Refrigerating system structure of low-temperature tunnel furnace

Abstract

The utility model provides a low-temperature tunnel furnace refrigerating system structure which comprises a refrigerating box, the refrigerating box is located on one side of a furnace body, the refrigerating box and the furnace body are both arranged on a conveying belt, the conveying belt is arranged on a supporting frame, and air channels are formed in the inner walls of the two sides of the refrigerating box. Compared with the prior art, the connecting device has the following beneficial effects that through the design of the connecting mechanism, when an air conveying pipeline is connected, the connecting inner pipe is inserted into the communicating hole II, the inserting plates are respectively inserted into the inserting grooves, and then the connecting outer pipe is rotated, so that the clamping blocks and the limiting blocks on the inserting plates rotate to the same horizontal line; a positioning block on a clamping block is aligned with a positioning groove in a limiting block, at the moment, a connecting outer pipe is loosened, and a sliding ring pushes an inserting plate to move under the action that a spring pushes the sliding ring, so that the clamping block and the limiting block are extruded together, the positioning block is clamped in the positioning groove, and at the moment, the air conveying pipeline is connected with a second communicating hole.

Description

Technical Field

[0001] The utility model discloses a low-temperature tunnel furnace refrigeration system structure, belonging to the field of tunnel furnace refrigeration equipment. Background Art

[0002] The tunnel oven is a tunnel-type mechanical equipment that bakes food through heat conduction, convection and radiation. There is a continuously operating conveying system in the tunnel. When the food is baked, the food moves relative to the electric heating element or direct-burning combustion rod through the conveyor chain plate, steel belt or mesh belt, thereby completing the work of uniform baking and conveying. This type of oven can produce continuously, has high production efficiency, saves manpower, and has stable baking quality.

[0003] Tunnel furnaces are characterized by large-scale continuous or intermittent baking, but existing processing tunnel furnaces lack a cooling function. After the product is baked, it cannot be cooled quickly, which will affect subsequent processing and make it inconvenient for operators to quickly retrieve materials, reducing the practicality of the tunnel furnace. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a low-temperature tunnel furnace refrigeration system structure.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A low-temperature tunnel furnace refrigeration system structure comprises a refrigeration box, wherein the refrigeration box is located on one side of a furnace body, the refrigeration box and the furnace body are both arranged on a conveyor belt, the conveyor belt is arranged on a support frame, air ducts are provided on the inner walls on both sides of the refrigeration box, a refrigerator and a fan are provided on the top of the refrigeration box, the two ends of the fan are respectively connected to the refrigerator and an air supply hood, two air supply pipes are connected to the air supply hood, the ends of the air supply pipes are connected to the air ducts, an air outlet connected to the inside of the refrigeration box is provided on the air duct, and the two ends of the air supply pipes are connected and fixed to the air supply hood and the refrigeration box by a connecting mechanism.

[0007] Furthermore, the connecting mechanism includes a connecting outer tube, a connecting hole 1 is opened in the middle of the connecting outer tube, the end of the air supply duct is connected and fixed to the connecting outer tube, the air supply duct is connected and penetrated with an opening on one side of the connecting hole 1, the connecting outer tube is connected to a connecting inner tube at one end away from the air supply duct, and the connecting inner tube is connected and penetrated with an opening on the other side of the connecting hole 1.

[0008] Furthermore, a plurality of plug-in boards are evenly arranged on the outer side of the connecting inner tube, one end of the plug-in board is connected and fixed to the connecting outer tube, and a clamping block is fixed on the outer surface of the other end of the plug-in board.

[0009] Furthermore, the connecting mechanism also includes a second connecting hole, an annular inner cavity is provided on the outer side of the second connecting hole, a plurality of plug-in grooves are evenly opened on one side of the annular inner cavity, a sliding ring is slidably connected inside the annular inner cavity, a plurality of springs are provided between the sliding ring and the inner wall of the annular inner cavity, and a limiting block is fixed inside the plug-in groove close to one side of the annular inner cavity.

[0010] Furthermore, the connecting inner tube passes through the inside of the second communicating hole, the plug-in plate with the clamping block passes through the plug-in slot, the end of the plug-in plate passes through the annular inner cavity and is squeezed together with the sliding ring, and the clamping block is squeezed together with the limit block.

[0011] Furthermore, a positioning block is fixed at the center of one side of the clamping block close to the connecting outer tube, and a positioning groove is formed at the center of one side of the limiting block close to the annular inner cavity, and the positioning block is clamped together with the positioning groove.

[0012] Furthermore, the second communicating hole and the annular inner cavity on the two connecting mechanisms are respectively provided on the air supply hood and the refrigeration box.

[0013] Furthermore, a sealing gasket is provided inside the second communicating hole, and the connecting inner tube and the sealing gasket are squeezed together.

[0014] Beneficial effects of the utility model:

[0015] Through the design of the connecting mechanism, when connecting the air supply duct, the connecting inner tube is plugged into the second connecting hole, and several plug-in plates are respectively plugged into several plug-in grooves. At this time, the end of the plug-in plate will penetrate into the annular inner cavity and squeeze the sliding ring, and then the connecting outer tube is rotated to make the clamping block and the limit block on the plug-in plate rotate to the same horizontal line, and the positioning block on the clamping block is aligned with the positioning groove on the limit block. At this time, the connecting outer tube is released, and under the action of the spring pushing the sliding ring, the sliding ring pushes the plug-in plate to move, so that the clamping block and the limit block are squeezed together, and the positioning block is clamped in the positioning groove. At this time, the air supply duct is connected with the second connecting hole.

[0016] Through the design of the sealing gasket, the gap between the air duct and the second communicating hole is filled by the sealing gasket, thereby achieving a sealed connection between the air duct and the second communicating hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a low-temperature tunnel furnace refrigeration system structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection mechanism structure of a low-temperature tunnel furnace refrigeration system structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the local structure of the connection mechanism of a low-temperature tunnel furnace refrigeration system structure of the utility model Figure 1 ;

[0021] Figure 4 This is a schematic diagram of a limit block structure of a low-temperature tunnel furnace refrigeration system structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the local structure of the connection mechanism of a low-temperature tunnel furnace refrigeration system structure of the utility model Figure 2 ;

[0023] Figure 6 The utility model is a schematic diagram of a sliding ring and a spring connection structure of a low-temperature tunnel furnace refrigeration system structure.

[0024] In the figure, 1, support frame; 2, conveyor belt; 3, furnace body; 4, refrigeration box; 5, refrigerator; 6, fan; 7, air hood; 8, air duct; 9, connecting outer pipe; 10, connecting hole one; 11, connecting inner pipe; 12, plug-in plate; 13, clamping block; 14, positioning block; 15, connecting hole two; 16, sealing gasket; 17, plug-in slot; 18, limit block; 19, sliding ring; 20, spring; 21, positioning slot. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1 one Figure 6The utility model provides a technical solution for the structure of a low-temperature tunnel furnace refrigeration system, including a refrigeration box 4, the refrigeration box 4 is located on one side of a furnace body 3, the refrigeration box 4 and the furnace body 3 are both arranged on a conveyor belt 2, the conveyor belt 2 is arranged on a support frame 1, air ducts are opened on the inner walls of both sides of the refrigeration box 4, a refrigerator 5 and a fan 6 are arranged on the top of the refrigeration box 4, the two ends of the fan 6 are respectively connected to the refrigerator 5 and an air supply hood 7, the air supply hood 7 is connected to two air supply pipes 8, and the ends of the air supply pipes 8 are connected to the air ducts, The air duct is provided with an air outlet connected to the interior of the refrigerating box 4, and both ends of the air supply duct 8 are connected and fixed to the air supply hood 7 and the refrigerating box 4 by a connecting mechanism; when in use, the product and the baking tray are placed on the conveyor belt 2, and the conveyor belt 2 transports the baking tray to the interior of the furnace body 3 for baking. The baked product will enter the refrigerating box 4, and then, the cold air will be transported to the interior of the refrigerating box 4 through the refrigerator 5, the fan 6 and the air supply duct 8, so as to cool the baked product and facilitate the workers to take out the product.

[0027] See also Figure 2-Figure 3The connecting mechanism includes a connecting outer tube 9, a connecting hole 10 is opened in the middle of the connecting outer tube 9, the end of the air delivery duct 8 is connected and fixed to the connecting outer tube 9, the air delivery duct 8 is connected and penetrated with an opening on one side of the connecting hole 10, the connecting outer tube 9 is connected to a connecting inner tube 11 at one end away from the air delivery duct 8, the connecting inner tube 11 is connected and penetrated with an opening on the other side of the connecting hole 10, and a plurality of plug-in boards 12 are evenly arranged on the outside of the connecting inner tube 11, one end of the plug-in board 12 is connected to the connecting outer tube 9 The outer surface of the other end of the plug-in board 12 is fixed with a card block 13, and the connecting mechanism also includes a second communicating hole 15, and the outer side of the second communicating hole 15 is provided with an annular inner cavity, and a plurality of plug-in grooves 17 are evenly opened on one side of the annular inner cavity, and a sliding ring 19 is slidably connected inside the annular inner cavity, and a plurality of springs 20 are arranged between the sliding ring 19 and the inner wall of the annular inner cavity, and a limited block 18 is fixed inside the plug-in groove 17 near one side of the annular inner cavity, and the connecting inner tube 11 penetrates into the second communicating hole 15, and the plug-in groove 19 is provided with a card block 13, and the connecting mechanism also includes a second communicating hole 15, and the connecting hole 15 is provided with an annular inner cavity. The connecting plate 12 with the clamping block 13 penetrates into the plug-in groove 17, the end of the plug-in plate 12 penetrates into the annular inner cavity and is squeezed together with the sliding ring 19, the clamping block 13 is squeezed together with the limit block 18, and the two connecting holes 15 and the annular inner cavity on the two connecting mechanisms are respectively opened on the air supply hood 7 and the refrigeration box 4; through the design of the connecting mechanism, when connecting the air supply duct 8, the connecting inner tube 11 is plugged into the connecting hole 15, and a plurality of plug-in plates 12 are respectively plugged into a plurality of The end of the plug-in plate 12 will penetrate into the annular inner cavity and squeeze the sliding ring 19, and then the outer tube 9 will be rotated to connect, so that the clamping block 13 and the limit block 18 on the plug-in plate 12 are rotated to the same horizontal line, and the positioning block 14 on the clamping block 13 is aligned with the positioning groove 21 on the limit block 18. At this time, the outer tube 9 is released, and under the action of the spring 20 pushing the sliding ring 19, the sliding ring 19 pushes the plug-in plate 12 to move, so that the clamping block 13 and the limit block 18 are squeezed together. At this time, the air duct 8 is connected with the connecting hole 15.

[0028] See also Figure 3 and Figure 4 A positioning block 14 is fixed at the center of one side of the clamping block 13 close to the connecting outer tube 9, and a positioning groove 21 is provided at the center of one side of the limiting block 18 close to the annular inner cavity, and the positioning block 14 is clamped together with the positioning groove 21; through the design of the positioning block 14 and the positioning groove 21, when the clamping block 13 and the limiting block 18 are squeezed together, the positioning block 14 is clamped in the positioning groove 21, thereby improving the stability between the connecting outer tube 9 and the second connecting hole 15.

[0029] See also Figure 5A sealing gasket 16 is provided inside the second connecting hole 15, and the connecting inner tube 11 and the sealing gasket 16 are squeezed together; through the design of the sealing gasket 16, the gap between the air duct 8 and the second connecting hole 15 will be filled by the sealing gasket 16, thereby making the air duct 8 and the second connecting hole 15 sealed and connected.

[0030] When in use, the product and the baking tray are placed on the conveyor belt 2, and the conveyor belt 2 transports the baking tray to the inside of the furnace body 3 for baking. The baked product will enter the refrigeration box 4, and then the cold air will be transported to the refrigeration box 4 through the refrigerator 5, the fan 6 and the air delivery duct 8, so as to cool the baked product and facilitate the workers to take out the product.

[0031] During long-term use, because the low-temperature gas is always transported to the air duct inside the refrigeration box 4 through the air duct 8, the low-temperature gas will make the material of the air duct 8 brittle under the action of the long-term flow of the low-temperature gas, resulting in a decrease in the strength of the air duct 8, thereby accelerating the aging and cracking of the air duct 8. In addition, the low-temperature environment will cause frost on the surface of the air duct 8, resulting in damage to the air duct 8. Therefore, the air duct 8 needs to be replaced regularly. At this time, the air duct 8 can be quickly replaced through the connecting mechanism;

[0032] The specific operation process of the connecting mechanism is as follows: when the air supply duct 8 needs to be disassembled, the connecting outer tube 9 is pushed, and the connecting outer tube 9 will drive the connecting inner tube 11 to move toward the annular inner cavity, and the connecting inner tube 11 will squeeze the sliding ring 19, so that the positioning block 14 on the clamping block 13 is disengaged from the positioning groove 21 on the limit block 18, and then, the connecting outer tube 9 is rotated to make the clamping block 13 on the plug-in plate 12 rotate and disengage from the fixed limit block 18, at this time, the connecting inner tube 11 and the plug-in plate 12 can be taken out from the connecting hole 15 and the plug-in groove 17.

[0033] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A low-temperature tunnel furnace refrigeration system structure, characterized in that: The invention comprises a refrigeration box (4), wherein the refrigeration box (4) is located on one side of a furnace body (3), the refrigeration box (4) and the furnace body (3) are both arranged on a conveyor belt (2), the conveyor belt (2) is arranged on a support frame (1), air ducts are provided on the inner walls on both sides of the refrigeration box (4), a refrigeration machine (5) and a fan (6) are provided on the top of the refrigeration box (4), the two ends of the fan (6) are respectively connected to the refrigeration machine (5) and an air supply hood (7), the air supply hood (7) is connected to two air supply pipes (8), the ends of the air supply pipes (8) are connected to the air ducts, the air ducts are provided with air outlets connected to the inside of the refrigeration box (4), and the two ends of the air supply pipes (8) are connected and fixed to the air supply hood (7) and the refrigeration box (4) through a connecting mechanism.

2. A low-temperature tunnel furnace refrigeration system structure according to claim 1, characterized in that: The connecting mechanism comprises an outer connecting tube (9), a connecting hole (10) is provided in the middle of the outer connecting tube (9), the end of the air supply pipe (8) is connected and fixed to the outer connecting tube (9), the air supply pipe (8) is connected and penetrated with an opening on one side of the connecting hole (10), and an inner connecting tube (11) is connected to an end of the outer connecting tube (9) away from the air supply pipe (8), and the inner connecting tube (11) is connected and penetrated with an opening on the other side of the connecting hole (10).

3. A low-temperature tunnel furnace refrigeration system structure according to claim 2, characterized in that: A plurality of plug-in plates (12) are evenly arranged on the outside of the connecting inner tube (11), one end of the plug-in plate (12) is connected and fixed to the connecting outer tube (9), and a clamping block (13) is fixed on the outer surface of the other end of the plug-in plate (12).

4. A low-temperature tunnel furnace refrigeration system structure according to claim 3, characterized in that: The connection mechanism also includes a second connecting hole (15), an annular inner cavity is provided on the outer side of the second connecting hole (15), a plurality of plug-in grooves (17) are evenly provided on one side of the annular inner cavity, a sliding ring (19) is slidably connected inside the annular inner cavity, a plurality of springs (20) are provided between the sliding ring (19) and the inner wall of the annular inner cavity, and a limiting block (18) is fixed inside the plug-in groove (17) close to one side of the annular inner cavity.

5. A low-temperature tunnel furnace refrigeration system structure according to claim 4, characterized in that: The connecting inner tube (11) penetrates into the second communicating hole (15), the plug-in plate (12) with the clamping block (13) penetrates into the plug-in groove (17), the end of the plug-in plate (12) penetrates into the annular inner cavity and is squeezed together with the sliding ring (19), and the clamping block (13) is squeezed together with the limit block (18).

6. A low-temperature tunnel furnace refrigeration system structure according to claim 5, characterized in that: A positioning block (14) is fixed to the center of one side of the clamping block (13) close to the connecting outer tube (9), and a positioning groove (21) is formed on the center of one side of the limiting block (18) close to the annular inner cavity, and the positioning block (14) is clamped together with the positioning groove (21).

7. A low-temperature tunnel furnace refrigeration system structure according to claim 6, characterized in that: The second communicating hole (15) and the annular inner cavity on the two connecting mechanisms are respectively provided on the air supply hood (7) and the refrigeration box (4).

8. The low-temperature tunnel furnace refrigeration system structure according to claim 7, characterized in that: A sealing gasket (16) is provided inside the second communicating hole (15), and the connecting inner tube (11) and the sealing gasket (16) are squeezed together.

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