Connector structure facilitating disassembly and assembly of refractory brick mold

Abstract

The utility model discloses a connector structure facilitating disassembly and assembly of a refractory brick mold, and belongs to the technical field of fasteners. A connector structure facilitating disassembly and assembly of a refractory brick mold comprises a bolt, an external thread part is arranged outside the bolt, a bolt cover is arranged at the tail of the bolt, a bolt counter bore with an opening facing the bolt is formed in the bolt cover, and an internal thread part meshed with the external thread part is arranged in the bolt counter bore. The open end of the bolt counter bore abuts against the side wall of the clamping block. The utility model has the advantages that the bolt cover and the bolt are prevented from being rusted and blocked, and the bolt cover and the bolt are convenient to disassemble and assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener technical field especially relates to a joint structure convenient to firebrick mould dismounting. BACKGROUND

[0002] The firebrick forming press is the main equipment for producing firebricks, which mainly presses the fireproof material poured into the firebrick mould into a brick blank through a hydraulic device for subsequent drying and high-temperature firing into firebricks.

[0003] The firebrick mould is divided into an upper mould and a lower mould, the upper mould is installed at the working end of the hydraulic system and is pressed into the lower mould from top to bottom, and the lower mould is installed on the base with a lifting structure, and the brick blank is ejected from the lower mould by the lifting structure after the fireproof material in the lower mould is pressed into a brick blank by the upper mould.

[0004] The existing base of the hydraulic machine and the mould installation effect are shown in the accompanying drawings Figure 5 As shown, two clamping blocks are connected together through bolts and clamp the lower mould from both sides and are fixedly installed on the base. In the operation process, workers often sweep the excess fireproof material from the edge of the lower mould to the position around the clamping block, covering the bolt nut. The utility model discloses a joint structure convenient to firebrick mould dismounting.

[0005] The utility model discloses a joint structure convenient to firebrick mould dismounting.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A joint structure convenient to firebrick mould dismounting, including the bolt, the outside of the bolt is provided with the outer thread part, the tail of the bolt is provided with the bolt cover, the inside of the bolt cover is equipped with the bolt counterbore with the opening to the bolt, the inside of the bolt counterbore is provided with the inner thread part and is engaged with the outer thread part, and the one end of the bolt counterbore opening is in abutment with the side wall of the clamping block.

[0008] Further, the bolt countersunk hole is internally provided with a first circular groove near one end of the opening, and the inner diameter of the first circular groove is larger than the outer diameter of the bolt.

[0009] Further, the bolt countersunk hole is internally provided with a second circular groove away from one end of the opening, and the inner diameter of the second circular groove is larger than the outer diameter of the bolt.

[0010] Further, the bolt countersunk hole is internally provided with a space between the end away from the opening and the tail of the bolt.

[0011] Further, the radial length of the external thread part is larger than the radial length of the internal thread part.

[0012] Further, the outer part of the bolt cover is a hexagonal prism structure.

[0013] Further, the bolt cover is internally provided with a ring-shaped convex edge near one end of the clamp block, and the convex edge is internally provided with a sealing ring near the end face of the clamp block.

[0014] Further, the bolt cover is internally provided with a ring-shaped convex edge near one end of the clamp block, and the convex edge is internally provided with a sealing ring near the end face of the clamp block.

[0015] Compared with the prior art, the joint structure of the utility model provides the following beneficial effects:

[0016] The joint structure of the utility model is convenient for disassembling and assembling the refractory brick mold, and has the following beneficial effects.

[0017] Other advantages, objects and features of the utility model will be described in the subsequent description; and to some extent, based on the study of the following text, it will be obvious to those skilled in the art; or, it can be taught from the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic view of the overall structure of the utility model;

[0019] Figure 2A partial sectional view of a bolt groove structure of the utility model is shown in the figure.

[0020] Figure 3 A bolt cover structure of the utility model is shown in the figure. Figure 2 An enlarged schematic view of the structure of part A is shown in the figure.

[0021] Figure 4 A bolt cover structure of the utility model is shown in the figure.

[0022] Figure 5 A schematic view of the mounting effect of a bolt and a nut in the prior art is shown in the figure.

[0023] In the figure,

[0024] 1, lower mold; 2, clamp block; 3, bolt; 301, external thread part; 4, bolt cover; 401, bolt counterbore; 402, first circular groove; 403, second circular groove; 404, internal thread part; 405, convex edge; 406, sealing ring; 5, bolt groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0026] Referring to Figures 1-5 , the utility model discloses a joint structure convenient for the dismounting of refractory brick molds, comprising a bolt 3, the external thread part 301 is processed on the outside of the bolt 3, the bolt cover 4 is installed at the tail of the bolt 3, the bolt counterbore 401 that the opening of the bolt cover 4 is set up is towards the bolt 3, the internal thread part 404 is processed in the inside of the bolt counterbore 401 and is engaged with the external thread part 301, and the end of the bolt counterbore 401 opening is abutted with the side wall of the clamp block 2.

[0027] In the prior art, two clamp blocks 2 are installed on the base of the press, the lower mold 1 is installed in the middle of the two clamp blocks 2, the two clamp blocks 2 clamp the lower mold 1, the lower mold 1 is fixedly installed on the base, the two clamp blocks 2 are fastened together through four bolts 3, and the specific embodiment is shown in the figure. Figure 5 In the present application, the bolt 3 is composed of a screw rod and a six-prong block at the head, the head of the bolt 3 is located at the rear of the clamp block 2, the end of the bolt 3 away from the head is the tail, and the tail of the bolt 3 faces the front of the clamp block 2.

[0028] When the bolt cover 4 is screwed onto the bolt 3, the end of the bolt cover 4 close to the opening is abutted with the side wall of the clamp block 2, so that the two clamp blocks 2 are tensioned, and the lower mold 1 is fixed in the middle of the two clamp blocks 2.

[0029] Because one end of the bolt cover 4 is in abutment with the side wall of the clamp block 2 and the other end is a closed structure, the inside of the bolt counterbore 401 can form a closed space, avoiding the entry of external refractory material, thereby avoiding rust and jamming of the internal thread part 404 and the external thread part 301, and facilitating disassembly.

[0030] The first circular groove 402 is machined at one end of the inside of the bolt counterbore 401 close to the opening, the inner diameter size of the first circular groove 402 is greater than the outer diameter size of the bolt 3, and the first circular groove 402 is a coaxial structure with the bolt counterbore 401 and the bolt 3, so that an annular space gap is formed between the inner wall of the first circular groove 402 and the outer wall of the bolt 3. Even if a small amount of refractory material seeps into the bolt counterbore 401 from the opening, it will deposit in the first circular groove 402 and will not directly fill the gap between the bolt counterbore 401 and the bolt 3 to cause jamming.

[0031] The second circular groove 403 is machined at one end of the inside of the bolt counterbore 401 away from the opening, the inner diameter size of the second circular groove 403 is greater than the outer diameter size of the bolt 3, and the internal thread part 404 is located between the first circular groove 402 and the second circular groove 403. The second circular groove 403 cooperates with the first circular groove 402 to control the axial length of the internal thread part 404 within a suitable range, so as to avoid excessive length causing difficulty in screwing and excessive time in screwing, and facilitate disassembly.

[0032] The reasonable range here refers to that, according to the actual situation, when a bolt 3 of a suitable specification and model is selected, the axial length of the internal thread part 404 is determined according to the specification and model of the bolt 3, so that the axial length of the internal thread part 404 is the same as the axial length of the standard nut matched with the bolt 3, thereby avoiding excessive axial length of the internal thread part 404 causing difficulty in screwing or insufficient structural strength due to excessive shortness of the internal thread part 404 while meeting the structural strength.

[0033] The radial length of the external thread part 301 is greater than the radial length of the internal thread part 404, so that the external thread part 301 and the internal thread part 404 can be fully engaged to ensure the structural strength of the threaded connection when the internal thread part 404 has a standard length.

[0034] The outside of the bolt cover 4 is a hexagonal prism structure, and specifically, the outer diameter size of the hexagonal prism structure is the same as the outer diameter size of the nut matched with the bolt 3, so as to facilitate the use of an ordinary wrench to disassemble the bolt cover 4.

[0035] The bolt cover 4 is integrally formed with a ring-shaped protrusion 405 at one end close to the clamp block 2, and a sealing ring 406 is installed on the end face of the protrusion 405 close to the clamp block 2, further improving the sealing effect of the opening end of the bolt counterbore 401.

[0036] The structure also comprises a bolt groove 5 opened on the clamp block 2, the bolt cover 4 is located inside the bolt groove 5, the inner diameter size of the bolt groove 5 is larger than the outer diameter size of the bolt cover 4, so as to avoid that the tail of the bolt 3 and the bolt cover 4 are directly exposed outside the clamp block 2, thereby reducing the case that the refractory material directly falls on the bolt cover 4, and avoiding that the bolt cover 4 is blocked and stuck.

[0037] Working principle: when in use, the bolt cover 4 is screwed on the tail of the bolt 3, so that the bolt cover 4 abuts against the side wall of the clamp block 2. During use, the refractory material is avoided from directly falling on the bolt cover 4 through the bolt groove 5, even if a small amount of refractory material enters the inside of the bolt groove 5, the convex edge 405 and the sealing ring 406 can effectively prevent the refractory material from entering the inside of the bolt counterbore 401. At the same time, the inner thread part 404 and the outer thread part 301 are fully engaged, which can provide sufficient connection strength and meet the use requirements.

[0038] The above describes only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

[0039] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0040] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A joint structure for facilitating the assembly and disassembly of a refractory brick mold, comprising a bolt (3), an external thread portion (301) being provided on the outside of the bolt (3), characterized in that, The tail of the bolt (3) is provided with a bolt cover (4), the inside of the bolt cover (4) is provided with a bolt counterbore (401) with an opening towards the bolt (3), the inside of the bolt counterbore (401) is provided with an inner thread part (404) engaged with the outer thread part (301), and the opening end of the bolt counterbore (401) abuts against the side wall of the clamping block (2).

2. A joint structure for facilitating the assembly and disassembly of a refractory brick mold according to claim 1, characterized in that, The inside of the bolt counterbore (401) is provided with a first circular groove (402) close to the opening end, and the inner diameter of the first circular groove (402) is larger than the outer diameter of the bolt (3).

3. A joint structure for facilitating the assembly and disassembly of a refractory brick mold according to claim 2, wherein The inside of the bolt counterbore (401) is provided with a second circular groove (403) far away from the opening end, and the inner diameter of the second circular groove (403) is larger than the outer diameter of the bolt (3).

4. The joint structure according to claim 3, wherein The inside of the bolt counterbore (401) is provided with a space between the opening end and the tail of the bolt (3).

5. A joint structure for facilitating the assembly and disassembly of a refractory brick mold according to claim 4, wherein The radial length of the outer thread part (301) is larger than the radial length of the inner thread part (404).

6. The joint structure according to claim 1, wherein The outside of the bolt cover (4) is a hexagonal prism structure.

7. The joint structure according to claim 1, wherein The end of the bolt cover (4) close to the clamping block (2) is provided with an annular protruding edge (405), and the end face of the protruding edge (405) close to the clamping block (2) is provided with a sealing ring (406).

8. The joint structure according to claim 1, wherein The bolt cover (4) is located inside the bolt groove (5) opened on the clamping block (2).

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