PCBA (Printed Circuit Board Assembly) for selfie stick with anti-collision structure

Abstract

The utility model discloses a PCBA circuit board for a selfie stick with an anti-collision structure, and relates to the technical field of PCBA circuit boards, the PCBA circuit board comprises a bottom plate, U frames are fixed on the top end of the bottom plate close to the left and right edges, and a buffer assembly is arranged between the two U frames; the buffering assembly comprises two base rods fixed in the U-shaped frame, the outer walls of the two base rods are slidably sleeved with restraining strips, and the positions, located at the bottom ends of the restraining strips, of the outer walls of the base rods are sleeved with springs. According to the utility model, the stress plate is in direct contact with external force, so that damage caused by the fact that a stress point is located on the surface of the PCBA circuit board is avoided, meanwhile, the stress plate linearly descends along the outer wall of the base rod, the spring is compressed, the external force is buffered and unloaded, and meanwhile, the airbag strip is enlarge in collision and can be in contact with the bottom end of the PCBA circuit board, so that a safe distance between the airbag strip and a floor is ensured; and the external force can still be counteracted when the air bag strips expand and become large, so that a better buffering protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCBA circuit boards, and particularly relates to a PCBA circuit board for a selfie stick with an anti-collision structure. Background Technique

[0002] The selfie stick is a popular selfie artifact in the world. It can be arbitrarily telescoped between 20 cm and 120 cm in length. Users only need to fix the mobile phone or the point-and-shoot camera on the telescopic rod, and can realize multi-angle selfies through the remote control. Through the PCBA circuit board built in the selfie stick, it is connected to the mobile phone end to control the shutter operation of the mobile phone.

[0003] A PCBA circuit board for a selfie stick with an anti-collision structure disclosed in the existing patent (authorized announcement number: CN 214101899 U), under the action of the anti-collision mechanism, when the PCBA circuit board body is subjected to external force extrusion, the sleeve rings on both sides can move downward along the surface of the guide rod, squeezing the first shock-absorbing spring, relieving the extrusion and collision force received by the PCBA circuit board body, effectively preventing damage to the PCBA circuit board body caused by impact, and reducing the later maintenance cost.

[0004] However, the above technical solution still has certain defects. When the circuit board is subjected to external force, the stress point is located on the surface of the circuit board, which will cause damage to the electronic components on its surface. If the external force is large and the spring is compressed to the limit and cannot continue to reduce the buffer, the circuit board will break along the stress point, so that it cannot work normally. Therefore, a PCBA circuit board for a selfie stick with an anti-collision structure is proposed. Content of the Utility Model

[0005] Based on this, the purpose of the utility model is to provide a PCBA circuit board for a selfie stick with an anti-collision structure to solve the technical problems raised in the above background.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A PCBA circuit board for a selfie stick with an anti-collision structure, including a bottom plate, U-shaped frames are fixed at positions close to the left and right edges at the top of the bottom plate, and a buffer assembly is arranged between the two U-shaped frames;

[0007] The buffer assembly includes two base rods fixed in the U-shaped frames. The outer walls of the two base rods are slidably sleeved with restraint strips. Springs are sleeved on the outer walls of the base rods at the bottom of the restraint strips. A first docking strip is fixed at the middle position between the two springs at the bottom of the restraint strip. A PCBA circuit board is installed between the two first docking strips. A cross bar is fixed above the PCBA circuit board between the two restraint strips. A stress plate is arranged between the two cross bars;

[0008] A pair of pressure rods are fixed to the bottom end of the first docking strip. A piston extending into the top end of the bottom plate is provided at the bottom end of the pressure rod. A piston chamber is opened at the contact position between the top end of the bottom plate and the piston.

[0009] As a preferred technical solution of the PCBA circuit board for a selfie stick with an anti-collision structure of the present utility model, a base rod is longitudinally fixed in each U-shaped frame. The upper and lower ends of the base rod are fixed to the U-shaped frame and the bottom plate respectively.

[0010] As a preferred technical solution of the PCBA circuit board for a selfie stick with an anti-collision structure of the present utility model, a buffer frame is fixed to the top end of the bottom plate below the PCBA circuit board. A plurality of airbag strips communicating with the buffer frame are provided at the top end of the buffer frame.

[0011] As a preferred technical solution of the PCBA circuit board for a selfie stick with an anti-collision structure of the present utility model, an air pipe is provided in the bottom plate on one side of the piston chamber. The two ends of the air pipe are respectively communicated with the piston chamber and the buffer frame.

[0012] As a preferred technical solution of the PCBA circuit board for a selfie stick with an anti-collision structure of the present utility model, the force-bearing plate is arranged in a W shape. The outer walls around the force-bearing plate are fixed to the cross bar and the restraint bar.

[0013] As a preferred technical solution of the PCBA circuit board for a selfie stick with an anti-collision structure of the present utility model, second docking strips extending into the first docking strip are provided at both ends of the PCBA circuit board. A docking groove is opened at the contact position between the first docking strip and the second docking strip. A positioning rod extending into the docking groove is provided on the outer wall of the first docking strip. A chamfer is opened at one end of the positioning rod close to the second docking strip. A restraint hole is opened at the contact position between the first docking strip and the positioning rod. A telescopic spring is sleeved on the outer wall of the positioning rod in the restraint hole. The two ends of the telescopic spring are respectively fixed to the outer wall of the positioning rod and the inner wall of the restraint hole. One end of the telescopic spring extends into the second docking strip. A positioning hole is opened at the contact position between the second docking strip and the telescopic spring.

[0014] As a preferred technical solution of the PCBA circuit board for a selfie stick with an anti-collision structure of the present utility model, a matching round hole is opened at the contact position between the restraint bar and the base rod. The front and rear ends of the restraint bar are in a non-contact state with the U-shaped frame.

[0015] In summary, the present utility model mainly has the following beneficial effects:

[0016] The utility model uses a stress plate to directly contact with an external force, avoiding the situation of damage caused by the stress point being located on the surface of the PCBA circuit board. At the same time, it descends linearly along the outer wall of the base rod, the spring is compressed and buffers and unloads the external force. Meanwhile, the airbag strip collides and expands, and can contact the bottom end of the PCBA circuit board to ensure a safe protection distance from the floor. Similarly, when the airbag strip expands, it can still offset the external force, playing a better buffering and protecting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of the utility model;

[0018] Figure 2 is an expanded perspective view of the utility model;

[0019] Figure 3 is a three-dimensional structural diagram of the bottom plate of the utility model;

[0020] Figure 4 is a front view sectional view of the bottom plate of the utility model;

[0021] Figure 5 is a front view sectional view of a partial buffer assembly of the utility model;

[0022] Figure 6 of the utility model Figure 5 enlarged view at A in.

[0023] In the figure: 100, bottom plate; 101, piston chamber; 102, air pipe;

[0024] 110, buffer frame; 111, airbag strip; 120, U-shaped frame; 130, buffer assembly; 131, restraint strip; 132, cross bar; 133, stress plate; 134, first docking strip; 135, base rod; 136, spring; 137, pressure rod; 138, piston; 139, docking groove; 140, PCBA circuit board; 141, second docking strip; 150, positioning rod; 151, telescopic spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0026] The embodiments of the present utility model will be described below according to its overall structure.

[0027] A PCBA circuit board for a selfie stick with an anti-collision structure, as Figures 1 to 6As shown, it includes a bottom plate 100. At the top of the bottom plate 100 near the left and right edges, a U-shaped frame 120 is fixed. A buffer assembly 130 is provided between the two groups of U-shaped frames 120;

[0028] The buffer assembly 130 includes two base rods 135 fixed in the U-shaped frame 120. A restraint bar 131 is slidably sleeved on the outer walls of the two base rods 135. A spring 136 is sleeved on the outer wall of the base rod 135 at the bottom of the restraint bar 131. At the middle position between the two springs 136 at the bottom of the restraint bar 131, a first docking bar 134 is fixed. A PCBA circuit board 140 is installed between the two first docking bars 134. A cross bar 132 is fixed above the PCBA circuit board 140 between the two restraint bars 131. A force-receiving plate 133 is provided between the two cross bars 132;

[0029] At the bottom of the first docking bar 134, a pair of pressure rods 137 are fixed. At the bottom of the pressure rod 137, a piston 138 extending into the top of the bottom plate 100 is provided. At the contact position between the top of the bottom plate 100 and the piston 138, a piston chamber 101 is opened;

[0030] At the bottom of the PCBA circuit board 140 on the top of the bottom plate 100, a buffer frame 110 is fixed. At the top of the buffer frame 110, a plurality of airbag strips 111 connected to the buffer frame 110 are provided;

[0031] Inside the bottom plate 100, on one side of the piston chamber 101, an air pipe 102 is provided. The two ends of the air pipe 102 are respectively connected to the piston chamber 101 and the buffer frame 110.

[0032] When an external force contacts the force-receiving plate 133 and generates a downward external force, at the same time, the two restraint bars 131 slide down along the outer walls of the base rods 135. At this time, the spring 136 is compressed to buffer and cooperate with the external force. At the same time, it avoids the direct impact of the external force on the PCBA circuit board 140, effectively protecting the PCBA circuit board 140 from damage. At the same time, the first docking bar 134 at the bottom of the restraint bar 131 is synchronously lowered, and the pressure rod 137 is pushed down. The piston 138 connected to the end is lowered in the piston chamber 101, and the air in the piston chamber 101 is squeezed and conveyed through the air pipe 102 into the buffer frame 110 until it enters the airbag strip 111 to make it expand and become larger, which can contact the bottom of the descending PCBA circuit board 140 and block its continuous descent, avoiding the rigid effect when it drops to the limit. Similarly, the expansion of the airbag strip 111 can still offset the external force hitting the force-receiving plate 133, further playing a better buffering and protecting role.

[0033] Please refer specifically to Figure 1 , in each group of U-shaped frames 120, a base rod 135 is longitudinally fixed. The upper and lower ends of the base rod 135 are respectively fixed to the U-shaped frame 120 and the bottom plate 100.

[0034] When subjected to external force, the force-bearing plate 133 is ensured to be lowered linearly along the outer wall of the base rod 135, thereby achieving the purpose of buffering and unloading force.

[0035] Please refer to Figure 1 The load-bearing plate 133 is arranged in a W shape, and the outer walls around the load-bearing plate 133 are fixed to the horizontal bars 132 and the restraining bars 131 .

[0036] The W shape is utilized to increase the external force that the force-bearing plate 133 can withstand, thereby better preventing the force-bearing plate 133 from deforming, squeezing and damaging the PCBA circuit board 140 , thereby indirectly increasing its service life.

[0037] Please refer to Figure 5 and Figure 6 , second docking strips 141 extending into the first docking strip 134 are provided at both ends of the PCBA circuit board 140, a docking groove 139 is provided at the contact position between the first docking strip 134 and the second docking strip 141, a positioning rod 150 extending into the docking groove 139 is provided on the outer wall of the first docking strip 134, a chamfer is provided at one end of the positioning rod 150 close to the second docking strip 141, a constraint hole is provided at the contact position between the first docking strip 134 and the positioning rod 150, a telescopic spring 151 is sleeved on the outer wall of the positioning rod 150 located in the constraint hole, two ends of the telescopic spring 151 are respectively fixed to the outer wall of the positioning rod 150 and the inner wall of the constraint hole, one end of the telescopic spring 151 extends into the second docking strip 141, and a positioning hole is provided at the contact position between the second docking strip 141 and the telescopic spring 151.

[0038] When installing the PCBA circuit board 140, the PCBA circuit board 140 is placed under the two groups of first docking bars 134, and the second docking bars 141 at both ends are aligned with the docking grooves 139. Then, an upward external force is applied to the PCBA circuit board 140 to squeeze the second docking bars 141 to move laterally and compress the spring until the second docking bars 141 completely enter the docking grooves 139. The telescopic spring 151 releases the pressure to allow the positioning rod 150 to move laterally and the end portion to enter the positioning hole, thereby completing the installation of the PCBA circuit board 140.

[0039] Please refer to Figure 1 A matching circular hole is opened at the contact position between the restraining bar 131 and the base rod 135 , and the front and rear ends of the restraining bar 131 are in a non-contact state with the U frame 120 .

[0040] Ensure that the restraining strip 131 is lowered along the outer wall of the base rod 135 to achieve a buffering protection effect, while preventing the two ends from contacting the U frame 120 to generate additional resistance.

[0041] During use, an external force contacts the force-receiving plate 133 and generates a downward external force. At the same time, the constraint bars 131 at both ends slide down along the outer wall of the base rod 135. At this time, the spring 136 is compressed to buffer and cooperate with the external force, and at the same time prevent the external force from directly hitting the PCBA circuit board 140, effectively protecting the PCBA circuit board 140 from damage. At the same time, the first docking strip 134 at the bottom of the constraint bar 131 is synchronously lowered, and the pressure rod 137 is pushed down. The piston 138 connected to the end is lowered in the piston chamber 101, and the air in the piston chamber 101 is squeezed and transported through the air pipe 102 to the buffer frame 110 until it enters the airbag strip 111 to make it expand and become larger, and can contact the bottom of the descending PCBA circuit board 140 to prevent it from continuing to descend and avoid the rigid effect caused by reaching the limit. Similarly, the expansion of the airbag strip 111 can still offset the external force hitting the force-receiving plate 133, further providing better buffer protection. The parts not involved in this device are the same as or can be implemented using the prior art.

[0042] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations that do not contribute creatively to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A PCBA circuit board for a selfie stick with an anti-collision structure, comprising a bottom plate (100), characterized in that: A U frame (120) is fixed at the top of the bottom plate (100) near the left and right edges, and a buffer assembly (130) is provided between two groups of the U frames (120); The buffer assembly (130) comprises two groups of base rods (135) fixed in the U frame (120), the outer walls of the two groups of base rods (135) are slidably sleeved with constraint strips (131), the outer walls of the base rods (135) are sleeved with springs (136) at the bottom ends of the constraint strips (131), the bottom ends of the constraint strips (131) are located in the middle position of the two groups of springs (136), a first docking strip (134) is fixed, a PCBA circuit board (140) is installed between the two groups of the first docking strips (134), a horizontal strip (132) is fixed between the two groups of the constraint strips (131) and located above the PCBA circuit board (140), and a force-bearing plate (133) is provided between the two groups of the horizontal strips (132); A pair of pressure rods (137) are fixed to the bottom end of the first docking strip (134), and a piston (138) extending into the top end of the bottom plate (100) is provided at the bottom end of the pressure rod (137), and a piston cavity (101) is provided at the contact position between the top end of the bottom plate (100) and the piston (138).

2. The PCBA circuit board for a selfie stick with an anti-collision structure according to claim 1, characterized in that: A base rod (135) is longitudinally fixed in each group of the U-frames (120), and the upper and lower ends of the base rod (135) are respectively fixed to the U-frame (120) and the bottom plate (100).

3. The PCBA circuit board for a selfie stick with an anti-collision structure according to claim 1, characterized in that: A buffer frame (110) is fixed on the top of the bottom plate (100) below the PCBA circuit board (140), and a plurality of groups of airbag strips (111) connected to the buffer frame (110) are provided on the top of the buffer frame (110).

4. The PCBA circuit board for a selfie stick with an anti-collision structure according to claim 1, characterized in that: An air pipe (102) is provided in the bottom plate (100) on one side of the piston chamber (101), and two ends of the air pipe (102) are respectively connected to the piston chamber (101) and the buffer frame (110).

5. The PCBA circuit board for a selfie stick with an anti-collision structure according to claim 1, characterized in that: The force-bearing plate (133) is arranged in a W shape, and the outer walls around the force-bearing plate (133) are fixed to the horizontal bars (132) and the restraining bars (131).

6. The PCBA circuit board for a selfie stick with an anti-collision structure according to claim 1, characterized in that: The two ends of the PCBA circuit board (140) are provided with second docking strips (141) extending into the first docking strip (134); a docking groove (139) is provided at the contact position between the first docking strip (134) and the second docking strip (141); a positioning rod (150) is provided on the outer wall of the first docking strip (134) and extends into the docking groove (139); a chamfer is provided at one end of the positioning rod (150) close to the second docking strip (141); a restraining hole is provided at the contact position between the first docking strip (134) and the positioning rod (150); a telescopic spring (151) is sleeved on the outer wall of the positioning rod (150) in the restraining hole; two ends of the telescopic spring (151) are respectively fixed to the outer wall of the positioning rod (150) and the inner wall of the restraining hole; one end of the telescopic spring (151) extends into the second docking strip (141); a positioning hole is provided at the contact position between the second docking strip (141) and the telescopic spring (151).

7. The PCBA circuit board for a selfie stick with an anti-collision structure according to claim 1, characterized in that: A matching circular hole is provided at the contact position between the restraining bar (131) and the base rod (135), and the front and rear ends of the restraining bar (131) are in a non-contact state with the U frame (120).

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