TW202326343A - Rotating base - Google Patents

Abstract

A rotating base having a first body, a second body, a gear and a tenon is provided. The first body has a frame extended two shaft blocks. The second body has a through opening and two fixed pieces arranged on two sides of the through opening. The fixed pieces have two opposite transversely long holes. The gear is fixed to one of the first body and the second body to rotate with, and the tenon is extended from the other one of the first body and the second body. The frame is inserted through the through opening, the shaft blocks are movably inserted through the transversely long holes, and the gear is engaged with the tenon in multiple stages to make the second body to rotate relative to the first body. The rotating base is therefore simple in structure, not easy to wear, long service and low cost.

Description

swivel base

The present invention relates to a base structure with steering function, and in particular to a rotating base.

In today's human life, for the convenience of users to watch, many technological products, such as digital TVs, computer monitors, etc., are usually equipped with a rotating base, so that users can adjust the face of the technological product arbitrarily through the rotating base. direction.

However, the steering structure of the rotary base adopts the multi-section stopper structure, which has the problem of complicated disassembly, and the use of hinge shafts or universal ball joints has the problems of easy wear and short life. Therefore, how to design a rotating base with a simple structure, low wear resistance, and long service life has become a topic to be discussed in the industry.

In view of this, the inventor of the present invention aimed at the above-mentioned prior art, devoted himself to research and combined with the application of theories, and tried his best to solve the above-mentioned problems, which became the goal of the inventor's development.

The invention provides a rotary base, which utilizes the cooperation of simple components to achieve the effect that the second body can rotate relative to the first body, so that the rotary base has the advantages of simple structure, not easy to wear, long service life and low cost.

In an embodiment of the present invention, the present invention provides a rotary base, comprising: a first body with a bracket, and two shaft blocks protruding from both sides of the bracket; a second body with a through opening and a configuration Two fixed pieces on both sides of the through opening, the two fixed pieces are provided with two opposite transverse long holes; at least one gear is fixed to one of the first body and the second body and can follow the first One of the body and the second body rotates; and at least one tenon extends from the other of the first body and the second body; The shaft block can be movably connected to the two transverse long holes, and the at least one gear can be engaged with the at least one tenon in multiple stages, so that the second body can rotate relative to the first body.

In an embodiment of the present invention, the present invention provides a rotary base, comprising: a first body, having a bracket and at least one tenon disposed on at least one side of the bracket, and two shaft blocks protruding from both sides of the bracket ; A second body is provided with a through opening and has two fixed pieces arranged on both sides of the through opening, and the two fixed pieces are provided with two opposite transverse long holes; at least one gear is pivotally connected to at least one of the two fixed pieces one and can rotate relative to the fixed piece; and at least one multi-segment engaging structure is formed between at least one of the two fixed pieces and the at least one gear, and the at least one multi-segment engaging structure is connected to the fixed A ball piece of one of the fixed piece and the gear and a plurality of slots opened from the other of the fixed piece and the gear; wherein, the bracket is passed through the through opening, and the two shaft pieces can be moved Passing through the two transverse long holes, the at least one gear and the at least one tenon are engaged with each other, and the ball can be engaged with one of the engaging slots, so that the second body can rotate relative to the first body.

Based on the above, by using the bracket of the first body to pass through the through opening of the second body, the two shaft blocks of the bracket can be movably connected to the two transverse long holes of the second body, and the connection between the first body, the second body and the gear Through the cooperation of simple components to achieve multi-stage engagement, the second body can adjust multi-stage angles relative to the first body, so that the rotating base has the advantages of simple structure, not easy to wear, long service life and low cost.

The detailed description and technical content of the present invention will be described as follows with accompanying drawings, but the attached drawings are only for illustration purposes and are not intended to limit the present invention.

Please refer to Fig. 1 to Fig. 11, the present invention provides a first embodiment of a rotary base, this rotary base 10 mainly includes a first body 1, a second body 2, one or a plurality of gears 3 and a Or plural tenon 12.

As shown in Figures 1 to 2 and Figures 5 to 11, the first body 1 has a bracket 11, and two shaft blocks 111 protrude outward from both sides of the bracket 11. The first body 1 is provided with at least At least one lower groove 13 on one side. In addition, the bracket 11 is two elastic arms 112 extending upward from the top surface of the first body 1, the two shaft blocks 111 protrude from the outside of the two elastic arms 112, and the first body 1 is provided with two elastic arms 112 arranged on the outside of the two elastic arms 112. Through the opening 14 , the first body 1 is further provided with two semicircular grooves 15 arranged outside the bracket 11 , that is, the first body 1 is provided with two semicircular grooves 15 arranged outside the two elastic arms 112 .

As shown in Figure 1, Figure 3 to Figure 11, the second body 2 is provided with a through opening 21 and is extended with two fixing pieces 22 arranged on both sides of the through opening 21, and the two fixing pieces 22 are provided with two opposite transverse long holes 221 .

In addition, the second body 2 is extended with two half-cylinders 23 arranged outside the two fixing pieces 22, each half-cylinder 23 is provided with a plurality of positioning holes 231, and each elastic arm 112 and each fixing piece 22 have corresponding hollow openings 14. A spacing s for the configuration.

Furthermore, the first body 1 of this embodiment is a base, which can be fixed on a wall or placed on a table, and the second body 2 is a carrier board, which can be, for example, the shell of a product such as a backboard part of the body, but not limited thereto.

As shown in Figures 3 to 4, Figures 6 to 9, and Figure 11, the gear 3 is fixed on one of the first body 1 and the second body 2 and can follow one of the first body 1 and the second body 2. One of them rotates.

As shown in FIGS. 1 to 2 , and FIGS. 8 to 9 , the tenon 12 is formed by extending from the other of the first body 1 and the second body 2 , and the tenon 12 can engage with a protruding tooth 31 .

Wherein, the tenon 12 of this embodiment extends from the first body 1, and the tenon 12 is one or two convex points 121 protruding from the bottom of the sunken groove 13. The gear 3 is fixed on the second body 2 and can follow the second body 2. Rotate and be accommodated in the sunken groove 13. Of course, those who are familiar with the mechanism designer can also think of the design method of exchanging positions. The tenon 12 is designed to extend from the second body 2, and the gear 3 is fixed to the first body 1 and can follow the first body. The main body 1 rotates, so it is not limited thereto.

The details are as follows, the gear 3 of this embodiment is integrally formed from the second body 2, that is, the gear 3 and the second body 2 are components integrated with each other. The two elastic arms 112 , the two hollow openings 14 , the two sunken grooves 13 , and the two semicircular grooves 15 are arranged on the first body 1 sequentially from inside to outside, but it is not limited thereto.

Also, the outer peripheral edge of the gear 3 has a plurality of protruding teeth 31, and the number of protruding points 121 of each tenon 12 is two, and the two protruding points 121 of the tenon 12 are engaged with one protruding tooth 31 so that the protruding teeth 31 can fit together. And it is temporarily limited between two protruding points 121 , but the number of protruding points 121 for each tenon 12 can also be one, which is not limited by this embodiment.

In addition, the bracket 11 is installed through the through opening 21, and the two shaft blocks 111 are movably connected through the two transverse long holes 221, and the second body 2 can be moved to drive the tenon 12 to engage with a protruding tooth 31, so that the gear 3 can engage with the tenon 12 in multiple stages, so that the second body 2 can rotate relative to the first body 1 .

As shown in Figures 1 to 2, Figures 6 to 7, and Figures 10 to 11, the rotary base 10 of the present invention further includes two pogo pins (POGO PIN) 5, and the two pogo pins 5 are accommodated inside the first body 1 And protruding from the bottom of the two semicircular grooves 15 , each pogo pin 5 can engage with one of the positioning holes 231 , so that the pogo pin 5 can engage with multiple positioning holes 231 in multiple stages.

As shown in Figures 6 to 11, the use state of the rotary base 10 of the present invention is that the bracket 11 of the first body 1 is passed through the through opening 21 of the second body 2, and the two shaft blocks 111 of the bracket 11 are movable. through the two transverse long holes 221 of the second body 2, and through the gear 3 fixed to the second body 2, it can engage with the tenon 12 of the first body 1 in multiple stages, so that the second body 2 is relatively opposite to the first body. When the main body 1 is rotated, a vibrating feel is generated, allowing the user to have different position feedback feel when adjusting. Therefore, through the cooperation of the above simple components, the second body 2 can adjust the angle relative to the first body 1, so that the rotating base 10 has the advantages of simple structure, not easy to wear, long service life and low cost.

In addition, as shown in Figures 8 to 9, the second body 2 rotates relative to the first body 1, and the process of driving the tenon 12 to slide along the plurality of protruding teeth 31 will produce a sense of frustration, thereby increasing the adjustment of the angle of the second body 2. feel, and remind the user that the second body 2 has been adjusted to a predetermined positioning angle.

Furthermore, as shown in Figure 10, the two pogo pins 5 are accommodated inside the first body 1 and protrude from the first body 1, and each pogo pin 5 can select a positioning hole 231 of the second body 2 to engage, thereby allowing The pogo pin 5 securely locks the angle of the second body 2, and at the same time, a "click" sound will be generated when the pogo pin 5 is raised and lowered, which can help inform the user that the second body 2 has rotated to a predetermined position.

Again, as shown in Figure 11, when a push rod 100 is inserted into the air-through opening 14 of the first body 1, the push rod 100 can be inserted into the space s and positioned between the elastic arm 112 and the fixed piece 22, and then through the push rod 100 The rod 100 continues to go deep and presses against the elastic arm 112, so that the distance s between the elastic arm 112 and the fixed piece 22 is enlarged, so that the shaft block 111 can be separated from the horizontal long hole 221, so that the first body 1 and the second body 2 can interact with each other. Separated to achieve the feature that the rotating base 10 is convenient for users to disassemble by themselves.

Please refer to Fig. 12 to Fig. 15, which is the second embodiment of the rotary base 10 of the present invention. The embodiment of Fig. 12 to Fig. 15 is substantially the same as the embodiment of Fig. 1 to Fig. 11, and the implementation of Fig. 12 to Fig. 15 The difference between this example and the embodiment shown in FIGS. 1 to 11 is that the gear 3 and the second body 2 are two separate components.

Further description is as follows, the number of tenon 12, sunken groove 13 and gear 3 in this embodiment is one respectively, and the gear 3 can be locked on the outside of one of the fixed pieces 22 through screws, bolts or buckles. In this way, the same functions and effects as those of the embodiment shown in FIG. 1 to FIG. 11 can be achieved.

In addition, the number of the tenon 12, the sunken groove 13 and the gear 3 is not limited by this embodiment, the number of the tenon 12, the sunken groove 13 and the gear 3 can also be two respectively, two tenons 12 and two sunken grooves 13 Arranged on both sides of the bracket 11, the two gears 3 can be locked on the outer sides of the two fixing pieces 22 through screws, bolts or buckles.

Please refer to Fig. 16, which is the third embodiment of the rotary base 10 of the present invention. The embodiment in Fig. 16 is substantially the same as the embodiment in Figs. The differences are explained below.

Compared with Fig. 7, the first body 1 of the embodiment in Fig. 16 is a carrier board, which can be a part of the shell of products such as backboards, and the bracket 11 is changed from the first body 1 (carrier board) Two elastic arms 112 extending downwards, two shaft blocks 111 protrude from the outside of the two elastic arms 112; the second body 2 is a base, the base can be fixed on the wall or placed on the table, but not as a Restriction, the through opening 21 and the two fixing pieces 22 extending on both sides of the through opening 21 are arranged on the second body 2 (base), wherein the two fixing pieces 22 are also provided with two opposite transverse long holes 221 .

Please refer to Figure 17 to Figure 26, the present invention provides a fourth embodiment of a rotary base, this rotary base 10 mainly includes a first body 1, a second body 2, one or a plurality of gears 3 and a Or a plurality of multi-segment engaging structures 4 .

As shown in FIGS. 17 to 26 , the first body 1 has a bracket 11 and at least one tenon 12 disposed on at least one side of the bracket 11 . Two shaft blocks 111 protrude outward from both sides of the bracket 11 .

In addition, the first body 1 is provided with at least one sunken groove 13 disposed on at least one side of the bracket 11 , and the tenon 12 is one or two protrusions 121 protruding from the bottom of the sunken groove 13 .

Moreover, the bracket 11 is two elastic arms 112 extending upward from the top surface of the first body 1, the two shaft blocks 111 protrude from the outside of the two elastic arms 112, and the first body 1 is provided with a Two hollow openings 14 , the first body 1 is further provided with two semicircular grooves 15 arranged outside the bracket 11 , that is, the first body 1 is provided with two semicircular grooves 15 arranged outside the two elastic arms 112 .

As shown in FIG. 17 to FIG. 26 , the second body 2 is provided with a through opening 21 and extended with two fixing pieces 22 disposed on both sides of the through opening 21 , and the two fixing pieces 22 are provided with two opposite transverse long holes 221 .

In addition, the second body 2 is extended with two half-cylinders 23 arranged outside the two fixing pieces 22, each half-cylinder 23 is provided with a plurality of positioning holes 231, and each elastic arm 112 and each fixing piece 22 have corresponding hollow openings 14. A spacing s for the configuration.

Furthermore, the first body 1 of this embodiment is a base, which can be fixed on a wall or placed on a table, and the second body 2 is a carrier board, which can be, for example, a backboard and other products. A part of the housing, but not limited thereto, the above-mentioned first body 1 can also be a carrier board, and the second body 2 can also be a base.

As shown in Figures 17 to 23 and Figures 25 to 26, at least one gear 3 is pivotally connected to at least one of the two fixed pieces 22 and can rotate relative to the fixed piece 22, the gear 3 is accommodated in the sunken groove 13, and the gear 3 The outer peripheral edge has a plurality of protruding teeth 31 , and the tenon 12 can engage with one of the protruding teeth 31 .

The details are as follows, the number of tenon 12, sunken groove 13 and gear 3 in this embodiment is one respectively, two elastic arms 112, two hollow openings 14, sunken groove 13, and two semicircular grooves 15 are in order from inside to outside. It is arranged on the first body 1, but the number of the tenon 12, the sunken groove 13 and the gear 3 is not limited by this embodiment, and the number of the tenon 12, the sunken groove 13 and the gear 3 can also be two or two respectively. The tenons 12 and the two sunken grooves 13 are arranged on both sides of the bracket 11 , and the two gears 3 are pivotally connected to the outer sides of the two fixing pieces 22 .

Also, the number of protruding points 121 of each tenon 12 is two, and the two protruding points 121 of the tenon 12 cooperate with one protruding tooth 31 to engage, so that the protruding tooth 31 can fit and be temporarily limited between the two protruding points 121 interval, but the number of protruding points 121 of each tenon 12 can also be one, which is not limited by this embodiment.

As shown in Figures 23 to 24, at least one multi-segment engagement structure 4 is formed between at least one of the two fixed pieces 22 and at least one gear 3, and the multi-segment engagement structure 4 is included in the connection between the fixed piece 22 and the gear 3 A ball block 41 of one of them and a plurality of draw-in slots 42 opened from the other of the fixed piece 22 and the gear 3 .

In addition, the ball piece 41 of the present embodiment extends from one of the fixed piece 22 and the gear 3, that is, the ball piece 41 and the fixed piece 22 or the gear 3 are integral elements of each other, and the plurality of draw-in grooves 42 extend from the fixed piece 22 and the gear. The other of the 3 is opened. Wherein, the ball block 41 in this embodiment extends from the gear 3 , and the plurality of locking grooves 42 are opened from the fixing piece 22 , but this is not a limitation.

In addition, the bracket 11 is installed through the through opening 21, and the two shaft blocks 111 are movably connected to the two transverse long holes 221. The gear 3 and the tenon 12 are engaged with each other, and the second body 2 can be moved to drive the ball block 41. Selecting one of the locking slots 42 engages, so that the ball block 41 can be engaged with multiple locking slots 42 in a multi-stage manner, so that the second body 2 can rotate relative to the first body 1 .

As shown in Figure 17, Figure 20 to Figure 21, Figure 25 to Figure 26, the rotary base 10 of the present invention further includes two pogo pins (POGO PIN) 5, the two pogo pins 5 are accommodated inside the first body 1 and protrude from the At the bottom of the two semicircular grooves 15 , each pogo pin 5 can engage with one positioning hole 231 , so that the pogo pin 5 can engage with multiple positioning holes 231 in multiple stages.

As shown in Figures 20 to 26, the use state of the rotating base 10 of the present invention is that the bracket 11 of the first body 1 is used to pass through the opening 21 of the second body 2, and the two shaft blocks 111 of the bracket 11 are movable. The ball block 41 of the gear 3 of the first body 1 can be connected with the plurality of fixed pieces 22 of the second body 2 through the two transverse long holes 221 of the second body 2 in the same way, and is held by the tenon 12. The locking slot 42 is engaged in multiple stages so that the second body 2 can rotate relative to the first body 1 . Therefore, through the cooperation of the above simple components, the second body 2 can adjust the angle relative to the first body 1, so that the rotating base 10 has the advantages of simple structure, not easy to wear, long service life and low cost.

In addition, as shown in Figures 23 to 24, the second body 2 rotates relative to the first body 1, and the process of driving the ball block 41 to slide along the plurality of slots 42 will produce a sense of frustration, thereby increasing the adjustment of the angle of the second body 2. feel, and remind the user that the second body 2 has been adjusted to a predetermined positioning angle.

Furthermore, as shown in Figure 25, the two pogo pins 5 are accommodated inside the first body 1 and protrude from the first body 1, and each pogo pin 5 can select a positioning hole 231 of the second body 2 to engage, thereby allowing The pogo pin 5 securely locks the angle of the second body 2, and at the same time, a "click" sound will be generated when the pogo pin 5 is raised and lowered, which can help inform the user that the second body 2 has rotated to a predetermined position.

Again, as shown in Figure 26, when a push rod 100 is inserted into the through hole 14 of the first body 1, the push rod 100 can be inserted into the distance s and positioned between the elastic arm 112 and the fixed piece 22, and then through the push rod 100 The rod 100 continues to go deep and presses against the elastic arm 112, so that the distance s between the elastic arm 112 and the fixed piece 22 is enlarged, so that the shaft block 111 can be separated from the horizontal long hole 221, so that the first body 1 and the second body 2 can interact with each other. Separated to achieve the feature that the rotating base 10 is convenient for users to disassemble by themselves.

Please refer to Fig. 27, which is the fifth embodiment of the rotating base 10 of the present invention. The embodiment in Fig. 27 is substantially the same as the embodiment in Fig. 17 to Fig. 26, and the embodiment in Fig. 27 is the same as that in Fig. 17 to Fig. 26 The difference is that the ball block 41 ′, the fixed plate 22 and the gear 3 are three separate components.

Wherein, the multi-stage engagement structure 4 includes a ball block 41' connected to one of the fixed piece 22 and the gear 3, and a plurality of slots 42' opened from the other of the fixed piece 22 and the gear 3.

Further description is as follows, the multi-stage engaging structure 4 of this embodiment further includes a mounting hole 43 opened from one of the fixed plate 22 and the gear 3, and the ball block 41' is accommodated in the mounting hole 43 and can be opposite to the mounting hole 43 Turning, a plurality of card slots 42 ′ are opened from the other one of the fixed piece 22 and the gear 3 . Wherein, in this embodiment, the mounting hole 43 is opened from the gear 3, and the plurality of slots 42 are opened from the fixing piece 22, but this is not a limitation. In this way, the same functions and effects as those of the embodiment shown in FIG. 17 to FIG. 26 can be achieved.

To sum up, the rotating base of the present invention has never been seen in similar products and public use, and has industrial applicability, novelty and progress, and fully meets the requirements for patent application. Please file an application in accordance with the Patent Law. Please check carefully And granted the patent of this case to protect the inventor's rights.

10: Rotating base 1: The first body 11: Bracket 111: shaft block 112: elastic arm 12: tenon 121: bump 13: sunken groove 14: Hollow port 15: Semicircle groove 2: Second body 21: through opening 22:Fixer 221: Horizontal long hole 23: half cylinder 231: positioning hole 3: gear 31: Convex teeth 4: Multi-segment snap-in structure 41, 41': ball block 42, 42': card slot 43: Placement hole 5: pogo pin s: spacing 100: putter

Fig. 1 is a three-dimensional exploded view of the first embodiment of the rotary base of the present invention.

Fig. 2 is an enlarged schematic diagram of the area selected by the dotted line in Fig. 1 of the present invention.

Fig. 3 is a three-dimensional schematic view of the first embodiment of the second body of the present invention.

Fig. 4 is an enlarged schematic diagram of the area selected by the dotted line in Fig. 3 of the present invention.

Fig. 5 is a three-dimensional assembled view of the first embodiment of the rotary base of the present invention.

Fig. 6 is a sectional combined view of the first embodiment of the rotary base of the present invention.

Fig. 7 is an enlarged schematic diagram of the area selected by the dotted line in Fig. 6 of the present invention.

Fig. 8 is another cross-sectional combined view of the first embodiment of the rotary base of the present invention.

Fig. 9 is an enlarged schematic diagram of the area selected by the dotted line in Fig. 8 of the present invention.

Fig. 10 is a partially enlarged sectional view of the first embodiment of the rotary base of the present invention.

Fig. 11 is a schematic diagram of the use state of the first embodiment of the rotary base of the present invention.

Fig. 12 is a three-dimensional assembled view of the second embodiment of the rotary base of the present invention.

Fig. 13 is an enlarged schematic diagram of the area selected by the dotted line in Fig. 12 of the present invention.

Fig. 14 is a partially enlarged sectional view of the second embodiment of the rotary base of the present invention.

Fig. 15 is another partially enlarged sectional view of the second embodiment of the rotary base of the present invention.

Fig. 16 is a partially enlarged sectional view of the third embodiment of the rotary base of the present invention.

Fig. 17 is a three-dimensional exploded view of the fourth embodiment of the rotary base of the present invention.

Fig. 18 is a three-dimensional assembled view of the fourth embodiment of the rotary base of the present invention.

Fig. 19 is an enlarged schematic diagram of the area selected by the dotted line in Fig. 18 of the present invention.

Fig. 20 is a sectional combined view of the fourth embodiment of the rotary base of the present invention.

Fig. 21 is an enlarged schematic diagram of the area selected by the dotted line in Fig. 20 of the present invention.

Fig. 22 is a partially enlarged sectional view of the fourth embodiment of the rotary base of the present invention.

Fig. 23 is another partially enlarged sectional view of the fourth embodiment of the rotary base of the present invention.

Fig. 24 is another partially enlarged sectional view of the fourth embodiment of the rotary base of the present invention.

Fig. 25 is another partially enlarged sectional view of the fourth embodiment of the rotary base of the present invention.

Fig. 26 is a schematic diagram of the use state of the fourth embodiment of the rotary base of the present invention.

Fig. 27 is a partially enlarged sectional view of the fifth embodiment of the rotary base of the present invention.

10: Rotating base

1: The first body

11: Bracket

111: shaft block

112: elastic arm

13: sunken groove

14: Hollow port

2: Second body

21: through opening

22:Fixer

221: Horizontal long hole

23: half cylinder

231: positioning hole

3: gear

5: pogo pin

s: spacing

Claims (16)

A swivel base comprising: A first body has a bracket, and two shaft blocks protrude from both sides of the bracket; A second body is provided with a through opening and has two fixing pieces arranged on both sides of the through opening, and the two fixing pieces are provided with two opposite transverse long holes; at least one gear, fixed to one of the first body and the second body, and able to follow the rotation of one of the first body and the second body; and at least one tenon extending from the other of the first body and the second body; Wherein, the bracket is passed through the through opening, the two shaft blocks are movably connected through the two transverse long holes, and the at least one gear can be engaged with the at least one tenon in multiple stages, so that the second body can Rotate relative to the first body. The rotary base according to claim 1, wherein the outer peripheral edge of the at least one gear has a plurality of protruding teeth, and the at least one tenon can engage with one of the protruding teeth. The rotating base according to claim 2, wherein the first body is provided with at least one sinking groove arranged on at least one side of the bracket, and the at least one gear is fixed to the second body and accommodated in the at least one sinking groove , the at least one tenon is two protruding points protruding from the bottom of the at least one lower groove and capable of engaging with one of the protruding teeth. The rotary base as described in claim 3, wherein the number of tenon, sunken groove and gear is one respectively, and the gear is locked on one of the fixed pieces. The rotary base as described in claim 3, wherein the number of tenons, sunken grooves and gears are two respectively, the two tenons and the two sunken grooves are arranged on both sides of the bracket, and the two gears are locked on the two Fixed sheet. The rotary base as claimed in claim 1, wherein the at least one gear is integrally formed from the second body. The rotating base as described in Claim 1, wherein the support is two elastic arms extending from the first body, and the first body is provided with two hollow openings arranged on the outside of the two elastic arms, each of the elastic arms and each There is a distance between the fixing pieces corresponding to each of the hollow openings, and the two shaft blocks protrude from the outer sides of the two elastic arms. The rotary base as described in claim 1 further includes two pogo pins, the first body is provided with two semicircular grooves arranged on the outside of the bracket, and the second body is extended with two grooves arranged on the outside of the two fixing pieces. Each of the semi-cylinders is provided with a plurality of positioning holes, the two pogo pins are accommodated inside the first body and protrude from the bottom of the two semicircular grooves, and each of the pogo pins can engage with one of the positioning holes. A swivel base comprising: A first body, which has a bracket and at least one tenon arranged on at least one side of the bracket, and two shaft blocks protrude from both sides of the bracket; A second body is provided with a through opening and has two fixing pieces arranged on both sides of the through opening, and the two fixing pieces are provided with two opposite transverse long holes; At least one gear is pivotally connected to at least one of the two fixed pieces and can rotate relative to the fixed piece; and At least one multi-segment engaging structure is formed between at least one of the two fixed pieces and the at least one gear, and the at least one multi-segment engaging structure includes a a ball block and a plurality of slots opened from the other of the fixed piece and the gear; Wherein, the bracket is installed on the through opening, the two shaft blocks can be movably connected to the two transverse long holes, the at least one gear and the at least one tenon are engaged with each other, and the ball block can select one of the engaging slots. engaged so that the second body can rotate relative to the first body. The rotary base according to claim 9, wherein the outer peripheral edge of the at least one gear has a plurality of protruding teeth, and the at least one tenon can engage with one of the protruding teeth. The rotary base according to claim 10, wherein the first body is provided with at least one sinking groove arranged on at least one side of the bracket, the at least one gear is accommodated in the at least one sinking groove, and the at least one tenon is Two protruding points protrude from the bottom of the at least one lower groove and can be engaged with one of the protruding teeth. The rotary base as described in claim 11, wherein the number of tenons, sunken grooves and gears are two respectively, the two tenons and the two sunken grooves are arranged on both sides of the bracket, and the two gears are pivotally connected to the two Fixed sheet. The rotating base as described in claim 9, wherein the support is two elastic arms extending from the first body, and the first body is provided with two hollow openings arranged on the outside of the two elastic arms, each of the elastic arms and each There is a distance between the fixing pieces corresponding to each of the hollow openings, and the two shaft blocks protrude from the outer sides of the two elastic arms. The rotary base as described in Claim 9 further includes two pogo pins, the first body is provided with two semicircular grooves arranged on the outside of the bracket, and the second body is extended with two grooves arranged on the outside of the two fixing pieces. Each of the semi-cylinders is provided with a plurality of positioning holes, the two pogo pins are accommodated inside the first body and protrude from the bottom of the two semicircular grooves, and each of the pogo pins can engage with one of the positioning holes. The rotary base according to claim 9, wherein the ball extends from one of the fixed plate and the gear, and the plurality of slots are opened from the other of the fixed plate and the gear. The rotating base according to claim 9, wherein the at least one multi-segment engaging structure further includes a placement hole opened from one of the fixed plate and the gear, the ball is accommodated in the placement hole and It can be rotated relative to the installation hole, and the plurality of slots are opened from the other one of the fixed piece and the gear.

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