Screw with detachable head and tail

Abstract

The utility model belongs to the technical field of screw rods, and particularly relates to a head and tail detachable screw rod which comprises a rod body. External threads are arranged on the surface of the rod body, the top of the rod body is movably connected with a connecting head part, the bottom of the rod body is movably connected with a connecting tail part, and internal threads are arranged in the connecting head part and the connecting tail part; through the arrangement of the external threads, the rod body can be connected with the connecting head part and the connecting tail part, so that the rod body can bear stronger outward pulling force, through the arrangement of the connecting head part and the connecting tail part, a user can conveniently assemble, disassemble and connect other parts, and when the rod body is damaged or needs to be replaced, only the head part and the tail part need to be disassembled, so that the rod body can be conveniently replaced. The whole screw rod does not need to be disassembled, so that time and cost are saved, the internal thread can be matched with the external thread of the rod body, and a user can rotate to tighten or loosen the screw rod to realize connection and disassembly.

Description

Technical Field

[0001] The utility model relates to the technical field of screw rods, in particular to a screw rod with a detachable head and a detachable tail. Background Art

[0002] Currently, only the head of the screw on the market can be disassembled. When the screw is damaged or needs to be replaced, the entire screw body needs to be disassembled, which is inconvenient for repair and replacement, and increases time and cost.

[0003] For example, a screw rod with publication number CN213206266U includes a connecting head and a rod portion connected to the bottom of the connecting head, characterized in that: inclined surfaces are provided on both sides of the upper end of the connecting head, a through groove penetrating the inclined surfaces is provided on one side of the connecting head, a first texture portion is provided on the side wall of the through groove, the first texture portion is a continuous strip-shaped depression, a second texture portion is provided at the bottom of the through groove, the second texture portion is a continuous corrugated shape, a through hole is provided in the connecting head, a sealing ring is clamped in the through hole, a plurality of protrusions are provided on the outer side of the sealing ring along the circumferential direction of the outer wall of the sealing ring and arranged at intervals, a first clamping groove is provided on the inner wall of the through hole for clamping the sealing ring, and a second clamping groove is provided in the first clamping groove for clamping the protrusion, thereby providing a screw rod with high connection and fastening, easy use and easy production.

[0004] However, according to the working principle proposed in the above patent, the applicant believes that although the above screw rod can be connected and tightened to a certain extent, in actual use, the above screw rod has no detachable head and tail, and cannot be easily assembled and disassembled.

[0005] Therefore, in order to solve the above problems, a screw with a detachable head and tail is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is that: the prior art has the disadvantage that the head and the tail are not detachable, so we propose a screw with a detachable head and a detachable tail.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a screw rod with a detachable head and tail, comprising a rod body; the surface of the rod body is provided with an external thread, the top of the rod body is movably connected with a connecting head, the bottom of the rod body is movably connected with a connecting tail, and the insides of the connecting head and the connecting tail are both provided with internal threads.

[0008] Preferably, a first fixing hole is provided on the front side of the connecting head portion and the connecting tail portion, and a second fixing hole is provided on the front side of the rod body.

[0009] Preferably, the second fixing hole is located between the external threads, and the second fixing hole is the same size as the first fixing hole.

[0010] Preferably, connection blocks are fixedly mounted on the outer sides of the connection head and the connection tail, and connection rings are fixedly mounted on the outer sides of the connection blocks.

[0011] Preferably, a mounting groove is provided on the inner side of the connecting ring, and a sealing ring is fixedly installed inside the mounting groove.

[0012] Preferably, a clamping block is fixedly mounted on the outer side of the sealing ring, and the clamping block is mounted inside the mounting groove.

[0013] Preferably, a screw is movably mounted on the front side of the first fixing hole, the screw passes through the rod body, the connecting head and the connecting tail, and a nut is movably connected to the surface of the screw.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model can be connected with the connecting head and the connecting tail through the setting of the external thread, so that the rod body can withstand stronger outward pulling force. The setting of the connecting head and the connecting tail can facilitate the user to assemble and disassemble and connect other parts. When the rod body is damaged or needs to be replaced, only the head and the tail need to be disassembled, and there is no need to disassemble the entire screw rod, thereby saving time and cost. The setting of the internal thread can match the external thread of the rod body, and the user can rotate to tighten or loosen to achieve connection and disassembly;

[0016] 2. The utility model can adjust the positions of the connecting head and the connecting tail on the rod body through the provision of the first fixing hole and the second fixing hole, facilitate the installation of the connecting ring through the provision of the connecting block, facilitate the connection with other parts through the provision of the connecting ring, facilitate the installation of the sealing ring through the provision of the mounting groove, and fasten the connecting ring and other parts to improve the sealing of the connection, facilitate the fixation of the sealing ring through the provision of the clamping block, and facilitate the fixing of the connecting head and the connecting tail on the rod body through the provision of the screws and nuts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the back view of the structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the front view of the structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the local structure of the utility model;

[0022] Figure 5 It is a schematic cross-sectional view of the connecting ring structure of the utility model.

[0023] In the figure: 1. rod body; 2. external thread; 3. connecting head; 4. connecting tail; 5. internal thread; 6. first fixing hole; 7. second fixing hole; 8. connecting block; 9. connecting ring; 10. mounting groove; 11. sealing ring; 12. clamping block; 13. screw; 14. nut. DETAILED DESCRIPTION

[0024] 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 in 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.

[0025] The following is combined with Figure 1-5 To further explain this application in detail,

[0026] The present application embodiment discloses a screw with a detachable head and tail. Figures 1 to 4 , a screw with a detachable head and tail, comprising a rod body 1; an external thread 2 is provided on the surface of the rod body 1, a connecting head 3 is movably connected to the top of the rod body 1, and a connecting tail 4 is movably connected to the bottom of the rod body 1, and an internal thread 5 is provided inside the connecting head 3 and the connecting tail 4; through the setting of the external thread 2, it can be connected with the connecting head 3 and the connecting tail 4, so that the rod body 1 can withstand stronger outward tension, and through the setting of the connecting head 3 and the connecting tail 4, it is convenient for users to assemble and disassemble and connect other components. When the rod body 1 is damaged or needs to be replaced, only the head and tail need to be disassembled, and there is no need to disassemble the entire screw, thereby saving time and cost. Through the setting of the internal thread 5, it can match the external thread 2 of the rod body 1, and the user can rotate to tighten or loosen to achieve connection and disassembly.

[0027] Reference Figure 3 and Figure 4 A first fixing hole 6 is provided on the front of the connecting head 3 and the connecting tail 4, and a second fixing hole 7 is provided on the front of the rod body 1; through the setting of the first fixing hole 6 and the second fixing hole 7, the position of the connecting head 3 and the connecting tail 4 on the rod body 1 can be adjusted.

[0028] Reference Figure 3 and Figure 4 The second fixing hole 7 is located between the external threads 2 , and the second fixing hole 7 is the same size as the first fixing hole 6 .

[0029] Reference Figures 1 to 5 The outer sides of the connecting head 3 and the connecting tail 4 are fixedly installed with connecting blocks 8, and the outer sides of the connecting blocks 8 are fixedly installed with connecting rings 9; the setting of the connecting blocks 8 facilitates the installation of the connecting rings 9, and the setting of the connecting rings 9 facilitates the connection with other components.

[0030] Reference Figures 1 to 5 A mounting groove 10 is provided on the inner side of the connecting ring 9, and a sealing ring 11 is fixedly installed inside the mounting groove 10; the setting of the mounting groove 10 facilitates the installation of the sealing ring 11, and the setting of the sealing ring 11 can fasten the connecting ring 9 and other parts, thereby improving the sealing of the connection.

[0031] Reference Figures 1 to 5 A clamping block 12 is fixedly mounted on the outer side of the sealing ring 11 , and the clamping block 12 is mounted inside the mounting groove 10 ; the setting of the clamping block 12 facilitates the enhancement of the fixation of the sealing ring 11 .

[0032] Reference Figures 1 to 4 A screw 13 is movably installed on the front of the first fixing hole 6, and the screw 13 passes through the rod body 1, the connecting head 3 and the connecting tail 4. A nut 14 is movably connected to the surface of the screw 13; through the arrangement of the screw 13 and the nut 14, it is convenient to fix the position of the connecting head 3 and the connecting tail 4 on the rod body 1.

[0033] Working principle: When the device is in use, the rod body 1, the connecting head 3 and the connecting tail 4 are convenient for users to assemble and disassemble and connect other parts. When the rod body 1 is damaged or needs to be replaced, only the head and the tail need to be removed without removing the entire screw, thereby saving time and cost. When transporting and storing, the head and the tail can be removed and stored separately, thereby saving space and facilitating management. Through the first fixing hole 6, the second fixing hole 7, the screw 13 and the nut 14, the user can adjust the position of the fixed connecting head 3 and the connecting tail 4 on the rod body 1.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A screw with a detachable head and tail, characterized in that: The invention comprises a rod body (1); the surface of the rod body (1) is provided with an external thread (2); the top of the rod body (1) is movably connected with a connecting head (3); the bottom of the rod body (1) is movably connected with a connecting tail (4); the insides of the connecting head (3) and the connecting tail (4) are both provided with internal threads (5); the outsides of the connecting head (3) and the connecting tail (4) are both fixedly mounted with connecting blocks (8); the outsides of the connecting blocks (8) are both fixedly mounted with connecting rings (9); the inside of the connecting ring (9) is provided with a mounting groove (10); the inside of the mounting groove (10) is fixedly mounted with a sealing ring (11); the outside of the sealing ring (11) is fixedly mounted with a clamping block (12); the clamping block (12) is mounted inside the mounting groove (10).

2. A screw with detachable head and tail according to claim 1, characterized in that: A first fixing hole (6) is provided on the front of the connecting head (3) and the connecting tail (4), and a second fixing hole (7) is provided on the front of the rod body (1).

3. A screw with detachable head and tail according to claim 2, characterized in that: The second fixing hole (7) is located between the external threads (2), and the second fixing hole (7) is the same size as the first fixing hole (6).

4. A screw with detachable head and tail according to claim 3, characterized in that: A screw (13) is movably mounted on the front side of the first fixing hole (6); the screw (13) passes through the rod body (1), the connecting head (3) and the connecting tail (4); a nut (14) is movably connected to the surface of the screw (13).

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