CN204188290U - Position limitation protection thermopair - Google Patents
Position limitation protection thermopair Download PDFInfo
- Publication number
- CN204188290U CN204188290U CN201420686722.2U CN201420686722U CN204188290U CN 204188290 U CN204188290 U CN 204188290U CN 201420686722 U CN201420686722 U CN 201420686722U CN 204188290 U CN204188290 U CN 204188290U
- Authority
- CN
- China
- Prior art keywords
- metal shell
- protective metal
- sheath
- wire
- lead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002184 metal Substances 0.000 claims abstract description 32
- 230000001681 protective effect Effects 0.000 claims abstract description 32
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a kind of position limitation protection thermopair, it comprise axial hollow sheath, be arranged in described sheath front portion protection tube, penetrate described sheath rear portion and access the lead-in wire of described protection tube inside; Be provided with protective metal shell between described sheath and described lead-in wire, described protection tube side has screw, and described screwhole position is provided with a trip bolt, and described trip bolt tip is held in described protective metal shell surface.The utility model avoids by protective metal shell problem and the lead-in wire axial float problem that trip bolt damages lead-in wire, improves the reliability of thermopair.
Description
Technical field
The utility model relates to Thermocouples Technology field, and particularly a kind of have spacing and thermopair that is operator guards.
Background technology
Thermopair is a kind of temperature-sensing element, and it converts thermopower signal to temperature signal, is converted to the temperature of measured medium by electric meter.
Thermopair generally has the protection tube stretched in measured medium, be positioned at the thermometric of protection tube lead-in wire, be sheathed on the gib screw of sheath outside protection tube and fixing protection tube and sheath relative position is formed.General protection tube is hard brittle material, protection tube may be made cracked, so that thermopair is scrapped when gib screw is tightened.
Therefore, be necessary to provide a kind of new thermocouple structure to solve above problem.
Summary of the invention
Fundamental purpose of the present utility model is that providing a kind of has spacing and thermopair that is operator guards.
The utility model is achieved through the following technical solutions above-mentioned purpose: a kind of position limitation protection thermopair, it comprise axial hollow sheath, be arranged in described sheath front portion protection tube, penetrate described sheath rear portion and access the lead-in wire of described protection tube inside; Be provided with protective metal shell between described sheath and described lead-in wire, described protection tube side has screw, and described screwhole position is provided with a trip bolt, and described trip bolt tip is held in described protective metal shell surface.
Preferably, described protective metal shell rear section is U-shaped, is provided with the U-shaped chamber of moving and accommodating described lead-in wire for described protective metal shell in described sheath.
In some embodiments, described protective metal shell outside surface is provided with recessed.
Preferably, the female has more than 2 and distributes along the axial spacing of described protective metal shell.
Compared with prior art, the beneficial effect of the utility model position limitation protection thermopair is:
1, trip bolt is not directly held on lead-in wire, but is clamped by lead-in wire by protective metal shell, becomes face contact from point cantact, prevents trip bolt by the problem squeezed off that goes between;
2, protective metal shell is U-shaped and can be movable in U-shaped chamber, and when trip bolt is tightened, lead-in wire can be clamped by protective metal shell, and self is indeformable;
3, recessedly can snap in when trip bolt is tightened that it is most advanced and sophisticated, make protective metal shell axial float not occur; And when the length stretched in protection tube that goes between needs to regulate, each recessed fixed position of trip bolt of can giving on protective metal shell provides reference.
Accompanying drawing explanation
Fig. 1 is the partial half view of the utility model position limitation protection thermopair;
Fig. 2 is the cut-open view at the A-A place in Fig. 1;
Fig. 3 is the partial enlarged drawing at B place in Fig. 2.
Numeral in figure:
1, sheath, 11, screw, 12, U-shaped chamber, 2, protection tube, 3, lead-in wire, 4, protective metal shell, 41, recessed, 5, trip bolt.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1 to Figure 3; the utility model is a kind of position limitation protection thermopair; it comprise axial hollow sheath 1, be arranged in sheath 1 front portion protection tube 2, penetrate sheath 1 rear portion and access the lead-in wire 3 of protection tube 2 inside, the protective metal shell 4 between lead-in wire 3 and sheath 1, penetrate sheath 1 screw 11 and be held in the trip bolt 5 on protective metal shell 4.Thus, trip bolt 5, by protective metal shell 4 transmission of pressure, makes point cantact become face contact, avoids the problem that lead-in wire 3 squeezes off by trip bolt 5.
With reference to Fig. 2, protective metal shell 4 rear section is U-shaped, is provided with the U-shaped chamber 41 of moving and accommodating lead-in wire 3 for protective metal shell 4 in sheath 1.Thus, protective metal shell 4 one aspect can move axially along sheath 1, can move on the other hand in sheath 1, and when trip bolt 5 is tightened, lead-in wire 3 also can be clamped mobile in sheath 1 by protective metal shell 4 together with sheath 1, and such protective metal shell 4 is indeformable when regulating.
With reference to Fig. 3, protective metal shell 4 outside surface is provided with 4 along its axial spacing distribution recessed 41.Thus, trip bolt 5 can block one recessed 41 after tightening, and makes protective metal shell 4 can not axial float, and when lead-in wire 3 length stretched in protection tube 2 needs to regulate, each recessed 41 on protective metal shell 4 provide reference can to the fixed position of trip bolt 5.
Above-described is only embodiments more of the present utility model.For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (4)
1. a position limitation protection thermopair; it comprise hollow sheath, be arranged in described sheath front portion protection tube, penetrate described sheath rear portion and access the lead-in wire of described protection tube inside; it is characterized in that: between described sheath and described lead-in wire, be provided with protective metal shell; described protection tube side has screw; described screwhole position is provided with a trip bolt, and described trip bolt tip is held in described protective metal shell surface.
2. position limitation protection thermopair according to claim 1, is characterized in that: described protective metal shell rear section is U-shaped, is provided with the U-shaped chamber of moving and accommodating described lead-in wire for described protective metal shell in described sheath.
3. position limitation protection thermopair according to claim 2, is characterized in that: described protective metal shell outside surface is provided with recessed.
4. position limitation protection thermopair according to claim 3, is characterized in that: the female has more than 2 and distributes along the axial spacing of described protective metal shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420686722.2U CN204188290U (en) | 2014-11-17 | 2014-11-17 | Position limitation protection thermopair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420686722.2U CN204188290U (en) | 2014-11-17 | 2014-11-17 | Position limitation protection thermopair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204188290U true CN204188290U (en) | 2015-03-04 |
Family
ID=52620274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420686722.2U Expired - Fee Related CN204188290U (en) | 2014-11-17 | 2014-11-17 | Position limitation protection thermopair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204188290U (en) |
-
2014
- 2014-11-17 CN CN201420686722.2U patent/CN204188290U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 |