Ball head rotating shaft device and equipment using same

Abstract

The utility model belongs to the technical field of ball head rotating structures, and discloses a ball head rotating shaft device and equipment using the ball head rotating shaft device, a first shell and a second shell are fixed in a mode of sticking, fixing and matching with clamping of a locking lantern ring, the installation mode is simple, and the installation efficiency is high; the connection stability of the ends, away from the ball head rotating shaft, of the first shell and the second shell can be guaranteed in a pasting and fixing mode, and then the locking lantern ring and the ball head are arranged at the same end of the outer shell. The acting force of the elastic sleeve acting on the second shell and the first shell and the acting force of the shaft rod acting on the first shell or the second shell when the shaft rod rotates to a limit position to be in contact with the inner wall of the shaft penetrating hole can be effectively avoided, so that the second shell at the end where the shaft rod is located is separated from the first shell; the connection stability of the second shell and the end, provided with the ball rotating shaft, of the first shell is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball head rotation structures, and particularly relates to a ball head rotating shaft device and a device using the ball head rotating shaft device. Background Art

[0002] In order to achieve multi-degree-of-freedom adjustment for existing electronic products such as cameras, a ball head rotating shaft device is usually used. Specifically, the ball head rotating shaft device includes two brackets and a ball head. The two brackets are connected to form a cavity, and the ball head is rotatably arranged in the cavity. The ball head is connected with a bracket that penetrates out of the cavity.

[0003] There is hard contact between the ball head and the bracket, and the rotation of the ball head is not flexible. For this reason, the prior art proposes to set a wear-resistant elastic member between the ball head and the bracket. During the rotation of the ball head, the ball head presses the elastic member to deform, and the elastic member exerts a reaction force on the ball head. The ball head relies on the interference amount and pressure with the elastic member to obtain a continuous and stable torque value, making the rotation of the ball head more stable and smooth.

[0004] However, it is found that when actually assembling the above ball head rotating shaft device, after adding the elastic member, the assembly efficiency of the ball head rotating shaft device will be greatly reduced, and the structural stability after assembly is also reduced. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a ball head rotating shaft device and a device using the ball head rotating shaft device, which can improve the assembly efficiency and structural stability.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] The ball head rotating shaft device includes:

[0008] A housing, the housing includes a first shell and a second shell with opposite openings. The first shell and the second shell are fixedly adhered to form an installation cavity and a through-shaft hole communicated with the installation cavity;

[0009] A ball head rotating shaft, including a shaft rod and a ball head. The ball head is rotatably arranged in the installation cavity. One end of the shaft rod is connected to the ball head, and the other end passes through the through-shaft hole and penetrates out of the housing;

[0010] An elastic sleeve, the elastic sleeve covers at least part of the ball head and is clamped between the outer wall of the ball head and the inner wall of the installation cavity;

[0011] A locking collar, the locking collar is sleeved outside the housing, and the first shell and the second shell are clamped by the locking collar. The locking collar and the ball head are located at the same end of the housing.

[0012] As an implementable embodiment of the above ball head rotating shaft device, the first housing and the second housing are fixedly adhered by AB glue, or hot melt glue, or yellow glue.

[0013] As an implementable embodiment of the above ball head rotating shaft device, one of the elastic sleeve and the first housing is provided with a directional protrusion, and the other is provided with a directional groove, and the directional protrusion is inserted into the directional groove.

[0014] As an implementable embodiment of the above ball head rotating shaft device, the elastic sleeve is a silica gel sleeve, or a nylon sleeve, or a polyurethane sleeve.

[0015] As an implementable embodiment of the above ball head rotating shaft device, one of the locking collar and the outer housing is provided with a locking protrusion, and the other is provided with a locking groove, and the locking protrusion is installed in the locking groove with an interference fit.

[0016] As an implementable embodiment of the above ball head rotating shaft device, one of the first housing and the second housing is provided with a positioning protrusion, and the other is provided with a positioning groove, and the positioning protrusion is inserted into the positioning groove.

[0017] As an implementable embodiment of the above ball head rotating shaft device, the outer housing is a plastic structural member, and a metal sheet is embedded in the inner wall of at least one of the first housing and the second housing, and the metal sheet is located on the inner wall of the housing forming the shaft hole.

[0018] As an implementable embodiment of the above ball head rotating shaft device, the metal sheet is disposed opposite to the locking collar along the radial direction of the shaft hole.

[0019] As an implementable embodiment of the above ball head rotating shaft device, a receiving chamber communicating with the installation cavity is further defined between the first housing and the second housing, a wire passing hole is provided on the ball head rotating shaft, one end of the wire passing hole penetrates to the surface of the ball head and communicates with the receiving chamber, and the other end penetrates to one end of the shaft rod outside the outer housing.

[0020] To achieve the above object, the present invention further provides a device, which includes a device main body and the ball head rotating shaft device provided in any of the above solutions, and the device main body is installed on the outer housing.

[0021] Advantageous effects of the present invention: For the ball head rotating shaft device provided by the present invention and the device using the ball head rotating shaft device, the elastic sleeve is clamped between the outer wall of the ball head and the inner wall of the installation cavity, and the elastic sleeve is used to obtain a stable torque value for the ball head, so that the rotation of the ball head is more stable and smooth.

[0022] When assembling the ball head rotating shaft device, first, just sleeved the elastic sleeve on the ball head, then placed the elastic sleeve in the first housing with the opening facing upward, applied adhesive on the contact surface of the first housing that can contact the second housing, and then pressed the second housing with the opening facing downward onto the first housing from top to bottom and kept the pressure for a period of time to paste and fix the second housing and the first housing to form a complete outer shell. During the pressure-holding time, sleeved the locking collar on the outer shell to clamp the second housing and the first housing by using the locking collar. The first housing and the second housing are fixed by the way of paste fixation combined with clamping by the locking collar. The installation method is relatively simple and the installation efficiency is high.

[0023] By using the paste fixation method, the connection stability of the first housing and the second housing at the end far from the ball head rotating shaft can be ensured. Then, setting the locking collar and the ball head at the same end of the outer shell can effectively prevent the elastic sleeve from acting on the second housing and the first housing, and the force exerted by the shaft rod on the first housing or the second housing when the shaft rod rotates to the limit position and contacts the inner wall of the through-shaft hole, so as to avoid the separation of the second housing and the first housing at the end where the shaft rod is located, and improve the connection stability of the second housing and the first housing at the end where the ball head rotating shaft is provided. Brief Description of the Drawings

[0024] Figure 1 is a cross-sectional view of the ball head rotating shaft device provided by an embodiment of the present invention;

[0025] Figure 2 is Figure 1 a partial enlarged schematic view of part A in

[0026] In the figure:

[0027] 1. Outer shell; 11. First housing; 111. Orientation groove; 12. Second housing; 13. Locking protrusion; 14. Through-shaft hole; 15. Accommodation chamber; 16. Installation cavity;

[0028] 2. Ball head rotating shaft; 21. Ball head; 22. Shaft rod; 23. Threading hole;

[0029] 3. Elastic sleeve; 31. Orientation protrusion;

[0030] 4. Locking collar; 41. Locking groove;

[0031] 5. Metal sheet. Detailed Description of the Embodiment

[0032] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that only part of the structure related to the present invention is shown in the drawings for the convenience of description, rather than all the structures.

[0033] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above the top of", and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below the bottom of", and "under the bottom of" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0035] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0036] The embodiment of the present utility model provides a ball head rotating shaft device and a device using the ball head rotating shaft device. The device includes a device main body and the ball head rotating shaft device, and the device main body can be rotated by using the ball head rotating shaft device to meet the use requirements. The device main body can be electronic products such as a display, a table lamp, etc., and will not be specifically limited herein.

[0037] As Figure 1 and Figure 2 shown, the ball head rotating shaft device includes a housing 1, a ball head rotating shaft 2, an elastic sleeve 3, and a locking collar 4. Among them, the housing 1 includes a first housing 11 and a second housing 12 with opposite openings. The first housing 11 and the second housing 12 are fixedly adhered to form an installation cavity 16 and a shaft through hole 14 communicating with the installation cavity 16.

[0038] The ball head rotating shaft 2 includes a shaft rod 22 and a ball head 21. The ball head 21 is rotatably arranged in the installation cavity 16. One end of the shaft rod 22 is connected to the ball head 21, and the other end passes through the shaft hole 14 and penetrates out of the housing 1. The elastic sleeve 3 is wrapped around at least part of the ball head 21 and is clamped between the outer wall of the ball head 21 and the inner wall of the installation cavity 16. The locking collar 4 is sleeved outside the housing 1, and the first housing 11 and the second housing 12 are clamped by the locking collar 4. The locking collar 4 and the ball head 21 are located at the same end of the housing 1.

[0039] The elastic sleeve 3 is clamped between the outer wall of the ball head 21 and the inner wall of the installation cavity 16. By using the elastic sleeve 3, the ball head 21 obtains a stable torque value, making the rotation of the ball head 21 more stable and smooth.

[0040] When assembling the ball head rotating shaft device, first, the elastic sleeve 3 is sleeved outside the ball head 21, and then the elastic sleeve 3 is placed in the first housing 11 with the opening facing upward. Adhesive is applied to the contact surface of the first housing 11 that can contact the second housing 12. Then, the second housing 12 is pressed downward onto the first housing 11 from top to bottom and kept under pressure for a period of time to paste and fix the second housing 12 and the first housing 11 to form a complete housing 1. During the pressure-holding time, the locking collar 4 is sleeved on the housing 1 to clamp the second housing 12 and the first housing 11 by using the locking collar 4. The first housing 11 and the second housing 12 are fixed by the combination of paste fixation and clamping by the locking collar 4. The installation method is relatively simple and the installation efficiency is high.

[0041] The connection stability of the first housing 11 and the second housing 12 at the end far from the ball head rotating shaft 2 can be ensured by using the paste fixation method. Then, the locking collar 4 and the ball head 21 are arranged at the same end of the housing 1, which can effectively avoid the separation of the second housing 12 and the first housing 11 at the end where the shaft rod 22 is located due to the acting force of the elastic sleeve 3 on the second housing 12 and the first housing 11, and the acting force of the shaft rod 22 on the first housing 11 or the second housing 12 when the shaft rod 22 rotates to the limit position and contacts the inner wall of the shaft hole 14, improving the connection stability of the second housing 12 and the first housing 11 at the end where the ball head rotating shaft 2 is arranged.

[0042] In some embodiments, as Figure 1 shown, the first housing 11 and the second housing 12 are paste-fixed by AB glue. Through experimental verification, it is found that using AB glue to paste and fix the first housing 11 and the second housing 12 can increase the bonding force between the first housing 11 and the second housing 12 and meet the large acting force exerted by the elastic sleeve 3 on the first housing 11 and the second housing 12 after the elastic sleeve 3 is installed.

[0043] In other embodiments, the first housing 11 and the second housing 12 can also use hot melt glue, or yellow glue, etc.

[0044] In some embodiments, the elastic sleeve 3 is a silicone sleeve. In other embodiments, the elastic sleeve 3 can also be a nylon sleeve, a polyurethane sleeve, or other elastic structures, and examples are not given one by one here.

[0045] The setting of the elastic sleeve 3 may cause separation when the AB glue has not firmly bonded the first housing 11 and the second housing 12. Therefore, when assembling the ball head rotating shaft device, first put the elastic sleeve 3 on the outside of the ball head 21, then place the elastic sleeve 3 in the first housing 11 with the opening facing upward, apply an adhesive on the contact surface of the first housing 11 that can contact the second housing 12, and then press the second housing 12 with the opening facing downward onto the first housing 11 from top to bottom and keep it under pressure for a period of time. This not only helps the AB glue to firmly bond the first housing 11 and the second housing 12 after curing, but also facilitates clamping the second housing 12 and the first housing 11 with the locking collar 4 later, reducing the installation difficulty of the locking collar 4.

[0046] To improve the assembly efficiency, while applying pressure to the first housing 11 and the second housing 12, heat the first housing 11 and the second housing 12 at the position where the AB glue is located, which can shorten the curing time of the AB glue and improve the assembly efficiency of the ball head rotating shaft device.

[0047] In some embodiments, one of the first housing 11 and the second housing 12 is provided with a positioning protrusion, and the other is provided with a positioning groove, and the positioning protrusion is inserted into the positioning groove. With this setting, the second housing 12 and the first housing 11 can be positioned, so that the end face of the second housing 12 that needs to contact the first housing 11 accurately contacts the AB glue on the first housing 11.

[0048] It should be noted that the positioning protrusion can be a reinforcing rib convexly provided on the inner wall of the outer shell 1, a positioning pin, or a protrusion formed by the structure of the inner wall of the outer shell 1 itself, etc. The positioning groove is provided corresponding to the positioning protrusion, and no specific limitation is given here.

[0049] In some embodiments, as Figure 1 and Figure 2 shown, one of the locking collar 4 and the outer shell 1 is provided with a locking protrusion 13, and the other is provided with a locking groove 41, and the locking protrusion 13 is installed in the locking groove 41 with an interference fit. With this setting, the locking effect of the locking collar 4 on the first housing 11 and the second housing 12 can be improved, the connection firmness between the locking collar 4 and the outer shell 1 can be improved, and the locking collar 4 can be prevented from detaching from the outer shell 1.

[0050] Exemplarily, the locking protrusion 13 is provided on the outer wall of the outer shell 1, and the locking groove 41 is provided on the inner circumferential wall of the locking collar 4. In other embodiments, the locking groove 41 can also be provided on the outer wall of the outer shell 1, and the locking protrusion 13 is provided on the inner circumferential wall of the locking collar 4.

[0051] In some embodiments, the locking protrusion 13 is a trapezoidal boss. Along the radial direction away from the central axis of the shaft rod 22, the distance between the opposite side walls of the trapezoidal boss gradually decreases in the axial direction of the shaft rod 22. With such a setting, it is convenient for the locking protrusion 13 to be embedded into the locking groove 41.

[0052] It should be noted that the locking protrusion 13 can be an annular boss provided on the outer wall of the housing 1, or can be a plurality of bosses arranged at intervals in the circumferential direction of the shaft rod 22, and will not be specifically limited here.

[0053] In some embodiments, the locking collar 4 is a metal ring, and the locking collar 4 is sleeved on the outside of the housing 1 with an interference fit. During the process of sleeving the locking collar 4 on the housing 1, the locking collar 4 deforms so that the locking protrusion 13 is embedded into the locking groove 41, realizing that the locking collar 4 is sleeved on the outside of the housing 1 with an interference fit, further improving the connection firmness between the locking collar 4 and the housing 1, and effectively preventing the locking collar 4 from detaching from the housing 1.

[0054] In some embodiments, as Figure 1 and Figure 2 shown, one of the elastic sleeve 3 and the first housing 11 is provided with a directional protrusion 31, and the other is provided with a directional groove 111, and the directional protrusion 31 is inserted into the directional groove 111.

[0055] Exemplarily, the outer wall of the elastic sleeve 3 protrudes with a directional protrusion 31, and the inner wall of the first housing 11 is provided with a directional groove 111. When placing the elastic sleeve 3 equipped with the ball head 21 into the first housing 11, align the directional protrusion 31 and insert it into the directional groove 111 to position the elastic sleeve 3 and the first housing 11, which helps to limit the rotation direction of the ball head rotating shaft 2.

[0056] In some embodiments, the housing 1 is a plastic structural member to reduce the weight and cost of the ball head rotating shaft device.

[0057] In some embodiments, as Figure 1 and Figure 2 shown, a metal sheet 5 is embedded in the inner wall of at least one of the first housing 11 and the second housing 12, and the metal sheet 5 is located on the inner wall of the housing forming the shaft hole 14. Exemplarily, the inner walls of both the first housing 11 and the second housing 12 are embedded with the metal sheet 5.

[0058] Exemplarily, the shaft hole 14 is formed by the first housing 11 and the second housing 12, and the shaft rod 22 passes through the shaft hole 14 and exits the housing 1. The housing 1 rotates relative to the ball head 21, so that the structural strength requirement for the housing structure near the shaft hole 14 is relatively high. By embedding the metal sheet 5 on the inner wall of the housing forming the shaft hole 14, it is beneficial to improve the structural strength of the housing 1 near the shaft hole 14.

[0059] It should be noted that the metal sheet 5 can be injection molded on the corresponding housing.

[0060] In some embodiments, the provision of the elastic sleeve 3 will improve the structural strength of the position where the shell 1 contacts the elastic sleeve 3. To this end, the metal sheet 5 is arranged radially opposite to the locking ring 4 along the through-shaft hole 14 to prevent the shell 1 from cracking under the extrusion of the elastic sleeve 3.

[0061] In some embodiments, Figure 1 and Figure 2 As shown, a receiving chamber 15 connected to the mounting cavity 16 is also formed between the first shell 11 and the second shell 12, and a threading hole 23 is provided on the ball head shaft 2, one end of the threading hole 23 passes through the surface of the ball head 21 and is connected to the receiving chamber 15, and the other end passes through the end of the shaft 22 located outside the outer shell 1.

[0062] When the ball head pivot device is applied to an electronic device, the device body of the electronic device is installed on the housing 1. Considering the wiring requirements of the device body, the wires connected to the device body are passed through the accommodating chamber 15 and then passed through the housing 1 through the wire threading hole 23, so that the wires will not affect the relative rotation between the housing 1 and the ball head 21.

[0063] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Ball head rotating shaft device, characterized in that, Comprising: A housing (1), the housing (1) includes a first housing body (11) and a second housing body (12) with opposite openings, the first housing body (11) and the second housing body (12) are adhesively fixed to enclose an installation cavity (16), and a shaft through-hole (14) communicating with the installation cavity (16); A ball head rotating shaft (2), including a shaft rod (22) and a ball head (21), the ball head (21) is rotatably arranged in the installation cavity (16), one end of the shaft rod (22) is connected to the ball head (21), and the other end passes through the shaft through-hole (14) and penetrates out of the housing (1); An elastic sleeve (3), the elastic sleeve (3) covers at least part of the ball head (21) and is clamped between the outer wall of the ball head (21) and the inner wall of the installation cavity (16); A locking collar (4), the locking collar (4) is sleeved outside the housing (1), and the first housing body (11) and the second housing body (12) are clamped by the locking collar (4), and the locking collar (4) and the ball head (21) are located at the same end of the housing (1).

2. The ball head shaft device according to claim 1, wherein The first housing body (11) and the second housing body (12) are adhesively fixed by AB glue, or hot melt glue, or yellow glue.

3. The ball head rotating shaft device according to claim 1, characterized in that, One of the elastic sleeve (3) and the first housing body (11) is provided with a directional protrusion (31), and the other is provided with a directional groove (111), and the directional protrusion (31) is inserted into the directional groove (111).

4. The ball head rotating shaft device according to claim 1, characterized in that, The elastic sleeve (3) is a silicone sleeve, or a nylon sleeve, or a polyurethane sleeve.

5. The ball head rotating shaft device according to claim 1, characterized in that, One of the locking collar (4) and the housing (1) is provided with a locking protrusion (13), and the other is provided with a locking groove (41), and the locking protrusion (13) is installed in the locking groove (41) by interference fit.

6. The ball head rotating shaft device according to claim 1, characterized in that One of the first housing body (11) and the second housing body (12) is provided with a positioning protrusion, and the other is provided with a positioning groove, and the positioning protrusion is inserted into the positioning groove.

7. The ball head rotating shaft device according to any one of claims 1 to 6, characterized in that, The housing (1) is a plastic structural member, and a metal sheet (5) is embedded in the inner wall of at least one of the first housing body (11) and the second housing body (12), and the metal sheet (5) is located on the inner wall of the housing body forming the shaft through-hole (14).

8. The ball head rotating shaft device according to claim 7, characterized in that The metal sheet (5) is arranged opposite to the locking collar (4) along the radial direction of the shaft through-hole (14).

9. The ball head rotating shaft device according to any one of claims 1 to 6, characterized in that A receiving chamber (15) communicating with the installation cavity (16) is further enclosed between the first housing body (11) and the second housing body (12), a wire through-hole (23) is arranged on the ball head rotating shaft (2), one end of the wire through-hole (23) penetrates through to the surface of the ball head (21) and communicates with the receiving chamber (15), and the other end penetrates through to the end of the shaft rod (22) outside the housing (1).

10. The device is characterized in that, Comprising a device main body and the ball head rotating shaft device according to any one of claims 1 to 9, and the device main body is installed on the housing (1).

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