Plug-in length-adjustable y-shaped anchor nail and heating furnace with same

Abstract

This utility model relates to the field of heating furnace technology, specifically to a pluggable, adjustable-length Y-shaped anchor bolt and a heating furnace incorporating it. The furnace includes a furnace wall, a backing layer, and a cast-in-place layer. The backing layer adheres to the inner wall of the furnace wall, and the cast-in-place layer adheres to the backing layer. The Y-shaped anchor bolt includes a straight bolt section and a V-bolt section. The V-bolt section includes two or more inclined arm segments, with the ends of each arm segment connected via a transition section. The straight bolt section includes an insert and an extension tube. The rear end of the insert is fixed to the transition section and extends away from the arm segment. A stop structure is provided between the insert and the extension tube to allow the insert to be inserted into the extension tube at different degrees and then locked in place, thereby adjusting the distance from the front end of the extension tube to the transition section. The end of the extension tube is fixed to the inner wall of the furnace wall. The V-bolt section abuts against the backing layer, and the arm segments of the V-bolt section extend into the cast-in-place layer. Compared with existing technologies, the installation length of the straight bolt section can be adjusted according to the actual thickness of the backing layer, offsetting the cumulative effect of various errors during construction.

Description

Technical Field

[0001] This utility model relates to the field of heating furnace technology, specifically to a pluggable Y-shaped anchor nail with adjustable length and a heating furnace incorporating it. Background Technology

[0002] To improve thermal efficiency, heating furnaces typically have an insulation structure on their inner walls. This insulation structure consists of a backing layer and a cast-in-place layer. Low-temperature structures may only have a cast-in-place layer. The backing layer can be single-layer, double-layer, triple-layer, quadruple-layer, five-layer, or six-layer. Insulation structures with only a cast-in-place layer are fixed with V-shaped anchor bolts, while those consisting of both a backing layer and a cast-in-place layer are fixed with Y-shaped anchor bolts.

[0003] like Figure 1 As shown, the Y-type anchor includes a straight nail section 1 and a V-nail section 2. The V-nail section 2 includes two or more inclined claw sections 21 embedded in the casting layer 200. The ends of each claw section 21 are connected via a transition section 22. Each claw section 21 and the transition section 22 are integrally bent or welded structures. The end of the straight nail section 1 is fixed to the transition section 22.

[0004] When installing Y-type anchor bolts, first install the straight bolt section 1 on the inner wall of the furnace, then install the backing layer 100 in sequence, with the straight bolt section 1 just passing through the backing layer 100. Next, install the V-bolt section 2, so that the nut welded to the bottom of the V-bolt section 2 just presses against the backing layer 100. Then, install the cast-in-place layer to wrap around the V-bolt section 2, forming a shape like... Figure 1 This is the ideal state.

[0005] The existing Y-type anchor bolts have a fixed straight section 1, which cannot be adjusted in length, resulting in the following problems: In engineering applications, errors often exist, and the cumulative effect of various errors can have a relatively adverse impact.

[0006] If the thickness error of the backing layer is large, or the furnace wall panel is warped, or both are combined, the cumulative error will be relatively large. The anchor length in the existing technology is a fixed value, which cannot eliminate the influence of the cumulative error. This will make the anchor installation difficult and have a significant impact on the on-site construction.

[0007] If the actual thickness of the backing layer 100 is a positive deviation (i.e., the actual thickness is greater than the theoretical thickness), since the length of the straight nail segment 1 is fixed, such as Figure 2 As shown, this will result in insufficient thread length in the straight nail segment 1, making it impossible to effectively install the nut in the V-nail segment 2, leading to installation and fixing difficulties. When the actual thickness of the backing layer 100 has a negative deviation (i.e., the actual thickness is smaller than the theoretical thickness), such as Figure 3 As shown, due to the limitation of the nut, even if all the threads are screwed in, there is still a gap between the backing layer 100 and the nut, making effective installation impossible.

[0008] When the furnace wall panel warps (when it warps inward, the required straight nail segment 1 becomes shorter; when it warps outward, the required straight nail segment 1 becomes longer), similar problems as described above will occur. Utility Model Content

[0009] In view of the above-mentioned technical problems existing in the prior art, this utility model provides a pluggable Y-type anchor nail with adjustable length and a heating furnace thereon, which can offset the accumulation of various errors during construction and increase the applicability of the Y-type anchor nail under different application conditions.

[0010] To achieve the above objectives, this utility model provides the following technical solution: A pluggable, length-adjustable Y-type anchor bolt is provided, comprising a straight bolt section and a V-bolt section. The V-bolt section includes two or more inclined claw segments, the ends of which are connected via a transition section. The straight bolt section includes a post and an extension tube. The rear end of the post is fixed to the transition section and extends away from the claw segment. A stop structure is provided between the post and the extension tube to allow the post to be inserted into the extension tube at different degrees and then locked together for positioning, thereby adjusting the distance from the front end of the extension tube to the transition section.

[0011] As a further alternative, the front end of the insertion post is a triangular shape with a reduced diameter.

[0012] As a further optional solution, the stop structure includes multiple positioning holes provided on the side wall of the extension tube and an elastic positioning clip provided on the outer wall of the insertion post. The multiple positioning holes are arranged separately along the length direction of the extension tube, and the positioning clip can be inserted into different positioning holes and locked.

[0013] As a further alternative, the positioning hole is an oblique hole with its outer port facing backward. Moving the insertion post axially forward allows the positioning card to disengage from the positioning hole, while moving the insertion post axially backward is prevented.

[0014] As a further alternative, the extension tube has a long strip-shaped retraction groove along its length. After the positioning card is disengaged from the positioning hole, external force can rotate the insert to make the positioning card embed into the retraction groove, thus exposing the inner end of the positioning card.

[0015] As a further optional solution, the positioning structure includes a clearance groove disposed on the extension tube, multiple locking grooves, and a positioning pin disposed on the outer wall of the insertion post. The elongated clearance groove is arranged along the axial direction of the extension tube and extends through the rear end of the extension tube; the multiple locking grooves are arranged separately along the axial direction of the extension tube, and each locking groove is arranged circumferentially along the extension tube and extends through the clearance groove; the positioning pin extends out of the extension tube and moves along the clearance groove to align and embed into different clearance grooves, thereby achieving axial positioning of the extension tube and the insertion post.

[0016] As a further alternative, the end of the locking groove away from the relief groove extends axially into the extension tube with a semi-circular hole, into which the positioning pin is inserted to achieve circumferential positioning of the extension tube and the insertion post.

[0017] As a further alternative, the arm claw segment is continuously curved.

[0018] As a further optional solution, a pressure ring is provided at the rear end of the insertion post.

[0019] This utility model also provides a heating furnace with the above-mentioned pluggable length adjustable Y-shaped anchor nail, including a furnace wall, a backing layer and a casting layer. The backing layer is attached to the inner wall of the furnace wall, the casting layer is attached to the backing layer, the end of the extension tube is fixed to the inner wall of the furnace wall, the V-nail section is pressed against the backing layer, and the claw section of the V-nail section extends into the casting layer.

[0020] The beneficial effects of this utility model are: Compared with the prior art, the pluggable Y-shaped anchor nail with adjustable length and the heating furnace with it can adjust the installation length of the straight nail section according to the actual thickness of the backing layer, thus offsetting the cumulative effect of various errors during construction. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0022] Figure 1 This is a schematic diagram illustrating the ideal state of Y-shaped anchor bolts installed on the furnace wall in the existing technology.

[0023] Figure 2 This is a schematic diagram illustrating the short straight section of the Y-shaped anchor nail installed on the furnace wall in the prior art.

[0024] Figure 3 This is a schematic diagram showing that the straight nail section of the Y-shaped anchor nail installed on the furnace wall in the prior art is too long.

[0025] Figure 4 This is a schematic diagram of the pluggable, length-adjustable Y-shaped anchor bolt in the embodiment.

[0026] Figure 5 This is a schematic diagram showing the connection between the transition section, the insertion post, and the extension tube in the embodiment.

[0027] Figure 6 This is a schematic diagram showing the positioning card on the insertion post and the positioning hole on the extension tube in the embodiment.

[0028] Figure 7 This is a schematic diagram showing the connection between the transition section, the insert, and the extension tube in another embodiment.

[0029] Figure 8 for Figure 7 A schematic diagram with section AA.

[0030] Figure 9 for Figure 7 A schematic diagram with BB as the cross section.

[0031] Figure 10 This is a schematic diagram of the heating furnace in the embodiment.

[0032] Figure label: Straight nail section 1; insert post 11, positioning clip 111, positioning pin 112; Extension tube 12, positioning hole 121, retraction groove 122, clearance groove 123, locking groove 124, semi-circular hole 125; V-nail segment 2, arm claw segment 21, transition segment 22; Pressure ring 3; backing layer 100, casting layer 200. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] This embodiment includes a pluggable, length-adjustable Y-shaped anchor and a heating furnace incorporating it, such as... Figures 4 to 6 As shown, it includes a straight nail segment 1 and a V-nail segment 2. The V-nail segment 2 includes two or more inclined arm claw segments 21. The ends of each arm claw segment 21 are connected via a transition segment 22. The arm claw segments 21 are continuously curved. Each arm claw segment 21 and the transition segment 22 are integrally bent structures or welded structures.

[0035] In this embodiment, the straight nail segment 1 includes an insertion post 11 and an extension tube 12. The rear end of the insertion post 11 is fixed to the transition segment 22 and extends away from the arm claw segment 21. A stop structure is provided between the insertion post 11 and the extension tube 12 so that the insertion post 11 can be inserted into the extension tube 12 to different degrees and then locked together for positioning. This adjusts the distance from the front end of the extension tube 12 to the transition segment 22, i.e., adjusts the total length of the straight nail segment 1. The total length of the straight nail segment 1 is equal to the length of the extension tube 12 plus the segment of the insertion post 11 located outside the extension tube 12. The insertion post 11 is welded and fixed to the V-nail segment 2 or is an integrally cast structure.

[0036] In this embodiment, the front end of the insertion post 11 is a triangular shape with a reduced diameter, and can be arrow-shaped, conical, or square pyramidal, to facilitate insertion of the insertion post 11 into the extension tube 12. The radial cross-section of the extension tube 12 can be rectangular, elliptical, circular, or rectangular with rounded corners.

[0037] In this embodiment, the stop structure includes multiple positioning holes 121 disposed on the side wall of the extension tube 12 and elastic positioning clips 111 disposed on the outer wall of the insertion post 11. The multiple positioning holes 121 are arranged separately along the length direction of the extension tube 12, and the multiple positioning clips 111 are arranged separately along the length direction of the insertion post 11. The positioning clips 111 can be inserted into different positioning holes 121 and locked. The positioning hole 121 is an oblique hole with its outer end facing backward. That is, the edge of the positioning hole 121 that is consistent with the insertion forward direction is set as an oblique surface, and the edge that is consistent with the backward direction is set as a reverse oblique surface. The axial forward movement of the insertion post 11 can disengage the positioning clips 111 from the positioning holes 121, while the axial backward movement of the insertion post 11 is prevented. That is, the insertion post 11 can only be inserted forward into the extension tube 12. Once the positioning clips 111 are inserted into the positioning holes 121, the insertion post 11 cannot move backward.

[0038] When in use, the positioning card 111 moves forward with the insertion post 11, and when it moves backward, the positioning card 111 inserts into the adjacent positioning hole 121 to achieve locking.

[0039] As can be seen from the above, the relative position of the insertion post 11 and the extension tube 12 is adjusted in stages by the positioning hole 121 and the positioning clip 111. The smaller the distance between two adjacent positioning holes 121, the smaller the range of adjustment for each stage.

[0040] In this embodiment, the extension tube 12 has elongated recessed grooves 122 along its length. The number and angle of the recessed grooves 122 on the same cross section correspond one-to-one with the positioning cards 111. After the positioning card 111 disengages from the positioning hole 121, external force can rotate the insert post 11 to make the positioning card 111 embed into the recessed groove 122, exposing the inner end of the positioning card 111. When it is necessary to separate the insert post 11 from the extension tube 12, first push the insert post 11 forward. After the positioning card 111 leaves the positioning hole 121, rotate the insert post 11 to make the positioning card 111 enter the recessed groove 122. At this time, a tool can be used to press the positioning card 111 to cause local plastic deformation, temporarily losing some elasticity, and the insert post 11 can be pulled out and disassembled. When it is necessary to reinstall, the elasticity of the positioning card 111 can be restored by bending it.

[0041] like Figures 7 to 9As shown, another embodiment of the positioning structure includes a clearance groove 123 disposed on the extension tube 12, multiple locking grooves 124, and a positioning pin 112 disposed on the outer wall of the insertion post 11. The elongated clearance groove 123 is arranged along the axial direction of the extension tube 12 and passes through the rear end of the extension tube 12. Two or more clearance grooves 123 are arranged circumferentially around the extension tube 12. Multiple locking grooves 124 are arranged circumferentially around the extension tube 12 and pass through the clearance groove 123. The positioning pin 112 is vertically fixed to the outside of the insertion post 11 and extends out of the extension tube 12. The positioning pin 112 moves with the insertion post 11 along the clearance groove 123 to align and embed into different clearance grooves 123, thereby achieving axial positioning between the extension tube 12 and the insertion post 11.

[0042] Specifically, the end of the locking groove 124 away from the relief groove 123 extends axially toward the extension tube 12 with a semi-circular hole 125, and the positioning pin 112 is inserted into the semi-circular hole 125 to achieve circumferential positioning of the extension tube 12 and the insertion post 11.

[0043] In use, the insert post 11 is inserted into the extension tube 12. The length of the positioning pin 112 extends beyond the outer wall of the extension tube 12. The positioning pin 112 moves forward along the relief groove 123 following the insert post 11. When the positioning pin 112 passes through the locking groove 124, the insert post 11 is rotated so that the positioning pin 112 enters the locking groove 124. The rotation continues until it enters the semi-circular hole 125 of the positioning groove and locks in place.

[0044] When it is necessary to release the lock, move the insert 11 slightly axially to disengage the positioning pin 112 from the semi-circular hole 125, rotate the insert 11 to move the positioning pin 112 out of the locking groove 124, and continue to move the insert 11 along the axis to pull it out.

[0045] In this embodiment, multiple positioning pins 112 are provided, while a small number of locking slots 124 can be provided to meet actual needs. Of course, a small number of positioning pins 112 and multiple locking slots 124 can also meet actual needs. Furthermore, the number of positioning pins 112 and locking slots 124 can be evenly distributed to achieve the best performance.

[0046] A pressure ring 3 is provided at the rear end of the insert 11 to increase the area of ​​the pressing backing layer 100. Different pressure rings 3 can also be used to compensate for adjustment errors. The pressure ring 3 has a through hole in the middle, through which the insert pin can pass. The pressure ring 3 can be circular, rectangular, star-shaped, or polygonal, etc.; the pressure ring 3 is permanently connected to the V-pin segment 2, or it can be separate, depending on the situation.

[0047] This embodiment also provides a heating furnace with the aforementioned pluggable, length-adjustable Y-shaped anchor pins, such as... Figure 10As shown, it includes a furnace wall (not shown in the figure), a backing layer 100 and a casting layer 200. The backing layer 100 is attached to the inner wall of the furnace wall, the casting layer 200 is attached to the backing layer 100, the end of the extension tube 12 is fixed to the inner wall of the furnace wall, the V-nail segment 2 is pressed against the backing layer 100 via the pressure ring 3, and the arm claw segment 21 of the V-nail segment 2 extends into the casting layer 200.

[0048] In the description of this utility model, it is obvious that the described embodiments are only a part of the embodiments of this utility model, and not all of them. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0049] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0050] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A pluggable, length-adjustable Y-type anchor bolt, comprising a straight bolt section (1) and a V-bolt section (2), wherein the V-bolt section (2) comprises two or more inclined claw sections (21), the ends of each claw section (21) being connected via a transition section (22); characterized in that: The straight nail section (1) includes a plug (11) and an extension tube (12). The rear end of the plug (11) is fixed to the transition section (22) and extends away from the arm claw section (21). A stop structure is provided between the plug (11) and the extension tube (12) so that the plug (11) can be inserted into the extension tube (12) to different degrees and then locked together for positioning, thereby adjusting the distance from the front end of the extension tube (12) to the transition section (22).

2. The pluggable, length-adjustable Y-type anchor bolt according to claim 1, characterized in that: The front end of the insert (11) is a triangular shape with a reduced diameter.

3. The pluggable, length-adjustable Y-type anchor bolt according to claim 1, characterized in that: The stop structure includes multiple positioning holes (121) provided on the side wall of the extension tube (12) and an elastic positioning clip (111) provided on the outer wall of the insertion post (11). The multiple positioning holes (121) are arranged separately along the length direction of the extension tube (12), and the positioning clip (111) can be inserted into different positioning holes (121) and locked.

4. The pluggable, length-adjustable Y-type anchor bolt according to claim 3, characterized in that: The positioning hole (121) is an oblique hole with its outer port facing backward. The axial forward movement of the insert (11) can disengage the positioning card (111) from the positioning hole (121), while the axial backward movement of the insert (11) is prevented.

5. The pluggable, length-adjustable Y-type anchor bolt according to claim 4, characterized in that: The extension tube (12) has a long strip-shaped retraction groove (122) along its length. After the positioning card (111) is disengaged from the positioning hole (121), the external force can rotate the insert (11) to make the positioning card (111) embed into the retraction groove (122), so that the inner end of the positioning card (111) is exposed.

6. The pluggable, length-adjustable Y-type anchor bolt according to claim 1, characterized in that: The positioning structure includes a relief groove (123) and multiple locking grooves (124) provided on the extension tube (12), and a positioning pin (112) provided on the outer wall of the insertion post (11). The long strip-shaped relief groove (123) is arranged along the axial direction of the extension tube (12) and passes through the rear end of the extension tube (12). Multiple locking grooves (124) are arranged separately along the axial direction of the extension tube (12), and each locking groove (124) is arranged along the circumference of the extension tube (12) and passes through the relief groove (123). The positioning pin (112) extends out of the extension tube (12) and moves along the relief groove (123) to align and embed into different relief grooves (123), thereby achieving axial positioning of the extension tube (12) and the insertion post (11).

7. The pluggable, length-adjustable Y-type anchor bolt according to claim 6, characterized in that: The end of the locking groove (124) away from the relief groove (123) extends axially toward the extension tube (12) with a semi-circular hole (125). The positioning pin (112) is inserted into the semi-circular hole (125) to achieve circumferential positioning of the extension tube (12) and the insertion post (11).

8. The pluggable, length-adjustable Y-type anchor bolt according to claim 1, characterized in that: The arm claw segment (21) is continuously curved.

9. The pluggable, length-adjustable Y-type anchor bolt according to claim 1, characterized in that: A pressure ring (3) is inserted through the rear end of the insert (11).

10. A heating furnace with a pluggable, length-adjustable Y-shaped anchor as described in any one of claims 1 to 9, characterized in that: It includes a furnace wall, a backing layer (100) and a casting layer (200). The backing layer (100) is attached to the inner wall of the furnace wall, the casting layer (200) is attached to the backing layer (100), the end of the extension pipe (12) is fixed to the inner wall of the furnace wall, the V-nail section (2) is pressed against the backing layer (100), and the claw section (21) of the V-nail section (2) extends into the casting layer (200).

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