CN110940434A - Accurate positioning device for thermocouple - Google Patents

Abstract

The invention discloses a thermocouple accurate positioning device which comprises a thermocouple body, wherein a plug bush is sleeved on the thermocouple body, a sleeve block is sleeved at the left end of the plug bush, a fixed block is fixedly welded at the upper end of the sleeve block, a lead screw is installed inside the fixed block through a bearing, a knob is fixedly sleeved at the central position of the lead screw, the upper end of the knob is positioned in a notch, the notch is arranged at the central position of the upper end of the fixed block, two ends of the lead screw are symmetrically sleeved with a screw nut, the screw nut is fixedly installed at the opening of a sleeve rod, the sleeve rods are symmetrically sleeved at two ends of the lead screw, and the outer ends of two groups of the sleeve rods respectively penetrate through the front end and the rear end of the. According to the invention, the plug bush and the sleeve block are arranged, and the plug bush and the sleeve block can be connected in a threaded rotating mode, so that the plug bush can clamp the thermocouple body, the thermocouple body is fixed, and the installation and the disassembly are convenient.

Description

Accurate positioning device for thermocouple

Technical Field

The invention relates to the technical field of thermocouple accurate positioning devices, in particular to a thermocouple accurate positioning device.

Background

The thermocouple is a temperature sensing element and an energy converter, which can convert heat energy into electric energy, and when the thermocouple is installed, a positioning installation device is needed, such as patent numbers: CN 207585790U, discloses a fixing device capable of precisely adjusting the height of a thermocouple. The device comprises a positioner and a protective sleeve, wherein the protective sleeve is provided with standard scales; the locator includes cavity screwed pipe and support cutting ferrule, and protective case passes the cavity screwed pipe, but the height that the thermocouple stretched into furnace chamber or crucible can the accurate regulation of this patent, and rational in infrastructure, convenient to use can be fast accurate the required any height of regulation, have effectively solved the difficult problem of thermocouple height accurate adjustment.

However, the fixing structure of the device is simple, and the device can only be applied to the thermocouple arranged outside the pipeline, but not to the thermocouple arranged inside the pipeline, and therefore, a thermocouple accurate positioning device is provided to solve the problems.

Disclosure of Invention

The invention aims to provide a thermocouple accurate positioning device, which solves the problems that the device proposed in the background art has simple fixing structure and can only be suitable for a thermocouple arranged outside a pipeline, but not for a thermocouple arranged inside the pipeline.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a thermocouple accurate positioning device, includes the thermocouple body, the plug bush has been cup jointed on the thermocouple body, and the left end of plug bush has cup jointed the cover piece, the fixed welding in upper end of cover piece has the fixed block, the lead screw is installed through the bearing in the inside of fixed block, and the central point of lead screw puts the fixed knob that has cup jointed, the upper end of knob is in the breach, and the breach is seted up and is put at the upper end central point of fixed block, the screw has been cup jointed to the both ends symmetry of lead screw, and screw fixed mounting is at the opening part of loop bar, the loop bar symmetry cup joints at the both ends of lead screw, and is two sets of the both ends around the fixed block are passed respectively to the outer end of loop bar, the fixed welding in outer end of loop bar.

Preferably, the outside of plug bush is provided with the external screw thread, the inboard of cover block is provided with the external screw thread assorted internal thread with the plug bush, the plug bush sets up to the cone, the inside of cover block set up with the outside size assorted circular cone groove of plug bush, the plug bush equidistance encircles and has seted up the V-arrangement opening.

Preferably, the two end surfaces of the screw rod are symmetrically provided with threads matched with the screw nut, and the sleeve rod is internally provided with a sliding groove matched with the outer side size of the end head of the screw rod.

Preferably, one end of the loop bar inserted into the fixing block is square, and a sliding groove matched with the square end of the loop bar in size is formed in the fixing block.

Preferably, a circular threaded hole is formed in the center of the supporting block, the circular threaded hole is matched with the threaded head, anti-skid threads are arranged on the surfaces of the front end and the rear end of the supporting block, the surface of the supporting block, which is close to one side of the knob, is a plane, and the surface of the supporting block, which is far away from one side of the knob, is arc-shaped.

Compared with the prior art, the invention has the beneficial effects that: according to the thermocouple accurate positioning device, the plug bush and the sleeve block are arranged, and the plug bush and the sleeve block can be connected in a threaded rotating mode, so that the plug bush can clamp the thermocouple body, the thermocouple body is fixed, and the thermocouple accurate positioning device is convenient to install and disassemble;

through setting up two sets of supporting shoes, it rotates the knob and drives the lead screw rotation, make the lead screw can cooperate with the screw, make the screw drive loop bar subtend along the lead screw and stretch out and draw back both ends around in the fixed block, thereby change the interval between two sets of supporting shoes, through putting into the pipeline with the device, and rotate the knob, make two sets of loop bars with the inner wall that two sets of supporting shoe subtend propped the pipeline, thereby device fixed mounting is in the pipeline, and this structure easy operation, can be applicable to the space of equidimension not.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic sectional elevation view of the structure of the present invention;

FIG. 2 is a schematic side sectional view of the structure of the present invention;

fig. 3 is a schematic structural view of the insert sleeve of the present invention.

In the figure: 1. a thermocouple body; 2. inserting a sleeve; 3. sleeving blocks; 4. a fixed block; 5. a screw rod; 6. a knob; 7. a notch; 8. a nut; 9. a loop bar; 10. a screw head; 11. and (7) a supporting block.

The specific implementation mode is as follows:

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.

Referring to fig. 1-3, three embodiments of the present invention are provided:

the embodiment I, a thermocouple accurate positioning device, including thermocouple body 1, the plug bush 2 has been cup jointed on the thermocouple body 1, and the left end of plug bush 2 has cup jointed the cover block 3, the fixed welding in upper end of cover block 3 has fixed block 4, lead screw 5 is installed through the bearing in the inside of fixed block 4, and the fixed knob 6 that has cup jointed in central point of lead screw 5, the upper end of knob 6 is in breach 7, and breach 7 sets up the upper end central point at fixed block 4, screw 8 has been cup jointed to the both ends symmetry of lead screw 5, and screw 8 fixed mounting is at the opening part of loop bar 9, loop bar 9 symmetry cup joints the both ends at lead screw 5, the outer end of two sets of loop bars 9 passes both ends around fixed block 4 respectively, the fixed welding in outer end of loop bar 9 has nipple 10, and the nipple 11 has been cup jointed on nipple 10.

Embodiment two, the outside of plug bush 2 is provided with the external screw thread, the inboard of cover block 3 is provided with the external screw thread assorted internal thread with plug bush 2, plug bush 2 sets up to the cone, the outside size assorted circular cone groove with plug bush 2 is seted up to the inside of cover block 3, the V-arrangement opening has been seted up in 2 equidistance encircles of plug bush, this structure makes plug bush 2 can insert in the cover block 3 through the screw rotation, and along with the conical head inserts the degree of depth in the cover block 3 deepening more, the conical head of plug bush 2 can shrink gradually, with the inboard diameter that changes plug bush 2, thereby it is fixed to carry out the centre gripping to thermocouple body 1 through 2 contractions of plug bush, make whole location fixing device can install on thermocouple body 1.

In the third embodiment, the two end surfaces of the screw rod 5 are symmetrically provided with threads matched with the nuts 8, the sleeve rod 9 is internally provided with a sliding groove matched with the size of the outer side of the end of the screw rod 5, one end of the sleeve rod 9 inserted into the fixed block 4 is square, the fixed block 4 is internally provided with a sliding groove matched with the size of the square end of the sleeve rod 9, the structure enables the two groups of nuts 8 sleeved on the screw rod 5 to move oppositely in a matching manner with the threads on the screw rod 5 when the screw rod 5 rotates, and the sleeve rod 9 cannot rotate in the fixed block 4 because the end of the sleeve rod 9 inserted into the fixed block 4 is square, so that the nuts 8 cannot rotate on the screw rod 5, thus the screw rod 5 cannot be driven to rotate, but the nuts 8 can drive the sleeve rod 9 to extend and retract at the end of the fixed block 4 along the screw rod 5, thereby changing the distance between the two groups of, circular screw hole has been seted up to the central point of supporting shoe 11, and circular screw hole and screw thread head 10 mutually support, the surface at both ends all is provided with anti-skidding line around the supporting shoe 11, the surface that supporting shoe 11 is close to 6 one sides of knob is the plane, the surface that supporting shoe 11 kept away from 6 one sides of knob sets up to arc, this structure makes supporting shoe 11 can install on screw thread head 10 or dismantle, and when the arc surface of supporting shoe 11 was outwards, can laminate mutually with circular pipeline's inner wall, and when the plane of supporting shoe 11 was outwards, can closely laminate with square pipeline's inner wall, thereby make whole device can be applicable to different devices.

The working principle is as follows: when the device is used, the sleeve block 3 is firstly sleeved on the thermocouple body 1, the plug bush 2 is sleeved on the thermocouple body 1, the conical head of the plug bush 2 is inserted into the sleeve block 3 through rotation, the plug bush 2 moves in the inner groove of the sleeve block 3 through threads through rotation, the plug bush 2 is continuously tightened through a conical structure, so that the plug bush 2 and the sleeve block 3 are fixed on the thermocouple body 1, then the device is placed into a pipeline, then the knob 6 is rotated, the lead screw 5 is driven to rotate through the knob 6, when the lead screw 5 rotates, two groups of nuts 8 symmetrically sleeved on the lead screw 5 are matched with the threads on the lead screw 5, so that two groups of sleeve rods 9 are driven to extend and retract in two ends of the fixed block 4, two groups of thread heads 10 connected on the two groups of sleeve rods 9 drive two groups of supporting blocks 11 to mutually move away from or approach each other, and the sleeve rods 9 extend out of the fixed block 4, the two groups of supporting blocks 11 are oppositely opened to contact the inner wall of the pipeline, and the knob 6 is continuously rotated, so that the two groups of supporting blocks 11 extrude the inner wall of the pipeline, and the device is fixed in the pipeline.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. The utility model provides a thermocouple accurate positioning device, includes thermocouple body (1), its characterized in that: the thermocouple comprises a thermocouple body (1), wherein an inserting sleeve (2) is sleeved on the thermocouple body (1), a sleeve block (3) is sleeved at the left end of the inserting sleeve (2), a fixed block (4) is fixedly welded at the upper end of the sleeve block (3), a lead screw (5) is installed inside the fixed block (4) through a bearing, a knob (6) is fixedly sleeved at the central position of the lead screw (5), the upper end of the knob (6) is located in a notch (7), the notch (7) is arranged at the central position of the upper end of the fixed block (4), nuts (8) are symmetrically sleeved at the two ends of the lead screw (5), the nuts (8) are fixedly installed at the opening of a sleeve rod (9), the sleeve rod (9) is symmetrically sleeved at the two ends of the lead screw (5), the outer ends of the two groups of the sleeve rods (9) respectively penetrate through the front end and the rear end of the fixed block (4), and a threaded head (10), and the supporting block (11) is sleeved on the thread head (10).

2. The accurate thermocouple positioning device according to claim 1, wherein: the outside of plug bush (2) is provided with the external screw thread, the inboard of cover block (3) is provided with the external screw thread assorted internal thread with plug bush (2), plug bush (2) set up to the cone, the outside size assorted circular cone groove with plug bush (2) is seted up to the inside of cover block (3), V-arrangement opening has been seted up in plug bush (2) equidistance encircleing.

3. The accurate thermocouple positioning device according to claim 1, wherein: the screw rod is characterized in that threads matched with the screw nut (8) are symmetrically arranged on the surfaces of the two ends of the screw rod (5), and a sliding groove matched with the outer side size of the end of the screw rod (5) is formed in the sleeve rod (9).

4. The accurate thermocouple positioning device according to claim 1, wherein: one end of the loop bar (9) inserted into the fixing block (4) is set to be square, and a sliding groove matched with the square end of the loop bar (9) in size is formed in the fixing block (4).

5. The accurate thermocouple positioning device according to claim 1, wherein: the anti-skidding knob is characterized in that a circular threaded hole is formed in the center of the supporting block (11), the circular threaded hole is matched with the threaded head (10), anti-skidding threads are arranged on the surfaces of the front end and the rear end of the supporting block (11), the surface of one side, close to the knob (6), of the supporting block (11) is a plane, and the surface of one side, far away from the knob (6), of the supporting block (11) is arc-shaped.

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