Telescopic handle one-button linkage disassembly structure

Abstract

The present invention discloses a one-key linkage disassembly structure of a telescopic handle, comprising a mounting seat and a telescopic handle. The telescopic handle is a telescopic structure with a press-type unlocking mechanism. The press-type unlocking mechanism is unlocked under pressure to achieve the telescopic structure. A lower locking pin that is unlocked under pressure is provided at the bottom of the telescopic handle. After the telescopic structure is fully retracted, the lower extrusion piece is squeezed to retract the lower locking pin to achieve unlocking. The present invention arranges three locking seats with locking pins in three sleeves and arranges a plurality of pin holes that match the locking pins. When stretching and contracting, each locking pin is pressed to match the corresponding pin hole to achieve locking after stretching and contraction. After contraction, the lower extrusion piece is squeezed to retract the lower locking pin to remove the telescopic handle. The whole process is controlled by one key, which has the advantages of convenience and speed.

Description

Technical Field

[0001] The invention relates to a telescopic handle disassembly structure, and in particular to a telescopic handle one-button linkage disassembly structure. Background Art

[0002] The telescopic handle is generally used on a folding camper. When in use, it is inserted into the mounting seat and locked, and then unlocked by pressing the unlocking structure and pulled out to different lengths to push or pull the camper.

[0003] like Fig.10 As shown, the handle on the market is achieved by providing a sleeve 01 with a pressing portion 011 on the pin hole of the outer sleeve 02, and pressing the pressing portion 011 internally to press the spring pin 04 on the inner sleeve 03 to unlock it, thereby achieving extension and retraction. In addition, the connection between the outer sleeve 02 and the mounting seat body also adopts a combination of a spring pin 05 and a pin hole, that is, a spring pin 05 is provided in the outer sleeve 02 and a pin hole for the spring pin 05 to extend into is provided on the mounting seat body.

[0004] The above structure has the following problems: 1. The locking structure is not linked with the telescopic structure, and one-button press control of telescopic and quick release cannot be achieved, which is extremely inconvenient to use; 2. A sleeve with a pressing portion and other structures need to be set up separately for pressing the spring pin, which makes the structure complicated. Summary of the invention

[0005] Based on the deficiency that the locking structure in the prior art is not linked with the telescopic structure, and the telescopic and quick release cannot be controlled by one button, resulting in the inability to quickly achieve telescopic, installation and disassembly, the present invention provides a one-button linkage disassembly structure for a telescopic handle.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] The one-key linkage disassembly structure of the telescopic handle comprises a mounting seat body and a telescopic handle, wherein the telescopic direction of the telescopic handle is defined as vertical, and the direction perpendicular to the telescopic direction of the telescopic handle is defined as horizontal. An insertion groove or an insertion hole is provided on the mounting seat body, and a locking groove or a locking hole is provided on the side wall of the insertion groove or the insertion hole, and the bottom end of the telescopic handle is inserted in the insertion groove or the insertion hole; the telescopic handle comprises an inner sleeve, a middle sleeve and an outer sleeve which are slidably sleeved and telescopic, a first pin hole and a second pin hole are provided on the lower left side of the outer sleeve, the second pin hole is located above the first pin hole, a third pin hole is provided on the upper right side of the outer sleeve, a fourth pin hole and a fifth pin hole are provided on the lower left side of the middle sleeve, a sixth pin hole is provided on the upper left side of the middle sleeve, and a press-type unlocking mechanism is provided in the inner sleeve, and the press-type unlocking mechanism has the function of automatically popping out and The upper locking pin which can be pressed back is provided with a middle locking seat at the bottom of the middle sleeve, and a middle extrusion piece which can slide in the vertical direction, a middle locking piece which can slide in the horizontal direction and a middle locking spring which applies a rightward elastic force to the middle locking piece are provided in the middle locking seat, and a group of middle extrusion inclined surfaces which abut against each other are provided on the middle extrusion piece and the middle locking piece, and a left locking pin and a right locking pin are provided on the left and right sides of the middle locking piece respectively. When the middle extrusion piece is under pressure, the middle locking piece is driven to move to the left side through the middle extrusion inclined surface, wherein the left locking pin cooperates with the first pin hole, and the right locking pin cooperates with the third pin hole; a lower locking seat is provided at the bottom of the outer sleeve, and a lower extrusion piece which can slide in the vertical direction and a lower locking piece which can slide in the horizontal direction are provided in the lower locking seat, and a group of lower extrusion pieces which abut against each other are provided on the lower extrusion piece and the lower locking piece The lower locking member is provided with a lower locking pin which can extend out of the outer sleeve, and a lower locking spring is provided in the lower locking seat, and the lower locking spring applies elastic force to the lower locking member so that the lower locking pin on the lower locking member passes through the outer sleeve and extends into the locking groove or locking hole. When the lower extrusion member is under pressure, under the action of the lower extrusion inclined surface, the lower locking member retracts into the outer sleeve tube, thereby releasing the lock between the telescopic handle and the mounting seat body; wherein the elastic force of the lower locking spring is greater than the elastic force of the middle locking spring; the unlocking and extension process of the telescopic handle has the following states: in the first state, the telescopic handle is fully retracted, the left locking pin is located in the first pin hole, the upper locking pin is located in the second pin hole, the middle extrusion member and the lower extrusion member are both compressed, and the telescopic handle is unlocked from the mounting seat body; in the second state, the downward pressing unlocking Mechanism, the upper locking pin disengages from the second pin hole, the inner sleeve moves upward to switch the upper locking pin to the fourth pin hole, the pressure of the middle extrusion piece is released, and the middle locking seat is squeezed by the lower extrusion piece so that the left locking pin is stuck in the first pin hole due to friction, and the telescopic handle and the mounting seat body are unlocked; in the third state, the inner sleeve and the middle sleeve are pressed down, the left locking pin is separated from the top of the first pin hole wall, the friction force disappears, and the left locking pin moves to the right under the action of the middle locking spring and disengages from the first pin hole, and under the action of the lower locking spring, the lower locking pin passes through the outer sleeve and extends into the locking groove or the locking hole, and the telescopic handle is locked with the mounting seat body; in the fourth state, the middle sleeve and the inner sleeve are pulled until the right locking pin extends into the third pin hole under the action of the middle locking spring, and the telescopic handle is in the first extension state;In the fifth state, the push-type unlocking mechanism is pressed down to disengage the upper locking pin from the fourth pin hole, and the inner sleeve is continuously pulled until the upper locking pin is inserted into the sixth pin hole, and the telescopic handle is in a fully extended state. This solution provides three locking seats with locking pins on three sleeves and provides a number of pin holes that match the locking pins. During stretching and contraction, each locking pin is pressed to match the corresponding pin holes to achieve locking after stretching and contraction. After contraction, the lower extrusion piece is squeezed to retract the lower locking pin to remove the telescopic handle. The whole process is controlled by one button, which is convenient and fast. ;

[0008] Specifically, the push-type unlocking mechanism includes a push-type unlocking mechanism arranged at the top of the inner sleeve and an inner locking seat arranged at the bottom of the inner sleeve, the inner locking seat is provided with an upper extrusion member sliding along the extension and retraction direction of the telescopic handle and an upper locking member sliding perpendicular to the extension and retraction direction of the telescopic handle, the upper extrusion member and the upper locking member are provided with a group of upper extrusion inclined surfaces abutting against each other, and the upper extrusion member drives the upper locking member to slide inward through the upper extrusion inclined surfaces, the upper locking pin is located on the upper locking member and the upper locking seat is provided with an upper locking spring for pushing the upper locking member outward; the bottom end of the push-type transmission structure is connected to the upper extrusion member for transmitting the pressing force to the upper extrusion member and driving the upper locking member and the upper locking pin to retract.

[0009] Specifically, the push transmission structure includes a handle mounted on the top of the inner sleeve, a push button embedded in the handle, and a transmission rod arranged in the inner sleeve. One end of the transmission rod is abutted against or connected to the push button, and the other end of the transmission rod is connected to the middle extrusion piece. The transmission rod is provided with a return spring for returning to its original position after being pressed.

[0010] Specifically, the lower locking seat is inserted at the bottom of the outer sleeve, and the lower locking seat and the outer sleeve are respectively provided with threaded columns and mounting holes, and the two are locked and fixed by screws extending into the mounting holes and the threaded columns.

[0011] Specifically, a horizontally penetrating lower locking cavity and a vertical lower extrusion cavity are provided in the lower locking seat, two symmetrical lower locking pieces are provided in the lower locking cavity, and a lower extrusion groove is provided on the top of the lower locking piece; the lower extrusion piece is arranged in the lower extrusion cavity, and two lower extrusion parts are provided at the bottom of the lower extrusion piece, the two extrusion parts extend into the lower extrusion groove, and the lower extrusion inclined surface is located on the lower extrusion groove and the lower extrusion part.

[0012] Specifically, a strip-shaped lower limit hole is opened on the side wall of the lower extrusion cavity, and a lower limit boss is provided on the lower extrusion piece. The lower limit boss extends outward and extends into the limit hole.

[0013] Specifically, the top of the middle locking seat extends into the middle sleeve and a middle groove is provided on the side wall of the extending part, and a middle flange is provided on the middle sleeve. The middle flange is inserted into the middle groove to limit the locking seat; the top of the upper locking seat extends into the inner sleeve and an upper groove is provided on the side wall of the extending part, and an upper flange is provided on the middle sleeve. The upper flange is inserted into the upper groove to limit the locking seat.

[0014] Specifically, a horizontal middle locking groove and a vertical middle extrusion cavity are provided in the middle locking seat, the middle locking piece is arranged in the middle locking groove and can slide along the middle locking groove, a middle extrusion groove is provided on the top of the middle locking piece, the middle extrusion piece is located in the middle extrusion cavity and a middle extrusion part is provided on the bottom of the middle extrusion piece, the middle extrusion part extends into the middle extrusion groove, and the middle extrusion inclined surface is located on the middle extrusion part and the middle extrusion groove.

[0015] Specifically, a strip-shaped middle limiting hole is opened on the side wall of the middle extrusion cavity, and a middle limiting boss is provided on the middle extrusion piece. The middle limiting boss extends outward and extends into the middle limiting hole.

[0016] Specifically, a horizontal upper locking groove and a vertical upper extrusion cavity are provided in the upper locking seat, the upper locking piece is arranged in the upper locking groove and can slide along the upper locking groove, an upper extrusion groove is provided on the top of the upper locking piece, the upper extrusion piece is located in the upper extrusion cavity and an upper extrusion part is provided on the bottom of the upper extrusion piece, the upper extrusion part extends into the upper extrusion groove, and the upper extrusion slope is located on the upper extrusion part and the upper extrusion groove.

[0017] Compared with the prior art, the advantages of the present invention are as follows: the present invention arranges three locking seat bodies with locking pins in three sleeves and arranges a plurality of pin holes that cooperate with the locking pins. During stretching and contraction, each locking pin is pressed to cooperate with the corresponding pin hole to achieve locking after stretching and contraction. After contraction, the lower extrusion part is squeezed to retract the lower locking pin to remove the telescopic handle. The entire process is controlled by one button press, which has the advantages of convenience and speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 It is a right view of the telescopic handle in the extended state;

[0020] Figure 2 It is a left view of the telescopic handle in the extended state;

[0021] Figure 3 It is a left view of the retractable handle in the retracted state;

[0022] Figure 4 This is the front view of the retractable handle in the retracted state (without the front part of the outer sleeve);

[0023] Figure 5This is the front view of the retractable handle in the retracted state (excluding the front part of the outer sleeve and the middle sleeve);

[0024] Figure 6 This is the front view of the retractable handle in the retracted state (excluding the front side of the outer sleeve, the middle sleeve and the inner sleeve);

[0025] Figure 7 An exploded view of the lower locking seat and its internal structure;

[0026] Figure 8 An exploded view of the middle locking seat and its internal structure;

[0027] Fig. 9 An exploded view of the upper locking seat and its internal structure;

[0028] Fig.10 It is an exploded view of a handle in the prior art;

[0029] In the figure: 10, outer sleeve; 101, first pin hole; 102, second pin hole; 103, third pin hole; 20, middle sleeve; 201, fourth pin hole; 202, fifth pin hole; 203, sixth pin hole; 30, inner sleeve; 40, push-type unlocking mechanism; 401, handle; 402, push button; 403, transmission rod; 50, lower locking seat; 501, lower extrusion cavity; 502, lower locking cavity; 503, lower locking member; 504, lower locking pin; 505, lower extrusion inclined surface; 506, threaded column; 507, lower extrusion member; 508, lower extrusion part; 509, lower limit boss; 510, lower limit hole; 60, middle locking seat; 601, middle extrusion cavity; 602, middle locking groove; 603, middle limit hole; 604, middle extrusion member; 605, middle limit boss; 606, middle locking member; 607, left locking pin; 608, right locking pin; 609, middle extrusion slope; 70, upper locking seat; 701, upper extrusion cavity; 702, upper locking groove; 703, upper limit hole; 704, upper extrusion member; 705, upper limit boss; 706, upper locking member; 707, upper extrusion slope; 708, upper locking pin. DETAILED DESCRIPTION

[0030] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0031] It should be noted that like reference numerals denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings. Example

[0032] This embodiment mainly describes the title of the one-key linkage disassembly structure of the telescopic handle, which is as follows:

[0033] The telescopic handle has a one-button linkage disassembly structure, such as Figure 1-9As shown, it includes a mounting seat body and a telescopic handle, and the telescopic direction of the telescopic handle is defined as vertical, and the direction perpendicular to the telescopic direction of the telescopic handle is horizontal. The mounting seat body is provided with an insertion groove or an insertion hole, and the side wall of the insertion groove or the insertion hole is provided with a locking groove or a locking hole, and the bottom end of the telescopic handle is inserted into the insertion groove or the insertion hole; the telescopic handle includes a slidably sleeved and telescopic inner sleeve 30, a middle sleeve 20 and an outer sleeve 10, and the lower left side of the outer sleeve 10 is provided with a first pin hole 101 and a second pin hole 102, and the second pin hole 102 is located above the first pin hole 101, and the upper right side of the outer sleeve 10 is provided with a third pin hole 103, and the lower left side of the middle sleeve 20 is provided with a fourth pin hole 201 and a fifth pin hole 202, a sixth pin hole 203 is provided on the upper left side of the middle sleeve 20, a push-type unlocking mechanism 40 is provided in the inner sleeve 30, and the push-type unlocking mechanism 40 has an upper locking pin 708 that pops out automatically and can be pressed back, a middle locking seat 60 is provided at the bottom of the middle sleeve 20, and a middle extrusion member 604 that slides in the vertical direction, a middle locking member 606 that can slide in the horizontal direction, and a middle locking spring that applies a rightward elastic force to the middle locking member 606 are provided in the middle locking seat 60, a group of middle extrusion inclined surfaces 609 that are abutted against each other are provided on the middle extrusion member 604 and the middle locking member 606, and a left locking pin 607 and a right locking pin 608 are provided on the left and right sides of the middle locking member 606, respectively, and the middle extrusion member When 604 is under pressure, the middle locking member 606 is driven to move to the left through the middle extrusion inclined surface 609, wherein the left locking pin 607 cooperates with the first pin hole 101, and the right locking pin 608 cooperates with the third pin hole 103; a lower locking seat 50 is provided at the bottom of the outer sleeve 10, and a lower extrusion member 507 that can slide in the vertical direction and a lower locking member 503 that can slide in the horizontal direction are provided in the lower locking seat 50, and a group of lower extrusion inclined surfaces 505 that are abutted against each other are provided on the lower extrusion member 507 and the lower locking member 503, and a lower locking pin 504 that can extend out of the outer sleeve 10 is provided on the lower locking member 503, and a lower locking spring is provided in the lower locking seat 50 and the lower locking spring exerts a force on the lower locking member 503 The elastic force causes the lower locking pin 504 on the lower locking member 503 to pass through the outer sleeve 10 and extend into the locking groove or locking hole. When the lower extrusion member 507 is compressed, under the action of the lower extrusion slope 505, the lower locking member 503 retracts into the outer sleeve 10, releasing the lock between the telescopic handle and the mounting seat body; wherein the elastic force of the lower locking spring is greater than the elastic force of the middle locking spring; the unlocking and extension process of the telescopic handle has the following states: in the first state, the telescopic handle is fully retracted, the left locking pin 607 is located in the first pin hole 101, the upper locking pin 708 is located in the second pin hole 102, the middle extrusion member 604 and the lower extrusion member 507 are both compressed, and the telescopic handle is unlocked from the mounting seat body;In the second state, the push-type unlocking mechanism 40 is pressed downward, the upper locking pin 708 is disengaged from the second pin hole 102, the inner sleeve 30 is moved upward to switch the upper locking pin 708 to the fourth pin hole 201, the pressure of the middle extrusion member 604 is released, and the middle locking seat 60 is squeezed by the lower extrusion member 507 so that the left locking pin 607 is stuck in the first pin hole 101 by friction, and the telescopic handle is unlocked from the mounting seat body; in the third state, the inner sleeve 30 and the middle sleeve 20 are pressed downward, the left locking pin 607 is separated from the top of the hole wall of the first pin hole 101, the friction disappears, and the left locking pin 607 moves right under the action of the middle locking spring. Disengage from the first pin hole 101, and under the action of the lower locking spring, the lower locking pin 504 passes through the outer sleeve 10 and extends into the locking groove or the locking hole, and the telescopic handle is locked with the mounting seat body; in the fourth state, the middle sleeve 20 and the inner sleeve 30 are pulled until the right locking pin 608 extends into the third pin hole 103 under the action of the middle locking spring, and the telescopic handle is in the first extension state; in the fifth state, the push-type unlocking mechanism 40 is pressed downward to disengage the upper locking pin 708 from the fourth pin hole 201, and the inner sleeve 30 is continued to be pulled until the upper locking pin 708 extends into the sixth pin hole 203, and the telescopic handle is in a fully extended state. This solution provides three locking seats with locking pins on three sleeves and provides a number of pin holes for matching the locking pins. When stretching and contracting, each locking pin is pressed to match the corresponding pin hole to achieve locking after stretching and contraction. After contraction, the lower extrusion member 507 is squeezed to retract the lower locking pin 504 so as to remove the telescopic handle. The whole process is controlled by one button, which is convenient and fast. ;

[0034] like Figure 3 , 6 As shown in Figures 9 and 9, the push-type unlocking mechanism 40 includes a push-type transmission structure arranged at the top of the inner sleeve 30 and an inner locking seat arranged at the bottom of the inner sleeve 30, and the inner locking seat is provided with an upper extrusion member 704 sliding along the extension and retraction direction of the telescopic handle and an upper locking member 706 sliding perpendicular to the extension and retraction direction of the telescopic handle, and the upper extrusion member 704 and the upper locking member 706 are provided with a group of upper extrusion inclined surfaces 707 abutting against each other, and the upper extrusion member 704 drives the upper locking member 706 to slide inwardly through the upper extrusion inclined surfaces 707, the upper locking pin 708 is located on the upper locking member 706, and the upper locking seat 70 is provided with an upper locking spring for pushing the upper locking member 706 outward; the bottom end of the push-type transmission structure is connected to the upper extrusion member 704 for transmitting the pressing force to the upper extrusion member 704 and driving the upper locking member 706 and the upper locking pin 708 to retract.

[0035] Specifically, the push transmission structure includes a handle 401 mounted on the top of the inner sleeve 30, a push button 402 embedded in the handle 401, and a transmission rod 403 arranged in the inner sleeve 30, one end of the transmission rod 403 is abutted against or connected to the push button 402, and the other end of the transmission rod 403 is connected to the middle extrusion piece 604. The transmission rod 403 is provided with a return spring for returning to its original position after being pressed.

[0036] like Figure 3 and Figure 7 As shown, the lower locking seat 50 is inserted at the bottom of the outer sleeve 10 , and the lower locking seat 50 and the outer sleeve 10 are respectively provided with a threaded column 506 and a mounting hole, and the two are locked and fixed by screws extending into the mounting hole and the threaded column 506 .

[0037] like Figure 7 As shown, a horizontally penetrating lower locking cavity 502 and a vertical lower extrusion cavity 501 are provided in the lower locking seat 50, two symmetrical lower locking members 503 are provided in the lower locking cavity 502, and a lower extrusion groove is provided on the top of the lower locking member 503; a lower extrusion member 507 is arranged in the lower extrusion cavity 501, and two lower extrusion parts 508 are provided at the bottom of the lower extrusion member 507, and the two extrusion parts extend into the lower extrusion groove, and the lower extrusion slope 505 is located on the lower extrusion groove and the lower extrusion part 508.

[0038] Specifically, a strip-shaped lower limit hole 510 is opened on the side wall of the lower extrusion cavity 501, and a lower limit boss 509 is provided on the lower extrusion member 507. The lower limit boss 509 extends outward and extends into the limit hole.

[0039] like Figure 8 As shown, the top of the middle locking seat 60 extends into the middle sleeve 20 and a middle groove is provided on the side wall of the extending part. The middle sleeve 20 is provided with a middle flange, and the middle flange is inserted into the middle groove to limit the locking seat; the top of the upper locking seat 70 extends into the inner sleeve 30 and an upper groove is provided on the side wall of the extending part. The middle sleeve 20 is provided with an upper flange, and the upper flange is inserted into the upper groove to limit the locking seat.

[0040] Specifically, a horizontal middle locking groove 602 and a vertical middle extrusion cavity 601 are provided in the middle locking seat 60, a middle locking member 606 is arranged in the middle locking groove 602 and can slide along the middle locking groove 602, a middle extrusion groove is provided on the top of the middle locking member 606, a middle extrusion member 604 is located in the middle extrusion cavity 601 and a middle extrusion portion is provided on the bottom of the middle extrusion member 604, the middle extrusion portion extends into the middle extrusion groove, and a middle extrusion slope 609 is located on the middle extrusion portion and the middle extrusion groove.

[0041] Specifically, a strip-shaped middle limiting hole 603 is formed on the side wall of the middle extrusion cavity 601 , and a middle limiting boss 605 is formed on the middle extrusion member 604 . The middle limiting boss 605 extends outward and extends into the middle limiting hole 603 .

[0042] like Fig. 9As shown, a horizontal upper locking groove 702 and a vertical upper extrusion cavity 701 are provided in the upper locking seat 70, an upper locking member 706 is provided in the upper locking groove 702 and can slide along the upper locking groove 702, an upper extrusion groove is provided on the top of the upper locking member 706, an upper extrusion member 704 is located in the upper extrusion cavity 701 and an upper extrusion portion is provided at the bottom of the upper extrusion member 704, the upper extrusion portion extends into the upper extrusion groove, and an upper extrusion slope 707 is located on the upper extrusion portion and the upper extrusion groove. A strip-shaped upper limit hole 703 is provided at the beginning of the side wall of the upper extrusion cavity 701, an upper limit boss 705 extending outward is provided on the upper extrusion member 704, and the upper limit boss 705 is located in the upper limit hole 703.

[0043] The titles provided by the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the present invention and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified. These improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A one-button linkage disassembly structure of a telescopic handle, comprising a mounting seat and a telescopic handle, wherein the telescopic direction of the telescopic handle is defined as a vertical direction, and the direction perpendicular to the telescopic direction of the telescopic handle is a horizontal direction. An insertion groove or an insertion hole is provided on the mounting seat, and a locking groove or a locking hole is provided on the side wall of the insertion groove or the insertion hole, and the bottom end of the telescopic handle is inserted into the insertion groove or the insertion hole; the telescopic handle comprises an inner sleeve, a middle sleeve and an outer sleeve which are slidably sleeved and telescopic, a first pin hole and a second pin hole are provided on the lower left side of the outer sleeve, the second pin hole is located above the first pin hole, a third pin hole is provided on the upper right side of the outer sleeve, a fourth pin hole and a fifth pin hole are provided on the lower left side of the middle sleeve, a sixth pin hole is provided on the upper left side of the middle sleeve, a push-type unlocking mechanism is provided in the inner sleeve, and the push-type unlocking mechanism has an upper locking pin which is automatically ejected and can be pressed back, characterized in that, A middle locking seat is provided at the bottom of the middle sleeve, and a middle extrusion piece sliding in the vertical direction, a middle locking piece sliding in the horizontal direction, and a middle locking spring applying a rightward elastic force to the middle locking piece are provided in the middle locking seat, and a group of middle extrusion inclined surfaces abutting against each other are provided on the middle extrusion piece and the middle locking piece, and a left locking pin and a right locking pin are provided on the left and right sides of the middle locking piece respectively. When the middle extrusion piece is pressurized, the middle locking piece is driven to move to the left through the middle extrusion inclined surface, wherein the left locking pin cooperates with the first pin hole, and the right locking pin cooperates with the third pin hole; a lower locking seat is provided at the bottom of the outer sleeve, and a lower extrusion piece sliding in the vertical direction is provided in the lower locking seat The lower locking member is provided with a pressing member and a lower locking member that can slide in the horizontal direction. The lower pressing member and the lower locking member are provided with a group of lower pressing inclined surfaces that are close to each other. The lower locking member is provided with a lower locking pin that can extend out of the outer sleeve. A lower locking spring is provided in the lower locking seat and the lower locking spring applies elastic force to the lower locking member so that the lower locking pin on the lower locking member passes through the outer sleeve and extends into the locking groove or locking hole. When the lower pressing member is pressed, under the action of the lower pressing inclined surface, the lower locking member retracts into the outer sleeve tube to release the locking between the telescopic handle and the mounting seat body. The elastic force of the lower locking spring is greater than the elastic force of the middle locking spring. The unlocking and extension of the telescopic handle The process has the following states: in the first state, the telescopic handle is fully retracted, the left locking pin is located in the first pin hole, the upper locking pin is located in the second pin hole, the middle extrusion member and the lower extrusion member are compressed, and the telescopic handle is unlocked from the mounting seat body; in the second state, the push-to-release unlocking mechanism is pressed down, the upper locking pin is disengaged from the second pin hole, the inner sleeve moves up to switch the upper locking pin to the fourth pin hole, the pressure of the middle extrusion member is released, and the middle locking seat is squeezed by the lower extrusion member so that the left locking pin is stuck in the first pin hole due to friction, and the telescopic handle is unlocked from the mounting seat body; in the third state, the inner sleeve and the middle sleeve are pressed down, the left locking pin is released from the second pin hole, and the inner sleeve and the middle sleeve are pressed down. The top of the wall of a pin hole is separated, the friction force disappears, and the left locking pin moves to the right under the action of the middle locking spring and disengages from the first pin hole. Under the action of the lower locking spring, the lower locking pin passes through the outer sleeve and extends into the locking groove or the locking hole, and the telescopic handle is locked with the mounting seat body; in the fourth state, the middle sleeve and the inner sleeve are pulled until the right locking pin extends into the third pin hole under the action of the middle locking spring, and the telescopic handle is in the first extension state; in the fifth state, the push-type unlocking mechanism is pressed down to disengage the upper locking pin from the fourth pin hole, and the inner sleeve is continued to be pulled until the upper locking pin extends into the sixth pin hole, and the telescopic handle is in a fully extended state.

2. The one-button linkage disassembly structure of the telescopic handle according to claim 1, characterized in that: The push-type unlocking mechanism includes a push-type transmission structure arranged at the top of the inner sleeve and an inner locking seat arranged at the bottom of the inner sleeve, wherein an upper extrusion member sliding along the extension and retraction direction of the telescopic handle and an upper locking member sliding perpendicular to the extension and retraction direction of the telescopic handle are arranged in the inner locking seat, a group of upper extrusion inclined surfaces abutting against each other are arranged on the upper extrusion member and the upper locking member, and the upper extrusion member drives the upper locking member to slide inward through the upper extrusion inclined surfaces, the upper locking pin is located on the upper locking member, and an upper locking spring pushing the upper locking member outward is arranged in the upper locking seat; the bottom end of the push-type transmission structure is connected to the upper extrusion member for transmitting the pressing force to the upper extrusion member and driving the upper locking member and the upper locking pin to retract inward.

3. The one-button linkage disassembly structure of the telescopic handle according to claim 2, characterized in that: The pressing transmission structure includes a handle mounted on the top of the inner sleeve, a pressing key embedded in the handle and a transmission rod arranged in the inner sleeve, one end of the transmission rod is against or connected to the pressing key, and the other end of the transmission rod is connected to the middle extrusion piece. The transmission rod is provided with a return spring for returning to its original position after being pressed.

4. The one-button linkage disassembly structure of the telescopic handle according to claim 1, characterized in that: The lower locking seat is inserted at the bottom of the outer sleeve. The lower locking seat and the outer sleeve are respectively provided with threaded columns and mounting holes, and the two are locked and fixed by screws extending into the mounting holes and the threaded columns.

5. The one-button linkage disassembly structure of the telescopic handle according to claim 1, characterized in that: A horizontally penetrating lower locking cavity and a vertical lower extrusion cavity are provided in the lower locking seat, two symmetrical lower locking pieces are provided in the lower locking cavity, and a lower extrusion groove is provided on the top of the lower locking piece; the lower extrusion piece is arranged in the lower extrusion cavity, and two lower extrusion parts are provided at the bottom of the lower extrusion piece, the two extrusion parts extend into the lower extrusion groove, and the lower extrusion inclined surface is located on the lower extrusion groove and the lower extrusion part.

6. The one-key linkage disassembly structure of the telescopic handle according to claim 5, characterized in that: A strip-shaped lower limit hole is opened on the side wall of the lower extrusion cavity, and a lower limit boss is arranged on the lower extrusion piece. The lower limit boss extends outward and extends into the limit hole.

7. The one-button linkage disassembly structure of the telescopic handle according to claim 1, characterized in that: The top of the middle locking seat extends into the middle sleeve and a middle groove is provided on the side wall of the extending part. The middle sleeve is provided with a middle flange, which is inserted into the middle groove to limit the locking seat; the top of the upper locking seat extends into the inner sleeve and an upper groove is provided on the side wall of the extending part. The middle sleeve is provided with an upper flange, which is inserted into the upper groove to limit the locking seat.

8. The one-button linkage disassembly structure of the telescopic handle according to claim 1, characterized in that: A horizontal middle locking groove and a vertical middle extrusion cavity are provided in the middle locking seat. The middle locking piece is arranged in the middle locking groove and can slide along the middle locking groove. A middle extrusion groove is provided on the top of the middle locking piece. The middle extrusion piece is located in the middle extrusion cavity and a middle extrusion part is provided at the bottom of the middle extrusion piece. The middle extrusion part extends into the middle extrusion groove. The middle extrusion inclined surface is located on the middle extrusion part and the middle extrusion groove.

9. The one-key linkage disassembly structure of the telescopic handle according to claim 8, characterized in that: A strip-shaped middle limiting hole is opened on the side wall of the middle extrusion cavity, and a middle limiting boss is arranged on the middle extrusion piece. The middle limiting boss extends outward and extends into the middle limiting hole.

10. The one-button linkage disassembly structure of the telescopic handle according to claim 1, characterized in that: A horizontal upper locking groove and a vertical upper extrusion cavity are provided in the upper locking seat. The upper locking piece is arranged in the upper locking groove and can slide along the upper locking groove. An upper extrusion groove is provided on the top of the upper locking piece. The upper extrusion piece is located in the upper extrusion cavity and an upper extrusion portion is provided on the bottom of the upper extrusion piece. The upper extrusion portion extends into the upper extrusion groove, and the upper extrusion slope is located on the upper extrusion portion and the upper extrusion groove.

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