CN218156559U - Bimetal thermometer with 90-degree bent pipe - Google Patents

Abstract

The utility model discloses a 90 return bend bimetal thermometer, including temperature-sensing element, protection tube subassembly and pivot, the pivot with temperature-sensing element's free end fixed connection, the protection tube subassembly forms 90 curved structure, the pivot be formed with the pivot curved structure that 90 curved structure corresponds, the cover is equipped with the corner subassembly on the pivot curved structure, through the corner subassembly prevents the pivot with the inner wall contact of protection tube subassembly. The beneficial effects of the utility model are that, form 90 curved structure on the protection tube subassembly to the pivot that will install in the protection tube subassembly also forms pivot curved structure along with 90 curved structure, with the temperature detection that adaptation temperature measurement installation environment is the special occasion of 90 bent angles. And the rotating shaft bending structure of the rotating shaft is sleeved with the corner assembly, so that the contact between the rotating shaft and the inner wall of the protection pipe assembly is avoided, and the temperature measurement precision of bimetal is ensured.

Description

Bimetal thermometer with 90-degree bent pipe

Technical Field

The utility model belongs to the technology of instrument, especially a 90 return bend bimetal thermometer.

Background

The bimetal thermometer is a temperature sensing device made of a bimetal wound into a spiral shape and arranged in a protective sleeve, wherein one end of the bimetal is fixed and called a fixed end, and the other end of the bimetal is connected to a rotating shaft and called a free end. And a pointer is arranged on the free end spool. When the temperature changes, the free end of the temperature sensing device rotates along with the temperature change, so that the pointer on the thin shaft is driven to change the angle, and the corresponding temperature is indicated on the dial.

With the rapid development of science and technology, the bimetallic thermometer is gradually perfected. The existing bimetallic thermometers comprise four types of structures, namely an axial type structure, a radial type structure, a universal type structure and a 135-degree bent type structure, and the protection tube structures of the four thermometers all adopt straight tubes. The temperature at the 90 ° corner of the installation environment cannot be detected.

Disclosure of Invention

The utility model aims at providing a 90 return bend bimetal thermometer, detectable installation environment is the temperature of 90 bent angles departments.

In order to achieve the purpose, the utility model adopts the following technical scheme.

The utility model provides a 90 return bend bimetal thermometer, includes temperature sensing element, protection tube subassembly and pivot, the pivot with the free end fixed connection of temperature sensing element, the protection tube subassembly forms 90 curved structure, the pivot be formed with 90 curved structure's the corresponding pivot curved structure of curved structure, the last cover of pivot curved structure is equipped with the corner subassembly, through the corner subassembly prevents the pivot with the inner wall contact of protection tube subassembly.

By adopting the technical scheme, the utility model forms a 90-degree bending structure on the protection tube component, and forms a rotating shaft bending structure along with the 90-degree bending structure on the rotating shaft arranged in the protection tube component, so as to adapt to the temperature detection of special occasions with 90-degree bending angles in the temperature measurement installation environment; and the rotating shaft bending structure of the rotating shaft is sleeved with the corner assembly, so that the rotating shaft is prevented from contacting with the inner wall of the protective tube assembly, the rotating shaft can rotate along with the temperature sensing element when the bimetal temperature sensing element deforms, and the temperature measuring precision of bimetal is ensured.

Preferably, the protection tube assembly includes a bent protection tube and a straight protection tube, one end of the bent protection tube forms a 90 ° bent structure, and an end of the 90 ° bent structure is butted with one end of the straight protection tube.

Like this with the one end formation 90 curved structure of curved protection pipe, another protection pipe adopts the straight tube, is convenient for install pivot and corner subassembly earlier to two protection pipes in, again with straight tube and return bend butt joint welding, reduce the assembly degree of difficulty.

Preferably, the corner assembly comprises a copper shaft seat and a first corner spring, and the first corner spring surrounds the rotating shaft bending structure.

The 90-degree bending structure touch of the rotating shaft bending structure and the bent protection tube is prevented through the corner spring, the rotating shaft is influenced to normally rotate, and the temperature measurement accuracy is guaranteed.

Preferably, lantern rings are tightly matched with two ends of the first corner spring, and through holes for the rotating shaft to pass through are formed in the axle center of each lantern ring.

Through the tight fit installation lantern ring in first corner spring's both ends, it is fixed with first corner spring to make the lantern ring guarantee the pivot, avoids pivot and the inboard touching of corner spring, influences the pivot and normally rotates, guarantees the temperature measurement accuracy.

Preferably, the number of the copper shaft seats is two, the two copper shaft seats are respectively close to two ends of the first corner spring and are sleeved on the rotating shaft, the whole copper shaft seat is cylindrical, and the outer side of the copper shaft seat is tightly matched with the inner wall of the protection tube assembly.

Through setting up the copper axle bed to closely cooperate the outside of copper axle bed and the inner wall of protection tube subassembly, support the pivot in the axle center of protection tube, avoid pivot and protection tube inner wall to touch, influence the pivot and normally rotate, guarantee the temperature measurement accuracy.

Preferably, a circular truncated cone structure is formed on the periphery of the copper shaft seat, a stepped hole is formed in the axis of the copper shaft seat, and the rotating shaft is in clearance fit with the stepped hole.

The periphery of the copper shaft seat forms a circular truncated cone structure, so that the difficulty of mounting the copper shaft seat in the protective pipe is reduced, a stepped hole is formed in the axis of the copper shaft seat, and the difficulty of penetrating the copper shaft seat by the rotating shaft is reduced.

Preferably, one end of the rotating shaft, which is far away from the temperature sensing element, is connected with a second corner spring, the other end of the second corner spring is connected with a pointer shaft, and a pointer is fixedly connected to the pointer shaft.

Through with pivot and second corner spring, the pointer axle is connected to the other end of second corner spring, the epaxial fixedly connected with pointer of pointer, is convenient for transmit the moment of torsion of pivot when bimetal warp to the pointer axle, and the rethread pointer axle drives the pointer rotation.

Preferably, the middle part of the pointer shaft is rotatably arranged on the shaft seat in a penetrating manner, the end part of the shaft seat is fixedly connected with a dial plate, and the pointer shaft can rotatably penetrate through the dial plate and is concentric with the dial plate.

Support power is provided for pointer shaft and dial plate through setting up the axle bed to with dial plate and the concentric installation of pointer shaft, guarantee temperature display's accuracy.

Preferably, the pointer shaft, the shaft seat, the dial plate and the second corner spring are all positioned in the watch case.

By arranging the watchcase, parts arranged in the watchcase are protected.

The utility model has the advantages that the 90-degree bending structure is formed on the protection tube component, and the rotating shaft arranged in the protection tube component also forms the rotating shaft bending structure along with the 90-degree bending structure, so as to adapt to the temperature detection of the special occasion with the 90-degree bending angle in the temperature measurement installation environment; and the rotating shaft bending structure of the rotating shaft is sleeved with the corner assembly, so that the rotating shaft is prevented from contacting the inner wall of the protective pipe assembly, the rotating shaft can rotate along with the temperature sensing element when the bimetal temperature sensing element deforms, and the temperature measuring precision of bimetal is ensured. Still form the stairstepping through the periphery with the copper axle bed, be convenient for reduce the degree of difficulty that the copper axle bed was installed in the protective tube to be formed with the shoulder hole with the axle center of copper axle bed, be convenient for reduce the degree of difficulty that the copper axle bed was worn to establish by the pivot.

Drawings

FIG. 1 is an internal structural view of the present invention;

fig. 2 is a right side view of the present invention;

fig. 3 is an installation schematic diagram of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, which are not intended to limit the scope of the embodiments described herein.

The utility model discloses a description reference numeral includes: the watch comprises a watch case 1, a pointer 12, a pointer shaft 11, a second corner spring 13, a copper shaft seat 2, a first corner spring 3, a lantern ring 31, a bent protection tube 4, a 90-degree bent structure 41, a dial 5, a straight protection tube 6, a temperature sensing element 7 and a rotating shaft 8.

Referring to fig. 1 and 3, the bimetal thermometer with a 90-degree elbow comprises a temperature sensing element 7, a protection tube assembly and a rotating shaft 8, wherein the rotating shaft 8 is fixedly connected with a free end of the temperature sensing element 7, the protection tube assembly forms a 90-degree bending structure 41, the rotating shaft 8 is provided with a rotating shaft bending structure corresponding to the 90-degree bending structure 41, and a corner assembly is sleeved on the rotating shaft bending structure and prevents the rotating shaft 8 from contacting with the inner wall of the protection tube assembly.

Wherein, the protection tube subassembly includes curved protection tube 4 and straight protection tube 6, the one end of curved protection tube 4 forms 90 crooked structure 41, the tip of 90 crooked structure 41 with the butt joint of one end of straight protection tube 6.

Referring to fig. 1, the corner assembly includes a copper shaft seat 2 and a first corner spring 3, wherein the first corner spring 3 surrounds the rotating shaft bending structure.

Referring to fig. 1, two ends of the first corner spring 3 are tightly connected with a collar 31, and a through hole for the rotating shaft 8 to pass through is formed in the axis of the collar 31.

Referring to fig. 1, the two copper shaft seats 2 are respectively close to two ends of the first corner spring 3 and are all sleeved on the rotating shaft 8, the whole copper shaft seat 2 is cylindrical, and the outer side of the copper shaft seat 2 is tightly matched with the inner wall of the protection tube assembly.

Referring to fig. 1, a circular truncated cone structure is formed on the periphery of the copper shaft seat 2, a stepped hole is formed on the axis of the copper shaft seat 2, and the rotating shaft 8 is in clearance fit with the stepped hole.

Referring to fig. 2, one end of the rotating shaft 8, which is far away from the temperature sensing element 7, is connected with a second corner spring 13, the other end of the second corner spring 13 is connected with a pointer shaft 11, and a pointer 12 is fixedly connected to the pointer shaft 11.

Referring to fig. 2, the middle part of the pointer shaft 11 is rotatably inserted into the shaft seat, the end part of the shaft seat is fixedly connected with a dial 5, and the pointer shaft 11 rotatably penetrates through the dial 5 and is concentric with the dial 5. The pointer shaft 11, the shaft seat, the dial 5 and the second corner spring 13 are all positioned in the watch case 1.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. The utility model provides a 90 return bend bimetal thermometer, its characterized in that, includes temperature sensing element (7), protection tube subassembly and pivot (8), pivot (8) with the free end fixed connection of temperature sensing element (7), the protection tube subassembly forms 90 curved structure (41), pivot (8) be formed with the pivot curved structure that 90 curved structure (41) correspond, the cover is equipped with the corner subassembly on the pivot curved structure, through the corner subassembly prevents pivot (8) with the inner wall contact of protection tube subassembly.

2. The 90 ° elbow bimetallic thermometer according to claim 1, characterized in that the protection tube assembly comprises a curved protection tube (4) and a straight protection tube (6), one end of the curved protection tube (4) forming a 90 ° bend (41), the end of the 90 ° bend (41) abutting one end of the straight protection tube (6).

3. The 90 ° elbow bimetallic thermometer of claim 1, wherein said corner assembly comprises a copper shaft seat (2) and a first corner spring (3), said first corner spring (3) being wrapped around said shaft flexure (41).

4. The 90-degree elbow bimetal thermometer according to claim 3, characterized in that both ends of the first corner spring (3) are connected with a lantern ring (31) in a tight fit manner, and a through hole for the rotating shaft (8) to pass through is formed in the axle center of the lantern ring (31).

5. The 90 ° double-metal thermometer according to claim 3, characterized in that the copper shaft seat (2) is provided with two ends respectively close to the two ends of the first angle-of-rotation spring (3) and sleeved on the rotating shaft (8), the copper shaft seat (2) is cylindrical as a whole, and the outer side of the copper shaft seat (2) is tightly matched with the inner wall of the protection tube component.

6. The 90-degree elbow bimetal thermometer according to claim 3, wherein the periphery of the copper shaft seat (2) is formed with a truncated cone structure, the shaft center of the copper shaft seat (2) is formed with a stepped hole, and the rotating shaft (8) is in clearance fit with the stepped hole.

7. The 90-degree elbow bimetal thermometer according to claim 1, wherein one end of the rotating shaft (8) far away from the temperature sensing element (7) is connected with a second corner spring (13), the other end of the second corner spring (13) is connected with a pointer shaft (11), and a pointer (12) is fixedly connected on the pointer shaft (11).

8. The 90-degree elbow bimetal thermometer according to claim 7, characterized in that the middle part of the pointer shaft (11) is rotatably arranged through a shaft seat, the end part of the shaft seat is fixedly connected with a dial (5), and the pointer shaft (11) can rotatably penetrate through the dial (5) and is concentric with the dial (5).

9. The 90 ° elbow bimetallic thermometer according to claim 8, characterized in that the pointer shaft (11), the shaft seat, the dial (5) and the second corner spring (13) are all located inside the watch case (1).

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