Paper-plastic thread rotary buckle

Abstract

The utility model relates to a paper-plastic thread rotary buckle which comprises a fixed screwing part, a movable screwing part and a limiting lantern ring, and a first thread is arranged on the fixed screwing part in a surrounding mode. The position, below the first thread, of the fixed screwing part is sleeved with the limiting lantern ring, an elastic limiting strip is arranged on the limiting lantern ring in the screwing direction of the first thread in an extending mode, and the elastic limiting strip is bent upwards; the annular inner wall of the movable screwing part is provided with a second thread matched with the first thread, a limiting block is further arranged below the movable screwing part, and the distance from the limiting block to the rotating axis of the movable screwing part is equal to the distance from the elastic limiting strip to the rotating axis of the fixed screwing part. Rotation of the movable screwing part is limited through the elastic limiting strip, even if the screwing degree of the fixed screwing part and the movable screwing part is small, the fixed screwing part and the movable screwing part are difficult to separate under the action of external force, and the connection performance of the paper-plastic spinning buckle is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of paper-plastic, in particular to a paper-plastic screw thread buckle. Background Art

[0002] The screw buckle structure is a commonly used connector, which plays an important role and significance in daily life, mechanical engineering and construction fields, and can provide stable connection, convenient adjustment and disassembly.

[0003] The material of the commonly used screw buckle structure in life is plastic. Due to the characteristic that plastic is difficult to decompose, plastic waste causes great pollution to the earth environment. Paper-plastic products have the characteristics of environmental protection, sustainability, lightness and firmness, and are good substitutes for plastic.

[0004] However, the screw buckle structure has certain requirements for the strength of the material. The strength of paper-plastic products is relatively low. When the paper-plastic screw buckle is screwed and tightened, the structure of the paper-plastic screw buckle is easily damaged. And the paper-plastic screw buckle that is not tightened is easily opened by external force and cannot play the role of connection and sealing.

[0005] It should be noted that the information disclosed in the above background art section is only used to strengthen the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0006] Aiming at the above-mentioned disadvantages of the prior art, the purpose of the utility model is to provide a paper-plastic screw thread buckle to enhance the connection performance of the paper-plastic screw buckle.

[0007] The technical solution of the utility model is as follows:

[0008] A paper-plastic screw thread buckle includes a fixed screwing part, a movable screwing part and a limiting collar. The first thread is arranged around the fixed screwing part. The limiting collar is sleeved on the fixed screwing part below the first thread. The elastic limiting strip is arranged on the limiting collar and extends along the screwing direction of the first thread, and the elastic limiting strip bends upward. The second thread matching the first thread is arranged on the inner wall of the annular shape of the movable screwing part. The limiting block is further arranged below the movable screwing part. The distance from the limiting block to the rotation axis of the movable screwing part is equal to the distance from the elastic limiting strip to the rotation axis of the fixed screwing part.

[0009] The beneficial technical effects of the utility model are as follows:

[0010] (1) In the paper-plastic screw thread buckle of the present utility model, a limiting collar is additionally provided on the fixed screwing part, and an elastic limiting strip bent upward is provided on the limiting collar. A limiting block is provided on the movable screwing part to cooperate with the above-mentioned elastic limiting strip. When the fixed screwing part and the movable screwing part are tightened, the moving direction of the limiting block is along the extension direction of the elastic limiting strip, and the limiting block will squeeze the elastic limiting strip downward, and the elastic limiting strip will be pushed open. During this process, the elastic limiting strip will not produce a limiting effect, and the fixed screwing part and the movable screwing part can be tightened smoothly. When the fixed screwing part and the movable screwing part are loosened, the limiting block rotates against the extension direction of the elastic limiting strip, and the end of the elastic limiting strip will abut against the elastic limiting block. At this time, the limiting block squeezes the elastic limiting strip along the length direction of the elastic limiting strip, and the elastic limiting strip is difficult to be squeezed and bent, the rotation of the limiting block is restricted, and the loosening action is difficult to execute. In this way, even if the screwing degree of the fixed screwing part and the movable screwing part is small, the fixed screwing part and the movable screwing part are difficult to separate under the action of an external force, enhancing the connection performance of the paper-plastic screw buckle.

[0011] (2) Further, the first thread is provided on the sleeve, and is connected to the fixed screwing part through the sleeve and arranged on the fixed screwing part. If the first thread is directly provided on the fixed screwing part, in order to ensure the structural strength, the thickness of the fixed screwing part cannot be too thin. Limited by the paper-plastic processing technology, it is difficult to make threads on thick paper-plastic. First, the first thread is provided on the sleeve to reduce the thickness of the paper-plastic, and then the sleeve is sleeved on the fixed screwing part. While facilitating processing, the structural strength is ensured.

[0012] (3) Further, a screwing cover is detachably provided on the movable screwing part. The screwing cover is inserted into the movable screwing part. When the screwing cover is lifted, the screwing cover and the movable screwing part are separated, preventing accidental tightening or loosening of the movable screwing part. And when the movable screwing part is damaged, the movable screwing part can be conveniently replaced. Description of the Drawings

[0013] Figure 1 Shows an exploded structural schematic diagram of the paper-plastic screw thread buckle of the present utility model.

[0014] Figure 2 Shows a bottom view of the movable screwing part in the paper-plastic screw thread buckle of the present utility model.

[0015] Figure 3 Shows a structural schematic diagram when the first thread and the second thread in the paper-plastic screw thread buckle of the present utility model are screwed together.

[0016] Figure 4 Shows a bottom view of the screwing cover in the paper-plastic screw thread buckle of the present utility model.

[0017] Reference Signs in the Drawings:

[0018] 1. Fixed screwing part; 11. Sleeve; 12. First thread; 13. Card slot; 2. Limit collar; 21. Elastic limit strip; 22. Pressing part; 3. Movable screwing part; 31. Second thread; 32. First protrusion; 33. Annular limit groove; 34. Limit block; 4. Screwing cap; 41. Concave-convex stripes; 42. Second protrusion. Detailed implementation mode

[0019] In order to make the objectives, features and advantages of the present utility model more obvious and understandable, please refer to the attached drawings. It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have any technical essence. Any modification of the structure, change of the ratio relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the objectives that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0020] In the description of the present utility model, the defined terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present utility model.

[0021] Figure 1 The exploded structural schematic diagram of the paper-plastic screw buckle of the present utility model is shown. Figure 2 The bottom view of the movable screwing part in the paper-plastic screw buckle of the present utility model is shown. Figure 3 The structural schematic diagram when the first thread and the second thread in the paper-plastic screw buckle of the present utility model are screwed together is shown. Please refer to Figure 1 、 Figure 2 and Figure 3, A paper-plastic screw thread connection, comprising a fixed screw part 1, a movable screw part 3 and a limiting collar 2. A first thread 12 is circumferentially arranged on the fixed screw part 1. The limiting collar 2 is sleeved on the fixed screw part 1 below the first thread 12. An elastic limiting strip 21 is arranged on the limiting collar 2 along the screwing direction of the first thread 12, and the elastic limiting strip 21 is bent upward. A second thread 31 matching the first thread 12 is arranged on the inner wall of the annular movable screw part 3. The pattern of the first thread 12 on the fixed screw part 1 protrudes outward, and the inner side of the second thread 31 on the inner wall of the movable screw part 3 is recessed. The protruding part of the first thread 12 is stuck into the recess of the second thread 31 for screwing. A limiting block 34 is further arranged below the movable screw part 3. The distance from the limiting block 34 to the rotation axis of the movable screw part 3 is equal to the distance from the elastic limiting strip 21 to the rotation axis of the fixed screw part 1. When tightening the fixed screw part 1 and the movable screw part 3, the moving direction of the limiting block 34 is along the extension direction of the elastic limiting strip 21, and the limiting block 34 will squeeze the elastic limiting strip 21 downward. The elastic limiting strip 21 is pushed open, and in this process, the elastic limiting strip 21 will not produce a limiting effect, and the fixed screw part 1 and the movable screw part 3 are tightened smoothly. When unscrewing the fixed screw part 1 and the movable screw part 3, the limiting block 34 rotates against the extension direction of the elastic limiting strip 21, and the end of the elastic limiting strip 21 will resist the elastic limiting block 34. At this time, the limiting block 34 squeezes the elastic limiting strip 21 along the length direction of the elastic limiting strip 21. It is difficult to squeeze and bend the elastic limiting strip 21, the rotation of the limiting block 34 is restricted, and the unscrewing action is difficult to execute. In this way, even if the screwing degree of the fixed screw part 1 and the movable screw part 3 is small, it is difficult for the fixed screw part 1 and the movable screw part 3 to be separated under external force, enhancing the connection performance of the paper-plastic screw connection.

[0022] The specific structures of the fixed screw part 1 and the limiting collar 2 are described as follows:

[0023] Please refer to Figure 1 , A sleeve 11 is sleeved on the fixed screw part 1, and the first thread 12 is arranged on the sleeve 11. It is connected to the fixed screw part 1 through the sleeve 11. If the first thread 12 is directly arranged on the fixed screw part 1, in order to ensure the structural strength, the thickness of the fixed screw part 1 cannot be too thin. Limited by the paper-plastic processing technology, it is difficult to make threads on thick paper-plastic. First, the first thread 12 is arranged on the sleeve 11 to reduce the thickness of the paper-plastic, and then the sleeve 11 is sleeved on the fixed screw part 1, which is convenient for processing and ensures the structural strength at the same time.

[0024] Please refer to Figure 1, an annular card slot 13 is provided on the fixed screwing part 1 below the first thread 12, and the limiting collar 2 is arranged in the card slot 13. The card slot 13 is composed of the lower end face of the sleeve 11, the outer surface of the fixed screwing part 1, and the part where the fixed screwing part 1 protrudes outward. On the side of the limiting collar 2 close to the elastic limiting strip 21, a pressing part 22 extends horizontally outward. When an operator presses the pressing part 22, the elastic limiting strip 21 can be driven to move, facilitating the operator to adjust the position of the elastic limiting strip 21.

[0025] The specific structures of the screwing cap 4 and the movable screwing part 3 are described as follows:

[0026] Figure 4 The bottom view of the screwing cap in the paper-plastic screw buckle of the present invention is shown. Please refer to Figure 1 and Figure 4 , and further includes a screwing cap 4, which is detachably arranged on the movable screwing part 3. At least one first protrusion 32 is arranged on the upper surface of the movable screwing part 3, and at least one second protrusion 42 is arranged on the inner upper surface of the screwing cap 4. The rotation axes of the first protrusion 32 and the second protrusion 42 are on the same straight line. The screwing cap 4 and the movable screwing part 3 are inserted and connected through the first protrusion 32 and the second protrusion 42. When the screwing cap 4 is lifted, the screwing cap 4 and the movable screwing part 3 are separated, preventing accidental tightening or loosening of the movable screwing part 3. And when the movable screwing part 3 is damaged, the movable screwing part 3 can be conveniently replaced.

[0027] Please refer to Figure 1 and Figure 4 , the dimension of the first protrusion 32 on the side close to the second protrusion 42 gradually decreases, and the dimension of the second protrusion 42 on the side close to the first protrusion 32 gradually decreases. This facilitates the insertion and connection of the first protrusion 32 and the second protrusion 42. A plurality of first protrusions 32 are arranged in a ring, and a plurality of second protrusions 42 are arranged in a ring. The plurality of second protrusions 42 are inserted into the gaps between adjacent first protrusions 32. The plurality of first protrusions 32 and second protrusions 42 can disperse the torque during rotation and increase the structural strength. Concave-convex stripes 41 are arranged on the outer side of the screwing cap 4 to increase the friction of the screwing cap 4, facilitating tightening or loosening. An annular limiting groove 33 extends outward from the lower part of the movable screwing part 3, and a limiting block 34 is arranged in the annular limiting groove 33. This avoids the exposure of the limiting block 34 and the elastic limiting strip 21, reducing the probability of foreign objects getting stuck and damage.

[0028] The specific working process of the present invention is as follows:

[0029] When tightening the fixed screwing part 1 and the movable screwing part 3, the moving direction of the limiting block 34 is along the extension direction of the elastic limiting strip 21. When the limiting block 34 rotates, it will press the elastic limiting strip 21 downward. At this time, the elastic limiting strip 21 generates an elastic deformation downward. During this process, the elastic limiting strip 21 will not produce a limiting effect, and the fixed screwing part 1 and the movable screwing part 3 are successfully tightened.

[0030] When loosening the fixed screwing part 1 and the movable screwing part 3, the limit block 34 rotates against the extension direction of the elastic limit strip 21, and the end of the elastic limit strip 21 will abut against the elastic limit block 34. At this time, the limit block 34 squeezes the elastic limit strip 21 along the length direction of the elastic limit strip 21, and it is difficult to squeeze and bend the elastic limit strip 21, so the rotation of the limit block 34 is restricted and the loosening action is difficult to execute. It is not until the operator presses down on the pressing part 22 that the pressing part 22 deforms and bends downward to drive the elastic limit strip 21 to move downward. At this time, the elastic limit strip 21 no longer abuts against the limit block 34, and the fixed screwing part 1 and the movable screwing part 3 can be loosened smoothly.

[0031] Thus, it can be seen that for the above paper-plastic screw buckle, even if the screwing degree of the fixed screwing part 1 and the movable screwing part 3 is small, it is difficult for the fixed screwing part 1 and the movable screwing part 3 to be separated under the action of external force, enhancing the connection performance of the paper-plastic screw buckle.

[0032] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0033] The above-described embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A paper-plastic screw thread, characterized in that: It includes a fixed screwing part, a movable screwing part and a limiting collar. A first thread is circumferentially arranged on the fixed screwing part. The limiting collar is sleeved on the fixed screwing part below the first thread. An elastic limiting strip is arranged on the limiting collar and extends along the screwing direction of the first thread, and the elastic limiting strip bends upward. A second thread matching the first thread is arranged on the inner circumferential wall of the movable screwing part. A limiting block is further arranged below the movable screwing part. The distance from the limiting block to the rotation axis of the movable screwing part is equal to the distance from the elastic limiting strip to the rotation axis of the fixed screwing part.

2. The paper-plastic screw thread snap as claimed in claim 1, wherein: A sleeve is sleeved on the fixed screwing part, and the first thread is arranged on the sleeve.

3. The paper-plastic screw thread snap as claimed in claim 1, wherein: It further includes a screwing cover, and the screwing cover is detachably arranged on the movable screwing part.

4. The paper-plastic screw thread snap as claimed in claim 3, wherein: At least one first protrusion is arranged on the upper surface of the movable screwing part, and at least one second protrusion is arranged on the inner upper surface of the screwing cover. The rotation axes of the first protrusion and the second protrusion are on the same straight line.

5. The paper-plastic screw thread snap as claimed in claim 4, wherein: The size of the first protrusion gradually decreases on the side close to the second protrusion, and the size of the second protrusion gradually decreases on the side close to the first protrusion.

6. The paper-plastic screw thread snap as claimed in claim 4, wherein: A plurality of the first protrusions are arranged in a ring, and a plurality of the second protrusions are arranged in a ring. The plurality of second protrusions are inserted into the gaps between adjacent first protrusions.

7. The paper-plastic screw thread snap as claimed in claim 3, wherein: The outer side of the screwing cover is provided with concave-convex stripes.

8. The paper-plastic screw thread snap as claimed in claim 1, wherein: A circumferential limiting groove is formed by extending outward below the movable screwing part, and the limiting block is arranged in the circumferential limiting groove.

9. The paper-plastic screw thread snap as claimed in claim 1, wherein: A circumferential card slot is arranged on the fixed screwing part below the first thread, and the limiting collar is arranged in the card slot.

10. The paper-plastic screw thread snap as claimed in claim 1, wherein: On the side of the limiting collar close to the elastic limiting strip, a pressing part (22) is formed by extending laterally outward.

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