External draw bar and draw-bar box

Abstract

The utility model discloses an external draw bar and a draw-bar box, the external draw bar comprises a draw bar body and a shell, the draw bar body is in sliding connection with the shell, the shell is provided with a first side and a second side which are oppositely distributed, and the shell is used for being fixedly connected with a box body located on the second side of the shell, so that the external draw bar is connected to the box body; the external pull rod can drive the box body to move; the first limiting structure is arranged on the first side of the shell and used for being matched with the box body located on the first side of the shell in a limiting mode, and therefore under the condition that a plurality of box bodies connected with the external pull rods need to be stacked, the shell of each external pull rod can be sequentially matched with the box body located on the first side of the shell in a limiting mode through the first limiting structure. Therefore, a plurality of box bodies connected with the external pull rods can be stably stacked, and the stacking effect after the box bodies are connected with the external pull rods is improved.

Description

Technical Field

[0001] The present application relates to the technical field of luggage accessories, and more specifically, to an external pull rod and a pull rod case. Background Art

[0002] Currently, in order to ensure the flatness of the interior of the box, an external tie rod is usually connected to the outside of the box. After the existing external tie rod is connected to the box, the stacking effect of multiple boxes connected with the external tie rod is poor.

[0003] In addition, the existing external pull rod has poor fit with the box body, which causes the external pull rod and the box body to shake easily.

[0004] In summary, how to improve the stacking effect after the boxes are connected to the external pull rods is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the present application is to provide an external pull rod and a pull rod box to improve the stacking effect after the box body is connected to the external pull rod.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] An external pull rod comprises: a pull rod body and an outer shell; wherein the pull rod body is slidably connected to the outer shell; the outer shell has a first side and a second side that are relatively distributed, and the outer shell is used to be fixedly connected to a box body located on the second side of the outer shell; the first side of the outer shell is provided with a first limiting structure, and the first limiting structure is used to cooperate with the box body located on the first side of the outer shell in a limiting manner.

[0008] In some embodiments, a second limiting structure is provided on the second side of the housing, and the second limiting structure is used to cooperate with the box located on the second side of the housing in a limiting manner.

[0009] In some embodiments, in the first direction, the second limiting structure is used to limit the cooperation with the box located on the second side of the shell; and / or, in the second direction, the second limiting structure is used to limit the cooperation with the box located on the second side of the shell; wherein, the first side and the second side are distributed along a third direction, and there is an angle between each of the first direction, the second direction and the third direction.

[0010] In some embodiments, the second limiting structure is a groove, and the box body is provided with a box body protrusion that cooperates with the groove in a limiting manner.

[0011] In some embodiments, the shell includes a base plate and a frame located at the edge of the base plate; wherein the groove includes a first groove and a second groove; the first groove is arranged on the frame; the shell is provided with a positioning plate distributed along a first direction, the first direction is the sliding direction of the pull rod body, and the second groove is arranged on the positioning plate.

[0012] In some embodiments, a baffle is provided on the positioning plate, and the pull rod body is located between the baffle and the bottom plate.

[0013] In some embodiments, in a first direction, the first limiting structure is used to cooperate with a box located on the first side of the shell in a limiting manner; and / or, in a second direction, the first limiting structure is used to cooperate with a box located on the first side of the shell in a limiting manner; wherein, the first side and the second side are distributed along a third direction, and there is an angle between each of the first direction, the second direction and the third direction.

[0014] In some embodiments, the first limiting structure is a protrusion, and the box body is provided with a box body groove that cooperates with the protrusion to limit the position.

[0015] In some embodiments, the protrusion is a strip-shaped protrusion and has a bent structure.

[0016] In some embodiments, the housing is provided with a sliding groove for the slider to slide along the second direction. There are two sliders in the second direction, and the two sliders distributed along the second direction are connected by a spring; a positioning groove is provided on the pull rod body, and the slider can be inserted into the positioning groove and positioned with the positioning groove.

[0017] In some embodiments, the slider is provided with a spring slot, and the spring is fixedly connected to the spring slot; and / or, the slider is provided with a handle.

[0018] In some embodiments, a limiting member is further included, wherein the first end of the pull rod body has a handle, the second end of the pull rod body is away from the first end of the pull rod body, and the limiting member is fixedly connected to the second end of the pull rod body by a threaded fastener; wherein the outer shell has a third limiting structure, and the third limiting structure can cooperate with the limiting member to limit the sliding direction of the pull rod body.

[0019] A trolley case comprises a case body and the external trolley as described above.

[0020] The external pull rod provided in the present application includes a pull rod body and an outer shell. The pull rod body is slidably connected to the outer shell. The outer shell has a first side and a second side that are relatively distributed. The outer shell is used to be fixedly connected to the box body located on the second side of the outer shell, so as to connect the external pull rod to the box body so that the external pull rod can drive the box body to move; the first side of the outer shell is provided with a first limiting structure, and the first limiting structure is used to cooperate with the box body located on the first side of the outer shell. In this way, when multiple boxes connected with external pull rods need to be stacked, the outer shell of each external pull rod can be mutually limited with the box body located on the first side of the outer shell through the first limiting structure in turn, so that multiple boxes connected with external pull rods can be stably stacked, thereby improving the stacking effect after the box body is connected to the external pull rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0022] Figure 1 A schematic diagram of a first side of an external pull rod provided in an embodiment of the present application;

[0023] Figure 2 for Figure 1 A schematic diagram of the exploded parts of the first side of the external tie rod is shown;

[0024] Figure 3 A schematic diagram of the second side of the external pull rod provided in an embodiment of the present application;

[0025] Figure 4 for Figure 3 A schematic diagram of the disassembled parts of the second side of the external tie rod is shown;

[0026] Figure 5 A schematic diagram of a slider of an external pull rod provided in an embodiment of the present application;

[0027] Figure 6 for Figure 5 Schematic diagram of the slider and spring shown;

[0028] Figure 7 A schematic diagram of a pull rod body in an external pull rod provided in an embodiment of the present application;

[0029] Figure 8 Schematic diagram of the cooperation between the pull rod body and the slider in the external pull rod provided in the embodiment of the present application;

[0030] Figure 9 A schematic diagram of a housing in an external pull rod provided in an embodiment of the present application;

[0031] Figure 10 for Figure 9 a side view of the housing shown;

[0032] Figure 11 A schematic diagram of a position limiting member in an external pull rod provided in an embodiment of the present application;

[0033] Figure 12 A schematic diagram of step 1 of installing an external pull rod according to an embodiment of the present application;

[0034] Figure 13 A schematic diagram of step 2 of installing the external pull rod provided in an embodiment of the present application;

[0035] Figure 14 A schematic diagram of step three of installing an external pull rod according to an embodiment of the present application;

[0036] Figure 15 A schematic diagram of the cooperation between the external pull rod and the box body provided in an embodiment of the present application;

[0037] Figure 16 for Figure 15 The side view of the external pull rod and the box body is shown;

[0038] Figure 17 Schematic diagram of multiple external pull rods provided in embodiments of the present application being connected to the box body and stacked.

[0039] Description of reference numerals:

[0040] 100 - external pull rod, 110 - pull rod body, 111 - positioning groove, 112 - handle, 120 - housing, 1201 - bottom plate, 1202 - frame, 121 - through hole, 122 - baffle, 123 - slide groove, 124 - fixing hole, 125 - protrusion, 126 - first groove, 127 - positioning plate, 1271 - second groove, 128 - blocking plate, 130 - limiter, 140 - slider, 141 - spring groove, 142 - handle, 150 - spring;

[0041] 200-box body, 210-box body groove, 220-box body protrusion. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0043] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to be limiting of the present application. As used in the specification and appended claims of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear contrary indication in the context. It should also be understood that in the embodiments of the present application, "one or more" refers to one, two or more; "and / or" describes the association relationship of associated objects, indicating that three relationships may exist; for example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship.

[0044] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0045] The "multiple" involved in the embodiments of the present application means greater than or equal to two. It should be noted that in the description of the embodiments of the present application, the words "first" and "second" are only used for the purpose of distinguishing the description and cannot be understood as indicating or implying relative importance or order.

[0046] The terms "parallel" and "perpendicular" in this application refer to "substantially parallel" and "substantially perpendicular" in actual operation. "Substantially parallel" can be understood as parallel with a certain error, and similarly, "substantially perpendicular" can be understood as perpendicular with a certain error.

[0047] The embodiments of the present application provide an external pull rod and a pull rod box, which improve the stacking effect after the box body is connected to the external pull rod.

[0048] like Figures 1-17As shown, the external pull rod 100 provided in the embodiment of the present application includes a pull rod body 110 and a shell 120, wherein the pull rod body 110 is slidably connected to the shell 120, and the shell 120 has a first side and a second side that are relatively distributed. The shell 120 is used to be fixedly connected to the box body 200 located on the second side of the shell 120, so as to connect the external pull rod 100 to the box body 200 so that the external pull rod 100 can drive the box body 200 to move; the first side of the shell 120 is provided with a first limiting structure The first limiting structure is used to limit and cooperate with the box body 200 located on the first side of the outer shell 120. In this way, when multiple boxes 200 connected with external pull rods 100 need to be stacked, the outer shell 120 of each external pull rod 100 can be limited and cooperated with the box body 200 located on the first side of the outer shell 120 in turn through the first limiting structure, so that multiple boxes 200 connected with external pull rods 100 can be stably stacked, thereby improving the stacking effect after the box body 200 is connected to the external pull rod 100.

[0049] like Figure 1 、 Figure 2 、 Figure 9 、 Figure 10 As shown, the first side and the second side of the housing 120 are relatively distributed along the third direction. A first limiting structure is provided on the first side of the housing 120. The first limiting structure is a protrusion 125. The protrusion 125 can be limited and matched with the box groove 210 at the top of the box 200. In this way, after the external pull rod 100 is connected to the box 200, when stacking is required, as shown in FIG. Figure 17 As shown, in the vertical direction, the protrusion 125 can be limitedly matched with the box body groove 210 of the box body 200 located below the protrusion 125, so as to achieve a stable stacking effect of the box body 200 after connecting the external pull rod 100.

[0050] In order to ensure the stability of stacking, the protrusion 125 can be limitedly matched with the box groove 210 in at least one of the first direction and the second direction. Figure 9-10 As shown, the first direction, the second direction, and the third direction have an angle between each other, and the angle can be an acute angle, a right angle, or an obtuse angle. To ensure the stability of the limit fit, the angle in the embodiment of the present application is a right angle, that is, the first direction, the second direction, and the third direction are perpendicular to each other.

[0051] In some embodiments, in order to further ensure the stability of the limited fit between the protrusion 125 and the box groove 210, the protrusion 125 and the box groove 210 can achieve limited fit in both the first direction and the second direction. Figure 9As shown, the protrusion 125 is a strip-shaped protrusion and has a bent structure. Specifically, the length direction of the strip-shaped protrusion 125 is distributed along the second direction and has a bent portion along the first direction. The shape of the box groove 210 corresponds to the protrusion 125. In this way, the protrusion 125 and the box groove 210 are limitedly matched in both the first direction and the second direction, further improving the stacking stability.

[0052] In another embodiment, the length direction of the protrusion 125 can be distributed along the first direction and have a bending portion along the second direction. The shape of the box groove 210 corresponds to the protrusion 125, and the protrusion 125 and the box groove 210 can also be limited and matched in both the first direction and the second direction.

[0053] In order to enable the second side of the shell 120 to fit into the box body 200 and reduce the shaking between the external pull rod 100 and the box body 200, a second limiting structure is provided on the second side of the shell 120. The second limiting structure is used to fit into the box body 200 located on the second side of the shell 120. In this way, the fitting area between the shell 120 and the box body 200 connected to the external pull rod 100 is increased, and the connection stability between the external pull rod 100 and the box body 200 is improved.

[0054] In order to ensure the connection effect between the second side of the shell 120 and the box body 200, the second limiting structure can be limitedly matched with the box body 200 located on the second side of the shell 120 in at least one direction of the first direction and the second direction.

[0055] like Figure 3-Figure 4 As shown, the second limiting mechanism is a groove, which can be limited and matched with the box protrusion 220 of the box 200. In order to further ensure the connection effect between the shell 120 and the box 200, the box protrusion 220 is a strip-shaped protrusion and is bent. The groove of the shell 120 corresponds to the box protrusion 220 to achieve limited matching in both the first direction and the second direction.

[0056] It should be noted that in order to improve the practicality of the box body 200 and the external pull rod 100, the shape of the box body protrusion 220 is consistent with the shape of the protrusion 125 of the outer shell 120. In this way, the stacking stability of the box body 200 connected to the external pull rod 100 can be achieved while ensuring the stacking effect of the box body 200 itself.

[0057] like Figure 4As shown, the shell 120 includes a bottom plate 1201 and a frame 1202 located at the edge of the bottom plate 1201, a first groove 126 is provided on the frame 1202, and a positioning plate 127 distributed along a first direction is provided on the second side of the bottom plate 1201. The first direction is the sliding direction of the pull rod body 110, so that the positioning plate 127 can guide the pull rod body 110 to slide stably with the shell 120 along the first direction, reduce the shaking of the pull rod body 110 along the second direction, and improve the sliding stability between the pull rod body 110 and the shell 120; a second groove 1271 is provided on the positioning plate 127, and the first groove 126 and the second groove 1271 are distributed correspondingly along the shape of the box protrusion 220, so that the stability of the connection between the shell 120 and the box 200 can be further improved, and the degree of fit between the shell 120 and the box 200 located on the second side of the shell 120 is ensured.

[0058] like Figure 11 As shown, in order to further improve the connection effect between the pull rod body 110 and the outer shell 120, a baffle 122 is provided on the positioning plate 127, so that the pull rod body 110 can be located between the baffle 122 and the bottom plate 1201. By providing the baffle 122, the shaking of the pull rod body 110 along the third direction is reduced, and the sliding stability between the pull rod body 110 and the outer shell 120 is improved; at the same time, after the external pull rod 100 is connected to the box body 200, the baffle 122 is located between the pull rod body 110 and the box body 200, which can further increase the fitting area between the outer shell 120 and the box body 200, so as to increase the fitting effect of the external pull rod 100 and the box body 200.

[0059] In some embodiments, as Figure 11 As shown, there are two positioning plates 127 and two baffles 122, and the baffles 122 correspond one to one with the positioning plates 127. In this way, the pull rod body 110 is located between the two positioning plates 127, which can further ensure the sliding effect between the pull rod body 110 and the shell 120 and improve the sliding stability between the pull rod body 110 and the shell 120.

[0060] In actual situations, the frame 1202 is provided with a through hole 121 for the pull rod body 110 to pass through. Figure 13 As shown, the shape of the through hole 121 is adapted to the shape of the two vertical rods of the pull rod body 110 , which can provide positioning during the installation of the pull rod body 110 and the shell 120 , improve the convenience of installation, and ensure the connection stability of the pull rod body 110 and the shell 120 .

[0061] To provide a limit for the sliding between the pull rod body 110 and the housing 120, such as Figure 4 、 Figure 7 and Figure 8As shown, the housing 120 is provided with a sliding groove 123 for the slider 140 to slide along the second direction. In the second direction, there are two sliders 140, and the two sliding grooves 140 distributed along the second direction are connected by a spring 150. A positioning groove 111 is provided on the pull rod body 110. The slider 140 can be inserted into the positioning groove 111 and positioned with the positioning groove 111. In this way, by pulling the two sliders 140 to slide relative to each other, the pull rod body 110 can slide. When it slides to the desired position, the slider 140 is released. Under the action of the spring 150, the slider 140 can be inserted into the positioning groove 111 of the pull rod body 110 to realize the limitation of the pull rod body 110 in the sliding direction.

[0062] In order to provide limit adjustment for the pull rod body 110 in the sliding direction, there are at least two positioning grooves 111 in the first direction, which can realize the upper limit fixation of the pull rod body 110 in at least two positions to adapt to people of different heights and improve the practicality of the external pull rod 100.

[0063] In some embodiments, as Figure 7 As shown, in the first direction, there are three positioning slots 111 , which can provide three levels of position adjustment for the pull rod body 110 .

[0064] In some other embodiments, in the first direction, the number of the positioning slots 111 may be four, five, etc., to provide a more detailed adjustment range and further improve the practicality of the external pull rod 100. This embodiment of the present application does not limit this.

[0065] like Figure 5-Figure 6 As shown, the slider 140 is provided with a spring groove 141 , and the spring 150 can be fixedly connected to the interior of the slider 140 through the spring groove 141 , thereby improving the connection strength between the slider 140 and the spring 150 and extending the service life of the slider 140 .

[0066] In order to facilitate the use of the slider 140, as shown in FIG. Figure 5 As shown, the slider 140 is further provided with a handle 142 , and the slider 140 is slidable by pulling the handle 142 , thereby improving the convenience during the adjustment of the pull rod body 110 .

[0067] The external pull rod 100 provided in the embodiment of the present application further includes a limiting member 130, such as Figure 7 As shown, the first end of the pull rod body 110 has a handle 112, the second end of the pull rod body 110 is away from the first end of the pull rod body 110, the limit member 130 is fixedly connected to the second end of the pull rod body 110 through a threaded fastener, and the shell 120 has a third limit structure, which can cooperate with the limit member 130 to limit the sliding direction of the pull rod body 110.

[0068] For example, Figure 11As shown, the third limiting structure is a blocking plate 128, and the blocking plate 128 is distributed along the second direction. In this way, during the sliding of the pull rod body 110, the blocking plate 128 can cooperate with the limiting member 130 to prevent the pull rod body 110 from being pulled out of the outer shell 120 during the use of the external pull rod 100, thereby improving the safety of the external pull rod 100 during use.

[0069] In order to achieve a fixed connection between the external pull rod 100 and the box body 200, a fixing hole 124 is opened on the outer shell 120. The outer shell 120 is detachably fixedly connected to the box body 200 through the fixing hole 124 and threaded fasteners. There are at least two fixing holes 124 to achieve a stable connection between the external pull rod 100 and the box body 200.

[0070] In some embodiments, there may be four fixing holes 124 distributed at the four corners of the housing 120 to improve the connection stability between the external pull rod 100 and the box body 200 .

[0071] In another embodiment, Figure 9 As shown, there are eight fixing holes 124 symmetrically distributed on the protrusion 125 of the housing 120 , which can improve the stress strength during the installation of the external pull rod 100 and the box body 200 and improve the connection strength between the external pull rod 100 and the box body 200 .

[0072] In the process of connecting the external pull rod 100 and the box body 200 provided in the embodiment of the present application, as shown in FIG. Figure 12-14 As shown, first, pull the handle 142 of the slider 140 to drive the two sliders 140 to slide relative to each other to provide installation space for the pull rod body 110, and then pass the pull rod body 110 through the through hole 121 and assemble it with the shell 120, and then fix the limit piece 130 to the pull rod body 110 through the threaded fasteners, and then install the assembled external pull rod 100 on the box body 200 through the fixing hole 124 and the threaded fasteners. During the use of the external pull rod 100, the slider 140 can be used to limit the positioning grooves 111 at different positions on the pull rod body 110 to achieve adjustment of different positions of the pull rod body 110; and, when stacking is required, the protrusion 125 on the shell 120 can be limited and matched with the box groove 210 of the box body 200, thereby improving the stacking effect of the box body 200 connected with the external pull rod 100.

[0073] An embodiment of the present application further provides a trolley case, which includes a case body 200 and the external trolley 100 in the above embodiment.

[0074] Since the external pull rod 100 has the above-mentioned technical effects, the above-mentioned pull rod case includes the above-mentioned external pull rod 100, and the above-mentioned pull rod case also has the corresponding technical effects, which will not be repeated here.

[0075] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An external pull rod, characterized in that: include: A pull rod body (110) and a housing (120); Wherein, the pull rod body (110) is slidably connected to the housing (120); The housing (120) has a first side and a second side that are relatively distributed, and the housing (120) is used to be fixedly connected to the box (200) located on the second side of the housing (120); A first limiting structure is provided on the first side of the housing (120), and the first limiting structure is used for limiting cooperation with the box body (200) located on the first side of the housing (120).

2. The external pull rod according to claim 1, characterized in that: A second limiting structure is provided on the second side of the housing (120), and the second limiting structure is used for limiting cooperation with the box body (200) located on the second side of the housing (120).

3. The external pull rod according to claim 2, characterized in that: In the first direction, the second limiting structure is used to limit and cooperate with the box body (200) located on the second side of the housing (120); And / or, in the second direction, the second limiting structure is used to limit and cooperate with the box (200) located on the second side of the housing (120); The first side and the second side are distributed along a third direction, and angles are formed between any two of the first direction, the second direction, and the third direction.

4. The external pull rod according to claim 2, characterized in that: The second limiting structure is a groove, and the box body (200) is provided with a box body protrusion (220) that cooperates with the groove in a limiting manner.

5. The external pull rod according to claim 4, characterized in that: The housing (120) comprises a bottom plate (1201) and a frame (1202) located at the edge of the bottom plate (1201); Wherein, the groove comprises a first groove (126) and a second groove (1271); The first groove (126) is provided on the frame (1202); The housing (120) is provided with a positioning plate (127) distributed along a first direction, the first direction being the sliding direction of the pull rod body (110), and the second groove (1271) is provided on the positioning plate (127).

6. The external pull rod according to claim 5, characterized in that: A baffle (122) is provided on the positioning plate (127), and the pull rod body (110) is located between the baffle (122) and the bottom plate (1201).

7. The external pull rod according to claim 1, characterized in that: In a first direction, the first limiting structure is used to limit and cooperate with the box (200) located on a first side of the housing (120); And / or, in the second direction, the first limiting structure is used to cooperate with the box (200) located on the first side of the housing (120) in a limiting manner; The first side and the second side are distributed along a third direction, and angles are formed between any two of the first direction, the second direction, and the third direction.

8. The external pull rod according to claim 1, characterized in that: The first limiting structure is a protrusion (125), and the box body (200) is provided with a box body groove (210) that cooperates with the protrusion (125) in limiting manner.

9. The external pull rod according to claim 8, characterized in that: The protrusion (125) is a strip-shaped protrusion and has a bent structure.

10. The external pull rod according to claim 1, characterized in that: The housing (120) is provided with a sliding groove (123) for the slider (140) to slide along a second direction. There are two sliders (140) in the second direction, and the two sliders (140) distributed along the second direction are connected by a spring (150). A positioning groove (111) is provided on the pull rod body (110), and the sliding block (140) can be inserted into the positioning groove (111) and positioned and matched with the positioning groove (111).

11. The external pull rod according to claim 10, characterized in that: The slider (140) is provided with a spring slot (141), and the spring (150) is fixedly connected to the spring slot (141); And / or, a handle (142) is provided on the slider (140).

12. The external pull rod according to claim 1, characterized in that: It also includes a limiting member (130), the first end of the pull rod body (110) has a handle (112), the second end of the pull rod body (110) is away from the first end of the pull rod body (110), and the limiting member (130) is fixedly connected to the second end of the pull rod body (110) via a threaded fastener; The housing (120) has a third limiting structure, and the third limiting structure can cooperate with the limiting member (130) to limit the position in the sliding direction of the pull rod body (110).

13. A trolley case, characterized in that: include: A box body (200), and an external pull rod (100) according to any one of claims 1 to 12.

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