Connecting structure for connecting support arm and base

Abstract

The utility model discloses a connecting structure for connecting a support arm and a base, which relates to the technical field of mechanical connection and comprises a rotating part and a connecting component, the lower end of the support arm is provided with a hole for mounting the rotating part, two ends of the rotating part can be respectively inserted into the lower end of the support arm and the connecting component, and the support arm and the connecting component can rotate relatively. A locking part is arranged at the lower end of the connecting assembly, a clamping groove is formed in the upper end of the base, an unlocking hole is formed in the position, corresponding to one side wall of the clamping groove, of the base, the locking part can stretch into the clamping groove, one side of the locking part can stretch out through the unlocking hole and is limited in the unlocking hole, and the locking part is pressed towards the interior of the clamping groove through the unlocking hole; and the locking part can be separated from the unlocking hole and is unlocked. According to the utility model, the support arm and the base can be rotationally connected and quickly disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical connection, in particular to a connection structure for connecting a support arm and a base. Background Art

[0002] To realize the folding function between the support arm and the base, the support arm and the base need to be rotatably connected, and at the same time, the support arm and the base need to be quickly disassembled and assembled.

[0003] The traditional connection structure scheme has more components and is more complex to assemble, which is not conducive to popularization and use. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a connection structure for connecting a support arm and a base to solve the problems existing in the above-mentioned prior art and realize the rotatable connection and quick disassembly and assembly between the support arm and the base.

[0005] To achieve the above purpose, the utility model provides the following scheme:

[0006] The utility model provides a connection structure for connecting a support arm and a base, including a rotating member and a connection assembly. A hole for installing the rotating member is provided at the lower end of the support arm. Both ends of the rotating member can be respectively inserted into the lower end of the support arm and the connection assembly, and both the support arm and the connection assembly can rotate relative to each other. A locking portion is provided at the lower end of the connection assembly, and a clamping groove is provided at the upper end of the base. An unlocking hole is provided at a position on one side wall of the base corresponding to the clamping groove. The locking portion can extend into the clamping groove, and one side of the locking portion can extend out through the unlocking hole and be limited in the unlocking hole. Pressing the locking portion into the interior of the clamping groove through the unlocking hole can make the locking portion disengage from the unlocking hole and unlock.

[0007] Preferably, the rotating member is a rotating shaft, and there are two rotating shafts. One first assembly hole is provided at each of the two ends of the lower end of the support arm. The first ends of the two rotating shafts are respectively inserted into the two first assembly holes, and the second ends of the two rotating shafts are respectively inserted into the two ends of the connection assembly.

[0008] Preferably, the rotating shaft is a spring rotating shaft.

[0009] Preferably, the first assembly hole is a polygonal hole, and the cross-section of the first end of the rotating shaft is polygonal.

[0010] Preferably, the connection assembly includes a first connecting member and a second connecting member. The first connecting member and the second connecting member are inserted and connected, and second assembly holes are provided at the upper ends of both the first connecting member and the second connecting member. The second ends of the two rotating shafts are respectively inserted into the two second assembly holes.

[0011] Preferably, the second assembly hole is a polygonal hole, and the cross-section of the second end of the rotating shaft is polygonal.

[0012] Preferably, both the first connecting member and the second connecting member include an assembly portion, a plugging portion, and a coinciding portion. One end of the assembly portion can be sleeved on the outer peripheries of both sides of the lower end of the support arm. The second assembly hole is provided in the assembly portion. The lower end of the assembly portion is fixed integrally with the upper end of the plugging portion. The upper portion of the plugging portion is provided with a pin and a jack. And on the first connecting member, the pin is located above the jack, and on the second connecting section, the jack is located above the pin. The pin on the first connecting member can be plugged into the jack on the second connecting member, and the pin on the second connecting member can be plugged into the jack on the first connecting member. And the pin and the jack are in transitional fit. The lower end of the plugging portion is fixed integrally with the upper end of the coinciding portion. When the two plugging portions are plugged, the outer edges of the two coinciding portions are flush, and there is a gap between the two coinciding portions. The two coinciding portions are used for being inserted into the clamping groove.

[0013] Preferably, the plugging portion includes a plugging block and a plugging plate. The plugging block is fixed to one end of the plugging plate. The first side wall of the plugging plate is provided with a receiving groove and the pin. The receiving groove and the pin are arranged vertically. The plugging block is provided with the jack on the side close to the plugging plate. When the two plugging portions are plugged, the receiving groove on the first connecting member is used for receiving the pin on the second connecting member, and the receiving groove on the second connecting member is used for receiving the pin on the first connecting member.

[0014] Preferably, the locking portion is fixed on the coinciding portion of the first connecting member and is located on the side of the coinciding portion away from the second connecting member. The locking portion is a buckle.

[0015] The utility model has achieved the following technical effects compared with the prior art:

[0016] The connection structure for connecting the support arm and the base provided by the present utility model has the lower ends of both sides of the support arm connected to two rotating shafts in a hole-shaft fit manner, and the first connecting member and the rotating shaft, as well as the second connecting member and the rotating shaft, are connected in a hole-shaft fit manner. At the same time, the first connecting member and the second connecting member are connected by a pin and a jack in a fit manner. Thus, when the pin is inserted into the jack and locked, the rapid assembly of the support arm, the rotating shaft, and the connecting assembly is completed. A lock catch is provided at the lower end of the connecting assembly, and a clamping groove is provided on the base. When assembly is required, the connecting assembly is inserted into the clamping groove, and the lock catch at the lower end of the connecting assembly is quickly locked with the clamping groove on the base. When disassembly is required, the lock catch is pushed towards the inside of the clamping groove by hand through the unlocking hole, and the connecting assembly is unlocked from the base, and then the support arm can be pulled out from the clamping groove. During this process, since the distance between the second connecting member and the lock catch is small, the moving stroke of the lock catch during insertion and unlocking is reduced, and the fatigue fracture of the lock catch during repeated insertion and unlocking is avoided, which affects the service life. The present utility model realizes the quick connection and quick assembly of the support arm and the connecting assembly, the quick connection and quick assembly of the connecting assembly and the base, and the rotational connection of the support arm and the base with the least structural components, integrates the three functions, greatly reduces the assembly difficulty, and also reduces the production cost, having good economic benefits. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the use state of the connection structure for connecting the support arm and the base in the present utility model;

[0019] Figure 2 is Figure 1 exploded view;

[0020] Figure 3 It is a schematic diagram of the structure of the first connecting member in the present utility model at one angle;

[0021] Figure 4 It is a schematic diagram of the structure of the first connecting member in the present utility model at another angle;

[0022] Figure 5 It is a schematic diagram of the structure of the second connecting member in the present utility model;

[0023] Figure 6 It is a schematic diagram of the structure of the connection structure for connecting the support arm and the base in the present utility model at one angle;

[0024] Figure 7 This is a schematic structural view of the connection structure for connecting the support arm and the base in another angle in the present utility model;

[0025] Figure 8 This is a schematic structural view when the connection component is separated from the base in the present utility model;

[0026] Figure 9 This is a sectional view of the connection part between the connection component and the base in the present utility model;

[0027] In the figure: 1 - support arm, 2 - rotating shaft, 3 - first connecting piece, 4 - second connecting piece, 5 - base, 6 - plug pin, 7 - jack, 8 - lock catch, 9 - second assembly hole. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0029] The purpose of the present utility model is to provide a connection structure for connecting a support arm and a base to solve the problems existing in the prior art and realize the rotational connection and quick disassembly between the support arm and the base.

[0030] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] As Figures 1-9 shown, the present utility model provides a connection structure for connecting a support arm and a base, including a rotating part and a connection component. A hole for installing the rotating part is provided at the lower end of the support arm 1. Both ends of the rotating part can be respectively inserted into the lower end of the support arm and the connection component, and the support arm and the connection component can rotate relative to each other, thereby realizing the rotational connection between the support arm 1 and the connection component. A locking part is provided at the lower end of the connection component, a clamping groove is provided at the upper end of the base 5, and an unlocking hole is opened at the position of one side wall of the base 5 corresponding to the clamping groove. The locking part can extend into the clamping groove, and one side of the locking part can extend out through the unlocking hole and be limited in the unlocking hole to achieve quick locking, thereby realizing the connection between the connection component and the base 5. The rotational connection between the support arm 1 and the base 5 can be realized, ensuring that its folding function can be achieved. Pressing the locking part into the inside of the clamping groove through the unlocking hole can make the locking part disengage from the unlocking hole and unlock, thereby enabling the connection component to disengage from the base 5 and meeting the requirement of quick disassembly. Through the above design in this embodiment, the overall structure is simple, greatly reducing the assembly difficulty and production cost at the same time, and having good economic benefits.

[0032] Specifically, the rotating member is the rotating shaft 2, and there are two rotating shafts 2. A first assembly hole is formed on each side of the lower end of the support arm. The first ends of the two rotating shafts 2 are respectively inserted into the two first assembly holes, and the second ends of the two rotating shafts 2 are respectively inserted into both ends of the connection assembly, realizing the connection between the rotating shaft 2 and the support arm 1.

[0033] The rotating shaft 2 is a spring rotating shaft, which can rotate by itself and is convenient for realizing the rotational connection between the support arm 1 and the base 5.

[0034] The first assembly hole is a polygonal hole, and the cross-section of the first end of the rotating shaft 2 is polygonal. When the first end of the rotating shaft 2 is inserted into the first assembly hole, it can be mutually limited with the first assembly hole, avoiding relative rotation between the two, and thus facilitating the relative rotation between the support arm 1 and the base 5.

[0035] The connection assembly includes a first connecting member 3 and a second connecting member 4. The first connecting member 3 and the second connecting member 4 are inserted and connected, and second assembly holes 9 are provided at the upper ends of both the first connecting member 3 and the second connecting member 4. The second ends of the two rotating shafts 2 are respectively inserted into the two second assembly holes 9, realizing the connection between the rotating shaft 2 and the connection assembly.

[0036] The second assembly hole 9 is polygonal, and the cross-section of the second end of the rotating shaft 2 is polygonal. When the second end of the rotating shaft 2 is inserted into the second assembly hole 9, it can be mutually limited with the second assembly hole 9, avoiding relative rotation between the two, and thus facilitating the relative rotation between the support arm 1 and the base 5.

[0037] Among them, for the specific shape design of the first assembly hole, the first end of the rotating shaft 2, the second assembly hole 9, and the second end of the rotating shaft 2, those skilled in the art can modify it according to actual needs, as long as it can meet stable insertion and facilitate the subsequent rotational connection between the support arm 1 and the base 5.

[0038] Both the first connecting member 3 and the second connecting member 4 include an assembly portion, a plugging portion, and a coinciding portion. One end of the assembly portion can be sleeved on the outer peripheries of both sides of the lower end of the support arm. A second assembly hole 9 is provided on the assembly portion. The lower end of the assembly portion is integrally fixed to the upper end of the plugging portion. The upper portion of the plugging portion is provided with a pin 6 and a socket 7. And the pin 6 on the first connecting member 3 is located above the socket 7, and the socket 7 on the second connecting segment is located above the pin 6. Thus, when the first connecting member 3 and the second connecting member 4 are plugged, the pin 6 on the first connecting member 3 can be plugged into the socket 7 on the second connecting member 4, and the pin 6 on the second connecting member 4 can be plugged into the socket 7 on the first connecting member 3. And the pin 6 and the socket 7 are in a transition fit. A tight fit connection can improve the stability of the plugging and prevent the pin 6 from coming out of the socket 7 during use. The lower end of the plugging portion is integrally fixed to the upper end of the coinciding portion. When the two plugging portions are plugged, the outer edges of the two coinciding portions are flush, and there is a gap between the two coinciding portions. The gap is preferably greater than 1 mm to ensure that when the locking portion is pushed inward, the coinciding portion where the locking portion is located can approach the other coinciding portion, so that the locking portion disengages from the unlocking hole. The two coinciding portions are used for inserting into the clamping groove.

[0039] The plugging portion includes a plugging block and a plugging plate. The plugging block is fixed to one end of the plugging plate. A receiving groove and a pin 6 are provided on the first side wall of the plugging plate. The receiving groove and the pin 6 are arranged vertically. And the pin 6 on the first connecting member 3 is located above the receiving groove, and the pin 6 on the second connecting member 4 is located below the receiving groove. A socket 7 is provided on the side of the plugging block close to the plugging plate. When the two plugging portions are plugged, the receiving groove on the first connecting member 3 is used for receiving the pin 6 on the second connecting member 4, and the receiving groove on the second connecting member 4 is used for receiving the pin 6 on the first connecting member 3.

[0040] The locking portion is fixed to the coinciding portion of the first connecting member 3 and is located on the side of the coinciding portion away from the second connecting member 4. Thus, the locking portion can extend out through the unlocking hole. The locking portion is a lock catch 8.

[0041] In the process of locking and unlocking the lock catch 8 in this embodiment, since the distance between the second connecting member 4 and the lock catch 8 is small, the moving stroke of the lock catch 8 during plugging and unlocking is reduced, and the lock catch 8 is prevented from suffering from fatigue fracture during repeated plugging and unlocking, which affects the service life.

[0042] Specific examples are applied in the present utility model to elaborate on the principle and implementation manner of the present utility model. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A connecting structure for connecting a support arm and a base, characterized in that: It includes a rotating member and a connecting assembly. A hole for installing the rotating member is provided at the lower end of the support arm. Both ends of the rotating member can be inserted into the lower end of the support arm and the connecting assembly respectively, and the support arm and the connecting assembly can rotate relative to each other. A locking portion is provided at the lower end of the connecting assembly, and a clamping groove is provided at the upper end of the base. An unlocking hole is formed at the position of the base corresponding to one side wall of the clamping groove. The locking portion can extend into the clamping groove, and one side of the locking portion can extend out through the unlocking hole and be limited in the unlocking hole. Pressing the locking portion into the interior of the clamping groove through the unlocking hole can make the locking portion disengage from the unlocking hole and unlock.

2. The connection structure for connecting the support arm and the base according to claim 1, wherein: The rotating member is a rotating shaft, and there are two rotating shafts. One first assembly hole is formed on each of the two sides of the lower end of the support arm. The first ends of the two rotating shafts are respectively inserted into the two first assembly holes, and the second ends of the two rotating shafts are respectively inserted into both ends of the connecting assembly.

3. The connection structure for connecting the support arm and the base according to claim 2, wherein: The rotating shaft is a spring rotating shaft.

4. The connection structure for connecting the support arm and the base according to claim 2, characterized in that: The first assembly hole is a polygonal hole, and the cross-section of the first end of the rotating shaft is polygonal.

5. The connection structure for connecting the support arm and the base according to claim 2, characterized in that: The connecting assembly includes a first connecting member and a second connecting member. The first connecting member and the second connecting member are inserted and connected, and second assembly holes are provided at the upper ends of both the first connecting member and the second connecting member. The second ends of the two rotating shafts are respectively inserted into the two second assembly holes.

6. The connection structure for connecting the support arm and the base according to claim 5, wherein: The second assembly hole is a polygonal hole, and the cross-section of the second end of the rotating shaft is polygonal.

7. The connecting structure for connecting the support arm and the base according to claim 5, characterized in that: Both the first connecting member and the second connecting member include an assembly portion, a plugging portion, and a coinciding portion. One end of the assembly portion can be sleeved on the outer peripheries of both sides of the lower end of the support arm. The second assembly hole is formed on the assembly portion. The lower end of the assembly portion is fixed integrally with the upper end of the plugging portion. A plug and a jack are provided on the upper portion of the plugging portion. The plug on the first connecting member is located above the jack, and the jack on the second connecting member is located above the plug on the first connecting member. The plug on the first connecting member can be inserted into the jack on the second connecting member, and the plug on the second connecting member can be inserted into the jack on the first connecting member. The plug and the jack are in transitional fit. The lower end of the plugging portion is fixed integrally with the upper end of the coinciding portion. When the two plugging portions are plugged, the outer edges of the two coinciding portions are flush, and there is a gap between the two coinciding portions. The two coinciding portions are used for inserting into the clamping groove.

8. The connection structure for connecting the support arm and the base according to claim 7, characterized in that: The plugging portion includes a plugging block and a plugging plate. The plugging block is fixed at one end of the plugging plate. A receiving groove and the plug are provided on the first side wall of the plugging plate. The receiving groove and the plug are arranged vertically. The jack is formed on the side of the plugging block close to the plugging plate. When the two plugging portions are plugged, the receiving groove on the first connecting member is used for receiving the plug on the second connecting member, and the receiving groove on the second connecting member is used for receiving the plug on the first connecting member.

9. The connecting structure for connecting the support arm and the base according to claim 7, characterized in that: The locking part is fixed on the overlapping part of the first connecting piece and is located on the side of the overlapping part away from the second connecting piece. The locking part is a buckle.

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