Connecting rod splicing device

Abstract

The invention relates to a splicing connecting rod, in particular to a connecting rod splicing device, which comprises a sleeve, a connecting rod and a connecting rod, a reducing pipe and a second positioning hole formed in the reducing pipe are arranged at one end of the inserting pipe, the reducing pipe is inserted into one end of the sleeve, and the first positioning hole is communicated with the second positioning hole; one end of the sleeve is sleeved with the locking sleeve, and a locking hole opposite to the first positioning hole is formed in the locking sleeve; the locking button is rotationally arranged on the locking sleeve and is provided with a button plate, a locking column which is arranged on the button plate and is movably inserted into the locking hole, the first positioning hole and the second positioning hole, and an elastic rod which is used for keeping the locking column in an inserted state, and an elastic included angle is further formed between the elastic rod and the button plate; the elastic included angle enables the locking column to be pulled out of the first positioning hole and the second positioning hole when the locking button is pressed. The connecting rod splicing device is few in parts, simple in structure, low in cost, easy to assemble and more convenient to use.

Description

Technical Field

[0001] The invention relates to a spliced ​​connecting rod, in particular to a connecting rod splicing device. Background Art

[0002] In order to lengthen the rod during use of the tool, two rods are usually spliced ​​together. After the two rods are spliced ​​together, a locking device is required to lock the two rods together to prevent the two rods from separating. For example, CN215457752U discloses a mop with a detachable mop rod, which includes a mop body, a mop rod and a quick connector. The mop body and the mop rod are connected through the quick connector. The quick connector includes an elastic member and a pressing member. The positioning protrusion on the inner wall of the elastic member is positioned and matched with the mop body and the mop rod. Specifically, the elastic member is wrapped around the end of the mop body, the pressing member is eccentrically arranged at the opening of the elastic member, the bottom end of the mop rod is placed in the mop body, and the mop rod and the mop body are respectively provided with positioning holes. After assembly, the positioning protrusion is placed in the positioning hole to fix the mop rod and the mop body. When the pressing member is pressed, the elastic member is deformed and then moves, so that the positioning protrusion is separated from the mop body and the mop rod, and the mop rod can be removed from the mop body. Although the mop realizes the splicing of two tubes, there are many parts and the part structure is complex, resulting in high cost and complex assembly. Summary of the invention

[0003] In order to solve the above problems of more parts, complex assembly and high cost, the present invention provides a connecting rod splicing device, and the specific technical solution is as follows:

[0004] A connecting rod splicing device comprises: a sleeve, one end of which is provided with a first positioning hole; an insert tube, one end of which is provided with a reducing tube and a second positioning hole provided on the reducing tube, the reducing tube is inserted into one end of the sleeve, and the first positioning hole is communicated with the second positioning hole; a locking sleeve, which is sleeved on one end of the sleeve and is provided with a locking hole arranged opposite to the first positioning hole; and a locking button, which is rotatably arranged on the locking sleeve and is provided with a button plate, a locking column which is arranged on the button plate and movably inserted into the locking hole, the first positioning hole and the second positioning hole, and an elastic rod for keeping the locking column in an inserted state, the elastic rod also forming an elastic angle with the button plate, and the elastic angle enables the locking column to be pulled out of the first positioning hole and the second positioning hole when the locking button is pressed.

[0005] Preferably, a positioning ring is provided at one end of the locking sleeve, and the positioning ring is used to abut against the end of the sleeve so that the locking hole and the first fixing hole are arranged opposite to each other.

[0006] Furthermore, a positioning block is provided in the locking sleeve, and the positioning block is arranged opposite to the positioning groove on the sleeve, so that the locking hole is communicated with the first positioning hole.

[0007] Wherein, guide arc angles are provided at both ends of the positioning groove.

[0008] Preferably, the reducing tube is provided with an insertion groove arranged opposite to the locking column.

[0009] Preferably, the first positioning hole and the second positioning hole are both waist-shaped holes.

[0010] Preferably, the locking sleeve is provided with a locking groove, rotation holes are provided on both sides of the locking groove, and the locking holes are provided at the bottom of the locking groove;

[0011] Rotation shafts are symmetrically arranged on both sides of the locking button, and the rotation shafts are rotatably arranged in the rotation holes.

[0012] Preferably, a reducing tube is further provided between the reducing tube and the inserting tube, and the reducing tube abuts against the locking sleeve so that the second positioning hole is arranged opposite to the first positioning hole.

[0013] Preferably, the locking button is provided with an elastic pressing groove arranged opposite to the elastic rod.

[0014] Preferably, one end of the elastic rod in sliding contact with the locking sleeve is provided with a sliding arc surface.

[0015] Preferably, the end of the locking column is provided with an insertion arc surface.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The connecting rod splicing device provided by the present invention has fewer parts, a simple structure, low cost, simple assembly and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of this application;

[0019] Figure 2 It is a schematic diagram of the structure after the locking sleeve is hidden;

[0020] Figure 3 is a front view of the present application;

[0021] Figure 4 is a cross-sectional view of the present application;

[0022] Figure 5 It is a schematic diagram of the structure of the casing;

[0023] Figure 6 It is a schematic diagram of the cannula structure;

[0024] Figure 7 It is a schematic diagram of the assembly of the locking sleeve and the locking button;

[0025] Figure 8 yes Figure 7 A cross-sectional view of

[0026] Fig. 9 It is a stereogram of the first viewing angle of the lock button;

[0027] Fig.10 is a stereogram of the lock button from a second viewing angle;

[0028] Fig.11 This is a bottom view of the lock button;

[0029] Fig.12 is a front view of the lock button;

[0030] Fig.13 is a cross-sectional view of the locking button;

[0031] Fig.14 is a schematic diagram of the structure of the locking sleeve;

[0032] Fig.15 is a cross-sectional view of the locking sleeve;

[0033] Fig.16 is a top view of the locking sleeve;

[0034] Fig.17 It is a structural schematic diagram of a reducing pipe provided with an insertion groove. DETAILED DESCRIPTION

[0035] The present invention will be further described with reference to the accompanying drawings.

[0036] like Figures 1 to 17As shown, a connecting rod splicing device includes a sleeve 4, an insert tube 3, a locking sleeve 2 and a locking button 1, one end of the sleeve 4 is provided with a first positioning hole 42; one end of the insert tube 3 is provided with a reducing tube 31 and a second positioning hole 32, and the second positioning hole 32 is located on the reducing tube 31, the reducing tube 31 is inserted into one end of the sleeve 4, and the first positioning hole 42 is communicated with the second positioning hole 32; the insert tube 3 is inserted into the sleeve 4 to lengthen the rod and is also convenient for storage. The locking sleeve 2 is installed at one end of the sleeve 4, and the locking sleeve 2 is provided with a locking hole 22 arranged opposite to the first positioning hole 42; the locking button 1 is rotatably installed on the locking sleeve 2, and the locking button 1 is provided with a button plate 11 and a locking column 13 and an elastic rod 12 arranged on the button plate 11. The locking column 13 is used to be movably inserted into the locking hole 22, the first positioning hole 42 and the second positioning hole 32 so that the insertion tube 3 and the sleeve 4 cannot be separated. The elastic rod 12 is used to keep the locking column 13 in an inserted state. The elastic rod 12 also forms an elastic angle A with the button plate 11. The elastic angle A enables the locking column 13 to be pulled out of the first positioning hole 42 and the second positioning hole 32 when the locking button 1 is pressed.

[0037] Only two parts are needed to realize the locking of the connecting rod splicing, which greatly reduces the number of parts, and the parts have a simple structure and are easy to assemble and use.

[0038] The elastic rod 12 increases the elastic force, and the elastic rod 12 keeps the locking column 13 in an inserted state. When the button plate 11 is pressed, when the force applied to the button plate 11 is greater than the elastic force provided by the elastic rod 12, the button plate 11 rotates around the axis of the rotating shaft 14, and one end of the button plate 11 provided with the locking column 13 rotates upward, thereby separating the locking column 13 from the first positioning hole 42 and the second positioning hole 32 on the sleeve 4 and the insertion tube 3, thereby realizing the disassembly of the sleeve 4 and the insertion tube 3. When splicing the insert tube 3 and the sleeve 4, first press the button plate 11 to make the locking column 13 rise to the first positioning hole 42, then insert the reduced diameter tube 31 of the insert tube 3 into the sleeve 4, then release the button plate 11, and then rotate the insert tube 3. At this time, the button plate 11 elastically presses the locking column 13 on the reduced diameter tube 31 under the action of the elastic rod 12. When the first positioning hole 42 is aligned with the second positioning hole 32, the locking column 13 is inserted into the second positioning hole 32 under the action of the elastic rod 12, so as to lock the sleeve 4 and the insert tube 3 and prevent the sleeve 4 from separating from the insert tube 3. The button body has a simple structure, which can realize both insertion locking and unlocking, greatly reducing the number of parts, reducing costs, and is simple and convenient to assemble and use.

[0039] In order to facilitate the alignment of the first positioning hole 42 and the locking hole 22, a positioning ring 24 is provided at one end of the locking sleeve 2. The positioning ring 24 is used to abut against the end of the sleeve 4 so that the locking hole 22 and the first positioning hole 42 are arranged opposite to each other. The axis of the first positioning hole 42 and the axis of the locking hole 22 are on the same plane. The first positioning hole 42 can be connected to the locking hole 22 by rotating the sleeve 4.

[0040] In order to directly realize the communication between the first positioning hole 42 and the locking hole 22, a positioning block 25 is provided in the locking sleeve 2, and the positioning block 25 is arranged opposite to the positioning groove 41 on the sleeve 4, so that the locking hole 22 communicates with the first positioning hole 42. The positioning block 25 and the positioning groove 41 realize the coaxial arrangement of the first positioning hole 42 and the locking hole 22, which is convenient for assembly.

[0041] Both ends of the positioning groove 41 are provided with guide arc corners 411 , and the guide arc corners 411 facilitate the positioning groove 41 to be inserted into the positioning block 25 .

[0042] The first positioning hole 42 and the second positioning hole 32 are both waist-shaped holes, which can facilitate the movement of the locking column 13 and avoid interference between the locking column 13 and the locking hole 22 , while ensuring the strength of the locking column 13 without reducing the diameter of the locking column 13 .

[0043] In order to facilitate the installation of the locking button 1, a locking groove 21 is provided on the locking sleeve 2, and rotation holes 23 are provided on both sides of the locking groove 21, and the locking hole 22 is arranged at the bottom of the locking groove 21; rotation shafts 14 are symmetrically provided on both sides of the locking button 1, and the rotation shafts 14 are rotatably arranged in the rotation holes 23.

[0044] A reducer 33 is provided between the reducer 31 and the insert 3, and the reducer 33 abuts against the locking sleeve 2 so that the second positioning hole 32 is arranged opposite to the first positioning hole 42. The reducer 33 can facilitate the processing of the reducer 31 and realize the positioning of the reducer 31.

[0045] The locking button 1 is provided with an elastic pressing groove 16 arranged opposite to the elastic rod 12. The elastic pressing groove 16 is used to accommodate the elastic rod 12 after pressing the button plate 11, thereby reducing the thickness of the button plate 11, making the protruding height of the connecting rod locking button 1 smaller, and the overall structure is compact. At the same time, the elastic pressing groove 16 forms a reinforced edge around the button plate 11, ensuring the strength of the button plate, and not easily deformed when pressed.

[0046] In order to further reduce the length of the button plate 11, one end of the button plate 11 is provided with a pressure relief groove 17 which is in communication with the elastic pressure groove 16 and is arranged opposite to the end of the elastic rod 12. When the button plate 11 is pressed onto the elastic rod 12, the end of the elastic rod 12 is located in the pressure relief groove 17, and the length of the button plate 11 does not need to be increased.

[0047] One end of the elastic rod 12 that is in sliding contact with the locking sleeve 2 is provided with a sliding arc surface 121 . The sliding arc surface 121 can effectively reduce the friction force, so that the elastic rod 12 can slide more smoothly in the locking groove 21 .

[0048] In order to facilitate the installation of the rotating shaft 14 on the locking sleeve 2, an insertion inclined surface 141 is provided on the rotating shaft 14. The insertion inclined surface 141 can deform the rotating shaft 14 toward the inside of the button body to facilitate assembly.

[0049] In order to further facilitate the insertion of the rotating shaft 14 and avoid damage to the rotating shaft 14 during assembly, elastic grooves 15 are provided on both sides of the rotating shaft 14. The elastic grooves 15 can increase the elasticity of the rotating shaft 14 and avoid tearing between the rotating shaft 14 and the button plate 11 when the rotating shaft 14 is installed.

[0050] The end of the locking column 13 is provided with an insertion arc surface 132 , and the insertion arc surface 132 enables the locking column 13 to be conveniently inserted into the locking hole 22 , thereby reducing resistance.

[0051] The end of the elastic rod 12 can be located at one side of the locking column 13 or at an end of the button plate away from the locking column 13 , that is, the locking column 13 and the elastic rod 12 are located at two ends of the button plate respectively.

[0052] In order to facilitate the movement of the locking column 13, the locking hole 22 is a waist-shaped hole. The waist-shaped locking hole 22 can facilitate the movement of the locking column 13 and avoid interference between the locking column 13 and the locking hole 22. At the same time, there is no need to reduce the diameter of the locking column 13, thereby ensuring the strength of the locking column 13.

[0053] The locking sleeve 2 facilitates the installation of the connecting rod locking button 1 and can improve the connection strength between the sleeve 4 and the insertion tube 3. The above functions can be achieved only by the locking sleeve 2 and the button body, which greatly simplifies the structure, reduces the number of parts, reduces the cost, and is easy to assemble and operate.

[0054] like Fig.17 As shown, an insertion groove 34 is provided on the reduced diameter tube 31 of the insertion tube 3, and the insertion groove 34 is arranged opposite to the locking column 13. When installing the insertion tube 3, the locking button 1 does not need to be pressed, making the assembly more convenient. Further, in order to facilitate the insertion of the insertion tube 3 and make it easier to lift the locking column 13 of the locking button 1, a plugging slope 133 arranged opposite to the insertion groove 34 is also provided on the top of the locking column 13. When the insertion tube 3 is inserted, the plugging slope 133 first hits the end of the insertion groove 34, and the insertion groove 34 pushes the locking column 13 upward through the plugging slope 133.

[0055] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. A connecting rod splicing device, characterized in that: include: A sleeve (4) having a first positioning hole (42) at one end; The insert tube (3) has a reducing tube (31) and a second positioning hole (32) provided on the reducing tube (31) at one end, the reducing tube (31) is inserted into one end of the sleeve (4), and the first positioning hole (42) is communicated with the second positioning hole (32); a locking sleeve (2) sleeved on one end of the sleeve (4) and provided with a locking hole (22) arranged opposite to the first positioning hole (42); and A locking button (1) is rotatably mounted on the locking sleeve (2), and is provided with a button plate (11), a locking column (13) mounted on the button plate (11) and movably inserted into the locking hole (22), the first positioning hole (42) and the second positioning hole (32), and an elastic rod (12) for keeping the locking column (13) in an inserted state, wherein an elastic angle A is formed between the elastic rod (12) and the button plate (11), and the elastic angle A enables the locking column (13) to be pulled out of the first positioning hole (42) and the second positioning hole (32) when the locking button (1) is pressed.

2. A connecting rod splicing device according to claim 1, characterized in that: A positioning ring (24) is provided at one end of the locking sleeve (2), and the positioning ring (24) is used to abut against the end of the sleeve (4) so ​​that the locking hole (22) and the first positioning hole (42) are arranged opposite to each other.

3. A connecting rod splicing device according to claim 2, characterized in that: A positioning block (25) is provided in the locking sleeve (2), and the positioning block (25) is arranged opposite to the positioning groove (41) on the sleeve (4) so ​​that the locking hole (22) communicates with the first positioning hole (42).

4. A connecting rod splicing device according to claim 1, characterized in that: The reduced diameter tube (31) is provided with an insertion groove (33) arranged opposite to the locking column (13).

5. A connecting rod splicing device according to claim 1, characterized in that: The first positioning hole (42) and the second positioning hole (32) are both waist-shaped holes.

6. A connecting rod splicing device according to claim 1, characterized in that: The locking sleeve (2) is provided with a locking groove (21), and rotation holes (23) are provided on both sides of the locking groove (21), and the locking hole (22) is arranged at the bottom of the locking groove (21); the locking button (1) is symmetrically provided with rotation shafts (14) on both sides, and the rotation shafts (14) are rotatably arranged in the rotation holes (23).

7. A connecting rod splicing device according to claim 1, characterized in that: A reducing tube (33) is also provided between the reducing tube (31) and the inserting tube (3), and the reducing tube (33) abuts against the locking sleeve (2) so that the second positioning hole (32) and the first positioning hole (42) are arranged opposite to each other.

8. The connecting rod splicing device according to claim 1, characterized in that: The locking button (1) is provided with an elastic pressing groove (16) arranged opposite to the elastic rod (12).

9. A connecting rod splicing device according to claim 1, characterized in that: One end of the elastic rod (12) that is in sliding contact with the locking sleeve (2) is provided with a sliding arc surface (121).

10. The connecting rod splicing device according to claim 1, characterized in that: The end of the locking column (13) is provided with an inserting arc surface (132) or an inserting inclined surface (133).

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