A self-locking water stopcock

Abstract

The present application discloses a self-locking water stopper to solve the problems of complex structure and difficult installation of existing water stoppers. The present application includes a first water stop component and a second water stop component, the first water stop component includes a first body and a plurality of first claws, the second water stop component includes a second body and a plurality of second claws, a rib structure is arranged at the center of the upper surface of the first body, when the second claw is inserted downward into the undercut groove, the upper inclined surface of the triangular inclined surface structure will squeeze the second claw, forcing the second claw to open and embed into the undercut groove; the plurality of first claws and the plurality of second claws correspond to each other one by one, and are interlaced and nested together to form an interlocking state; the present application has a simple structure, and is interlocked and fastened by the first claw and the second claw, so that the installation is more convenient and not easy to loosen; at the same time, the efficiency of the operators is improved, the performance is stable, the cost is low, and the production efficiency is high.

Description

Technical Field

[0001] The present application relates to the technical field of water stoppers, and in particular to a self-locking water stopper. Background Art

[0002] A water stopper is a device used to control the flow of water in a pipe. It is an accessory or tool that prevents the passage of fluid. It is mainly used in waterways and airways, and can also be used in cooling waterways in the plastic mold industry.

[0003] When using a water stopper, it needs to be fixed at a designated position in the waterway to block the water flow in this direction and force the water flow to go somewhere else. The existing water stopper squeezes the sealing ring through the thread, and the sealing ring expands and generates friction with the side wall of the pipe to fix it. The problems are as follows:

[0004] 1. The production is complicated, requiring screws, nuts, cones, sealing rings, etc., requiring many accessories, and the structure is complex and the cost is high;

[0005] 2. The water channel is relatively smooth. When tightening the screws, the force of the screws can easily cause the water stop to slip in place. The force of the screws pressing the cone surface is limited, resulting in a lack of power and difficulty in installation. When the water pressure is greater than the friction force of the cone surface, the water stop will be washed away and lose its proper function. Utility Model Content

[0006] To this end, the present application provides a self-locking water stopper to solve the problems of complex structure and difficult installation of existing water stoppers.

[0007] In order to achieve the above objectives, this application provides the following technical solutions:

[0008] A self-locking water stopper, comprising: a first water stop component and a second water stop component, wherein the first water stop component and the second water stop component are made of plastic material;

[0009] The first water-stopping component comprises a first body, the upper surface of which is provided with a plurality of first claws distributed along the outer edge thereof and at intervals in the circumferential direction, and undercut grooves are formed between adjacent first claws;

[0010] The second water stop component comprises a second body, the lower surface of which is provided with a plurality of second claws close to the outer edge thereof and distributed at intervals in the circumferential direction, the plurality of second claws corresponding to the plurality of first claws one by one and interlaced and nested with each other;

[0011] A rib structure is provided at the center position of the upper surface of the first body, the rib structure includes a central column and a plurality of triangular inclined surface structures provided along the outer wall of the central column, the plurality of triangular inclined surface structures correspond to the plurality of second claws one by one, and the outer edge of the bottom end of the triangular inclined surface structure extends into the undercut groove, so as to squeeze the second claws;

[0012] When assembling the first water-stop component and the second water-stop component, the multiple second claws are inserted downward into the undercut groove, and the multiple triangular inclined surface structures squeeze the inner wall of the second claw so that the second claw is pushed outward and squeezed into the undercut groove. When the side of the first claw touches the side of the second claw, pressure continues to be applied, and the second claw squeezes the first claw outward, forcing the outer side of the first claw to be squeezed against the inner wall of the pipe, so that the first water-stop component and the second water-stop component form an interlocking state, and the static friction force generated by the first claw and the side wall of the pipe fixes the water stop plug at the specified position.

[0013] Optionally, the first claw is in a "sector ring shape" in the radial direction and in an inverted trapezoidal structure in the axial direction, and its two side surfaces are inclined inward from top to bottom to form a first inclined surface;

[0014] The two side surfaces of the second claw are inclined outward from top to bottom respectively to form a second inclined surface matched with the first inclined surface.

[0015] Optionally, a plurality of first claws are evenly distributed on the upper surface of the first body;

[0016] A plurality of second claws are evenly distributed on the lower surface of the second body.

[0017] Optionally, the number of the plurality of first claws and the plurality of second claws is greater than 3.

[0018] Optionally, outer walls of the first clamping jaw and the second clamping jaw are provided with a texture structure.

[0019] Optionally, the texture structure is a horizontal stripe, a vertical stripe or a coarse texture structure.

[0020] Optionally, the plastic material is polyamide or polyphenylene sulfide.

[0021] Optionally, a first mounting groove is formed on the lower surface of the first body, and a second mounting groove is formed on the upper surface of the second body.

[0022] Compared with the prior art, this application has at least the following beneficial effects:

[0023] 1. Based on further analysis and research on the existing technical problems, the present application provides a self-locking water stopper, a first water stop component and a second water stop component, the first water stop component includes a first body and a plurality of first claws, the second water stop component includes a second body and a plurality of second claws, a rib structure is arranged at the center of the upper surface of the first body, when the second claw is inserted downward into the undercut groove, the inclined surface of the upper part of the triangular inclined surface structure will squeeze the second claw, forcing the second claw to open and embed into the undercut groove; the plurality of first claws and the plurality of second claws correspond to each other one by one, and are interlaced and nested together to form an interlocking state; the present application has a simple structure, and is interlocked and fastened by the first claw and the second claw, so that the installation is more convenient and it is not easy to loosen; at the same time, the efficiency of the operators is improved, the performance is stable, the cost is low, and the production efficiency is high;

[0024] 2. The outer walls of the first clamping claw and the second clamping claw of the present application are provided with a texture structure, which further improves the fixing effect of the water stopper;

[0025] 3. The first water-stop component and the second water-stop component of the present application are made of high-performance special plastic materials, such as nylon PA and polyphenylene sulfide PPS materials, which have the advantages of corrosion resistance, not easy to rust, good toughness, high strength, high temperature resistance, and stable structure, which greatly increases its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more intuitively illustrate the prior art and the present application, exemplary drawings are given below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing the present application; for example, those skilled in the art are capable of easily making conventional adjustments or further optimizations to the addition / reduction / attribution division, specific shapes, positional relationships, connection methods, dimensional ratios, etc. of certain units (components) based on the technical concepts and exemplary drawings disclosed in the present application.

[0027] Figure 1 A schematic diagram of the structure of the interlocking state of a self-locking water stopper provided by an embodiment of the present application;

[0028] Figure 2 for Figure 1 The cross-sectional view shown;

[0029] Figure 3 for Figure 1 A schematic diagram of the structure of the first water stop component;

[0030] Figure 4 for Figure 1 A schematic diagram of the structure of the second water stop component;

[0031] Figure 5 for Figure 3 The top view shown;

[0032] Figure 6 for Figure 3 Side view shown;

[0033] Figure 7 for Figure 3 A schematic diagram of the structure at the first installation slot;

[0034] Figure 8 for Figure 4 A schematic diagram of the structure at the second installation slot;

[0035] Fig. 9 A schematic diagram of a self-locking water stopper in use provided by an embodiment of the present application;

[0036] Fig.10 for Fig. 9 A partial schematic diagram of the water stop tap.

[0037] Description of reference numerals:

[0038] 1. first water stop component; 11. first body; 111. first mounting groove; 12. first clamping claw; 13. rib structure; 131. center column; 132. triangular slope structure; 14. undercut groove;

[0039] 2. second water stop member; 21. second body; 211. second mounting groove; 22. second claw;

[0040] 3. Plastic mold; 31. First water channel; 32. Second water channel;

[0041] 4. First mounting rod; 5. Second mounting rod; 51. Protrusion. DETAILED DESCRIPTION

[0042] The present application is further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0043] In the description of this application: unless otherwise specified, the meaning of "plurality" is two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects referred to, and do not have special meanings in terms of technical connotations (for example, they should not be understood as emphasizing the importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0044] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this application are usually used to indicate the general relative position relationship for the purpose of intuitive understanding by referring to the drawings, and are not absolute limitations on the position relationship in the actual product.

[0045] One embodiment of the present application is a self-locking water stopper, such as Figure 1-Figure 10As shown, it comprises: a first water-stopping component 1 and a second water-stopping component 2, wherein the first water-stopping component 1 and the second water-stopping component 2 are made of plastic material;

[0046] The first water stop component 1 comprises a first body 11, and a plurality of first claws 12 are arranged on the upper surface of the first body 11 along the outer edge thereof and distributed at intervals in the circumferential direction, and undercut grooves 14 are formed between adjacent first claws 12;

[0047] The second water stop component 2 includes a second body 21, and a plurality of second claws 22 are arranged on the lower surface of the second body 21 near the outer edge thereof and distributed at intervals in the circumferential direction. The plurality of second claws 22 correspond to the plurality of first claws 12 one by one and are interlaced and nested with each other.

[0048] A rib structure 13 (inclined rib) is provided at the center position of the upper surface of the first body 11. The rib structure 13 includes a center column 131 and a plurality of triangular inclined surface structures 132 provided along the outer wall of the center column 131. The plurality of triangular inclined surface structures 132 are provided integrally with the center column 131. The plurality of triangular inclined surface structures 132 correspond to the plurality of second claws 22 one by one. The outer edge of the bottom end of the triangular inclined surface structure 132 extends into the undercut groove 14. In this way, since the outer edge of the bottom end of the triangular inclined surface structure 132 exceeds the inner wall of the second claw 22, when the second claw 22 is inserted downward, the upper inclined surface of the triangular inclined surface structure 132 will squeeze the second claw 22.

[0049] When assembling the first water stop component 1 and the second water stop component 2, multiple second claws 22 are inserted downward into the first water stop component 1, and the triangular inclined surface structure 132 squeezes the inner wall of the second claw 22 so that the second claw 22 is pushed outward and squeezed into the undercut groove 14. When the side of the first claw 12 touches the side of the second claw 22, pressure continues to be applied, and the second claw 22 squeezes the first claw 12 outward, forcing the outer side of the first claw 12 to be squeezed against the inner wall of the pipeline (the cooling water channel described below), so that the first water stop component 1 and the second water stop component 2 are interlocked, and the first claw 12 and the side wall of the pipeline generate a static friction force, which can fix the water stop plug at the specified position.

[0050] Preferably, the first claw 12 is in a "sector ring shape" in the radial direction and in an "inverted trapezoidal" structure in the axial direction. The first claw 12 is in an inverted trapezoidal structure, which is larger at the top and smaller at the bottom, and the space between the two first claws 12 forms a regular trapezoidal vacancy; the two side surfaces of the first claw 12 are respectively inclined inward from the top (the end away from the first body 11) to the bottom (the end close to the first body 11) to form a first inclined surface; Figure 3 As shown,

[0051] The outer edges of the first claw 12 are formed with a first slope in the axial direction on both sides, and the first slope prevents the second claw 22 from moving up and down in the axial direction after being inserted into the undercut groove 14. At the same time, the two side surfaces of the first claw 12 are formed with a second slope in the radial direction, and the second slope makes the inner ring opening of the undercut groove 14 larger than the outer ring opening, so that the second claw 22 is easily assembled, and when the triangular inclined surface structure 132 opens the second claw 22 outward, it is clamped to prevent the second claw 22 from moving inward.

[0052] The two side surfaces of the second claw 22 are inclined outward from the top (the end close to the second body 21 ) to the bottom (the end away from the second body 21 ) to form a second inclined surface matching the first inclined surface.

[0053] The rib structure 13 (inclined rib) is arranged so that when the first water stop component 1 and the second water stop component 2 are squeezed, the corresponding inclined surface will squeeze the second claw 22 into the undercut groove 14 and form an interlocking.

[0054] After the first water stop component 1 and the second water stop component 2 are locked, the water stop cannot be opened in the up and down directions due to the setting of the first slope, and the setting of the rib structure 13 also makes the water stop cannot be opened in the inside and outside directions. When the second claw 22 tends to move inward, it will be supported by the internal rib structure 13; this interlocking function is also not available in other water stoppers. The use of the present water stop achieves the effect of getting tighter with pressure, while once the thread of the existing water stop is loose, the whole thing will loosen.

[0055] Preferably, the plurality of first claws 12 are evenly distributed on the upper surface of the first body 11;

[0056] A plurality of second claws 22 are evenly distributed on the lower surface of the second body 21 .

[0057] Further preferably, the number of the plurality of first clamping claws 12 and the number of the plurality of second clamping claws 22 are both 3 or more; the number of the first clamping claws 12 and the second clamping claws 22 is preferably three.

[0058] Preferably, outer walls of the first clamping jaw 12 and the second clamping jaw 22 are provided with a texture structure, and the texture structure is provided to increase the friction between the first clamping jaw 12, the second clamping jaw 22 and the waterway.

[0059] Further preferably, the texture structure is a horizontal stripe, a vertical stripe or a coarse texture structure.

[0060] The setting of the rib structure 13 forms a pressure between the outer wall of the first claw 12, the outer wall of the second claw 22 and the inner wall of the waterway. The friction generated by this pressure enables the water stopper to be better fixed; at the same time, the setting of the texture structure increases the friction, further improving the fixing effect.

[0061] Preferably, the first water-stop component 1 and the second water-stop component 2 are made of high-performance plastic materials, such as nylon PA (polyamide) and polyphenylene sulfide PPS materials, and other high-toughness and high-temperature resistant materials can also be selected; nylon PA (polyamide) and polyphenylene sulfide PPS both have the advantages of high tensile strength, wear resistance, chemical corrosion resistance and high temperature resistance, and have good toughness and high strength.

[0062] Preferably, if Figure 7 , Figure 8 As shown, a first mounting groove 111 is formed on the lower surface of the first body 11 , and a second mounting groove 211 is formed on the upper surface of the second body 21 . The first mounting groove 111 and the second mounting groove 211 are used for installing a water stopper.

[0063] Preferably, the first water-stop component 1 and the second water-stop component 2 can both be manufactured using an injection molding process, which greatly reduces production costs and increases production efficiency.

[0064] The use principle of the above embodiment is as follows:

[0065] When assembling the first water stop component 1 and the second water stop component 2, insert the side of the second body 21 located at the second claw 22 downward into the undercut groove 14 between the first claws 12 on the first body 11. When the second claw 22 is inserted downward, when the inner wall of the second claw 22 hits the triangular inclined surface structure 132 on the upper surface of the first body 11, the triangular inclined surface structure 132 will simultaneously press the second claw 22 outward, so that the second claw 22 is stretched outward and squeezed into the undercut groove 14, so that the first water stop component 1 and the second water stop component 2 are interlocked;

[0066] like Fig. 9 , Fig.10 As shown in the figure, when the cooling self-locking water stopper is installed in the cooling water channel of the plastic mold 3, two mounting rods are required, which are respectively recorded as the first mounting rod 4 and the second mounting rod 5. Fig. 9Taking the cold water channel in the example, firstly, the first installation rod 4 is placed in the first water channel 31, and then the first water stop component 1 is inserted into the second water channel 32, and the side of the first water stop component 1 away from the first claw 12 is in contact with the first installation rod 4; then the second water stop component 2 is placed in the second water channel 32, and the side of the second water stop component 2 located at the second claw 22 is aligned with the undercut groove 14 of the first claw 12, and the protrusion 51 at the end of the second installation rod 5 is inserted into the second installation groove 211 of the second water stop component 2, and then Push the second mounting rod 5 inward until the second claw 22 on the second water stop component 2 is squeezed into the undercut groove 14 to form an interlocking state; when the second claw 22 is pushed outward by the triangular slope structure 132, the first claw 12 is also squeezed outward, so that an interference fit relationship is formed between the outer wall of the first claw 12 and the second claw 22 and the inner wall of the second water channel 32, thereby playing a water-stopping role; after the water stop plug is installed, take out the first mounting rod 4 and the second mounting rod 5, and the process of installing the water stop plug at the required water-stopping position is completed.

[0067] The technical features of the above embodiments may be arbitrarily combined (as long as there is no contradiction in the combination of these technical features). To make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A self-locking water stopper, characterized in that: include: A first water-stop component and a second water-stop component, wherein the first water-stop component and the second water-stop component are made of plastic material; The first water-stopping component comprises a first body, the upper surface of which is provided with a plurality of first claws distributed along the outer edge thereof and at intervals in the circumferential direction, and undercut grooves are formed between adjacent first claws; The second water stop component comprises a second body, the lower surface of which is provided with a plurality of second claws close to the outer edge thereof and distributed at intervals in the circumferential direction, the plurality of second claws corresponding to the plurality of first claws one by one and interlaced and nested with each other; A rib structure is provided at the center position of the upper surface of the first body, the rib structure includes a central column and a plurality of triangular inclined surface structures provided along the outer wall of the central column, the plurality of triangular inclined surface structures correspond to the plurality of second claws one by one, and the outer edge of the bottom end of the triangular inclined surface structure extends into the undercut groove, so as to squeeze the second claws; When assembling the first water-stop component and the second water-stop component, the multiple second claws are inserted downward into the undercut groove, and the multiple triangular inclined surface structures squeeze the inner wall of the second claw so that the second claw is pushed outward and squeezed into the undercut groove. When the side of the first claw touches the side of the second claw, pressure continues to be applied, and the second claw squeezes the first claw outward, forcing the outer side of the first claw to be squeezed against the inner wall of the pipe, so that the first water-stop component and the second water-stop component form an interlocking state, and the static friction force generated by the first claw and the side wall of the pipe fixes the water stop plug at the specified position.

2. The self-locking water stopper according to claim 1, characterized in that: The first claw is in a "sector ring shape" in the radial direction and in an inverted trapezoidal structure in the axial direction, and its two side surfaces are inclined inward from top to bottom to form a first inclined surface; The two side surfaces of the second claw are inclined outward from top to bottom respectively to form a second inclined surface matched with the first inclined surface.

3. The self-locking water stopper according to claim 1, characterized in that: A plurality of first claws are evenly distributed on the upper surface of the first body; A plurality of second claws are evenly distributed on the lower surface of the second body.

4. The self-locking water stopper according to claim 1, characterized in that: The number of the plurality of first claws and the number of the plurality of second claws is three or more.

5. The self-locking water stopper according to claim 1, characterized in that: The outer walls of the first clamping claw and the second clamping claw are provided with a texture structure.

6. The self-locking water stopper according to claim 5, characterized in that: The grain structure is a horizontal stripe, a vertical stripe or a coarse grain structure.

7. The self-locking water stopper according to claim 1, characterized in that: The plastic material is polyamide or polyphenylene sulfide.

8. The self-locking water stopper according to claim 1, characterized in that: A first mounting groove is formed on the lower surface of the first body, and a second mounting groove is formed on the upper surface of the second body.

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