Heat preservation structure for observation window of baking tunnel furnace

Abstract

The utility model discloses a heat preservation structure for an observation window of a baking tunnel furnace. The heat preservation structure comprises tunnel furnace equipment, an observation window frame mechanism arranged in an inner cavity of the observation window frame mechanism and an observation window mechanism connected with the end face of the front side of the observation window frame mechanism, wherein 2-5 observation openings are formed in the surface of the front side of the tunnel furnace equipment at equal intervals. According to the technical scheme, the observation window mechanism and the observation window frame mechanism are arranged in the observation opening of the tunnel furnace, the polytetrafluoroethylene sealing ring is arranged between the rectangular frame on the inner side of the window door and the window frame, and the plates on the periphery of the rectangular frame expand outwards through the elastic supporting structure; meanwhile, a layer of heat preservation felt cloth adheres to the partition plate in the rectangular frame, and escape of heat in the furnace is further blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel furnace auxiliary instruments, and particularly relates to a heat preservation structure for an observation window of a baking tunnel furnace. Background Art

[0002] As a baking device, the baking duration, the settings of the bottom fire and the top fire of a tunnel furnace will all affect the final effect of the product. In order to timely master the baking state of food, 2-3 observation windows are arranged on both sides of the furnace body of the tunnel furnace. However, due to the establishment of the windows, a channel for the heat in the furnace to escape is provided. Even though the window door can block the window, there are still gaps and clearances between the window door and the window, which also causes some heat to escape from the gaps. Therefore, those skilled in the art have proposed a heat preservation structure for an observation window of a baking tunnel furnace. Content of the Utility Model

[0003] The purpose of the utility model is to provide a technical solution for a heat preservation structure for an observation window of a baking tunnel furnace to solve the deficiencies proposed in the background art. In order to solve the drawbacks and defects described in the background art, the technical solution has the following content:

[0004] It includes a tunnel furnace device, 2-5 equally spaced observation ports are opened on the front surface of the tunnel furnace device, an observation window frame mechanism arranged in the inner cavity of the observation port, and an observation window mechanism connected to the front end surface of the observation window frame mechanism;

[0005] The observation window mechanism includes a window door blocking the front end port position of the observation port, a longitudinal slide rail longitudinally arranged and fixed above the front end port of the observation port, and a longitudinal slider slidably arranged on the track of the longitudinal slide rail. And a transverse slide rail arranged horizontally is fixed on the bottom surface of the longitudinal slider, and a transverse slider fixed to the top surface of the window door is slidably arranged on the track of the transverse slide rail;

[0006] The observation window frame mechanism includes a window frame fixed in the inner cavity of the observation port, a rectangular frame bolted to the rear side surface of the window door, and a circle of polytetrafluoroethylene sealing ring wrapped on the outer surface of the rectangular frame; wherein, a partition board is fixed on the rear side surface of the rectangular frame, and an opening is provided on each of the four edges of the rectangular frame; two elastic support structures arranged vertically and horizontally are arranged in the inner cavity of the rectangular frame;

[0007] The elastic support structure includes two lining boards, four sleeves fixed on the surfaces of the lining boards close to each other, and a triangular spring is fixed inside each sleeve, and a movable column is inserted into the ports of the sleeves close to each other.

[0008] As a preferred solution of the present utility model, a handle is fixedly installed on the right side of the front surface of the window door, and a connecting plate is fixedly installed on the top surface of the window door. The top end of the connecting plate is fixedly connected to the bottom surface of the horizontal slider.

[0009] As a preferred solution of the present utility model, the front and rear end faces of the window frame communicate with each other, and a high-temperature resistant tempered glass is inlaid and fixed in the rear port of the window frame.

[0010] As a preferred solution of the present utility model, the outer periphery of the partition is fixedly connected to the rear side wall of the inner cavity of the rectangular frame respectively, and a layer of heat-insulating felt is fixedly installed on the front surface of the partition.

[0011] As a preferred solution of the present utility model, the inner side wall of the inner ring of the polytetrafluoroethylene sealing ring is fixedly connected to the outer side wall of the outer surface of the rectangular frame, and the outer surface of the outer ring of the polytetrafluoroethylene sealing ring is in close contact with the inner side wall of the window frame.

[0012] As a preferred solution of the present utility model, the four openings at the four corner edges of the rectangular frame are used for the plates around the rectangular frame to move outward or inward, so as to support and tighten the contact firmness between the polytetrafluoroethylene sealing ring and the window frame.

[0013] As a preferred solution of the present utility model, a convex strip is fixedly installed on the periphery of the front surface of the rectangular frame, and 3-5 bolts are respectively arranged through the convex strips. The front ends of the bolts are fixedly connected to the rear surface of the window door, nuts are locked on the rear end sections of the bolts, and strip-shaped through holes are respectively opened on the convex strips for the plate members around the rectangular frame to move.

[0014] As a preferred solution of the present utility model, the two elastic support structures are arranged in a cross shape in the inner cavity of the rectangular frame, and the two elastic support structures do not contact each other, and are used to provide elastic support for the plates on the left and right sides and the upper and lower sides of the rectangular frame.

[0015] As a preferred solution of the present utility model, a servo electric cylinder is fixedly installed on the front section of the upper surface of the longitudinal slide rail, and the telescopic shaft of the servo electric cylinder is fixedly connected to the top surface of the longitudinal slider.

[0016] In the above technical solution, the technical effects and advantages provided by the present utility model are:

[0017] In this technical solution, an observation window mechanism and an observation window frame mechanism are arranged in the observation port of the tunnel furnace. A Teflon sealing ring is arranged between the rectangular frame on the inner side of the window door and the window frame, and an elastic support structure is used to expand the plate parts around the rectangular frame outward, so as to force the Teflon sealing ring to be in close contact with the inner cavity side wall of the window frame, thereby sealing the gap in the window to achieve heat preservation. At the same time, a layer of heat preservation felt is adhered to the partition board inside the rectangular frame to further block the escape of heat in the furnace. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the tunnel furnace equipment;

[0020] Figure 2 It is a schematic diagram after the decomposition of the tunnel furnace observation window;

[0021] Figure 3 It is a schematic diagram of the observation window mechanism;

[0022] Figure 4 It is a schematic diagram of the observation window frame mechanism;

[0023] Figure 5 It is a schematic diagram of the support structure inside the observation window frame.

[0024] Explanation of the Reference Numerals in the Drawings:

[0025] 1. Tunnel furnace equipment; 2. Observation window mechanism; 21. Window door; 22. Handle; 23. Connecting plate; 24. Servo electric cylinder; 25. Horizontal slide rail; 26. Horizontal slider; 27. Vertical slide rail; 28. Vertical slider; 3. Observation window frame mechanism; 31. Window frame; 32. Teflon sealing ring; 33. Rectangular frame; 34. Elastic support structure; 341. Liner plate; 342. Sleeve; 343. Movable column; 344. Triangular spring; 35. Partition board; 4. Observation port. Detailed Embodiments

[0026] In order to make a clearer explanation and illustration of the technical solutions and implementation methods of the present utility model, the following introduces several preferred specific embodiments for implementing the technical solutions of the present utility model.

[0027] The following description is merely exemplary in nature and is not intended to limit the present disclosure, its applications, and uses. It should be understood that in all these drawings, the same or similar reference numerals indicate the same or similar parts and features. Each drawing only schematically shows the concept and principle of the embodiments of the present disclosure, and does not necessarily show the specific dimensions and their ratios of the various embodiments of the present disclosure. In a specific part of a specific drawing, the relevant details or structures of the embodiments of the present disclosure may be illustrated in an exaggerated manner. The disclosures of various publications, patents, and published patent specifications cited herein are incorporated herein by reference in their entirety. Hereinafter, in conjunction with the embodiments of the present utility model, the technical solutions of the present utility model will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present utility model.

[0028] Embodiment, a preferred technical solution of a heat insulation structure for an observation window of a baking tunnel furnace, includes the following:

[0029] Refer to the attached Figure 1 As shown; it includes a tunnel furnace device 1, 2 - 5 equally spaced observation ports 4 are opened on the front surface of the tunnel furnace device 1, an observation window frame mechanism 3 arranged in the inner cavity of the observation port 4, and an observation window mechanism 2 connected to the front end surface of the observation window frame mechanism 3; Refer to the attached Figure 3 As shown; the observation window mechanism 2 includes a window door 21 blocked at the front end port position of the observation port 4, a longitudinal slide rail 27 longitudinally arranged and fixed above the front end port of the observation port 4, and a longitudinal slider 28 slidably arranged on the track of the longitudinal slide rail 27. And a horizontally arranged transverse slide rail 25 is fixed on the bottom surface of the longitudinal slider 28, and a transverse slider 26 fixed to the top surface of the window door 21 is slidably arranged on the track of the transverse slide rail 25; A servo electric cylinder 24 is fixed to the front section of the upper surface of the longitudinal slide rail 27, and the telescopic shaft of the servo electric cylinder 24 is fixedly connected to the top surface of the longitudinal slider 28.

[0030] Refer to the attached Figure 4 As shown; the observation window frame mechanism 3 includes a window frame 31 fixed in the inner cavity of the observation port 4, a rectangular frame 33 bolted to the rear side surface of the window door 21, and a ring of polytetrafluoroethylene sealing ring 32 wrapped on the outer surface of the rectangular frame 33; Among them, a partition 35 is fixed to the rear side surface of the rectangular frame 33, and an opening is provided on each of the four edges of the rectangular frame 33; Refer to the attached Figure 5 As shown; two elastic support structures 34 arranged vertically and horizontally are provided in the inner cavity of the rectangular frame 33; The elastic support structure 34 includes two lining plates 341, four sleeves 342 fixed to the mutually adjacent side surfaces of the lining plates 341, and a triangular spring 344 is fixed inside each of the sleeves 342, and a movable column 343 is inserted into the mutually adjacent end ports of the sleeves 342.

[0031] Refer to the attached drawings of the specification Figure 3 As shown; a handle 22 is fixed to the right side of the front surface of the window door 21, a connecting plate 23 is fixed to the top surface of the window door 21, and the top end of the connecting plate 23 is fixedly connected to the bottom surface of the transverse slider 26; a convex strip is fixed to the periphery of the front surface of the rectangular frame 33, and 3-5 bolts are respectively arranged through the convex strip. The front end of the bolt is fixedly connected to the rear surface of the window door 21, and a nut is locked on the rear end section of the bolt. Moreover, strip-shaped through holes are respectively formed on the convex strips for the plate members around the rectangular frame 33 to move.

[0032] Refer to the attached drawings of the specification Figure 4 As shown; the front and rear end faces of the window frame 31 communicate with each other, and a high-temperature resistant tempered glass is inlaid and fixed in the rear port of the window frame 31. The outer periphery of the partition plate 35 is respectively fixedly connected to the rear side wall of the inner cavity of the rectangular frame 33, and a layer of heat-insulating felt is fixed on the front surface of the partition plate 35. The inner side wall of the inner ring of the polytetrafluoroethylene sealing ring 32 is fixedly connected to the outer side wall of the rectangular frame 33, and the outer surface of the outer ring of the polytetrafluoroethylene sealing ring 32 is in close contact with the inner side wall of the window frame 31.

[0033] Refer to the attached drawings of the specification Figure 4 As shown; the four openings at the corner edges of the rectangular frame 33 are used for the plates around the rectangular frame 33 to move outwards or inwards, so as to support and tighten the contact firmness between the polytetrafluoroethylene sealing ring 32 and the window frame 31. The two elastic support structures 34 are arranged in a cross in the inner cavity of the rectangular frame 33, and the two elastic support structures 34 do not contact each other, and are used to provide elastic support for the plates on the left and right sides and the upper and lower sides of the rectangular frame 33.

[0034] According to the above-mentioned preferred technical solution, the working process of this technical solution is described as follows:

[0035] After the telescopic shaft of the servo electric cylinder 24 pulls the longitudinal slider 28 to move from the rear section to the front section of the longitudinal slide rail 27, the transverse slider 26, the transverse slide rail 25 and the partition plate 21 will be pulled to move from the rear to the front, and the rectangular frame 33 and the polytetrafluoroethylene sealing ring 32 will also be pulled out of the observation port 4 by the partition plate 21. At this time, the partition plate 21 is moved to the left along the transverse track of the transverse slide rail 25 through the handle 22, so as to completely expose the observation port 4 for observation operation.

[0036] Similarly, with the assistance of the cross slide table composed of two tracks, the baffle plate 21 drives the observation window frame mechanism 3 to re-block the observation port 4. After the baffle plate 21 pushes the rectangular frame 33 to move inside the window frame 31, due to the outward expansion of the four plates around the rectangular frame 33 and the triangular springs 344 between the sleeves 342 forcing the lining plates 341 to support the four plates around the rectangular frame 33 in the up and down and left and right directions, the polytetrafluoroethylene sealing ring 32 is squeezed from the inside, thereby increasing the contact force with the inner cavity of the window frame 31 and reducing the clearance between the window frame 31 and the rectangular frame 33.

[0037] Only some exemplary embodiments of the present invention have been described by way of illustration. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A heat insulation structure for an observation window of a baking tunnel furnace, comprising a tunnel furnace device (1), characterized in that: The front surface of the tunnel furnace device (1) is provided with 2 - 5 equally spaced observation ports (4), an observation window frame mechanism (3) arranged in the inner cavity of the observation port (4), and an observation window mechanism (2) connected to the front end surface of the observation window frame mechanism (3); The observation window mechanism (2) includes a window door (21) blocking the front end port position of the observation port (4), a longitudinal slide rail (27) longitudinally arranged and fixed above the front end port of the observation port (4), and a longitudinal slider (28) slidably arranged on the track of the longitudinal slide rail (27). The bottom surface of the longitudinal slider (28) is fixed with a laterally arranged transverse slide rail (25), and a transverse slider (26) fixed to the top surface of the window door (21) is slidably arranged on the track of the transverse slide rail (25); The observation window frame mechanism (3) includes a window frame (31) fixed in the inner cavity of the observation port (4), a rectangular frame (33) bolt - connected to the rear side surface of the window door (21), and a circle of polytetrafluoroethylene sealing rings (32) wrapped on the outer surface of the rectangular frame (33); wherein, a partition board (35) is fixed to the rear side surface of the rectangular frame (33), and openings are provided on all four edges of the rectangular frame (33); two elastic support structures (34) arranged vertically and horizontally are provided in the inner cavity of the rectangular frame (33); The elastic support structure (34) includes two lining boards (341), four sleeves (342) fixed on the mutually - close - side surfaces of the lining boards (341), a triangular spring (344) fixed inside each sleeve (342), and a movable column (343) inserted into the mutually - close - end ports of the sleeves (342).

2. The thermal insulation structure for the observation window of a baking tunnel furnace according to claim 1, characterized in that: A handle (22) is fixed to the right side of the front surface of the window door (21), a connecting plate (23) is fixed to the top surface of the window door (21), and the top end of the connecting plate (23) is fixedly connected to the bottom surface of the transverse slider (26).

3. The thermal insulation structure for the observation window of a baking tunnel furnace according to claim 1, wherein: The front and rear end faces of the window frame (31) are mutually penetrated, and a high - temperature resistant tempered glass is inlaid and fixed in the rear - side port of the window frame (31).

4. The thermal insulation structure for the observation window of a baking tunnel furnace according to claim 1, characterized in that: The outer - surface periphery of the partition board (35) is respectively fixedly connected to the rear - side side walls of the inner cavity of the rectangular frame (33), and a layer of heat - insulating felt cloth is fixed to the front - side surface of the partition board (35).

5. The thermal insulation structure for the observation window of a baking tunnel furnace according to claim 1, characterized in that: The inner - circle side wall of the polytetrafluoroethylene sealing ring (32) is fixedly connected to the outer - surface side wall of the rectangular frame (33), and the outer - circle surface of the polytetrafluoroethylene sealing ring (32) is in close contact with the inner - cavity side wall of the window frame (31).

6. The heat insulation structure for the observation window of a baking tunnel furnace according to claim 1, characterized in that: The four openings at the four - corner edge positions of the rectangular frame (33) are used for the plates around the rectangular frame (33) to move outward or inward, thereby supporting and tightening the contact firmness between the polytetrafluoroethylene sealing ring (32) and the window frame (31).

7. The thermal insulation structure for the observation window of a baking tunnel furnace according to claim 1, wherein: A convex strip is fixed to the periphery of the front surface of the rectangular frame (33), 3 - 5 bolts are penetrated through the convex strip, the front ends of the bolts are fixedly connected to the rear - side surface of the window door (21), nuts are locked on the rear - end sections of the bolts, and strip - shaped through - holes are provided on the convex strip for the plate parts around the rectangular frame (33) to move.

8. The thermal insulation structure for the observation window of a baking tunnel furnace according to claim 1, wherein: The two elastic support structures (34) are arranged in a cross shape in the inner cavity of the rectangular frame (33), and the two elastic support structures (34) do not contact each other, and are used to provide elastic support for the plates on the left and right sides and the upper and lower sides of the rectangular frame (33).

9. The thermal insulation structure for the observation window of a baking tunnel furnace according to claim 1, wherein: A servo electric cylinder (24) is fixed to the front section of the upper surface of the longitudinal slide rail (27), and the telescopic shaft of the servo electric cylinder (24) is fixedly connected to the top surface of the longitudinal slider (28).

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