Label display assembly

Abstract

The label display assembly comprises a C-shaped piece arranged on a goods shelf and an installation strip located on the front side of the C-shaped piece, the installation strip comprises a first panel and a second panel located on the rear side of the first panel, the lower end of the first panel and the lower end of the second panel are connected to form a label groove with an upward opening, a clamping hook is arranged at one end of the second panel, and a clamping groove is formed in the other end of the second panel. A sliding guide part is arranged at the position, close to the clamping hook, of the back face of the second panel and provided with an inclined face, the same end of the C-shaped part slides into the area between the clamping hook and the sliding guide part through guiding of the inclined face so that the clamping hook can be buckled to the C-shaped part, blind operation can be achieved, installation is convenient and fast, dislocation cannot occur, and therefore the installation efficiency can be improved; the end, away from the second panel, of the clamping hook extends to form a pressing part tightly attached to the back face of the C-shaped piece, one end of the C-shaped piece is wrapped, and the situation that the installed installation strip is prone to falling off can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of shelves, in particular to a label display component. Background Art

[0002] The existing shelves on the market generally have label slots, which are used to prevent labels such as price strips, but the size of this label slot is fixed, and can only hold labels smaller than the slot size, and is not suitable for labels of different sizes. Chinese utility model patent CN219997761U discloses a detachable shelf sign assembly that can improve versatility. The assembly includes a first price strip mounting block and a second price strip mounting block. The second price strip mounting block is detachably mounted on the first price strip mounting block. In this way, when the second price strip mounting block is removed, the first price strip mounting block can be used as a traditional price strip, and a traditional price strip piece is inserted, while the second price strip mounting block can be used to install a specially customized price strip piece. In this way, there is no need to use a different shelf for each price strip, and only the second price strip mounting block is needed, which has strong versatility.

[0003] However, when installing the second price strip mounting block, it is necessary to first align the buckle position at the upper end of the second price strip mounting block with the upper side of the C-slot of the first price strip mounting block, and then align the buckle position at the lower end of the second price strip mounting block with the lower side of the C-slot of the first price strip mounting block and buckle it in. Due to its small size, it is necessary to align very accurately during installation, otherwise misalignment will occur. During use, it often takes several alignments to achieve complete engagement, affecting the efficiency of installation. In addition, the second price strip mounting block has relatively low firmness and stability after installation. In the terminal market with large traffic flow and changeable and complex situations, the second price strip mounting block is often moved and pulled by customers, causing the second price strip mounting block to fall off. It is also time-consuming and laborious to install the second price strip mounting block again after it falls off. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model proposes a label display assembly that can achieve blind operation, is easy to install, and will not be misplaced, thereby improving the efficiency of installation and will not fall off easily after installation.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A label display assembly comprises a C-shaped member arranged on a shelf and a mounting strip located in front of the C-shaped member, the mounting strip comprising a first panel and a second panel located behind the first panel, the lower end of the first panel and the lower end of the second panel are connected to form a label slot opening upward, a hook is provided at one end of the second panel, a guide slide is provided on the back side of the second panel near the hook, the guide slide has an inclined surface, the same end of the C-shaped member slides into the area between the hook and the guide slide through the guidance of the inclined surface so that the hook is buckled on the C-shaped member, and the hook extends away from the end of the second panel to form a pressing portion tightly attached to the back side of the C-shaped member.

[0007] Preferably, a locking piece is provided on the back side of the second panel at a position away from the hook, and the locking piece is engaged with the end face of the C-shaped piece away from the hook.

[0008] Preferably, the locking member extends to the inner side of the end of the C-shaped member away from the hook, and a side of the locking member away from the hook abuts against an inner side surface of the end of the C-shaped member away from the hook.

[0009] Preferably, the cross section of the hook is arc-shaped, and the inner arc surface of the hook is in close contact with the top surface or the bottom surface of the C-shaped member.

[0010] Preferably, the cross section of the hook is in a "ㄇ" shape, and the inner wall surface of the hook is in point contact with the top surface or the bottom surface of the C-shaped member.

[0011] Preferably, a support member is provided in the middle of the back side of the second panel, and one end of the support member away from the second panel abuts against the front side of the C-shaped member;

[0012] One end of the C-shaped member that buckles with the hook is a buckle end, and a gap is formed between the free end of the support member and the pressing portion for the buckle end of the C-shaped member to pass through.

[0013] Preferably, the support member is located at a position higher than the free end of the pressing portion.

[0014] Preferably, one end of the guide member away from the second panel is inclined toward the inner wall surface of the hook to form an inclined portion, and the inclined surface is located on a side of the inclined portion away from the second panel.

[0015] Preferably, one end of the guide member away from the second panel is inclined in a direction away from the inner side surface of the hook to form a lower hook portion, and the inclined surface is located on a side of the lower hook portion away from the second panel.

[0016] Preferably, one end of the C-shaped piece that buckles with the hook is a buckle end, and the inclined surface is parallel to the outer side surface of the buckle end.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] (1) The label display component includes a C-shaped part and a mounting strip located on the front side of the C-shaped part. One end of the mounting strip is provided with a hook and a guide slide with an inclined surface. Since the same end of the C-shaped part can be guided by the inclined surface into the area between the hook and the guide slide so that the hook is buckled on the C-shaped part, the C-shaped part and the hook are only connected by buckling at one end. When in use, the hook can be placed on the same end of the C-shaped part from top to bottom or from bottom to top, and it can be directly aligned, and then pressed down or up to make the same end of the C-shaped part slide along the inclined surface of the guide slide into the area between the hook and the guide slide, so as to realize the buckling of the hook and the C-shaped part, so that the mounting strip can be installed blindly, the installation is convenient, there is no misalignment, and the installation time can be saved.

[0019] (2) After the hook is locked with the C-shaped member, one end of the C-shaped member is restricted in the area between the hook and the guide member, and the end of the hook away from the second panel extends to form a pressing portion that is closely attached to the back of the C-shaped member, wrapping one end of the C-shaped member, thereby preventing the installation strip from falling off easily after installation;

[0020] (3) The C-shaped part and the mounting strip are single-end buckles, so there is less restriction on the size of the mounting strip, which can improve the versatility and compatibility of the mounting strip and adapt to mounting strips of different sizes. Even if there is a deviation in the processing size, it can still be installed compatibly, thereby improving the fault tolerance rate and, to a certain extent, improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the explosion structure of the first embodiment of the utility model;

[0023] Figure 3 for Figure 2 A is an enlarged schematic diagram;

[0024] Figure 4 This is an assembly diagram of the C-shaped member and the mounting strip in the first embodiment of the present utility model;

[0025] Figure 5 This is an assembly diagram of the C-shaped member and the mounting strip in the second embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the installation strip in the second embodiment of the present utility model;

[0027] Figure 7 This is an assembly diagram of the C-shaped member and the mounting strip in the third embodiment of the present utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the installation strip in the third embodiment of the present utility model;

[0029] Fig. 9 This is an assembly diagram of the C-shaped member and the mounting strip in the fourth embodiment of the present utility model;

[0030] Fig.10 This is a schematic diagram of the structure of the mounting strip in the fourth embodiment of the present utility model;

[0031] Fig.11 This is an assembly diagram of the C-shaped member and the mounting strip in the fifth embodiment of the present utility model;

[0032] Fig.12 It is a schematic diagram of the structure of the mounting strip in the fifth embodiment of the present utility model.

[0033] Figure ID:

[0034] 1-C-shaped member; 11-back of C-shaped member; 12-front of C-shaped member; 13-inner side of buckle end; 2-mounting strip; 21-first panel; 22-second panel; 23-label slot; 24-hook; 241-pressing part; 242-inner arc surface; 25-sliding member; 251-inclined surface; 252-inclined part; 253-lower hook; 26-support member; 27-positioning member; 28-notch; 3-shelf. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Embodiment 1

[0037] See also Figures 1 to 4 The present embodiment provides a label display assembly, including a C-shaped member 1 arranged on a shelf 3 and a mounting strip 2 located on the front side of the C-shaped member 1, the mounting strip 2 including a first panel 21 and a second panel 22 located on the rear side of the first panel 21, the lower end of the first panel 21 and the lower end of the second panel 22 are connected to form a label slot 23 opening upward, the upper end of the second panel 22 is provided with a hook 24, the back side of the second panel 22 is provided with a guide slide 25 near the hook 24, the guide slide 25 has an inclined surface 251, the upper end of the C-shaped member 1 slides into the area between the hook 24 and the guide slide 25 through the guidance of the inclined surface 251 so that the hook 24 is buckled on the upper end of the C-shaped member 1, and the hook 24 extends from one end away from the second panel 22 to form a clamping portion 241 tightly attached to the back side 11 of the C-shaped member 1.

[0038] Since the upper end of the C-shaped member 1 can be guided by the inclined surface 251 to slide into the area between the hook 24 and the guide slide 25 so that the hook 24 is buckled in the upper end of the C-shaped member 1, the C-shaped member 1 and the hook 24 are only buckled at one end. When in use, the hook 24 at the upper end of the mounting strip 2 can be placed on the upper end of the C-shaped member 1 from top to bottom, and it can be directly aligned, and then pressed downward to make the upper end of the C-shaped member 1 slide along the inclined surface 251 of the guide slide 25 into the area between the hook 24 and the guide slide 25, so that the hook 24 and the upper end of the C-shaped member 1 can be buckled, so that the mounting strip 2 can be blindly operated during installation, and the installation is convenient and will not be misaligned, which can save installation time; at the same time, the C-shaped member 1 and the mounting strip 2 are single-end buckles, so the size restriction of the mounting strip 2 is relatively small, which can improve the versatility and compatibility of the mounting strip 2, and adapt to mounting strips 2 of different sizes. Even if there is a processing size deviation, it can be compatible with the installation, thereby improving the fault tolerance rate and improving the production efficiency to a certain extent.

[0039] In addition, after the hook 24 is buckled with the upper end of the C-shaped part 1, the upper end of the C-shaped part 1 is restricted in the area between the hook 24 and the guide slide 25, and the end of the hook 24 away from the second panel 22 extends to form a clamping portion 241 that is tightly attached to the back side 11 of the C-shaped part 1, wrapping the upper end of the C-shaped part 1, which can prevent the installation strip 2 from falling off easily after installation.

[0040] In this embodiment, if Figure 4 The cross-section of the hook 24 is arc-shaped, and the inner arc surface 242 of the hook 24 is in close contact with the top surface of the C-shaped member 1. Under this structure, the contact area between the inner arc surface 242 of the hook 24 and the top surface of the C-shaped member 1 is larger, which is beneficial to improving the buckle stability of the hook 24 and the C-shaped member 1.

[0041] In this embodiment, one end of the guide slide 25 away from the second panel 22 is inclined toward the inner wall surface of the hook 24 to form an inclined portion 252, and the inclined surface 251 is located on the side of the inclined portion 252 away from the second panel 22. The inclined portion is in an upper hook shape, and the inclined surface 251 is located on the inclined portion 252. When in use, the hook 24 at the upper end of the mounting strip 2 can be placed on the upper end of the C-shaped member 1 from top to bottom, and it can be directly aligned, and then pressed downward to make the upper end of the C-shaped member 1 slide along the inclined surface 251 into the area between the hook 24 and the guide slide 25, so that the hook 24 and the upper end of the C-shaped member 1 are buckled.

[0042] Preferably, one end of the C-shaped member 1 that is latched with the hook 24 is the latch end. In the present embodiment, the latch end is the upper end of the C-shaped member 1, and the inclined surface 251 is parallel to the outer side surface 13 of the latch end, so that when the latch end of the C-shaped member 1 slides in along the inclined surface 251, the outer side surface 13 of the latch end and the inclined surface 251 can fit together, which is conducive to the latch end of the C-shaped member 1 sliding more smoothly into the area between the hook 24 and the guide member 25.

[0043] Embodiment 2

[0044] See also Figure 5 and Figure 6 In this embodiment, different from the first embodiment, a retaining member 27 is provided at a position on the back of the second panel 22 away from the hook 24, and the retaining member 27 is engaged with the end face of the C-shaped member 1 away from the hook 24. The provision of the retaining member 27 enables the retaining member 27 to engage with the end face of the C-shaped member 1 away from the hook 24 after the hook 24 is engaged with the C-shaped member 1, so that the upper and lower ends of the mounting strip 2 are respectively engaged with the upper and lower ends of the C-shaped member 1, which is conducive to improving the stability of the mounting strip 2, further preventing the mounting strip 2 from falling off easily, and the retaining member 2 can play a role in prompting the mounting strip 2 to be installed in place. It should be noted that the retaining member 27 is engaged with the end face of the C-shaped member 1 away from the hook 24, and the retaining member 27 is located above the end face of the C-shaped member 1 away from the hook 24, which does not affect the blind operation of the hook 24. When in use, place the hook 24 at the upper end of the mounting strip 2 on the upper end of the C-shaped member 1 from top to bottom, so that it can be directly aligned, and then press downward to make the upper end of the C-shaped member 1 slide into the area between the hook 24 and the guide slide 25 along the inclined surface 251 of the guide slide 25, and at the same time, the locking member 27 is engaged with the end face of the C-shaped member 1 away from the hook 24, so as to realize the locking of the hook 24 and the upper end of the C-shaped member 1 and the locking member 27 and the lower end of the C-shaped member 1, so that the mounting strip 2 can be installed blindly, and the installation is convenient.

[0045] Embodiment 3

[0046] See also Figure 7 and Figure 8 Different from the first embodiment, the cross section of the hook 24 is in a "ㄇ" shape, and the inner wall surface of the hook 24 is in point contact with the top surface of the C-shaped member 1. Compared with the arc-shaped structure of the first embodiment, this structure has a smaller contact area with the hook 24.

[0047] Preferably, a support member 26 is provided in the middle of the back side of the second panel 22, and one end of the support member 26 away from the second panel 22 abuts against the front side 12 of the C-shaped member 1, and one end of the C-shaped member 1 that is locked with the hook 24 is a locking end, and a notch 28 is formed between the free end of the support member 26 and the pressing portion 241, through which the locking end of the C-shaped member 1 can pass. In order to further improve the stability of the mounting bar 2, the support member 26 is provided in this embodiment, so that the mounting bar 2 has more contact points with the C-shaped member 1, and the mounting bar 2 can be prevented from shaking. By forming a notch 28 through which the locking end of the C-shaped member 1 can pass between the free end of the support member 26 and the pressing portion 241, the upper end of the C-shaped member 1 passes through the notch 28, and the upper end top surface of the C-shaped member 1 has an inclined surface, which is conducive to the upper end of the C-shaped member 1 passing through the notch 28. When in use, place the support member 26 at the upper end of the mounting strip 2 on the upper end of the C-shaped member 1 from top to bottom, and align it directly. Then press downward so that the upper end of the C-shaped member 1 passes through the notch 28 and slides along the inclined surface 251 of the guide slide 25 into the area between the hook 24 and the guide slide 25, thereby realizing the snap fit between the hook 24 and the upper end of the C-shaped member 1.

[0048] Furthermore, the position of the support member 26 is higher than the position of the free end of the clamping portion 241, so that the free end of the support member 26 is higher than the free end of the clamping portion 241, and the angle a between the extension line of the support member 26 and the clamping portion 241 serves as a notch 28 for the buckle end of the C-shaped member 1 to pass through. The notch 28 is stepped, which is conducive to the passage of the upper end of the C-shaped member 1.

[0049] The guide slide 25 of this embodiment is different from that of the first embodiment. In this embodiment, the end of the guide slide 25 away from the second panel 22 is inclined in the direction away from the inner wall surface of the hook 24 to form a lower hook 253, and the inclined surface 251 is located on the side of the lower hook 253 away from the second panel 22. The lower hook 253 is in the shape of a lower hook, and the inclined surface 251 is located on the lower hook 253. When in use, the hook 24 at the upper end of the mounting strip 2 can be placed on the upper end of the C-shaped member 1 from top to bottom, and can be directly aligned, and then pressed downward to make the upper end of the C-shaped member 1 slide along the inclined surface 251 into the area between the hook 24 and the guide slide 25, so as to achieve the buckle between the hook 24 and the upper end of the C-shaped member 1.

[0050] Embodiment 4

[0051] See also Figures 9 and 10The present embodiment provides a label display assembly, including a C-shaped member 1 arranged on a shelf 3 and a mounting strip 2 located on the front side of the C-shaped member 1, the mounting strip 2 including a first panel 21 and a second panel 22 located on the rear side of the first panel 21, the lower end of the first panel 21 and the lower end of the second panel 22 are connected to form a label groove 23 with an opening facing upward, a hook 24 is provided at the lower end of the second panel 22, a guide slide 25 is provided on the back side of the second panel 22 near the hook 24, the guide slide 25 has an inclined surface 251, the lower end of the C-shaped member 1 slides into the area between the hook 24 and the guide slide 25 through the guidance of the inclined surface 251 so that the hook 24 is buckled at the lower end of the C-shaped member 1, and the hook 24 extends from one end away from the second panel 22 to form a pressing portion 241 that is tightly attached to the back side 11 of the C-shaped member 1.

[0052] What is different from the first embodiment is that the C-shaped member 1 and the mounting strip 2 of the first embodiment are buckled at the upper end, while the C-shaped member 1 and the mounting strip 2 of this embodiment are buckled at the lower end. Since the lower end of the C-shaped member 1 can be guided by the inclined surface 251 to slide into the area between the hook 24 and the guide slide 25 so that the hook 24 is buckled in the lower end of the C-shaped member 1, when in use, the hook 24 at the lower end of the mounting strip 2 can be placed on the lower end of the C-shaped member 1 from bottom to top, and it can be directly aligned, and then pressed upward to make the lower end of the C-shaped member 1 slide along the inclined surface 251 of the guide slide 25 into the area between the hook 24 and the guide slide 25, so that the hook 24 and the lower end of the C-shaped member 1 are buckled, so that the mounting strip 2 can be blindly operated during installation, and the installation is convenient and will not be misaligned, which can save installation time; at the same time, the C-shaped member 1 and the mounting strip 2 are single-end buckles, so the size restriction of the mounting strip 2 is relatively small, which can improve the versatility and compatibility of the mounting strip 2, and adapt to mounting strips 2 of different sizes. Even if there is a processing size deviation, it can be compatible with the installation, thereby improving the fault tolerance rate and improving the production efficiency to a certain extent.

[0053] In addition, after the hook 24 is buckled with the lower end of the C-shaped member 1, the lower end of the C-shaped member 1 is restricted in the area between the hook 24 and the guide slide 25, and the end of the hook 24 away from the second panel 22 extends to form a clamping portion 241 that is tightly attached to the back side 11 of the C-shaped member 1, wrapping the lower end of the C-shaped member 1, which can prevent the installation strip 2 from falling off easily after installation.

[0054] In this embodiment, the cross section of the hook 24 is arc-shaped, and the inner arc surface 242 of the hook 24 is in close contact with the bottom surface of the C-shaped member 1, so that the contact area between the inner arc surface 242 of the hook 24 and the bottom surface of the C-shaped member 1 is larger, which is conducive to improving the buckle stability of the hook 24 and the C-shaped member 1. In fact, the hook 24 can be a "ㄇ"-shaped hook 24 as shown in the third embodiment, and the inner wall surface of the hook 24 is in point contact with the bottom surface of the C-shaped member 1.

[0055] One end of the guide member 25 away from the second panel 22 is inclined toward the inner wall surface of the hook 24 to form an inclined portion 252 . The inclined surface 251 is located on a side of the inclined portion 252 away from the second panel 22 .

[0056] Furthermore, a retaining member 27 is provided at a position of the back of the second panel 22 away from the hook 24, and a side of the retaining member 27 away from the hook 24 abuts against an end face of the C-shaped member 1 away from the hook 24. The retaining member 27 is provided so that after the hook 24 is locked with the C-shaped member 1, the retaining member 27 abuts against the end face of the C-shaped member 1 away from the hook 24, which can play a role in prompting the installation strip 2 to be installed in place, and the upper and lower ends of the installation strip 2 are respectively in contact with the upper and lower ends of the C-shaped member 1, which is conducive to improving the stability of the installation strip 2 and further preventing the installation strip 2 from falling off easily.

[0057] Embodiment 5

[0058] See also Fig.11 and Fig.12 Different from the fourth embodiment, the locking member 27 extends to the inner side of the end of the C-shaped member 1 away from the hook 24, and the side of the locking member 27 away from the hook 24 abuts against the inner side surface of the end of the C-shaped member 1 away from the hook 24, so that the contact area between the locking member 27 and the C-shaped member 1 is larger, which is beneficial to improve the buckle stability of the C-shaped member 1 and the locking member 27, and thus improve the stability of the mounting strip 2.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A label display component, characterized in that: The invention relates to a shelf (3) comprising a C-shaped member (1) arranged on the shelf (3) and a mounting strip (2) located in front of the C-shaped member (1); the mounting strip (2) comprises a first panel (21) and a second panel (22) located behind the first panel (21); the lower end of the first panel (21) and the lower end of the second panel (22) are connected to form a label slot (23) with an opening facing upward; one end of the second panel (22) is provided with a hook (24); the back of the second panel (22) is close to the hook (24). A guide slide (25) is provided at the position of the hook (24), and the guide slide (25) has an inclined surface (251). The same end of the C-shaped member (1) slides into the area between the hook (24) and the guide slide (25) through the guidance of the inclined surface (251) so that the hook (24) is buckled on the C-shaped member (1). The end of the hook (24) away from the second panel (22) extends to form a pressing portion (241) tightly attached to the back side (11) of the C-shaped member (1).

2. The label display assembly according to claim 1, characterized in that: A locking member (27) is provided at a position on the back side of the second panel (22) away from the locking hook (24), and the locking member (27) is locked with an end face of the C-shaped member (1) away from the locking hook (24).

3. The label display assembly according to claim 2, characterized in that: The retaining member (27) extends to the inner side of the end of the C-shaped member (1) away from the hook (24), and a side of the retaining member (27) away from the hook (24) abuts against an inner side surface of the end of the C-shaped member (1) away from the hook (24).

4. The label display assembly according to claim 1, characterized in that: The cross section of the hook (24) is in the shape of an arc, and the inner arc surface (242) of the hook (24) is in close contact with the top surface or the bottom surface of the C-shaped component (1).

5. The label display assembly according to claim 1, characterized in that: The cross section of the hook (24) is in a "ㄇ" shape, and the inner wall surface of the hook (24) is in point contact with the top surface or the bottom surface of the C-shaped member (1).

6. The label display assembly according to claim 5, characterized in that: A support member (26) is provided in the middle of the back side of the second panel (22), and one end of the support member (26) away from the second panel (22) abuts against the front side (12) of the C-shaped member (1); One end of the C-shaped member (1) that is locked with the hook (24) is a locking end, and a notch (28) is formed between the free end of the support member (26) and the pressing portion (241) through which the locking end of the C-shaped member (1) can pass.

7. The label display assembly according to claim 6, characterized in that: The support member (26) is located at a position higher than the free end of the pressing portion (241).

8. The label display assembly according to claim 1, characterized in that: One end of the guide member (25) away from the second panel (22) is inclined toward the inner wall surface of the hook (24) to form an inclined portion (252), and the inclined surface (251) is located on a side of the inclined portion (252) away from the second panel (22).

9. The label display assembly according to claim 1, characterized in that: One end of the guide member (25) away from the second panel (22) is inclined in a direction away from the inner side surface of the hook (24) to form a lower hook portion (253), and the inclined surface (251) is located on a side of the lower hook portion (253) away from the second panel (22).

10. The label display assembly according to any one of claims 1 to 9, characterized in that: One end of the C-shaped piece (1) that is locked with the hook (24) is a locking end, and the inclined surface (251) is parallel to the outer side surface (13) of the locking end.

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