Combined telescopic pin shaft structure

Abstract

The utility model relates to the technical field of pin shafts, in particular to a combined telescopic pin shaft structure which comprises a pin shaft body, one end of the pin shaft body is connected with a rotating handle in a rotating mode, a screw rod is connected to the other end of the pin shaft body in an inserted mode, the screw rod is fixed to the surface of the rotating handle, and a screw sleeve is connected to a rod body of the screw rod in a sleeved and threaded mode. The screw sleeve is fixed to the surface of the extension handle, a preformed hole is formed in the surface of the extension handle, and a traction strip is inserted into the end, facing the pin shaft body, of the extension handle and fixed to the surface of the pin shaft body; the combined telescopic pin shaft structure has the beneficial effects that the screw sleeve can be driven to move on the screw rod by screwing the rotating handle, so that the telescopic adjustment of the length of the pin shaft is realized, the pin shaft can adapt to the connection requirements of different intervals through the design, and the use flexibility and adaptability of the pin shaft are improved; when the length of the pin shaft is adjusted, only the rotating handle needs to be screwed, special tools are not needed, operation is easy and convenient, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of pin shafts, in particular to a combined telescopic pin shaft structure. Background Art

[0002] In traditional mechanical connections, pins, as a common connecting element, are widely used in various mechanical structures.

[0003] However, conventional pins often have a fixed length and cannot be adjusted according to actual needs, which is particularly inconvenient in some situations where the mechanical structure spacing or connection length needs to be flexibly adjusted. In addition, conventional pins usually require special tools during installation and removal, which is complicated and inefficient. Utility Model Content

[0004] The purpose of the utility model is to provide a combined telescopic pin structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined retractable pin structure, including a pin body, one end of the pin body is rotatably connected to a rotating handle, the other end of the pin body is inserted with a screw, the screw is fixed to the surface of the rotating handle, and a threaded sleeve is threaded on the rod body of the screw, the threaded sleeve is fixed to the surface of an extension handle, a reserved hole is opened on the surface of the extension handle, a traction strip is inserted with one end of the extension handle facing the pin body, and the traction strip is fixed to the surface of the pin body.

[0006] Preferably, a limiting groove is provided at one end of the pin shaft body, and a through hole is provided at the other end of the pin shaft body, the through hole and the limiting groove are connected, the limiting groove is an "I"-shaped round hole, the rotating handle is an "I"-shaped round block, the rotating handle is rotatably connected in the limiting groove, and the thread sleeve is inserted into the inside of the through hole.

[0007] Preferably, a mounting groove is provided at one end of the rotating handle, and a screwing handle is fixed on the surface of the mounting groove.

[0008] The screw handle is in the shape of a cross.

[0009] Preferably, a slot is provided on one side of the extension handle facing the pin shaft body, two slots are provided, the two slots are symmetrically distributed about the wire sleeve, and the traction strip is inserted into the inside of the slot.

[0010] Preferably, the long side length of the traction strip is smaller than the long side length of the wire sleeve.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The combined retractable pin structure proposed in the utility model can drive the thread sleeve to move on the screw rod by rotating the rotating handle, so as to realize the telescopic adjustment of the pin length. This design enables the pin to adapt to the connection requirements of different spacings, thereby improving its flexibility and adaptability in use. When adjusting the length of the pin, it is only necessary to rotate the rotating handle without the aid of special tools. The operation is simple and convenient, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a side view of the structure of the utility model;

[0015] Figure 3 for Figure 2 Structural cross-section at AA in the middle;

[0016] Figure 4 This is a schematic diagram of the structure of the utility model after the extension handle is away from the pin body;

[0017] Figure 5 This is a schematic diagram of the pin body structure of the utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the extension handle of the utility model;

[0019] Figure 7 This is a schematic diagram of the connection structure of the rotating handle and the screw rod of the utility model.

[0020] In the figure: the pin body 1, the through hole 2, the limit groove 3, the rotating handle 4, the screw 5, the screw handle 6, the threaded sleeve 7, the extension handle 8, the reserved hole 9, the slot 10, the traction bar 11, and the installation groove 12. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit 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.

[0022] Embodiment 1

[0023] See also Figure 1-Figure 4The utility model provides a technical solution: a combined retractable pin structure, including a pin body 1, one end of the pin body 1 is rotatably connected to a rotating handle 4, the other end of the pin body 1 is plugged with a screw 5, the screw 5 is fixed on the surface of the rotating handle 4, and a threaded sleeve 7 is threaded on the rod body of the screw 5, the threaded sleeve 7 is fixed on the surface of an extension handle 8, a reserved hole 9 is opened on the surface of the extension handle 8, and a traction bar 11 is plugged into the end of the extension handle 8 facing the pin body 1, and the traction bar 11 is fixed on the surface of the pin body 1.

[0024] Embodiment 2

[0025] Refer to the attached Figures 5 to 7 As shown, on the basis of Example 1, in order to achieve the spacing adjustment between the extension handle 8 and the pin shaft body 1, a limiting groove 3 is opened at one end of the pin shaft body 1, and a through hole 2 is opened at the other end of the pin shaft body 1, the through hole 2 is connected with the limiting groove 3, the limiting groove 3 is an "I"-shaped round hole, the rotating handle 4 is an "I"-shaped round block, the rotating handle 4 is rotatably connected in the limiting groove 3, the silk sleeve 7 is inserted into the inside of the through hole 2, and an installation groove 12 is opened at one end of the rotating handle 4, and a screwing handle 6 is fixed on the surface of the installation groove 12, and the screwing handle 6 is a "cross"-shaped bar. A slot 10 is opened on the side of the extension handle 8 facing the pin shaft body 1, and two slots 10 are provided, and the two slots 10 are symmetrically distributed about the silk sleeve 7. The traction bar 11 is inserted into the inside of the slot 10, and the long side length of the traction bar 11 is less than the long side length of the silk sleeve 7.

[0026] When using, attach Figure 1 and Figure 3 The state diagram shown is when the distance between the extension handle 8 and the pin shaft body 1 is zero, that is, the entire pin shaft is at the shortest length at this time. When the length of the pin shaft needs to be adjusted, the screw handle 6 is pinched and twisted to rotate the rotating handle 4. The rotating handle 4 is limited by the limiting groove 3, and the rotating handle 4 can only rotate in the limiting groove 3, and the rotating handle 4 cannot be separated from the limiting groove 3. Therefore, during the rotation of the rotating handle 4, the rotating handle 4 drives the screw rod 5 to rotate synchronously; because the thread sleeve 7 and the screw rod 5 are screwed together, and the traction strip 11 at the end of the pin shaft body 1 is inserted in the slot 10 to limit the extension handle 8 from rotation, when the thread sleeve 7 is driven by the screw rod 5, the thread sleeve 7 translates along the perforation 2, and when the rotating handle 4 is rotated clockwise, the thread sleeve 7 is driven to translate toward the outside of the perforation 2, and when the rotating handle 4 is rotated counterclockwise, the thread sleeve 7 is driven to translate toward the inside of the perforation 2, thus completing the telescopic adjustment of the entire pin shaft length.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined retractable pin structure, comprising a pin body (1), characterized in that: One end of the pin shaft body (1) is rotatably connected to a rotating handle (4), and the other end of the pin shaft body (1) is plugged with a screw rod (5), which is fixed on the surface of the rotating handle (4), and a threaded sleeve (7) is threadedly sleeved on the rod body of the screw rod (5), which is fixed on the surface of an extension handle (8), and a reserved hole (9) is opened on the surface of the extension handle (8), and a traction bar (11) is plugged with one end of the extension handle (8) facing the pin shaft body (1), and the traction bar (11) is fixed on the surface of the pin shaft body (1).

2. A combined retractable pin structure according to claim 1, characterized in that: A limiting groove (3) is provided at one end of the pin shaft body (1), and a through hole (2) is provided at the other end of the pin shaft body (1). The through hole (2) and the limiting groove (3) are connected, the limiting groove (3) is an "I"-shaped round hole, the rotating handle (4) is an "I"-shaped round block, the rotating handle (4) is rotatably connected to the limiting groove (3), and the thread sleeve (7) is inserted into the inside of the through hole (2).

3. The combined retractable pin structure according to claim 1, characterized in that: One end of the rotating handle (4) is provided with a mounting groove (12), and a screwing handle (6) is fixed on the surface of the mounting groove (12), and the screwing handle (6) is in the shape of a "cross" bar.

4. The combined retractable pin structure according to claim 1, characterized in that: The extension handle (8) is provided with a slot (10) on one side facing the pin shaft body (1), and two slots (10) are provided. The two slots (10) are symmetrically distributed about the wire sleeve (7), and the traction strip (11) is inserted into the inside of the slot (10).

5. The combined retractable pin structure according to claim 1, characterized in that: The length of the long side of the traction strip (11) is smaller than the length of the long side of the wire sleeve (7).

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