Rod system supporting mechanism with adjustable axial length

Abstract

The utility model provides a rod system supporting mechanism with an adjustable axial length, a universal foot plate is sequentially connected with a first adjusting rod, a first limiting mechanism, a second adjusting rod, a second limiting mechanism and a fixed-length rod, and the other end of the fixed-length rod is connected with a joint bearing. The rod system supporting mechanism with the adjustable axial length is mature in machining process and convenient to install, the higher and higher requirements of mobile electronic equipment for the adjustable rod system supporting mechanism are met, the axial bearing capacity of the rod system supporting mechanism with the adjustable axial length is improved, the reliability of the rod system supporting mechanism with the adjustable axial length is improved, and the service life of the rod system supporting mechanism is prolonged. And the environmental adaptability of the length-adjustable rod system supporting mechanism is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rod support mechanism, and relates to a rod support mechanism with adjustable axial length. BACKGROUND

[0002] With the vigorous development of mobile (portable) electronic equipment, the rod support mechanism with adjustable axial length has attracted extensive attention, which provides flexible and reliable support conditions for mobile electronic equipment, and makes it possible for the rapid deployment and adjustment of mobile electronic equipment.

[0003] At present, the axial adjustment form of the rod support mechanism with adjustable axial length mainly has two types: friction type and limiting type.

[0004] The rod support mechanism with adjustable axial length of the friction type has various modes according to different implementation forms, among which the most common modes are eccentric wheel extrusion deformation friction type and wedge spring block extrusion friction type. The eccentric wheel extrusion deformation friction type adjustable rod support structure mainly utilizes the extrusion deformation of the eccentric wheel locking to the external rod to realize the adhesion to the internal rod, and then utilizes the extrusion friction force of the internal and external rods to realize the axial positioning, so as to realize the axial length adjustment of the rod support mechanism by adjusting the adhesion position of the internal and external rods and the extrusion pressure of the eccentric wheel. The wedge spring block extrusion friction type adjustable rod support structure has wedge spring blocks uniformly distributed at one end of the external rod, and utilizes the extrusion friction of the external retainer ring to the wedge spring blocks to realize the axial positioning of the internal and external rods. The friction type adjustable rod support mechanism can realize the continuous adjustment of the axial length of the support rod, but because the implementation principle is extrusion friction positioning, the axial stress capacity and reliability are greatly limited. In the case of large axial stress or frequent impact and vibration, the adjustment mechanism will fail, and then cause the damage of the whole system.

[0005] The limit type axial length adjustable rod system support mechanism also has various structure forms, wherein the ball spring limit mechanism cooperates with the limit hole most commonly. The ball spring limit adjustable rod system support mechanism has the retractable ball spring limit mechanism fixed in the internal rod system, the external rod system cooperates with the open limit hole, the relative position of the internal and external rod systems is adjusted by pressing the retractable ball spring limit mechanism, the ball spring limit mechanism is protruded from the limit hole after being adjusted to the position, and the axial adjustment of the ball spring limit adjustable support mechanism is realized. The other limit type adjustable rod system support mechanisms are similar to the ball spring limit mechanism, and only the structure form of the retractable limit mechanism is different. The limit type adjustable rod system support mechanism can conveniently and quickly realize the adjustment and limitation of the axial adjustment of the support rod system, but the retractable limit mechanism is limited by the structure form, and the excessive axial load can cause the retractable limit mechanism to be stuck, and further cause the failure of the entire adjustable rod system support mechanism. Meanwhile, under the action of the external impact and vibration, the retractable limit mechanism is prone to failure, and in addition, the external accidental touch or misoperation can also cause the failure of the entire limit type adjustable rod system support mechanism, and therefore the reliability of the limit type adjustable rod system support mechanism is also one of important factors limiting the use.

[0006] In summary, the current axial length adjustable rod system support mechanism has the shortcomings of limited axial bearing capacity and low reliability, and therefore designing an axial length adjustable rod system support mechanism with high axial bearing capacity and high reliability becomes an urgent problem to be solved. SUMMARY

[0007] In order to overcome the shortcomings of the prior art, the axial length adjustable rod system support mechanism is provided to meet the requirements of the mobile or portable electronic equipment on the high bearing capacity and high reliability of the axial length adjustable rod system support mechanism, the axial length adjustable rod system support mechanism has the advantages of reasonable design, high bearing capacity, high reliability, misoperation prevention design, free combination according to the requirements, and application to various support requirements under various conditions.

[0008] The technical scheme adopted by the present application to solve the technical problems is:

[0009] An axial length adjustable rod system support mechanism, comprising a universal foot disc (1), a first limit mechanism (2), a second limit mechanism (3), a first adjusting rod (4), a second adjusting rod (5), a fixed length rod (6) and a joint bearing (7), the universal foot disc (1) is connected to one end of the first adjusting rod (4), the other end of the first adjusting rod (4) is connected to one end of the second adjusting rod (5) through the first limit mechanism (2), the other end of the second adjusting rod (5) is connected to the second limit mechanism (3), the other end of the second limit mechanism (3) is connected to the fixed length rod (6), and the other end of the fixed length rod (6) is connected to the joint bearing (7).

[0010] Universal foot disc (1) including foot disc (101), foot (102), cross shaft sleeve (103), long shaft pin (104) and short shaft pin (105), universal foot disc (1) is connected with first adjusting rod (4) through M30 thread of foot (102), the bottom plate of foot disc (101) is uniformly distributed with several through holes, is firmly fixed with installation ground through ground nail, universal joint is formed through cross shaft sleeve (103), long shaft pin (104) and short shaft pin (105) cooperation between foot disc (101) and foot (102) in turn, adapts to the installation plane of various conditions, short shaft pin (105) is arranged in the centre of foot disc (101), short shaft pin (105) is hinged with long shaft pin (104) through cross shaft sleeve (103).

[0011] The cross shaft sleeve (103) is filled with grease inside, and the end face has a sealing ring to prevent external sand and dust from entering the inside of the shaft sleeve, ensuring the lubrication effect when the cross shaft sleeve (103) rotates with the long shaft pin (104) and the short shaft pin (105), thereby ensuring the flexibility of the universal foot disc (1).

[0012] The first limiting mechanism (2) includes an outer retaining ring (201), a retainer (202), a return spring (203), a spherical limiting body (204), a sealing snap ring (205), and a limiting pin (206). The retainer (202) is a cylindrical structure with a step, and is divided into two sections, a large diameter end and a small diameter end. The small diameter end has an outer retaining ring (201) around it. There are 18 spherical limiting bodies (204) evenly distributed circumferentially around the retainer (202), ensuring even force distribution and improving load capacity. The return spring (203) is located between the retainer (202) and the outer retaining ring (201), and the limiting pin (206) is located on one side of the end of the return spring (203) near the large diameter end. The movement of the outer retaining ring (201) is controlled by the limiting pin (206) to prevent external accidental touching or misoperation from causing the first limiting mechanism (2) to fail.

[0013] The first limiting mechanism (2) adjusts the relative position of the outer retaining ring (201) and the retainer (202) to achieve the limiting and loosening of the spherical limiting body (204). The return spring (203) restores the outer retaining ring (201) to the limiting position to prevent accidental loosening of the spherical limiting body (204) and improve the reliability of the first limiting mechanism (2).

[0014] The sealing snap ring (205) limits the extreme position of the outer retaining ring (201) to prevent it from falling off. At the same time, the sealing snap ring (205) and the outer retaining ring (201) form a sealed structure to prevent external sand and impurities from entering the interior of the first limiting mechanism (2), reducing the risk of jamming, failure, and wear and tear caused by external sand.

[0015] The axial length adjustable rod system support mechanism is connected with the electronic equipment connector through a quick lock pin and a joint bearing (7), the joint bearing (7) has a movable angle of ±13°, the axial length adjustable rod system support mechanism and the electronic equipment connector are convenient to dock, various forms of docking interfaces are adapted, the length of the first adjusting rod (4) is finely adjusted through the first limiting mechanism (2), the length of the second adjusting rod (5) is coarsely adjusted through the second limiting mechanism (3), and then the overall length of the axial length adjustable rod system support mechanism is adjusted, and the posture of the electronic equipment is controlled.

[0016] The quick lock pin is used in cooperation with the axial length adjustable rod system support mechanism, quick connection and disconnection between the axial length adjustable rod system support mechanism and the electronic equipment are realized, quick deployment of the mobile or portable electronic equipment is shortened to several hours or several minutes, and the application scenarios of the mobile or portable electronic equipment are greatly expanded.

[0017] The first adjusting rod (4) and the second adjusting rod (5) are axially marked with scale lines, the overall length of the axial length adjustable rod system support mechanism is accurately adjusted as required, and reliable contact of the universal foot disc (1) with the ground is realized through the self-adaptive capability of the universal foot disc (1).

[0018] The axial length adjustable rod system support mechanism has the advantages that the structure is reasonable, the processing technology is mature, and installation is convenient, and the requirements of mobile (portable) electronic equipment on the adjustable rod system support mechanism are solved.

[0019] First, the axial bearing capacity of the axial length adjustable rod system support mechanism is improved. By increasing the limiting body, the 18 spherical limiting bodies are evenly distributed in the circumferential direction of the limiting mechanism, the axial bearing capacity of the axial length adjustable rod system support mechanism is improved, and the axial stress condition of the axial length adjustable rod system support mechanism is optimized.

[0020] Second, the reliability of the axial length adjustable rod system support mechanism is improved. By increasing the limiting body, the single-point contact is optimized to multi-point uniform contact, the stress condition of the axial length adjustable rod system support mechanism is improved, and the reliability of the axial length adjustable rod system support mechanism is improved. By increasing the reset spring, the rebound of the outer retainer ring is ensured, and accidental failure of the limiting mechanism is avoided. By increasing the limiting pin, accidental failure of the limiting mechanism caused by accidental touching and accidental operation of the external environment is avoided, and the overall reliability of the axial length adjustable rod system support mechanism is further improved.

[0021] Third, the environmental adaptability of the length-adjustable rod support mechanism is improved. The joint bearing is used to improve the convenience of the length-adjustable rod support mechanism in connecting with electronic equipment. The sealing ring is used to reduce the adverse effects of external sand and dust on the limiting mechanism, and to avoid wear and jamming. The universal foot disc is used to improve the adaptability of the length-adjustable rod support mechanism to the installation ground. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view of the axial length-adjustable rod support mechanism.

[0023] Figure 2 It is a front view of the universal foot disc.

[0024] Figure 3 It is a sectional view of the limiting mechanism.

[0025] 1-universal foot disc, 2-first limiting mechanism, 3-second limiting mechanism, 4-first adjusting rod, 5-second adjusting rod, 6-fixed-length rod, 7-joint bearing, 101-foot disc, 102-foot, 103-cross shaft sleeve, 104-long shaft pin, 105-short shaft pin, 201-outer retainer ring, 202-retainer, 203-return spring, 204-spherical limiting body, 205-sealing ring, 206-limiting pin. DETAILED DESCRIPTION

[0026] The application will be further described below in combination with the drawings and examples.

[0027] The application provides an axial length-adjustable rod support mechanism, which has the following characteristics:

[0028] First, the axial bearing capacity is improved. The number of circumferential limiters is increased, and the circumferential layout of the limiters is adjusted, so that the original single-point contact and local uneven contact are improved to multi-point and uniform contact, greatly improving the axial bearing capacity of the adjustable rod support mechanism.

[0029] Second, the reliability of the adjustable rod support mechanism is improved. The low reliability of the friction type axial length-adjustable rod support mechanism using pre-tightening friction is avoided in principle, and the uniform distribution of multiple limiters improves the single-point limiting and local limiting of the limiting type axial length-adjustable rod support mechanism, improving the reliability of the adjustable rod support mechanism.

[0030] Third, the anti-misoperation mechanism is increased. The limiting pin is added to improve the standardization of the operation of the axial length-adjustable rod support mechanism, and the risk of failure of the adjustable rod support mechanism caused by misoperation is avoided.

[0031] Four, the adjustment range of the axial length adjustable rod system support mechanism is optimized: through the cooperation of two groups of adjustable rod system support mechanisms with different adjustment ranges, the adjustment range of the axial length adjustable rod system support mechanism is enriched and refined, and the adaptability of the axial length adjustable rod system support mechanism is improved.

[0032] Five, strong environmental adaptability: the bottom is provided with a universal foot plate, which can adapt to various types of support environments, the top is provided with a joint bearing, and the degree of connection with electronic equipment is high, and the axial length adjustable rod system support mechanism and the electronic equipment can be quickly disassembled and assembled through the quick locking pin.

[0033] In the embodiment, an axial length adjustable rod system support mechanism comprises a universal foot plate (1), a limiting mechanism 1 (2), a limiting mechanism 2 (3), an adjusting rod 1 (4), an adjusting rod 2 (5), a fixed length rod (6), and a joint bearing (7). The universal foot plate (1) further comprises a foot plate (101), a supporting leg (102), a cross shaft sleeve (103), a long shaft pin (104), and a short shaft pin (105). The limiting mechanism (2) further comprises an outer retainer ring (201), a retainer (202), a return spring (203), a spherical limiting body (204), a sealing ring (205), and a limiting pin (206). As shown in Figure 1 、 Figure 2 and Figure 3 .

[0034] An axial length adjustable rod system support mechanism comprises a universal foot plate (1), a first limiting mechanism (2), a second limiting mechanism (3), a first adjusting rod (4), a second adjusting rod (5), a fixed length rod (6), and a joint bearing (7). The universal foot plate (1) is connected to one end of the first adjusting rod (4), the other end of the first adjusting rod (4) is connected to one end of the second adjusting rod (5) through the first limiting mechanism (2), the other end of the second adjusting rod (5) is connected to the second limiting mechanism (3), the other end of the second limiting mechanism (3) is connected to the fixed length rod (6), and the other end of the fixed length rod (6) is connected to the joint bearing (7).

[0035] The universal foot plate (1) comprises a foot plate (101), a supporting leg (102), a cross shaft sleeve (103), a long shaft pin (104), and a short shaft pin (105). The universal foot plate (1) is connected to the first adjusting rod (4) through the M30 thread of the supporting leg (102). The bottom plate of the foot plate (101) is uniformly provided with four φ17mm through holes, which are firmly fixed to the installation ground through ground nails. The foot plate (101) and the supporting leg (102) are sequentially connected through the cross shaft sleeve (103), the long shaft pin (104), and the short shaft pin (105) to form a universal joint, which can adapt to various installation planes. The foot plate (101) is provided with a short shaft pin (105) in the center, and the short shaft pin (105) is hinged to the long shaft pin (104) through the cross shaft sleeve (103).

[0036] The cross shaft sleeve (103) is filled with lubricating grease, and the end face is provided with a sealing ring to prevent external sand and dust from entering the inside of the shaft sleeve, ensure the lubricating effect when the cross shaft sleeve (103) rotates with the long shaft pin (104) and the short shaft pin (105), and further ensure the flexibility of the universal foot disc (1).

[0037] The first limiting mechanism (2) comprises an outer check ring (201), a retainer (202), a return spring (203), a spherical limiting body (204), a sealing snap ring (205) and a limiting pin (206); the retainer (202) is in a cylindrical structure and is provided with a step, and the retainer is two-segmented, divided into a large-diameter end and a small-diameter end, the periphery of the small-diameter end is provided with the outer check ring (201), there are 18 spherical limiting bodies (204) which are uniformly distributed circumferentially around the retainer (202), to ensure that the entire retainer (202) is uniformly stressed and improve the carrying capacity, the return spring (203) is located between the retainer (202) and the outer check ring (201), and the limiting pin (206) is located on one side of one end of the return spring (203) close to the large-diameter end, to control the movement limit of the outer check ring (201) through the limiting pin (206), so as to avoid the failure of the first limiting mechanism (2) caused by external accidental touching and misoperation.

[0038] The first limiting mechanism (2) realizes the limiting and loosening of the spherical limiting body (204) by adjusting the relative position of the outer check ring (201) and the retainer (202); the outer check ring (201) is restored to the limiting position by the return spring (203), to avoid accidental loosening of the spherical limiting body (204) and improve the reliability of the first limiting mechanism (2).

[0039] The sealing snap ring (205) limits the limit position of the outer check ring (201), to avoid the falling of the outer check ring (201), and meanwhile, the sealing snap ring (205) cooperates with the outer check ring (201) to form a sealing structure, to ensure that external sand and impurities cannot enter the inside of the first limiting mechanism (2) and reduce the jamming, failure and wear failure of the first limiting mechanism (2) caused by external sand.

[0040] The axial length-adjustable rod system support mechanism is connected with the electronic equipment connecting piece through the joint bearing (7) by means of a φ10mm quick locking pin, the joint bearing (7) has an activity angle of ±13°, to improve the docking convenience of the axial length-adjustable rod system support mechanism and the electronic equipment connecting piece, adapt to various forms of docking interfaces, the length of the first adjusting rod (4) is finely adjusted through the first limiting mechanism (2), the length of the second adjusting rod (5) is coarsely adjusted through the second limiting mechanism (3), and then the overall length of the axial length-adjustable rod system support mechanism is adjusted to control the posture of the electronic equipment.

[0041] The quick locking pin is used in cooperation with the axial length adjustable rod system support mechanism to realize quick connection and disconnection between the axial length adjustable rod system support mechanism and the electronic equipment, so that quick deployment of the mobile or portable electronic equipment is shortened to several hours or several minutes, and application scenarios of the mobile or portable electronic equipment are greatly expanded.

[0042] The first adjusting rod (4) and the second adjusting rod (5) are axially marked with scale lines, precise adjustment of the overall length of the axial length adjustable rod system support mechanism is realized according to requirements, and reliable contact between the universal foot disc (1) and the installation ground is realized through the self-adaptive ability of the universal foot disc (1) in various installation grounds.

Claims

1. An axial length adjustable rod support mechanism, comprising a universal foot disc (1), a first limiting mechanism (2), a second limiting mechanism (3), a first adjusting rod (4), a second adjusting rod (5), a fixed length rod (6) and a joint bearing (7), characterized in that: the axial length adjustable rod support mechanism, the universal foot disc (1) is connected to one end of the first adjusting rod (4), the other end of the first adjusting rod (4) is connected to one end of the second adjusting rod (5) through the first limiting mechanism (2), the other end of the second adjusting rod (5) is connected to the second limiting mechanism (3), the other end of the second limiting mechanism (3) is connected to the fixed length rod (6), and the other end of the fixed length rod (6) is connected to the joint bearing (7).

2. The axial length adjustable rod support mechanism according to claim 1, characterized in that: the universal foot disc (1) comprises a foot disc (101), a foot (102), a cross shaft sleeve (103), a long shaft pin (104) and a short shaft pin (105), the universal foot disc (1) is connected to the first adjusting rod (4) through the M30 thread of the foot (102), the bottom plate of the foot disc (101) is uniformly provided with a plurality of through holes, is firmly fixed with the installation ground through ground nails, and the universal joint is formed through the cross shaft sleeve (103), the long shaft pin (104) and the short shaft pin (105) in sequence between the foot disc (101) and the foot (102), so that various installation planes are adapted, the short shaft pin (105) is arranged at the center of the foot disc (101), and the short shaft pin (105) is hinged with the long shaft pin (104) through the cross shaft sleeve (103).

3. The axial length adjustable rod support mechanism according to claim 2, characterized in that: the cross shaft sleeve (103) is filled with lubricating grease inside, and the end face is provided with a sealing ring to avoid external sand and dust from entering the inside of the shaft sleeve, so as to ensure the lubricating effect when the cross shaft sleeve (103) rotates with the long shaft pin (104) and the short shaft pin (105), and further ensure the flexibility of the universal foot disc (1).

4. The axial length adjustable rod support mechanism according to claim 1, characterized in that: the first limiting mechanism (2) comprises an outer retainer ring (201), a retainer (202), a return spring (203), a spherical limiting body (204), a sealing snap ring (205) and a limiting pin (206); the retainer (202) is in a cylindrical structure and is provided with a step, the retainer is two-segmented and is divided into a large-diameter end and a small-diameter end, the periphery of the small-diameter end is provided with the outer retainer ring (201), there are 18 spherical limiting bodies (204) which are uniformly distributed in the circumferential direction of the retainer (202), the force on the entire retainer (202) is uniformly ensured, the bearing capacity is improved, the return spring (203) is located between the retainer (202) and the outer retainer ring (201), the limiting pin (206) is located on one side of one end of the return spring (203) close to the large-diameter end, the movement of the outer retainer ring (201) is controlled through the limiting pin (206), and the first limiting mechanism (2) is prevented from being caused to fail by external accidental touch and misoperation.

5. The axial length adjustable rod support mechanism according to claim 4, characterized in that: The first limiting mechanism (2) adjusts the relative position of the outer retaining ring (201) and the retainer (202) to achieve the limiting and loosening of the spherical limiting body (204); the outer retaining ring (201) is restored to the limiting position by the reset spring (203), avoiding accidental loosening of the spherical limiting body (204) and improving the reliability of the first limiting mechanism (2).

6. The axial length adjustable truss support mechanism according to claim 4, characterized in that: The sealing ring (205) limits the limit position of the outer retaining ring (201), avoiding the outer retaining ring (201) from falling off, and at the same time, the sealing ring (205) and the outer retaining ring (201) cooperate to form a sealing structure, ensuring that external sand and dust impurities cannot enter the interior of the first limiting mechanism (2), reducing the jamming, failure and wear failure of the first limiting mechanism (2) caused by external sand and dust.

7. The axial length adjustable truss support mechanism according to claim 1, characterized in that: The axial length adjustable truss support mechanism is connected with the electronic equipment connector through the joint bearing (7) using the quick lock pin, the joint bearing (7) has a movable angle of ±13°, the length of the first adjusting rod (4) is fine adjusted by the first limiting mechanism (2), the length of the second adjusting rod (5) is coarse adjusted by the second limiting mechanism (3), and then the overall length of the axial length adjustable truss support mechanism is adjusted to control the attitude of the electronic equipment.

8. The axial length adjustable truss support mechanism according to claim 7, characterized in that: The quick lock pin is used in cooperation with the axial length adjustable truss support mechanism to realize the quick connection and disconnection between the axial length adjustable truss support mechanism and the electronic equipment.

9. The axial length adjustable truss support mechanism according to claim 1, characterized in that: The first adjusting rod (4) and the second adjusting rod (5) are axially marked with scale lines, and the overall length of the axial length adjustable truss support mechanism is accurately adjusted according to the need, and the self-adaptive ability of the universal foot disc (1) is used to realize reliable contact between the universal foot disc (1) and the installation ground in various installation sites.

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