CN216049070U - Muffle furnace wiring device and muffle furnace - Google Patents

Abstract

The utility model relates to a muffle furnace termination and muffle furnace, this muffle furnace termination include conducting rod (1), insulating cover (2) and fixed subassembly (6), conducting rod (1) wear to locate insulating cover (2), insulating cover (2) are used for passing furnace body (3) of muffle furnace, so that furnace body (3) with conducting rod (1) is insulating each other, the first end of conducting rod (1) be used for with wire (4) outside furnace body (3) are connected, the second end of conducting rod (1) be used for with heating element (5) in furnace body (3) are connected, fixed subassembly (6) set up on insulating cover (2) and be used for with insulating cover (2) are fixed on furnace body (3). Above-mentioned muffle furnace termination can be convenient for heating element's change to can avoid the wire to be in among the high temperature in the muffle furnace.

Description

Muffle furnace wiring device and muffle furnace

Technical Field

The utility model relates to a glass substrate production facility field specifically relates to a muffle furnace termination and muffle furnace.

Background

In the muffle furnace of glass production line, the heating element that is located in the muffle furnace is in high temperature environment for a long time, breaks down easily, needs the unscheduled change, because the wire is lug connection with heating element, need move whole wire when changing heating element, nevertheless because wire length is longer, weight is heavier, moves whole wire and leads to heating element to change inconveniently. In addition, in order to maintain the temperature in the muffle furnace, the connection portion between the heating element and the lead needs to be sealed in the muffle furnace, so that the connection portion between the lead and the heating element is exposed to high temperature in the muffle furnace for a long time, but the lead cannot withstand high temperature and is easily damaged.

SUMMERY OF THE UTILITY MODEL

The purpose of this disclosure is to provide a muffle furnace termination and muffle furnace, this muffle furnace termination can be convenient for heating element's change to can avoid the wire to be in among the high temperature in the muffle furnace, thereby prolong the life of wire.

In order to achieve the above object, according to one aspect of the present disclosure, the present disclosure provides a muffle furnace wiring device, including a conducting rod, an insulating sleeve and a fixing component, the conducting rod is inserted into the insulating sleeve, the insulating sleeve is used for passing through a furnace body of the muffle furnace, so that the furnace body is insulated from the conducting rod, a first end of the conducting rod is used for being connected with a wire outside the furnace body, a second end of the conducting rod is used for being connected with a heating element inside the furnace body, and the fixing component is disposed on the insulating sleeve and is used for fixing the insulating sleeve on the furnace body.

Optionally, the fixing assembly includes a first stopping structure formed on the outer circumferential surface of the insulating sleeve and a second stopping structure detachably mounted on the insulating sleeve, the first stopping structure is used for stopping on the outer wall of the furnace body, and the second stopping structure is used for stopping on the inner wall of the furnace body.

Optionally, the insulating cover includes first section and second section, first section is located first backstop structure with between the second section, the second section is followed the radial evagination of insulating cover is in first section, so that the second section with form the step face between the first section, second backstop structure detachably installs on first section, just the one end backstop of second backstop structure is in on the inner wall of furnace body, the other end backstop of second backstop structure is in on the step face.

Optionally, the second stopping structure comprises two stopping parts which are oppositely arranged along the radial direction of the insulating sleeve, each stopping part comprises a clamping section and connecting lugs which are formed on two opposite sides of the clamping section, the two clamping sections clamp the first section together, and each connecting lug is provided with a mounting hole for a fastener to pass through.

Alternatively, the first segment may be formed in a circular shape in cross section, and each of the clamping segments may be formed in a circular arc shape in cross section.

Optionally, the central angle α of each of the clamping segments is smaller than 180 °.

Optionally, an internal thread is formed on the inner surface of the insulating sleeve, and an external thread connected with the internal thread is formed on the outer surface of the conductive rod.

Optionally, the first end of the conducting rod is provided with two first nuts, the second end of the conducting rod is provided with two second nuts, the wire is provided with a first connecting portion, the first connecting portion is sleeved on the first end of the conducting rod, the first nuts are used for clamping the first connecting portion, the heating element is provided with a second connecting portion, the second connecting portion is sleeved on the second end of the conducting rod, and the second nuts are used for clamping the second connecting portion.

Optionally, the conductive rod is made of a red copper material, and the insulating sleeve is made of a ceramic material.

According to another aspect of the disclosure, a muffle furnace is provided, which comprises the muffle furnace wiring device.

Through above-mentioned technical scheme, because the first end of the conducting rod of the muffle furnace termination that this disclosure provides is connected with the wire outside the furnace body, the second end of conducting rod is connected with the heating element in the furnace body, when heating element breaks down, can hold the second of conducting rod with heating element and dismantle and get off and change, at the dismantlement of heating element and change in-process, can not influence the wire of connection at the first end of conducting rod, that is to say, need not to move the wire in heating element's change in-process, thereby the dismouting of heating element of being convenient for. Moreover, the muffle furnace wiring device provided by the disclosure can separate the heating element and the wire at the inner side and the outer side of the furnace body, so that the wire does not need to be partially positioned in high temperature inside the muffle furnace due to connection with the heating element, the wire is prevented from being damaged due to high temperature, and the service life of the wire is prolonged. In addition, the insulating sleeve is fixed on the furnace body by the fixing component, so that the phenomenon that the furnace body is electrified due to the fact that the insulating sleeve moves relative to the furnace body and the lead is in contact with the furnace body can be avoided, and the safety of the muffle furnace in the using process is improved.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a perspective view of a muffle furnace wiring assembly assembled with a furnace body, wires, and heating elements provided in an exemplary embodiment of the present disclosure;

FIG. 2 is a top view of a muffle junction device assembled with a furnace body, wires, and heating elements provided in an exemplary embodiment of the disclosure;

FIG. 3 is a perspective view of a muffle furnace junction device according to an exemplary embodiment of the disclosure after connection of a conductive rod and an insulating sleeve;

FIG. 4 is a perspective view of a stop of a muffle wiring device provided by an exemplary embodiment of the present disclosure;

FIG. 5 is a front view of a stop of a muffle wiring device provided in an exemplary embodiment of the present disclosure.

Description of the reference numerals

1-a conductive rod; 2-an insulating sleeve; 21-first stage; 22-a second section; 221-step surface; 3-furnace body; 4-a wire; 5-a heating element; 6-a fixing component; 61-a first stop; 62-a second stop structure; 621-a stop; 6211-a clamping section; 6212-a connective ear; 62121-mounting holes; 7-a fastener; 8-a first nut; 9-a second nut; 10-a first connection; 11-second connection.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of directional terms such as "inner and outer" means "inner and outer" with respect to the contour of the component or structure itself, unless otherwise specified.

As shown in fig. 1 to 5, according to an aspect of the present disclosure, the present disclosure provides a muffle furnace wiring device, which includes a conducting rod 1, an insulating sleeve 2 and a fixing component 6, wherein the conducting rod 1 is inserted into the insulating sleeve 2, the insulating sleeve 2 is used for passing through a furnace body 3 of the muffle furnace, so that the furnace body 3 and the conducting rod 1 are insulated from each other, a first end of the conducting rod 1 is used for being connected with a conducting wire 4 outside the furnace body 3, a second end of the conducting rod 1 is used for being connected with a heating element 5 inside the furnace body 3, and the fixing component 6 is arranged on the insulating sleeve 2 and is used for fixing the insulating sleeve 2 on the furnace body 3.

Since the temperature inside the muffle needs to be controlled using the heating element 5, the heating element 5 needs to be connected to an external power source to enable the heating element 5 to heat the muffle. The heating element 5 within the muffle and the wire 4 outside the muffle may be connected using the muffle wiring arrangement provided by the present disclosure when the heating element 5 is connected to an external power source. Specifically, can make the insulating cover 2 of the muffle furnace termination that this disclosure provided pass furnace body 3 of muffle furnace earlier, because conducting rod 1 wears to locate insulating cover 2, insulating cover 2 passes furnace body 3 of muffle furnace, so lie in insulating cover 2 between conducting rod 1 and furnace body 3 and can make furnace body 3 and conducting rod 1 insulate each other, prevent that furnace body 3 from electrified. After the muffle furnace wiring device penetrates through the furnace body 3, the first end of the conducting rod 1 positioned outside the muffle furnace can be connected with the wire 4, the second end of the conducting rod 1 positioned inside the muffle furnace is connected with the heating element 5, the conducting rod 1 can enable the heating element 5 and the wire 4 to be conducted, and the wire 4 can enable the heating element 5 to generate heat after being connected with an external power supply. Because the insulating sleeve 2 is provided with the fixing component 6, the insulating sleeve 2 penetrating through the furnace body 3 can be fixed on the furnace body 3 by the fixing component 6, thereby preventing the insulating sleeve 2 from moving relative to the furnace body 3.

Through the technical scheme, because the first end of the conducting rod 1 of the muffle furnace termination that this disclosure provides is connected with wire 4 outside the furnace body 3, the second end of conducting rod 1 is connected with heating element 5 in the furnace body 3, when heating element 5 breaks down, can hold the second of conducting rod 1 with heating element 4 and dismantle and change, in the dismantlement and the change in-process of heating element 4, can not influence the wire 4 of connection on the first end of conducting rod 1, that is to say, need not to move wire 4 in the change in-process of heating element 4, thereby be convenient for the dismouting of heating element 4. Moreover, the muffle furnace wiring device provided by the disclosure can separate the heating element 5 and the lead 4 at the inner side and the outer side of the furnace body, so that the lead 4 is not required to be partially positioned in high temperature inside the muffle furnace due to connection with the heating element 5, the lead 4 is prevented from being damaged due to high temperature, and the service life of the lead 4 is prolonged. In addition, the insulating sleeve 2 is fixed on the furnace body 3 by the fixing component 6, so that the phenomenon that the furnace body 3 is electrified due to the fact that the conducting wire 4 is contacted with the furnace body 3 because the insulating sleeve 2 moves relative to the furnace body 3 can be avoided, and the safety of the muffle furnace in the using process is improved.

The fixing assembly 6 may have any suitable structure or shape, for example, in an embodiment provided by the present disclosure, as shown in fig. 2 and 3, the fixing assembly 6 may alternatively include a first stopping structure 61 formed on the outer circumferential surface of the insulating sleeve 2 and a second stopping structure 62 detachably mounted on the insulating sleeve 2, the first stopping structure 61 is used for stopping on the outer wall of the furnace body 3, and the second stopping structure 62 is used for stopping on the inner wall of the furnace body 3.

Because the first stopping structure 61 is formed on the outer peripheral surface of the insulating sleeve 2, and the first stopping structure 61 is used for stopping on the outer wall of the furnace body 3, when the insulating sleeve 2 passes through the furnace body 3 of the muffle furnace, the first stopping structure 61 formed on the outer peripheral surface of the insulating sleeve 2 can stop on the outer wall of the furnace body 3, thereby not only limiting the insulating sleeve 2 passing through the furnace body 3, but also preventing the furnace body 3 from contacting with the conducting rod 1 positioned outside the muffle furnace. Since the second stopping structure 62 is detachably mounted on the insulating sleeve 2, and the second stopping structure 62 is used for stopping on the inner wall of the furnace body 3, after the first stopping structure 61 stops on the outer wall of the furnace body 3, the second stopping structure 62 can be mounted on the insulating sleeve 2, and the second stopping structure 62 stops on the inner wall of the furnace body 3, and the second stopping structure 62 can prevent the furnace body 3 from contacting the conducting rod 1 in the muffle furnace. The insulating sleeve 2 can be fixed on the furnace body 3 through the first stopping structure 61 stopping on the outer wall of the furnace body 3 and the second stopping structure 62 stopping on the inner wall of the furnace body 3, so that the insulating sleeve 2 is prevented from moving relative to the furnace body 3.

Alternatively, as shown in fig. 1 and 3, the insulation sleeve 2 may include a first section 21 and a second section 22, the first section 21 is located between the first stopping structure 61 and the second section 22, the second section 22 protrudes outward from the first section 21 in the radial direction of the insulation sleeve 2, so that a step surface is formed between the second section 22 and the first section 21, the second stopping structure 62 is detachably mounted on the first section 21, one end of the second stopping structure 62 stops on the inner wall of the furnace body 3, and the other end of the second stopping structure 62 stops on the step surface. Since the insulating sleeve 2 comprises the first section 21 and the second section 22, the first section 21 is located between the first stopping structure 61 and the second section 22, after the insulating sleeve 2 passes through the furnace body 3 of the muffle furnace, the furnace body 3 is located on the first section 21, since the second section 22 is formed with a step surface protruding from the first section 21 along the insulating sleeve 2 radially outwards, the second stopping structure 62 can be detachably mounted on the first section 21, one end of the second stopping structure 62 is stopped on the inner wall of the furnace body 3, and the other end of the second stopping structure 62 is stopped on the step surface, so as to limit the position of the second stopping structure 62 on the first section 21, and the second stopping structure 62 clamped between the inner wall of the furnace body 3 and the step surface of the second section 22 can prevent the furnace body 3 from contacting the conductive rod 1 located in the muffle furnace to cause the furnace body 3 to be electrified.

In other embodiments provided by the present disclosure, the insulation sleeve 2 may also have a groove formed on the outer surface, and the second stopping structure 62 may be a sleeve with a boss formed on the inner surface, so as to detachably mount the second stopping structure 62 on the first section 21 by clamping the boss in the groove and to define the position of the second stopping structure 62 on the first section 21.

To achieve the detachable mounting of the second stopping structure 62 on the first segment 21, in one embodiment provided by the present disclosure, as shown in fig. 1 and 4, the second stopping structure 62 may include two stopping members 621 disposed opposite to each other in a radial direction of the insulating sheath 2, each stopping member 621 includes a clamping segment 6211 and an engaging lug 6212 formed on two opposite sides of the clamping segment 6211, the two clamping segments 6211 clamp the first segment 21 together, and each engaging lug 6212 is formed with a mounting hole 62121 for the fastening member 7 to pass through. The second stopping structure 62 is composed of two stopping members 621, each stopping member 621 includes a clamping section 6211 and two connecting lugs 6212 formed on two opposite sides of the clamping section 6211, the clamping sections 6211 of the two stopping members 621 arranged opposite to each other in the radial direction of the insulating sheath 2 clamp the first section 21 together, and since each connecting lug 6212 is formed with a mounting hole 62121 for the fastening member 7 to pass through, the fastening member 7 can pass through the mounting hole 62121 on the same side of the connecting lug 6212, so that the connecting lugs 6212 on two sides are connected respectively.

Alternatively, as shown in fig. 1 and 4, the cross section of the first segment 21 may be formed in a circular shape, and the cross section of each grip segment 6211 may be formed in a circular arc shape. Because the cross section of the first section 21 is formed into a circular shape, and the cross section of each clamping section 6211 is also formed into a circular arc shape, the two clamping sections 6211 can better fit with the first section 21 by clamping the first section 21 together, the contact area between the clamping sections 6211 and the first section 21 is increased, and the clamping effect of the clamping sections 6211 on the first section 21 is improved.

Alternatively, as shown in fig. 5, each gripping section 6211 may have a corresponding central angle α that is less than 180 °. Because the central angle α corresponding to each clamping segment 6211 is less than 180 °, after the connecting lugs 6212 of the two stoppers 621 are connected, the fastener 7 passing through the mounting hole 62121 is continuously screwed to generate a pressing force between the clamping segments 6211 of the two stoppers 621, and the clamping segments 6211 can be prevented from rotating relative to the first segment 21 due to the generated pressing force between the clamping segments 6211.

Alternatively, an internal thread is formed on the inner surface of the insulating sleeve 2, and an external thread connected to the internal thread is formed on the outer surface of the conductive rod 1. The conducting rod 1 penetrating through the insulating sleeve 2 can be connected with the insulating sleeve 2 through an external thread formed on the outer surface and connected with the internal thread of the insulating sleeve 2, so that the conducting rod 1 and the insulating sleeve 2 are prevented from sliding relatively.

In order to facilitate replacement of the heating element 5 or the conducting wire 4, optionally, as shown in fig. 1 and fig. 3, two first nuts 8 are disposed on a first end of the conducting rod 1, two second nuts 9 are disposed on a second end of the conducting rod 1, a first connecting portion 10 is disposed on the conducting wire 4, the first connecting portion 10 is sleeved on the first end of the conducting rod 1, the two first nuts 8 are used for clamping the first connecting portion 10, a second connecting portion 11 is disposed on the heating element 5, the second connecting portion 11 is sleeved on the second end of the conducting rod 1, and the two second nuts 9 are used for clamping the second connecting portion 11. Because the first connecting part 10 is arranged on the lead 4, the first connecting part 10 can be sleeved on the first end of the conducting rod 1, the first connecting part 10 is positioned between the two first nuts 8 arranged on the first end of the conducting rod 1, and the two first nuts 8 move towards the direction close to each other by screwing the two first nuts 8, so that the two first nuts 8 clamp the first connecting part 10, and the connection between the lead 4 and the conducting rod 1 is realized; because the heating element 5 is provided with the second connecting part 11, the second connecting part 11 can be sleeved on the second end of the conducting rod 1, the second connecting part 11 is positioned between the two second nuts 9 arranged on the second end of the conducting rod 1, and the two second nuts 9 are moved towards the direction close to each other by screwing the two second nuts 9, so that the two second nuts 9 clamp the second connecting part 11, and the connection between the heating element 5 and the conducting rod 1 is realized.

In other embodiments provided by the present disclosure, the first end and the second end of the conductive rod 1 may also have connection holes formed thereon, inner threads formed on inner surfaces of the connection holes, and outer threads connected to the inner threads formed on outer surfaces of the first connection portion 10 and the second connection portion 11, and the conductive wire 4 and the heating element 5 may be connected to the conductive rod 1 through the outer threads connected to the inner threads of the connection holes formed on the outer surfaces of the first connection portion 10 and the second connection portion 11.

Alternatively, the conductive rod 1 and the insulating sleeve 2 may be made of any suitable material, for example, in one embodiment, the conductive rod 1 is made of copper material, and the insulating sleeve 2 is made of ceramic material. The red copper has good conductive performance, so that the heating element 5 can be well conducted with the conducting wire 4, and the ceramic has good insulating performance, so that the furnace body 3 can be well insulated from the conducting rod 1.

According to another aspect of the disclosure, a muffle furnace is provided, and the muffle furnace wiring device is included.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. The utility model provides a muffle furnace termination, its characterized in that includes conducting rod (1), insulating cover (2) and fixed subassembly (6), conducting rod (1) wears to locate insulating cover (2), insulating cover (2) are used for passing furnace body (3) of muffle furnace, so that furnace body (3) with conducting rod (1) is insulating each other, the first end of conducting rod (1) be used for with wire (4) outside furnace body (3) are connected, the second end of conducting rod (1) be used for with heating element (5) in furnace body (3) are connected, fixed subassembly (6) set up on insulating cover (2) and be used for with insulating cover (2) are fixed on furnace body (3).

2. Muffle furnace connection device according to claim 1, wherein the fixing assembly (6) comprises a first stop structure (61) formed on the outer circumference of the insulating sleeve (2), the first stop structure (61) being adapted to stop against the outer wall of the furnace body (3), and a second stop structure (62) detachably mounted on the insulating sleeve (2), the second stop structure (62) being adapted to stop against the inner wall of the furnace body (3).

3. Muffle furnace connection device according to claim 2, wherein the insulating sleeve (2) comprises a first section (21) and a second section (22), the first section (21) is located between the first stop structure (61) and the second section (22), the second section (22) protrudes from the first section (21) along the radial direction of the insulating sleeve (2) to form a step surface (221) between the second section (22) and the first section (21), the second stop structure (62) is detachably mounted on the first section (21), one end of the second stop structure (62) stops on the inner wall of the furnace body (3), and the other end of the second stop structure (62) stops on the step surface (221).

4. Muffle furnace wiring device according to claim 3, wherein the second stop structure (62) comprises two stop members (621) arranged opposite to each other in the radial direction of the insulating sleeve (2), each stop member (621) comprises a clamping section (6211) and an attachment lug (6212) formed on two opposite sides of the clamping section (6211), the two clamping sections (6211) clamp the first section (21) together, and a mounting hole (62121) for a fastener (7) to pass through is formed on each attachment lug (6212).

5. Muffle furnace wiring device according to claim 4, characterized in that the cross section of the first section (21) is formed as a circle and the cross section of each clamping section (6211) is formed as a circular arc.

6. Muffle furnace wiring connection device according to claim 5, wherein the central angle (α) of each clamping section (6211) is smaller than 180 °.

7. Muffle furnace connection according to any of claims 1-6, wherein an inner thread is formed on the inner surface of the insulating sleeve (2) and an outer thread connected to the inner thread is formed on the outer surface of the conducting rod (1).

8. The muffle furnace wiring device according to any one of claims 1-6, wherein an external thread is formed on the outer surface of the conducting rod (1), two first nuts (8) are arranged on the first end of the conducting rod (1), two second nuts (9) are arranged on the second end of the conducting rod (1), a first connecting portion (10) is arranged on the wire (4), the first connecting portion (10) is sleeved on the first end of the conducting rod (1), the two first nuts (8) are used for clamping the first connecting portion (10), a second connecting portion (11) is arranged on the heating element (5), the second connecting portion (11) is sleeved on the second end of the conducting rod (1), and the two second nuts (9) are used for clamping the second connecting portion (11).

9. Muffle furnace connection device according to any of claims 1-6, characterized in that the conducting rod (1) is made of red copper material and the insulating sleeve (2) is made of ceramic material.

10. Muffle, characterized in that it comprises a furnace body (3) and a muffle connection device according to any of claims 1-9.

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