A handle assembly structure

Abstract

This application discloses a handle assembly structure, relating to the technical field of handle structures for lithium batteries. In this handle assembly structure, the upper shell is provided with an insertion portion, which has a head end and a tail end; guide grooves are provided on both sides of the insertion portion; the portion of the insertion portion located between the guide grooves forms a tensioning portion, and the tail end portions of the tensioning portion are provided with insertion holes; the guide grooves connect the insertion holes and the head end; the handle is provided with a deformation pre-reserved groove, and adapter shafts are provided protruding from both sides of the deformation pre-reserved groove; wherein, the insertion portion is inserted into the deformation pre-reserved groove; the adapter shafts are slidably disposed in the guide grooves so as to slide towards the insertion holes; the deformation pre-reserved groove is configured to be gradually expanded by the adapter shaft abutting against the tensioning portion when the adapter shaft slides towards the insertion hole, and to retract when the adapter shaft slides to the insertion hole, so that the adapter shaft can be rotatably inserted into the insertion hole. This application can improve the assembly efficiency of the handle.

Description

Technical Field

[0001] This application relates to the field of handle structure technology for lithium batteries, and more specifically to a handle assembly structure. Background Technology

[0002] The plastic casing of a lithium battery typically includes a housing, a top shell, and a handle. The housing contains the lithium battery, the top shell covers the housing, and the handle is located on the top shell. The top shell has insertion holes on both side walls, and the handle has deformation-prepared slots. Adapter shafts protrude from the side walls of these deformation-prepared slots. The top shell is inserted into the deformation-prepared slots, and the adapter shafts are inserted into the insertion holes.

[0003] To assemble the handle onto the upper shell, steps S11 to S13 must be performed sequentially. Step S11: First, use both hands to pry open the deformation pre-reserved slot, allowing the upper shell to be accommodated between the adapter shafts on both sides of the slot. Step S12: Align the opening of the pried-open deformation pre-reserved slot with the upper shell and move the handle to insert the upper shell into the deformation pre-reserved slot, ensuring that the adapter shafts on both sides of the pried-open deformation pre-reserved slot are aligned with the insertion holes. Step S13: Release the deformation pre-reserved slot, causing it to retract and allowing the adapter shafts on both sides of the slot to insert into the insertion holes.

[0004] As mentioned above, in the existing technology, to assemble the handle onto the upper shell, it is necessary to manually pry open the deformation pre-reserved slot and move the handle to insert the upper shell into the deformation pre-reserved slot, resulting in a rather cumbersome operation. Obviously, how to provide a handle assembly structure to improve the assembly efficiency of the handle remains a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, in order to solve the above-mentioned technical problems, this application provides a handle assembly structure, which includes:

[0006] The upper shell is provided with a plug-in part, which has a head end and a tail end; guide grooves are provided on both sides of the plug-in part; the part of the plug-in part located between the guide grooves forms a tensioning part, and the parts of the tensioning part located at the tail end are provided with insertion holes; the guide grooves connect the insertion holes and the head end;

[0007] The handle is provided with a deformation reserved groove, and the two side walls of the deformation reserved groove are provided with a transition shaft protruding into the deformation reserved groove;

[0008] The insertion part is inserted into the deformation reserved groove; the adapter shaft is slidably disposed in the guide groove so as to slide toward the insertion hole; the deformation reserved groove is configured to be gradually expanded by the adapter shaft abutting the tensioning part when the adapter shaft slides toward the insertion hole and to retract when the adapter shaft slides to the insertion hole, so that the adapter shaft can be rotatably inserted into the insertion hole.

[0009] Beneficial effects: Unlike existing technologies, in this application, when assembling the handle onto the upper shell, by aligning the opening of the deformation pre-reserved groove with the insertion part and moving the handle to insert the insertion part into the deformation pre-reserved groove, and allowing the adapter shaft to slide from the guide groove to the insertion hole, the deformation pre-reserved groove is gradually expanded by the tensioning part as the adapter shaft slides towards the insertion hole, and the deformation pre-reserved groove retracts when the adapter shaft slides into the insertion hole, thus enabling the adapter shaft to be inserted into the insertion hole. The entire process does not require manual opening of the deformation pre-reserved groove beforehand, thus improving the assembly efficiency of the handle. Attached Figure Description

[0010] Figure 1 This is a disassembly diagram of the handle assembly structure of this application. Figure 1 Displayed in three dimensions;

[0011] Figure 2 yes Figure 1 Enlarged schematic diagram of region A in the middle;

[0012] Figure 3 This is a disassembly diagram of the handle assembly structure of this application. Figure 3 Displayed from the rear viewpoint;

[0013] Figure 4 It is along Figure 3 A schematic diagram of the cross-section obtained by cutting along the central section line AA;

[0014] Figure 5 yes Figure 4 Enlarged schematic diagram of region B in the middle;

[0015] Figure 6 This is a schematic diagram of the handle assembly structure of the present application from one perspective;

[0016] Figure 7 This is a schematic diagram of the handle assembly structure of this application. Figure 7 The adapter shaft of the center handle is slidably mounted in the guide groove;

[0017] Figure 8 This is a schematic diagram of the handle assembly structure of this application. Figure 8 The adapter shaft of the center handle is inserted into the insertion hole and the handle is stored in the storage slot;

[0018] Figure 9 This is a schematic diagram of the handle assembly structure of this application. Figure 9 The adapter shaft of the center handle is inserted into the insertion hole and the handle extends out of the storage slot;

[0019] Figure 10 yes Figure 5 A schematic diagram showing the dimensions of the structure is provided.

[0020] Figure 11This is a schematic diagram of the handle assembly structure of this application from another perspective;

[0021] Figure 12 This is another schematic diagram of the handle assembly structure of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] Handle assembly structure 10; upper shell 100; storage groove 101; insertion part 110; head end 111; tail end 112; insertion hole 113; tensioning part 114; guide groove 115; abutment surface 1151; guide block 1152; boss 120; recess 130; handle 200; deformation reserved groove 201; front-back direction W; left-right direction L; up-down direction H; first dimension d1; second dimension d2; third dimension d3; fourth dimension d4;

[0024] Handle 210; Flat part 211; First side 2111; Mesh rib part 2112; Clearance space 212; First upright plate part 213; Clearance groove 2131; Divider block 2132; First sub-groove 2133; Second upright plate part 214; Second sub-groove 2141; Connecting arm 220; Strip groove 221; Partition 222; First side plate part 223; Second side plate part 224; Adapter shaft 230; Locking hook 240. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, inside, outside, etc.) in the embodiments of this application are only used to explain the relative positional relationship between the components in the handle assembly structure, and do not necessarily represent the posture of the handle assembly structure in actual use. The posture of the machine tool head in actual use can be adjusted according to actual needs.

[0027] Please see Figures 1-8 As shown, the lithium battery handle assembly structure 10 of this application includes an upper shell 100 and a handle 200.

[0028] The upper shell 100 is provided with a plug-in portion 110, which has a head end 111 and a tail end 112; guide grooves 115 are provided on both sides of the plug-in portion 110; the portion of the plug-in portion 110 located between the guide grooves 115 is formed into a tensioning portion 114, and the portions of the tensioning portion 114 located at the tail end 112 are provided with insertion holes 113; the guide grooves 115 connect the insertion holes 113 and the head end 111.

[0029] The handle 200 is provided with a deformation reserved groove 201. The two side walls of the deformation reserved groove 201 are provided with a transition shaft 230 protruding into the deformation reserved groove 201.

[0030] The insertion part 110 is inserted into the deformation pre-reserved groove 201. The adapter shaft 230 is slidably disposed in the guide groove 115 so as to slide toward the insertion hole 113. The deformation pre-reserved groove 201 is configured such that when the adapter shaft 230 slides toward the insertion hole 113, it abuts against the tensioning part 114 and is gradually expanded by the tensioning part 114, and retracts when the adapter shaft 230 slides to the insertion hole 113, so that the adapter shaft 230 is rotatably inserted into the insertion hole 113.

[0031] By assembling the handle 200 onto the upper shell 100 using the above method, by aligning the opening of the deformation pre-reserved groove 201 with the insertion part 110 and moving the handle 200 to insert the insertion part 110 into the deformation pre-reserved groove 201, and by sliding the adapter shaft 230 from the guide groove 115 to the insertion hole 113, the deformation pre-reserved groove 201 is gradually opened by the tensioning part 114 as the adapter shaft 230 slides into the insertion hole 113. Conversely, the deformation pre-reserved groove 201 retracts as the adapter shaft 230 slides into the insertion hole 113, thus enabling the adapter shaft 230 to be inserted into the insertion hole 113. The entire process does not require manually opening the deformation pre-reserved groove 201 beforehand, thus improving the assembly efficiency of the handle 200.

[0032] Optionally, such as Figures 1-9 As shown, the upper shell 100 has mutually perpendicular vertical directions H, front-back directions W, and left-right directions L. A boss 120 is provided in the middle of the upper shell 100, and a recess 130 is provided around the boss 120. The upper surface of the recess 130 and the outer periphery of the boss 120 form a receiving groove 101.

[0033] Two handles 200 are respectively provided at both ends of the boss 120 along the left-right direction L, and a deformation reserved groove 201 is provided at the end of the handle 200 facing the boss 120. The insertion part 110 is formed at both ends of the boss 120 along the left-right direction L, with the head end 111 being the end of the insertion part 110 facing the handle 200, and the tail end 112 being the end of the insertion part 110 away from the handle 200;

[0034] The guide groove 115 is provided on the outer side of the boss 120. From the head end 111 to the tail end 112, the tensioning part 114 gradually increases in size along the axial direction of the adapter shaft 230, so as to gradually expand the deformation reserved groove 201 when the adapter shaft 230 slides into the insertion hole 113. When the adapter shaft 230 is inserted into the insertion hole 113, the handle 200 can be stored in the storage groove 101 and the handle 200 can rotate around the insertion hole 113 to be released from the storage groove 101.

[0035] By storing the handle 200 in the storage slot 101 in the above manner, the space occupied by the handle assembly structure 10 can be reduced, so as to facilitate the storage of the handle 200 and the handle assembly structure 10. When the handle 200 is placed out of the storage slot 101, it is convenient to move the handle assembly structure 10 through the handle 200.

[0036] Optionally, such as Figures 1-8 As shown, guide grooves 115 are respectively provided on both sides of the insertion part 110 along the front-back direction W, and insertion holes 113 are respectively provided on both sides of the tensioning part 114 along the front-back direction W, but not limited thereto.

[0037] Optionally, such as Figures 1-8 As shown, the guide groove 115 is formed by at least an abutment surface 1151 and two guide blocks 1152. The abutment surface 1151 is formed on the side of the tensioning part 114 and is used to abut the adapter shaft 230. The two guide blocks 1152 are respectively protruding from the side of the tensioning part 114 and are used to guide the adapter shaft 230 to slide in the guide groove 115.

[0038] Optionally, combined Figures 1-8 See Figure 10 As shown, the dimension of the end of the tensioning part 114 facing the handle 200 along the front-back direction W is the first dimension d1, and the dimension of the end of the tensioning part 114 adjacent to the insertion hole 113 along the front-back direction W is the second dimension d2. The difference between the second dimension d2 and the first dimension d1 is 5.0mm to 13.0mm, but is not limited to this. For example, the difference between the second dimension d2 and the first dimension d1 is 5.0mm, 9.0mm, or 13.0mm, but is not limited to this.

[0039] Preferably, the difference between the second dimension d2 and the first dimension d1 is 8.0mm to 10.0mm, but it is not limited thereto. For example, the difference between the second dimension d2 and the first dimension d1 is 8.0mm, 8.5mm, 8.9mm or 10.0mm, but it is not limited thereto.

[0040] Optionally, such as Figures 1-8 As shown, the handle 200 includes a handle 210 and two connecting arms 220. The handle 210 and the two connecting arms 220 surround a pre-formed groove 201.

[0041] The handle 210 is located at the end of the deformation reserved groove 201 away from the insertion part 110. The two connecting arms 220 are respectively formed as the two side walls of the deformation reserved groove 201 arranged in the front-back direction W. The adapter shaft 230 protrudes from the end of the connecting arm 220 away from the handle 210 and protrudes into the deformation reserved groove 201.

[0042] Optionally, such as Figures 1-9 As shown, the handle 200 includes a locking hook 240. The locking hook 240 is disposed on the adapter shaft 230 and spaced apart from the connecting arm 220.

[0043] When the handle 200 is stored in the storage slot 101, the locking hook 240 avoids the side wall of the insertion hole 113, so that when the deformation reserved slot 201 is opened, the adapter shaft 230 can be driven out of the insertion hole 113. When the handle 200 is released from the storage slot 101, the locking hook 240 hooks onto the side wall of the insertion hole 113 to prevent the adapter shaft 230 from exiting the insertion hole 113.

[0044] In this way, when the handle 200 is out of the storage slot 101 and the handle 200 is pulled, the adapter shaft 230 is not easy to come out of the insertion hole 113, so as to avoid the handle 200 accidentally coming off the upper shell 100 when the handle 200 is pulled.

[0045] Optionally, such as Figures 1-9 As shown, the handle 210 includes a flat portion 211 and a first upright portion 213. When the handle 200 is stored in the storage slot 101, the flat portion 211 is spaced apart from the recess 130 to form a clearance space 212 between the recess 130 and the flat portion 211. The first upright portion 213 is disposed on the side of the flat portion 211 near the deformation reserved slot 201. The flat portion 211 has a first side 2111, which faces the recess 130 when the handle 200 is stored in the storage slot 101. The first upright portion 213 extends toward the first side 2111.

[0046] The first upright plate portion 213 is located between the two connecting arms 220, and the two ends of the first upright plate portion 213 along the front-back direction W are respectively connected to the two connecting arms 220. A clearance groove 2131 is provided on the side of the first upright plate portion 213 away from the flat portion 211.

[0047] In this way, the clearance space 212 not only avoids other components installed on the recess 130, but also avoids a person's hand, allowing the hand to reach into the clearance space 212 to rotate the handle 200 around the insertion hole 113, thereby allowing the handle 200 to be released from the storage slot 101 for easy lifting. The clearance slot 2131 avoids a person's hand when lifting the handle 200, allowing the hand to grip the handle 200 firmly. When the handle 200 is released from the storage slot 101 and the flat portion 211 extends into a flat shape in the vertical direction H, the flat portion 211 can improve the mechanical strength of the handle 210 in the vertical direction H, thereby making the handle 210 less prone to breakage when lifting. Furthermore, the design of the flat portion 211 helps to achieve a lightweight handle 210.

[0048] Optionally, such as Figures 1-9 As shown, the bottom wall of the clearance groove 2131 is provided with a partition block 2132 protruding out, so that the bottom wall of the clearance groove 2131 forms a plurality of first sub-grooves 2133. In this way, the multiple first sub-grooves 2133 can be used to separately accommodate fingers, thereby increasing the friction between the hand and the handle 210 and playing an anti-slip role.

[0049] Optionally, combined Figures 1-9 See Figure 11 and Figure 12 As shown, the connecting arm 220 extends to the first side 2111, and when the handle 200 is stored in the storage slot 101, the connecting arm 220 abuts against the recess 130.

[0050] The connecting arm 220 has a strip groove 221 on one side that abuts against the recessed platform 130. The strip groove 221 connects to the side of the first upright plate 213 away from the deformation reserved groove 201 and extends towards the end of the connecting arm 220 away from the flat portion 211. Multiple partitions 222 are provided inside the strip groove 221, and the partitions 222 are respectively connected to the bottom wall and the two side walls of the strip groove 221. When the handle 200 is stored in the storage slot 101, the multiple partitions 222 are arranged in the left-right direction L. A mesh rib portion 2112 is provided on the first side 2111 of the flat portion 211, and the mesh rib portion 2112 is respectively connected to the first upright plate 213 and the connecting arm 220.

[0051] Through the above methods, the design of the strip groove 221 can reduce the weight of the connecting arm 220, and the design of multiple partitions 222 can improve the mechanical strength of the strip groove 221, making it less prone to deformation. The design of the mesh rib section 2112 can improve the mechanical strength of the flat section 211, making the handle 210 less prone to breakage when it is lifted.

[0052] Optionally, combined Figures 1-9 See Figure 11 and Figure 12As shown, the connecting arm 220 includes a first side plate portion 223 and a second side plate portion 224, which are the two side walls of the strip groove 221 along the front-rear direction W, respectively.

[0053] In the connecting arm 220, the second side plate portion 224 is located on the side of the first side plate portion 223 away from the deformation reserved groove 201. The first upright plate portion 213 is connected to the first side plate portions 223 of the two connecting arms 220 respectively.

[0054] The handle 210 includes a second upright plate portion 214. The second upright plate portion 214 is located on the side of the first upright plate portion 213 away from the deformation reserved groove 201 and is connected to the second side plate portions 224 of the two connecting arms 220 respectively. The second upright plate portion 214 is provided with a second sub-groove 2141 corresponding to the first sub-groove 2133.

[0055] In this manner, the cooperation between the second upright plate 214 and the first upright plate 213 further strengthens the mechanical strength of the flat portion 211 and the connecting arm 220, and increases the deformation stress of the deformation pre-reserved groove 201, so that the adapter shaft 230 can be securely inserted into the insertion hole 113 and is not easily dislodged from the insertion hole 113. The second sub-groove 2141 and the corresponding first sub-groove 2133 cooperate to accommodate fingers, thereby increasing the contact area between the hand and the handle 200 when the hand lifts the handle 200, thus reducing the pressure of the handle 200 on the hand.

[0056] Optionally, combined Figures 1-8 See Figure 10 As shown, the distance between the adapter shafts 230 on both sides of the deformation pre-reserved groove 201 along the front-rear direction W is the third dimension d3. The first dimension d1 is greater than the third dimension d3. This is so that the adapter shaft 230 can extend into the guide groove 115 from the head end 111 and the insertion part 110 can be inserted into the deformation pre-reserved groove 201.

[0057] The fourth dimension d4 is defined as the distance between the outer surfaces of the two side walls of the boss 120 along the front-rear direction W. The following exemplary comparison of the proportions and embodiments will illustrate other beneficial effects of this application.

[0058] Comparative Example

[0059] A first handle and a first upper shell are provided to form the first handle assembly structure. The parts of the first handle that are the same as those of the handle 200 described above, and the parts of the first upper shell that are the same as those of the upper shell 100 described above, will not be described again. The difference between the first handle assembly structure and the handle assembly structure 10 described above is that the first upper shell does not have a guide groove 115 and a tensioning part 114. In the first handle assembly structure, the insertion hole 113 is provided on the side wall of the boss 120 along the front-back direction.

[0060] In addition, the third dimension d3 of the first handle is 119mm, and the fourth dimension d4 of the boss 120 of the first upper shell is 132.9mm.

[0061] As mentioned above, since the fourth dimension d4 of the boss 120 of the first upper shell is 132.9mm, in order for the boss 120 to be accommodated between the adapter shafts 230 on both sides of the deformation reserved groove 201, the third dimension d3 needs to be expanded from 119mm to 132.9mm, that is, the deformation reserved groove 201 needs to be expanded by at least 13.9mm.

[0062] Example

[0063] A second handle and a second upper shell are provided to form the second handle assembly structure. The second handle is the same as the handle 200 described above, and the first upper shell is the same as the upper shell 100 described above. That is, the second handle assembly structure is the same as the handle assembly structure 10 described above.

[0064] Furthermore, the third dimension d3 of the second handle is 119mm, and the fourth dimension d4 of the boss 120 of the second upper shell is 132.9mm. The first dimension d1 of the tensioning part 114 of the second upper shell is 118.25mm, and the second dimension d2 of the tensioning part 114 of the second upper shell is 127.9mm.

[0065] As described above, when the insertion part 110 is inserted into the deformation reserved groove 201 and the adapter shaft 230 extends into the guide groove 115 and slides toward the insertion hole 113, in order for the adapter shaft 230 to slide to the insertion hole 113, the third dimension d3 needs to be expanded from 119mm to 127.9mm, that is, the deformation reserved groove 201 needs to be expanded by 8.9mm.

[0066] Comparing the comparative examples and embodiments, it can be seen that the distance that the deformation pre-reserved groove 201 needs to be stretched during assembly of the second handle assembly structure, such as 8.9 mm, is significantly smaller than the distance that the deformation pre-reserved groove 201 needs to be stretched during assembly of the first handle assembly structure, such as 13.9 mm. Obviously, the second handle assembly structure requires less effort during assembly or is less likely to cause the handle to break due to excessive stretching of the deformation pre-reserved groove 201.

[0067] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A handle assembly structure for a lithium battery, characterized in that, The handle assembly structure includes: The upper shell is provided with a plug-in portion, which has a head end and a tail end; guide grooves are provided on both sides of the plug-in portion; the portion of the plug-in portion located between the guide grooves forms a tensioning portion, and the portions of the tensioning portion located at the tail end are provided with insertion holes; the guide grooves connect the insertion holes and the head end; The handle is provided with a deformation reserved groove, and the two side walls of the deformation reserved groove are provided with a transition shaft protruding into the deformation reserved groove; The insertion part is inserted into the deformation reserved groove; the adapter shaft is slidably disposed in the guide groove so as to slide toward the insertion hole; the deformation reserved groove is configured to be gradually expanded by the adapter shaft abutting the tensioning part when the adapter shaft slides toward the insertion hole and to retract when the adapter shaft slides to the insertion hole, so that the adapter shaft can be rotatably inserted into the insertion hole.

2. The handle assembly structure according to claim 1, characterized in that, A boss is provided in the middle of the upper shell, and a recess is provided around the boss in the upper shell; the upper surface of the recess and the outer periphery of the boss form a storage groove. The two handles are respectively disposed at both ends of the boss in the left-right direction, and the deformation reserved groove is disposed at the end of the handle facing the boss; the plug-in part is formed at both ends of the boss in the left-right direction, the head end is the end of the plug-in part facing the handle, and the tail end is the end of the plug-in part away from the handle. The guide groove is provided on the outer side of the boss; from the head end to the tail end, the size of the tensioning part gradually increases along the axial direction of the adapter shaft, so as to gradually expand the deformation reserved groove when the adapter shaft slides into the insertion hole; when the adapter shaft is inserted into the insertion hole, the handle can be stored in the storage groove and the handle can rotate around the insertion hole to be released from the storage groove.

3. The handle assembly structure according to claim 2, characterized in that, The guide groove is formed by at least an abutment surface and two guide blocks. The abutment surface is formed on the side of the tensioning part and is used to abut the adapter shaft. The two guide blocks are respectively protruding from the side of the tensioning part and are used to guide the adapter shaft to slide in the guide groove.

4. The handle assembly structure according to claim 2, characterized in that, The first dimension is the front-to-back dimension of the end of the tensioning part facing the handle, and the second dimension is the front-to-back dimension of the end of the tensioning part adjacent to the insertion hole; the difference between the second dimension and the first dimension is 5.0mm~13.0mm.

5. The handle assembly structure according to claim 2, characterized in that, The handle includes a lifting handle and two connecting arms; the lifting handle and the two connecting arms are arranged to form the deformation reserved groove. The handle is located at the end of the deformation reserved groove away from the insertion part; the two connecting arms are respectively formed as the two side walls of the deformation reserved groove arranged in the front-back direction; the adapter shaft protrudes from the end of the connecting arm away from the handle and protrudes into the deformation reserved groove.

6. The handle assembly structure according to claim 5, characterized in that, The handle includes a locking hook; the locking hook is disposed on the adapter shaft and spaced apart from the connecting arm; Specifically, when the handle is stored in the storage slot, the locking hook avoids the side wall of the insertion hole so that the adapter shaft can be driven out of the insertion hole when the deformation reserved slot is opened; when the handle is released from the storage slot, the locking hook hooks onto the side wall of the insertion hole to prevent the adapter shaft from exiting the insertion hole.

7. The handle assembly structure according to claim 5, characterized in that, The lifting handle includes: The flat portion is spaced apart from the recessed platform when the handle is stored in the storage slot, so as to form a clearance space between the recessed platform and the flat portion; The first upright plate is disposed on one side of the flat portion near the deformation reserved groove. The flat portion has a first side, which faces the recess when the handle is stored in the storage groove. The first upright plate extends to the first side. The first upright plate is located between the two connecting arms, and the two ends of the first upright plate are respectively connected to the two connecting arms in the front-back direction; a clearance groove is provided on the side of the first upright plate away from the flat part.

8. The handle assembly structure according to claim 7, characterized in that, The bottom wall of the clearance groove is provided with a partition block protruding so that the bottom wall of the clearance groove forms a plurality of first sub-grooves.

9. The handle assembly structure according to claim 7, characterized in that, The connecting arm extends toward the first side, and when the handle is stored in the storage slot, the connecting arm abuts against the recessed platform; The connecting arm has a strip groove on one side that abuts against the recessed platform; the strip groove connects to the side of the first upright plate that is away from the deformation reserved groove and extends towards the end of the connecting arm away from the flat part; multiple partitions are provided in the strip groove, and the partitions are respectively connected to the bottom wall of the strip groove and the two side walls of the strip groove; when the handle is stored in the storage slot, the multiple partitions are arranged in the left-right direction; a mesh rib is provided on the first side of the flat part, and the mesh rib is respectively connected to the first upright plate and the connecting arm.

10. The handle assembly structure according to claim 9, characterized in that, The connecting arm includes a first side plate portion and a second side plate portion, wherein the first side plate portion and the second side plate portion are respectively the two side walls of the strip groove along the front-back direction; In the connecting arm, the second side plate portion is located on the side of the first side plate portion away from the deformation reserved groove; the first upright plate portion is connected to the first side plate portions of the two connecting arms respectively; The bottom wall of the clearance groove is provided with a partition block to form a plurality of first sub-grooves; the handle includes a second upright plate; the second upright plate is located on the side of the first upright plate away from the deformation reserved groove and is respectively connected to the second side plate of the two connecting arms; the second upright plate is provided with a second sub-groove corresponding to the first sub-groove.

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