Anti-sliding lifting leg, support, table and bed

Abstract

The utility model provides an anti-sliding lifting leg, a support, a table and a bed. The anti-sliding lifting leg comprises a lifting leg body, a lifting assembly, a one-way rotating piece, an operating rod and a connecting piece. The one-way rotating piece is arranged on the lifting leg body, the operating rod is connected with the lifting assembly, and the operating rod is rotationally arranged in the one-way rotating piece in a penetrating mode and can move in the axis direction of the one-way rotating piece. The connecting piece is arranged on the operating rod and can be connected with the one-way rotating piece. By means of the one-way locking characteristic of the one-way rotating piece, after the operating rod drives the connecting piece to be connected and matched with the one-way rotating piece, only the lifting assembly can drive the lifting leg body to extend by rotating the operating rod in the one-way mode, and due to the fact that the operating rod cannot rotate in the reverse direction, one-way locking of the lifting assembly can be achieved; therefore, the inner pipe of the lifting leg body is prevented from sliding down. The anti-sliding lifting leg solves the problems that an existing lifting leg automatically slides down and cannot keep a stable state for a long time, and use is affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lifting legs, in particular to a kind of anti-sliding lifting legs and support, table, bed. BACKGROUND

[0002] Lifting leg generally includes the inner tube and outer tube that are sleeved together, and the inner tube and outer tube are provided with screw nut lifting assembly, the upper end of screw rod is provided with gear box, the rotation of hand crank can be converted into the rotation of screw rod by the conversion of gear box, to realize the lifting of inner tube relative to outer tube of lifting leg in turn.

[0003] But the inner tube of lifting leg in prior art has the phenomenon of automatic sliding, cannot long keep stable state, influence use effect. UTILITY MODEL CONTENTS

[0004] In view of the defects in the prior art, the utility model aims at providing a kind of anti-sliding lifting legs and support, table, bed to solve the problems of automatic sliding of lifting leg, long keep stable state, influence use.

[0005] In order to realize the above-mentioned purpose, the utility model provides a kind of anti-sliding lifting legs, including lifting leg body;Lifting assembly, be located in the lifting leg body;Unidirectional rotating piece, be located on the lifting leg body;With the operation lever connected with the lifting assembly, rotation is arranged in the unidirectional rotating piece, and can move along the axial direction of the unidirectional rotating piece, the operation lever is used to make the lifting assembly drive the lifting leg body to lengthen or shorten;And connecting piece, be located on the operation lever, the connecting piece can be connected with the unidirectional rotating piece;When the connecting piece is connected with the unidirectional rotating piece, the operation lever can make unidirectional rotating action around the axis of the unidirectional rotating piece;When the connecting piece is disconnected with the unidirectional rotating piece, the operation lever can make free rotating action around the axis of the unidirectional rotating piece.

[0006] Preferably, it further includes mounting seat, the mounting seat is located on the lifting leg body, the unidirectional rotating piece and the connecting piece are located in the mounting seat, and the operation lever is movably arranged on the mounting seat.

[0007] Preferably, the first hole and the second hole are communicated in the mounting seat, the inner diameter of the first hole is greater than the inner diameter of the second hole, the unidirectional rotating piece is fixedly arranged in the first hole, and the connecting piece is movably arranged in the second hole.

[0008] Preferably, the first clamping groove and the second clamping groove are arranged in the mounting seat, the first clamping groove is close to the first hole, and the second clamping groove is close to the second hole;The first limiting piece is arranged in the first clamping groove, and the second limiting piece is arranged in the second clamping groove.

[0009] Preferably, the connecting piece is detachably arranged on the operating rod.

[0010] Preferably, the operating rod is provided with a connecting hole extending along the length direction of the operating rod and penetrating through one end surface of the operating rod.

[0011] Preferably, one end of the operating rod is provided with a crank handle.

[0012] The utility model also provides a support, a table and a bed, all including the anti-sliding lifting leg of above.

[0013] The utility model has the advantages of:

[0014] The anti-sliding lifting leg, the support, the table and the bed provided by the utility model utilize the one-way locking characteristic of the one-way rotating piece, after the operating rod drives the connecting piece to connect and cooperate with the one-way rotating piece, the one-way rotating operating rod can only make the lifting assembly drive the elongation of the lifting leg body, since the operating rod cannot be reversely rotated, in this way, the one-way locking of the lifting assembly can be realized, so that the inner tube of the lifting leg body is prevented from sliding downward. After the operating rod drives the connecting piece to be disconnected from the one-way rotating piece, the operating rod can be positively rotated or reversely rotated, so that the lifting assembly is driven to elongate or shorten the lifting leg body. The anti-sliding lifting leg solves the problems of the existing lifting leg, such as automatic sliding, inability to keep a stable state for a long time and influence on use. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally indicated by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0016] Figure 1 The structure schematic view of the anti-sliding lifting leg provided by one embodiment of the utility model is installed on the table plate.

[0017] Figure 2 The partial schematic view of the anti-sliding lifting leg;

[0018] Figure 3 The cross-sectional schematic view of the anti-sliding lifting leg;

[0019] Figure 4 The structure schematic view of the cooperation between the operating rod and the connecting piece;

[0020] Figure 5 The cross-sectional schematic view of the mounting seat;

[0021] Figure 6Fig. 1 is a sectional view of the operating rod, connecting piece, one-way rotating piece and mounting seat;

[0022] Reference signs:

[0023] 10, lifting leg body; 11, outer tube; 12, inner tube; 13, support seat; 20, lifting assembly; 30, one-way rotating piece; 40, operating rod; 41, connecting hole; 42, crank; 50, connecting piece; 51, threaded hole; 60, mounting seat; 61, first hole; 62, second hole; 63, first clamping groove; 64, second clamping groove; 70, transmission rod. DETAILED DESCRIPTION

[0024] The embodiments of the technical scheme of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0025] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the usual meaning understood by the technical personnel in the field to which the present application belongs.

[0026] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on 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 therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0027] In addition, the terms "first", "second", and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0028] In the present application, unless otherwise specifically specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; 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 or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] like Figures 1-6 As shown, in one embodiment of this utility model, an anti-slip lifting leg is provided, including a lifting leg body 10, a lifting assembly 20, a one-way rotating component 30, an operating lever 40, and a connecting component 50. The lifting leg body 10 includes an outer tube 11, an inner tube 12, and a support base 13. The inner tube 12 is disposed inside the outer tube 11 and is telescopic relative to the outer tube 11. The support base 13 is disposed at the top of the inner tube 12 and is used to connect the lifting leg body 10 to a bracket, table, or bed, etc. In this embodiment, the lifting assembly 20 adopts a hand-cranked screw and nut lifting mechanism, and the gearbox of the lifting assembly 20 is located near the top of the inner tube 12. Figure 3 Only the gearbox of the lifting assembly 20 is shown in the image.

[0031] A one-way rotating component 30 is fixedly mounted on the support base 13 of the lifting leg body 10. The one-way rotating component 30 uses a one-way bearing without an inner ring, such as a one-way needle roller bearing. One-way bearings are existing technology and will not be described in detail in this embodiment. The operating lever 40 is connected to the lifting assembly 20. The operating lever 40 rotatably passes through the one-way rotating component 30 and can move along the axial direction of the one-way rotating component 30. The operating lever 40 is connected to the gearbox of the lifting assembly 20. By rotating the operating lever 40, the rotational motion of the operating lever 40 can be converted into the rotational motion of the lead screw, thereby realizing the extension or retraction of the lifting leg body 10. The connecting component 50 is fixed on the operating lever 40 and can be connected to the one-way rotating component 30.

[0032] When the connecting piece 50 is connected to the one-way rotating piece 30, the operating lever 40 can rotate unidirectionally around the axis of the one-way rotating piece 30. At this time, rotating the operating lever 40 can only cause the inner tube 12 to rise, that is, the lifting leg body 10 to extend. When the connecting piece 50 is disconnected from the one-way rotating piece 30, the operating lever 40 can rotate freely around the axis of the one-way rotating piece 30. At this time, rotating the operating lever 40 can cause the inner tube 12 to rise or fall, that is, the lifting leg body 10 to extend or shorten.

[0033] The anti-sliding lifting leg disclosed in the embodiment utilizes the one-way locking characteristic of the one-way rotating member 30. After the connecting member 50 is connected and matched with the one-way rotating member 30 by the operation lever 40, the one-way rotating operation lever 40 can only make the lifting assembly 20 drive the lifting leg body 10 to extend. Since the operation lever 40 cannot be reversely rotated, the one-way locking of the lifting assembly 20 can be achieved, thereby preventing the inner tube 12 of the lifting leg body 10 from sliding downward. After the connecting member 50 is disconnected from the one-way rotating member 30 by the operation lever 40, the operation lever 40 can be positively or reversely rotated to drive the lifting assembly 20 to drive the lifting leg body 10 to extend or shorten. The anti-sliding lifting leg solves the problems of the existing lifting leg, such as automatic sliding, inability to maintain a stable state for a long time, and influence on use.

[0034] In one embodiment, the anti-sliding lifting leg further comprises a mounting seat 60 fixedly installed on the support seat 13 of the lifting leg body 10. The one-way rotating member 30 and the connecting member 50 are arranged in the mounting seat 60, and the operation lever 40 is movably arranged in the mounting seat 60. Specifically, the mounting seat 60 is provided with a first hole 61 and a second hole 62 in communication. The first hole 61 and the second hole 62 are coaxially arranged. The inner diameter of the first hole 61 is greater than the inner diameter of the second hole 62. The one-way rotating member 30 is fixedly arranged in the first hole 61, and the connecting member 50 is movably arranged in the second hole 62.

[0035] The cross section of the connecting member 50 can be circular or non-circular. The diameter of the circumscribed circle of the cross section of the connecting member 50 is equal to the inner diameter of the one-way rotating member 30. The mounting seat 60 not only enables the one-way rotating member 30 and the connecting member 50 to be mounted, but also facilitates the connection and disconnection of the connecting member 50 and the one-way rotating member 30 after the operation lever 40 is moved.

[0036] Further, the mounting seat 60 is provided with a first clamping groove 63 and a second clamping groove 64. The first clamping groove 63 is close to the first hole 61, and the second clamping groove 64 is close to the second hole 62. The first clamping groove 63 is provided with a first limiting member, and the second clamping groove 64 is provided with a second limiting member. The first limiting member and the second limiting member are both C-shaped clamping springs. The diameter of the inscribed circle of the first limiting member and the second limiting member is smaller than the diameter of the circumscribed circle of the connecting member 50. By designing the first limiting member and the second limiting member, the one-way rotating member 30 and the connecting member 50 can be assembled into the mounting seat 60. Moreover, the connecting member 50 and the one-way rotating member 30 can be firmly limited in the mounting seat 60, thereby improving the stability of use.

[0037] In one embodiment, the connecting member 50 is detachably arranged on the operation lever 40. The connecting member 50 is provided with a threaded hole 51. A locking bolt is arranged in the threaded hole 51. One end of the locking bolt abuts against the operation lever 40 after passing through the threaded hole 51, thereby preventing the connecting member 50 from moving on the operation lever 40.

[0038] In one embodiment, the operating rod 40 is provided with a connecting hole 41 extending along the length direction of the operating rod 40 and penetrating through one end surface of the operating rod 40. When two or more lifting legs are used together, the gear boxes of adjacent lifting assemblies 20 need to be connected by the transmission rod 70, so that the elongation or shortening of all the lifting legs can be realized by rotating the operating rod 40. Therefore, by designing the connecting hole 41 on the operating rod 40, the connecting hole 41 can be connected with the transmission rod 70, the cross section of the transmission rod 70 is non-circular, and the connecting hole 41 is a non-circular hole matched with the transmission rod 70. In this way, the transmission rod 70 can be rotated synchronously while the operating rod 40 is rotated.

[0039] In one embodiment, in order to facilitate the user to rotate the operating rod 40, the operating rod 40 is provided with a crank 42 at one end.

[0040] The embodiment also provides a support, a table and a bed, all of which comprise the anti-sliding lifting leg described above. Since the anti-sliding lifting leg described above is adopted, the working principle and technical effects of the anti-sliding lifting leg in the above embodiment are the same, and will not be described here.

[0041] In the specification of the utility model, a large number of specific details are explained. However, it can be understood that the embodiments of the utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail, so as not to obscure the understanding of the specification.

[0042] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be covered in the scope of the claims and the specification of the utility model.

Claims

1. An anti-slip lift leg, characterized by, The anti-sliding lifting leg comprises: a lifting leg body (10); a lifting assembly (20) arranged in the lifting leg body (10); a one-way rotating member (30) arranged on the lifting leg body (10); an operating rod (40) connected with the lifting assembly (20), which is rotatably arranged in the one-way rotating member (30) and is movable along the axis of the one-way rotating member (30), and the operating rod (40) is used to drive the lifting assembly (20) to elongate or shorten the lifting leg body (10); and a connecting member (50) arranged on the operating rod (40), which is connectable with the one-way rotating member (30); when the connecting member (50) is connected with the one-way rotating member (30), the operating rod (40) can make one-way rotating movement around the axis of the one-way rotating member (30); when the connecting member (50) is disconnected from the one-way rotating member (30), the operating rod (40) can make free rotating movement around the axis of the one-way rotating member (30).

2. The anti-slip lift leg of claim 1, wherein, The anti-sliding lifting leg further comprises a mounting seat (60) arranged on the lifting leg body (10), and the one-way rotating member (30) and the connecting member (50) are arranged in the mounting seat (60), and the operating rod (40) is movably arranged in the mounting seat (60).

3. The anti-slip lift leg of claim 2, wherein, The mounting seat (60) is provided with a first hole (61) and a second hole (62) in communication, the inner diameter of the first hole (61) is greater than that of the second hole (62), the one-way rotating member (30) is fixedly arranged in the first hole (61), and the connecting member (50) is movably arranged in the second hole (62).

4. The anti-slip lift leg of claim 3, wherein, The mounting seat (60) is provided with a first clamping groove (63) and a second clamping groove (64), the first clamping groove (63) is close to the first hole (61), and the second clamping groove (64) is close to the second hole (62); the first clamping groove (63) is provided with a first limiting member, and the second clamping groove (64) is provided with a second limiting member.

5. The anti-slip lift leg of claim 1, wherein, The connecting member (50) is detachably arranged in the operating rod (40).

6. The anti-slip lift leg of claim 1, wherein, The operating rod (40) is provided with a connecting hole (41) extending along the length direction of the operating rod (40) and penetrating through one end surface of the operating rod (40).

7. The anti-slip lift leg of claim 1, wherein, One end of the operating rod (40) is provided with a crank (42).

8. A stent, characterized by The anti-sliding lifting leg comprises the anti-sliding lifting leg according to any one of claims 1-7.

9. A table, characterized in that The anti-sliding lifting leg comprises the anti-sliding lifting leg according to any one of claims 1-7.

10. A bed characterized in that, The anti-sliding lifting leg comprises the anti-sliding lifting leg according to any one of claims 1-7.

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