Hot end equipment and thermocouple fixing device thereof

Abstract

The utility model discloses a hot end device and a thermocouple fixing device thereof, which comprise a fixing block and two clamping blocks, the fixing block is provided with a taper hole with a large upper end and a small lower end, and the taper hole extends from the upper surface of the fixing block to the lower surface of the fixing block; the two clamping blocks which are oppositely arranged are partially inserted into the conical holes; one side, close to the other clamping block, of each clamping block is provided with an arc-shaped groove, and when the two clamping blocks are inserted into the conical hole, the inner walls of the two arc-shaped grooves define a clamping hole for clamping the thermocouple; the outer diameter of the thermocouple is twice larger than the depth of the arc-shaped groove; and the clamping block is provided with an outer side wall matched with the conical hole. According to the utility model, the tapered hole and the two clamping blocks matched with the tapered hole are arranged on the fixed block to form an inclined plane self-locking structure, when the thermocouple is vertically placed in the clamping hole formed by the two clamping blocks, the two clamping blocks and the thermocouple move downwards to be closer to the lower end of the tapered hole with a smaller aperture due to the action of gravity, and the clamping blocks and the thermocouple can be clamped in the inclined plane self-locking structure. Therefore, the thermocouple is locked.

Description

Technical Field

[0001] This utility model relates to the field of fixing device technology, and in particular to a hot-end device and its thermocouple fixing device. Background Technology

[0002] In photovoltaic glass production, thermocouples are installed at different locations on the hot-end equipment as needed to detect the temperature of various sections within the furnace. Thermocouples come in two types: assembled and armored. Assembled thermocouples have a ceramic outer surface, while armored thermocouples have a metal outer surface. During production, due to insecure fixing, thermocouples may become loose or shift, eventually coming into contact with the glass surface and causing scratches.

[0003] Patent application No. (201410597503.1) discloses a thermocouple fixing device, which includes a flexible heat insulation part, a flexible heat insulation gasket, and an elastic self-locking part. The elastic self-locking part is connected to one end of the flexible heat insulation part, and a gripping groove is provided on the outer surface of the other end of the flexible heat insulation part. A protrusion that mates with the gripping groove is provided on the elastic self-locking part, and grooves are provided on the inner wall of the elastic self-locking part. One end of the flexible heat insulation gasket is connected to the inner wall of one end of the flexible heat insulation part. This thermocouple fixing device has a relatively complex structure, and the elastic self-locking part is prone to damage. During use, this can cause the thermocouple to be loosely fixed, potentially leading to loosening, slippage, or scratching of the glass surface.

[0004] Therefore, existing technologies still need improvement. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a hot-end device and its thermocouple fixing device to solve the technical problem of glass scratches caused by insecure thermocouple fixing in the prior art, which results in contact with the glass surface.

[0006] To solve the above-mentioned technical problems, on the one hand, some embodiments of this utility model disclose a thermocouple fixing device, including a fixing block and two clamping blocks, wherein the fixing block is provided with a tapered hole that is larger at the top and smaller at the bottom, and the tapered hole extends from the upper surface of the fixing block to the lower surface.

[0007] Two clamping blocks arranged opposite each other are partially inserted into the conical hole;

[0008] The clamping block has an arc-shaped groove on the side closest to the other clamping block. When the two clamping blocks are inserted into the conical hole, the inner walls of the two arc-shaped grooves form a clamping hole for clamping the thermocouple.

[0009] The outer diameter of the thermocouple is more than twice the depth of the arc-shaped groove;

[0010] Furthermore, the clamping block has an outer wall that is adapted to the tapered hole.

[0011] In some embodiments, the fixing block is fixedly connected to the hot end device.

[0012] In some embodiments, the centerline of the tapered hole is perpendicular to the horizontal plane.

[0013] In some embodiments, the arcuate groove extends from the upper end to the lower end of the clamping block.

[0014] In some embodiments, the inner wall of the arcuate groove matches the outer diameter of the thermocouple.

[0015] In some embodiments, when the thermocouple is placed in the clamping hole and the two clamping blocks are inserted into the conical hole, the distance between the two clamping blocks is 1.5-2.5 mm.

[0016] In some embodiments, the conical hole is a conical hole, the upper opening diameter of the conical hole is larger than the lower opening diameter, and the diameter of the conical hole transitions smoothly from top to bottom.

[0017] In some embodiments, the tapered hole is a square-pyramidal hole, which is formed by a first hole wall, a second hole wall, a third hole wall, and a fourth hole wall.

[0018] The first hole wall and the third hole wall are arranged in parallel, and the first hole wall and the third hole wall are perpendicular to the horizontal plane;

[0019] The second and fourth hole walls are perpendicularly connected to the first and third hole walls;

[0020] The second and fourth hole walls are symmetrically arranged, and the angle between the second and fourth hole walls and the horizontal plane is an acute angle. The angle between the plane containing the second hole wall and the plane containing the fourth hole wall is also an acute angle.

[0021] On the other hand, embodiments of this utility model also disclose a hot-end device, including a furnace body and the aforementioned thermocouple fixing device. The top wall of the furnace body is provided with a receiving cavity for accommodating the fixing block. The bottom of the receiving cavity has a through hole that extends into the interior of the furnace body, through which the thermocouple passes.

[0022] In some embodiments, the horizontal cross-section of the lower part of the fixing block is smaller than the horizontal cross-section of the upper part of the fixing block, so that a step is formed between the upper and lower parts of the fixing block, which overlaps the edge of the receiving cavity.

[0023] By adopting the above technical solution, this utility model has at least the following beneficial effects:

[0024] This utility model provides a hot-end device and its thermocouple fixing device. By providing a tapered hole with a larger upper end and a smaller lower end on a fixing block, and two clamping blocks adapted to the tapered hole, the thermocouple can be placed in the clamping hole formed by the two clamping blocks to achieve locking of the thermocouple. When the thermocouple is placed vertically in the clamping hole, due to gravity, the two clamping blocks and the thermocouple tend to move downwards. The further downwards the two clamping blocks and the thermocouple move, the closer they get to the lower end of the tapered hole with the smaller diameter, and the thermocouple is clamped more tightly and thus fixed more securely. Compared with existing fixing devices using elastic self-locking parts and other structures, this method has a simpler structure, lower manufacturing requirements, lower cost, and longer service life. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a thermocouple fixing device disclosed in some embodiments of the present utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Fixing block; 2. Clamping block; 3. Thermocouple; 4. Hot end equipment; 5. Glass. Detailed Implementation

[0029] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0030] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0031] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0032] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0033] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0034] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as having idealized or highly formalized meanings, unless expressly defined herein.

[0035] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0036] like Figure 1As shown in the figure, some embodiments of this utility model disclose a thermocouple fixing device, including a fixing block 1 and two clamping blocks 2. The fixing block 1 has a conical hole with a larger upper end and a smaller lower end, extending from the upper surface to the lower surface of the fixing block 1. The two clamping blocks 2, arranged opposite each other, are partially inserted into the conical hole. Each clamping block 2 has an arc-shaped groove on its side closest to the other clamping block 2. When the two clamping blocks 2 are inserted into the conical hole, the inner walls of the two arc-shaped grooves form a clamping hole for the thermocouple 3. The outer diameter of the thermocouple 3 is greater than twice the depth of the arc-shaped groove. Furthermore, the clamping block 2 has an outer wall adapted to the conical hole. The conical hole can be a circular conical hole or a square conical hole, etc.

[0037] This embodiment features a tapered hole (larger at the top, smaller at the bottom) on a fixing block 1, and two clamping blocks 2 whose outer walls are adapted to the tapered hole. This creates a beveled self-locking structure between the tapered hole and the two clamping blocks 2. When the thermocouple 3 is placed vertically in the clamping hole formed by the two clamping blocks 2, gravity causes the two clamping blocks 2 and the thermocouple 3 to tend to move downwards. The further downwards the two clamping blocks 2 and the thermocouple 3 move, the closer they get to the lower end of the tapered hole with the smaller diameter, thus locking the thermocouple 3 in place. In this embodiment, the clamping blocks 2 are preferably made of stainless steel or heat-resistant steel, which can withstand the temperature transmitted by the thermocouple 3 and will not rust.

[0038] like Figure 1 As shown, some embodiments of this utility model disclose a thermocouple fixing device. Based on the above embodiments, the fixing block 1 is fixedly connected to the hot end device 4. Specifically, matching screw holes can be opened on the hot end device 4 and the fixing block 1 respectively, and the fixing block 1 and the hot end device 4 can be connected by bolts. Alternatively, the fixing block 1 can be welded to the hot end device 4, and the thermocouple 3 is inserted into the hot end device 4 from the upper end of the hot end device 4.

[0039] like Figure 1 As shown, some embodiments of this utility model disclose a thermocouple fixing device. Based on the above embodiments, in order to better achieve inclined self-locking clamping, the center line of the conical hole needs to be perpendicular to the horizontal plane. The vertically set conical hole allows the two clamping blocks 2 to be evenly clamped downward in the conical hole under the action of gravity, effectively avoiding the positional displacement of the two clamping blocks 2 due to uneven force during the clamping process caused by the skewness of the conical hole, which would affect the clamping effect on the thermocouple 3.

[0040] like Figure 1 As shown, some embodiments of this utility model disclose a thermocouple fixing device. Based on the above embodiments, the arc-shaped groove can extend from the upper end to the lower end of the clamping block 2, and the inner wall of the arc-shaped groove matches the outer diameter of the thermocouple 3. By setting the inner wall of the arc-shaped groove to match the outer diameter of the thermocouple 3, the thermocouple 3 is tightly fitted with the arc-shaped groove, increasing the friction force on the thermocouple 3 and preventing the thermocouple 3 from sliding or moving.

[0041] like Figure 1 As shown, some embodiments of this utility model disclose a thermocouple fixing device. Based on the above embodiments, when the thermocouple 3 is placed in the clamping hole and the two clamping blocks 2 are inserted into the conical hole, there can be a certain distance between the two clamping blocks 2, for example, the distance is 1.5-2.5mm. By setting a reasonable distance, the two clamping blocks 2 have a displacement space that can move closer to each other during the downward movement of the thermocouple 3, and the locking effect of the thermocouple is better.

[0042] This utility model discloses a thermocouple fixing device in some embodiments. Based on the above embodiments, when the conical hole is a circular conical hole, the upper aperture diameter of the circular conical hole is larger than the lower aperture diameter, and the aperture of the circular conical hole smoothly transitions from top to bottom. When the conical hole is a square conical hole, the square conical hole is formed by a first hole wall, a second hole wall, a third hole wall, and a fourth hole wall. The first hole wall and the third hole wall are arranged in parallel and are perpendicular to the horizontal plane. The second hole wall and the fourth hole wall are perpendicularly connected to the first hole wall and the third hole wall. The second hole wall and the fourth hole wall are symmetrically arranged, and the angle between the second hole wall and the fourth hole wall and the horizontal plane is an acute angle. The angle between the plane containing the second hole wall and the plane containing the fourth hole wall is also an acute angle.

[0043] It should be noted that the conical hole and square conical hole are only some common conical hole structures listed. In actual work, it is not limited to the above situations. All technical solutions for fixing thermocouples using the inclined self-locking structure disclosed in this utility model are within the protection scope of this utility model.

[0044] Some embodiments of this utility model also disclose a hot-end device, including a furnace body and the aforementioned thermocouple fixing device. The thermocouple fixing device is fixed to the top of the furnace body, and a through hole or through-hole for the thermocouple 3 to pass through is generally provided on the top of the furnace body. Specifically, a receiving cavity for accommodating the fixing block 1 can be opened on the top wall of the furnace body. The bottom of the receiving cavity has a through hole extending into the interior of the furnace body, through which the thermocouple 3 passes. The lower horizontal cross-section of the fixing block 1 is smaller than the upper horizontal cross-section of the fixing block 1, so that a step is formed between the upper and lower parts of the fixing block 1, overlapping the edge of the receiving cavity. By placing the fixing block 1 in the receiving cavity, the fixing block 1 is connected to the hot-end device 4. Setting the lower horizontal cross-section of the fixing block 1 to be smaller than the upper horizontal cross-section of the fixing block 1, so that a step is formed between the upper and lower parts of the fixing block 1, overlapping the edge of the receiving cavity, the overlapping structure can not only realize the connection between the fixing block 1 and the receiving cavity, but also facilitate disassembly, so that the thermocouple 3 can be replaced in time when it fails.

[0045] In summary, the hot-end device and its thermocouple fixing device disclosed in this utility model achieve the locking of the thermocouple by setting a tapered hole with a larger upper end and a smaller lower end on the fixing block, and two clamping blocks adapted to the tapered hole, so that the tapered hole and the two clamping blocks form an inclined self-locking structure. When the thermocouple is placed vertically in the clamping hole formed by the two clamping blocks, due to gravity, the two clamping blocks and the thermocouple tend to move downward. The more the two clamping blocks and the thermocouple move downward, the closer they will be to the lower end of the tapered hole with the smaller diameter, thereby achieving the locking of the thermocouple.

[0046] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0047] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A thermocouple fixing device, characterized in that, It includes a fixing block (1) and two clamping blocks (2), wherein the fixing block (1) is provided with a tapered hole that is larger at the top and smaller at the bottom, and the tapered hole extends from the upper surface of the fixing block (1) to the lower surface; The two clamping blocks (2) arranged opposite to each other are partially inserted into the conical hole; The clamping block (2) has an arc-shaped groove on the side near the other clamping block (2). When the two clamping blocks (2) are inserted into the conical hole, the inner walls of the two arc-shaped grooves form a clamping hole for clamping the thermocouple (3). The outer diameter of the thermocouple (3) is more than twice the depth of the arc-shaped groove; Furthermore, the clamping block (2) has an outer wall that is adapted to the tapered hole.

2. The thermocouple fixing device according to claim 1, characterized in that, The fixing block (1) is fixedly connected to the hot end device (4).

3. The thermocouple fixing device according to claim 1, characterized in that, The centerline of the tapered hole is perpendicular to the horizontal plane.

4. A thermocouple fixing device according to claim 1, characterized in that, The arc-shaped groove extends from the upper end to the lower end of the clamping block (2).

5. A thermocouple fixing device according to claim 1, characterized in that, The inner wall of the arc-shaped groove matches the outer diameter of the thermocouple (3).

6. A thermocouple fixing device according to claim 1, characterized in that, When the thermocouple (3) is placed in the clamping hole and the two clamping blocks (2) are inserted into the conical hole, the distance between the two clamping blocks (2) is 1.5-2.5 mm.

7. A thermocouple fixing device according to claim 1, characterized in that, The conical hole is a conical hole, the upper opening diameter of the conical hole is larger than the lower opening diameter, and the diameter of the conical hole transitions smoothly from top to bottom.

8. A thermocouple fixing device according to claim 1, characterized in that, The conical hole is a square conical hole, which is formed by a first hole wall, a second hole wall, a third hole wall, and a fourth hole wall. The first hole wall and the third hole wall are arranged in parallel, and the first hole wall and the third hole wall are perpendicular to the horizontal plane; The second hole wall and the fourth hole wall are perpendicularly connected to the first hole wall and the third hole wall; The second hole wall and the fourth hole wall are symmetrically arranged, and the angle between the second hole wall and the fourth hole wall and the horizontal plane is an acute angle, and the angle between the plane containing the second hole wall and the plane containing the fourth hole wall is an acute angle.

9. A hot-end device, characterized in that, The device includes a furnace body and a thermocouple fixing device according to any one of claims 1-8. The top wall of the furnace body has a cavity for accommodating the fixing block (1). The bottom of the cavity has a through hole that extends into the interior of the furnace body. The thermocouple (3) passes through the through hole.

10. The hot-end device according to claim 9, characterized in that, The lower horizontal cross section of the fixing block (1) is smaller than the upper horizontal cross section of the fixing block (1), so that a step is formed between the upper and lower parts of the fixing block (1) and attached to the edge of the accommodating cavity.

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