Supporting foot stool with sliding sleeve and capable of being completely bounced off

Abstract

The utility model discloses a supporting foot stand with a sliding sleeve and capable of being completely bounced off, compared with the prior art, a main rod is further sleeved with the sliding sleeve, a containing space is formed between the sliding sleeve and the main rod, the main rod is sleeved with a first elastic piece, and the first elastic piece is located in the containing space; one end of the sliding sleeve is rotatably connected with the connecting rod, and the other end of the connecting rod is rotatably connected with the supporting leg; when the free end of the supporting leg is matched with the locking assembly, the first elastic piece elastically deforms and generates restoring force. When the locking assembly is unlimited, the restoring force of the first elastic piece enables the sliding sleeve to slide along the main rod, the sliding sleeve drives the connecting rod to rotate, and the connecting rod opens the free end of the supporting leg; the problem that in the prior art, after a locking assembly is removed, supporting legs are only in a slightly-unfolded state, and manual rotation is still needed when the supporting legs are completely unfolded is solved. According to the scheme, after the locking assembly is removed, the whole tripod can be completely bounced off, and use is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to support equipment field, specifically related to a can completely open support foot stand of sliding sleeve. BACKGROUND

[0002] Support device is often used for supporting projector, mobile phone, camera and other equipment, common support structure is three -legged frame, in order to realize the storage convenience, three -legged frame is often designed as the structure that can be folded and unfolded, for example, prior application with patent no. CN201921123317.9 discloses a support foot stand, when not using, support foot can be folded in main rod, convenient to carry, when needing to use, press spring -loaded coupling mechanism, support foot is slightly unfolded from the position of main rod adhesion, but this unfolding is only support foot changes into the unfolded state, and the unfolding range is very limited, still need to rotate support foot manually, can completely unfold support foot.

[0003] Therefore, it can be further optimized to solve the problem of manually rotating the support foot to completely unfold. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of support foot stands of sliding sleeve, when being stimulated by external force, simultaneously unlock multiple support feet, and multiple support feet are completely unfolded, without manually rotating support foot, it is more fast and convenient to unfold.

[0005] To achieve the above object, the utility model provides a kind of support foot stand of sliding sleeve, including

[0006] Main rod is provided with connecting seat on main rod

[0007] Support foot that can be unfolded or folded;The support foot one end is rotatably connected with the connecting seat, the other end is free end;When the free end of the support foot is close to the main rod, the support foot is folded, when the free end of the support foot is away from the main rod, the support foot is unfolded;

[0008] Locking assembly;The locking assembly is used to adapt with the free end of the support foot when the support foot is folded, limit the movement of the support foot relative to the main rod, and the locking assembly is released after triggering;

[0009] The main rod is also sleeved with sliding sleeve, and the sliding sleeve and the main rod form accommodating space, the main rod is sleeved with first elastic piece, and first elastic piece is located in the accommodating space;

[0010] One end of the sliding sleeve is rotatably connected with connecting rod, and the other end of the connecting rod is rotatably connected with the support foot;

[0011] When the free end of the support leg is matched with the locking assembly, the first elastic member is elastically deformed and generates a restoring force; when the locking assembly is released, the restoring force of the first elastic member causes the sliding sleeve to slide along the main rod, and the sliding sleeve drives the connecting rod to rotate, and the connecting rod spreads the free end of the support leg.

[0012] In a specific implementation, the main rod is provided with a limiting block, and when the free end of the support leg is matched with the locking assembly, one end of the first elastic member abuts against the limiting block, and the other end abuts against the end of the sliding sleeve away from the limiting block.

[0013] In a specific implementation, the first elastic member is a spring; the accommodating space further includes a movable ring sleeved on the main rod, and when the free end of the support leg is matched with the locking assembly, one end of the spring abuts against the movable ring, and the movable ring abuts against the limiting block.

[0014] In a specific implementation, a reinforcing rib is further included; one end of the reinforcing rib is rotatably connected with the support leg, and the other end is rotatably connected with the main rod / locking assembly.

[0015] In a specific implementation, the connecting rod is connected with the support leg between the connection between the reinforcing rib and the support leg and the connection between the support leg and the connecting seat.

[0016] In a specific implementation, one end of the sliding sleeve close to the locking assembly is a bottom end, and the other end is a top end; the connecting rod is rotatably connected with the top end of the sliding sleeve, and the other end is rotatably connected with the support leg.

[0017] In a specific implementation, the reinforcing rib is arranged in correspondence with the support leg.

[0018] In a specific implementation, the locking assembly includes a trigger button and a clamping structure, and a top block on the trigger button; when the support leg is folded, the clamping structure is matched with the support leg to limit the movement of the support leg relative to the main rod.

[0019] The trigger button is stimulated, the top block on the trigger button moves, and the top block presses the support leg; so that the support leg is out of the matching limitation of the clamping structure, and the support leg is in an unfolded / expandable state.

[0020] In a specific implementation, the clamping structure includes a first protrusion, and the support leg is provided with a second protrusion; and the second protrusion is connected with the support leg through a second elastic member; when the clamping structure is matched with the support leg, the first protrusion and the second protrusion abut against each other.

[0021] When the top block presses the supporting leg, the top block presses the second protrusion, so that the second protrusion is retracted into the supporting leg, and the abutment between the second protrusion and the first protrusion is released; and the supporting leg is in an unfolded / unfoldable state.

[0022] In specific solutions, the trigger button is connected with the top block through a lever with a fulcrum, and the trigger button and the top block are arranged at two ends of the fulcrum of the lever respectively, so that the movement directions of the trigger button and the top block are opposite.

[0023] In specific solutions, the lever with the fulcrum is in a "V" shape, and the trigger button and the top block are arranged at two ends of the "V" shape respectively; and the fulcrum is arranged at the middle of the "V" shape.

[0024] In specific solutions, the top block is rotatably connected with the lever.

[0025] In specific solutions, the locking structure further comprises a supporting plate, one end of the supporting plate is connected with the main rod, the other end of the supporting plate is provided with a connecting column, a third elastic member is sleeved on the connecting column, and the other end of the third elastic member is in abutment with the trigger button.

[0026] In specific solutions, the trigger button is provided with a groove, and the other end of the third elastic member is inserted into the groove and in abutment with the bottom or the side wall of the groove.

[0027] In specific solutions, the clamping structure further comprises a limiting cover, the first protrusion is arranged on the limiting cover, the limiting cover is used for surrounding the supporting plate to form a movable space, one end of the trigger button is inserted into the movable space, and the trigger button moves in the movable space after being stimulated.

[0028] In specific solutions, the locking structure further comprises a fixing seat, the supporting plate is connected with the rod through the fixing seat; and the fixing seat is provided with a connecting groove with a reinforcing rib, and the supporting plate is used for pressing the connecting groove with the reinforcing rib.

[0029] In specific solutions, one end of the trigger button away from the top block is provided with an extrusion block, the clamping structure is released from the limitation on the supporting leg after the trigger button is pressed; and the extrusion block moves along with the trigger button to extrude the supporting leg, so that the supporting leg moves in the unfolded direction.

[0030] The extrusion block protrudes from the side surface of the trigger button and has a slope structure; and the slope is used for guiding the supporting leg to move along the slope when the extrusion block moves.

[0031] In specific solutions, the top of one end of the trigger button without the elastic member is provided with a pressing cap.

[0032] The advantages of this utility model are:

[0033] Compared with the prior art, this utility model also has a sliding sleeve fitted on the main rod, forming an accommodating space between the sliding sleeve and the main rod. A first elastic element is fitted on the main rod and is located within the accommodating space. One end of the sliding sleeve is rotatably connected to the connecting rod, and the other end of the connecting rod is rotatably connected to the support leg. When the free end of the support leg is fitted with the locking assembly, the first elastic element undergoes elastic deformation and generates a restoring force. When the locking assembly is released, the restoring force of the first elastic element causes the sliding sleeve to slide along the main rod, and the sliding sleeve drives the connecting rod to rotate, thus opening the free end of the support leg. This solves the problem in the prior art where, after the locking assembly is released, the support leg is only slightly extended, and full extension still requires manual rotation. With this utility model, after the locking assembly is released, the entire tripod can fully spring open, making it more convenient to use. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0035] Figure 1 This is a fully unfolded structural diagram of the support frame of this utility model.

[0036] Figure 2 This is a structural diagram of the fully retracted support frame of this utility model.

[0037] Figure 3 This is a structural diagram showing the position of the sliding sleeve in the fully retracted state of the support legs of this utility model.

[0038] Figure 4 This is a structural diagram showing the position of the first elastic element in the fully retracted state of the support legs of this utility model.

[0039] Figure 5 This is a structural diagram showing the position of the first elastic element in the fully extended state of the support leg of this utility model.

[0040] Figure 6 This is a structural diagram of the second protrusion on the support leg in the unfolded state of the support leg of this utility model.

[0041] Figure 7 for Figure 3 Enlarged view of the locking structure;

[0042] Figure 8 This is a diagram showing the connection structure between the second protrusion and the support foot of this utility model;

[0043] Figure 9 The supporting leg and the locking structure adaptive structure diagram in the supporting leg folding state of the utility model;

[0044] Figure 10 The locking structure exploded view of the utility model;

[0045] Figure 11 The locking structure sectional view of the utility model;

[0046] Figure 12 The extrusion block structure diagram of the utility model.

[0047] Explanation of the attached drawings:

[0048] 1, main rod; 11, limiting block

[0049] 2, supporting leg; 21, second protruding block; 22, second elastic member; 23, extrusion point;

[0050] 3, locking assembly; 31, trigger button; 32, clamping structure; 321, first protruding block; 322, limiting cover; 33, top block; 34, extrusion block; 35, supporting plate; 351, connecting column; 36, fixed seat; 37, lever; 38, third elastic member; 311, extension part;

[0051] 4, reinforcing rib;

[0052] 5, connecting seat;

[0053] 6, sliding sleeve; 61, first elastic member; 62, movable ring;

[0054] 7, connecting rod.

[0055] The utility model aims at realizing, function characteristics and advantages will combine embodiment, reference attached drawing further explanation. Specific implementation

[0056] The technical scheme in the utility model embodiment will be described clearly and completely in combination with the attached drawings of the utility model embodiment, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of the utility model protection.

[0057] It should be noted that if the embodiments of the utility model have directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directionality indication also changes accordingly.

[0058] In addition, if the embodiments of the utility model have descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary technical personnel in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the utility model.

[0059] Referring to Figure 1 and Figure 2 , the existing support foot usually includes a main rod 1 and a support foot 2 for supporting the main rod 1, one end of the support foot 2 is rotatably connected with the main rod 1 or a connecting seat 5 sleeved on the main rod 1, and the other end is a free end, when the free end of the support foot 2 is fully unfolded, the support foot 2 is used to support the main rod 1, and the main rod 1 can be connected with a shooting device, a mobile phone, a light supplementing lamp and the like; therefore, the support foot 2 is relatively common in live broadcast and shooting scenes; after use, the free end of the support foot 2 can be folded on the main rod 1, so that the support foot 2 is convenient to carry; as described in the background art, when the existing support foot is needed to be used, the elastic clamping mechanism can be directly pressed to unlock the support foot 2, but the unlocked state of the support foot 2 will not be automatically unfolded, and only slightly unfolded from the position close to the main rod; the support foot still needs to be manually rotated, so that the support foot 2 is completely unfolded and becomes a state capable of stably supporting the main rod 1.

[0060] In order to solve the above problems, the utility model provides a support foot frame capable of being completely unfolded with a sliding sleeve, referring to Figures 3-5 , which comprises

[0061] A main rod 1 is arranged on the main rod 1

[0062] An unfoldable or foldable support foot 2 is rotatably connected with the connecting seat 5 at one end and has a free end at the other end; when the free end of the support foot 2 is close to the main rod 1, the support foot 2 is folded, and when the free end of the support foot 2 is away from the main rod 1, the support foot 2 is unfolded;

[0063] Locking assembly 3; locking assembly 3 is used to adapt with the free end of support leg 2 when support leg 2 is folded, limit the movement of support leg 2 relative to main rod 1, and locking assembly 3 releases the limit after triggering;

[0064] The main rod 1 is also sleeved with a sliding sleeve 6, and a containing space is formed between the sliding sleeve 6 and the main rod 1. A first elastic member 61 is sleeved on the main rod 1, and the first elastic member 61 is located in the containing space. One end of the sliding sleeve 6 is rotatably connected with a connecting rod 7, and the other end of the connecting rod 7 is rotatably connected with the support leg 2.

[0065] When the free end of the support leg 2 is adapted with the locking assembly 3, the first elastic member 61 is elastically deformed and generates a restoring force. When the locking assembly 3 releases the limit, the restoring force of the first elastic member 61 makes the sliding sleeve 6 slide along the main rod 1, and the sliding sleeve 6 drives the connecting rod 7 to rotate, and the connecting rod 7 props open the free end of the support leg 2.

[0066] In this embodiment, the fully unfolded tripod means that the support leg 2 is unfolded to a state where it can support or stably support the main rod 1. Generally, when the tripod is fully unfolded, the support leg 2 needs to rotate a large angle, and the elastic clamping mechanism in the prior art only releases the support leg 2, but cannot automatically unfold the support leg, and cannot automatically fully unfold the support leg.

[0067] Compared with the prior art, after the locking assembly 3 releases the limit on the support leg 2, the restoring force of the first elastic member 61 of the utility model makes the sliding sleeve 6 slide along the main rod 1, and the sliding sleeve 6 drives the connecting rod 7 to rotate, and the connecting rod 7 props open the free end of the support leg 2. And make the support leg 2 fully open, ingenious design, solve the problem that after the release of the locking assembly 3 in the prior art, the support leg 2 is only in a slightly unfolded state, and the complete unfolding still needs to be manually rotated. The utility model releases the locking assembly 3, and the entire support leg can be fully unfolded to directly and stably support the main rod 1, which is more convenient to use.

[0068] In this embodiment, the triggering mode of the locking assembly 3 can be pressing or rotating or hitting, but is not limited thereto.

[0069] Referring to Figures 3-5, the free end of the support leg 2 is adapted with the locking assembly 3, one end of the first elastic member 61 abuts against the limiting block 11, and the other end abuts against the end of the sliding sleeve 6 away from the limiting block 11; at this time, the first elastic member 61 is compressed, and a force for making the sliding sleeve 6 slide along the main rod is generated, since the support leg 2 is locked at this time, the connecting rod 4 is in a parallel state with the main rod, the connecting rod 7 generates a supporting force on the sliding sleeve 6, the supporting force is just opposite to the elastic force generated by the first elastic member 61, thus the movement of the sliding sleeve 6 is limited; after the locking structure 3 is unlocked, the support leg 2 slightly opens due to the elasticity of the material itself, and slightly rotates the connecting rod 7, at this time, the connecting rod 7 is no longer parallel to the main rod 1; the connecting rod 7 cannot completely support the sliding sleeve 6, the sliding sleeve 6 slides along the main rod 1, and the connecting rod 7 rotates, further supporting the support leg 2, until the support leg 2 is completely unfolded.

[0070] In the embodiment, the first elastic member 61 is a spring; in order to better abut against the spring, the accommodating space further includes a movable ring 62 sleeved on the main rod 1, the movable ring 62 has a certain thickness, when the free end of the support leg 2 is adapted with the locking assembly 3, one end of the spring abuts against the thickness surface of the movable ring 62, and the thickness surface of the movable ring 62 abuts against the limiting block 11.

[0071] In the embodiment, the limiting block 11 is a convex block with an inclined surface, and in the folding state of the support leg 2, the limiting block 11 is located in the accommodating space formed between the sliding sleeve 6 and the main rod 1; in the sliding process of the sliding sleeve 6 along the main rod 1, the inclined surface can guide the sliding of the sliding sleeve, the limiting block 11 cannot block the sliding of the sliding sleeve 6, and can only limit the spring; preferably, a design avoiding groove is further arranged at the corresponding position of the sliding sleeve 6, further preventing the limiting block from limiting the sliding of the sliding sleeve 6 on the main rod 1.

[0072] In the embodiment, the reinforcing rib 4 is further included; one end of the reinforcing rib 4 is rotatably connected with the support leg 2, and the other end is rotatably connected with the main rod 1 / locking assembly 3; in the unfolding process of the support leg 2, the reinforcing rib 4 unfolds following the movement of the support leg 2; the reinforcing rib 4 can greatly improve the stability of the support leg 2.

[0073] In the embodiment, the connecting rod 7 is connected with the support leg 2 at the connecting position between the reinforcing rib 4 and the support leg 2 and the connecting position between the support leg 2 and the connecting seat 5; the connecting rod 7 is ensured to more easily support the support leg 2 in the rotating process.

[0074] In the embodiment, the bottom end of the sliding sleeve 6 is close to the locking assembly 3, and the top end is away from the locking assembly 3. The connecting rod 7 is rotatably connected to the top end of the sliding sleeve 6, and the other end is rotatably connected to the supporting leg 2. The number of the connecting rod 7 corresponds to the number of the supporting leg 7, and the number of the supporting leg 2 corresponds to the number of the reinforcing rib 4. Preferably, the number of the supporting leg 2, the connecting rod 7 and the reinforcing rib 4 is equal.

[0075] Referring to Figure 5 , the specific connection between the connecting rod 7 and the sliding sleeve 6 is that the connecting rod 7 is provided with a rotating shaft, and the side wall of the sliding sleeve 6 is provided with a pair of grooves or holes for inserting the rotating shaft. The rotating shaft inserted into the groove or hole of the side wall of the sliding sleeve 6 forms a structure that the one end of the connecting rod is rotatably connected to the sliding sleeve 6. The side wall of the groove or hole can provide support force or extrusion force to the rotating shaft, so that the connecting rod 7 can support the sliding sleeve 6.

[0076] In the embodiment, the locking assembly 3 includes a trigger button 31 and a clamping structure 32, and the top block 33 on the trigger button 31. When the supporting leg 2 is folded, the clamping structure 32 is used to adapt to the supporting leg 2 and limit the movement of the supporting leg 2 relative to the main rod 1.

[0077] The trigger button 31 is stimulated, the top block 33 on the trigger button 31 moves, and the top block 33 presses the supporting leg 2. The supporting leg 2 is out of the adaptive limitation of the clamping structure 32, and the supporting leg 2 is in the unfolded / expandable state.

[0078] Referring to Figures 5-8 , the clamping structure 32 includes a first protrusion 321, and the supporting leg 2 is provided with a second protrusion 21. The second protrusion 21 is connected to the supporting leg 2 through a second elastic element 22. When the clamping structure 32 is adapted to the supporting leg 2, the first protrusion 321 and the second protrusion 21 abut each other. The rotation of the supporting leg 2 relative to the main rod 1 is limited. When the top block 33 presses the supporting leg 2, the top block 33 presses the second protrusion 21, so that the second protrusion 21 is retracted into the supporting leg 2, and the abutment between the second protrusion 21 and the first protrusion 321 is released. The supporting leg 2 is in the unfolded / expandable state.

[0079] In the embodiment, the supporting leg 2 is provided with a space for accommodating the second protrusion 21 and the second elastic element 22. The second protrusion 21 can be completely accommodated in the supporting leg 2 and not exposed.

[0080] Referring to Figures 7-8The trigger button 31 is connected with the top block 33 through the lever 37 with a fulcrum, and the trigger button 31 and the top block 33 are arranged at two ends of the fulcrum of the lever 37 respectively; so that the moving directions of the trigger button 31 and the top block 33 are opposite; for example, when the trigger button 31 is pressed or impacted downward, one end of the lever 37 moves downward along with the trigger button 31; under the action of the fulcrum, the top block 33 at the other end of the lever 37 moves upward; the second protrusion 21 is pushed into the inside of the supporting leg 2; conversely, under the restoring force of the third elastic member 38, the trigger button 31 and one end of the lever 37 move upward, under the action of the fulcrum, the top block 33 moves downward; the second protrusion 21 no longer abuts against the first protrusion 321, and the second protrusion 21 extends out of the supporting leg 2 under the action of the second elastic member 22; if the supporting leg 2 is still folded on the main rod 1, the second protrusion 21 can be repositioned to abut against the first protrusion 321.

[0081] The second elastic member 22 can be a spring or a spring sheet.

[0082] Specifically, the lever 37 with a fulcrum is in a "V" shape, the trigger button 31 and the top block 33 are arranged at two ends of the "V" shape respectively; and the middle of the "V" shape is the fulcrum; in the rising and falling process of the trigger button 31, the end of the lever 37 connected with the top block 33 is arc displacement, in order to make the top block 33 only linear displacement, the top block 33 is rotatably connected with the lever 37; and the top block 33 is limited in a straight channel, so that the moving track of the top block 33 is a straight line; so that the top block 33 can more directly and effectively press the second protrusion 21.

[0083] In the embodiment, one end of the lever 37 is provided with a rotating shaft, the top block is provided with two opposite hole positions, the rotating shaft is inserted into the hole positions, and a rotatable structure of the top block 33 relative to the lever 37 is formed.

[0084] In the embodiment, the locking structure 3 further includes a supporting plate 35, one end of the supporting plate 35 is connected with the main rod 1, the other end is provided with a connecting column 351, the connecting column 351 is sleeved with the third elastic member 38, the other end of the third elastic member 38 abuts against the trigger button 31; and the fulcrum of the lever 37 falls on the supporting plate 35; the supporting plate 35 provides support force for the trigger button 31.

[0085] In the embodiment, one end of the supporting plate 35 connected with the main rod 1 can be directly connected or indirectly connected through other structures; the connecting column 351 can be multiple, and the third elastic member 38 is correspondingly provided with multiple connecting columns; stronger restoring force is provided.

[0086] In the embodiment, the locking structure 3 further includes a fixing seat 36, the supporting plate 35 is connected with the main rod 1 through the fixing seat 36; and the fixing seat 36 is provided with a connecting groove of the reinforcing rib 4, and the supporting plate 35 is used for pressing and fitting the connecting groove of the reinforcing rib 4.

[0087] Specifically, the trigger button 31 is provided with a groove, and the other end of the third elastic member 38 extends into the groove and abuts against the bottom or the sidewall of the groove; wherein the first elastic member can be a spring or a spring piece.

[0088] Referring to Figure 3 , the clamping structure 32 further comprises a limiting cover 322, and the first protrusion 321 is arranged on the limiting cover 322, and the limiting cover 322 is used to enclose an activity space with the support plate 35, one end of the trigger button 31 extends into the activity space, and the trigger button 31 moves in the activity space after being stimulated; the end of the trigger button 31 sleeved with the third elastic member 38 is provided with an extension 311, the extension 311 surrounds the trigger button 31 in the axial direction, and is used to abut against the limiting cover 322 or the support plate 35 to limit the displacement of the trigger button 31 in the activity space.

[0089] In the embodiment, the limiting cover 322 is provided with an opening for the top block to extend out of or retract into the activity space, and when the top block extends out of the activity space, the top block presses the second protrusion 21, so that the second protrusion 21 retracts into the support leg 2 and no longer abuts against the first protrusion 321; when the top block 33 retracts into the activity space, the second protrusion 21 abuts against the first protrusion 321 to limit the rotation of the support leg 2 relative to the main rod 1.

[0090] Referring to Figure 9 , in order to support the leg to expand a larger angle after being unlocked, and to fully support the leg 2 by the connecting rod, the side of the end of the trigger button 31 away from the top block is provided with a pressing block 34, when the trigger button 31 is pressed, the clamping structure 32 releases the restriction on the support leg 2, and at the same time, the pressing block 4 moves with the trigger button 31, presses the support leg 2, and makes the support leg 2 move in the direction of expansion; away from the original position; compared with slightly expanding by relying on the elasticity of the support leg material itself, the pressing block 4 can make the support leg expand a larger angle after being unlocked; and the connecting rod fully supports the leg 2 after being unlocked.

[0091] In the embodiment, the pressing block 34 protrudes from the side of the trigger button 31 and has a sloping surface structure; the sloping surface is used to guide the support leg 2 to move along the sloping surface when the pressing block 34 moves; when the pressing block 34 contacts the support leg 2 and presses the support leg 2 away from the original position, the contact point between the support leg 2 and the pressing block 311 is the pressing point 23; when the trigger button 31 is not pressed, the pressing block 34 does not contact the pressing point 23, and after the trigger button 31 is pressed, the pressing point 23 moves relative to the sloping surface of the pressing block 34, the support leg 2 gradually moves away from the position when it is locked, until the pressing point 23 cannot press the support leg 2.

[0092] In the embodiment, the main rod 1 is provided with a connecting seat 5, one end of the supporting leg 2 is rotatably connected with the connecting seat 5, and the other end is a free end; when the free end of the supporting leg 2 is matched with the locking assembly 3, the supporting leg 2 is in a folding state; when the free end of the supporting leg 2 is not matched with the locking assembly 3, the supporting leg 2 is in an unfolded or unfoldable state; wherein the connecting seat 5 can be sleeved on the main rod 1 and slide relative to the main rod 1.

[0093] The above merely describes the preferred embodiments of the present application, and does not limit the patent scope of the present application; any equivalent structural transformation made according to the contents of the present application specification and drawings, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A fully retractable support stand with sliding sleeve, characterized in that, The utility model relates to a foldable support, comprising: a main rod, a connecting seat arranged on the main rod an expandable or foldable support leg, one end of the support leg being rotatably connected to the connecting seat and the other end being a free end, the support leg being folded when the free end of the support leg is close to the main rod and the support leg being expanded when the free end of the support leg is away from the main rod a locking assembly the locking assembly being adapted to the free end of the support leg when the support leg is folded, limiting the movement of the support leg relative to the main rod, and the locking assembly being released from the limitation after being triggered a sliding sleeve being further sleeved on the main rod, a containing space being formed between the sliding sleeve and the main rod, a first elastic member being sleeved on the main rod and located in the containing space one end of the sliding sleeve being rotatably connected to a connecting rod, the other end of the connecting rod being rotatably connected to the support leg the first elastic member being elastically deformed when the free end of the support leg is adapted to the locking assembly, the elastic force of the first elastic member causing the sliding sleeve to slide along the main rod when the locking assembly is released from the limitation, the connecting rod being rotated by the sliding sleeve, and the connecting rod opening the free end of the support leg 2. The fully retractable support caster with sliding sleeve of claim 1, wherein, a limiting block being arranged on the main rod, one end of the first elastic member being abutted against the limiting block and the other end of the first elastic member being abutted against the end of the sliding sleeve away from the limiting block when the free end of the support leg is adapted to the locking assembly 3. The fully retractable support caster with sliding sleeve of claim 2, wherein, the first elastic member being a spring, a movable ring being further sleeved on the main rod in the containing space, one end of the spring being abutted against the movable ring and the other end of the spring being abutted against the limiting block when the free end of the support leg is adapted to the locking assembly 4. The fully retractable support stand with sliding sleeve of claim 1 or 2 or 3, wherein, a reinforcing rib being further arranged, one end of the reinforcing rib being rotatably connected to the support leg and the other end of the reinforcing rib being rotatably connected to the main rod / locking assembly 5. The fully retractable support caster with sliding sleeve of claim 4, wherein, the connecting rod being connected to the support leg between the connection between the reinforcing rib and the support leg and the connection between the support leg and the connecting seat 6. The fully retractable support caster with sliding sleeve of claim 4, wherein, one end of the sliding sleeve being a bottom end and the other end of the sliding sleeve being a top end, the connecting rod being rotatably connected to the top end of the sliding sleeve and the other end of the connecting rod being rotatably connected to the support leg 7. The fully retractable support caster with sliding sleeve of claim 1, wherein, the locking assembly comprising a trigger button and a clamping structure, a top block being arranged on the trigger button, the clamping structure being adapted to the support leg when the support leg is folded, limiting the movement of the support leg relative to the main rod the top block of the trigger button being moved when the trigger button is stimulated, the top block pressing the support leg, the support leg being in an expanded / expandable state after the support leg is released from the limitation of the clamping structure 8. The fully retractable support caster with sliding sleeve of claim 7, wherein, the clamping structure comprising a first protrusion, a second protrusion being arranged on the support leg and connected to the support leg by a second elastic member, the first protrusion and the second protrusion being abutted against each other when the clamping structure is adapted to the support leg the top block pressing the second protrusion when the top block presses the support leg, the second protrusion being retracted into the support leg, the abutment between the second protrusion and the first protrusion being released, and the support leg being in an expanded / expandable state.

9. The fully retractable support caster with sliding sleeve of claim 8, wherein, The trigger button is connected with the top block through a lever with a fulcrum, and the trigger button and the top block are respectively arranged at two ends of the fulcrum of the lever, so that the movement directions of the trigger button and the top block are opposite. The top block is rotatably connected with the lever.

10. The fully retractable support stand with sliding sleeve of claim 7 or 8 or 9, wherein, An extrusion block is arranged on one side of the trigger button away from the top block, the clamping structure is released from the limitation on the supporting leg by pressing the trigger button, and the extrusion block moves along with the trigger button to extrude the supporting leg, so that the supporting leg moves in the unfolded direction.

Images