TWM608024U - Foldable tripod stand - Google Patents

Abstract

This creation is about a collapsible foot for carrying a supporting module. The collapsible foot base includes a base, a foot module and a stopper. A plurality of supporting legs of the supporting leg module are provided with the base body, and each supporting leg has a top portion and a shaft connecting member. The stopper is arranged in the seat and has a plurality of first abutting parts, a plurality of second abutting parts and a pressing part. Wherein, when the supporting legs are in an unfolded position, the stopper is in a first position, the pressing portion protrudes from the seat body, and the abutting top is matched with the first abutting portion and the seat body While restricting the pivoting of the axle connecting member, when any one of the supporting legs is in a folded position, the abutting portion abuts against the second abutting portion, so that the stopper is fixed at a second position, The pressing part does not protrude from the seat body.

Description

Foldable foot

This creation relates to a collapsible foot, especially a collapsible foot used in a support module carrying an electronic device.

The conventional folding tripod usually has a main bracket and a plurality of supporting legs pivotally connected to the main bracket. Buttons are usually arranged at the pivot joints of the main bracket and the supporting legs and a locking structure is arranged. After the user presses the button, each supporting leg It can be pivoted relative to the main bracket to be folded or unfolded. When all the supporting legs are folded, a latch stop button of the locking structure must be further used to prevent the button from protruding from the main bracket to avoid accidental collision by the user. Damage the button, thereby improving the safety of use.

One of the main purposes of this creation is to provide a collapsible foot. When the feet of the collapsible foot are in the fully collapsed state, the operating button is hidden, and when in the fully expanded state, the operating button is hidden. The button will be exposed for pressing.

When one of the feet of the collapsible foot is in the folded state, the pressing part of the stopper can be hidden in the seat body, and the other feet will not be restricted by the stopper, so that the user can Continue to fold the other feet easily.

Another purpose of this creation is to provide a collapsible foot with a plurality of pivot structures, through which a pressure shaft group and a friction shaft group of the pivot structure can provide a positive force for the shaft joints of each foot , So that the user can adjust the hand feel of each foot by adjusting the positive force.

To achieve the above purpose, this creation provides a collapsible foot for carrying a supporting module. The collapsible foot base includes a base, a foot module, a stopper and an elastic element. The base body is connected with the supporting module and has an accommodating space. The leg module is arranged on the base and includes a plurality of legs. The legs are arranged around the base at intervals and can be changed between an unfolded position and a folded position. Each leg They respectively have a top part, a shaft connecting piece and a foot piece connected to each other. The stopper is disposed on the base and can move between a first position and a second position, and has a central body, a plurality of first abutting parts and a plurality of second abutting parts, one end of the central body A pressing portion is formed, and the first and second abutting portions respectively extend from the central body, and are arranged at intervals corresponding to the supporting legs. The elastic member abuts against the seat body and the stopper, and constantly provides an elastic force to the stopper, so that the stopper tends to the first position. Wherein, when the supporting legs are all located in the unfolded position, the stopper is located in the first position, the pressing portion extends from the accommodating space and protrudes out of the seat body, the abutting top and the The first abutting portion and the seat body cooperate to restrict the pivoting of the pivoting member. When any one of the supporting legs is in the collapsed position, the abutting top abuts against the second abutting portion, so that The stopper is fixed at the second position, and the pressing portion is accommodated in the accommodating space and does not protrude from the seat body.

When an external force is applied to move the stopper from the first position to the second position, each of the feet can pivot between the folded position and the unfolded position relative to the seat. When all pivoted to the unfolding position, the abutting top portions are separated from the second abutting portion, and the stopper returns to the first position.

Each of the abutting tops has a first abutting area and a second abutting area, and the first abutting area is connected between the shaft connecting member and the second abutting area, when the supporting leg In the unfolded position, the first abutment area can bear against the first abutment portion, and when the support leg is in the collapsed position, the first abutment area is far away from the first abutment portion , And the second abutting area bears against the second abutting portion.

Each of the abutting tops has a bump, and the bumps are respectively formed on the second abutting area. When any one of the legs is in the unfolded position, the corresponding bump abuts against An inner side wall of the seat body.

The central body is further formed with a plurality of relief grooves, and each of the relief grooves is located on one side of each of the second abutting parts. When the supporting leg pivots relative to the seat body, the convex block is located at the Said to move in the slot.

The stopper further has at least one stopper. The stopper is formed on the central body and extends toward the supporting leg. When the stopper is in the first position, the stopper abuts against the seat body. An inner bottom wall.

The leg module can be changed between a fully expanded state and a fully collapsed state. When the leg module is in the fully expanded state, the legs are all located at the expanded position, and when the leg module is in the fully expanded state, In the fully folded state, the supporting legs are all located at the folded position.

Each of the leg pieces has a connecting end and an extending end, and the connecting ends are respectively connected to the shaft connecting piece. When the leg module is in the fully expanded state, the extending ends are far away from the supporting module When the supporting leg module is in the fully folded state, the extension ends are adjacent to the supporting module.

The seat body defines a central axis, and the supporting legs are arranged at intervals in a circumferential direction with the central axis as the center.

The seat body further has a plurality of joint parts and a plurality of accommodating grooves formed on the joint part, the joint parts are arranged at intervals in the circumferential direction with the central axis as the center, the accommodating groove and the accommodating space Connected, the shaft connecting piece is located in the accommodating groove.

The collapsible foot base of this creation further includes a plurality of pivot structures. Each of the pivot structures has a pressure shaft group and a friction module. The pressure shaft groups are respectively penetrated through the seat body and the friction module. The module and the shaft connecting piece, the shaft connecting piece rotates relative to the seat body with the corresponding pressing shaft group as the axis, and the pressing shaft group pushes the corresponding friction module to make the The friction module provides a positive force to the corresponding shaft joint.

Each of the pressurizing shaft groups has a first shaft and a second shaft. The first shaft and the second shaft face each other and pass through the seat and the shaft connecting member respectively. Screw connection to clamp the friction module and the shaft joint together.

The first shaft has a first head, a first rod and a threaded groove, the first head is connected to the first rod, and the threaded groove is formed in the first rod , The second shaft member has a second head and a second rod, the second head is connected to the second rod, and the friction module has a first friction member and a first rod. Two friction members, the first friction member abuts between the first head and the axle connecting member, the first rod body passes through the first friction member and the axle connecting member, so The second friction member abuts between the second head and the shaft connecting member, and the second rod body passes through the second friction member and is screwed into the thread groove.

The closer the first head and correspondingly the second head are, the stronger the clamping force that the first shaft and the second shaft apply to the friction module at the same time, The greater the positive force exerted by the friction module on the shaft joint, when the shaft joint rotates with respect to the joint with the pressing shaft as the axis, the shaft joint and the shaft The frictional force generated between the friction modules is greater.

As shown in Figures 1 and 2, the present invention provides a collapsible foot 1000 for carrying a supporting module 2000, which can be used to carry an electronic device such as a display (not shown) , The collapsible foot base 1000 includes a base body 1, a foot module 2, a stopper 3, three elastic members 4, and a three-pivot structure 5.

As shown in FIGS. 3 and 4, the base 1 is connected to the support module 2000 and defines a central axis A, and has a base 11, three joints 12, three accommodating grooves 13 and an accommodating space 14. The base 11 has an inner side wall 111, an inner bottom wall 112, and an inner top wall 113. The inner side wall 111, the inner bottom wall 112, and the inner top wall 113 jointly define an accommodating space 14 for the stopper 3 to be accommodated. 12 are arranged at intervals in a circumferential direction C centered on the central axis A, and each accommodating groove 13 is formed on each joint 12 and communicates with the accommodating space 14.

The leg module 2 can be changed between a fully expanded state (refer to FIG. 1) and a fully collapsed state (refer to FIG. 5). In detail, as shown in FIGS. 1 to 2 and 5 to 6, the leg module 2 includes three legs 21, and each leg 21 has a shaft connecting member 211, an abutting top portion 212, and One foot piece 213. Each shaft connecting member 211 is located in each accommodating groove 13 and has an outer surface 2111 facing the stopper 3. In this embodiment, the outer surface 2111 is a curved surface, while in other embodiments, the outer surface 2111 It can also be a flat surface, an inclined surface, or a surface of other shapes. Each pivot structure 5 can be pivotally connected to each joint 12 (the detailed structure of each pivot structure 5 will be described in detail in the following paragraphs), whereby each leg 21 is pivoted relative to the base body 1 to respectively Change between an unfolded position P1 (as shown in Figure 1) and a folded position P2 (as shown in Figure 5). The legs 21 are arranged on the base body 1 at intervals, that is, they are arranged at intervals in the circumferential direction C with the central axis A as the center. In the present embodiment, the legs 21 intersect with each other at an angle of approximately 120 degrees. When the supporting leg module 2 is in the fully expanded state, the supporting legs 21 are all located at the expanded position P1, and the collapsible foot base 1000 can be placed on a working surface (not shown). When the supporting leg module 2 is In the fully folded state, the feet 21 are all located at the folded position P2, so that the foldable foot 1000 of the present invention can be stored or carried with a small volume.

As shown in FIG. 6, each abutment portion 212 has a first abutment area 2121, a second abutment area 2122, and a protrusion 2123. The first abutment area 2121 is connected to each of the shaft connectors 211 and the second abutment area 2123. Between the regions 2122, the bumps 2123 are correspondingly formed on the second abutting region 2122. In this embodiment, the first abutting area 2121 is approximately a flat surface, the second abutting area 2122 is an outer convex arc surface, and the protrusion 2123 is in the shape of a square plate. However, other embodiments of the present invention may have other shapes The shapes of the first abutting area 2121, the second abutting area 2122, and the bump 2123 are not limited here.

Each leg 213 has a connecting end 2131 and an extending end 2132. The connecting ends 2131 are respectively connected to the shaft connecting members 211. When the leg module 2 is in the fully expanded state, the extending ends 2132 are far away from the supporting module 2000. (Refer to FIG. 1), when the leg module 2 is in the fully folded state, the extension ends 2132 are adjacent to the support module 2000 (refer to FIG. 5).

Referring to FIGS. 7 and 8, the stopper 3 has a central body 31, three first abutting portions 32, three second abutting portions 33, three relieving grooves 34, three blocking blocks 35 and a pressing portion 36. The central body 31 extends along the central axis A, and the first abutting portion 32, the second abutting portion 33, and the stopper 35 respectively extend from the central body 31 toward each shaft connecting member 211 of each leg 21 They are arranged at intervals corresponding to the shaft connectors 211, respectively. The first abutting portions 32 are respectively a bump, and each second abutting portion 33 is an arc block and is located between each first abutting portion 32 and each stopper 35. In this embodiment, each The second abutting portion 33 has an inner concave arc surface, and can interfere with a part of each second abutting area 2122. The relief grooves 34 are formed on the central body 31 at intervals corresponding to the protrusions 2123, and are located on one side of each second abutting portion 33. A depth of each relief groove 34 is designed to be sufficient to accommodate the protrusions 2123, and Each bump 2123 can be operated in each relief groove 34 without interference. The pressing portion 36 is formed at one end of the central body 31 and is essentially an operation button, and is located below the stop 35.

Referring to FIG. 9, the elastic members 4 are respectively sleeved on the three protruding pillars 114 formed on the inner top wall 113 (as shown in FIG. 4), and can be respectively accommodated in the three blind holes 6 ( As shown in Figure 7), the elastic member 4 is pressed between the inner top wall 113 and the stopper 3, and an elastic force is constantly provided to the stopper 3, so that the stopper 3 is on the base 1 The accommodating space 14 tends to be located at a first position V1.

As shown in Figures 9 and 10, when the leg module 2 is in the fully deployed state, the legs 21 are all located at the deployed position P1. Take the relative positional relationship between one leg 21 and the stopper 3 as an example, The stopper 3 is arranged in the accommodating space 14 of the seat body 1 and is located at the first position V1. The stopper 35 abuts the inner bottom wall 112 of the seat body 1, the pressing portion 36 protrudes outside the seat body 1, and the first abutment The abutment area 2121 bears against the first abutment portion 32, and each corresponding protrusion 2123 abuts against the inner side wall 111 of the seat body 1, that is, the abutment portion 212, the first abutment portion 32 and the seat body 1 cooperates to restrict the pivoting of the shaft connecting member 211, so that the supporting leg 21 can be positioned at the unfolding position P1 without rotating at will.

When an external force is applied to the stopper 3 (for example, the pressing portion 36 is pressed by the user), the stopper 3 is moved from the first position V1 to a second position V2 along the central axis A, as shown in FIG. 11, An abutment portion 32 and a second abutment portion 33 both rise along the central axis A and are away from the first abutment area 2121 and the second abutment area 2122.

Next, as shown in FIGS. 12 and 13, one of the legs 21 is pivoted relative to the base 1, and in the process of rotating to the collapsed position P2, the protrusion 2123 moves in the relief groove 34 until it reaches the top 212 The second abutting area 2122 abuts against the second abutting portion 33 and interferes with the second abutting portion 33. When one of the legs 21 is located at the folded position P2, the first abutting area 2121 is already far away from the The first abutment portion 32, and the second abutment area 2122 bears against the second abutment portion 33 so that the stopper 3 is fixed at the second position V2, and the pressing portion 36 does not protrude from the seat body 1 (that is, it is completely accommodated in The accommodating 14 space of the base 1). Since the stopper 3 is already in the second position V2, the user does not need to apply force to the stopper 3, and only needs to continue to rotate the other feet 21 to the folded position P2 to move the collapsible foot 1000 from The fully expanded state is converted to the fully collapsed state.

It should be noted that in this embodiment, the second abutting area 2122 is designed as an outer convex arc surface with unequal curvature, so as to be suitable for local interference with the second abutting portion 33 (as shown in FIG. 12). ), in other embodiments of the present creation, the curvature parameter of the second abutting area 2122 can be adjusted according to requirements to adjust the degree of interference with the second abutting portion 33 (for example, by adjusting the curvature of the second abutting area 2122 to change The contact position and contact area with the second abutting portion 33).

When the supporting leg 21 is pivoted again to the expanded position P1 in the collapsed position P2 (transformed from the position of FIG. 12 to the position of FIG. 9), the second abutting regions 2122 are all separated from the second abutting portion 33. The elastic member 4 returns the stopper 3 to the first position V1, and the first abutting area 2121 abuts the first abutting portion 32 again.

As shown in FIGS. 14 and 15, each pivot structure 5 has a pressure shaft group 51 and a friction module 52. Each pressing shaft group 51 has a first shaft 511 and a second shaft 512. Each first shaft 511 has a first head 5111, a first rod 5112 and a thread groove 5113. Each first head portion 5111 is connected to each first rod body 5112, and each threaded groove 5113 is formed in each first rod body 5112 (that is, a blind hole). Each second shaft 512 has a second head 5121 and a second rod 5122, and each second head 5121 is connected to each second rod 5122.

Each friction module 52 has a first friction member 521 and a second friction member 522, and each first friction member 521 abuts between each first head 5111 and each shaft connecting member 211, and each first rod body 5112 Correspondingly pass through each first friction member 521 and each shaft connection member 211, each second friction member 522 correspondingly abuts between each second head 5121 and each shaft connection member 211, and each second rod body 5122 forms There is an external thread, which passes through each second friction member 522 and is screwed into each thread groove 5113 correspondingly. Thereby, each pressing shaft group 51 is respectively penetrated through each joint 12, each friction module 52 and each shaft connecting member 211 of the base 1, and each shaft connecting member 211 is opposed to each other with each pressing shaft group 51 as the axis. The base body 1 rotates, and by pushing the friction modules 52, the friction modules 52 provide a positive force to the shaft connectors 211.

As each first head portion 5111 and each corresponding second head portion 5121 are closer, each first shaft member 511 and each second shaft member 512 simultaneously exert a stronger clamping force on each friction module 52, The greater the positive force exerted by each friction module 52 on each shaft connection member 211, and each shaft connection member 211 rotates relative to each joint 12 with each pressurizing shaft group 51 as the axis, each shaft connection member 211 and each The greater the frictional force generated by the friction modules 52 with each other, the heavier the hand feeling of rotating the feet 21 can therefore be increased. On the contrary, if you feel that the hand feels heavier, you can selectively unscrew each second rod body 5122 out of the corresponding thread groove 5113, that is, the portion deep into the thread groove 5113 is reduced, and each first shaft member 511 and each second shaft member 512 reduces the clamping force applied to each friction module 52 at the same time. When each shaft connecting member 211 rotates relative to each joint 12 with each pressurizing shaft group 51 as the axis, each shaft connecting member 211 and each friction module The frictional force generated between 52 is reduced, and the hand feeling of turning each foot 21 can be lightened.

The advantage of each first friction member 521 and each second friction member 522 located on two sides of each shaft connection member 211 is that the surface of each shaft connection member 211 can be protected by the first friction member 521 and the second friction member 522. It is directly worn by each pressing shaft group 51 during rotation. Furthermore, the shaft joint 211 of this creation is beautiful and small in size, so it is difficult to assemble the conventional screw washer with the shaft joint 211. On the contrary, the first friction part 521 and the second friction part 521 of this creation are difficult to assemble with the shaft joint 211. The shape, thickness, and size of the member 522 can be changed according to the shape and size of the shaft connecting member 211, which has a higher degree of adjustment than a standard screw washer. In addition, the material of the first friction member 521 and the second friction member 522 is POM, but it is not limited thereto.

The above-mentioned embodiments are only used to exemplify the implementation of this creation and explain the technical features of this creation, and are not used to limit the scope of protection of this creation. Any changes or equal arrangements that can be easily completed by those familiar with this technology belong to the scope of this creation, and the scope of protection of the rights of this creation shall be subject to the scope of the patent application.

1000: collapsible foot

2000: Support module

1: seat body

11: Base

111: inner wall

112: inner bottom wall

113: Inner Top Wall

114: convex column

12: Joint

13: accommodating slot

14: accommodating space

2: Foot module

21: Feet

211: Shaft connection

2111: outer surface

212: reach the top

2121: First Arrival Area

2122: Second Arrival Area

2123: bump

213: Feet

2131: connecting end

2132: Extension

3: stop

31: Central body

32: First Arrival Department

33: Second Arrival

34: give way slot

35: stop

36: Pressing part

4: Elastic parts

5: Pivot structure

51: Compression shaft group

511: The first shaft

5111: first head

5112: The first pole

5113: thread groove

512: second shaft

5121: second head

5122: second pole

52: Friction module

521: First friction part

522: second friction part

6: Blind hole

A: Central axis

C: circumferential direction

P1: Expanded position

P2: Folding position

V1: First position

V2: second position

Figure 1 is a three-dimensional schematic diagram of the creative collapsible foot in a fully expanded state; Figure 2 is an exploded schematic diagram of the creative collapsible foot; Figure 3 is an exploded schematic diagram of the base body of the foldable foot base created; Figure 4 is another exploded schematic diagram of the base body of the foldable foot base created; Figure 5 is a three-dimensional schematic diagram of the creative collapsible foot in the fully collapsed state; Figure 6 is a three-dimensional schematic diagram of the foot of the creative collapsible foot base; Figure 7 is a three-dimensional schematic diagram of the stopper of the creative collapsible foot; Figure 8 is another three-dimensional schematic diagram of the stopper of the creative collapsible foot; Figure 9 is a partial cross-sectional schematic diagram of the creative collapsible foot; Figure 10 is a three-dimensional partial schematic diagram of the creative collapsible foot; Figure 11 is another partial cross-sectional schematic diagram of the creative collapsible foot; Figure 12 is another partial cross-sectional schematic diagram of the creative collapsible foot; Figure 13 is another three-dimensional partial schematic diagram of the creative collapsible foot; Figure 14 is another partial exploded schematic diagram of the creative collapsible foot; and Figure 15 is another partial cross-sectional schematic diagram of the creative collapsible foot.

1: seat body

111: inner wall

112: inner bottom wall

113: Inner Top Wall

114: convex column

14: accommodating space

21: Feet

211: Shaft connection

2111: outer surface

212: reach the top

2121: First Arrival Area

2122: Second Arrival Area

2123: bump

3: stop

32: First Arrival Department

33: Second Arrival

35: stop

36: Pressing part

4: Elastic parts

5: Pivot structure

6: Blind hole

A: Central axis

P1: Expanded position

V1: First position

Claims (14)

A collapsible foot base for carrying a supporting module. The collapsible foot base includes: a base connected with the supporting module and has an accommodating space; a foot module is provided On the seat body, and includes a plurality of feet, the feet are arranged around the seat body at intervals, and can be changed between an unfolded position and a folded position, and each of the feet has a connected Abutting top, a shaft connecting piece and a foot piece; and a stopper, arranged on the base body, and movable between a first position and a second position, and having a central body and a plurality of first abutting parts And a plurality of second abutting parts, one end of the central body is formed with a pressing part, the first abutting part and the second abutting part respectively extend from the central body and are spaced apart from each other corresponding to the legs And an elastic member, abutting against the seat and the stopper, and constantly provides an elastic force to the stopper, so that the stopper tends to the first position; wherein, when the support The feet are all located in the unfolded position, the stopper is located in the first position, the pressing portion extends from the accommodating space and protrudes out of the seat body, the abutting top and the first abutting portion and The seat body cooperates to restrict the pivoting of the axle connecting member. When any of the supporting legs is in the collapsed position, the abutting portion abuts against the second abutting portion, so that the stopper is fixed to In the second position, the pressing portion is accommodated in the accommodating space and does not protrude from the seat body. The collapsible foot seat according to claim 1, wherein when an external force is applied to move the stopper from the first position to the second position, each of the feet can be opposite to each other The seat body is pivoted between the collapsed position and the expanded position. When the supporting legs are pivoted to the expanded position, the abutting top part is separated from the second abutting part, and the stopper returns To the first position. The collapsible foot seat according to claim 2, wherein each of the abutting tops has a first abutting area and a second abutting area, and the first abutting area is connected to the shaft connecting member and Between the second abutting areas, when the supporting feet are in the unfolded position, the first abutting areas can bear against the first abutting portion, and when the supporting feet are in the collapsed position, The first abutment area is far away from the first abutment portion, and the second abutment area abuts against the second abutment portion. The collapsible foot seat according to claim 3, wherein the abutting tops each have a bump, and the bumps are respectively formed on the second abutting area, when any one of the feet In the unfolding position, the corresponding bump abuts against an inner side wall of the seat body. The collapsible foot seat according to claim 4, wherein the central body is further formed with a plurality of relief grooves, and each of the relief grooves is located on one side of each of the second abutting parts, when the supporting foot When pivoting relative to the seat body, the protrusion moves in the relief groove. The collapsible foot seat according to claim 5, wherein the stopper further has at least one stopper formed on the central body and extends toward the support leg, when the stopper is at In the first position, the stopper abuts against an inner bottom wall of the seat body. The collapsible foot stand according to claim 6, wherein the foot module can be changed between a fully expanded state and a fully collapsed state, and when the foot module is in the fully expanded state, the The supporting legs are all located in the unfolded position, and when the supporting leg module is in the fully collapsed state, the supporting legs are all located in the collapsed position. The collapsible foot stand according to claim 7, wherein each of the foot pieces has a connecting end and an extending end, and the connecting ends are respectively connected with the shaft connecting piece, when the foot module is connected to the In the fully expanded state, the extension ends are far away from the support module, and when the leg module is in the fully collapsed state, the extension ends are adjacent to the support module. The collapsible foot seat according to claim 8, wherein the seat body defines a central axis, and the supporting feet are arranged at intervals in a circumferential direction with the central axis as the center. The collapsible foot seat according to claim 9, wherein the seat body further has a plurality of joints and a plurality of accommodating grooves formed on the joints, and the joints are centered on the circumference with the central axis as the center Are arranged at intervals in the direction, the accommodating groove is communicated with the accommodating space, and the shaft connector is located in the accommodating groove. The collapsible foot according to any one of claims 1 to 10, further comprising a plurality of pivot structures, each of the pivot structures has a pressure shaft group and a friction module, the pressure shaft groups are respectively Correspondingly pass through the seat body, the friction module and the shaft connecting piece, the shaft connecting piece rotates relative to the seat body with the corresponding pressing shaft group as the axis, and the pressing shaft group pushes Squeezing the corresponding friction module, so that the friction module provides a positive force to the corresponding shaft joint. The collapsible foot according to claim 11, wherein each of the pressing shaft groups has a first shaft member and a second shaft member, and the first shaft member and the second shaft member face each other And respectively pass through the seat body and the shaft connecting piece to be screwed to each other, so as to clamp the friction module and the shaft connecting piece together. The collapsible foot according to claim 12, wherein the first shaft member has a first head, a first rod and a thread groove, and the first head and the first rod Body connection, the thread groove is formed in the first rod body, the second shaft member has a second head and a second rod body, and the second head is connected to the second rod body , The friction module has a first friction member and a second friction member, the first friction member abuts between the first head and the shaft connecting member, and the first rod body penetrates Through the first friction piece and the shaft connection piece, the second friction piece abuts between the second head and the shaft connection piece, and the second rod body passes through the second The friction member is screwed into the thread groove. The collapsible foot seat according to claim 13, wherein when the first head and correspondingly the second head are closer, the first shaft and the second shaft are aligned at the same time The stronger the clamping force applied by the friction module, the greater the positive force applied by the friction module to the shaft joint. When the shaft joint is opposed to the pressing shaft as its axis When the joint portion rotates, the friction force generated between the shaft connection member and the friction module is greater.

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