Saw blade packaging connecting piece

Abstract

The utility model discloses a saw blade packaging connecting piece, which belongs to the technical field of tool packaging, and comprises an outer connecting piece and an inner connecting piece, the outer connecting piece comprises an outer cylinder wall with a hollow structure inside, one end of the outer cylinder wall is provided with a front limiting part, and the front limiting part is provided with at least two open slots; the other end of the outer cylinder wall or the inner connecting piece is provided with a rear limiting part; the inner connecting piece comprises an inner cylinder wall capable of being inserted into the outer cylinder wall, and a locking structure for preventing the inner cylinder wall and the outer connecting piece from being separated is further arranged between the inner cylinder wall and the outer connecting piece. When the packaging connecting piece is in a locked state, the outer barrel wall is inserted into the inner hole of the saw blade, the inner barrel wall is inserted into the outer barrel wall, and the front limiting part and the rear limiting part are located on the two sides of the saw blade packaging box correspondingly. According to the packing mode, the outer packing box can be fixed outside the saw blade only by fixing the position of the center hole of the saw blade, and the packing box can be extruded and fixed outside the rear limiting part and the front limiting part respectively, so that the saw blade is prevented from shaking relative to the packing box.

Description

Technical Field

[0001] The utility model relates to a saw blade packaging connector, belonging to the technical field of cutting tool packaging and suspension. Background Art

[0002] When the saw blade is sold at retail, it needs to be displayed on the shelf in a hanging form. Since the edge of the saw blade has saw teeth, in order to avoid scratching the user and protect the saw teeth, it needs to be packaged in a paper box or plastic. In the prior art, the saw blade is usually packaged in a way of plastic combined with cardboard, or in a cardboard alone. The above packaging is fixed on the outer edge of the saw blade. Considering the cost and packaging process, the above packaging method will produce a certain gap between the outer edge of the saw blade and the packaging box. As a result, the saw blade will shake relative to the packaging box, especially during transportation, which may damage the packaging box. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the purpose of the utility model is to provide a packaging connector that can be positioned through the center hole of a saw blade.

[0004] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0005] A saw blade packaging connector, comprising an outer connector and an inner connector, wherein the outer connector comprises an outer cylinder wall with a hollow structure inside, one end of the outer cylinder wall is provided with a front limit portion, and the front limit portion is provided with at least two opening grooves;

[0006] The other end of the outer cylinder wall or the inner connecting piece is provided with a rear limit portion;

[0007] The inner connecting piece includes an inner cylinder wall that can be inserted into the inner cylinder wall, and a locking structure is provided between the inner cylinder wall and the outer connecting piece to prevent the two from being separated;

[0008] When the packaging connector is in a locked state, the outer cylinder wall is inserted into the inner hole of the saw blade, the inner cylinder wall is inserted into the interior of the outer cylinder wall, and the front limit portion and the rear limit portion are respectively located on both sides of the saw blade packaging box.

[0009] Preferably, in the aforementioned saw blade packaging connector, the rear limiting portion includes an inner rear limiting portion located at the end of the outer cylinder wall and an outer rear limiting portion located at one end of the inner cylinder wall. When the inner cylinder wall is inserted into the interior of the outer cylinder wall, the outer rear limiting portion covers the inner rear limiting portion.

[0010] Preferably, in the aforementioned saw blade packaging connector, an intermediate connector is provided between the outer connector and the inner connector, and the outer connector, the inner connector and the intermediate connector are an integrally molded plastic structure.

[0011] Preferably, in the aforementioned saw blade packaging connector, the opening groove extends to the outer cylinder wall.

[0012] Preferably, in the aforementioned saw blade packaging connector, the outside of the outer cylinder wall is provided with at least three axially arranged ribs.

[0013] Preferably, in the aforementioned saw blade packaging connector, the locking structure includes an inner limit portion located inside the outer cylinder wall and a snap-fit ​​convex ring located on the outer surface of the inner cylinder wall, and when the inner cylinder wall is inserted into the interior of the outer cylinder wall, the snap-fit ​​convex ring cooperates with the inner limit portion.

[0014] Preferably, in the aforementioned saw blade packaging connector, the end of the front limiting portion is also provided with an outer bevel surface for facilitating insertion into the inner hole of the saw blade.

[0015] Preferably, the aforementioned saw blade packaging connector is further provided with a hollow hole outside the rear limiting portion.

[0016] Preferably, in the aforementioned saw blade packaging connector, one end of the inner limit portion is further provided with an inclined surface for facilitating the passing of the snap-fit ​​convex ring.

[0017] Preferably, in the aforementioned saw blade packaging connector, the opening groove extends to the inner limit portion.

[0018] Beneficial effects achieved by the utility model:

[0019] Compared with the prior art, the utility model provides a new saw blade packaging method. This packaging method can fix the outer packaging box on the outside of the saw blade only by fixing the center hole position of the saw blade. The rear limit part and the front limit part located on both sides of the packaging box can squeeze and fix the packaging box respectively to prevent the saw blade from shaking relative to the packaging box.

[0020] On the other hand, since it is fixed to the packaging box through the center hole of the saw blade, the outer edge of the packaging box does not need to be completely closed, and only one side and two sides need to be connected. In this way, the outer packaging box only needs one piece of cardboard, which saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a packaging state diagram of the saw blade body and the outer packaging box of the utility model;

[0022] Figure 2 It is a diagram of the expanded state of the utility model;

[0023] Figure 3 It is a partial cross-sectional view of the packaging state of the utility model;

[0024] Figure 4 It is a cross-sectional view of the utility model in an expanded state;

[0025] Figure 5 This is the main view of the utility model in the unfolded state Figure 1 (four claws);

[0026] Figure 6 This is the main view of the utility model in the unfolded state Figure 1 (three claws);

[0027] The meanings of the reference numerals in the figure are as follows: 1-external connecting member; 2-internal connecting member; 3-middle connecting member; 4-saw blade body; 5-external packaging box; 11-external cylinder wall; 111-convex rib; 12-front limiting part; 121-external inclined surface; 122-opening groove; 13-inside the rear limiting part; 14-inner limiting part; 21-inner cylinder wall; 22-outside the rear limiting part; 221-hollow hole; 23-clamping convex ring; 51-hanging hole. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0029] like Figures 1 to 4 As shown: This embodiment discloses a saw blade packaging connector, which can fix the outer packaging box 5 together through the inner hole of the saw blade body 4. Specifically, it includes an outer connector 1 and an inner connector 2. The outer connector 1 includes an outer cylinder wall 11 with a hollow structure inside. One end of the outer cylinder wall 11 is provided with a front limit portion 12. The front limit portion 12 is provided with at least two opening grooves 122. The opening grooves 122 are used to enable the front limit portion 12 to have a certain inward contraction function. The bottom of the opening groove 122 is an arc-shaped structure, which usually extends to the part of the outer cylinder wall 11. In practical applications, the number of the opening grooves 122 is preferably four or three, and they are evenly distributed. The opening grooves 122 usually extend to the outer cylinder wall 11.

[0030] The end of the front stopper 12 is also provided with an outer bevel 121 for easy insertion into the inner hole of the saw blade. The size of the outer bevel 121 at the minimum outer diameter is smaller than the diameter of the inner hole of the packaged saw blade, so that it is easy to insert into the inner hole of the saw blade body 4. The outer bevel 121 can also be called a claw, which is locked apart by the opening groove 122. Figure 5 The number of claws in the is 4. Figure 6 The number of claws in the is 3, Figure 5 and Figure 6 This is a commonly used implementation method in practical applications.

[0031] The other end of the outer tube wall 11 or the inner connecting member 2 is provided with a rear limit portion; the rear limit portion cooperates with the front limit portion 12 and is located on both sides of the outer packaging box 5 after packaging is completed, playing a role of limiting and fixing.

[0032] Specifically, the inner connecting member 2 includes an inner cylinder wall 21 that can be inserted into the outer cylinder wall 11 , and a locking structure is provided between the inner cylinder wall 21 and the outer connecting member 1 to prevent the two (the outer connecting member 1 and the inner connecting member 2 ) from being separated.

[0033] When the packaging connector is in the locked state, the outer tube wall 11 is inserted into the inner hole of the saw blade, the inner tube wall 21 is inserted into the inner part of the outer tube wall 11, and the front limit part 12 and the rear limit part are respectively located on both sides of the outer packaging box 5, so as to realize the compression and fixation of the packaging box 5. In this embodiment, the outer packaging box 5 is usually a cardboard or hard plastic board, and there is usually a hanging hole 51 on its outer edge. The two sides of the outer packaging box 5 (the two sides of the saw blade body 4 after packaging) only need to pass through a section ( Figure 1 ) can be connected, so that the entire outer packaging box 5 is a piece of cardboard, and the cost can be made very low.

[0034] The rear limit portion includes a rear limit portion inner portion 13 located at the end of the outer cylinder wall 11 and a rear limit portion outer portion 22 located at one end of the inner cylinder wall 21. The rear limit portion outer portion 22 is a hollow outer flange structure with a relatively large diameter. When the inner cylinder wall 21 is inserted into the inner part of the outer cylinder wall 11, the rear limit portion outer portion 22 covers the rear limit portion inner portion 13. The rear limit portion outer portion 22 is also provided with a hollow hole 221, which can be used to save materials.

[0035] The locking structure is to prevent the inner cylinder wall 21 from being separated from the outer cylinder wall 11 when the inner cylinder wall 21 is inserted into the inner part of the outer cylinder wall 11. The locking structure in this embodiment includes an inner limit portion 14 located inside the outer cylinder wall 11 and a snap-on convex ring 23 located on the outer surface of the inner cylinder wall 21. When the inner cylinder wall 21 is inserted into the inner part of the outer cylinder wall 11, the snap-on convex ring 23 cooperates with the inner limit portion 14. One end of the inner limit portion 14 is also provided with an inclined surface for facilitating the passing of the snap-on convex ring 23. The inclined surface can refer to the outer inclined surface 121 in this embodiment. When the snap-on convex ring 23 passes through the inner limit portion 14, the inclined surfaces of the front ends of the two cooperate, so that the snap-on convex ring 23 can pass through the inner limit portion 14 more easily. In order to achieve the expansion of the outer diameter of the inner limit portion 14 during the above-mentioned passing process, the aforementioned opening groove 122 is preferably able to extend to the inner limit portion 14.

[0036] An intermediate connecting member 3 is further provided between the outer connecting member 1 and the inner connecting member 2. The intermediate connecting member 3 is a flexible connecting sheet. The outer connecting member 1, the inner connecting member 2 and the intermediate connecting member 3 are an integrally formed plastic structure.

[0037] The outer wall 11 is provided with at least three axially arranged ribs 111. The ribs 111 are used to reduce the wear between the outer wall 11 and the inner hole of the saw blade body 4, and also to improve the packing tightness between the outer wall 11 and the inner hole of the saw blade body 4.

[0038] When there is no packaging, Figure 2 and Figure 4 As shown, this embodiment is in an unfolded state, and the outer connecting member 1 and the inner connecting member 2 are connected by the intermediate connecting member 3. When the saw blade body 4 is fixed inside or on one side of the outer packaging box 5, the front limiting portion 12 is first passed through the inner hole of the packaging box 5 and the saw blade. During the passing process, due to the presence of the opening groove 122, the front limiting portion 12 can move in the direction of the central axis. When the front limiting portion 12 passes through the inner hole of the saw blade body 4, under the action of its own elastic force, the front limiting portion 12 will expand outward to the initial state, and the inner edge of the front limiting portion 12 will clamp the saw blade or one side of the packaging box. At this time, the inner connecting member 2 is inserted into the inner part of the outer cylinder wall 11, and the clamping convex ring 23 passes through the inner limiting portion 14. In this way, the inner connecting member 2 is squeezed with the inner surface of the outer cylinder wall 11 to prevent the front limiting portion 12 from shrinking inward. On the other hand, the outer 22 of the rear limiting portion can also contact the outer packaging box 5 to achieve the extrusion and fixation of the outer packaging box 5.

[0039] Compared with the prior art, this embodiment provides a new saw blade packaging method. This packaging method only needs to fix the center hole position of the saw blade to fix the outer packaging box 5 on the outside of the saw blade. The rear limiter 22 and the front limiter 12 located on both sides of the packaging box 5 can respectively squeeze and fix the packaging box 5 to prevent the saw blade from shaking relative to the packaging box. On the other hand, since the saw blade is fixed to the packaging box 5 through the center hole of the saw blade, the outer edge of the packaging box does not need to be completely closed, and only one side (the packaging box on both sides of the saw blade) needs to be connected on both sides. In this way, the outer packaging box 5 only needs one piece of cardboard, which saves costs.

[0040] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A saw blade packaging connector, characterized in that: It comprises an external connecting member (1) and an internal connecting member (2), wherein the external connecting member (1) comprises an outer tube wall (11) with a hollow structure inside, a front limiting portion (12) is provided at one end of the outer tube wall (11), and the front limiting portion (12) is provided with at least two opening grooves (122); The other end of the outer cylinder wall (11) or the inner connecting piece (2) is provided with a rear limiting portion; The inner connecting member (2) comprises an inner cylindrical wall (21) which can be inserted into the inner part of the outer cylindrical wall (11), and a locking structure is provided between the inner cylindrical wall (21) and the outer connecting member (1) to prevent the two from being separated; When the packaging connector is in a locked state, the outer cylinder wall (11) is inserted into the inner hole of the saw blade, the inner cylinder wall (21) is inserted into the interior of the outer cylinder wall (11), and the front limit portion (12) and the rear limit portion are respectively located on both sides of the saw blade packaging box.

2. A saw blade packaging connector according to claim 1, characterized in that: The rear limiting portion comprises a rear limiting portion inner portion (13) located at the end of the outer cylinder wall (11) and a rear limiting portion outer portion (22) located at one end of the inner cylinder wall (21); when the inner cylinder wall (21) is inserted into the interior of the outer cylinder wall (11), the rear limiting portion outer portion (22) covers the rear limiting portion inner portion (13).

3. The saw blade packaging connector according to claim 1, characterized in that: An intermediate connecting piece (3) is also provided between the outer connecting piece (1) and the inner connecting piece (2); the outer connecting piece (1), the inner connecting piece (2) and the intermediate connecting piece (3) are integrally formed plastic structures.

4. The saw blade packaging connector according to claim 1, characterized in that: The opening groove (122) extends to the outer cylinder wall (11).

5. The saw blade packaging connector according to claim 1, characterized in that: At least three axially arranged convex ribs (111) are provided on the outside of the outer cylinder wall (11).

6. The saw blade packaging connector according to claim 1, characterized in that: The locking structure comprises an inner limiting portion (14) located inside the outer cylinder wall (11) and a snap-fitting convex ring (23) located on the outer surface of the inner cylinder wall (21); when the inner cylinder wall (21) is inserted into the interior of the outer cylinder wall (11), the snap-fitting convex ring (23) cooperates with the inner limiting portion (14).

7. The saw blade packaging connector according to claim 1, characterized in that: The end of the front limiting portion (12) is also provided with an outer inclined surface (121) for facilitating insertion into the inner hole of the saw blade.

8. The saw blade packaging connector according to claim 2, characterized in that: A hollow hole (221) is also provided outside the rear limiting portion (22).

9. The saw blade packaging connector according to claim 6, characterized in that: One end of the inner limiting portion (14) is also provided with an inclined surface for facilitating the passing of the clamping convex ring (23).

10. The saw blade packaging connector according to claim 9, characterized in that: The opening groove (122) extends to the inner limiting portion (14).

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