opened in the holding cylinder (6) inside the cylinder end connecting thread (602).

6. A quick-release thermal resistance suitable for a heater according to claim 5, characterized in that: the rubber ring (5) is located inside the rubber ring cavity (601), and the rubber ring (5) is The end face is bonded and fixed with the rubber ring cavity (601), the ring connecting thread (304) of the connecting ring (3) and the cylinder end connecting thread (602) of the holding cylinder (6) are engaged with each other, and the thermal resistance main body ( The connecting head (102) of 1) is located inside the rubber ring cavity (601), and the ball head (401) of the contact screw (4) enters the inside of the contact (104) of the thermal resistance body (1).

7 . The quick-release thermal resistance suitable for heaters according to claim 3 , wherein the inner block ( 302 ) of the connecting ring ( 3 ) passes through the head opening of the edge of the connecting head ( 102 ). 8 . (103), the connecting ring (3) is made of engineering plastics.