One-key operation type supporting leg and supporting foot stool

Abstract

The utility model discloses a one-key operation type supporting leg and a supporting foot stool. The one-key operation type supporting leg comprises a first-section bracket, a second-section bracket and a third-section bracket, in the length extension direction of the supporting leg, the second section of bracket can slide relative to the first section of bracket, and the third section of bracket can slide relative to the second section of bracket; a driving locking mechanism for locking or unlocking the first-section bracket and the second-section bracket is arranged between the first-section bracket and the second-section bracket; a driven locking mechanism for locking or unlocking the second-section bracket and the third-section bracket is arranged between the second-section bracket and the third-section bracket; an interlocking mechanism is connected between the driving locking mechanism and the driven locking mechanism; the driving locking mechanism drives the driven locking mechanism to move through the interlocking mechanism, so that the driven locking mechanism and the driving locking mechanism are in a locking state or an unlocking state at the same time. Synchronous locking or unlocking of the three sections of supports can be achieved only by operating the active locking mechanism, one-key releasing and one-key fixing of the supporting legs are achieved, operation is easy, and the adjusting speed is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to photographic equipment technical field, concretely relates to one button operation formula support leg and support foot stool. BACKGROUND

[0002] In daily life, often need to use support frame and other equipment to support camera and other photographic equipment. Support frame includes a plurality of support legs, each support leg is telescopic structure design, in order to adjust the height of support frame. This telescopic support leg usually has three sections of support rod, first section of support rod and second section of support rod, second section of support rod and third section of support rod are equipped with a set of locking mechanism, each set of locking mechanism has independent locking / unlocking switch, need to open two sets of locking / unlocking switch, can unfold all support rods on the support leg, want to unfold entire support frame, then need to open six locking / unlocking switches, it is extremely inconvenient to use. SUMMARY

[0003] Therefore, the utility model wants to overcome the height adjustment operation of the prior art support leg complicated, the defect of slow adjustment speed, thereby providing one button operation formula support leg and support foot stool.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0005] One button operation formula support leg, including first section of support, second section of support and third section of support, in the length extension direction of support leg, second section of support can slide relative to first section of support, third section of support can slide relative to second section of support, first section of support and second section of support are equipped with the initiative buckle locking mechanism for realizing the locking or unlocking of both, second section of support and third section of support are equipped with driven locking mechanism for realizing the locking or unlocking of both, still include interlocking mechanism, the interlocking mechanism includes the first inclined block connected with initiative buckle locking mechanism, the transmission shaft of transmission connection with driven locking mechanism, the second inclined block of fixed connection in the end of transmission shaft away from driven locking mechanism and with first inclined block inclined surface cooperation, initiative buckle locking mechanism drives second inclined block and transmission shaft along the axial direction of transmission shaft movement through first inclined block, to make driven locking mechanism and initiative buckle locking mechanism simultaneously in locking state or simultaneously in unlocking state.

[0006] Further, the first section support comprises at least two first tubes arranged side by side; the second section support comprises at least two second tubes arranged side by side, and a first sliding joint and a second sliding joint fixedly connected between the at least two second tubes; the third section support comprises at least two third tubes arranged side by side; the at least two first tubes are slidingly connected with the first sliding joint, and the at least two third tubes are slidingly connected with the second sliding joint.

[0007] Further, the first sliding joint is provided with a first mounting cavity, and a first through hole is formed in the side wall of the first sliding joint; the active buckle locking mechanism comprises:

[0008] a tensioning shaft movably penetrating through the first through hole and having one end extending into the first mounting cavity;

[0009] a clamping block fixedly connected to the end of the tensioning shaft extending into the first mounting cavity and located at one side of the first sliding joint; the first inclined block is fixedly connected to the side of the clamping block close to the first sliding joint;

[0010] a buckle rotatably connected to the other end of the tensioning shaft and located at the side of the first sliding joint away from the clamping block; the buckle drives the tensioning shaft and the clamping block to move during rotation, so that the clamping block and the first sliding joint clamp or release the first tube; the first inclined block moves with the clamping block, and the first inclined block drives the second inclined block and the transmission shaft to move upward along the axial direction of the transmission shaft by cooperation between the first inclined surface on the first inclined block and the second inclined surface on the second inclined block, and the transmission shaft drives the driven locking mechanism to move to the locking state.

[0011] Further, when the clamping block is in the locking state, part or all of the clamping block extends into the first mounting cavity; the first mounting cavity is further provided with a first elastic member elastically arranged between the clamping block and the first sliding joint and sleeved on the outer periphery of the tensioning shaft.

[0012] Further, the tensioning shaft is a tensioning screw having external threads at one end, the first adjusting sleeve is threadedly connected to the end of the tensioning screw connected with the clamping block, and the clamping block and the first adjusting sleeve are fixedly arranged in opposite positions.

[0013] Further, a second through hole is arranged on the bottom wall of the first sliding joint, one end of the transmission shaft extends into the first mounting cavity from the second through hole and is fixedly connected with the second inclined block; a pair of limiting guide walls are arranged on the first sliding joint and located on the opposite sides of the second inclined block, the limiting guide walls form a sliding groove in the first sliding joint, and the second inclined block is slidably connected to the sliding groove in the axial direction of the transmission shaft; the interlocking mechanism further comprises a second elastic member elastically arranged between the second inclined block and the top wall of the first sliding joint.

[0014] Further, a plurality of adjustable screw holes are arranged on the clamping block, adjustable screws are threadedly connected in the adjustable screw holes, and the other ends of the adjustable screws are connected with the first inclined block.

[0015] Further, a second mounting cavity is arranged in the second sliding joint, and a third through hole is arranged on the top wall of the second sliding joint; the driven locking mechanism comprises:

[0016] a tight screw rod movably arranged in the third through hole; one end of the tight screw rod is fixedly connected with the transmission shaft, and the other end of the tight screw rod extends into the second mounting cavity;

[0017] a tensioning block arranged in the second mounting cavity and fixedly sleeved on the outer periphery of the tight screw rod;

[0018] a locking wall connected to the inner portion of the second sliding joint and sleeved on the outer periphery of the third pipe body, and the locking wall and the outer periphery of the third pipe body have a gap therebetween;

[0019] a locking ring fixedly connected to the tensioning block and sleeved on the outer periphery of the third pipe body;

[0020] During the movement of the transmission shaft in the axial direction of the transmission shaft, the tight screw rod and the tensioning block are driven to move, so that the locking ring extends into the gap to clamp the third pipe body or extends out of the gap to loosen the third pipe body.

[0021] Further, the mating surfaces of the locking wall and the locking ring are inclined guide surfaces.

[0022] Further, a third elastic member is arranged in the second mounting cavity, sleeved on the outer periphery of the tight screw rod and elastically arranged between the tensioning block and the second sliding joint.

[0023] Further, a second adjusting sleeve is threadedly connected to one end of the tight screw rod connected with the tensioning block, and the tensioning block and the second adjusting sleeve are fixedly arranged in opposite positions.

[0024] Further, one end of the third pipe body is telescopically arranged in the corresponding second pipe body, the other end of the third pipe body is fixedly connected with a third fixed joint, the outer periphery of the one end of the third pipe body telescopically arranged in the second pipe body is sleeved with a slide stop piece, and the slide stop piece is used for preventing the third pipe body from sliding out of the second pipe body.

[0025] A support leg, comprising a support body and a plurality of one-key operation support legs as described above connected to the support body.

[0026] The technical scheme of the utility model has the following advantages:

[0027] 1. The one-key operation support leg, through the interlocking mechanism between the driving buckle locking mechanism and the driven locking mechanism, when the driving buckle locking mechanism performs locking / unlocking operation, the first inclined block, the second inclined block and the transmission shaft can drive the driven locking mechanism to synchronously perform locking / unlocking operation, so that only the driving buckle locking mechanism needs to be operated to realize synchronous locking or unlocking of the three-section support, one-key release and one-key fixing of the support leg, operation is simple, and the extension and retraction adjustment speed of the support leg is effectively improved.

[0028] 2. The one-key operation support leg, the first-section support, the second-section support and the third-section support all have the structural form composed of at least two pipe bodies arranged side by side, have the advantages of high support stability, smaller diameter of the single pipe body, and convenient carrying.

[0029] 3. The one-key operation support leg, the driving buckle locking mechanism composed of the tensioning shaft, the clamping block and the buckle has the advantages of simple structure, easy operation and good locking effect.

[0030] 4. The one-key operation support leg, the structure form that part or all of the clamping block telescopically arranged in the first mounting cavity is conducive to compact design of the driving buckle locking mechanism; the first elastic member arranged on the outer periphery of the tensioning shaft can prevent loosening of the clamping block.

[0031] 5. The one-key operation support leg, the first adjusting nut can adjust the position of the clamping block on the tensioning screw rod, and realize adjustment of the locking force of the driving buckle locking mechanism.

[0032] 6. The one-key operation support leg, the second inclined block is slidably connected to the sliding groove in the first sliding joint along the axial direction of the transmission shaft, which can improve the stability of the second inclined block during movement, and the second elastic member arranged between the second inclined block and the first sliding joint can prevent loosening of the second inclined block; both of them can improve the transmission stability of the interlocking mechanism.

[0033] 7. The one-key operation type supporting leg, the adjustable screw between the clamping block and the first inclined block can adjust the distance between the first inclined block and the clamping block, and further realize the fine adjustment of the locking force of the driven locking mechanism.

[0034] 8. The one-key operation type supporting leg, the driven locking mechanism composed of the clamping screw, the tension block, the locking wall and the locking ring, in the process of the transmission shaft moving along the axial direction, the transmission shaft can drive the clamping screw and the tension block to move, so that the locking ring is inserted into the gap to clamp the third pipe body or is extended out of the gap to loosen the third pipe body, and the one-key operation type supporting leg has the advantages of simple structure, reliable locking effect and the like.

[0035] 9. The one-key operation type supporting leg, the matching surface between the locking wall and the locking ring is an inclined guide surface, which is beneficial to realize the locking and unlocking between the two.

[0036] 10. The one-key operation type supporting leg, the third elastic member between the tension block and the second sliding joint can prevent the tension block from loosening and improve the stability of the driven locking mechanism.

[0037] 11. The one-key operation type supporting leg, the second adjusting screw sleeve can adjust the position of the tension block on the clamping screw, and realize the adjustment of the locking force of the driven locking mechanism.

[0038] 12. The one-key operation type supporting leg, the telescopic structure design of the third pipe body and the second pipe body has the advantages of simple structure and good aesthetic property; and the anti-skid sheet can prevent the third pipe body from sliding out of the second pipe body.

[0039] 13. The one-key operation type supporting leg, the one-key operation type supporting leg can realize the one-key release and the one-key fixing of the supporting leg, and the operation is simple, and the telescopic adjustment speed of the supporting leg is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0041] Figure 1 It is a perspective view of the supporting leg in the stretched state in the embodiment of the utility model;

[0042] Figure 2 It is a front view of the supporting leg in the stretched state in the embodiment of the utility model.

[0043] Figure 3 The sectional view of the first sliding joint position in the embodiment of the utility model Figure 1 ;

[0044] Figure 4 The sectional view of the first sliding joint position in the embodiment of the utility model Figure 2 ;

[0045] Figure 5 The connection relation schematic view of the tensioning shaft, the clamping block, the clasp, the first inclined block, the second inclined block, the transmission shaft and the first sliding joint in the embodiment of the utility model;

[0046] Figure 6 The structure schematic view of the first sliding joint in the embodiment of the utility model;

[0047] Figure 7 The structure schematic view of the interlocking mechanism in the embodiment of the utility model;

[0048] Figure 8 The sectional view of the support leg in the embodiment of the utility model;

[0049] Figure 9 The Figure 8 enlarged view of the second sliding joint position in the embodiment of the utility model;

[0050] Figure 10 The structure schematic view of the support footrest in the embodiment of the utility model, three support legs of the support footrest are in the stretched state.

[0051] Mark explanation:

[0052] 1, the first section support; 11, the first pipe body; 12, the first fixed joint; 13, the second fixed joint;

[0053] 2, the second section support; 21, the second pipe body; 22, the first sliding joint; 221, the first installation cavity; 222, the first through hole; 223, the first guide hole; 224, the limiting guide wall; 225, the sliding groove; 226, the second through hole; 23, the second sliding joint;

[0054] 3, the third section support; 31, the third pipe body; 32, the third fixed joint; 33, the anti-slip piece;

[0055] 4, the active clasp locking mechanism; 41, the tensioning shaft; 42, the clamping block; 421, the adjustable screw hole; 43, the clasp; 431, the eccentric hole; 432, the first abutting surface; 433, the second abutting surface; 44, the first elastic member; 45, the first adjusting screw sleeve; 46, the adjustable screw; 47, the pin shaft; 48, the gasket;

[0056] 51, tightening screw; 52, tensioning block; 53, locking wall; 54, locking ring; 55, third elastic member; 56, second adjusting sleeve;

[0057] 61, first inclined block; 62, transmission shaft; 63, second inclined block; 64, second elastic member;

[0058] 7, support body. DETAILED DESCRIPTION

[0059] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0060] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0061] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0062] As Figure 1The one-key operation support leg shown in FIG. 10 comprises a first section support 1, a second section support 2 and a third section support 3. In the length extension direction of the support leg, the second section support 2 can slide relative to the first section support 1, and the third section support 3 can slide relative to the second section support 2. A main buckle locking mechanism 4 is arranged between the first section support 1 and the second section support 2 for locking or unlocking the two, and a driven locking mechanism is arranged between the second section support 2 and the third section support 3 for locking or unlocking the two. The support leg further comprises a interlocking mechanism coupled between the main buckle locking mechanism and the driven locking mechanism, which comprises a first inclined block connected with the main buckle locking mechanism, a transmission shaft in transmission connection with the driven locking mechanism, and a second inclined block fixedly connected to one end of the transmission shaft away from the driven locking mechanism and in inclined surface cooperation with the first inclined block; the main buckle locking mechanism drives the second inclined block and the transmission shaft to move in the axial direction of the transmission shaft through the first inclined block, so that the driven locking mechanism and the main buckle locking mechanism are simultaneously in the locked state or in the unlocked state.

[0063] The one-key operation support leg, through the interlocking mechanism between the main buckle locking mechanism 4 and the driven locking mechanism, when the main buckle locking mechanism performs the locking / unlocking operation, the driven locking mechanism can be synchronously driven to perform the locking / unlocking operation through the first inclined block 61, the second inclined block 63 and the transmission shaft 62. With such an arrangement, the synchronous locking or unlocking of the three section supports can be realized only by operating the main buckle locking mechanism 4, the one-key release and one-key fixing of the support leg can be realized, the operation is simple, and the extension adjustment speed of the support leg is effectively improved.

[0064] The first section support 1 comprises two first pipe bodies 11 arranged side by side, a first fixed joint 12 and a second fixed joint 13 fixed between the two first pipe bodies 11. The first fixed joint 12 is fixed to one end of the two first pipe bodies 11 close to the support body 7, and the second fixed joint 13 is fixed to the other end of the two first pipe bodies 11 away from the support body 7. Of course, the number of first pipe bodies 11 can also be three or more arranged side by side.

[0065] The second section support 2 comprises two second pipe bodies 21 arranged side by side, a first sliding joint 22 and a second sliding joint 23 fixed between the two second pipe bodies 21. The first sliding joint 22 is fixed to one end of the two second pipe bodies 21 close to the first fixed joint 12, and the second sliding joint 23 is fixed to the other end of the two second pipe bodies 21 away from the first fixed joint 12. Of course, the number of second pipe bodies 21 can also be three or more arranged side by side.

[0066] The third section support 3 comprises two third tube bodies 31 arranged side by side and a third fixed joint 32 fixed between the two third tube bodies 31. One end of the third tube body 31 extends into the corresponding second tube body 21, and the third fixed joint 32 is fixed at the other end of the two third tube bodies 31 extending out of the second tube body 21. The outer wall of the one end of the third tube body 31 extending into the second tube body 21 is fixed with a slide stop piece 33 for preventing the third tube body 31 from sliding out of the second tube body 21. Of course, the number of the third tube bodies 31 can also be three or more arranged side by side.

[0067] In some embodiments, the two first tube bodies 11 arranged side by side are slidingly connected to the first sliding joint 22, and the two third tube bodies 31 arranged side by side are slidingly connected to the second sliding joint 23. The active buckle locking mechanism 4 is arranged on the first sliding joint 22, the driven locking mechanism is arranged on the second sliding joint 23, and the interlocking mechanism is connected between the first sliding joint 22 and the second sliding joint 23. The first section support 1, the second section support 2 and the third section support 3 all have the structure of being composed of at least two tube bodies arranged side by side, which has the advantages of high support stability, smaller diameter of single tube body, easy to carry and the like.

[0068] In some embodiments, the first sliding joint 22 is provided with a first mounting cavity 221, and the first sliding joint 22 is provided with a first through hole 222. One side of the first mounting cavity 221 is open, and the first through hole 222 is arranged on the side wall of the first sliding joint 22 opposite to the open side. The active buckle locking mechanism 4 comprises a tensioning shaft 41, a clamping block 42 and a buckle 43. The tensioning shaft 41 is movably arranged in the first through hole 222 along the axial direction of the first through hole 222, and one end of the tensioning shaft 41 extends into the first mounting cavity 221. The clamping block 42 is arranged on one side of the first sliding joint 22 and is fixedly connected to the end of the tensioning shaft 41 extending into the first mounting cavity 221. The buckle 43 is arranged on the side of the first sliding joint 22 opposite to the clamping block 42 and is rotatably connected to the other end of the tensioning shaft 41 around a pin shaft 47. The buckle 43 is connected through an eccentric hole 431 and the pin shaft 47, and one end of the tensioning shaft 41 is connected to the pin shaft 47. A gasket 48 is further arranged between the buckle 43 and the first sliding joint 22. The buckle 43 can rotate within a range of 90°. The buckle 43 comprises two adjacent and perpendicular first and second abutting surfaces 432 and 433. The minimum distance between the center of the eccentric hole 431 and the first abutting surface 432 is smaller than the minimum distance between the center of the eccentric hole 431 and the second abutting surface 433. When the buckle 43 is rotated to a horizontal position, the first abutting surface 432 of the buckle 43 abuts against the gasket 48, the distance between the pin shaft 48 in the eccentric hole 431 and the gasket 47 is relatively small, the tensioning shaft 41 connected to the pin shaft 48 and the clamping block 42 are in a relaxed state, and the active buckle locking mechanism 4 and the driven locking mechanism are simultaneously in an unlocked state. At this time, part of the buckle 43 extends into the groove outside the first sliding joint 22, and the top wall of the first sliding joint 22 limits the further upward rotation of the buckle 43, so that the buckle 43 cannot continue to rotate upward. When the buckle 43 is rotated downward by 90° from the horizontal state, the second abutting surface 433 of the buckle 43 abuts against the gasket 48, the distance between the pin shaft 48 in the eccentric hole 431 and the gasket 47 is relatively far, the tensioning shaft 41 connected to the pin shaft 48 is pulled by a distance, and the tensioning shaft 41 drives the clamping block 42 to move a distance into the first mounting cavity 221, so that the clamping block 42 and the first sliding joint 22 cooperate to clamp the first pipe body 21, and the first inclined block 61 moves synchronously with the clamping block 42, the first inclined block 61 drives the second inclined block 63 and the transmission shaft 62 to move upward along the axial direction of the transmission shaft 62 through the cooperation of the first inclined surface on the first inclined block 61 and the second inclined surface on the second inclined block 63, the transmission shaft 62 drives the driven locking mechanism to move to a locked state, and the active buckle locking mechanism 4 and the driven locking mechanism are simultaneously locked. The active buckle locking mechanism 4 composed of the tensioning shaft 41, the clamping block 42 and the buckle 43 has the advantages of simple structure, easy operation and good locking effect.

[0069] In some embodiments, when the active buckle locking mechanism 4 is in the locked state, part or all of the clamping block 42 extends into the first mounting cavity 221 of the first sliding joint 22; the first mounting cavity 221 is further provided with a first elastic member 44 which is sleeved on the outer periphery of the tensioning shaft 41 and elastically arranged between the clamping block 42 and the first sliding joint 22; the first elastic member 44 is specifically a compression spring. The structure in which part or all of the clamping block 42 extends into the first mounting cavity 221 is conducive to the compact design of the active buckle locking mechanism 4; the arrangement of the first elastic member 44 on the outer periphery of the tensioning shaft 41 can prevent the clamping block 42 from loosening.

[0070] In some embodiments, the tensioning shaft 41 is a tensioning screw with external threads at one end, the tensioning screw is threadedly connected with a first adjusting sleeve 45 at the end connected with the clamping block 42, and the clamping block 42 is fixedly arranged relative to the first adjusting sleeve 45. The first adjusting sleeve 45 can adjust the position of the clamping block 42 on the tensioning screw, thereby achieving the adjustment of the locking force of the active buckle locking mechanism 4.

[0071] In some embodiments, the first sliding joint 22 is provided with a first guide hole 223 which is in sliding cooperation with a part of the circumferential outer wall of the first pipe body 11, the hole wall of the first guide hole 223 is communicated with the groove wall of the first mounting cavity 221, and the side of the clamping block 42 facing the first guide hole 223 is provided with a clamping arc surface which abuts against another part of the circumferential outer wall of the first pipe body 11 to cooperate with the first sliding joint 22 to clamp the first pipe body 11. In this way, the clamping of the first pipe body 11 can be better achieved, and the clamping part is located inside the first sliding joint 22, which has the advantages of good overall appearance and the clamping part being not easy to be damaged.

[0072] In some embodiments, a second through hole 226 is arranged on the bottom wall of the first sliding joint 22, and one end of the transmission shaft 62 extends into the first mounting cavity 221 from the second through hole 226 and is fixedly connected with the second inclined block 63. The first sliding joint 22 is internally provided with a pair of limiting guide walls 224 located on the opposite sides of the second inclined block 63. The pair of limiting guide walls 224 form a sliding groove 225 in the first sliding joint 22, and the second inclined block 63 is slidably connected to the sliding groove 225 in the axial direction of the transmission shaft 62. The interlocking mechanism further comprises a second elastic member 64 elastically arranged between the second inclined block 63 and the top wall of the first sliding joint 22. The second inclined block 63 is slidably connected to the sliding groove 225 in the first sliding joint 22 in the axial direction of the transmission shaft 62, which can improve the stability of the second inclined block 63 during movement. The second elastic member 64 arranged between the second inclined block 63 and the first sliding joint 22 can prevent the second inclined block 63 from loosening. Both of them can improve the transmission stability of the interlocking mechanism. Specifically, the top of the second inclined block 63 is provided with a plurality of grooves, and the second elastic member 64 has a plurality of portions. Each portion of the second elastic member 64 extends into the groove at the top of the second inclined block 63. The second elastic member 64 is specifically a spiral spring in a compressed state.

[0073] In the present embodiment, the second sliding joint 23 is internally provided with a second mounting cavity, and the third through hole is arranged on the top wall of the second sliding joint 23. The driven locking mechanism comprises a tightening screw 51, a tension block 52, a locking wall 53 and a locking ring 54. The tightening screw 51 is movably arranged in the third through hole, one end of the tightening screw 51 is fixedly connected with the transmission shaft 62, and the other end of the tightening screw 51 extends into the second mounting cavity. The tension block 52 is located in the second mounting cavity and is fixedly sleeved on the outer periphery of the tightening screw 51. The locking wall 53 is integrally connected to the inside of the second sliding joint 23, and a pair of locking walls 53 are respectively sleeved on the outer periphery of a pair of third pipe bodies 31. The locking wall 53 and the outer periphery of the third pipe body 31 have a gap therebetween. The locking ring 54 is fixedly connected to the tension block 52 and is sleeved on the outer periphery of the third pipe body. The driven locking mechanism composed of the tightening screw 51, the tension block 52, the locking wall 53 and the locking ring 54, in the process of the transmission shaft 62 moving in the axial direction thereof, the transmission shaft 62 drives the tightening screw 51 and the tension block 52 to move, so that the locking ring 54 extends into the gap to clamp the third pipe body 31 or extends out of the gap to loosen the third pipe body 31. This driven locking mechanism has the advantages of simple structure, reliable locking effect, etc.

[0074] In some embodiments, the mating surfaces of the locking wall 53 and the locking ring 54 are inclined guide surfaces, which are conducive to the locking and unlocking therebetween.

[0075] In some embodiments, a third elastic member 55 is arranged in the second mounting cavity of the second sliding joint 23, and the third elastic member 55 is arranged in a compressed state. The third elastic member 55 is arranged between the tensioning block 52 and the second sliding joint 23, and the third elastic member 55 is specifically a coil spring. The third elastic member 55 arranged between the tensioning block 52 and the second sliding joint 23 can prevent the tensioning block 52 from loosening, and improve the stability of the driven locking mechanism.

[0076] In some embodiments, the end of the tensioning screw 51 connected with the tensioning block 52 is threadedly connected with a second adjusting sleeve 56, and the tensioning block 52 is arranged in a fixed position relative to the second adjusting sleeve 56. The second adjusting sleeve 56 can adjust the position of the tensioning block 52 on the tensioning screw 51, and achieve coarse adjustment of the locking force of the driven locking mechanism. The clamping block 42 of the driving buckle locking mechanism 4 is provided with a plurality of adjustable screw holes 421, and the adjustable screw holes 421 are threadedly connected with adjustable screws 46. The other end of the adjustable screw 46 is connected with or abuts against the first inclined block 61. During adjustment of the locking force of the driven locking mechanism, in addition to the coarse adjustment of the locking force by the second adjusting sleeve 56, the distance between the first inclined block 61 and the clamping block 42, that is, the distance between the first inclined block 61 and the second inclined block 63, can be adjusted by adjusting the installation depth of the plurality of adjustable screws 46 in the adjustable screw holes 421, so as to achieve fine adjustment of the locking force of the driven locking mechanism. The two can be combined to achieve precise adjustment of the locking force of the driven locking mechanism, and the flexibility and reliability are better.

[0077] As shown in Figure 10 The utility model discloses a support foot stool, which is mainly used for supporting photographic equipment. The support foot stool comprises a support main body 7 and three support legs 100 hingedly connected to the support main body 7, and the support legs 100 are one-key operation type support legs. It should be understood that the number of the support legs 100 can be adaptively selected according to needs, for example, the support legs 100 can be four in number. The support foot stool 100 adopts the one-key operation type support legs, and can realize one-key release and one-key fixation of the support legs 100, which is simple to operate and effectively improves the telescopic adjustment speed of the support legs.

[0078] In conclusion, the one-key operation type support leg and the support foot stool can realize one-key release and one-key fixation of the support legs, have the advantages of simple structure, convenient operation, and good locking reliability, and effectively improve the telescopic adjustment speed of the support legs during photography.

[0079] Obviously, the above embodiments are only examples for clearly illustrating the present application and are not intended to limit the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be enumerated. The changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A one-touch support leg, characterized by, The support leg comprises a first section support (1), a second section support (2) and a third section support (3); the second section support (2) is slidable relative to the first section support (1) in the length extension direction of the support leg, and the third section support (3) is slidable relative to the second section support (2); a main active buckle (43) locking mechanism (4) is arranged between the first section support (1) and the second section support (2) to realize locking or unlocking of the two; a driven locking mechanism is arranged between the second section support (2) and the third section support (3) to realize locking or unlocking of the two; a linkage mechanism is further included, which comprises a first inclined block (61) connected with the main active buckle (43) locking mechanism (4), a transmission shaft (62) connected with the driven locking mechanism, and a second inclined block (63) fixedly connected to one end of the transmission shaft (62) away from the driven locking mechanism and matched with the inclined surface of the first inclined block (61); the main active buckle (43) locking mechanism (4) drives the second inclined block (63) and the transmission shaft (62) to move along the axial direction of the transmission shaft (62) through the first inclined block (61), so that the driven locking mechanism and the main active buckle (43) locking mechanism (4) are simultaneously in the locked state or the unlocked state.

2. The one-key operation support leg according to claim 1, wherein The first section support (1) comprises at least two first pipe bodies (11) arranged side by side; the second section support (2) comprises at least two second pipe bodies (21) arranged side by side, and a first sliding joint (22) and a second sliding joint (23) fixedly connected between the at least two second pipe bodies (21); the third section support (3) comprises at least two third pipe bodies (31) arranged side by side; the at least two first pipe bodies (11) are slidably connected with the first sliding joint (22), and the at least two third pipe bodies (31) are slidably connected with the second sliding joint (23).

3. The one-key operation support leg according to claim 2, wherein The first sliding joint (22) is provided with a first installation cavity (221) therein, and a first through hole (222) is formed in the side wall of the first sliding joint (22); The main active buckle (43) locking mechanism (4) comprises: a tensioning shaft (41) movably arranged in the first through hole (222) and having one end extending into the first installation cavity (221); a clamping block (42) located on one side of the first sliding joint (22) and fixedly connected to the end of the tensioning shaft (41) extending into the first installation cavity (221); and the first inclined block (61) is fixedly connected to the side of the clamping block (42) close to the first sliding joint (22). A buckle (43) is located on the side of the first sliding joint (22) away from the clamping block (42) and is rotatably connected to the other end of the tensioning shaft (41) around a pin shaft (47); the buckle (43) drives the tensioning shaft (41) and the clamping block (42) to move during rotation, so that the clamping block (42) and the first sliding joint (22) cooperate to clamp or loosen the first pipe body (11); the first inclined block (61) moves with the clamping block (42); the first inclined surface on the first inclined block (61) cooperates with the second inclined surface on the second inclined block (63) to drive the second inclined block (63) and the transmission shaft (62) to move upward along the axial direction of the transmission shaft (62); the transmission shaft (62) drives the driven locking mechanism to move to the locked state.

4. The one-key operation support leg according to claim 3, wherein When the active buckle (43) locking mechanism (4) is in the locked state, part or all of the clamping block (42) extends into the first mounting cavity (221); the first mounting cavity (221) further comprises a first elastic member (44) which is elastically arranged between the clamping block (42) and the first sliding joint (22) and is sleeved on the outer periphery of the tensioning shaft (41).

5. The one-key operation support leg according to claim 4, wherein The tensioning shaft (41) is a tensioning screw with external threads at one end; the tensioning screw is threadedly connected to the first adjusting sleeve (45) at the end connected to the clamping block (42); the clamping block (42) is fixedly arranged opposite to the first adjusting sleeve (45).

6. The one-key operation support leg according to claim 3, wherein The bottom wall of the first sliding joint (22) is provided with a second through hole (226); one end of the transmission shaft (62) extends into the first mounting cavity (221) from the second through hole (226) and is fixedly connected to the second inclined block (63); the first sliding joint (22) is internally provided with a pair of limiting guide walls (224) located on the opposite sides of the second inclined block (63); the pair of limiting guide walls (224) form a sliding groove (225) in the first sliding joint (22); the second inclined block (63) is slidably connected to the sliding groove (225) along the axial direction of the transmission shaft (62); the interlocking mechanism further comprises a second elastic member (64) which is elastically arranged between the second inclined block (63) and the top wall of the first sliding joint (22).

7. The one-key operation support leg according to claim 3, wherein The clamping block (42) is provided with a plurality of adjustable screw (46) holes (421); the adjustable screw (46) holes (421) are threadedly connected to adjustable screws (46); the other end of the adjustable screw (46) is connected to the first inclined block (61).

8. The one-key operation support leg according to claim 2, wherein The second sliding joint (23) is internally provided with a second mounting cavity; the top wall of the second sliding joint (23) is provided with a third through hole; the driven locking mechanism comprises: A tight screw (51) movably penetrates the third through hole; one end of the tight screw (51) is fixedly connected to the transmission shaft (62); the other end of the tight screw (51) extends into the second mounting cavity; A tensioning block (52) is arranged in the second mounting cavity and sleeved on the outer periphery of the tensioning screw (51); A locking wall (53) is connected to the inner portion of the second sliding joint (23) and sleeved on the outer periphery of the third pipe body (31), and a gap is formed between the locking wall (53) and the outer periphery of the third pipe body (31); A locking ring (54) is fixedly connected to the tensioning block (52) and sleeved on the outer periphery of the third pipe body (31); The transmission shaft (62) drives the tensioning screw (51) and the tensioning block (52) to move in the axial direction of the transmission shaft (62), so that the locking ring (54) extends into the gap to clamp the third pipe body (31) or extends out of the gap to loosen the third pipe body (31).

9. The one-key operation support leg according to claim 8, wherein The mating surfaces of the locking wall (53) and the locking ring (54) are inclined guide surfaces.

10. The one-key operation support leg according to claim 8, wherein A third elastic member (55) is further arranged in the second mounting cavity, sleeved on the outer periphery of the tensioning screw (51) and elastically arranged between the tensioning block (52) and the second sliding joint (23).

11. The one-key operation support leg according to claim 8, wherein A second adjusting sleeve (56) is threadedly connected to one end of the tensioning screw (51) connected to the tensioning block (52), and the tensioning block (52) is fixedly arranged opposite to the second adjusting sleeve (56).

12. The one-key operation support leg according to claim 2, wherein One end of the third pipe body (31) is telescopically arranged in the corresponding second pipe body (21), and the other end of the third pipe body (31) is fixedly connected to a third fixed joint (32). The outer periphery of the end of the third pipe body (31) extending into the second pipe body (21) is sleeved with a slip stop piece (33) for preventing the third pipe body (31) from sliding out of the second pipe body (21).

13. A support stand, characterized by The one-key operation type support leg comprises a support body (7) and a plurality of support legs connected to the support body (7), and each support leg is the one-key operation type support leg according to any one of claims 1-12.

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