Screw mounting structure

Abstract

The utility model belongs to the technical field of screw rod structures, and discloses a screw rod mounting structure, which comprises a mounting piece, a connecting piece, a connecting piece, a connecting piece and a connecting piece, and is characterized in that the mounting piece is provided with a deformation fastening cavity for a screw rod to penetrate through; the locking block is arranged in the deformation fastening cavity; when the mounting piece receives a first acting force, the deformation fastening cavity shrinks and deforms, and drives the locking block to move towards the screw rod so as to abut against the screw rod; and when the mounting piece receives a second acting force, the deformation fastening cavity expands and deforms, and drives the locking block to move away from the screw rod so as to loosen the screw rod. According to the screw rod mounting structure, the locking block can be switched between the screw rod locking state and the screw rod loosening state by driving the mounting piece to contract or expand and deform, the screw rod mounting structure can be matched with screw rods of various diameter sizes, and universality is high.

Description

Technical Field

[0001] The utility model relates to the technical field of screw structures, in particular to a screw installation structure. Background Art

[0002] Screw structures are often used in the mechanical field. Currently, the common screw installation structure is a sleeve. The screw is inserted into the sleeve, and the two are connected through threaded cooperation. However, the diameter of the screw that can be installed in the same sleeve is fixed. That is to say, a sleeve can only install one diameter model of screw, and the applicable range is small.

[0003] Therefore, there is an urgent need for a screw installation structure to solve the above technical problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a screw installation structure, which can drive the installation part to contract or expand and deform, so that the locking block can switch between two states of locking the screw and loosening the screw, and can adapt to screws of various diameter sizes, with high versatility.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Provide a screw installation structure, including:

[0007] An installation part, which is provided with a deformation fastening cavity for the screw to pass through;

[0008] A locking block, which is arranged in the deformation fastening cavity;

[0009] When the installation part receives a first acting force, the deformation fastening cavity contracts and deforms, and drives the locking block to move towards the screw to press against the screw; when the installation part receives a second acting force, the deformation fastening cavity expands and deforms, and drives the locking block to move away from the screw to loosen the screw.

[0010] Preferably, the installation part includes an installation portion and at least two deformation portions. At least two deformation portions extend outward from the installation portion and are arranged oppositely. The deformation fastening cavity is formed between at least two deformation portions, a partition groove is formed between adjacent two deformation portions, and the locking block is closely attached to the deformation portion.

[0011] Preferably, the partition groove extends from the deformation portion to the installation portion.

[0012] Preferably, the deformation portion is provided with an installation cavity extending along the axial direction. The locking block is arranged in the installation cavity and can slide relative to the deformation portion in the installation cavity.

[0013] Preferably, an installation groove extending radially is provided through the deformation part, and the locking block is arranged in the installation groove and can slide relative to the deformation part in the installation groove.

[0014] Preferably, a pressing surface is provided on the outer peripheral surface of the deformation part, and the pressing surface is used to receive a force and control the inward contraction and deformation of the deformation tightening cavity.

[0015] Preferably, a locking surface is provided on the inner side surface of the locking block, and locking lines adapted to the screw are provided on the locking surface.

[0016] Preferably, a first positioning surface is provided on the outer wall of the deformation part. When the installation part is installed in the fixing cavity of the fixing structure, the first positioning surface fits with the second positioning surface of the fixing cavity to limit the rotation of the installation part around its own axis.

[0017] Preferably, the installation part further includes a sleeve part, the sleeve part extends from the installation part in a direction away from the deformation part, and a locking cavity communicating with the deformation tightening cavity is provided in the sleeve part for the screw to pass through.

[0018] Preferably, a third positioning surface is provided on the outer wall of the sleeve part. When the installation part is installed in the fixing cavity of the fixing structure, the third positioning surface fits with the fourth positioning surface of the fixing cavity to limit the rotation of the installation part around its own axis.

[0019] Advantages of the present utility model:

[0020] The screw installation structure provided by the present utility model is provided with a deformation tightening cavity for the screw to pass through in the installation part, and a locking block is arranged in the deformation tightening cavity. When the installation part is under the action of an external force, the deformation tightening cavity will deform, and the locking block is controlled to selectively clamp or release the screw. When the deformation tightening cavity contracts and deforms, the deformation tightening cavity drives the locking block to move inward, and the locking block presses against the screw to limit the axial movement of the screw; when the deformation tightening cavity expands and deforms, the deformation tightening cavity drives the locking block to move outward, and the locking block releases the screw, and at this time the screw can move axially relative to the installation part. In summary, the screw installation structure provided by the present utility model does not need to fix the screw through threaded connection. The user can drive the installation part to contract or expand, so that the locking block can be switched between two states of locking the screw and releasing the screw, and can be adapted to screws of various diameter sizes, with high versatility. Description of the drawings

[0021] Figure 1 is a schematic structural diagram of the screw installation structure provided by the present utility model;

[0022] Figure 2 is an exploded structural diagram of the screw installation structure provided by the present utility model;

[0023] Figure 3 It is a cross-sectional view of the screw rod installation structure provided by the utility model;

[0024] Figure 4 It is a structural schematic diagram of the mounting piece provided by the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the locking block provided by the utility model. Figure 1 ;

[0026] Figure 6 This is a schematic diagram of the structure of the locking block provided by the utility model. Figure 2 .

[0027] In the figure:

[0028] 10. Mounting member; 101. Deformation fastening cavity; 11. Mounting portion; 12. Deformation portion; 121. Mounting groove; 122. Pushing surface; 123. First positioning surface; 13. Separation groove; 14. Sleeve portion; 141. Locking cavity; 142. Third positioning surface;

[0029] 20. Locking block; 21. Locking surface; 211. Locking pattern; 22. Push surface.

[0030] 100. Screw. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] 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 additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0034] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operations. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0035] This embodiment provides a screw mounting structure for mounting and fixing a screw 100 to keep the screw 100 in a predetermined position and attitude. As Figures 1 - 6 shown, the screw mounting structure includes a mounting member 10 and a locking block 20. The mounting member 10 is provided with a deformable fastening cavity 101 for the screw 100 to pass through, and the locking block 20 is arranged in the deformable fastening cavity 101.

[0036] When the mounting member 10 receives a first acting force, the deformable fastening cavity 101 contracts and deforms, and drives the locking block 20 to move towards the screw 100 to tightly press the screw 100; when the mounting member 10 receives a second acting force, the deformable fastening cavity 101 expands and deforms, and drives the locking block 20 to move away from the screw 100 to loosen the screw 100.

[0037] Specifically, for the screw installation structure provided in this embodiment, a deformable fastening cavity 101 for the screw 100 to pass through is provided in the mounting member 10. A locking block 20 is provided in the deformable fastening cavity 101. When an external force acts on the mounting member 10, the deformable fastening cavity 101 will deform, and the locking block 20 is controlled to selectively clamp or release the screw 100. When the deformable fastening cavity 101 contracts and deforms, the deformable fastening cavity 101 drives the locking block 20 to move inward, and the locking block 20 presses against the screw 100 to limit the axial movement of the screw 100; when the deformable fastening cavity 101 expands and deforms, the deformable fastening cavity 101 drives the locking block 20 to move outward, and the locking block 20 releases the screw 100. At this time, the screw 100 can move axially relative to the mounting member 10. In summary, the screw installation structure provided in this embodiment does not need to fix the screw 100 through threaded connection. The user can drive the mounting member 10 to contract and deform or expand and deform, so that the locking block 20 can switch between two states of locking the screw 100 and releasing the screw 100, and can adapt to screws 100 of various diameter sizes, with high versatility.

[0038] Exemplarily, as Figures 1 - 4 shown, the mounting member 10 includes a mounting portion 11, at least two deformation portions 12, and a sleeve portion 14. At least two deformation portions 12 extend outward from the mounting portion 11 and are oppositely arranged. The sleeve portion 14 extends from the mounting portion 11 in a direction away from the deformation portions 12. A locking cavity 141 communicating with the deformable fastening cavity 101 is provided in the sleeve portion 14, and the locking cavity 141 is used for the screw 100 to pass through. In this embodiment, the deformation portions 12 are located at the upper end of the mounting portion 11, and the sleeve portion 14 is located at the lower end of the mounting portion 11.

[0039] Furthermore, a deformable fastening cavity 101 is formed between at least two deformation portions 12, a separation groove 13 is formed between adjacent two deformation portions 12, and the locking block 20 is in close contact with the deformation portion 12. Preferably, one locking block 20 is correspondingly provided for each deformation portion 12.

[0040] When a first acting force acts on the deformation portion 12, the deformation portions 12 move closer to each other, and further the deformable fastening cavity 101 contracts and deforms. At this time, the locking block 20 in close contact with the deformation portion 12 moves towards the screw 100 to press against the screw 100; when a second acting force acts on the deformation portion 12, the deformation portions 12 move away from each other, the deformable fastening cavity 101 expands and deforms, and drives the locking block 20 to move away from the screw 100 to release the screw 100.

[0041] In this embodiment, as Figures 1 - 4As shown, the mounting member 10 includes two deformation portions 12, the two deformation portions 12 are symmetrical and spaced apart, and a separation groove 13 is formed between the two deformation portions 12, and the separation groove 13 provides sufficient space for the deformation of the two deformation portions 12. Preferably, the separation groove 13 extends to the mounting portion 11 to further expand the deformation space between the two deformation portions 12, and the deformation fastening cavity 101 can also be deformed more.

[0042] For example, Figure 4 As shown, the outer peripheral surface of the deformation portion 12 is provided with a pushing surface 122, and the pushing surface 122 is used to receive the force and control the deformation and fastening cavity 101 to shrink and deform inward. Specifically, the pushing surface 122 is set obliquely downward, and the first force is applied to the pushing surface 122. The direction of the first force can be radially inward, vertically upward, or set to an oblique upward direction corresponding to the inclination direction of the pushing surface 122.

[0043] Exemplarily, the deformation part 12 is made of elastic material such as rubber, and in a natural state, the deformation part 12 has a tendency to expand radially outward, and the second force is the elastic deformation force of the deformation part 12. In some embodiments, the deformation part 12 can also be made of rigid materials such as metal, and the deformation part 12 is rotatably connected to the mounting part 11 through a structure such as a hinge, and the second force can be the gravity of the deformation part 12 itself, or the force applied by a hand to bend the deformation part 12 to rotate outward.

[0044] Exemplarily, the mounting portion 11 and the sleeve portion 14 are both made of a rigid material such as metal, and when the mounting portion 11 is controlled to squeeze the deformation portion 12 , the deformation portion 12 expands and deforms radially outward.

[0045] Further, such as Figure 3 and Figure 4 As shown, the deformation part 12 is provided with a mounting groove 121 extending in the radial direction, and the locking block 20 is provided in the mounting groove 121 and can slide in the mounting groove 121 relative to the deformation part 12. Specifically, the locking block 20 is slidably provided in the mounting groove 121, and when the first force acts on the deformation part 12, the two deformation parts 12 are radially close to each other, driving the two locking blocks 20 to slide in the corresponding mounting groove 121 and approach each other; when the second force acts on the deformation part 12, the two deformation parts 12 are radially away from each other, and the two locking blocks 20 are also away from each other.

[0046] Preferably, Figure 3 and Figure 4As shown, the installation groove 121 is set as a through-groove structure, and openings are provided at both ends in the radial direction. Therefore, the first acting force can also be directly applied to the outer side of the locking block 20, thereby directly pushing the locking block 20 against the screw rod 100. In addition, the locking block 20 can be inserted into the installation groove 121 through any opening of the installation groove 121.

[0047] Exemplarily, as Figure 5 and Figure 6 shown, a pushed surface 22 is provided on the outer side surface of the locking block 20, and the inclination direction of the pushed surface 22 is the same as the inclination direction of the pressing surface 122. The first acting force can be applied to the pushed surface 22 together.

[0048] In some embodiments, an installation cavity extending along the axial direction can also be provided on the deformation part 12. The locking block 20 is arranged in the installation cavity and can slide relative to the deformation part 12 in the installation cavity.

[0049] Exemplarily, as Figure 4 shown, a first positioning surface 123 is provided on the outer wall of the deformation part 12. When the installation part 10 is installed in the fixed cavity of the fixed structure, the first positioning surface 123 fits with the second positioning surface of the fixed cavity to limit the installation part 10 from rotating around its own axis and keep the posture of the installation part 10 stable.

[0050] Exemplarily, as Figure 4 shown, a third positioning surface 142 is provided on the outer wall of the sleeve part 14. When the installation part 10 is installed in the fixed cavity of the fixed structure, the third positioning surface 142 fits with the fourth positioning surface of the fixed cavity to limit the installation part 10 from rotating around its own axis and keep the posture of the installation part 10 stable.

[0051] Exemplarily, as Figure 5 and Figure 6 shown, a locking surface 21 is provided on the inner side surface of the locking block 20. The locking surface 21 is set as a concave arc surface structure and can be matched with screw rods 100 of various sizes. Locking lines 211 adapted to the screw rod 100 are provided on the locking surface 21. The locking lines 211 can be specifically set as an internal thread structure or a plurality of channel structures distributed along the axial direction.

[0052] Exemplarily, the stiffness of the locking block 20 is greater than the stiffness of the deformation part 12. The locking block 20 can be made of a metal material or materials such as rubber and plastic with a stiffness greater than that of the deformation part 12.

[0053] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A screw rod installation structure, characterized in that: include: A mounting member (10), wherein the mounting member (10) is provided with a deformable fastening cavity (101) for the screw rod (100) to pass through; A locking block (20), the locking block (20) being arranged in the deformation fastening cavity (101); When the mounting member (10) is subjected to a first force, the deformable fastening cavity (101) contracts and deforms, and drives the locking block (20) to move toward the screw rod (100) to tighten the screw rod (100); when the mounting member (10) is subjected to a second force, the deformable fastening cavity (101) expands and deforms, and drives the locking block (20) to move away from the screw rod (100) to loosen the screw rod (100).

2. The screw rod installation structure according to claim 1, characterized in that: The mounting member (10) comprises a mounting portion (11) and at least two deformation portions (12), wherein the at least two deformation portions (12) extend outward from the mounting portion (11) and are arranged opposite to each other, wherein the deformation fastening cavity (101) is formed between the at least two deformation portions (12), and a separation groove (13) is formed between two adjacent deformation portions (12), and the locking block (20) is closely attached to the deformation portion (12).

3. The screw rod installation structure according to claim 2, characterized in that: The separation groove (13) extends from the deformation portion (12) to the mounting portion (11).

4. The screw rod installation structure according to claim 2, characterized in that: The deformation portion (12) is provided with a mounting cavity extending in the axial direction, and the locking block (20) is arranged in the mounting cavity and can slide in the mounting cavity relative to the deformation portion (12).

5. The screw rod installation structure according to claim 2, characterized in that: The deformation portion (12) is provided with a mounting groove (121) extending in the radial direction, and the locking block (20) is arranged in the mounting groove (121) and can slide in the mounting groove (121) relative to the deformation portion (12).

6. The screw rod installation structure according to claim 2, characterized in that: The outer peripheral surface of the deformation portion (12) is provided with a pushing surface (122), and the pushing surface (122) is used to receive the acting force and control the deformation and fastening cavity (101) to shrink and deform inwards.

7. The screw rod installation structure according to claim 1, characterized in that: The inner side surface of the locking block (20) is provided with a locking surface (21), and the locking surface (21) is provided with a locking pattern (211) that matches the screw rod (100).

8. The screw rod installation structure according to claim 2, characterized in that: The outer wall of the deformation portion (12) is provided with a first positioning surface (123); when the mounting member (10) is mounted in a fixed cavity of a fixed structure, the first positioning surface (123) fits with a second positioning surface of the fixed cavity to limit the rotation of the mounting member (10) around its own axis.

9. The screw rod installation structure according to claim 2, characterized in that: The mounting member (10) further comprises a sleeve portion (14), wherein the sleeve portion (14) extends from the mounting portion (11) in a direction away from the deformation portion (12), and wherein a locking cavity (141) communicating with the deformation fastening cavity (101) is provided in the sleeve portion (14), and wherein the locking cavity (141) is used for the screw rod (100) to pass through.

10. The screw rod installation structure according to claim 9, characterized in that: The outer wall of the sleeve portion (14) is provided with a third positioning surface (142); when the mounting member (10) is mounted in a fixed cavity of a fixed structure, the third positioning surface (142) fits with a fourth positioning surface of the fixed cavity to limit the mounting member (10) from rotating around its own axis.

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