CN113775901A

CN113775901A - Suspension type fixing seat and bracket unit thereof

Info

Publication number: CN113775901A
Application number: CN202010522422.0A
Authority: CN
Inventors: 吴宥铄
Original assignee: Wistron Neweb Corp
Current assignee: Wistron Neweb Corp
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-12-10
Anticipated expiration: 2040-06-10
Also published as: CN113775901B

Abstract

The invention discloses a suspension type fixing seat and a bracket unit thereof. The bracket unit comprises a main body section, a suspension section and a fixing section; the main body section is long and is defined with a length direction, and the main body section comprises a selection part, two long side edges, a first matching part and a second matching part which are arranged at intervals with the selection part in the length direction; the suspension section and the holding section are respectively formed by extending from two long side edges of the main body section; the selection part can be positioned on the first matching part and the second matching part in a geometric mode. The invention can effectively reduce the production cost of the suspension type fixed seat (or the bracket unit).

Description

Suspension type fixing seat and bracket unit thereof

Technical Field

The present disclosure relates to support assemblies, and particularly to a suspension type fixing base and a support unit thereof.

Background

The existing suspension bracket needs to be correspondingly formed into a corresponding structure according to the size of a structure to which the suspension bracket is installed; that is, when the existing suspension bracket needs to be installed on structures with different sizes, the existing suspension bracket needs to be formed into different structures to be fixed on the structures with different sizes or shapes, and further, the production cost of the existing suspension bracket is increased (for example, multiple sets of molds or multiple parts are needed).

The present inventors have considered that the above-mentioned drawbacks can be improved, and have made intensive studies and use of scientific principles, and finally have proposed the present invention which is designed reasonably and effectively to improve the above-mentioned drawbacks.

Disclosure of Invention

Embodiments of the present invention provide a suspension fixing base and a bracket unit thereof, which can effectively overcome the possible defects of the conventional suspension bracket.

The embodiment of the invention discloses a suspension type fixing seat, which comprises: two bracket units for selectively suspending a first structure and a second structure having different widths; wherein the width of the first structure is smaller than the width of the second structure, and each of the rack units includes: the main body section is long and is defined with a length direction, and comprises a selection part, two long side edges, a first matching part and a second matching part which are arranged at intervals in the length direction with the selection part; and a suspension section and a holding section respectively formed by extending from two long side edges of the main body section; when the suspension type fixed seat is arranged on the first structure by the two suspension sections and is positioned at a first position, the selection part of any one bracket unit is positioned at the first matching part of the other bracket unit; when the suspension type fixing seat is arranged on the second structure by the two suspension sections and is located at a second position, the selection part of any one bracket unit is located at the second matching part of the other bracket unit.

The embodiment of the invention also discloses a bracket unit of the suspension type fixed seat, which comprises: the main body section is long and is defined with a length direction, and comprises a selection part, two long side edges, a first matching part and a second matching part which are arranged at intervals in the length direction with the selection part; and a suspension section and a holding section respectively formed by extending from two long side edges of the main body section; the selection part can be positioned on the first matching part and the second matching part in a geometric mode.

In summary, in the suspension holder and the holder unit thereof disclosed in the embodiments of the present invention, the selection portion capable of being geometrically and selectively matched with the first matching portion and the second matching portion is formed on the main body section, so that the two holder units can be selectively suspended on the first structure and the second structure having different widths, thereby effectively reducing the production cost of the suspension holder (or the holder unit).

For a better understanding of the nature and technical content of the present invention, reference should be made to the following detailed description of the invention and the accompanying drawings, which are provided for illustration purposes only and are not intended to limit the scope of the invention in any way.

Drawings

Fig. 1 is a schematic perspective view illustrating a suspension type fixing base installed in a first structure according to a first embodiment of the invention.

Fig. 2 is a schematic perspective view illustrating a suspension type fixing base mounted on a second structure according to a first embodiment of the invention.

Fig. 3 is an exploded view of a suspension holder according to a first embodiment of the invention.

Fig. 4 is a side view of the holder unit of fig. 3.

Fig. 5 is a schematic cross-sectional view of fig. 4 along the sectional line V-V.

Fig. 6 is a schematic perspective cross-sectional view of the suspension holder shown in fig. 1.

Fig. 7 is a schematic top view of fig. 6.

Fig. 8 is a schematic cross-sectional view of fig. 1 along the sectional line VIII-VIII.

Fig. 9 is a schematic perspective cross-sectional view of the suspension holder in fig. 2.

Fig. 10 is a schematic top view of fig. 9.

Fig. 11 is a schematic cross-sectional view of fig. 2 along section line XI-XI.

Fig. 12 is a perspective view illustrating another aspect of a suspension holder according to a first embodiment of the invention.

Fig. 13 is an exploded view of a suspension holder according to a second embodiment of the invention.

Fig. 14 is a schematic cross-sectional view illustrating the suspension holder of fig. 13 mounted to a first structure.

Fig. 15 is a schematic cross-sectional view illustrating the suspension fixing base of fig. 13 mounted on a second structure.

Description of the main component symbols:

100 rack unit

1 main body segment

11 substrate

111 Long side edge

112 first inlet

113 track hole

114 sliding part

115 feedback cantilever

1151 convex hull

116a, 116b cut

12 selection part

121 insert cantilever

122 buckling structure

123 fixing piece

13 first matching part

14 second matching part

141 positioning segment

142 cantilever segment

143 stop section

144 second inlet

2 suspension section

21 long notch

3 holding section

200 first structure

300 second structure

L longitudinal direction

W width direction

H height direction

S1 Assembly side

S2 suspension side

D predetermined distance

W200 and W300 widths

Detailed Description

The following description is provided for the embodiments of the suspension fixing base and the bracket unit thereof, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure of the present specification. The invention is capable of other and different embodiments and its several details are capable of modification and various other changes, which can be made in various details within the specification and without departing from the spirit and scope of the invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are used primarily to distinguish one element from another element or from one signal to another signal. In addition, the term "or" as used herein should be taken to include any one or combination of more of the associated listed items as the case may be.

[ example one ]

Referring to fig. 1 to 12, the present embodiment discloses a suspension type fixing base, which includes two bracket units 100 used in cooperation with each other. Although the suspension holder is illustrated as two holder units 100 that are matched with each other in the embodiment, in other embodiments not shown in the present disclosure, the holder units 100 may be applied separately (for example, sold) or used in combination with other components.

Furthermore, as shown in fig. 1 to 3, two of the bracket units 100 are used to be selectively suspended (along the following width direction W) on a first structure 200 and a second structure 300 having different widths, and the width W200 of the first structure 200 is smaller than the width W300 of the second structure 300, so that the suspension holder can be used to suspend a suspended object (not shown, such as a projector) on the first structure 200 or the second structure 300.

In this embodiment, the first structure 200 is a first light steel frame installed on the ceiling, the second structure 300 is a second light steel frame installed on the ceiling, and two of the rack units 100 can be installed on the first light steel frame or the second light steel frame, but the invention is not limited thereto. For example, the first structure 200 and the second structure 300 may be members other than light steel frames.

It should be noted that, in the present embodiment, the two bracket units 100 of the suspension holder have substantially the same structure and are arranged in a substantially two-fold rotational symmetry (2-fold rotational symmetry), so for convenience of describing the suspension holder, the structure of a single bracket unit 100 is described below, but the invention is not limited thereto. For example, in other embodiments not shown in the present invention, the two bracket units 100 of the suspension fixing base may have slightly different structures or may not be symmetrically disposed.

The bracket unit 100 is an integrally formed single-piece structure formed by processing (e.g., cutting, stamping, and bending) a sheet metal part in the present embodiment, but the invention is not limited thereto. For example, in other embodiments not shown in the present invention, the rack unit 100 may be formed by welding a plurality of metal pieces or by different materials (e.g., plastic) and processes (e.g., forging, die casting).

As shown in fig. 3 to 5, the rack unit 100 includes a main body section 1 having an elongated shape, and a suspension section 2 and a holding section 3 connected to the main body section 1. The main body section 1 defines a length direction L, and the outer edge of the main body section 1 includes two long side edges 111 parallel to the length direction L, and the suspension section 2 and the holding section 3 are respectively formed by extending (curvedly) from the two long side edges 111 of the main body section 1.

More specifically, the main body section 1 includes a substrate 11 having two long side edges 111, a selecting portion 12 connected to one end of the substrate 11, a first matching portion 13 formed at the other end of the substrate 11, and a second matching portion 14 connected to the first matching portion 13; that is, the first mating portion 13 and the second mating portion 14 are spaced from the selection portion 12 in the longitudinal direction L. In addition, in other embodiments not shown in the present invention, the main body section 1 may also be designed in sequence to omit or replace the substrate 11 with other structures.

For the convenience of the following embodiments, the main body segment 1 further defines a width direction W perpendicular to the length direction L and a height direction H perpendicular to the length direction L and the width direction W. Furthermore, the main body segment 1 defines an assembling side S1 and a suspending side S2 on opposite sides of the base plate 11 in the width direction W.

It should be noted that, in order to enable the two rack units 100 to be more firmly combined, the rack unit 100 is preferably formed with at least one of the following various configurations on (the substrate 11 of) the main body section 1, but the invention is not limited thereto. That is, in other embodiments not shown in the present invention, the main body section 1 may not have all the following configurations.

Further, the main body segment 1 (on the substrate 11) is formed with a first insertion hole 112 adjacent to the first matching portion 13, a rail hole 113 and a sliding portion 114 arranged along the length direction L, and a feedback cantilever 115 located between the rail hole 113 and the sliding portion 114. The first insertion hole 112 and the rail hole 113 are formed through the substrate 11 along the longitudinal direction L, and the sliding portion 114 and the feedback arm 115 are formed by pressing the substrate 11 and located at the assembling side S1.

In the present embodiment, the first disposing hole 112, the track hole 113, the feedback cantilever 115, and the sliding portion 114 are sequentially formed on the substrate 11 from the first matching portion 13 toward a direction of the selecting portion 12 (e.g., from left to right in fig. 5), but the invention is not limited thereto. For example, in other embodiments not shown in the present disclosure, the feedback cantilever 115 may be adjacent to the selection portion 12 and not formed between the track hole 113 and the sliding portion 114; alternatively, the sliding portion 114 is adjacent to the first introduction port 112, and the rail hole 113 is adjacent to the selection portion 12.

It should be noted that the first insertion opening 112 is sized to allow the selector 12 to pass through from the assembling side S1 to the hanging side S2, and the distance between the sliding part 114 and the selector 12 is substantially within the distance interval between the rail hole 113 and the first matching part 13. The sliding portion 114 is substantially U-shaped, and two ends thereof are connected to two opposing inner walls of a cut 116a of the substrate 11. The feedback cantilever 115 has a substantially L-shape, and one end of the feedback cantilever 115 is connected (perpendicularly) to the inner wall of the other notch 116b of the substrate 11, and the feedback cantilever 115 is formed with a convex hull 1151 at its free end (outer side). The free end of the feedback cantilever 115 is protruded out of the substrate 11 by a greater distance than the sliding portion 114 is protruded out of the substrate 11 by punching.

In order to describe the preferred structure of the substrate 11 of the main body 1 in this embodiment, the following description will describe the structure of the selection portion 12, the first matching portion 13, and the second matching portion 14 matched with the substrate 11. The selection portion 12 and the second matching portion 14 are both located at the assembling side S1 and are both cantilever-shaped.

Further, the selecting portion 12 includes an inserting cantilever 121 and a retaining structure 122 formed at a free end of the inserting cantilever 121, the inserting cantilever 121 is substantially L-shaped, one end of the inserting cantilever 121 is connected (vertically) to an end edge of the substrate 11 away from the first matching portion 13, and the free end of the inserting cantilever 121 is substantially separated from the substrate 11 by a distance in the width direction W, which is substantially the thickness of the substrate 11. The free end of the insertion cantilever 121, the free end of the feedback cantilever 115, and the free end of the second mating portion 14 all face the same side along the length direction L (e.g., toward the right side in fig. 5).

Wherein, the selection part 12 can be positioned at the first matching part 13 and the second matching part 14 in a geometric manner; that is, the selection part 12 is formed corresponding to the first and

second mating parts

13 and 14. In the present embodiment, the selecting portion 12 can be geometrically and selectively fastened to the first matching portion 13 and the second matching portion 14 by the fastening structure 122.

In more detail, the fastening structure 122 may be a protrusion in this embodiment, the first matching portion 13 and the second matching portion 14 are respectively formed with a through hole having a shape corresponding to the protrusion, and a predetermined distance D is formed between the through holes formed by the first matching portion 13 and the second matching portion 14 along the width direction W, which may be a width difference between the first structure 200 and the second structure 300 (for example, the predetermined distance D is between 8 mm and 10 mm), but the invention is not limited thereto.

For example, in other embodiments not shown in the present disclosure, the first matching portion 13 and the second matching portion 14 are each formed with a groove corresponding to the protrusion; alternatively, the fastening structure 122 may be a through hole (or a groove), and the first matching portion 13 and the second matching portion 14 are each formed with a protrusion corresponding to the through hole (or the groove).

It should be additionally noted that, as shown in fig. 3 to fig. 5, in the present embodiment, the second matching portion 14 includes a positioning section 141 facing the first matching portion 13 along the width direction W, a cantilever section 142 connecting the first matching portion 13 and the positioning section 141, and a plurality of stop sections 143 extending from the positioning section 141. The positioning section 141 and the plurality of stopping sections 143 together surround to form a second entrance 144, and the size of the second entrance 144 is suitable for the selection portion 12 to pass through. Furthermore, the through hole of the second matching part 14 is formed on the positioning section 141, and the plurality of stopping sections 143 are formed by extending from the edge of the positioning section 141 toward the first matching part 13; that is, the stopping sections 143 are substantially located between the positioning section 141 and the first matching portion 13.

In more detail, the plurality of stopping sections 143 are illustrated as two in fig. 3, and two stopping sections 143 are respectively formed by extending from two edges of the positioning section 141 adjacent to each other, and one of the stopping sections 143 faces the cantilever section 142, but the invention is not limited thereto. For example, as shown in fig. 12, the positioning section 141 and the plurality of stopping sections 143 together form a C-shaped cross section perpendicular to the length direction L; that is, the number of the plurality of stopping sections 143 is also two in fig. 12, and two stopping sections 143 are formed to face each other along the height direction H and extend from two edges of the positioning section 141 away from each other, respectively.

In addition, as shown in fig. 3 to fig. 5, in the embodiment, the first matching portion 13, the second matching portion 14, the first insertion hole 112, the second insertion hole 144, the track hole 113, the feedback cantilever 115, the sliding portion 114, and the selection portion 12 of the main body segment 1 are preferably all located on a layout plane (for example, fig. 5) substantially perpendicular to the height direction H, so as to facilitate the matching of the two bracket units 100, but the invention is not limited thereto. For example, in other embodiments not shown in the present disclosure, the main body segment 1 may only have the first matching portion 13, the second matching portion 14, and the selecting portion 12 located on the layout plane.

In addition, the hanging section 2 and the holding section 3 are respectively vertically connected to the two long side edges 111 of the main body section 1, and both the hanging section 2 and the holding section 3 are located at the hanging side S2. Wherein the hanging section 2 has a U-shaped cross section perpendicular to the length direction L, and the hanging section 2 surrounds and forms an elongated slot 21 parallel to the length direction L, and the holding section 3 is substantially sheet-shaped. Furthermore, the rack unit 100 can be installed on the first structure 200 or the second structure 300 (see fig. 1 and 2) by the elongated slot 21 of the hanging section 2, and the holding section 3 is used for installing (e.g. screwing) the suspended object, so that the suspended object is hung on the first structure 200 or the second structure 300.

The above is a description of the structure of a single rack unit 100 of the present embodiment, and the following describes the matching relationship between two rack units 100, but the present invention is not limited thereto. In the present embodiment, the two rack units 100 are disposed in a two-fold rotational symmetry manner, and the two rack units 100 are assembled with each other by their assembling sides S1.

As shown in fig. 1 and fig. 6 to 8, when the suspension holder is mounted to the first structure 200 at a first position by (the elongated slot 21 of) the two suspension sections 2, the selection portion 12 of one of the rack units 100 is positioned at the first matching portion 13 of the other rack unit 100. As shown in fig. 2 and 9 to 11, when the suspension holder is mounted to the second structure 300 with two suspension sections 2 (the elongated slots 21) and located at a second position, the selection portion 12 of one of the rack units 100 is located at the second matching portion 14 of the other rack unit 100. When the suspension holder is located at the second position, the distance between the two bracket units 100 in the width direction W is further away from the predetermined distance D than the distance between the two bracket units in the first position.

Accordingly, in the suspension type fixing base (or the bracket unit 100) of the present embodiment, the selection portion 12, which can be geometrically and selectively matched with the first matching portion 13 and the second matching portion 14, is formed on the main body section 1, so that the two bracket units 100 can be selectively suspended on the first structure 200 and the second structure 300 having different widths, thereby effectively reducing the production cost of the suspension type fixing base (or the bracket unit 100).

Further, as shown in fig. 1 and fig. 6 to 8, when the suspension type fixing seat is located at the first position, the selection portion 12 of any one of the rack units 100 passes through the first entrance 112 of another one of the rack units 100 to be located at the adjacent first matching portion 13, and the selection portion 12 (or the inserted cantilever 121) of any one of the rack units 100 is limited by the first entrance 112 in the height direction H. The first mating portion 13 of any one of the rack units 100 is sandwiched between the selection portion 12 of the other rack unit 100 and the substrate 11 in the width direction W.

As shown in fig. 2 and 9 to 11, when the suspension type fixing seat is located at the second position, the selection portion 12 of any one of the rack units 100 passes through the second entrance 144 of another one of the rack units 100 to be located at the adjacent locating section 141, and the selection portion 12 (or the inserted cantilever 121) of any one of the rack units 100 is limited by the second entrance 144 in the height direction H. The second mating portion 14 of any one of the rack units 100 is sandwiched between the selection portion 12 of the other rack unit 100 and the substrate 11 in the width direction W.

As shown in fig. 1 and 6 to 8, when the suspension holder is located at the first position, the sliding portion 114 of one of the holder units 100 is inserted through the longitudinal direction L and is blocked in the rail hole 113 of the other holder unit 100 in the height direction H, so that the two holder units 100 are more stably coupled.

Furthermore, as shown in fig. 2 and 9 to 11, when the suspended type fixing seat is located at the second position, the two feedback cantilevers 115 are spaced apart from and facing each other, and the convex hull 1151 of any one of the feedback cantilevers 115 abuts against the convex hull 1151 of the other feedback cantilever 115, in other words, the convex hull 1151 of any one of the feedback cantilevers 115 at least partially overlaps with the convex hull 1151 of the other feedback cantilever 115 in the length direction L. Accordingly, the feedback cantilever 115 is disposed on each of the bracket units 100, so as to effectively improve the hand feeling of the two bracket units 100 during assembly or disassembly.

[ example two ]

Referring to fig. 13 to fig. 15, which are two embodiments of the present invention, since the present embodiment is similar to the first embodiment, the same parts of the two embodiments are not repeated (for example, the substrate 11, the suspension section 2, and the holding section 3 of the main section 1 of the stand unit 100), and the differences between the present embodiment and the first embodiment are generally described as follows:

the bracket unit 100 is a two-piece structure in this embodiment, and the selection portion 12 includes an insertion cantilever 121 and a fixing member 123 (e.g., a screw, a bolt, or a fastener) passing through the insertion cantilever 121; that is, the latching structure 122 of the first embodiment is not formed on the selecting portion 12. Furthermore, when the suspension type fixing base is located at the first position or the second position, the fixing element 123 of any one of the bracket units 100 is inserted and fixed in the first matching portion 13 and the second matching portion 14 of the other bracket unit 100.

It should be noted that, a plurality of the stopping sections 143 are formed by extending from the edge of the positioning section 141 toward a direction away from the first matching portion 13; that is, the stopping sections 143 are substantially located on the side of the positioning section 141 away from the first matching portion 13. In more detail, the number of the stopping sections 143 is two in the embodiment, and the two stopping sections 143 face each other along the height direction H and are respectively formed by extending from two edges of the positioning section 141 away from each other, and the positioning section 141 and the stopping sections 143 together form a C-shaped cross section perpendicular to the length direction L.

[ technical effects of embodiments of the present invention ]

The disclosure is only a preferred embodiment of the invention and is not intended to limit the scope of the invention, so that all equivalent technical changes made by using the contents of the specification and the drawings are included in the scope of the invention.

Claims

1. A suspended holder, comprising:

two bracket units for selectively suspending a first structure and a second structure having different widths; wherein the width of the first structure is smaller than the width of the second structure, and each of the rack units includes:

the main body section is long and is defined with a length direction, and comprises a selection part, two long side edges, a first matching part and a second matching part which are arranged at intervals in the length direction with the selection part; and

a suspension section and a holding section respectively formed by extending from two long side edges of the main body section;

when the suspension type fixed seat is arranged on the first structure by the two suspension sections and is positioned at a first position, the selection part of any one bracket unit is positioned at the first matching part of the other bracket unit;

when the suspension type fixing seat is arranged on the second structure by the two suspension sections and is located at a second position, the selection part of any one bracket unit is located at the second matching part of the other bracket unit.

2. A suspended type fixing seat as claimed in claim 1, wherein in each of the holder units, the main body section is formed with a rail hole and a sliding portion, and the rail hole is formed in the main body section along the length direction; when the suspension type fixed seat is located at the first position, the sliding part of any one bracket unit penetrates through the track hole of the other bracket unit along the length direction; when the suspension type fixed seat is located at the second position, the interval of the two bracket units in a width direction perpendicular to the length direction is further far away from a preset distance than the interval of the two bracket units in the first position.

3. The suspended holder as claimed in claim 2, wherein when the suspended holder is at the first position, the sliding portion of one of the holder units is stopped at the track hole of the other holder unit in a height direction perpendicular to the length direction and the width direction.

4. The suspended holder of claim 1, wherein in each of the holder units, the main body segment forms a feedback arm, and the feedback arm forms a convex hull at a free end thereof; when the suspension type fixing seat is located at the second position, the two feedback cantilevers are spaced and opposite to each other, and the convex hull of any one feedback cantilever is abutted against the convex hull of the other feedback cantilever.

5. The suspension holder of claim 4, wherein in each of the holder units, the selection portion comprises an insertion cantilever, and the free end of the feedback cantilever and the free end of the insertion cantilever face the same side along the length direction.

6. A suspended holder as set forth in claim 1, wherein each of said main segments includes a base plate having two of said long side edges; in each of the rack units, the main body section defines an assembly side and a suspension side on opposite sides of the base plate in the width direction, and the selection portion and the second mating portion are both located on the assembly side.

7. The suspended holder of claim 6, wherein in each of the holder units, the selection portion is connected to one end of the substrate, the first mating portion is formed at the other end of the substrate, the second mating portion is connected to the first mating portion, and the substrate is formed with a first inlet adjacent to the first mating portion; when the suspension type fixing seat is located at the first position, the selection part of any one bracket unit passes through the first placement opening of the other bracket unit and is located at the adjacent first matching part.

8. The suspended fixing seat as claimed in claim 7, wherein in each of the holder units, the second matching portion includes a positioning section facing the first matching portion along the width direction, a cantilever section connecting the first matching portion and the positioning section, and a plurality of blocking sections extending from the positioning section, and the positioning section and the blocking sections together surround to form a second insertion opening; when the suspension type fixed seat is located at the second position, the selection part of any one bracket unit passes through the second entrance of the other bracket unit and is located at the adjacent locating section.

9. A suspended holder as claimed in claim 8, wherein in each of the holder units, the positioning segment and the plurality of stopping segments form a C-shaped cross section perpendicular to the length direction.

10. The suspension holder of claim 6, wherein when the suspension holder is at the first position, the first mating portion of any one of the holder units is clamped between the selection portion of the other holder unit and the substrate in the width direction; when the suspension type fixing seat is located at the second position, the second matching part of any one bracket unit is clamped between the selection part of the other bracket unit and the substrate in the width direction.

11. A suspended holder as claimed in claim 6, wherein in each of the holder units, the suspending section and the holding section are both located at the suspending side, the suspending section has a U-shaped cross section perpendicular to the length direction, and the suspending section surrounds and forms an elongated slot parallel to the length direction.

12. A suspended holder as set forth in claim 1, wherein each of said bracket units is of an integrally formed one-piece construction made of a sheet metal member, and two of said bracket units are rotationally symmetrical in twofold.

13. The suspension type fixing seat as claimed in claim 1, wherein in each of the bracket units, the selection part comprises an insertion cantilever and a fixing part passing through the insertion cantilever; when the suspension type fixing seat is located at the first position or the second position, the fixing piece of any one of the bracket units is fixedly arranged on the first matching part and the second matching part of the other bracket unit in a penetrating way.

14. A bracket unit of a suspension type fixing seat comprises:

the selection part can be positioned on the first matching part and the second matching part in a geometric mode.

15. The holder unit of the suspended holder as claimed in claim 14, wherein the main body section includes a base plate having two long side edges; the main body section is defined with an assembling side and a hanging side which are positioned at two opposite sides of the base plate in a width direction perpendicular to the length direction, and the selecting part and the second matching part are positioned at the assembling side.

16. The holder unit of the suspended type fixing holder as claimed in claim 15, wherein the selection portion is connected to one end of the substrate, the first matching portion is formed at the other end of the substrate, the second matching portion is connected to the first matching portion, and the substrate is formed with a first inlet adjacent to the first matching portion.

17. The holder unit of the suspended type fixing holder as claimed in claim 16, wherein the second matching portion includes a positioning section facing the first matching portion along the width direction, a cantilever section connecting the first matching portion and the positioning section, and a plurality of blocking sections extending from the positioning section, and the positioning section and the blocking sections together enclose a second insertion opening.

18. The holder unit of a suspended holder as claimed in claim 15, wherein the suspending section and the holding section are both located at the suspending side, the suspending section has a U-shaped cross section perpendicular to the length direction, and the suspending section surrounds and forms an elongated slot parallel to the length direction.

19. The holder unit of a suspended anchor block of claim 14, wherein the holder unit is of one-piece construction integrally formed from a sheet metal piece.