Lock catch adjusting structure, telescopic fixing rod and table lamp

Abstract

The utility model relates to a lock catch adjusting structure, a telescopic fixing rod and a desk lamp, which comprises a pipe sleeve detachably arranged at one end of a first rod piece, one end of the second rod piece can extend into the pipe sleeve, and the second rod piece, the first rod piece and the pipe sleeve are concentric and are in pluggable sliding fit; one end of the lock handle is hinged to the pipe sleeve; a containing cavity used for containing a second rod piece is formed between a first matching part formed in the pipe sleeve and a second matching part formed on the lock handle, the lock handle is pulled to the positions of different angles, and when the lock handle is pulled to the lowest position and the lock handle is attached to the outer portion of the pipe sleeve, the first matching part and the second matching part jointly extrude the outer wall of the second rod piece at the moment; the second rod piece is fixed; after the lock handle is pulled until the second matching part is separated from the second rod piece, the second rod piece can be subjected to telescopic adjustment, the lock handle is simple to adjust, and after the lock handle is in contact locking, the pre-tightening force of the pipe sleeve on the second rod piece is small, and telescopic adjustment is smooth.

Description

Technical Field

[0001] The utility model relates to the technical field of lock buckles, and in particular to a lock buckle adjustment structure, a telescopic fixing rod and a table lamp. Background Art

[0002] A telescopic rod is a rod that can be adjusted in length and is relatively widely used.

[0003] The Chinese utility model patent with application number CN201920630852.7 has the following structure: an annular hoop body with an opening, a bushing is fixed on the inner surface of the annular hoop body, the first end of the bushing abuts against the annular groove portion, and a protrusion is fixed on the annular groove portion; through grooves are provided along the circumference of the annular hoop body on both sides of the opening, and the through grooves are located directly above the first end of the bushing; locking mechanisms are provided on the annular hoop body on both sides of the through grooves; the locking mechanism includes a first flange and a second flange fixed on both sides of the opening and a fastener; in this embodiment The fastener on one side of the through-slot includes a bolt and a nut, and the bolt passes through the first flange and the second flange in sequence and is fastened by the nut; the fastener on the other side of the through-slot includes a bolt, a locking knob, a spring, a connecting shaft, a handle and a gasket, and the bolt passes through the locking knob, the first flange, the second flange, the gasket and the connecting shaft in sequence, the bolt is connected to the locking knob and the connecting shaft through threads, the handle is rotatably connected to the connecting shaft, the locking knob and the first flange abutting end faces are provided with mutually matching meshing teeth, and a spring is inserted between the gasket and the second flange.

[0004] The applicant found that after use, the spring-equipped device has high manufacturing costs, high assembly difficulty, and low locking force. However, after the lock is unlocked and locked, there is still a high pre-tightening force, and the inner tube does not slide outward smoothly. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a lock adjustment structure, comprising:

[0006] A pipe sleeve detachably mounted on one end of the first rod, wherein the pipe sleeve is centrally connected;

[0007] One end of the second rod can be inserted into the pipe sleeve, and the second rod is concentric with the first rod and the pipe sleeve and can be plugged in and slidably matched;

[0008] A locking handle, one end of which is hingedly connected to the pipe sleeve;

[0009] An accommodating cavity for accommodating the second rod is constructed between the first matching portion formed in the sleeve and the second matching portion formed on the locking handle. When the locking handle is rotated at different angles, the second matching portion can be attached to or detached from the outer wall of the second rod. When the locking handle is bent until the second matching portion is attached to the outer wall of the sleeve, the second matching portion and the first matching portion jointly squeeze the outer wall of the second rod. When the second matching portion is bent until it detaches from the outer wall of the second rod, the second rod can move.

[0010] In this solution, further, the locking handle includes a first connecting portion, the second matching portion is concavely formed on the first connecting portion, and the second matching portion is a variable diameter curved surface, so that when the locking handle is rotated to different positions, the second matching portion can be attached to or detached from the outer wall of the second rod.

[0011] In this solution, further, a second connecting portion is formed on the pipe sleeve, and the first connecting portion and the second connecting portion are hingedly connected by a pin.

[0012] In this solution, further, a first limiting portion is formed on the pipe sleeve at the lower side of the second connecting portion.

[0013] In this solution, further, a second limiting portion is formed on the lower side of the first connecting portion of the locking handle, and when the locking handle is bent to fit into the outer wall of the sleeve, the second limiting portion abuts against the first limiting portion.

[0014] In this solution, further, the lower end of the pipe sleeve is a threaded portion, which is locked on the end of the first rod through the threaded portion.

[0015] In another embodiment, a telescopic fixing rod is provided, comprising the lock adjustment structure of the above-mentioned solution.

[0016] In another solution, a desk lamp is provided, comprising the telescopic fixing rod of the above solution.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The design of the sleeve and the locking handle is simple. The locking handle is hingedly connected to the second connecting part of the sleeve through the first connecting part. The threaded part on the sleeve is locked to the end of the first rod. The second rod passes through the sleeve and extends into the first rod. The locking handle is bent to different angles. When the locking handle is bent to the lowermost position and the locking handle and the outside of the sleeve fit together, the first matching part and the second matching part jointly squeeze the outer wall of the second rod to fix the second rod. After the locking handle is bent until the second matching part disengages from the second rod, the second rod can be telescopically adjusted. The adjustment of the locking handle is simple. After the locking handle is contacted and locked, the pre-tightening force of the sleeve on the second rod is small, and the telescopic adjustment is smooth.

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The exploded structure diagram of a lock adjustment structure of the utility model Figure 1 ;

[0021] Figure 2 The exploded structure diagram of a lock adjustment structure of the utility model Figure 2 ;

[0022] Figure 3 It is a schematic diagram of the structure when the lock adjustment structure is in unlocked state;

[0023] Figure 4 It is a structural schematic diagram of the lock adjustment structure when it is in a locked state. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figure 1 and Figure 2 This embodiment provides a lock adjustment structure, including:

[0029] The pipe sleeve 2 is detachably mounted on one end of the first rod 1. The pipe sleeve 2 is centrally connected. The lower end of the pipe sleeve 2 is a threaded portion 2A, which is locked to the end of the first rod 1 through the threaded portion 2A.

[0030] One end of the second rod 3 can be inserted into the pipe sleeve 2, and the second rod 3 is concentric with the first rod 1 and the pipe sleeve 2 and can be plugged in and slidably matched;

[0031] One end of the lock handle 4 is hingedly connected to the pipe sleeve 2. The lock handle 4 includes a first connection part 4A. A second connection part 2B is formed on the pipe sleeve 2. The first connection part 4A and the second connection part 2B are hingedly connected via a pin 5.

[0032] Specifically, a first matching portion 2C formed in the sleeve 2 and a second matching portion 4B formed on the lock handle 4 form an accommodating cavity for accommodating the second rod 3;

[0033] When the lock handle 4 is rotated at different angles, the second matching portion 4B can be attached to or separated from the outer wall of the second rod 3. Figure 4 When the lock handle 4 is moved to the point where the second matching portion 4B is attached to the outer wall of the sleeve 2, the second matching portion 4B and the first matching portion 2C jointly squeeze the outer wall of the second rod 3. Figure 3 When the second matching portion 4B is moved away from the outer wall of the second rod 3, the second rod 3 can move.

[0034] Specifically, the second matching portion 4B is concavely formed on the first connecting portion 4A, and the second matching portion 4B is a variable diameter curved surface. When the lock handle 4 rotates to different positions, the second matching portion 4B can be attached to or separated from the outer wall of the second rod 3.

[0035] In addition, a first limiting portion 2D is formed on the pipe sleeve 2 at the lower side of the second connecting portion 2B.

[0036] like Figure 1 and Figure 2A second limiting portion 4C is formed on the lower side of the first connecting portion 4A of the locking handle 4. Both the first limiting portion 2D and the second limiting portion 4C have inclined surfaces. When the locking handle 4 is moved to fit into place against the outer wall of the pipe sleeve 2, the second limiting portion 4C abuts against the first limiting portion 2D. It can be seen that the design of the sleeve 2 and the locking handle 4 is simple. The locking handle 4 is hingedly connected to the second connecting portion 2B of the sleeve 2 through the first connecting portion 4A. The threaded portion 2A on the sleeve 2 is locked to the end of the first rod 1. The second rod 3 passes through the sleeve 2 and extends into the first rod 1. The locking handle 4 is moved at different angles. When the locking handle 4 is moved to the lowermost position and the locking handle 4 and the outside of the sleeve 2 are in contact, the first matching portion 2C and the second matching portion 4B jointly squeeze the outer wall of the second rod 3 to fix the second rod 3; after the locking handle 4 is moved until the second matching portion 4B is disengaged from the second rod 3, the second rod 3 can be telescopically adjusted. The adjustment of the locking handle 4 is simple. After the locking handle 4 is contacted and locked, the pre-tightening force of the sleeve 2 on the second rod 3 is small, and the telescopic adjustment is smooth.

[0037] In another embodiment, a telescopic fixing rod is provided, comprising the lock adjustment structure of the above embodiment.

[0038] Another embodiment provides a desk lamp, including the telescopic fixing rod of the above embodiment, and the illumination height of the desk lamp is adjusted through a locking structure. Of course, the desk lamp is only shown as one of the embodiments, and any suitable telescopic rod structure can be used with the locking structure of this embodiment.

[0039] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A lock adjustment structure, characterized in that: include: A pipe sleeve detachably mounted on one end of the first rod, wherein the pipe sleeve is centrally connected; One end of the second rod can be inserted into the pipe sleeve, and the second rod is concentric with the first rod and the pipe sleeve and can be plugged in and slidably matched; A locking handle, one end of which is hingedly connected to the pipe sleeve; An accommodating cavity for accommodating the second rod is constructed between the first matching portion formed in the sleeve and the second matching portion formed on the locking handle. When the locking handle is rotated at different angles, the second matching portion can be attached to or detached from the outer wall of the second rod. When the locking handle is bent until the second matching portion is attached to the outer wall of the sleeve, the second matching portion and the first matching portion jointly squeeze the outer wall of the second rod. When the second matching portion is bent until it detaches from the outer wall of the second rod, the second rod can move.

2. A buckle adjustment structure according to claim 1, characterized in that: The locking handle comprises a first connecting portion, the second matching portion is concavely formed on the first connecting portion, and the second matching portion is a variable diameter curved surface. When the locking handle is rotated to different positions, the second matching portion can be attached to or separated from the outer wall of the second rod.

3. A buckle adjustment structure according to claim 2, characterized in that: A second connecting portion is formed on the pipe sleeve, and the first connecting portion and the second connecting portion are hingedly connected via a pin.

4. A buckle adjustment structure according to claim 3, characterized in that: A first limiting portion is formed on the pipe sleeve at the lower side of the second connecting portion.

5. A buckle adjustment structure according to claim 4, characterized in that: A second limiting portion is formed on the lower side of the first connecting portion of the locking handle. When the locking handle is moved to fit in place against the outer wall of the sleeve, the second limiting portion abuts against the first limiting portion.

6. The buckle adjustment structure according to claim 1, characterized in that: The lower end of the pipe sleeve is a threaded portion, which is locked on the end of the first rod through the threaded portion.

7. A telescopic fixing rod, characterized in that: It comprises the lock adjustment structure described in any one of claims 1-6.

8. A desk lamp, characterized in that: The invention comprises the telescopic fixing rod as claimed in claim 7.

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