CN113719528A

CN113719528A - Clamping connecting piece and adjustable connecting structure comprising same

Info

Publication number: CN113719528A
Application number: CN202110782832.3A
Authority: CN
Inventors: 丁欣欣; 丁泽成; 王文广; 周东珊; 龚威; 蔡帅帅
Original assignee: Zhejiang Yasha Decoration Co Ltd
Current assignee: Zhejiang Yasha Decoration Co Ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-11-30

Abstract

The purpose of the present invention is to provide a snap connector that can precisely telescopically adjust its own length and an adjustable connecting structure including the snap connector. Two symmetrical snap connectors, by fixing the two ends of the snap connectors with the movable connector installed on the ball head and the base fixed on the ground, the movable connector can be rotated around the center of the ball head to any angle When the position is adjusted, the threaded structure on the snap connection can be adjusted by rotation, so that each snap connection is in a tensioned state, so that the movable connection is completely fixed relative to the ball head and the base at this angular position.

Description

Clamping connecting piece and adjustable connecting structure comprising same

Technical Field

The invention relates to the field of movable connecting structures, in particular to a clamping connecting piece and an adjustable connecting structure comprising the same.

Background

In many fields at present, it is often necessary to realize the relative angle change adjustment between two components and the fixation on a specific relative position, and such a structure is usually realized by a ball head connecting structure. The common ball head connecting structure comprises a ball head fixedly connected with a first component and a spherical hole formed in another second component and sunken inwards, and the second component rotates around the ball head in a sphere movement range relative to the first component by inserting and installing the ball head in the spherical hole; the outer surface of the ball head is abutted and attached to the inner surface of the spherical hole, so that the relative position relation between the first component and the second component is fixed. In the actual installation and use process, friction force between two parts is usually utilized to realize fixation at a certain position in the ball head connecting structure, when one part is collided by instant external force or bears over-limit load, the stable position relation between the two parts can be damaged, so that the two parts rotate, and one part can topple to the side or even cause the ball head connecting structure to be damaged.

The universal double-sided portable mobile phone support disclosed in the chinese utility model patent document with the publication number CN210297811U includes a first panel, a second panel, a nut and a nano traceless removable adhesive; the novel ball joint comprises a first panel, a second panel, a third panel, a fourth panel, a fifth panel, a sixth panel, a seventh panel, a fifth panel, a sixth panel, a seventh panel, a sixth panel, a seventh panel, a sixth panel, a seventh panel, a sixth panel, a seventh panel, a sixth panel, a seventh panel, a sixth panel, a seventh panel, a sixth panel. The connection mode realizes the connection and fixation between the ball head and the ball socket, the elastic ball socket is contracted inwards by rotating the screw cap to be tightly attached to the surface of the ball head, and the friction force between the two parts realizes the fixation of the relative positions.

In the connection structure of the above scheme, the connection structure is limited by the characteristics of the plastic or rubber material adopted by the elastic ball socket, and is easily contracted or expanded under the influence of temperature change, so that the magnitude of the friction force on the contact surface is changed, the friction force can not generate enough supporting and fixing effects on the parts connected with the ball head part any more, and the upper part is deflected and inclined or even toppled and damaged. Meanwhile, the connecting mechanism in the mode has weak capacity of resisting external collision interference, is very easy to deflect, and cannot realize stable and firm positioning connection between two parts at a certain relative angle.

In view of the above problems, the present invention provides a secure and reliable snap connection and a stable and secure adjustable connection structure including the same.

Disclosure of Invention

The invention provides a protective connecting piece capable of effectively protecting a ball head connecting structure and a safe ball head movable connecting structure comprising the protective connecting piece.

The technical purpose of the invention is realized by the following technical scheme:

a clamping connecting piece comprises a first connecting unit, a second connecting unit and a flexible connecting section, wherein the first connecting unit is used for being matched and fixed with a base, the second connecting unit is used for being matched and fixed with a movable part arranged on the base, and the flexible connecting section is arranged between the first connecting unit and the second connecting unit; the first connecting unit comprises an adjustable connecting structure fixedly connected with the lower end of the flexible connecting section and a clamping connecting structure fixedly connected with an inwards concave socket arranged on the base.

Preferably, the adjustable connecting structure comprises a connecting rod in a cylindrical shape and a fitting piece positioned below the connecting rod; the connecting rod is arranged on the matching piece through a threaded structure and can axially ascend or descend along the adjusting threaded hole through rotating clockwise or anticlockwise.

Preferably, the second connecting unit comprises a connecting bolt, the large end of the connecting bolt is fixedly connected with the upper end of the flexible connecting section, and a fastening thread section for fixedly connecting with the movable member is formed on the connecting bolt.

Preferably, the engaging member may be divided into two independent parts, namely a main body part and an engaging part, a hinge structure is formed between the main body part and the engaging part, and the engaging part can rotate relative to the main body part around a rotation center of the hinge; an elastic component used for driving the clamping part to expand outwards so that the clamping part is in contact with the inner wall of the concave socket formed on the base in a fitting manner is arranged between the clamping part and the main body part or between the opposite clamping parts.

Preferably, the outward protrusion of the engaging portion forms a protruding edge for being inserted into a slot in the concave socket on the base.

The utility model provides an adjustable coupling assembling, includes base and movable part, movable part is connected with the base through bulb swing joint structure, and movable part can rotate its characterized in that around bulb swing joint structure's sphere center for the base: the clamping connecting piece is arranged between the base and the movable part, an inner concave socket used for being matched with the first connecting unit is arranged on the base, and the inner space of the inner concave socket is sunken towards the side surface to form a clamping groove used for being matched with the clamping part.

Preferably, the inner wall of the concave socket is formed with a guiding inclined plane structure with a radial dimension gradually reduced from outside to inside.

Preferably, the present invention is characterized in that: the card slot also comprises a self-locking slot formed by extending an inner space in the direction opposite to the insertion direction of the first connecting unit, and the card part extend in the corresponding direction to form a self-locking part corresponding to the self-locking slot.

Preferably, the bottom of the concave socket is provided with an elastic cushion layer which is used for abutting against the lower surface of the clamping part to enable the clamping part to be tightly attached to the clamping groove.

The invention preferably comprises a plurality of groups of clamping connecting pieces which are symmetrically arranged on two sides of the ball head in pairs.

In summary, the invention can achieve the following beneficial effects:

1. the clamping connecting piece is connected with the matching piece through the connecting rod with the threads, the connecting rod is rotated to enable the connecting rod to move along the axial direction of the threaded hole in the matching piece, and the formed threaded structure is a standard structure, and the number of rotating turns accurately corresponds to the moving amount of the rod piece, so that the whole length of the clamping connecting piece can be accurately controlled.

2. In the adjustable connecting assembly, the clamping connecting piece is inwards contracted by an extrusion acting force, and the end part of the clamping connecting piece is fixedly connected with the base in a mode of removing outward springback and expansion of the extrusion acting force, so that the clamping connecting piece can not fall off before parts are damaged when the clamping connecting piece is subjected to a stretching acting force, has good connection stability, is simple and reliable, is convenient to disassemble and assemble, and has wide application prospect.

3. The inner concave socket is arranged in the adjustable connecting component to form a circular truncated cone-shaped structure with the size shrinking from outside to inside to be smaller, the clamping part on the clamping connecting piece is directly guided to shrink inwards when the adjustable connecting component is inserted and installed, an inward acting force does not need to be applied to the outer wall surface of the clamping part by a user, the installation operation steps are simplified, and the assembling process is simpler and more efficient.

4. According to the adjustable connecting assembly, the self-locking structure is formed between the clamping part and the concave insertion opening, so that the situation of part separation under the stretching action is avoided, and the adjustable connecting assembly has good connecting stability and safety.

5. According to the adjustable connecting assembly, the thread structures on the clamping connecting pieces which are symmetrically arranged relative to the ball head structure can be adjusted at the same time, so that the movable part can be fixed and locked at any angle position in a certain range of three-dimensional space relative to the base, and the accurate and stable positioning of the ball head in a connecting state is realized.

Drawings

FIG. 1 is a schematic view showing the connection relationship between the main portions of the snap connection;

FIG. 2 is a detailed structural diagram of each part of the snap-fit connector;

FIG. 3 is a schematic view of the structure of each part of the engaging member and the base;

FIG. 4 is a schematic view of the engagement connector and the base in a state of engagement;

FIG. 5 is a schematic view of the connection between portions of an adjustable connection assembly including snap-fit connectors;

fig. 6 is a schematic view of the adjustable connection assembly adjusted to an angular position and secured.

In the figure:

1-snap connection;

2-a first connection unit, which is,

3-second connection unit, 3 a-connection bolt, 3 aa-fastening threaded section;

4-flexible connecting section;

5-moving parts;

6-base, 6 a-concave socket, 6 aa-neck, 6 aaa-self-locking groove,

6 b-elastic cushion layer, 6 c-guide slope structure;

7-adjustable connecting structure, 7 a-connecting rod, 7 aa-adjusting thread section,

8-clamping connection structure, 8 a-matching piece, 8 aa-main body part, 8 ab-clamping part,

8 aba-self-locking part, 8 b-adjusting threaded hole, 8 c-hinge structure, 8 d-elastic part.

Detailed Description

The following specific examples are given by way of illustration only and not by way of limitation, and it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made in the examples without inventive faculty, and yet still be protected by the scope of the claims.

The scheme is realized by the following technical means:

example 1: a clamping connecting piece 1 capable of telescopically adjusting the distance between two end parts comprises a first connecting unit 2, a second connecting unit 3 and a flexible connecting section 4 connected between the two connecting units. The first connection unit 2 can in turn be divided into two parts, an adjustable connection 7 and a snap connection 8. The adjustable connecting structure 7 comprises a cylindrical connecting rod 7a made of aluminum alloy and a fitting piece 8a made of the same aluminum alloy; a spiral external thread is arranged on the outer side of the connecting rod 7a to form an adjusting threaded section 7aa on the upper side and the lower side of the connecting rod 7 a; the fitting piece 8a is integrally in the shape of a hollow sleeve with an open lower surface, the cross section of the fitting piece 8a in the vertical direction is in an inverted U shape, and an adjusting threaded hole 8b which is vertically communicated and corresponds to the external thread on the connecting rod 7a is formed in the center of the fitting piece 8 a. The engaging element 8a includes a main body 8aa and an engaging portion 8ab, a lower end of the engaging portion 8ab extends outward to form a protrusion, and an upper end thereof is connected to the main body 8aa through a hinge structure 8 c. Specifically, the engaging portion 8ab includes an elongated rod member with an upper opening, the lower end of the main body portion 8aa protrudes downward and extends to form an opening, a double-headed rivet is used to simultaneously pass through the through holes of the engaging portion 8ab and the main body portion 8aa to movably connect the two portions, and the engaging portion 8ab can rotate within a certain angle range relative to the center of the hinge. The plurality of groups of pairwise symmetrical strip-shaped rod pieces are arranged below the main body part 8aa, a compression spring is connected between each pair of rod pieces to serve as an elastic part 8d, the rod pieces positioned on two sides can be extruded and shrunk to be arranged inside the concave insertion opening 6a, acting force expanding towards two sides is provided for the two opposite rod pieces, and the outer side face of the clamping part 8ab formed by the rod pieces is tightly attached to the inner wall face of the concave insertion opening 6 a. Preferably, a torsion spring may be used as the elastic member 8d, and both ends of the torsion spring are respectively bonded and fixedly connected with the rod member of the engaging portion 8ab and the main body portion 8aa, so that the same effects as described above can be achieved while providing a larger space for the central region and avoiding interference with the connecting rod 7 a.

The flexible connection section 4 is specifically a metal chain formed by sleeving and fastening a plurality of metal rings, the upper end of the flexible connection section is completely and fixedly connected with the large end of a connecting bolt 3a contained in the second connection unit 3 in a welding mode, the lower end of the flexible connection section is provided with a hook protruding outwards, and an annular connecting rod 7a for fixing the hook is welded and arranged at the upper end part of the connecting rod 7a in the first connection unit 2, so that the hook can hook the annular connecting rod 7a, and the flexible connection section 4 is respectively connected and fixed with the first connection unit 2 and the second connection unit 3 at the two ends of the flexible connection section. A fastening screw thread section 3aa for fixedly connecting with a fastening screw thread hole on the movable connecting piece is further formed on a lower section of the connecting bolt 3a included in the second connecting unit 3.

This block connecting piece 1 can make connecting rod 7a along the axial displacement who adjusts screw hole 8b through rotating threaded connecting rod 7a in the use, makes its connecting bolt 3a distance for the other end change simultaneously, and then realizes the flexible change effect of the whole length of block connecting piece 1.

Example 2: an adjustable connecting component comprises the clamping connecting piece 1, a metal base 6 which is completely fixedly arranged on the ground through a screw, and a movable part 5 for bearing and installing other additional part devices. The metal base 6 integrated into one piece is to the bellied spliced pole that extends upwards, still fixed mounting has a ball head portion of sphere in the upper end of spliced pole, and is corresponding, movable part 5 is seted up the left component and the right component concatenation of hemisphere recess by the lower part symmetry respectively and is constituteed mutually. The left component and the right component are respectively close to and buckled on the head part from two sides, the movable part 5 is sleeved on the head part without falling off through the locking of the bolt, and a movable connection structure of the head part is formed, so that the movable part 5 can freely rotate around the spherical center of the head part relative to the base 6.

And (3) arranging a mounting hole with threads inside on the movable part 5 from bottom to top, and screwing and fixing a connecting bolt 3a in the second connecting unit 3 of the clamping connector 1 in the mounting hole to realize the connection and fixation of the clamping connector 1 relative to the movable part 5 positioned at the upper side.

The upper surface of the base 6 is provided with a concave socket 6a which is concave downwards, a cylindrical hollow space is formed inside the concave socket 6a, and the bottom of the hollow space is concave outwards along the horizontal direction to form a clamping groove 6aa which is in a ring shape. When the adjustable connecting assembly is fixedly connected with the base 6, acting force pointing to the center is applied to the outer side face of the clamping part 8ab, so that the clamping part 8ab is hinged with the main body part 8aa to serve as two side rod pieces of the clamping part 8ab to rotate inwards at the same time, the radial size of the clamping part 8ab is reduced due to shrinkage deformation, and the clamping part 8ab can be inserted into the concave socket 6a from outside to inside at the moment. After the clamping part 8ab enters the concave insertion opening, the two sides are not abutted any more, and at the moment, under the action of a spring installed in the clamping part 8ab, the clamping part 8ab expands outwards and enables the bulge part at the lower end of the clamping part 8ab to enter the clamping groove 6aa formed in the concave insertion opening 6 a. The first connecting unit 2 is fixed to the base 6 and is not detached only by the tensile force applied by the first connecting unit 2.

It is further preferable that the structure of the adjustable connection assembly is configured such that the shape of the concave insertion opening 6a is a truncated cone shape with a large top and a small bottom, and accordingly, the inner wall surface of the concave insertion opening 6a forms a guiding inclined surface structure 6 c. Under the shape structure, when the clamping part 8ab of the clamping connection structure 8 is installed in the concave socket 6a, only a vertical downward acting force needs to be applied to tend to move the clamping part 8ab downwards, and the clamping part 8ab naturally shrinks towards the center under the action of the inclined inner wall surface until the clamping groove 6aa is outwards bounced to complete fixed connection, so that the installation process is simpler and more convenient.

Further preferably, a self-locking portion 8aba protruding obliquely upward is formed on an outer edge of the engaging portion 8ab, and a self-locking groove 6aaa recessed upward for engaging the self-locking portion 8aba is formed in the engaging groove 6 aa. After the mounting, the self-locking portion 8aba is fitted into the self-locking groove 6aaa, and when the detachment is required, the self-locking portion 8aba is pushed downward to be disengaged from the self-locking groove 6aaa, and the engaging portion 8ab is pressed toward the center to release the connection of the respective members, thereby separating the members. Preferably, the bottom of the concave socket 6a is further filled with an elastic cushion 6b made of rubber material, which is used for applying an upward acting force to the bottom surface of the self-locking part 8aba, so that the self-locking part 8aba is stably embedded into the inner space of the self-locking groove 6aaa during fixed connection, and the connection stability is further improved.

Preferably, the clamping connecting pieces 1 are symmetrically arranged on two sides of the ball head structure on the base 6, the clamping connecting pieces 1 on two sides are respectively rotated and adjusted to enable the lengths of the clamping connecting pieces 1 on two sides to be different, and the movable part 5 is inclined to the shorter side. At this time, the clamping connecting pieces 1 on the two sides are continuously and respectively rotated and adjusted to enable the two clamping connecting pieces 1 to be in a tensioning state, so that the movable connecting piece is completely fixed in the plane provided with the clamping connecting pieces 1 in the angle state. The stable connection and fixation of the movable connecting piece at any angle position in the three-dimensional space can be realized by arranging a plurality of groups of clamping connecting pieces 1 which are symmetrical in pairs along the circumferential direction of the ball head structure.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A snap-fit connector, characterized in that it comprises a first connecting unit (2) for cooperating and fixing with a base (6), for connecting with a movable part (5) mounted on the base (6) ) a second connecting unit (3) that is matched and fixed, and a flexible connecting segment (4) disposed between the first connecting unit (2) and the second connecting unit (3); the first connecting unit (2) ) comprises an adjustable connecting structure (7) fixedly connected with the lower end of the flexible connecting segment (4) and a snap-fit connecting structure for fixedly connecting with the concave socket (6a) opened on the base (6) (8).

2 . The snap connection according to claim 1 , wherein the adjustable connection structure ( 7 ) comprises a cylindrical connecting rod ( 7 a ) and a fitting located under the connecting rod ( 7 a ). 3 . The outer side of the lower section of the connecting rod (7a) is provided with an external thread to form an adjustment thread segment (7aa), and the matching part (8a) is provided with a thread for matching with the adjustment thread segment (7aa). Adjusting threaded hole (8b), the connecting rod (7a) is mounted on the fitting (8a) through a threaded structure and can be rotated clockwise or counterclockwise by itself to achieve the axial direction of the adjusting threaded hole (8b) Move up or down.

3. The snap-fit connector according to claim 1, characterized in that: the second connecting unit (3) includes a connecting bolt (3a), and the big end of the connecting bolt (3a) is connected to the The upper ends of the flexible connecting sections (4) are fixedly connected, and the connecting bolts (3a) are formed with fastening thread sections (3aa) for fixedly connecting with the movable parts.

4. The snap-fit connector according to claim 2, characterized in that the fitting (8a) can be divided into two mutually independent parts: a main body part (8aa) and a snap-fit part (8ab). A hinge structure (8c) is formed between the main body part (8aa) and the engaging part (8ab), and the engaging part (8ab) can rotate relative to the main body part (8aa) around the rotation center of the hinge; Between the engaging portion (8ab) and the main body portion (8aa) or between the engaging portions (8ab) that are symmetrical to each other, there are provided for driving the engaging portion (8ab) to expand outward to make the engaging portion (8ab) expand. 8ab) The elastic component (8d) that is in contact with the inner wall of the concave socket (6a) opened on the base (6).

5. The snap-fit connector according to claim 4, characterized in that: the snap-fit portion (8ab) protrudes outward to form a snap-in slot ( 6aa) the convex edge.

6. An adjustable connection assembly, comprising a base (6) and a movable part (5), the movable part (5) is connected with the base (6) through a ball joint movable connection structure, and the movable part (5) can be opposed to each other. The base (6) rotates around the spherical center of the ball head movable connection structure, and is characterized in that: the snap-fit connector ( 1), the base (6) is provided with a concave socket (6a) for fitting and installing the first connection unit (2), and the inner space of the concave socket (6a) is recessed to the side to form a fitting Install the slot (6aa) of the engaging portion (8ab).

7. The adjustable connecting assembly according to claim 6, characterized in that: the inner wall of the female socket (6a) is formed with a guiding inclined surface structure (6c) whose radial dimension is gradually reduced from the outside to the inside.

8. The adjustable connecting assembly according to claim 6, characterized in that: the card slot (6aa) further comprises an inner space extending in a direction opposite to the insertion direction of the first connecting unit (2) and formed from A locking groove (6aaa), the card and portion extend in corresponding directions to form a self-locking portion (8aba) corresponding to the self-locking groove (6aaa).

9 . The adjustable connecting assembly according to claim 8 , wherein the bottom of the concave socket ( 6 a ) is provided with a bottom surface for abutting against the lower surface of the engaging portion ( 8 ab ) so as to be in contact with the card slot. 10 . (6aa) Tightly fitting elastic cushion (6b).

10. The adjustable connecting assembly according to claim 6, characterized in that it comprises several sets of snap-connecting pieces (1) symmetrically arranged on both sides of the ball head.