CN221194517U - Novel fence - Google Patents

Abstract

The utility model discloses a novel fence, which is characterized in that two adjacent frames of the fence are connected through a first connecting piece, a supporting shaft which can be rotationally connected with the first connecting piece is arranged on an upper end connecting seat of the frames, the first connecting piece can vertically reciprocate relative to the supporting shaft so as to lock or unlock the upper end connecting seat, the angle between the two adjacent frames cannot be adjusted during locking, meanwhile, the first connecting piece and the supporting shaft are locked through a locking mechanism, when the angle is required to be adjusted, the first connecting piece and the supporting shaft are unlocked through the locking mechanism, then the first connecting piece is forced to ascend relative to the supporting shaft through external force, and the angle between the two adjacent frames can be adjusted after the locking state of the upper end connecting seat is released.

Description

Novel fence

Technical Field

The utility model relates to the field of protective fences, in particular to a novel fence.

Background

In order to adapt to various places, assembled fences are widely used, the assembled fences are assembled by adopting a plurality of frames through connecting pieces, and the angle between two adjacent frames is fastened through the connecting pieces after the adjustment is completed, however, the fastening operation of the fences on the market is very inconvenient at present,

Disclosure of utility model

The utility model mainly aims to provide a novel fence, which aims to solve the problems in the prior art.

In order to achieve the above-mentioned objective, the present utility model provides a novel fence, which comprises a plurality of frames having an upper end connecting seat and a lower end connecting seat, wherein the frames are sequentially connected front and back, and are further provided with a first connecting piece, the upper end connecting seat is fixedly provided with two vertically extending support shafts, two jacks are arranged at intervals of the first connecting piece, the support shafts on the two adjacent frames are respectively rotatably inserted into the two jacks, the first connecting piece can also vertically reciprocate relative to the support shafts to lock or unlock the upper end connecting seat, a locking mechanism is further provided for locking the first connecting piece and the support shaft to limit the first connecting piece from vertically reciprocating, and a second connecting piece is further provided, the lower end connecting seat is provided with a third bump, the second connecting piece is provided with two vertically extending pivot holes at intervals, the adjacent lower end connecting seat is rotatably connected with the second connecting piece through the third bump, a plurality of vertically extending concave positions are arranged at intervals of the circumference wall rings of the third bump, an elastic strip is arranged at the inner wall of the pivot hole, and the elastic strip can be abutted against the first concave position and the second connecting piece to rotate along with the second connecting piece, and the second connecting piece can swing between the concave position and the first supporting shaft and the second supporting shaft.

According to the technical scheme, two adjacent frames of the fence are connected through the first connecting piece, the supporting shaft which can be rotationally connected with the first connecting piece is arranged on the upper end connecting seat of the frames, the first connecting piece can vertically reciprocate relative to the supporting shaft so as to lock or unlock the upper end connecting seat, the angle between the two adjacent frames cannot be adjusted during locking, meanwhile, the first connecting piece and the supporting shaft are locked through the locking mechanism, when the angle is required to be adjusted, the first connecting piece and the supporting shaft are unlocked through the locking mechanism, then the first connecting piece is forced to ascend relative to the supporting shaft through external force, and the angle between the two adjacent frames can be adjusted after the locking state of the upper end connecting seat is released.

Drawings

FIG. 1 is a perspective view of a frame when unfolded;

fig. 2 is a perspective view of the housing when it is retracted;

FIG. 3 is an exploded view of the upper connector with a locking mechanism;

FIG. 4 is a first angular cross-sectional view of the locking mechanism assembled with the support shaft;

FIG. 5 is a second angular cross-sectional view of the locking mechanism assembled with the support shaft;

FIG. 6 is a perspective view of the upper end connector, the first connector and the support shaft;

FIG. 7 is a perspective view of the lower end connector and the second connector;

FIG. 8 is an exploded view of the first joint;

FIG. 9 is an exploded view of a second joint;

FIG. 10 is a schematic view of the present utility model deployed as a hexagonal pen;

FIG. 11 is a schematic view of the present utility model when deployed as a sheet form enclosure;

Fig. 12 is a schematic view of the folded device of fig. 11.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the embodiment of the present utility model, directional indications (such as up, down, left, right, front, back, top, bottom, inner, outer, vertical, lateral, longitudinal, counterclockwise, clockwise, circumferential, radial, axial … …) are referred to, and the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first" or "second" etc. in the embodiments of the present utility model, the description of "first" or "second" etc. is only for descriptive purposes, and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a novel fence.

In the embodiment of the utility model, as shown in fig. 1 to 12, the novel fence comprises a plurality of frames 300 with an upper end connecting seat 100 and a lower end connecting seat 200, the frames 300 are sequentially connected front and back, a first connecting piece 1 is further arranged, the upper end connecting seat 100 is fixedly provided with a vertically extending supporting shaft, the first connecting piece 1 is provided with two jacks 11 at intervals, the supporting shafts on the two adjacent frames are respectively rotatably inserted into the two jacks 11, the first connecting piece 1 can also vertically reciprocate relative to the supporting shaft to lock or unlock the upper end connecting seat 100, and a locking mechanism is further arranged for locking the first connecting piece 1 and the supporting shaft to limit the first connecting piece to vertically reciprocate.

According to the technical scheme, two adjacent frames of the fence are connected through the first connecting piece, the supporting shaft which can be rotationally connected with the first connecting piece is arranged on the upper end connecting seat of the frames, the first connecting piece can vertically reciprocate relative to the supporting shaft so as to lock or unlock the upper end connecting seat, the angle between the two adjacent frames cannot be adjusted during locking, meanwhile, the first connecting piece and the supporting shaft are locked through the locking mechanism, when the angle is required to be adjusted, the first connecting piece and the supporting shaft are unlocked through the locking mechanism, then the first connecting piece is forced to ascend relative to the supporting shaft through external force, and the angle between the two adjacent frames can be adjusted after the locking state of the upper end connecting seat is released.

Specifically, a plurality of first latches 102 are annularly arranged on the outer wall of the lower end of the supporting shaft at intervals, second latches 12 are arranged on the inner wall of the jack 11 at positions corresponding to between two adjacent first latches 102, and the first connecting piece can drive the second latches 12 to extend downwards between the adjacent first latches 102 to lock the upper connecting seat or move upwards away from the first latches 102 to unlock the upper connecting seat when in vertical reciprocating motion.

Specifically, the two support shafts respectively inserted into the jack in a rotating manner are a first support shaft 101A and a second support shaft 101B, in this embodiment, as shown in fig. 3 to 5, the first support shaft 101A is provided with the locking mechanism, and a circumferential wall of the first support shaft 101A is provided with an annular groove 103 coaxial with the first support shaft 101A;

The locking mechanism includes an annular member 21, a cover 22, a spherical member 23, and a top spring 24;

The annular member 21 is movably sleeved on the first supporting shaft 101A, a through hole 211 matched with the spherical member 23 is formed in the annular member 21, and a supporting portion 13 for propping against the bottom wall of the annular member 21 is arranged on the inner wall of the insertion hole 11 at a position corresponding to the upper part of the second latch 12;

The spherical member 23 is accommodated in the through hole 211 and is partially located in the annular groove 103;

The cover 22 is movably arranged on the first supporting shaft 101A and can shield the through hole 211, a spherical groove 221 is formed in the inner wall of the cover 22, the cover 22 can move relative to the annular member 21 between positions enabling the spherical groove 221 to be communicated with the through hole 211 and staggered, and when the spherical groove 221 is staggered with the through hole 211, the spherical member 23 is partially positioned in the annular groove 103 so as to lock the annular member 21 with the first supporting shaft 101A, and therefore the first connecting piece 1 and the upper connecting seat 100 are locked; when the spherical groove 221 is communicated with the through hole 211, the spherical member 23 rolls towards the direction of the spherical groove 221 to enable the spherical member 23 to partially withdraw from the annular groove 103 and partially enter the spherical groove 221, so that the annular member 21 and the first supporting shaft 101A are unlocked, and the first connector 1 and the upper end connecting seat 100 are unlocked;

The top spring 24 is vertically disposed inside the cover 22, the upper end of the top spring 24 abuts against the inner top wall of the cover 22, the lower end of the top spring 24 abuts against the top wall of the annular member 21, and the top spring 24 is used for applying an elastic force to the cover 22, which moves in a direction offset from the spherical groove 221 and the through hole 211.

The cover 22 can be forced to descend by an external force to communicate the spherical groove 221 with the through hole 211, wherein the top spring 24 is compressed, after the spherical groove 221 is communicated with the through hole 211, the spherical member rolls to partially enter the spherical groove 221 to unlock the annular member 21 and the first supporting shaft 101A, thereby unlocking the first connector 1 and the first upper connecting seat 100, at this time, the first connector 1 can be forced to ascend relative to the upper connecting seat 100 by the external force, the second latch 12 is far away from the first latch 102, thereby enabling the first supporting shaft 101A to rotate relative to the first connector 1, so as to adjust the angle of the frame 300, after the angle adjustment of the frame 300 is completed, the first connector 1 is pressed down by the external force to enable the second latch 12 to extend between two adjacent first latches 102, thereby locking the first connector 1 and the first upper connecting seat 100, and then the external force applied to the cover 22 is released, so that the top spring 24 is released from compressing to force the cover 22 to ascend relative to the annular member 21, during ascent, the spherical groove 221 forces the spherical member to roll towards the annular groove 103 until the spherical member 103 is staggered with the spherical groove 103 and the spherical member 101A partially enters the annular member 211.

Specifically, the through hole 211 is inclined downward toward the spherical groove 221 at a position corresponding to the contact with the bottom of the spherical member.

Specifically, the top wall in the cover 22 is provided with a ring body 222 extending downward, the ring body 222 may enclose the upper end of the first supporting shaft 101A, and the upper end of the top spring 24 is sleeved on the ring body 222.

Specifically, the outer wall of the first support shaft 101A is provided with a limiting portion 104, the ring body 222 is provided with a vertically extending limiting groove 223, and the limiting portion 104 is located in the limiting groove 223 to limit the cover-shaped member to rotate relative to the first support shaft 101A.

Specifically, the support shaft is fastened to the upper connector 100 by screws. The rod portion of the screw is sequentially locked with the upper end connection seat 100 after passing through the top and bottom of the support shaft, thereby locking the support shaft on the upper end connection seat 100.

Specifically, the outer wall of the annular member 21 is provided with a guide groove 212 extending vertically, the cover 22 is provided with a hook 224 extending into the guide groove 212 at a position corresponding to the guide groove 212, and the cover 22 is movable between a position where the hook 224 abuts against the top wall of the guide groove 212 and a position where the hook 224 is away from the top wall of the guide groove 212.

Specifically, the lower end of the first support shaft 101A is provided with a non-circular first insertion portion 105, the upper end connection seat 100 is provided with a first slot 1061 adapted to the first insertion portion 105, and the first insertion portion 105 is inserted into the first slot 1061 to lock the first support shaft 101A by a screw.

Specifically, the upper end connection base 100 is provided with a first bump 106 that can be inserted into the jack 11, the top wall of the first bump 106 is provided with the first slot 1061, and the peripheral wall of the first bump 106 is provided with the first latch 102.

Specifically, in this embodiment, as shown in fig. 6, a non-circular second plugging portion 107 is disposed at the lower end of the second supporting shaft 101B, a second bump 108 is disposed on the upper end connecting seat 100 connected to the second supporting shaft 101B, a second slot 1081 is disposed on the top wall of the second bump 108 and is adapted to the second plugging portion 107, the first latch 102 is disposed on the peripheral wall of the second bump 108, after the second bump 108 is inserted into the second slot 11 from bottom to top, the second supporting shaft 101B is inserted into the second slot 1081 from top to bottom and the second plugging portion 107 is inserted into the second slot 11, an extending portion 109 extending outwards is further disposed at the upper end of the second supporting shaft 101B, a stopper 111 is disposed at a position below the extending portion 109 corresponding to the inner wall of the second slot 11, and the first connector 1 can move between positions where the stopper 111 and the first connector 1 are abutted against each other.

It will be appreciated that the support portion 13 has a relief hole through which the first or second plug portion passes from top to bottom.

Specifically, the peripheral wall of the second supporting shaft 101B is provided with a convex ring 01 coaxial with the second supporting shaft 101B, and the convex ring 01 can contact with the supporting portion 13 to prevent the second inserting portion from being inserted into the second inserting slot when the frame rotates.

Specifically, the frame 300 includes two upper end connection bases 100, two lower end connection bases 200, and two first tubular members 400, the upper end connection bases 100 and the lower end connection bases 200 are respectively fixed at two ends of the first tubular members 400, a first joint 500 is connected between the two upper end connection bases 100, and the first joint 500 can bend between positions where the two upper end connection bases 100 abut against each other to fold the upper portion of the frame 300 and separate from each other to unfold the upper portion of the frame 300; a second joint 600 is connected between the two lower end connection bases 200, and the second joint 600 is bendable between a position in which the two lower end connection bases 200 are abutted against each other to fold the lower portion of the frame 300 and a position in which the lower portion of the frame 300 is folded away from each other.

Specifically, the first joint 500 includes a joint seat 501 and two second tubular members 502, one ends of the two second tubular members 502 are respectively rotatably hinged to the two upper end connection seats 100, the other ends are respectively rotatably connected to the joint seat 501, the joint seat 501 is movably provided with a push block 503 and two swinging members 504, the push block 503 can vertically reciprocate relative to the joint seat 501, the lower ends of the two swinging members 504 are respectively rotatably connected to the push block 503, the upper ends of the two swinging members 504 are respectively movably connected to the joint seat 501, when the push block 503 vertically reciprocate, the upper ends of the swinging members 504 can be driven to swing between positions of vertically propping against the end of the second tubular member 502 and away from the end of the second tubular member 502, so as to lock or unlock the second tubular member 502 with the joint seat 501, and tension springs 505 are further provided, and two ends of each tension spring 505 are respectively fixedly connected to the lower ends of the two swinging members 504, so as to apply a tensile force to vertically propping against the upper ends of the swinging members 504 and the second tubular member 502.

Specifically, the outer wall of the push block 503 is provided with a vertically extending guide bar 506, the joint seat 501 is provided with a bar groove 507 corresponding to the guide bar 506, and the push block 503 performs vertical reciprocating motion through the guide cooperation of the guide bar 506 and the bar groove 507.

Specifically, the second joint 600 includes two third tubular members 601 and a hinge seat formed by hinging two hinges 602, one end of each of the two third tubular members 601 is hinged to the two lower end connecting seats 200, the other end of each of the two third tubular members is fixedly connected to the two hinges 602, the two third tubular members 601 can swing between positions aligned and vertically adjacent to each other through the hinge seat, one of the third tubular members 601 is movably provided with a moving member 603, the moving member 603 can move between positions partially inserted into the other third tubular member 601 and withdrawn from the other third tubular member 601 relative to the third tubular member 601, and a spring 604 is further provided for applying an elastic force to the moving member 603 to move toward the other third tubular member 601. When the ends of the two third tubular members 601 are aligned, the elastic force of the spring 604 forces the mover 603 to move to partially insert the end of the other third tubular member 601, thereby locking the two third tubular members 601 from swinging by the capstan.

Specifically, the moving member 603 extends outward to form a driving portion 605, and the driving portion 605 is pushed to partially withdraw the end portions of the other third tubular members 601, so that the locking of the two third tubular members 601 is released.

Specifically, the top wall of the driving part 605 is provided with a plurality of anti-slip strips 606.

Specifically, a second connecting piece 3 is further provided, the lower end connecting seat 200 is provided with a third bump 201, two vertically extending pivot holes 31 are formed in the second connecting piece 3 at intervals, two adjacent lower end connecting seats 200 are rotatably connected with the second connecting piece 3 in a mode that the third bump 201 is inserted into the pivot holes 31, a plurality of vertically extending concave positions 202 are formed in the peripheral wall of the third bump 201 at annular intervals, an elastic strip 32 is arranged on the inner wall of the pivot hole 31, and the elastic strip 32 can swing between the clamped concave positions 202 and positions, which are elastically propped against the peripheral wall of the third bump 201, along with the rotation of the second connecting piece 3.

It can be understood that, since the present utility model is formed by connecting a plurality of frames in turn, it is possible to select whether to connect the frames end to end according to the needs of the user, and when the frames are not connected end to end, as shown in fig. 11, the fence is a sheet fence. When the end-to-end connection is selected, the fence can be a hexagonal fence as shown in fig. 10. Of course, triangular fences, quadrilateral fences, octagonal fences, and the like are also possible.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (14)

1. The utility model provides a novel rail, includes a plurality of framework (300) that have upper end connecting seat (100) and lower extreme connecting seat (200), and a plurality of framework (300) connect gradually, its characterized in that around: the novel high-speed swing type connecting seat is characterized by further comprising a first connecting piece (1), wherein the upper connecting seat (100) is fixedly provided with a supporting shaft which vertically extends, two jacks (11) are arranged at intervals of the first connecting piece (1), the supporting shafts on the two adjacent frames are respectively rotatably inserted into the two jacks (11), the first connecting piece (1) can vertically reciprocate relative to the supporting shaft to lock or unlock the upper connecting seat (100), a locking mechanism is further arranged for locking the first connecting piece (1) and the supporting shaft to limit the first connecting piece to vertically reciprocate, a second connecting piece (3) is further arranged, the lower connecting seat (200) is provided with a third bump (201), the second connecting piece (3) is provided with two vertically extending pivot holes (31) at intervals, the two adjacent lower connecting seats (200) are rotatably connected with the second connecting piece (3) in a mode that the third bump (201) is inserted into the pivot holes (31), a plurality of vertically extending concave positions (202) are arranged at intervals on the periphery of the third bump (201), and the inner wall of the third bump (1) and the second connecting piece (201) can be elastically pivoted with the second connecting piece (101) in a pivot mode that the second connecting piece (32) can be pivoted with the pivot joint position (101) between the two elastic connecting pieces (101).

2. The novel pen of claim 1, wherein: the annular interval of back shaft lower extreme outer wall is equipped with a plurality of first latches (102), and the position between jack (11) inner wall corresponds adjacent two first latches (102) is equipped with second latch (12), and first connecting piece is do can drive second latch (12) down stretch into between adjacent first latch (102) in order to lock upper end connecting seat or go upward to keep away from first latch (102) in order to release the locking when vertical reciprocating motion.

3. The novel pen of claim 2, wherein: the first supporting shaft (101A) is provided with the locking mechanism, and the peripheral wall of the first supporting shaft (101A) is provided with an annular groove (103) coaxial with the first supporting shaft (101A);

the locking mechanism comprises an annular member (21), a cover body (22), a spherical member (23) and a top spring (24);

The annular member (21) is movably sleeved on the first supporting shaft (101A), a through hole (211) matched with the spherical member (23) is formed in the annular member (21), and a supporting part (13) for propping against the bottom wall of the annular member (21) is arranged at a position, corresponding to the upper part of the second latch (12), of the inner wall of the jack (11);

The spherical member (23) is accommodated in the through hole (211) and has a part located in the annular groove (103);

The cover body (22) is movably arranged on the first supporting shaft (101A) and can shield the through hole (211), a spherical groove (221) is formed in the inner wall of the cover body (22), the cover body (22) can move relative to the annular component (21) between positions enabling the spherical groove (221) to be communicated with the through hole (211) and staggered, and when the spherical groove (221) is staggered with the through hole (211), the spherical component (23) is partially positioned in the annular groove (103) to enable the annular component (21) to be locked with the first supporting shaft (101A) so as to lock the first connecting piece (1) and the upper connecting seat (100); when the spherical groove (221) is communicated with the through hole (211), the spherical member (23) rolls towards the direction of the spherical groove (221) to enable the spherical member (23) to partially exit the annular groove (103) and partially enter the spherical groove (221), so that the annular member (21) is unlocked with the first supporting shaft (101A) to unlock the first connecting piece (1) and the upper connecting seat (100);

The top spring (24) is vertically arranged in the cover body (22), the upper end of the top spring (24) is propped against the inner top wall of the cover body (22), the lower end of the top spring (24) is elastically propped against the top wall of the annular component (21), and the top spring (24) is used for applying elastic force to the cover body (22) which moves towards the spherical groove (221) and the through hole (211) in a staggered direction.

4. A novel pen as claimed in claim 3 wherein: the through hole (211) is inclined downwards towards the spherical groove (221) corresponding to the contact position with the bottom of the spherical member.

5. A novel pen as claimed in claim 3 wherein: the top wall in lid (22) is equipped with downwardly extending's circle body (222), and circle body (222) can be with the upper end of back shaft one (101A) encirclement, the upper end cover of top spring (24) is located circle body (222).

6. The novel pen of claim 5, wherein: the outer wall of the first supporting shaft (101A) is provided with a limiting part (104), the ring body (222) is provided with a vertically extending limiting groove (223), and the limiting part (104) is positioned in the limiting groove (223) to limit the cover-shaped member to rotate relative to the first supporting shaft (101A).

7. The novel pen of claim 2, wherein: the support shaft is locked on the upper end connecting seat (100) through screws.

8. A novel pen as claimed in claim 3 wherein: the outer wall of the annular member (21) is provided with a guide groove (212) extending vertically, a hook part (224) extending into the guide groove (212) is arranged at a position of the cover body (22) corresponding to the guide groove (212), and the cover body (22) can move between a position enabling the hook part (224) to prop against the top wall of the guide groove (212) and a position enabling the hook part (224) to be far away from the top wall of the guide groove (212).

9. The novel pen of claim 7, wherein: the lower end of the first support shaft (101A) is provided with a non-circular first inserting part (105), the upper end connecting seat (100) is provided with a first slot (1061) matched with the first inserting part (105), and the first inserting part (105) is inserted into the first slot (1061) to lock the first support shaft (101A) through the screw.

10. The novel pen of claim 9, wherein: the upper end connecting seat (100) is provided with a first lug (106) which can be inserted into the jack (11), the top wall of the first lug (106) is provided with the first slot (1061), and the peripheral wall of the first lug (106) is provided with the first latch (102).

11. A novel pen as claimed in claim 3 wherein: the lower extreme of back shaft two (101B) is equipped with non-circular second grafting portion (107), and upper end connecting seat (100) that are connected with back shaft two (101B) are equipped with and jack (11) looks adaptation second lug (108), and second slot (1081) that is fit for with second grafting portion (107) are seted up to second lug (108) roof, and the perisporium of second lug (108) is equipped with first latch (102), and after second lug (108) inserted jack (11) from bottom to top, back shaft two (101B) top-down inserts jack (11) and makes second grafting portion (107) insert in second slot (1081), and the upper end of back shaft two (101B) still is equipped with extension (109) of outside extension, and the position that jack (11) inner wall corresponds extension (109) below is equipped with stopper (111), and first connecting piece (1) can be in the position that makes stopper (111) and first connecting piece (1) offset and offset between the offset.

12. The novel pen of claim 1, wherein: the frame body (300) comprises two upper end connecting seats (100), two lower end connecting seats (200) and two first tubular members (400), wherein the upper end connecting seats (100) and the lower end connecting seats (200) are respectively fixed at two ends of the first tubular members (400), a first joint (500) is connected between the two upper end connecting seats (100), and the first joint (500) can bend between positions for enabling the two upper end connecting seats (100) to prop against each other to fold the upper part of the frame body (300) and separate from each other to unfold the upper part of the frame body (300); a second joint (600) is connected between the two lower end connecting seats (200), and the second joint (600) can be folded between a position where the two lower end connecting seats (200) prop against each other to fold the lower part of the frame body (300) and a position where the lower part of the frame body (300) is unfolded away from each other.

13. The novel pen of claim 12, wherein: the first joint (500) comprises a joint seat (501) and two second tubular members (502), one ends of the two second tubular members (502) are respectively hinged with the two upper end connecting seats (100) in a rotating mode, the other ends of the two second tubular members (502) are respectively connected with the joint seat (501) in a rotating mode, the joint seat (501) is movably provided with a push block (503) and two swinging pieces (504), the push block (503) can vertically reciprocate relative to the joint seat (501), the lower ends of the two swinging pieces (504) are respectively connected with the push block (503) in a rotating mode, the upper ends of the two swinging pieces (504) are respectively connected with the joint seat (501) in a movable mode, when the push block (503) vertically reciprocates, the upper ends of the swinging pieces (504) can be driven to swing between positions of the end portions of the second tubular members (502) which are vertically abutted against the end portions of the second tubular members (502) and the end portions of the second tubular members (502) which are far away from the second tubular members, the second tubular members (502) are locked or unlocked, and tension springs (505) are further arranged at the two ends of each tension springs (505) are respectively connected with the lower ends of the two swinging pieces (504) in a rotating mode, and the lower ends of the two swinging pieces (504) are used for applying tension to the upper pulling force to the two swinging pieces (502).

14. The novel pen of claim 12, wherein: the second joint (600) comprises two third tubular members (601) and a hinge seat formed by hinging two hinging pieces (602), one end of each of the two third tubular members (601) is hinged with the corresponding lower end connecting seat (200), the other end of each of the two third tubular members is fixedly connected with the corresponding hinging piece (602), the two third tubular members (601) can swing between positions with aligned end parts and vertically adjacent positions through the hinge seat, a moving piece (603) is movably arranged on one of the third tubular members (601), the moving piece (603) can move between the positions of being locally inserted into the end parts of the other third tubular members (601) and being withdrawn, and a spring (604) is additionally arranged for applying elastic force for the moving piece (603) to move towards the direction of the other third tubular members (601).