Dehumidifier

Abstract

The present invention discloses a dehumidifier, which includes a body and a storage box, wherein the body is provided with a storage slot and a wire outlet hole for a power cord to extend out, the storage slot is provided beside the wire outlet hole, the storage box is movably installed in the storage slot, the storage box can move outward relative to the storage slot to expose the box opening of the storage box to the outside, and the power cord can be stored in the storage box through the box opening. The technical solution of the present invention can better store the power cord and reduce the situation where the power cord is contaminated and damaged.

Description

Technical Field

[0001] The invention relates to the technical field of air dehumidification, and in particular to a dehumidifier. Background Art

[0002] In current dehumidifiers, in order to facilitate the storage of the power cord, a winding ear is generally provided on the back of the dehumidifier body, and the power cord is stored by winding the power cord around the winding ear. However, since the winding ear and the power cord both protrude from the body, the winding ear and the power cord are easily contaminated and damaged. Summary of the invention

[0003] The main purpose of the present invention is to provide a dehumidifier, which aims to better store the power cord and reduce the possibility of the power cord being contaminated and damaged.

[0004] To achieve the above object, the dehumidifier proposed by the present invention comprises:

[0005] A body, wherein the body is provided with a receiving slot and a wire outlet hole for the power cord to extend out, and the receiving slot is arranged next to the wire outlet hole; and

[0006] The receiving box is movably mounted on the receiving slot. The receiving box can move outward relative to the receiving slot to expose the box opening to the outside, and the power cord can be received into the receiving box through the box opening.

[0007] Optionally, the storage box is rotatably connected to the body.

[0008] Optionally, the storage box has a first side portion and a second side portion opposite to each other, the first side portion is rotatably connected to the body, the second side portion is detachably connected to the body, and the box opening is located at the second side portion.

[0009] Optionally, a buckle is provided on the second side portion, a slot is provided on the body, and the buckle is engaged with the slot.

[0010] Optionally, the buckle includes a first section connected to the second side portion, a second section arranged parallel to the first section, and a connecting section connecting the first section and the second section, and a snap-on protrusion is provided on the side of the second section facing away from the first section, and the snap-on protrusion is snap-on to the slot.

[0011] Optionally, the free end of the second section exceeds the snap-fitting protrusion to form a pressing portion for a user to press.

[0012] Optionally, the second side portion is provided with a first avoidance groove, and the first section is connected to the first avoidance groove; and / or, a second avoidance groove is provided on the body corresponding to the pressing portion.

[0013] Optionally, a wire passing notch is provided on one side of the box opening close to the wire outlet hole.

[0014] Optionally, the dehumidifier further comprises a blocking piece, the body is provided with a make way groove next to the receiving groove, the blocking piece is detachably arranged in the make way groove, the blocking piece and the groove wall of the make way groove are spaced to form the wire outlet hole, and the make way groove is used for the plug of the power cord to extend out.

[0015] Optionally, the blocking member is snap-connected to the fuselage.

[0016] Optionally, a first positioning portion is provided in the clearance groove, and a second positioning portion is provided in the blocking member, and the first positioning portion is slidably connected to the second positioning portion.

[0017] Optionally, the first positioning portion includes two positioning slots disposed on two opposite side walls of the clearance groove, and the second positioning portion includes two positioning protrusions disposed on two opposite sides of the blocking member, and the two positioning protrusions correspond to the two positioning slots one by one; or,

[0018] The first positioning portion includes two positioning protrusions provided on two opposite side walls of the clearance groove, and the second positioning portion includes two positioning slide grooves provided on two opposite sides of the blocking member, and the two positioning protrusions correspond to the two positioning slide grooves one by one; or

[0019] The first positioning portion includes a first positioning slot and a first positioning protrusion which are respectively arranged on two opposite side walls of the give way groove; the second positioning portion includes a second positioning slot and a second positioning protrusion which are respectively arranged on two opposite sides of the blocking member; the first positioning slot is slidably connected to the second positioning protrusion; and the first positioning protrusion is slidably connected to the second positioning slot.

[0020] The technical solution of the present invention is to provide a receiving groove on the body next to the wire outlet hole, and to provide a movable receiving box in the receiving groove, so that the power cord can be received in the receiving box. After the receiving box is received in the receiving groove, the power cord can be better received, thereby avoiding the situation that the power cord protrudes outside the body and reducing the situation that the power cord is contaminated and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1This is a schematic diagram of the structure of a dehumidifier in an embodiment of the present invention when the receiving box is in an open state;

[0023] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure of the storage box in a closed state;

[0025] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0026] Figure 5 for Figure 1 Schematic diagram of the dehumidifier;

[0027] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0028] Figure 7 for Figure 5 Schematic diagram of the structure of the medium storage box;

[0029] Figure 8 for Figure 2 A schematic diagram of the structure of a dehumidifier from one perspective;

[0030] Fig. 9 for Figure 8 Schematic diagram of the section at YY in the figure;

[0031] Fig.10 for Fig. 9 The enlarged view of point D in the middle;

[0032] Fig.11 for Figure 5 Schematic diagram of the structure of the middle sealing piece.

[0033] Description of Figure Numbers:

[0034]

[0035]

[0036] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] The invention provides a dehumidifier.

[0040] In the embodiments of the present invention, please refer to Figures 1 to 3 The dehumidifier includes a body 10 and a storage box 20. The body 10 is provided with a storage slot 11 and a wire outlet 12 for a power cord (not shown) to extend out. The storage slot 11 is provided next to the wire outlet 12. The storage box 20 is movably installed in the storage slot 11. The storage box 20 can move outward relative to the storage slot 11 to expose a box opening 21 of the storage box 20 to the outside, and the power cord is stored in the storage box 20 through the box opening 21.

[0041] In one embodiment, the receiving groove 11 and the wire outlet hole 12 are arranged on the outer side of the fuselage 10, and the receiving groove 11 and the wire outlet hole 12 are arranged adjacent to each other, so that when the receiving box 20 is placed in the receiving groove 11, the power cord can be easily received in the receiving box 20. The receiving box 20 has an open state in which it moves outward so that the box opening 21 of the receiving box 20 is exposed to the outside, and a closed state in which the receiving box 20 moves into the receiving groove 11 so that the box opening 21 of the receiving box 20 is closed in the receiving groove 11. Then, in the open state, the power cord can be placed in the receiving box 20, and by switching the receiving box 20 to the closed state, the power cord can be stored to avoid the power cord being exposed to the outside. Of course, in other embodiments, the receiving groove 11 and the wire outlet hole 12 can also be arranged on the bottom surface or top surface of the fuselage 10, etc.

[0042] The technical solution of the present invention is to provide a receiving groove 11 on the body 10 and a receiving box 20 that can be opened and moved in the receiving groove 11, so that the power cord can be received in the receiving box 20. After the receiving box 20 is received in the receiving groove 11, the power cord can be better received, thereby avoiding the power cord protruding outside the body 10 and reducing the possibility of the power cord being contaminated and damaged.

[0043] Please refer to Figures 5 to 10 In one embodiment, the storage box 20 is rotatably connected to the body 10. Specifically, the storage box 20 is provided with a rotating shaft 221, and the groove wall of the storage groove 11 is provided with an axial hole 17. The storage box 20 is rotatably connected to the storage groove 11 through the plug-in cooperation between the rotating shaft 221 and the axial hole 17. In this way, when the storage box 20 is opened, it is only necessary to rotate the storage box 20 to achieve the switching between the open state and the closed state, which is convenient for operation. Moreover, the storage box 20 can be always connected to the body 10, and the storage box 20 does not need to be removed, which can ensure the integrity of the dehumidifier and avoid the situation that the storage box 20 is easily lost when it is removed. Among them, coaxial protrusions can be respectively provided on the two opposite sides of the storage box 20, and the two protrusions form a rotating shaft 221. The storage box 20 can also be provided with a rotating shaft 221 that runs through the two opposite sides of the storage box 20. The rotating shaft 221 can be integrally formed with the storage box 20, or can be detachably connected to the storage box 20. In addition, in other embodiments, the storage box 20 may also be detachably hung in the storage slot 11 .

[0044] In one embodiment, the storage box 20 has a first side portion 22 and a second side portion 23 opposite to each other, the first side portion 22 is rotatably connected to the body 10, the second side portion 23 is detachably connected to the body 10, and the box opening 21 is located at the second side portion 23. Specifically, the rotating shaft 221 is provided at the first side portion 22, and when the storage box 20 is in a closed state, the second side portion 23 is connected and fixed to the body 10 to prevent the storage box 20 from opening automatically. When the storage box 20 is switched from the closed state to the open state, the second side portion 23 needs to be unlocked and disengaged from the body 10, so that the storage box 20 can open the box opening 21. The second side portion 23 can be clamped to the body 10 through a clamping structure, or the second side portion 23 and the body 10 are locked by pins or screws, etc.

[0045] In one embodiment, a buckle 24 is provided on the second side portion 23, and a slot 15 is provided on the body 10, and the buckle 24 is engaged with the slot 15. Compared with the way that the second side portion 23 and the body 10 are connected by screws, when the buckle 24 on the second side portion 23 is engaged with the slot 15 on the body 10, it is not necessary to use a screwdriver or other tools to operate, and it is only necessary to press the storage box 20 to make the buckle 24 engage with the slot 15, and to pull the storage box 20 to make the buckle 24 disengage from the slot 15, so as to facilitate opening and closing the storage box 20. In addition, it can be understood that compared with the slot 15, the buckle 24 is more easily worn. By setting the buckle 24 on the storage box 20, even if the buckle 24 is damaged, it is convenient to replace the storage box 20, and the cost of replacing the storage box 20 is lower than replacing the entire shell of the body 10. In addition, the number of the buckles 24 can be one or more. When the number of the buckles 24 is multiple, the multiple buckles 24 are arranged at intervals along the length direction of the second side portion 23. For example, the number of the buckles 24 can be two, three or four, etc.

[0046] In one embodiment, the buckle 24 includes a first section 241 connected to the second side portion 23, a second section 242 arranged in parallel with the first section 241, and a connecting section 243 connecting the first section 241 and the second section 242. A clamping protrusion 244 is provided on the side of the second section 242 away from the first section 241, and the clamping protrusion 244 is clamped with the clamping slot 15. Specifically, one end of the first section 241 is connected to the second side portion 23, and the other end is connected to the connecting section 243. One end of the second section 242 is connected to the connecting section 243, and the first section 241 and the second section 242 are arranged at intervals and connected to the same side of the connecting section 243. It should be noted that the first section 241 and the second section 242 can be arranged in parallel or inclined to each other, that is, the first section 241 and the second end are arranged in a substantially "U" shape or "V" shape. In this way, the buckle 24 has elasticity, and the second section 242 can be elastically deformed in the direction of the first section 241. By arranging the snap-fitting protrusion 244 on the side of the second section 242 away from the first section 241, the deformation amount of the buckle 24 when the snap-fitting protrusion 244 is snapped into the slot 15 is increased, and the buckle 24 can be easily snapped into the slot 15.

[0047] In one embodiment, the free end of the second section 242 exceeds the clamping protrusion 244 to form a pressing portion 2421 for a user to press. Specifically, the pressing portion 2421 is located at the end of the second section 242 away from the connecting section 243, and the clamping protrusion 244 is located between the pressing portion 2421 and the connecting section 243. When the storage box 20 is in a closed state, the clamping protrusion 244 is located in the clamping slot 15. At this time, by pressing the pressing portion 2421 toward the direction of the first section 241, the clamping protrusion 244 can be moved toward the direction of the first section 241 together with the second section 242 and separated from the clamping slot 15, so that the storage box 20 can be opened. When the storage box 20 is received in the storage slot 11, the pressing portion 2421 can be pressed toward the direction of the first section 241. When the clamping protrusion 244 corresponds to the clamping slot 15, the pressing portion 2421 is released. Under the elastic recovery of the second section 242, the clamping protrusion 244 can move away from the first section 241 and be clamped into the clamping slot 15. In this way, the friction between the clamping protrusion 244 and the body 10 can be reduced, the wear of the buckle 24 can be reduced, and the service life of the storage box 20 can be increased. In one embodiment, the clamping protrusion 244 has a guide slope 2441 connected to the second section 242, and the guide slope 2441 is located on the side of the free end of the clamping protrusion 244 away from the pressing portion 2421, so that the clamping protrusion 244 can be conveniently clamped into the clamping slot 15. In addition, in other embodiments, the buckle 24 can also include only the first section 241, and the clamping protrusion 244 is arranged at the free end of the first section 241.

[0048] In one embodiment, the second side portion 23 is provided with a first avoidance groove 231, and the first section 241 is connected to the first avoidance groove 231. Specifically, the first avoidance groove 231 penetrates the second side portion 23 and communicates with the outside, the first section 241 is connected to the groove bottom of the first avoidance groove 231, and the second section 242 is exposed from the first avoidance groove 231 so that the user can press the pressing portion 2421. By arranging the buckle 24 in the first avoidance groove 231, the height of the buckle 24 protruding from the second side portion 23 can be reduced, and then the gap between the second side portion 23 and the groove wall of the receiving groove 11 can be reduced, which can reduce the possibility of external dust or water stains and other debris entering the receiving box 20.

[0049] In one embodiment, a second avoidance groove 14 is provided on the fuselage 10 corresponding to the pressing portion 2421. Specifically, the second avoidance groove 14 is provided on the outer side of the fuselage 10, and the second avoidance groove 14 is located on the side of the pressing portion 2421 that is away from the first section 241. By providing the second avoidance groove 14, it is equivalent to increasing the gap between the pressing portion 2421 and the fuselage 10, so that when the storage box 20 is in a closed state, there is a larger space between the pressing portion 2421 and the fuselage 10 for user operation. In addition, since the second avoidance groove 14 is only provided at the position corresponding to the pressing portion 2421, and the second avoidance groove 14 is located on the outer side of the fuselage 10, it is still possible to ensure that the gap between the second side portion 23 and the wall of the storage groove 11 is small. In one embodiment, in combination with reference to Figure 4 and Fig.10 The first avoidance groove 231 and the second avoidance groove 14 are arranged opposite to each other, and the pressing portion 2421 is located between the first avoidance groove 231 and the second avoidance groove 14 .

[0050] Please refer to it again Figure 7 In one embodiment, a wire-passing notch 25 is provided on one side of the box opening 21 near the wire outlet hole 12. It can be understood that when the power cord is stored in the storage box 20, the power cord is bent from the wire outlet hole 12 and extends into the storage box 20 through the edge of the box opening 21. By providing the wire-passing notch 25 on the box opening 21, the power cord can extend into the storage box 20 from the wire-passing notch 25, which is convenient for storing the power cord and can also prevent the power cord from protruding from the box opening 21 and interfering with the body 10.

[0051] Please refer to it again Figures 3 to 6 In one embodiment, the dehumidifier further includes a blocking member 30. The body 10 is provided with a clearance groove 13 arranged next to the receiving groove 11. The blocking member 30 is detachably arranged in the clearance groove 13. The blocking member 30 and the groove wall of the clearance groove 13 are spaced apart to form a wire outlet hole 12. The clearance groove 13 is used for extending the plug of the power cord. Specifically, the clearance groove 13 is connected to the inside of the body 10, and the size of the clearance groove 13 is larger than the size of the power cord plug, so that when assembling the components inside the body 10, the power cord can be extended out of the body 10 from the clearance groove 13. When the blocking member 30 is installed in the clearance groove 13, it can be spaced apart from the groove wall of the clearance groove 13 to form a wire outlet hole 12, and block most of the notches of the clearance groove 13 to reduce the possibility of external dust or water stains and other debris entering the body 10. In addition, the outlet hole 12 can be connected to the receiving groove 11, so that when the power cord is received in the receiving box 20, the power cord can be directly passed through the wire notch 25 from the outlet hole 12 (refer to Figure 7) extends into the storage box 20, preventing the power cord from being exposed to the outside, further reducing the possibility of the power cord being contaminated and damaged. In one embodiment, the clearance groove 13 and the storage groove 11 are connected to each other, which is equivalent to increasing the opening size of the clearance groove 13, making it easier for the power cord plug to extend. The blocking member 30 is provided with an axial hole 17 (refer to Fig.11 ), one end of the rotating shaft 221 of the storage box 20 is rotatably connected to the fuselage 10, and the other end is rotatably connected to the blocking member 30. Since the blocking member 30 and the storage box 20 can be detachably connected to the fuselage 10, when one end of the rotating shaft 221 of the storage box 20 is rotatably connected to the blocking member 30, one end of the rotating shaft 221 of the storage box 20 can be inserted into the shaft hole 17 on the fuselage 10, and then the other end of the rotating shaft 221 of the storage box 20 is matched with the shaft hole 17 on the blocking member 30, and then the storage box 20 and the blocking member 30 can be installed together on the fuselage 10, which can facilitate installation. Of course, in other embodiments, the storage box 20 and the blocking member 30 can also be installed separately.

[0052] There are many ways to detachably install the blocking member 30. For example, please refer to Figure 6 and Fig.11 In one embodiment, the blocking member 30 is snapped with the fuselage 10. Specifically, a snap-on portion 32 is provided on the blocking member 30, and a snap-on groove 16 is provided on the fuselage 10, and the snap-on portion 32 is snapped with the snap-on groove 16. Compared with the way that the blocking member 30 and the fuselage 10 are connected by screws, when the snap-on portion 32 on the blocking member 30 is snapped with the snap-on groove 16 on the fuselage 10, it is not necessary to use a screwdriver or other tools for operation. It is only necessary to snap the snap-on portion 32 with the snap-on groove 16 to achieve the fixing of the blocking member 30, and the structure is simple and easy to install. In addition, it can be understood that compared with the snap-on groove 16, the snap-on portion 32 is more susceptible to wear. By setting the snap-on portion 32 on the blocking member 30, even if the snap-on portion 32 is damaged, the blocking member 30 can be easily replaced, and the cost of replacing the blocking member 30 is lower than replacing the entire outer shell of the fuselage 10. In addition, the number of the snap-on portions 32 can be one or more, for example, the number of the snap-on portions 32 can be two, three or four, etc. Of course, in other embodiments, the blocking member 30 may also be fixed to the body 10 by means of pins or screws.

[0053] In order to facilitate the installation and positioning of the blocking member 30, in one embodiment, a first positioning portion 18 is provided in the clearance groove 13, and the blocking member 30 is provided with a second positioning portion 31, and the first positioning portion 18 is slidably connected to the second positioning portion 31. Specifically, the first positioning portion 18 and the second positioning portion 31 are used to position the blocking member 30 when the blocking member 30 is installed, so as to ensure that the blocking member 30 is adapted to be installed in the clearance groove 13. There are various structures of the first positioning portion 18 and the second positioning portion 31. For example, in one embodiment, the first positioning portion 18 includes a first positioning slot 181 and a first positioning protrusion 182 respectively arranged on two opposite side walls of the clearance groove 13, and the second positioning portion 31 includes a second positioning slot 311 and a second positioning protrusion 312 respectively arranged on two opposite sides of the blocking member 30, the first positioning slot 181 is slidably connected to the second positioning protrusion 312, and the first positioning protrusion 182 is slidably connected to the second positioning slot 311. Specifically, the first positioning protrusion 182 can extend into the second positioning slot 311 and slide along the extension direction of the second positioning slot 311, and the second positioning protrusion 312 can extend into the first positioning slot 181 and slide along the extension direction of the first positioning slot 181. Such a structure is simple and easy to install, and can ensure that the two opposite sides of the blocking member 30 are evenly stressed, so that the installation stability of the blocking member 30 is better.

[0054] In another embodiment, the first positioning portion 18 includes two positioning grooves (refer to the structure of the first positioning groove 181) disposed on two opposite side walls of the give way groove 13, and the second positioning portion 31 includes two positioning protrusions (refer to the structure of the second positioning protrusion 312) disposed on two opposite sides of the blocking member 30, and the two positioning protrusions correspond one to one with the two positioning grooves. In yet another embodiment, the first positioning portion 18 may include two positioning protrusions disposed on two opposite side walls of the give way groove 13, and the second positioning portion 31 may include two positioning grooves disposed on two opposite sides of the blocking member 30, and the two positioning protrusions correspond one to one with the two positioning grooves. In addition, in other embodiments, a guide groove may be disposed on the groove wall of the give way groove 13, and the blocking member 30 may be directly slidably connected to the guide groove, and so on.

[0055] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A dehumidifier, characterized in that: include: A body, wherein a receiving slot and a wire outlet hole for the power cord to extend out are provided on the body, and the receiving slot is provided next to the wire outlet hole; as well as, A storage box is movably mounted on the storage slot, and the storage box can move outward relative to the storage slot to expose the box opening of the storage box to the outside, and the power cord can be stored in the storage box through the box opening; The dehumidifier further comprises a blocking member, the body is provided with a clearance groove arranged beside the receiving groove, the blocking member is detachably arranged in the clearance groove, the blocking member and the groove wall of the clearance groove are spaced to form the outlet hole, and the clearance groove is used for the plug of the power cord to extend out; A wire passing notch is provided on one side of the box opening close to the wire outlet hole; The receiving groove and the wire outlet hole are arranged on the outer side surface of the body.

2. The dehumidifier according to claim 1, characterized in that: The storage box is rotatably connected to the body.

3. The dehumidifier according to claim 2, characterized in that: The storage box has a first side portion and a second side portion opposite to each other, the first side portion is rotatably connected to the body, the second side portion is detachably connected to the body, and the box opening is located at the second side portion.

4. The dehumidifier according to claim 3, characterized in that: A buckle is provided on the second side portion, a slot is provided on the body, and the buckle is engaged with the slot.

5. The dehumidifier according to claim 4, characterized in that: The buckle includes a first section connected to the second side portion, a second section arranged in parallel with the first section, and a connecting section connecting the first section and the second section. The second section is provided with a snap-on protrusion on the side facing away from the first section, and the snap-on protrusion is snap-on with the slot.

6. The dehumidifier according to claim 5, characterized in that The free end of the second section exceeds the clamping protrusion to form a pressing portion for a user to press.

7. The dehumidifier according to claim 6, characterized in that The second side portion is provided with a first avoidance groove, and the first section is connected to the first avoidance groove; and / or, a second avoidance groove is provided on the body corresponding to the pressing portion.

8. The dehumidifier according to claim 1, characterized in that: The blocking member is clamped with the fuselage.

9. The dehumidifier according to claim 8, characterized in that A first positioning portion is provided in the clearance groove, and a second positioning portion is provided in the blocking member. The first positioning portion is slidably connected with the second positioning portion.

10. The dehumidifier according to claim 9, characterized in that The first positioning portion includes two positioning slots disposed on two opposite side walls of the clearance groove, and the second positioning portion includes two positioning protrusions disposed on two opposite sides of the blocking member, and the two positioning protrusions correspond to the two positioning slots one by one; or The first positioning portion includes two positioning protrusions provided on two opposite side walls of the clearance groove, and the second positioning portion includes two positioning slide grooves provided on two opposite sides of the blocking member, and the two positioning protrusions correspond to the two positioning slide grooves one by one; or The first positioning portion includes a first positioning slot and a first positioning protrusion which are respectively arranged on two opposite side walls of the give way groove; the second positioning portion includes a second positioning slot and a second positioning protrusion which are respectively arranged on two opposite sides of the blocking member; the first positioning slot is slidably connected to the second positioning protrusion; and the first positioning protrusion is slidably connected to the second positioning slot.

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