Storage device, telescopic pull rod and handle assembly of telescopic pull rod

Abstract

The utility model discloses a storage device, a telescopic pull rod and a handle component thereof, the handle component comprises a button, a pressure spring, a handle and an unlocking unit, the handle is provided with a storage cavity, a button hole and a mounting hole, the button hole and the mounting hole are respectively communicated with the storage cavity at the middle part and the end part of the handle, and the button hole is communicated with the mounting hole. The button is installed in the button hole in a pressing mode, the two opposite ends of the compressed spring abut against the handle and the button respectively, and the unlocking unit is contained in the containing cavity and comprises two inner side unlocking rods and two outer side unlocking rods. The middle parts of the inner unlocking rods are rotatably mounted on the handle in a manner that the two inner unlocking rods are symmetrical, and the middle parts of the outer unlocking rods are rotatably mounted on the handle in a manner that the two outer unlocking rods are symmetrical; the inner end and the outer end of the inner side unlocking rod extend to the position below the button and the position below the inner end of the outer side unlocking rod respectively, and the outer end of the outer side unlocking rod extends to the position above the mounting hole of the handle.

Description

TECHNICAL FIELD

[0001] The utility model relates to a storage device, especially a storage device, a telescopic pull rod and a handle assembly thereof. BACKGROUND

[0002] Movable storage devices, such as suitcases and trolleys, need to be equipped with a telescopic pull rod for facilitating users to pull the storage device. A handle structure of a pull rod box and a pull rod thereof is disclosed in a Chinese utility model patent with the authorization announcement number CN217743425U. The handle structure includes a housing, a drive button, a connecting rod assembly, and an unlocking lever. An installation cavity is formed in the housing. The housing is provided with a button hole communicating with the installation cavity. An elastic return member is also provided in the installation cavity. The drive button is movably arranged in the button hole and abuts against the elastic return member. The connecting rod assembly includes at least two connecting rods and two transmission rods arranged in the installation cavity. The two connecting rods are hingedly connected to the opposite sides of the drive button. One transmission rod is hingedly connected to one end of one connecting rod away from the drive button. The end of the transmission rod away from the connecting rod slidably abuts against the end of the unlocking lever and drives the unlocking lever to move when the drive button is pressed towards the installation cavity. The movement direction of the unlocking lever is the same as that of the drive button. The handle structure hingedly connects the drive button, the connecting rods, and the transmission rods. By pressing the drive button, the transmission rod pushes the unlocking lever to move towards the direction in which the drive button is pressed, so that the pull rod handle can be pulled. Since the two connecting rods of the handle structure are hingedly connected to the opposite sides of the drive button, and the transmission rod is hingedly connected to one end of the connecting rod away from the drive button, and the end of the transmission rod away from the connecting rod slidably abuts against the end of the unlocking lever, the handle structure of the prior art has many defects. First, when the drive button is subjected to unilateral force, it will tilt. At this time, only the connecting rod corresponding to the force-receiving side can exhibit the desired rotating effect, and the transmission rod on that side can exhibit the desired sliding effect. The connecting rod corresponding to the non-force-receiving side cannot exhibit the desired rotating effect, and the transmission rod on that side cannot exhibit the desired sliding effect, ultimately resulting in the inability to unlock, i.e., the pull rod handle cannot be pulled. Second, in order to ensure smooth sliding of the transmission rod, the handle structure of the prior art requires filling lubricating oil in the installation cavity of the housing. In actual use, if oil leakage or thickening, solidification, or other situations of the lubricating oil occur, the transmission rod will inevitably fail to slide smoothly, or even be "stuck". SUMMARY

[0003] The utility model discloses a purpose lies in providing a kind of storage device, telescopic pull rod and its handle assembly, wherein the button of handle assembly can be designed to have smaller size, when the button is pressed, avoid the unilateral force of the button appears.

[0004] The utility model discloses a purpose lies in providing a kind of storage device, telescopic pull rod and its handle assembly, wherein the middle part of the inner unlocking rod of the unlocking unit of handle assembly and the middle part of the outer unlocking rod are rotatably installed to handle, relative to the handle structure of " sliding " scheme of prior art, the " lever " scheme is used in the handle assembly of the utility model, i.e. when the button is pressed, the inner unlocking rod and the outer unlocking rod cooperate with each other, so that the outer end of the outer unlocking rod can be moved downward, by such mode, the handle assembly of the utility model will not appear " jamming " condition, simultaneously, it is not required to fill lubricating oil in the accommodation cavity of handle, therefore, the reliability of the handle assembly of the utility model is higher, and cost is lower, and sealing problem does not need to be considered.

[0005] The utility model discloses a purpose lies in providing a kind of storage device, telescopic pull rod and its handle assembly, wherein the inner end of two inner unlocking rods of the unlocking unit has overlapping portion in height direction, by such mode, when the button is pressed, the outer end of two outer unlocking rods can be moved downward synchronously and with same amplitude, to ensure that the unlocking unit can unlock two lock units.

[0006] According to an aspect of the utility model, the utility model provides a handle assembly, which comprises:

[0007] A button;

[0008] A compression spring;

[0009] A handle, wherein the handle has an accommodation cavity, a button hole and two mounting holes, the button hole is communicated with the accommodation cavity in the middle part of the handle, and the mounting holes are communicated with the accommodation cavity in the end part of the handle, wherein the button is pressingly mounted in the button hole of the handle, the compression spring is located in the accommodation cavity of the handle, and the opposite ends of the compression spring are respectively abutted against the handle and the button; and

[0010] An unlocking unit, wherein the unlocking unit is accommodated in the accommodating cavity of the handle, the unlocking unit comprises two inner unlocking rods and two outer unlocking rods, the middle part of the inner unlocking rod is rotatably installed in the handle in a manner that the two inner unlocking rods are symmetrical to each other, the middle part of the outer unlocking rod is rotatably installed in the handle in a manner that the two outer unlocking rods are symmetrical to each other, the inner end and the outer end of the inner unlocking rod extend to the lower side of the button and the lower side of the inner end of the outer unlocking rod respectively, and the outer end of the outer unlocking rod extends to the upper side of the mounting hole of the handle.

[0011] According to an embodiment of the present application, the inner ends of the two inner unlocking rods have overlapping parts in the height direction, and the inner ends of the two inner unlocking rods enclose an avoiding space for avoiding the compression spring.

[0012] According to an embodiment of the present application, the inner unlocking rod comprises an inner rod body, an extension arm, a supporting arm and a leaning arm, the extension arm and the supporting arm integrally extend outward from the opposite sides of the inner end of the inner rod body respectively, and the leaning arm integrally extends outward from the end of the extension arm away from the inner rod body, the leaning arm of one inner unlocking rod leans against the supporting arm of the other inner unlocking rod, so that the inner ends of the two inner unlocking rods have overlapping parts in the height direction, and the extension arm and the leaning arm of one inner unlocking rod and the extension arm and the leaning arm of the other inner unlocking rod enclose the avoiding space.

[0013] According to an embodiment of the present application, the supporting arm and the leaning arm of the inner unlocking rod have a notch respectively, the supporting arm of one inner unlocking rod extends to the notch of the leaning arm of the other inner unlocking rod, and the extension arm of one inner unlocking rod extends to the notch of the supporting arm of the other inner unlocking rod.

[0014] According to an embodiment of the present application, the inner unlocking rod comprises a pair of first rotating shafts, the pair of first rotating shafts integrally extend outward from the opposite sides of the middle part of the inner rod body, the outer unlocking rod comprises an outer rod body and a pair of second rotating shafts, the pair of second rotating shafts integrally extend outward from the opposite sides of the middle part of the outer rod body, wherein the handle has two pairs of first rotating holes and two pairs of second rotating holes, the pair of first rotating shafts of the inner unlocking rod are rotatably installed in the pair of first rotating holes of the handle respectively, so as to rotatably install the middle part of the inner unlocking rod in the handle, and the pair of second rotating shafts of the outer unlocking rod are rotatably installed in the pair of second rotating holes of the handle respectively, so as to rotatably install the middle part of the outer unlocking rod in the handle.

[0015] According to one embodiment of the present utility model, the handle includes a top cover and a bottom shell, the top cover and the bottom shell are mutually installed to form the accommodation cavity, the first rotation hole and the second rotation hole of the handle between the top cover and the bottom shell, the button hole of the handle is formed in the top cover, and the mounting hole of the handle is formed in the bottom shell.

[0016] According to one embodiment of the present utility model, the inside unlocking rod has a first avoiding hole, the outside unlocking rod has a second avoiding hole, the top cover has a plurality of assembly columns, at least one assembly column of the top cover abuts against the bottom shell after passing through the first avoiding hole of the inside unlocking rod, and at least one assembly column of the top cover abuts against the bottom shell after passing through the second avoiding hole of the outside unlocking rod.

[0017] According to one embodiment of the present utility model, the bottom shell has a guide column, the guide column has a guide hole, the button has an insertion assembly column, the insertion assembly column of the button is inserted in the guide hole of the guide column of the bottom shell and can be moved up and down, and the compression spring is sleeved on the insertion assembly column of the button and the guide column of the bottom shell.

[0018] According to one embodiment of the present utility model, the button has a guide column, the guide column has a guide hole, the bottom shell has an insertion assembly column, the insertion assembly column of the bottom shell is inserted in the guide hole of the guide column of the bottom shell and can be moved up and down, and the compression spring is sleeved on the insertion assembly column of the bottom shell and the guide column of the button.

[0019] According to another aspect of the present utility model, the present utility model further provides a handle assembly, which includes:

[0020] a button;

[0021] a compression spring;

[0022] a handle, wherein the handle has an accommodation cavity, a button hole and two mounting holes, the button hole is communicated with the accommodation cavity in the middle of the handle, the mounting holes are communicated with the accommodation cavity in the ends of the handle, the button is pressingly installed in the button hole of the handle, and the compression spring is located in the accommodation cavity of the handle; and

[0023] An unlocking unit, wherein the unlocking unit is accommodated in the accommodating cavity of the handle, the unlocking unit comprises two inner unlocking rods and two outer unlocking rods, the middle part of the inner unlocking rod is rotatably installed in the handle in a manner that the two inner unlocking rods are symmetrical to each other, the middle part of the outer unlocking rod is rotatably installed in the handle in a manner that the two outer unlocking rods are symmetrical to each other, the inner end and the outer end of the inner unlocking rod extend to the lower side of the button and the lower side of the inner end of the outer unlocking rod respectively, and the outer end of the outer unlocking rod extends to the upper side of the mounting hole of the handle, wherein the bottom of the compression spring abuts against the handle, and the top of the compression spring abuts against the inner end of the inner unlocking rod.

[0024] According to an embodiment of the present application, the inner ends of the two inner unlocking rods have overlapping parts in the height direction.

[0025] According to another aspect of the present application, the present application further provides a telescopic pull rod, which comprises:

[0026] A handle assembly, wherein the handle assembly comprises a button, a compression spring, a handle and an unlocking unit, wherein the handle has an accommodating cavity, a button hole and two mounting holes, the button hole is communicated with the accommodating cavity in the middle part of the handle, and the mounting hole is communicated with the accommodating cavity in the end part of the handle, wherein the button is pressably installed in the button hole of the handle, the compression spring is located in the accommodating cavity of the handle, the opposite ends of the compression spring abut against the handle and the button respectively, the unlocking unit is accommodated in the accommodating cavity of the handle, the unlocking unit comprises two inner unlocking rods and two outer unlocking rods, the middle part of the inner unlocking rod is rotatably installed in the handle in a manner that the two inner unlocking rods are symmetrical to each other, the middle part of the outer unlocking rod is rotatably installed in the handle in a manner that the two outer unlocking rods are symmetrical to each other, the inner end and the outer end of the inner unlocking rod extend to the lower side of the button and the lower side of the inner end of the outer unlocking rod respectively, and the outer end of the outer unlocking rod extends to the upper side of the mounting hole of the handle; and

[0027] Two telescopic rod assemblies, wherein the telescopic rod assembly comprises an outer tube, an inner tube, a first locking unit and a transmission rod, wherein the inner tube is movably extended into the tube cavity of the outer tube, the top of the inner tube is installed in the mounting hole of the handle, the first locking unit is installed at the bottom of the inner tube, the first locking unit can lock or release the outer tube, the transmission rod is movably installed in the tube cavity of the inner tube, the bottom of the transmission rod abuts against the first locking unit, the top of the transmission rod extends to the accommodating cavity through the mounting hole of the handle, and the top of the transmission rod abuts against the outer end of the outer unlocking rod.

[0028] According to one embodiment of the present utility model, the inner ends of the two inner unlocking levers have overlapping parts in the height direction.

[0029] According to another aspect of the present utility model, the present utility model further provides a telescopic pull rod, which comprises:

[0030] a handle assembly, wherein the handle assembly comprises a button, a compression spring, a handle and an unlocking unit, wherein the handle has a receiving cavity, a button hole and two mounting holes, the button hole is communicated with the receiving cavity in the middle of the handle, and the mounting holes are communicated with the receiving cavity in the end of the handle, wherein the button is pressingly mounted in the button hole of the handle, the compression spring is located in the receiving cavity of the handle, and the unlocking unit is received in the receiving cavity of the handle, the unlocking unit comprises two inner unlocking levers and two outer unlocking levers, the middle of the inner unlocking lever is rotatably mounted to the handle in a manner that the two inner unlocking levers are symmetrical to each other, the middle of the outer unlocking lever is rotatably mounted to the handle in a manner that the two outer unlocking levers are symmetrical to each other, the inner end and the outer end of the inner unlocking lever extend to below the button and below the inner end of the outer unlocking lever respectively, the outer end of the outer unlocking lever extends to above the mounting hole of the handle, wherein the bottom of the compression spring abuts against the handle, and the top of the compression spring abuts against the inner end of the inner unlocking lever; and

[0031] two telescopic rod assemblies, wherein the telescopic rod assembly comprises an outer tube, an inner tube, a first locking unit and a transmission rod, wherein the inner tube is movably extended into the lumen of the outer tube, the top of the inner tube is mounted in the mounting hole of the handle, the first locking unit is mounted at the bottom of the inner tube, the first locking unit can lock or release the outer tube, the transmission rod is movably mounted in the lumen of the inner tube, the bottom of the transmission rod abuts against the first locking unit, the top of the transmission rod extends to the receiving cavity through the mounting hole of the handle, and the top of the transmission rod abuts against the outer end of the outer unlocking lever.

[0032] According to another aspect of the present utility model, the present utility model further provides a storage device, which comprises a storage box and a telescopic pull rod mounted on the storage box, wherein the telescopic pull rod comprises:

[0033] A handle assembly, wherein the handle assembly comprises a button, a compression spring, a handle, and an unlocking unit, wherein the handle has a receiving cavity, a button hole, and two mounting holes, the button hole is communicated with the receiving cavity in the middle of the handle, and the mounting holes are communicated with the receiving cavity in the end of the handle, wherein the button is pressably mounted in the button hole of the handle, the compression spring is located in the receiving cavity of the handle, and opposite ends of the compression spring are respectively abutted against the handle and the button, and the unlocking unit is received in the receiving cavity of the handle, the unlocking unit comprises two inner unlocking rods and two outer unlocking rods, the middle of the inner unlocking rod is rotatably mounted in the handle in a manner that the two inner unlocking rods are mutually symmetrical, the middle of the outer unlocking rod is rotatably mounted in the handle in a manner that the two outer unlocking rods are mutually symmetrical, the inner end and the outer end of the inner unlocking rod are respectively extended below the button and below the inner end of the outer unlocking rod, and the outer end of the outer unlocking rod is extended above the mounting hole of the handle; and

[0034] Two telescopic rod assemblies, wherein the telescopic rod assembly comprises an outer tube, an inner tube, a first locking unit, and a transmission rod, wherein the inner tube is movably extended into the lumen of the outer tube, the top of the inner tube is mounted in the mounting hole of the handle, the first locking unit is mounted at the bottom of the inner tube, the first locking unit can lock or release the outer tube, the transmission rod is movably mounted in the lumen of the inner tube, the bottom of the transmission rod is abutted against the first locking unit, the top of the transmission rod is extended into the receiving cavity through the mounting hole of the handle, and the top of the transmission rod is abutted against the outer end of the outer unlocking rod.

[0035] According to another aspect of the utility model, the utility model further provides a storage device, which comprises a storage box and a telescopic pull rod mounted on the storage box, wherein the telescopic pull rod comprises:

[0036] A handle assembly, wherein the handle assembly comprises a button, a compression spring, a handle and an unlocking unit, wherein the handle has a receiving cavity, a button hole and two mounting holes, the button hole is communicated with the receiving cavity in the middle of the handle, and the mounting holes are communicated with the receiving cavity in the end of the handle, wherein the button is pressingly mounted in the button hole of the handle, the compression spring is located in the receiving cavity of the handle, and the unlocking unit is received in the receiving cavity of the handle, the unlocking unit comprises two inner unlocking rods and two outer unlocking rods, the middle of the inner unlocking rod is rotatably mounted in the handle in a manner that the two inner unlocking rods are symmetrical to each other, the middle of the outer unlocking rod is rotatably mounted in the handle in a manner that the two outer unlocking rods are symmetrical to each other, the inner end and the outer end of the inner unlocking rod respectively extend to below the button and below the inner end of the outer unlocking rod, and the outer end of the outer unlocking rod extends to above the mounting hole of the handle, wherein the bottom of the compression spring abuts against the handle, and the top of the compression spring abuts against the inner end of the inner unlocking rod; and

[0037] Two telescopic rod assemblies, wherein the telescopic rod assembly comprises an outer tube, an inner tube, a first locking unit and a transmission rod, wherein the inner tube is movably extended into the tube cavity of the outer tube, the top of the inner tube is mounted in the mounting hole of the handle, the first locking unit is mounted at the bottom of the inner tube, the first locking unit can lock or release the outer tube, the transmission rod is movably mounted in the tube cavity of the inner tube, the bottom of the transmission rod abuts against the first locking unit, the top of the transmission rod extends to the receiving cavity through the mounting hole of the handle, and the top of the transmission rod abuts against the outer end of the outer unlocking rod. BRIEF DESCRIPTION OF DRAWINGS

[0038] FIG. 1A is a three-dimensional schematic view of a state of a storage device according to a preferred embodiment of the present utility model.

[0039] FIG. 1B is a three-dimensional schematic view of another state of the storage device according to the above preferred embodiment of the present utility model.

[0040] FIG. 1C is a three-dimensional schematic view of another state of the storage device according to the above preferred embodiment of the present utility model.

[0041] FIG. 2 is a three-dimensional schematic view of a telescopic pull rod of the storage device according to the above preferred embodiment of the present utility model.

[0042] FIG. 3is a partial position enlarged view of

[0043] FIG. 4 is FIG. 3

[0044] FIG. 5 is a further exploded schematic view of the telescopic pull rod of the storage device according to the above preferred embodiment of the present utility model.

[0045] FIG. 6 is another exploded schematic view of the telescopic pull rod of the storage device according to the above preferred embodiment of the present utility model.

[0046] FIG. 7 is FIG. 6

[0047] FIG. 8 is another exploded schematic view of the telescopic pull rod of the storage device according to the above preferred embodiment of the present utility model.

[0048] FIG. 9 is FIG. 8

[0049] FIG. 10 is a sectional schematic view of the telescopic pull rod of the storage device according to the above preferred embodiment of the present utility model.

[0050] FIG. 11A is FIG. 10

[0051] FIG. 11B is FIG. 10

[0052] FIG. 12A is FIG. 10

[0053] FIG. 12B is FIG. 10

[0054] FIG. 13 is a sectional schematic view of a variant example of the telescopic pull rod of the storage device according to the above preferred embodiment of the present utility model.

[0055] FIG. 14 is FIG. 13 DETAILED DESCRIPTION ​​​​​​​​

[0056] Before any embodiments of the present disclosure are described in detail, it is to be understood that the present disclosure is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the following drawings. The present disclosure is capable of other embodiments and of being practiced or being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless specified or limited otherwise, the terms "mounted," "connected," "supported," and "coupled" and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings. Further, "connected" and "coupled" are not restricted to physical or mechanical connections or couplings.

[0057] Also, in the disclosure of the present disclosure, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as limiting the present disclosure; secondly, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, the term "one" cannot be understood as limiting the number.

[0058] Reference will now be made, by way of example, to the accompanying drawings, in which FIGS. 1A-12B A storage device according to a preferred embodiment of the present disclosure will be disclosed and described in the following description, wherein the storage device includes a storage box 10 and a telescopic trolley 20 mounted on the storage box 10, the telescopic trolley 20 has an extended state and a retracted state, the telescopic trolley 20 can be switched between the extended state and the retracted state, when the telescopic trolley 20 is in the extended state, the telescopic trolley 20 has a higher height dimension to allow a user to pull the storage device through the telescopic trolley 20, when the telescopic trolley 20 is in the retracted state, the telescopic trolley 20 has a lower height dimension, at this time the storage device can occupy a smaller space.

[0059] It is worth mentioning that the specific type of the storage box 10 is not limited in the storage device of the present disclosure, for example, in the attached FIGS. 1A-12BIn the specific example of the storage device shown, the storage box 10 is foldable, and has an unfolded state and a folded state, and the storage box 10 can be switched between the unfolded state and the folded state; when the storage box 10 is in the unfolded state, the storage box 10 forms a storage cavity 11 for storing articles; when the storage box 10 is in the folded state, the storage box 10 has a smaller size, and at this time the storage device can occupy a smaller space.

[0060] With reference to the accompanying drawings FIGS. 1A-11B The telescopic pull rod 20 comprises a handle assembly 21 and two telescopic rod assemblies 22, wherein the handle assembly 21 comprises a handle 211, a button 212, a compression spring 213 and an unlocking unit 214, and each telescopic rod assembly 22 comprises an outer tube 221, an inner tube 222, a first lock unit 223 and a transmission rod 224.

[0061] Specifically, the handle 211 has a receiving cavity 2111, a button hole 2112 and two mounting holes 2113, the button hole 2112 is communicated with the receiving cavity 2111 at the middle of the handle 211, and the mounting holes 2113 are communicated with the receiving cavity 2111 at the ends of the handle 211. The button 212 is pressingly mounted in the button hole 2112 of the handle 211, the bottom of the button 212 is located in the receiving cavity 2111 of the handle 211, and the top of the button 212 extends above the handle 211 through the button hole 2112 of the handle 211, so that the button 212 is pressingly mounted in the button hole 2112 of the handle 211, that is, the user can press the button 212 outside the handle 211 to move the button 212 relative to the handle 211. The compression spring 213 is located in the receiving cavity 2111 of the handle 211, and the opposite ends of the compression spring 213 abut against the handle 211 and the button 212 respectively, when the button 212 is pressed, the handle 211 and the button 212 can cooperate to compress the compression spring 213, and when the button 212 is released, the compression spring 213 can push the button 212 upward to reset relative to the handle 211 in the process of restoring the initial state. The unlocking unit 214 is received in the receiving cavity 2111 of the handle 211, wherein the unlocking unit 214 includes two inner unlocking rods 2141 and two outer unlocking rods 2142, the middle parts of the two inner unlocking rods 2141 and the middle parts of the two outer unlocking rods 2142 are rotatably mounted in the handle 211, the two inner unlocking rods 2141 are symmetrical to each other, the two outer unlocking rods 2142 are symmetrical to each other, and the inner ends and the outer ends of the inner unlocking rods 2141 extend below the button 212 and below the inner ends of the outer unlocking rods 2142 respectively, and the outer ends of the outer unlocking rods 2142 extend above the mounting holes 2113 of the handle 211.

[0062] The inner tube 222 movably extends into an outer tube lumen 2211 of the outer tube 221, the top of the inner tube 222 is mounted in the mounting hole 2113 of the handle 211, the first lock unit 223 is mounted at the bottom of the inner tube 222, the transmission rod 224 is movably mounted in an inner tube lumen 2221 of the inner tube 222, the bottom of the transmission rod 224 abuts against the first lock unit 223, the top of the transmission rod 224 extends into the receiving cavity 2111 through the mounting hole 2113 of the handle 211, and the top of the transmission rod 224 abuts against the outer ends of the outer unlocking rods 2142.

[0063] When the button 212 is pressed downward, on the one hand, the button 212 and the handle 211 cooperate to compress the compression spring 213, so that the compression spring 213 is deformed to accumulate elastic potential energy, on the other hand, the button 212 pushes the inner end of the inner unlocking rod 2141 downward, so that the outer end of the inner unlocking rod 2141 moves upward, the outer end of the inner unlocking rod 2141 pushes the inner end of the outer unlocking rod 2142 to move upward, so that the outer end of the outer unlocking rod 2142 moves downward, the outer end of the outer unlocking rod 2142 pushes the transmission rod 224 downward, the transmission rod 224 acts on the first locking unit 223 during the downward movement, so that the first locking unit 223 is switched from a locking state to an unlocking state, the first locking unit 223 releases the outer tube 221, so that the inner tube 222 can move relative to the outer tube 221, so that the telescopic pull rod 20 can be switched from the retracted state to the extended state.

[0064] After the button 212 is released, on the one hand, the compression spring 213 pushes the button 212 during the process of returning to the initial state, so that the button 212 is reset, on the other hand, the first locking unit 224 can be switched from the unlocking state to the locking state, during which the first locking unit 223 pushes the transmission rod 224 to move upward, the transmission rod 224 pushes the outer end of the outer unlocking rod 2142 to move upward, so that the inner end of the outer unlocking rod 2142 moves downward, and the inner end of the outer unlocking rod 2142 pushes the outer end of the inner unlocking rod 2141 to move downward, so that the inner end of the inner unlocking rod 2141 moves upward.

[0065] In the storage device, the middle part of the inner unlocking rod 2141 and the middle part of the outer unlocking rod 2142 are rotatably installed on the handle 211, compared with the handle structure of the prior art using the "sliding" scheme, the handle assembly 21 of the telescopic pull rod 20 of the storage device adopts a "lever" scheme, that is, when the button 212 is pressed, the inner unlocking rod 2141 and the outer unlocking rod 2142 cooperate with each other, so that the outer end of the outer unlocking rod 2142 can move downward, in this way, the handle assembly 21 will not be "stuck", and at the same time, it is not required to fill lubricating oil in the storage cavity 2111 of the handle 211, therefore, the handle assembly 21 has higher reliability and lower cost, and does not need to consider the sealing problem.

[0066] Specifically, referring to the accompanying drawings FIG. 4 , FIG. 6 and FIG. 8The inner unlocking rod 2141 comprises an inner rod body 21411 and a pair of first rotating shafts 21412 integrally extended outward from opposite sides of the middle part of the inner rod body 21411, and the outer unlocking rod 2142 comprises an outer rod body 21421 and a pair of second rotating shafts 21422 integrally extended outward from opposite sides of the middle part of the outer rod body 21421. The handle 211 has two pairs of first rotating holes 2114 and two pairs of second rotating holes 2115, and the pair of first rotating shafts 21412 of the inner unlocking rod 2141 are rotatably installed in the pair of first rotating holes 2114 of the handle 211 to rotatably install the middle part of the inner unlocking rod 2141 in the handle 211, and the pair of second rotating shafts 21422 of the outer unlocking rod 2142 are rotatably installed in the pair of second rotating holes 2115 of the handle 211 to rotatably install the middle part of the outer unlocking rod 2142 in the handle 211.

[0067] Further, the handle 211 comprises a top cover 2116 and a bottom shell 2117, and the top cover 2116 and the bottom shell 2117 are installed with each other to form the accommodation cavity 2111, the first rotating holes 2114 and the second rotating holes 2115 of the handle 211 between the top cover 2116 and the bottom shell 2117, wherein the button hole 2112 of the handle 211 is formed in the middle part of the top cover 2116 to make the button hole 2112 communicate with the accommodation cavity 2111 in the middle part of the handle 211, the mounting hole 2113 of the handle 211 is formed in the end part of the bottom shell 2117 to make the mounting hole 2113 communicate with the accommodation cavity 2111 in the end part of the handle 211, and the first rotating holes 2114 and the second rotating holes 2115 of the handle 211 are both formed between the top cover 2116 and the bottom shell 2117.

[0068] Specifically, along the length direction of the bottom shell 2117, the bottom shell 2117 is provided with four pairs of shaft grooves 21171, and each pair of the first rotating shafts 21412 of the two inner unlocking rods 2141 is arranged in the two pairs of shaft grooves 21171 located in the middle of the bottom shell 2117, and each pair of the second rotating shafts 21422 of the two outer unlocking rods 2142 is arranged in the two pairs of shaft grooves 21171 located at the ends of the bottom shell 2117. After the top cover 2116 is mounted on the bottom shell 2117, the top cover 2116 blocks the notches of the shaft grooves 21171 of the bottom shell 2117, so that the two pairs of shaft grooves 21171 located in the middle of the bottom shell 2117 form the two pairs of first rotating holes 2114 of the handle 211, and so that the two pairs of shaft grooves 21171 located at the ends of the bottom shell 2117 form the two pairs of second rotating holes 2115 of the handle 211. Thus, one pair of the first rotating shafts 21412 of the inner unlocking rod 2141 is rotatably mounted in one pair of the first rotating holes 2114 of the handle 211, and one pair of the second rotating shafts 21422 of the outer unlocking rod 2142 is rotatably mounted in one pair of the second rotating holes 2115 of the handle 211.

[0069] It is worth mentioning that the mounting mode of the top cover 2116 and the bottom shell 2117 is not limited in the storage device of the utility model, for example, in the attached FIGS. 1A-12B In this specific example of the storage device of the utility model shown, the top cover 2116 has a plurality of assembly columns 21161, and after the top cover 2116 is stacked on the bottom shell 2117, the assembly columns 21161 abut against the bottom shell 2117. In this way, after the screw passes through the perforation of the bottom shell 2117, it can extend to the threaded hole of the assembly column 21161 and be screwed to the assembly column 21161. Thus, the top cover 2116 and the bottom shell 2117 are reliably mounted.

[0070] In order to avoid the assembly columns 21161 of the top cover 2116, the inner unlocking rod 2141 has a first avoiding hole 21413, and the outer unlocking rod 2142 has a second avoiding hole 21423. At least one assembly column 21161 of the top cover 2116 abuts against the bottom shell 2117 after passing through the first avoiding hole 21413 of the inner unlocking rod 2141, and at least one assembly column 21161 of the top cover 2116 abuts against the bottom shell 2117 after passing through the second avoiding hole 21423 of the outer unlocking rod 2142. Thus, the assembly columns 21161 of the top cover 2116 do not affect the rotation of the inner unlocking rod 2141 and the outer unlocking rod 2142.

[0071] Further, reference is made to the attachedFIG. 3 、 FIG. 4 、 FIGS. 7-11B , the inner ends of the two inner unlocking levers 2141 have overlapping portions in the height direction, and the inner ends of the two inner unlocking levers 2141 enclose an avoiding space 2140 for avoiding the compression spring 213, in this way, on the one hand, the button 212 can be designed to have a smaller size, so that unilateral stress of the button 212 can be avoided when the button 212 is pressed, on the other hand, when the button 212 is pressed, the inner ends of the two inner unlocking levers 2141 can be pressed downward by the button 212 at the same time, so that the outer ends of the two outer unlocking levers 2142 can be moved downward synchronously and with the same amplitude, so as to ensure that the unlocking unit 214 can unlock the first locking unit 223.

[0072] With reference to the accompanying drawings FIGS. 3-11B , the inner unlocking lever 2141 further comprises an extension arm 21414, a supporting arm 21415 and a leaning arm 21416, the extension arm 21414 and the supporting arm 21415 are integrally extended outward from the opposite sides of the inner end of the inner lever body 21411 respectively, and the leaning arm 21416 is integrally extended outward from the end of the extension arm away from the inner lever body 21411. The leaning arm 21416 of one inner unlocking lever 2141 leans against the supporting arm 21415 of the other inner unlocking lever 2141, so that the inner ends of the two inner unlocking levers 2141 have overlapping portions in the height direction, and the extension arm 21414 and the leaning arm 21416 of one inner unlocking lever 2141 enclose the avoiding space 2140 with the extension arm 21414 and the leaning arm 21416 of the other inner unlocking lever 2141.

[0073] Further, with reference to the accompanying drawings FIGS. 6-9 , the supporting arm 21415 and the leaning arm 21416 of the inner unlocking lever 2141 respectively have a notch 21417, the supporting arm 21415 of one inner unlocking lever 2141 extends to the notch 21417 of the leaning arm 21416 of the other inner unlocking lever 2141, and the extension arm 21414 of one inner unlocking lever 2141 extends to the notch 21417 of the supporting arm 21415 of the other inner unlocking lever 2141, in this way, the top surfaces of the inner ends of the two inner unlocking levers 2141 are flush, when the button 212 is pressed downward, the button 212 can drive the inner ends of the two inner unlocking levers 2141 to move downward synchronously and with the same amplitude, so that the two first locking units 223 can be switched from the locking state to the unlocking state at the same time when the button 212 is pressed.

[0074] Reference is made to the accompanying drawings FIG. 6 、 FIG. 8 、 FIGS. 10-11B The bottom shell 2117 has a guide column 21172 with a guide hole 211721, the button 212 has an insertion column 2121 which is movably inserted into the guide hole 211721 of the guide column 21172 of the bottom shell 2117, and the compression spring 213 is sleeved on the guide column 211722 of the bottom shell 2117 and the insertion column 2121 of the button 212. In this way, on the one hand, the bottom shell 2117 can guide the movement direction of the button 212, and when the button 212 is pressed, the bottom shell 2117 can prevent the button 212 from tilting, ensuring that the button 212 can drive the inner ends of the two inner unlocking rods 2141 to move downward synchronously and with the same amplitude, and on the other hand, the guide column 21172 of the bottom shell 2117 and the insertion column 2121 of the button 212 can prevent the compression spring 213 from tilting or shifting, so that the opposite ends of the compression spring 213 can reliably abut against the handle 211 and the button 212.

[0075] Optionally, in another specific example of the storage device of the present application, the guide column 21172 can be arranged on the button 212, and correspondingly, the insertion column 2121 can be arranged on the bottom shell 2117.

[0076] Reference is made to the accompanying drawings FIG. 10 、 FIG. 12A and FIG. 12BThe first lock unit 223 further comprises a first lock body 2231, a first lock pin 2232, a first lock spring 2233 and a first insertion arm 2234. The first lock body 2231 is mounted on the bottom of the inner tube 222 to mount the first lock unit 223 on the bottom of the inner tube 222. Specifically, the top of the first lock body 2231 is inserted into the inner tube lumen 2221 of the inner tube 222, and the first lock body 2231 can be mounted on the bottom of the inner tube 222 based on the friction generated between the first lock body 2231 and the inner wall of the inner tube 222. The first lock body 2231 has a first longitudinal hole 22311 extending from the top surface to the bottom surface of the first lock body 2231 and a first transverse hole 22312 extending from the bottom of the first longitudinal hole 22311 to the side surface of the first lock body 2231. The first lock pin 2232 has opposite first locking end 22321 and first driven end 22322, and the first insertion hole 22323 is provided in the first driven end 22322 of the first lock pin 2232. One of the four surfaces of the first lock pin 2232 for defining the first insertion hole 22323, which is away from the first locking end 22321, is a slope, which is defined as a first driven slope 22324. The first lock pin 2232 is movably mounted in the first transverse hole 22312 of the first lock body 2231. The first lock spring 2233 is arranged in the first transverse hole 22312 of the first lock body 2231, and the opposite ends of the first lock spring 2233 abut against the first lock body 2231 and the first lock pin 2232, respectively. The bottom of the first insertion arm 2234 has a first driving slope 22341, and the bottom of the first insertion arm 2234 extends to the first insertion hole 22323 of the first lock pin 2232 through the first longitudinal hole 22311 of the first lock body 2231. The first driving slope 22341 of the first insertion arm 2234 and the first driven slope 22324 of the first lock pin 2232 abut against each other, and the top of the first insertion arm 2234 abuts against the transmission rod 224.The bottom of the outer tube 221 has an outer tube locking hole 2212 which is in communication with the outer tube lumen 2211, wherein the first locking end 22321 of the first locking pin 2232 can be extended into and withdrawn from the outer tube locking hole 2212 of the outer tube 221, when the first locking end 22321 of the first locking pin 2232 is extended into the outer tube locking hole 2212 of the outer tube 221, the first locking unit 223 is in the locked state, at this time the first locking unit 223 locks the outer tube 221, when the first locking end 22321 of the first locking pin 2232 is withdrawn from the outer tube locking hole 2212 of the outer tube 221, the first locking unit 223 is in the unlocked state, at this time the first locking unit 223 releases the outer tube 221.

[0077] The telescopic rod assembly 22 further comprises a sleeve 225 and a second locking unit 226, the outer tube 221 is movably extended to a sleeve lumen 2251 of the sleeve 225, the second locking unit 226 is installed at the bottom of the outer tube 221, and the second locking unit 226 can abut against the first locking unit 223, the second locking unit 226 can lock or release the sleeve 225. The same as the first locking unit 223, the second locking unit 226 also has the locked state and the unlocked state, and the second locking unit 226 can be switched between the locked state and the unlocked state, when the second locking unit 226 is in the unlocked state, the outer tube 221 can move relative to the sleeve 225, when the second locking unit 226 is in the locked state, the outer tube 221 is prevented from moving relative to the sleeve 225.

[0078] Continuing to refer to the drawings FIG. 10 , FIG. 12A and FIG. 12BThe second locking unit 226 further comprises a second lock body 2261, a second lock pin 2262, a second lock spring 2263 and a second insertion arm 2264. The second lock body 2261 is mounted on the bottom of the outer tube 221 to mount the second locking unit 226 on the bottom of the outer tube 221. Specifically, the top of the second lock body 2261 is inserted into the outer tube lumen 2211 of the outer tube 221, and the second lock body 2261 can be mounted on the bottom of the outer tube 221 based on the friction generated between the second lock body 2261 and the inner wall of the outer tube 221. The second lock body 2261 has a second longitudinal hole 22611 extending from the top surface to the bottom surface of the second lock body 2261 and a second transverse hole 22612 extending from the bottom of the second longitudinal hole 22611 to the side surface of the second lock body 2261. The second lock pin 2262 has an opposite second locking end 22621 and a second driven end 22622, and the second lock pin 2262 is provided with an upwardly open second insertion hole 22623 at the second driven end 22622. One of the four surfaces of the second lock pin 2262 for defining the second insertion hole 22623, which is away from the second locking end 22621, is a slope, which is defined as a second driven slope 22624. The second lock pin 2262 is movably mounted in the second transverse hole 22612 of the second lock body 2261, wherein the second lock spring 2263 is arranged in the second transverse hole 22612 of the second lock body 2261, and the opposite ends of the second lock spring 2263 abut against the second lock body 2261 and the second lock pin 2262, respectively. The bottom of the second insertion arm 2264 has a second driving slope 22641, and the bottom of the second insertion arm 2264 extends to the second insertion hole 22623 of the second lock pin 2262 through the second longitudinal hole 22611 of the second lock body 2261. The second driving slope 22641 of the second insertion arm 2264 and the second driven slope 22624 of the second lock pin 2262 abut against each other, and the top of the second insertion arm 2264 abuts against the first lock body 2231.The bottom of the sleeve 225 has a sleeve lock hole 2252 which is in communication with the sleeve lumen 2251, wherein the second locking end 22621 of the second lock pin 2262 can be extended into and withdrawn from the sleeve lock hole 2252 of the sleeve 225, when the second locking end 22621 of the second lock pin 2262 is extended into the sleeve lock hole 2252 of the sleeve 225, the second lock unit 226 is in the locked state, at this time the second lock unit 226 locks the sleeve 225, when the second locking end 22621 of the second lock pin 2262 is withdrawn from the sleeve lock hole 2252 of the sleeve 225, the second lock unit 226 is in the unlocked state, at this time the second lock unit 226 releases the sleeve.

[0079] When the telescopic pull rod 20 is in the contracted state, the first lock unit 223 is in the locked state, at this time the first lock spring 2233 makes the first locking end 22321 of the first lock pin 2232 extend into the outer tube lock hole 2212 of the outer tube 221, for preventing the inner tube 222 from moving relative to the outer tube 221, the second lock unit 226 is in the unlocked state, at this time the second locking end 22621 of the second lock pin 2262 is blocked by the inner wall of the sleeve 225, the second lock pin 2262 and the second lock body 2261 cooperatively compress the second lock spring 2263, so that the second lock spring 2263 accumulates elastic potential energy due to compression.

[0080] When the button 212 is pressed down, on one hand, the button 212 and the handle 211 compress the compression spring 213 cooperatively, so that the compression spring 213 deforms to accumulate elastic potential energy; on the other hand, the button 212 pushes the inner end of the inner unlocking rod 2141 down, the inner unlocking rod 2141 and the outer unlocking rod 2142 cooperate with each other, so that the outer end of the outer unlocking rod 2142 moves down, the outer end of the outer unlocking rod 2142 pushes the transmission rod 224 to move down in the process of moving down, the transmission rod 224 pushes the first insertion arm 2234 to move down in the process of moving down, the first driving slope 22341 of the first insertion arm 2234 and the first driven slope 22324 of the first lock pin 2232 cooperate with each other, so that the first lock pin 2232 moves in the first transverse hole 22312 of the first lock body 2231 to exit the outer pipe lock hole 2212 at the bottom of the outer pipe 221, and the first lock pin 2232 and the first lock body 2231 compress the first lock spring 2233, so that the first lock spring 2233 deforms to accumulate elastic potential energy, at this time the first lock unit 223 switches from the locking state to the unlocking state. After the inner pipe 222 is moved relative to the outer pipe 221, the button 212 can be released, the compression spring 213 pushes the button 212 in the process of returning to the initial state, so that the button 212 resets, after the inner pipe 222 moves to the position that the first locking end 22321 of the first lock pin 2232 of the first lock unit 223 aligns with the outer pipe lock hole 2212 at the top of the outer pipe 221, the first lock spring 2233 pushes the first lock pin 2232 to move in the first transverse hole 22312 of the first lock body 2231 to extend into the outer pipe lock hole 2212 at the top of the outer pipe 221, the first lock unit 223 switches from the unlocking state to the locking state to prevent the inner pipe 222 from moving relative to the outer pipe 221. After the outer pipe 221 is moved relative to the sleeve 225, there is a gap between the first lock unit 223 and the second insertion arm 2264 of the second lock unit 226, after the outer pipe 221 moves to the position that the second locking end 22621 of the second lock pin 2262 of the second lock unit 226 aligns with the sleeve lock hole 2252 of the sleeve 225, the second lock spring 2263 pushes the second lock pin 2262 to move in the second transverse hole 22612 of the second lock body 2261 to extend into the sleeve lock hole 2252 of the sleeve 225, the second lock unit 226 switches from the unlocking state to the locking state to prevent the outer pipe 221 from moving relative to the sleeve 225.By the above process, the telescopic pull rod 20 is switched from the contracted state to the extended state. The process of switching the telescopic pull rod 20 from the extended state to the contracted state is the same as the process of switching the telescopic pull rod 20 from the contracted state to the extended state, which will not be described again.

[0081] The FIG. 13 And FIG. 14 A variant of the storage device is shown, which is different from the storage device shown in the accompanying FIGS. 1A-12B The storage device is different from the storage device shown in the accompanying FIG. 13 And FIG. 14 In this specific example of the storage device shown, the bottom of the compression spring 213 abuts against the handle 211, and the top of the compression spring 213 abuts against the inner end of the inner unlocking rod 2141. When the button 212 is pressed downward, the button 212 pushes the inner end of the inner unlocking rod 2141 downward, so that the outer end of the inner unlocking rod 2141 moves upward and the outer end of the outer unlocking rod 2142 moves downward, and the inner unlocking rod 2141 and the handle 211 cooperate to compress the compression spring 213, so that the compression spring 213 deforms to accumulate elastic potential energy. After the button 212 is released, the compression spring 213 pushes the inner end of the inner unlocking rod 2141 to move upward in the process of returning to the initial state, and then the button 212 is reset.

[0082] It should be understood by those skilled in the art that the above description and the embodiments of the utility model shown in the accompanying drawings are only examples and do not limit the utility model. The purpose of the utility model has been fully and effectively achieved. The function and structural principle of the utility model have been demonstrated and described in the embodiments, and the implementation of the utility model can be any deformation or modification without departing from the principle.

Claims

1. Handle assembly, characterized in that The handle assembly comprises: a button; a compression spring; a handle, wherein the handle has a receiving cavity, a button hole and two mounting holes, the button hole is communicated with the receiving cavity in the middle of the handle, the mounting holes are communicated with the receiving cavity in the end of the handle, the button is pressingly mounted in the button hole of the handle, the compression spring is located in the receiving cavity of the handle, and the opposite ends of the compression spring abut against the handle and the button respectively; and an unlocking unit, wherein the unlocking unit is received in the receiving cavity of the handle, the unlocking unit comprises two inner unlocking levers and two outer unlocking levers, the middle of the inner unlocking levers is rotatably mounted in the handle in a manner that the two inner unlocking levers are mutually symmetrical, the middle of the outer unlocking levers is rotatably mounted in the handle in a manner that the two outer unlocking levers are mutually symmetrical, the inner ends and the outer ends of the inner unlocking levers extend to below the button and below the inner ends of the outer unlocking levers respectively, and the outer ends of the outer unlocking levers extend to above the mounting holes of the handle.

2. The handle assembly according to claim 1, wherein the inner ends of the two inner unlocking levers have overlapping portions in the height direction, and the inner ends of the two inner unlocking levers enclose an avoiding space for avoiding the compression spring.

3. The handle assembly according to claim 2, wherein the inner unlocking lever comprises an inner lever body, an extending arm, a supporting arm and a leaning arm, the extending arm and the supporting arm integrally extend outward from the opposite sides of the inner end of the inner lever body respectively, and the leaning arm integrally extends outward from the end of the extending arm which is away from the inner lever body, wherein the leaning arm of one of the inner unlocking levers leans against the supporting arm of the other inner unlocking lever, so that the inner ends of the two inner unlocking levers have overlapping portions in the height direction, and the extending arm and the leaning arm of one of the inner unlocking levers and the extending arm and the leaning arm of the other inner unlocking lever enclose the avoiding space.

4. The handle assembly according to claim 3, wherein the supporting arm and the leaning arm of the inner unlocking lever have a notch respectively, the supporting arm of one of the inner unlocking levers extends to the notch of the leaning arm of the other inner unlocking lever, and the extending arm of one of the inner unlocking levers extends to the notch of the supporting arm of the other inner unlocking lever.

5. The handle assembly of claim 4, wherein the inner unlocking lever comprises a pair of first pivots integrally extending outward from opposite sides of a middle portion of the inner lever body, the outer unlocking lever comprises an outer lever body and a pair of second pivots integrally extending outward from opposite sides of a middle portion of the outer lever body, wherein the handle has two pairs of first pivot holes and two pairs of second pivot holes, the pair of first pivots of the inner unlocking lever are rotatably mounted in the pair of first pivot holes of the handle to rotatably mount the middle portion of the inner unlocking lever to the handle, the pair of second pivots of the outer unlocking lever are rotatably mounted in the pair of second pivot holes of the handle to rotatably mount the middle portion of the outer unlocking lever to the handle.

6. The handle assembly of claim 5, wherein the handle comprises a top cover and a bottom shell, the top cover and the bottom shell are mounted to each other to form the receiving cavity, the first pivot holes and the second pivot holes of the handle between the top cover and the bottom shell, the button hole of the handle is formed in the top cover, the mounting holes of the handle are formed in the bottom shell.

7. The handle assembly of claim 6, wherein the inner unlocking lever has a first avoiding hole, the outer unlocking lever has a second avoiding hole, the top cover has a plurality of assembling posts, at least one of the assembling posts of the top cover abuts against the bottom shell after passing through the first avoiding hole of the inner unlocking lever, at least one of the assembling posts of the top cover abuts against the bottom shell after passing through the second avoiding hole of the outer unlocking lever.

8. The handle assembly of claim 6, wherein the bottom shell has a guide post with a guide hole, the button has an inserting post, the inserting post of the button is up and down movably inserted into the guide hole of the guide post of the bottom shell, the compression spring is sleeved on the guide post of the bottom shell and the inserting post of the button.

9. The handle assembly of claim 6, wherein the button has a guide post with a guide hole, the bottom shell has an inserting post, the inserting post of the bottom shell is up and down movably inserted into the guide hole of the guide post of the bottom shell, the compression spring is sleeved on the guide post of the bottom shell and the inserting post of the button.

10. Handle assembly, characterized in that comprising: a button; a compression spring; a handle, wherein the handle has a receiving cavity, a button hole and two mounting holes, the button hole is communicated with the receiving cavity at a middle portion of the handle, the mounting holes are communicated with the receiving cavity at end portions of the handle, wherein the button is pressingly mounted in the button hole of the handle, wherein the compression spring is located in the receiving cavity of the handle; and a unlocking unit, wherein the unlocking unit is housed in the housing cavity of the handle, the unlocking unit comprises two inner unlocking levers and two outer unlocking levers, the middle part of the inner unlocking levers is rotatably installed in the handle in a manner that the two inner unlocking levers are symmetrical to each other, the middle part of the outer unlocking levers is rotatably installed in the handle in a manner that the two outer unlocking levers are symmetrical to each other, the inner end and the outer end of the inner unlocking levers respectively extend to below the button and below the inner end of the outer unlocking levers, the outer end of the outer unlocking levers extends to above the mounting hole of the handle, wherein the bottom of the compression spring abuts against the handle, and the top of the compression spring abuts against the inner end of the inner unlocking levers.

11. The handle assembly according to claim 10, wherein the inner ends of the two inner unlocking levers have overlapping parts in the height direction.

12. A telescopic pull handle, characterized in that comprising: the handle assembly according to any one of claims 1 to 9; and two telescopic rod assemblies, wherein the telescopic rod assemblies comprise: an outer tube; an inner tube, wherein the inner tube is movably extended into the lumen of the outer tube, and the top of the inner tube is installed in the mounting hole of the handle; a first locking unit, wherein the first locking unit is installed at the bottom of the inner tube, and the first locking unit can lock or release the outer tube; and a transmission rod, wherein the transmission rod is movably installed in the lumen of the inner tube, the bottom of the transmission rod abuts against the first locking unit, the top of the transmission rod extends to the housing cavity through the mounting hole of the handle, and the top of the transmission rod abuts against the outer end of the outer unlocking levers.

13. The telescopic pull rod according to claim 12, wherein the telescopic rod assembly comprises a sleeve and a second locking unit, the outer tube is movably extended into the lumen of the sleeve, the second locking unit is installed at the bottom of the outer tube and can abut against the first locking unit, and the second locking unit can lock or release the sleeve.

14. A telescopic pull handle, characterized in that comprising: the handle assembly according to claim 10 or 11; and two telescopic rod assemblies, wherein the telescopic rod assemblies comprise: an outer tube; an inner tube, wherein the inner tube is movably extended into the lumen of the outer tube, and the top of the inner tube is installed in the mounting hole of the handle; a first locking unit, wherein the first locking unit is installed at the bottom of the inner tube, and the first locking unit can lock or release the outer tube; and a transmission rod, wherein the transmission rod is movably installed in the lumen of the inner tube, the bottom of the transmission rod abuts against the first locking unit, the top of the transmission rod extends to the housing cavity through the mounting hole of the handle, and the top of the transmission rod abuts against the outer end of the outer unlocking levers.

15. The telescopic pull handle according to claim 14, wherein said telescopic rod assembly comprises a sleeve and a second lock unit, said outer tube is movably extended into a lumen of said sleeve, said second lock unit is mounted at a bottom of said outer tube and is capable of abutting against said first lock unit, said second lock unit is capable of locking or releasing said sleeve.

16. A storage device, characterized by comprising: a housing case; and the telescopic pull handle according to claim 13, wherein said sleeve is mounted on said housing case. comprising:

17. A storage device, characterized by a housing case; and the telescopic pull handle according to claim 15, wherein said sleeve is mounted on said housing case. ​ ​

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