Furnace charging frame for heat treatment box-type furnace

Abstract

The utility model discloses a furnace loading frame for a heat treatment box-type furnace, which relates to the technical field of furnace loading frames and comprises a placing frame, four lifting rings distributed in a rectangular shape are fixedly connected to the positions, close to the left end and the right end, of the front side and the rear side of the placing frame, and four fixing mechanisms distributed in a rectangular shape are fixedly connected to the positions, close to the four corners, of the upper surface of the placing frame. And four inserting holes distributed in a rectangular shape are formed in the positions, close to the four corners, of the lower surface of the containing frame, the inserting holes are located under the fixing mechanism, and pushing blocks are fixedly connected to the upper surfaces of the inner sides of the four inserting holes correspondingly. According to the furnace loading frame for the heat treatment box-type furnace, the fixing mechanisms which are completely identical in shape and position are arranged on the inner wall of the box-type furnace, the insertion holes in the placing frame are aligned with the installation insertion blocks on the inner side of the furnace wall, installation operation is completed, the structure is simple, installation is convenient, meanwhile, components with simple shapes are adopted, and cost is low. And the influence on the service life of the part caused by deformation of the part due to repeated heating and cooling is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace mounting frames, in particular to a furnace mounting frame for a heat treatment box-type furnace. Background Art

[0002] Steel plates are often cut by flame cutting. After flame cutting of No. 45 steel plates, the cut edges need to be normalized to reduce the hardness of the cut surface. After the steel plates are cut, workers first place the steel plates in the truck bed, and then use a forklift to transport them to the heat treatment plant. Then the workers take the steel plates out of the truck bed and place them one by one on the bottom plate of the box furnace. When the steel plates are heated and insulated, the workers drag the bottom of the furnace together with the steel plates out for air cooling. After the steel plates have completely cooled to room temperature, the workers take the steel plates off the bottom plate of the furnace one by one and place them in the truck bed.

[0003] For example, the Chinese patent publication number CN218860806U discloses a furnace loading frame for a heat treatment box furnace, including a support frame, a lifting ring fixedly connected to the top of the support frame, two mounting plates fixedly connected to the bottom of the support frame, positioning blocks fixedly connected to the separated sides of the two mounting plates, a box body fixedly connected to the left and right sides of the support frame, a fixed block fixedly connected to the inside of the two box bodies, and a rotating block rotatably connected to the inside of the two fixed blocks. When the steel plate on the top of the support frame needs to be sent to the heat treatment box furnace for heating, the two positioning blocks are connected to the connecting blocks on the inside of the box furnace, and the two rotating plates are rotated to drive the two threaded rods to rotate inside the two fixed blocks, so that the two sleeves change from rotational motion to up and down movement when the sliding block and the guide rod are slidably connected, and the two fixed rods are extended through the fixed rod holes to the connecting blocks on the inner wall of the box furnace, so as to ensure that the support frame can be fixed more securely when placed in the box furnace.

[0004] The existing technology has the following problems:

[0005] The furnace rack uses some relatively precise components for transmission, such as threaded rods. After repeated heating and cooling, the threaded connections of these components with other components are likely to loosen, making it difficult to continue transmission through the threaded rods, resulting in a reduction in the service life of the entire furnace rack. Utility Model Content

[0006] The utility model provides a furnace mounting frame for a heat treatment box-type furnace to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A furnace loading rack for a heat treatment box furnace comprises a placing rack, wherein four rectangularly distributed hanging rings are fixedly connected to the front and rear sides of the placing rack near the left and right ends, four rectangularly distributed fixing mechanisms are fixedly connected to the upper surface of the placing rack near the four corners, four rectangularly distributed plug holes are opened on the lower surface of the placing rack near the four corners, and the plug holes are located directly below the fixing mechanisms, and push blocks are fixedly connected to the inner upper surfaces of the four plug holes.

[0009] Preferably, the four fixing mechanisms all include a bottom plate, and the lower surface of the bottom plate is fixedly connected to the upper surface of the placement rack near the four corners.

[0010] Preferably, a mounting block is fixedly connected to the top of the base plate, and two movable blocks symmetrically distributed on the left and right are movably sleeved on the inner side of the mounting block. A push groove is provided on the upper surface of the mounting block, and the shape of the push groove is an inverted isosceles trapezoid, and the sides of the movable blocks close to each other are parallel to the sides corresponding to the left and right sides of the inner side of the push groove, and the shape of the push block is consistent with the shape of the push groove.

[0011] Preferably, the ends of the moving blocks that are away from each other are shaped like an isosceles triangle.

[0012] Preferably, the shape of the jack is an inverted isosceles trapezoid.

[0013] Preferably, four inner walls of the installation plug block are provided with sliding grooves, four sides of the two moving blocks are fixedly connected with protrusions, and the outer sides of the protrusions are slidably connected to the inner sides of the sliding grooves.

[0014] Preferably, the lower wall of the mounting block is thicker than the upper wall.

[0015] Preferably, the angle between the upper side of the hanging ring and the front and rear surfaces of the placement rack is less than ninety degrees.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a furnace mounting rack for a heat treatment box furnace, which adopts the cooperation of a placing rack, a fixing mechanism, a bottom plate, a mounting plug, a moving block, a push groove, a slide groove, a protrusion, a socket and a push block. By setting a fixing mechanism with exactly the same shape and position on the inner wall of the box furnace, the socket on the placing rack is aligned with the mounting plug on the inner side of the furnace wall to complete the installation operation. The structure is simple and the installation is convenient. At the same time, the use of components with simple shapes avoids deformation of components due to repeated heating and cooling, which affects the service life of the components.

[0018] 2. The utility model provides a furnace rack for a heat treatment box furnace, which adopts the cooperation of a socket, a placement rack, a lifting ring, a fixing mechanism, a bottom plate and a mounting plug. By arranging the lifting ring on the front and rear sides of the placement rack, it is avoided that when a plurality of furnace racks are stacked together, the components thereon affect the placement of other furnace racks. At the same time, since the mounting plug on the lower side is movably sleeved into the socket on the upper side, the storage of the furnace rack is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure when multiple placement racks of the utility model are stacked together;

[0021] Figure 3 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model;

[0022] Figure 4 This is an enlarged structural diagram of part A of the utility model;

[0023] Figure 5 It is a partial cross-sectional three-dimensional structural schematic diagram of the fixing mechanism of the utility model.

[0024] In the figure: 1, placement rack; 2, lifting ring; 3, fixing mechanism; 31, bottom plate; 32, installation plug-in block; 33, moving block; 34, push groove; 35, slide groove; 36, protrusion; 4, socket; 5, push block. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1-Figure 4 As shown, a furnace mounting rack for a heat treatment box furnace includes a placement rack 1, four rectangularly distributed hanging rings 2 are fixedly connected to the front and rear sides of the placement rack 1 near the left and right ends, four rectangularly distributed fixing mechanisms 3 are fixedly connected to the upper surface of the placement rack 1 near the four corners, four rectangularly distributed plug holes 4 are opened on the lower surface of the placement rack 1 near the four corners, and the plug holes 4 are located directly below the fixing mechanisms 3, and push blocks 5 are fixedly connected to the inner upper surfaces of the four plug holes 4.

[0027] It should be noted that the insertion hole 4 is located directly below the fixing mechanism 3 , so that when a plurality of set furnace racks are stacked, the fixing mechanism 3 on the lower side can be movably sleeved into the insertion hole 4 on the upper side.

[0028] like Figure 1 , Figure 5As shown, the four fixing mechanisms 3 each include a bottom plate 31 , and the lower surface of the bottom plate 31 is fixedly connected to the upper surface of the placement rack 1 near the four corners.

[0029] It should be noted that the bottom plate 31 is used to isolate multiple stacked placement racks 1 so that there are gaps between adjacent placement racks 1, thereby reducing the contact area between two adjacent placement racks 1 above and below, thereby reducing the friction on the lower placement rack 1 when taking and placing the upper placement rack 1, thereby reducing damage to the lower placement rack 1.

[0030] like Figure 4 , Figure 5 As shown, a mounting block 32 is fixedly connected to the top of the bottom plate 31, and two movable blocks 33 symmetrically distributed on the left and right are movably sleeved on the inner side of the mounting block 32. A push groove 34 is provided on the upper surface of the mounting block 32, and the shape of the push groove 34 is an inverted isosceles trapezoid, and the sides of the movable blocks 33 that are close to each other are parallel to the sides corresponding to the left and right sides of the inner side of the push groove 34, and the shape of the push block 5 is consistent with the shape of the push groove 34.

[0031] It should be noted that when the lower mounting plug block 32 is movably sleeved into the upper socket 4, the push block 5 in the socket 4 is movably sleeved into the inner side of the push groove 34, so that it pushes the moving block 33 to move to the left and right sides.

[0032] like Figure 5 As shown, the ends of the moving blocks 33 that are away from each other are shaped like an isosceles triangle.

[0033] It should be noted that the shape and size of the opening of the socket 4 are consistent with the top projection of the installation block 32. The shape of the movable block 33 is such that when the base plate 31 is just inserted into the inner side of the socket 4, the lower edge of the socket 4 pushes the movable block 33 to move inward, making it easier for the installation block 32 to be inserted into the inner side of the socket 4.

[0034] like Figure 4 As shown, the shape of the insertion hole 4 is an inverted isosceles trapezoid.

[0035] It should be noted that the shape of the socket 4 provides redundant space when the moving block 33 moves outward. At the same time, when the furnace rack is removed upward, the inclined surfaces on the left and right sides of the inner side of the socket 4 push the inclined surface on the lower side of the moving block 33, so that it enters the inner side of the installation block 32, thereby facilitating the disassembly of the furnace rack.

[0036] like Figure 5 As shown, the four inner walls of the installation plug block 32 are provided with slide grooves 35 , and the four sides of the two moving blocks 33 are fixedly connected with protrusions 36 , and the outer sides of the protrusions 36 are slidably connected to the inner sides of the slide grooves 35 .

[0037] It should be noted that the slide groove 35 is used to limit the movement of the moving block 33 so that the moving block 33 cannot move out of the inner side of the installation plug block 32 .

[0038] like Figure 5 As shown, the lower wall of the mounting insert 32 is thicker than the upper wall.

[0039] It should be noted that the lower wall of the installation block 32 has a higher thickness so as to raise the position of the moving block 33 so that the moving block 33 reaches a deeper position in the insertion hole 4 .

[0040] like Figure 4 As shown, the angle between the upper side of the hanging ring 2 and the front and rear surfaces of the placement rack 1 is less than ninety degrees.

[0041] It should be noted that the placement of the lifting ring 2 is used to improve the lateral connection strength of the lifting ring 2 to avoid the object on the upper side of the furnace rack being too heavy, which causes the lifting ring 2 to bend and deform when the furnace rack is lifted. At the same time, there are reinforcing ribs between the upper side of the lifting ring 2 and the front and rear sides of the placement rack 1 to improve the connection strength of the upper side of the lifting ring 2.

[0042] The working principle of the utility model is as follows: first, when the installation plug block 32 on the lower side is movably sleeved into the socket 4 on the upper side, the push block 5 in the socket 4 is movably sleeved into the inner side of the push groove 34, so that it pushes the moving block 33 to move to the left and right sides. The shape and size of the opening of the socket 4 are consistent with the top projection of the installation plug block 32. The shape of the moving block 33 causes the lower edge of the socket 4 to push the moving block 33 to move inward when the bottom plate 31 is just inserted into the inner side of the socket 4, so that the installation plug block 32 is conveniently inserted into the inner side of the socket 4. The lower wall of the installation plug block 32 is thicker to raise the position of the moving block 33 so that the moving block 33 reaches a deeper position of the socket 4. By setting a fixing mechanism 3 with exactly the same shape and position on the inner wall of the box furnace, the socket 4 on the placement rack 1 is aligned with the installation plug block 32 on the inner side of the furnace wall to complete the installation operation. The structure is simple and the installation is convenient. At the same time, the use of components with simple shapes can avoid deformation of components caused by repeated heating and cooling, which would affect the service life of the components. Finally, the socket 4 is located directly below the fixing mechanism 3, so that when multiple furnace racks are stacked, the fixing mechanism 3 on the lower side can be movably sleeved into the socket 4 on the upper side. The bottom plate 31 is used to isolate multiple stacked placement racks 1, so that there is a gap between adjacent placement racks 1, so as to reduce the contact area between the upper and lower adjacent placement racks 1, so as to reduce the friction on the lower placement rack 1 when taking and placing the upper placement rack 1, and reduce the damage to the lower placement rack 1. By arranging the lifting ring 2 on the front and rear sides of the placement rack 1, it is avoided that when multiple furnace racks are stacked together, the components on them affect the placement of other furnace racks. At the same time, since the lower mounting block 32 is movably sleeved into the socket 4 on the upper side, the storage of the furnace rack is convenient.

[0043] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A furnace rack for a heat treatment box furnace, comprising a placement rack (1), characterized in that: Four rectangularly distributed hanging rings (2) are fixedly connected to the front and rear sides of the placement rack (1) near the left and right ends; four rectangularly distributed fixing mechanisms (3) are fixedly connected to the upper surface of the placement rack (1) near the four corners; four rectangularly distributed plug holes (4) are provided on the lower surface of the placement rack (1) near the four corners, and the plug holes (4) are located directly below the fixing mechanisms (3); and push blocks (5) are fixedly connected to the inner upper surfaces of the four plug holes (4).

2. The furnace rack for a heat treatment box furnace according to claim 1, characterized in that: The four fixing mechanisms (3) all comprise a bottom plate (31), the lower surface of the bottom plate (31) being fixedly connected to the upper surface of the placement rack (1) at positions close to the four corners.

3. The furnace rack for a heat treatment box furnace according to claim 2, characterized in that: The upper surface of the bottom plate (31) is fixedly connected with a mounting block (32), and two movable blocks (33) symmetrically distributed on the left and right are movably sleeved on the inner side of the mounting block (32). A push groove (34) is provided on the upper surface of the mounting block (32), and the shape of the push groove (34) is an inverted isosceles trapezoid, and the mutually adjacent sides of the movable blocks (33) are parallel to the corresponding sides on the left and right sides of the inner side of the push groove (34), and the shape of the push block (5) is consistent with the shape of the push groove (34).

4. The furnace rack for a heat treatment box furnace according to claim 3, characterized in that: The ends of the moving blocks (33) that are away from each other are shaped like an isosceles triangle.

5. The furnace rack for a heat treatment box furnace according to claim 1, characterized in that: The shape of the insertion hole (4) is an inverted isosceles trapezoid.

6. The furnace rack for a heat treatment box furnace according to claim 3, characterized in that: The four inner walls of the installation plug block (32) are provided with sliding grooves (35), and the four sides of the two moving blocks (33) are fixedly connected with protrusions (36), and the outer sides of the protrusions (36) are slidably connected to the inner sides of the sliding grooves (35).

7. The furnace rack for a heat treatment box furnace according to claim 3, characterized in that: The lower wall of the mounting plug (32) is thicker than the upper wall.

8. The furnace rack for a heat treatment box furnace according to claim 1, characterized in that: The angle between the upper side of the hanging ring (2) and the front and rear surfaces of the placement rack (1) is less than ninety degrees.

Images