Base assembly structure

Abstract

The utility model discloses a base assembly structure which comprises a base, an installation notch and a first clamping foot assembly, the first clamping foot assembly comprises a first buckle, the base is limited to an installation guide rail through the first buckle, the first clamping foot assembly is movably connected with the base, and the installation notch is arranged in the installation guide rail. The first buckle arranged on one side of the mounting notch retracts or extends out of one side of the mounting notch so as to change the width of the mounting notch; the first clamping pin assembly comprises a first elastic arm, the base is provided with an installation cavity, the installation cavity comprises a first installation cavity, at least part of the first clamping pin assembly is located in the first installation cavity, a first connecting part is arranged in the first installation cavity, the end of the first elastic arm abuts against the first connecting part, and when no external force acts on the first elastic arm, the first clamping pin assembly is located in the first installation cavity. The first elastic arm has contraction force, so that the first buckle protrudes out of the side wall of the mounting notch. The structure is simple, the first clamping pin assembly and the second clamping pin assembly can be of an integrally-formed structure, the structure is simple, and assembling is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic base assembly, and specifically relates to a base assembly structure. Background Art

[0002] Electrical components such as circuit breakers, relays, lightning protectors, and residual current protectors widely use rail mounting structures. Two plastic mounting feet are provided on the rear side of the insulating housing of such low-voltage electrical components. The two plastic mounting feet are respectively located at the upper and lower parts of the rear side of the insulating housing, and can be respectively engaged with the upper and lower sides of the rail. One of the plastic mounting feet adopts a cantilever structure and is elastic. After the plastic mounting foot is deformed by force, the distance between the two plastic mounting feet can be increased, which is convenient for the plastic mounting foot to engage with the rail. In the above-mentioned technology, one clamping foot is mostly used, but this module using a spring clamping structure has many structural parts, complex assembly, and high production cost. The clamping foot has a complex structure, and most of the existing domestic brand bases use a screwdriver to control the adjustment of the clamping cantilever when disassembling, which is inconvenient to operate, requires a large operating force, and is laborious. Most foreign brands use hand-dial buttons, but when the chassis space is small, the hand cannot be put in, which has great limitations. Therefore, it is very important to obtain a base assembly structure that overcomes the above-mentioned defects. Utility Model Content

[0003] In order to solve at least one of the above technical problems, the utility model provides a base assembly structure, including a base, a mounting slot matched with a mounting rail is opened on the base, and a first foot assembly is also included, the first foot assembly is movably arranged on the base, the first foot assembly includes a first buckle and a first elastic arm, the first buckle is located on one side of the mounting slot, and the first elastic arm is respectively connected to the first buckle and the first connecting portion of the base.

[0004] When the first clamping foot assembly is moved by an external force, the first elastic arm is in a stretched state, and one end of the mounting rail is clamped between the first clamping buckle and the limiting inner wall of the mounting slot, so that the mounting rail and the mounting slot are in a mutually unlocked state;

[0005] When the first clamping foot assembly moves due to the contraction force of the first elastic arm, the first elastic arm is in a contracted state, and the first buckle is away from one end of the mounting rail, and the mounting rail and the mounting slot are in a locked state.

[0006] Among them, the utility model uses only one first foot assembly, and the first foot assembly also includes a first unlocking portion arranged on the first buckle, the first unlocking portion passes through the outer wall of the base, the first unlocking portion is pulled outward, so that the first elastic arm is in a stretched state, and the first buckle moves into the side wall of the mounting slot to widen the width of the mounting slot, so that the base is detached from the mounting rail. The first foot assembly also includes a first limiting portion arranged on the first buckle, and the inner wall of the mounting cavity of the base is provided with the first interference portion corresponding to the position of the first limiting portion. When the first foot assembly is not subjected to external force, the first buckle protrudes from a side wall of the mounting slot. The first unlocking portion passes through the outer wall of the base, the first unlocking portion is pulled outward, so that the first elastic arm is unfolded, and the first buckle moves into the side wall of the mounting slot to widen the width of the mounting slot, so that the base is detached from the mounting rail.

[0007] Through the above technical solution, the utility model only uses one clamping foot assembly, and the clamping foot assembly has a first elastic arm, has a simple structure, and greatly reduces the assembly cost of the product.

[0008] The utility model uses a first buckle and a second buckle: it also includes a second foot assembly movably arranged on the base, the second foot assembly includes a second buckle and a second elastic arm, the second buckle is arranged on the other side of the installation slot, and the first buckle is arranged opposite to the second buckle, and the second elastic arm is connected to the second connecting portion of the base.

[0009] When the second foot assembly is moved by an external force, the second elastic arm is in a stretched state, and the second buckle is away from the other end of the mounting rail;

[0010] When the second clamping foot assembly moves due to the contraction force of the second elastic arm, the second elastic arm is in a contracted state, and the second buckle is located at the other end of the mounting guide rail.

[0011] The second foot assembly also includes a second limiting portion arranged on the second buckle, and the inner wall of the mounting cavity of the base is provided with a second interference portion corresponding to the position of the second limiting portion. When the second foot assembly is not subject to external force, the second buckle protrudes from the other side wall of the mounting slot.

[0012] The two ends of the first elastic arm and / or the second elastic arm are respectively connected to the first clamping foot assembly and the second clamping foot assembly. The first elastic arm and / or the second elastic arm is provided with at least two bending portions and the bending directions are arranged in opposite directions. The connecting body between two adjacent bending portions is rotatably connected to the connecting portion of the mounting cavity of the base.

[0013] At least one of the bending portions is provided with a recess, so that the width of the bending portion is smaller than the width of the first elastic arm and / or the second elastic arm; the first elastic arm and the second elastic arm are symmetrically and staggeredly arranged.

[0014] The outward stretching of the first unlocking portion can achieve a linkage effect on the first clamping foot assembly and the second clamping foot assembly.

[0015] Among them, the second clamping foot assembly can be separately equipped with a second unlocking portion, which passes through the outer wall of the base. The second unlocking portion is pulled outward to unfold the second elastic arm, and the second clip moves toward the side wall of the mounting slot to widen the width of the mounting slot, so that the base can be detached from the mounting guide rail.

[0016] The unlocking portion is provided with a limiting protrusion, and the base is provided with a second inclined surface matching with the limiting protrusion.

[0017] A positioning pin is arranged in the installation cavity, and a positioning hole cooperating with the positioning pin is arranged on the first elastic arm and / or the second elastic arm. The positioning pin is located in the installation cavity of the base above the installation notch.

[0018] The first buckle and / or the second buckle is provided with a first inclined surface which is inclined upward and arranged toward the middle of the installation slot.

[0019] Through the above technical solution, the symmetrical first buckle and the second buckle are used, so that the assembly of the utility model is more stable, and one unlocking part can be used to realize the common driving unlocking of the first buckle and the second buckle, which is convenient and quick.

[0020] Compared with the prior art, the utility model has the advantages that: the utility model has a simple structure, the first clamping foot assembly and the second clamping foot assembly can be an integrally formed structure, the structure is simple, and the assembly is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional schematic diagram of one embodiment of the utility model;

[0022] Figure 2 This is a cross-sectional schematic diagram of another embodiment of the utility model;

[0023] Figure 3 for Figure 2 A cross-sectional perspective view of

[0024] Figure 4 for Figure 2 A three-dimensional diagram of the first clamping foot assembly and the second clamping foot assembly cooperating with each other;

[0025] Figure 5 This is a schematic diagram of the utility model being put into use. Figure 1 ;

[0026] Figure 6 This is a schematic diagram of the utility model being put into use. Figure 2 ;

[0027] Reference numerals:

[0028] 1-base; 101-installation slot; 102-first abutment portion; 103-second abutment portion;

[0029] 2 first clamping foot assembly; 201 first clamping buckle; 202- first elastic arm;

[0030] 3-second clamping foot assembly; 301-second buckle; 302-second elastic arm;

[0031] 4- Install the guide rails;

[0032] 501 first unlocking portion; 502 second unlocking portion; 503 limiting protrusion; 504 second inclined surface;

[0033] 6 installation cavity; 601 first installation cavity; 602 second installation cavity;

[0034] 7-concave;

[0035] 8 first inclined surface;

[0036] 901 positioning pin; 902 positioning hole;

[0037] 10 Install the guide rails;

[0038] 1101 a first limiting portion; 1102 a second limiting portion. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection claimed by the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementation methods of the present invention, which are only part of the embodiments of the present invention, and the specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the scope of implementation of the present invention.

[0040] The utility model adopts the following technical scheme, including a base 1, a mounting slot 101 cooperating with a mounting rail 10 is provided on the base 1, and a first foot assembly 2 is movably arranged on the base 1, the first foot assembly 2 includes a first buckle 201 and a first elastic arm 202, the first buckle 201 is located on one side of the mounting slot 101, and the first elastic arm is respectively connected to the first buckle and the first connecting portion of the base,

[0041] When the first clamping foot assembly 2 is moved by an external force, the first elastic arm 202 is in a stretched state, and one end of the mounting rail 10 is clamped between the first clamping buckle 201 and the limiting inner wall of the mounting slot 101, so that the mounting rail 10 and the mounting slot 101 are in a mutually unlocked state;

[0042] When the first foot assembly 2 is moved by the contraction force of the first elastic arm 202, the first elastic arm 202 is in a contracted state, and the first buckle 201 is away from one end of the mounting rail 10, and the mounting rail 10 is locked with the mounting slot 101. In this example, the mounting cavity includes a first mounting cavity.

[0043] The utility model also comprises a first connection point and a second connection point, and the first connection point and the second connection point are respectively the connection positions of two elastic arms.

[0044] The present invention only uses one first foot assembly 2. In this embodiment, the first foot assembly 2 also includes a first unlocking portion 501. The first connection is fixed to the inner wall of the first mounting cavity 601. The first unlocking portion 501 passes through the outer wall of the base 1. The first unlocking portion 501 is pulled outward to expand the first elastic arm 202. The first buckle 201 moves into the side wall of the mounting slot 101 to widen the width of the mounting slot 101, so that the base 1 is detached from the mounting rail 10. Figure 1 As shown, the first elastic arm 202 can be fixedly connected to the first connection of the first installation cavity 601, or can be separately provided with the first connection, and the end of the first elastic arm 202 is tightly attached to the first connection. As shown in the figure, the first connection is formed on the inner wall of the first installation cavity 601.

[0045] Through the above technical solution, the utility model only uses one clamping foot assembly, and the clamping foot assembly has a first elastic arm 202, which has a simple structure and greatly reduces the assembly cost of the product.

[0046] The utility model uses a first buckle 201 and a second buckle 301: in this embodiment, it also includes a second foot assembly 3 movably arranged on the base 1, the second foot assembly 3 includes a second buckle 301 and a second elastic arm 302, the second buckle 301 is arranged on the other side of the installation slot 101, and the first buckle 201 is arranged opposite to the second buckle 301, and the second elastic arm 302 is connected to the second connection part of the base.

[0047] When the second foot assembly 3 is moved by an external force, the second elastic arm 302 is in a stretched state, and the second buckle 301 is away from the other end of the mounting rail;

[0048] When the second foot assembly 3 is moved by the contraction force of the second elastic arm 302 , the second elastic arm 302 is in a contracted state, and the second buckle 301 is limited to the other end of the mounting rail 10 .

[0049] The second foot assembly 3 also includes a second limiting portion arranged on the second buckle 301, and the inner wall of the mounting cavity of the base 1 is provided with a second abutment portion 103 corresponding to the position of the second limiting portion. When the second foot assembly 3 is not subjected to external force, the second buckle 301 protrudes from the other side wall of the mounting slot 101. The mounting cavity also includes a second mounting cavity. In this embodiment, the linkage unlocking of the first foot assembly and the second foot assembly can be achieved through the first unlocking portion.

[0050] In this embodiment, the first installation cavity 601 and the second installation cavity 602 partially overlap.

[0051] The first connection point is fixed on the second foot assembly 3 , and / or the second connection point is fixed on the first foot assembly 2 .

[0052] like Figure 2 As shown, the first connection point is formed on the second foot assembly 3 , and the second connection point is formed on the second foot assembly 3 , so that the first foot assembly 2 and the second foot assembly 3 are formed in one piece.

[0053] The two ends of the first elastic arm 202 and / or the second elastic arm 302 are respectively connected to the first clamping foot assembly 2 and the second clamping foot assembly 3, and the first elastic arm 202 and / or the second elastic arm 302 are provided with at least two bending portions and the bending directions are arranged in opposite directions, and the connecting body between two adjacent bending portions is rotationally connected to the connecting portion of the mounting cavity 6 of the base.

[0054] At least one of the bending portions is provided with a recess 7 so that the width of the bending portion is smaller than the width of the first elastic arm 202 and / or the second elastic arm 302; the first elastic arm 202 and the second elastic arm 302 are symmetrically and staggeredly arranged to be cross-shaped.

[0055] The unlocking portion is provided with a limiting protrusion 503 , a second inclined surface 504 cooperating with the limiting protrusion 503 is provided in the base 1 , and a third inclined surface cooperating with the second inclined surface 504 is provided on the limiting protrusion 503 .

[0056] A positioning pin 901 is provided in the installation cavity 6, and a positioning hole 902 is provided on the first elastic arm 202 and / or the second elastic arm 302 to cooperate with the positioning pin 901. In this embodiment, the positioning pin 901 forms a first connecting portion and a second connecting portion, and the positioning pin 901 is located in the installation cavity 6 of the base 1 above the installation notch 101.

[0057] The first buckle 201 and / or the second buckle 301 is provided with a first inclined surface 8 which is inclined upward and disposed toward the middle of the installation slot 101 .

[0058] Through the above technical solution, the symmetrical first buckle 201 and the second buckle 301 are used, so that the assembly of the utility model is more stable, and one unlocking part can be used to realize the common driving unlocking of the first buckle 201 and the second buckle 301, which is convenient and quick.

[0059] Therein, openings communicating with the mounting cavity 6 are provided on both sides of the mounting slot 101 of the base 1 to facilitate the first buckle 201 and the second buckle 301 to extend out of or retract into the openings.

[0060] In other embodiments, the second clamping foot assembly 3 may be separately equipped with a second unlocking portion 502, which passes through the outer wall of the base 1. The second unlocking portion 502 is pulled outward to expand the second elastic arm 302, and the second buckle 301 moves toward the side wall of the installation slot 101 to widen the width of the installation slot 101, so that the base 1 can be detached from the mounting rail 10.

[0061] When the utility model is put into use, Figure 5 As shown, by directly pressing downward on the base 1, the mounting guide rail 10 will be squeezed toward both sides along the inclined surface by the first clip 201 and the second clip 301 respectively. Under the reset elastic force of the first elastic arm 202, the first clip 201 will clamp one end of the mounting guide rail 10 on the limiting inner wall of the mounting slot 101 and press the first clip 201 directly. Under the reset elastic force of the second elastic arm 302, the second clip 301 will clamp the other end of the mounting guide rail 10 on the limiting inner wall of the mounting slot 101 and press the second clip 301 directly, so as to fix the mounting guide rail 10 in the mounting slot 101.

[0062] When unlocking, pull the unlocking part outward, and the first buckle 201 and the second buckle 301 are opened, releasing the lock on the two ends of the mounting rail 10, so that the base 1 can be easily taken out, and the limiting protrusion 503 moves outward along with the second inclined surface 504 and is limited by the outer wall of the base 1, and is in a fixed state under the action of the limiting protrusion 503.

[0063] like Figure 6 As shown, the unlocking portion is pushed in the direction indicated by the arrow, so that the limiting protrusion 503 loses the limiting effect on the first buckle 201 or the second buckle 301 and is reset under the action of the first and second elastic arms 302 .

[0064] Compared with the prior art, the utility model has the advantages that: the utility model has a simple structure, the first clamping foot assembly 2 and the second clamping foot assembly 3 can be an integrally formed structure, the structure is simple, and the assembly is convenient.

[0065] The above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A base assembly structure, characterized in that: The invention comprises a base (1), wherein a mounting slot (101) cooperating with a mounting guide rail (10) is provided on the base (1), and further comprises a first foot assembly (2), wherein the first foot assembly (2) is movably arranged on the base (1), and the first foot assembly (2) comprises a first buckle (201) and a first elastic arm (202), wherein the first buckle (201) is located on one side of the mounting slot (101), and the first elastic arm is respectively connected to the first buckle and a first connecting portion of the base, When the first clamping foot assembly (2) is moved by an external force, the first elastic arm (202) is in a stretched state, and one end of the mounting rail (10) is clamped between the first clamping buckle (201) and the limiting inner wall of the mounting slot (101), so that the mounting rail (10) and the mounting slot (101) are in a mutually unlocked state; When the first clamping foot assembly (2) moves due to the contraction force of the first elastic arm (202), the first elastic arm (202) is in a contracted state, and the first buckle (201) is away from one end of the mounting rail (10), and the mounting rail (10) and the mounting slot (101) are in a locked state.

2. The base assembly structure according to claim 1, characterized in that: The first clamping foot assembly (2) further comprises a first unlocking portion (501) arranged on the first clamping buckle (201), wherein the first unlocking portion (501) passes through the outer wall of the base (1), and the first unlocking portion (501) is pulled outward to make the first elastic arm (202) in a stretched state, and the first clamping buckle (201) moves into the side wall of the installation slot (101) to widen the width of the installation slot (101), so that the base (1) is detached from the installation guide rail (10).

3. The base assembly structure according to claim 1, characterized in that: The first clamping foot assembly (2) further comprises a first limiting portion (1101) arranged on the first clamping buckle (201); the inner wall of the mounting cavity (6) of the base (1) is provided with a first abutting portion (102) corresponding to the position of the first limiting portion; when the first clamping foot assembly (2) is not subjected to external force, the first clamping buckle (201) protrudes from a side wall of the mounting slot (101).

4. The base assembly structure according to any one of claims 1 to 3, characterized in that: The invention also comprises a second foot assembly (3) movably arranged on the base (1), the second foot assembly (3) comprising a second buckle (301) and a second elastic arm (302), the second buckle (301) being arranged on the other side of the installation slot (101), and the first buckle (201) and the second buckle (301) being arranged opposite to each other, and the second elastic arm (302) being connected to the second connecting portion of the base. When the second clamping foot assembly (3) is moved by an external force, the second elastic arm (302) is in a stretched state, and the second buckle (301) is away from the other end of the mounting guide rail; When the second clamping foot assembly (3) moves due to the contraction force of the second elastic arm (302), the second elastic arm (302) is in a contracted state, and the second buckle (301) is limited to the other end of the mounting guide rail (10).

5. The base assembly structure according to claim 4, characterized in that: The second clamping foot assembly (3) further comprises a second limiting portion (1102) arranged on the second clamping buckle (301); the inner wall of the mounting cavity (6) of the base (1) is provided with a second abutting portion (103) corresponding to the position of the second limiting portion; when the second clamping foot assembly (3) is not subjected to external force, the second clamping buckle (301) protrudes from the other side wall of the mounting slot (101).

6. The base assembly structure according to claim 5, characterized in that: The two ends of the first elastic arm (202) and / or the second elastic arm (302) are respectively connected to the first clamping foot assembly (2) and the second clamping foot assembly (3); the first elastic arm (202) and / or the second elastic arm (302) are provided with at least two bending portions and the bending directions are arranged in opposite directions; and the connecting body between two adjacent bending portions is rotationally connected to the connecting portion of the mounting cavity (6) of the base.

7. The base assembly structure according to claim 6, characterized in that: At least one of the bent portions is provided with an inner recess (7), so that the width of the bent portion is smaller than the width of the first elastic arm (202) and / or the second elastic arm (302); Or the first elastic arm (202) and the second elastic arm (302) are symmetrically and staggeredly arranged.

8. The base assembly structure according to claim 2, characterized in that: A limiting protrusion (503) is provided on the first unlocking portion (501), and a second inclined surface (504) cooperating with the limiting protrusion (503) is provided in the base (1).

9. The base assembly structure according to claim 6, characterized in that: The first connection part and the second connection part of the installation cavity (6) of the base are positioning pins (901), and the connecting body between two adjacent bending parts is a positioning hole (902) that cooperates with the positioning pin (901).

10. The base assembly structure according to claim 4, characterized in that: The first buckle (201) and / or the second buckle (301) is provided with a first inclined surface (8) which is inclined upward and arranged toward the middle of the installation slot (101).

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