Expansion fixing structure
By designing an expansion fixing structure including a fixing seat, a clamping member and an expansion pin, the problem of loosening or failure of the fixed structure under long-term vibration, temperature difference changes or external influences is solved, and a more stable fixing effect and higher thermal insulation performance are achieved.
Patent Information
- Application Number
- CN202421943988.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-08-12
AI Technical Summary
In the prior art, the fixed structure is prone to loosening or failure under long-term vibration, temperature difference changes or external influences, resulting in weakening of thermal insulation effect, increasing maintenance costs, and even safety risks.
An expansion fixing structure is designed, including a fixing seat, a clamping member and an expansion pin. The fixing seat is welded to the connecting layer one, the clamping member is inserted into the through groove of the fixing seat, and the expansion pin slides into the clamping member to form a clamping space to fix the connecting layer two.
It effectively prevents the connection layer 2 from loosening or failure under long-term vibration, temperature difference changes or external influences, improves the stability and insulation effect of the fixed structure, reduces maintenance costs and reduces safety risks.
Smart Images
Figure CN222823504U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fixed structures, and in particular to an expansion fixed structure. Background Art
[0002] Screw fixing or adhesive fixing is a common fixing method, but it may become loose or fail over time, especially in situations where it needs to withstand long-term vibration, temperature changes or external environmental influences, such as the fixing of fuel tank insulation panels. These problems may lead to reduced insulation effect, increased maintenance costs, and even safety risks. Utility Model Content
[0003] The utility model provides an expansion fixing structure, which solves the problem in the related art that the fixing structure may become loose or fail after long-term vibration, temperature difference change or external influence.
[0004] The technical solution of the utility model is as follows:
[0005] An expansion fixing structure, used for connecting a first connection layer and a second connection layer which are spaced apart, comprises:
[0006] A fixing seat, the fixing seat is arranged on the connecting layer 1, the fixing seat is provided with a through slot, and the fixing seat has a second plane at one end away from the connecting layer 1,
[0007] A clamping member, the clamping member is arranged in the through groove, the clamping member has a first plane, a clamping space is formed between the first plane and the second plane, the second connecting layer is arranged in the clamping space, the clamping member has an abutting end near one end of the fixing seat, after the second plane and the second connecting layer abut, the abutting end abuts against the side wall of the through groove,
[0008] An expansion pin is slidably arranged in the clamping piece, and the fixing seat, the clamping piece and the expansion pin are abutted and fixed in sequence.
[0009] Optionally, the side wall of the through groove has a first abutment surface, and the clamping member includes:
[0010] A flat plate, the flat plate is arranged on one side of the fixing seat, the first plane is located at one end of the flat plate close to the fixing seat,
[0011] The expansion lock buckle has a plurality of expansion lock buckles, the plurality of expansion lock buckles are arranged on the flat plate, the plurality of expansion lock buckles are distributed at intervals around the circumference, the abutment end is located outside the expansion lock buckle, and the abutment end abuts against the first abutment surface.
[0012] Optionally, the expansion pin has a clamping groove, and the clamping member further comprises:
[0013] A first column, wherein the first column has a plurality of columns, the first column is arranged at one end of the flat plate away from the fixing seat, the plurality of the first columns are symmetrically arranged, and the first columns are inserted into both ends of the clamping groove,
[0014] The first clamping block has a plurality of first clamping blocks, the plurality of first clamping blocks are symmetrically arranged, and the first clamping block is inserted into the clamping slot.
[0015] Optionally, the expansion pin comprises:
[0016] The circular plate is movably arranged on the side of the clamping member away from the fixing seat, and the clamping groove is located on the circular plate.
[0017] The plug-in column is arranged on the circular plate, and has a second clamping block, a third clamping block and a fourth clamping block on the plug-in column. The second clamping block and the third clamping block form a clamping space, and the first clamping block abuts against the fourth clamping block or is arranged in the clamping space.
[0018] Optionally, the second connecting layer has an opening, and the opening is connected to the through groove.
[0019] Optionally, a plurality of support ribs are provided on the inner wall of the fixing seat, and the plurality of support ribs are arranged in a circular array.
[0020] Optionally, both ends of the fixing seat have anti-rotation surfaces for conveniently clamping the fixing piece during installation and welding.
[0021] The working principle and beneficial effects of the utility model are:
[0022] In the present utility model, in order to solve the problem in the related art that the fixed structure may become loose or fail after long-term vibration, temperature difference change or external influence, a fixing seat is welded on the connection layer 1, and the clamping piece is inserted into the through groove of the fixing seat. The connection layer 2 located in the clamping space is clamped by the first plane and the second plane to prevent the connection layer 2 from shaking. After the first plane and the second plane are abutted, an expansion pin is inserted into the clamping piece, and the expansion pin props up the abutting end of the clamping piece, and the abutting end abuts against the side wall of the through groove. After the abutment, the clamping piece is fixed to ensure that the clamping piece will not slide out of the through groove. It can solve the problem in the related art that the fixed structure may become loose or fail after long-term vibration, temperature difference change or external influence. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.
[0024] Figure 1It is a schematic diagram of the structure of the utility model;
[0025] Figure 2 This is a schematic diagram of the structure of the utility model after locking;
[0026] Figure 3 This is a cross-sectional view of the utility model after locking;
[0027] Figure 4 This is a schematic diagram of the structure of the fixing seat of the utility model;
[0028] Figure 5 This is a schematic diagram of the expansion pin structure of the utility model;
[0029] Figure 6 This is a schematic diagram of the fixing seat of the utility model from another angle;
[0030] Figure 7 This is a schematic diagram of the structure of the clamping member of the utility model;
[0031] Figure 8 This is a schematic diagram of the structure of the clamping member of the utility model from another angle;
[0032] Fig. 9 This is a schematic structural diagram of the expansion pin of the utility model from another angle.
[0033] In the figure: 1. connecting layer one, 2. connecting layer two, 3. fixing seat, 301. through groove, 302. second plane, 4. clamping piece, 401. first plane, 5. clamping space, 402. abutting end, 6. expansion pin, 303. first abutting surface, 403. flat plate, 404. expansion lock, 601. clamping groove, 405. first column, 406. first clamping block, 602. round plate, 603. plug-in column, 604. second clamping block, 605. third clamping block, 606. fourth clamping block, 607. clamping space, 304. supporting rib, 305. anti-rotation surface. DETAILED DESCRIPTION
[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.
[0035] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "multiple" and "more than a plurality".
[0036] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of multiple components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0037] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0038] Reference Figure 1 to Figure 9 , which is the first embodiment of the utility model, proposes an expansion fixing structure for connecting the spaced connection layer 1 and the connection layer 2, including a fixing seat 3, the fixing seat 3 is arranged on the connection layer 1, the fixing seat 3 is provided with a through groove 301, the fixing seat 3 has a second plane 302 at the end away from the connection layer 1, the clamping member 4 is arranged in the through groove 301, the clamping member 4 has a first plane 401, and a clamping space 5 is formed between the first plane 401 and the second plane 302, the connection layer 2 is arranged in the clamping space 5, the clamping member 4 has a butt end 402 close to the fixing seat 3, after the second plane 302 and the connection layer 2 are butted, the butt end 402 abuts against the side wall of the through groove 301; the expansion pin 6 is slidably arranged in the clamping member 4, the fixing seat 3, the clamping member 4 and the expansion pin 6 are abutted and fixed in turn.
[0039] In this embodiment, in order to solve the problem in the related art that the fixed structure may become loose or fail after long-term vibration, temperature difference change or external influence, a fixing seat 3 is welded on the connecting layer 1, and the clamping member 4 is inserted into the through groove 301 of the fixing seat 3. The connecting layer 2 2 located in the clamping space 5 is clamped by the first plane 401 and the second plane 302 to prevent the connecting layer 2 2 from shaking. After the first plane 401 and the second plane 302 abut, the expansion pin 6 is inserted into the clamping member 4, and the expansion pin 6 opens the abutting end 402 of the clamping member 4, and the abutting end 402 abuts against the side wall of the through groove 301. After the abutment, the clamping member 4 is fixed to ensure that the clamping member 4 will not slide out of the through groove 301. It can solve the problem in the related art that the fixed structure may become loose or fail after long-term vibration, temperature difference change or external influence.
[0040] Furthermore, the side wall of the through groove 301 has a first abutment surface 303, the clamping member 4 includes a flat plate 403, the flat plate 403 is arranged on one side of the fixing seat 3, the first plane 401 is located at one end of the flat plate 403 close to the fixing seat 3, the expansion lock buckle 404, the expansion lock buckle 404 has multiple, the multiple expansion lock buckles 404 are arranged on the flat plate 403, the multiple expansion lock buckles 404 are distributed at intervals around the circumference, the abutment end 402 is located on the outside of the expansion lock buckle 404, and the abutment end 402 abuts against the first abutment surface 303.
[0041] In this embodiment, in order to prevent the clamping member 4 from moving out of the through groove 301 of the fixing seat 3 due to vibration, a flat plate 403 is provided, and a plurality of circumferentially spaced expansion locks 404 are provided on the flat plate 403. There are gaps between the plurality of expansion locks 404. When the expansion pin 6 is inserted, the expansion pin 6 will open the plurality of expansion locks 404, and the abutting end 402 on the expansion lock 404 will abut against the first abutting surface 303. Because the abutting end 402 and the first abutting surface 303 abut, it can be ensured that the clamping member 4 will not move upward, and the first plane 401 on the flat plate 403 abuts against the connecting layer 1, the clamping member 4 will not move upward or downward, and the clamping member 4 is completely clamped.
[0042] Furthermore, the expansion pin 6 has a clamping groove 601, and the clamping member 4 also includes a first column 405, and the first column 405 has a plurality of first columns 405, and the first column 405 is arranged at the end of the flat plate 403 away from the fixed seat 3, and the plurality of first columns 405 are symmetrically arranged, and the first column 405 is inserted into the two ends of the clamping groove 601, and the first clamping block 406 has a plurality of first clamping blocks 406, and the plurality of first clamping blocks 406 are symmetrically arranged, and the first clamping block 406 is inserted into the clamping groove 601.
[0043] In this embodiment, in order to prevent the clamping member 4 from rotating out of the through groove 301 of the fixing seat 3 due to vibration, a clamping groove 601 is provided on the expansion pin 6. When the expansion pin 6 is inserted into the clamping member 4, the first column 405 in the clamping member 4 abuts against the edge of the concave clamping groove 601, and the first clamping block 406 abuts against the middle of the concave clamping groove 601. This ensures that during use, the clamping groove 601 will clamp the first column 405 and the first clamping block 406 of the expansion pin 6, and no rotation will occur.
[0044] Furthermore, the expansion pin 6 includes a circular plate 602, which is movably arranged on the side of the clamping member 4 away from the fixed seat 3, the clamping groove 601 is located on the circular plate 602, the plug-in column 603, the plug-in column 603 is arranged on the circular plate 602, and the plug-in column 603 has a second clamping block 604, a third clamping block 605 and a fourth clamping block 606. The third clamping block 605 and the second clamping block 604 form a clamping space 607, and the first clamping block 406 is used to abut against the fourth clamping block 606 or be arranged in the clamping space 607.
[0045] In this embodiment, the second clamping block 604, the third clamping block 605 and the fourth clamping block 606 are provided to ensure that the expansion pin 6 will not fall off after the locking connection layer 2, and the expansion pin 6 can also be inserted and fixed in the clamping member 4 when the locking connection layer 2 is not performed. A plug-in column 603 is provided on the circular plate 602 for plugging into the clamping member 4, and a fourth clamping block 606 is added to the plug-in column 603. The top of the first clamping block 406 has a protrusion. After the locking connection layer 2, the protrusion at the top of the first clamping block 406 abuts against the upper end of the fourth clamping block 606, which can clamp the expansion pin 6 and prevent it from sliding upward. When the locking connection layer 2 is not performed, the expansion pin 6 can also be fixed in the clamping member 4. The protrusion at the top of the first clamping block 406 abuts against the upper end of the third clamping block 605 and the lower end of the second clamping block 604, which can prevent the expansion pin 6 from moving upward or downward in the clamping member 4.
[0046] Furthermore, the second connection layer 2 has an opening, and the opening is connected to the through groove 301 .
[0047] In this embodiment, an opening is provided in the connecting layer 2 so that the opening is connected to the through groove 301 so that after the connecting layer 2 is placed on the second plane 302 , the clamping member 4 and the expansion pin 6 will not be blocked by the connecting layer 2 when inserted into the through groove 301 .
[0048] Furthermore, the inner wall of the fixing seat 3 is provided with a plurality of supporting ribs 304 , and the plurality of supporting ribs 304 are arranged in a circular array.
[0049] In this embodiment, in order to ensure the strength of the fixing base 3, a plurality of support ribs 304 are provided on the inner wall of the fixing base 3. The plurality of support ribs 304 can share the force received by the fixing base 3 and improve the service life and stability of the fixing base 3.
[0050] Furthermore, both ends of the fixing seat 3 have anti-rotation surfaces 305 for conveniently clamping the fixing parts during installation and welding.
[0051] In this embodiment, when the fixing seat 3 needs to be fixed on the connecting layer 1, the connection needs to be welded. In order to prevent the fixing seat 3 from shifting during welding, an anti-rotation surface 305 is provided. Holding the anti-rotation surface 305 during welding can provide better grip and ensure stability during welding.
[0052] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. An expansion fixing structure, characterized in that: A connection layer 1 (1) and a connection layer 2 (2) for connecting the spaced distributions include: A fixing seat (3), the fixing seat (3) being arranged on the first connecting layer (1), the fixing seat (3) being provided with a through slot (301), and the fixing seat (3) having a second plane (302) at one end away from the first connecting layer (1), A clamping member (4), the clamping member (4) being arranged in the through groove (301), the clamping member (4) having a first plane (401), a clamping space (5) being formed between the first plane (401) and the second plane (302), the second connecting layer (2) being arranged in the clamping space (5), the clamping member (4) having an abutting end (402) at one end close to the fixing seat (3), the abutting end (402) abutting against the side wall of the through groove (301) after the second plane (302) and the second connecting layer (2) abut against each other, An expansion pin (6), wherein the expansion pin (6) is slidably disposed in the clamping member (4), and the fixing seat (3), the clamping member (4) and the expansion pin (6) are abutted and fixed in sequence.
2. An expansion and fixing structure according to claim 1, characterized in that: The side wall of the through slot (301) has a first abutment surface (303), and the clamping member (4) comprises: a flat plate (403), the flat plate (403) being arranged on one side of the fixing seat (3), the first plane (401) being located at one end of the flat plate (403) close to the fixing seat (3), An expansion lock buckle (404), wherein the expansion lock buckle (404) has a plurality of expansion lock buckles (404), the plurality of expansion lock buckles (404) are arranged on the flat plate (403), the plurality of expansion lock buckles (404) are distributed at intervals around the circumference, the abutment end (402) is located outside the expansion lock buckle (404), and the abutment end (402) abuts against the first abutment surface (303).
3. An expansion and fixing structure according to claim 2, characterized in that: The expansion pin (6) has a clamping groove (601), and the clamping member (4) further comprises: a first column (405), wherein the first column (405) has a plurality of columns, the first column (405) is arranged at an end of the flat plate (403) away from the fixing seat (3), the plurality of first columns (405) are symmetrically arranged, and the first columns (405) are plugged into the two ends of the clamping groove (601). A first clamping block (406), wherein the first clamping blocks (406) are multiple, the multiple first clamping blocks (406) are symmetrically arranged, and the first clamping blocks (406) are inserted into the clamping slots (601).
4. The expansion and fixing structure according to claim 3, characterized in that: The expansion pin (6) comprises: a circular plate (602), the circular plate (602) being movably arranged on a side of the clamping member (4) away from the fixing seat (3), the clamping groove (601) being located on the circular plate (602), A plug-in column (603), wherein the plug-in column (603) is arranged on the circular plate (602), and the plug-in column (603) has a second clamping block (604), a third clamping block (605) and a fourth clamping block (606), wherein the third clamping block (605) and the second clamping block (604) form a clamping space (607), and the first clamping block (406) is used to abut against the fourth clamping block (606) or be arranged in the clamping space (607).
5. The expansion and fixing structure according to claim 1, characterized in that: The second connecting layer (2) has an opening, and the opening is connected to the through groove (301).
6. The expansion and fixing structure according to claim 1, characterized in that: The inner wall of the fixing seat (3) is provided with a plurality of supporting ribs (304), and the plurality of supporting ribs (304) are arranged in a circular array.
7. The expansion and fixing structure according to claim 1, characterized in that: The fixing seat (3) has anti-rotation surfaces (305) at both ends, which are used to facilitate clamping of the fixing piece during installation and welding.