A type of all-plastic polymer corrosion-resistant hose clamp

Abstract

This utility model discloses an all-plastic polymer corrosion-resistant hose clamp, relating to the field of filter element components. The key technical points are: it includes a clamp body and a pin made of all-plastic polymer material. A central groove is formed at the top center of the clamp body, and insertion holes A and B are respectively formed on both sides of the central groove at the top of the clamp body. The effect is that the clamp body and pin, made entirely of all-plastic polymer material, are combined with a winding thread, which contains no metal ions. Furthermore, the all-plastic polymer material has high corrosion resistance, fundamentally avoiding the problem of traditional metal clamps easily rusting in acidic, alkaline, and humid environments, eliminating the risk of rust products contaminating the filter media. It is also suitable for some special industries that require filters to be free of metal ions. The rotational motion is converted into linear tightening force by the cooperation between the rod body and the connecting groove. The wound thread is further tightened as the pin rotates, precisely improving the clamping force by shortening the effective tension section length.

Description

Technical Field

[0001] This utility model relates to the field of filter element components, and more specifically, it relates to an all-plastic polymer corrosion-resistant hose clamp. Background Technology

[0002] In industrial filtration, chemical production, water treatment, and environmental protection equipment, filter cartridges are core filtration elements, and the tightness of their outer filter cloth directly affects filtration efficiency and equipment operational stability. The filter cloth must be tightly wrapped around the surface of the filter cartridge; if it is not securely fixed, wrinkles, slippage, or gaps can easily occur, allowing unfiltered media to directly penetrate, reducing filtration accuracy, and even causing equipment malfunction.

[0003] Traditional filter cloth fixing often uses metal clamps, which are widely used in normal environments due to their high strength. However, under conditions such as acid and alkaline solutions, humid water vapor, or corrosive gases, metal materials are prone to oxidation and corrosion, which not only shortens their service life but also causes corrosion products to contaminate the filter media. Moreover, some special industries (such as the lithium battery industry) require that the filter interior be free of any metal ions (these industries have extremely high requirements for the cleanliness of the filter interior and strictly prohibit the presence of any metal ions), which also makes metal clamps unsuitable. In addition, traditional metal clamps mostly use a single ring-shaped clamp to directly tighten the filter cloth, lacking a refined tension adjustment mechanism, making it difficult to achieve uniform tightening based on the flexible characteristics of the filter cloth—either the filter cloth loosens due to insufficient pre-tightening force or the filter cloth tears due to excessive local pressure.

[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes an all-plastic polymer corrosion-resistant hose clamp. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an all-plastic polymer corrosion-resistant hose clamp.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant all-plastic polymer hose clamp, comprising a clamp body and a pin made of all-plastic polymer material. A central groove is provided at the top center of the clamp body. Insertion holes A and B are respectively provided on both sides of the central groove at the top of the clamp body. A connecting groove for the pin to pass through is provided between the two sides of the clamp body separated by the central groove near the insertion hole A. A fixing shaft is fixedly connected to the central groove near the insertion hole B between the two sides of the clamp body. A through hole for the winding wire to pass through is provided in the center of the pin.

[0007] Preferably, the fixed shaft and the hoop are integrally formed.

[0008] Preferably, the pin includes a rod body and an operating part, the operating part is fixedly connected to one end of the rod body, and the through hole is formed on the rod body.

[0009] Preferably, the rod body is provided with a step, which is adapted to the connecting groove.

[0010] Preferably, the through hole is circular in shape, and the diameter of the through hole is adapted to the diameter of the winding thread passing through it.

[0011] Preferably, the all-plastic polymer corrosion-resistant material is nylon, polyoxymethylene, or polyvinyl chloride.

[0012] Preferably, the cross-section of the operating part is a regular hexagon.

[0013] Preferably, the inner wall of the connecting groove is provided with anti-slip texture.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model uses an all-plastic polymer material to integrally form the hoop and pin in conjunction with the winding thread. It contains no metal ions and the all-plastic polymer material has high corrosion resistance, fundamentally avoiding the problem of traditional metal clamps being prone to rust in acidic, alkaline, and humid environments. It also eliminates the risk of rust products contaminating the filter media. At the same time, it is suitable for some special industries (such as the lithium battery industry) that require the filter to be free of metal ions. The rotational motion is converted into linear tightening force by the cooperation between the rod and the connecting groove. The wound thread is further tightened as the pin rotates. By shortening the effective tension section length, the clamping force is precisely improved, overcoming the disadvantage of existing metal clamps that cannot finely adjust the tension. It avoids wrinkles and gaps caused by insufficient pre-tightening and prevents filter cloth tearing caused by excessive tightening, thus solving the problems in the background technology.

[0016] 2. This utility model eliminates the connection gaps or assembly gaps that may exist in the split structure by making the fixed shaft and hoop body an integral molding structure. It avoids the fixed shaft from breaking or loosening due to weak connection points during the stress process such as the winding wire being tightened and the pin being rotated. It ensures that the fixed shaft can stably bear the tension load of the winding wire and provides reliable support for tension transmission.

[0017] 3. This utility model can effectively prevent the rod from slipping in the connecting groove through the anti-slip texture, ensuring that the rotational motion is stably converted into the tightening force of the winding line, and avoiding tension loss caused by relative sliding. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the specific structure of the pin when the step on the pin is not inserted into the connecting groove in this utility model;

[0020] Figure 2 This utility model Figure 1 Another perspective on the specific structure;

[0021] Figure 3 This is a schematic diagram showing the specific structure of the step on the pin in this utility model when it is inserted into the connecting groove;

[0022] Figure 4 This utility model Figure 3 Another perspective on the specific structure;

[0023] Figure 5 This is a schematic diagram of the specific structure of the hoop in this utility model;

[0024] Figure 6 This is a schematic diagram of the specific structure of the pin in this utility model;

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of the hose clamp and the winding wire in this utility model (the arrows in the figure indicate the direction of the winding wire insertion into insertion hole A and insertion hole B).

[0026] In the diagram: 1. Hoop; 2. Pin; 201. Rod body; 2011. Step; 202. Operating part; 3. Central groove; 4. Insertion hole A; 5. Insertion hole B; 6. Connecting groove; 7. Fixed shaft; 8. Through hole; 9. Winding thread. Detailed Implementation

[0027] like Figure 1-7As shown, this utility model provides a corrosion-resistant all-plastic polymer hose clamp, including a clamp body 1 and a pin 2 made of all-plastic polymer material (such as nylon, polyoxymethylene, polyvinyl chloride, etc.). A central groove 3 is formed at the top center of the clamp body 1. Insertion holes A4 and B5 are respectively formed on both sides of the central groove 3 at the top of the clamp body 1. Connecting grooves 6 for the pin 2 to pass through are formed between the two sides of the clamp body 1 separated by the central groove 3 near the insertion holes A4. The central groove 3 is located between the two sides of the clamp body 1 near the insertion holes B5. A fixed shaft 7 is fixedly connected to the part. A through hole 8 is opened in the middle of the pin 2 for the winding wire 9 to pass through. The pin 2 includes a rod body 201 and an operating part 202. The operating part 202 is fixedly connected to one end of the rod body 201. The through hole 8 is opened on the rod body 201. The through hole 8 is circular in shape, and the diameter of the through hole 8 is adapted to the diameter of the winding wire 9 passing through it (the through groove is slightly larger than the winding wire 9 to ensure that the winding wire 9 can pass through, but cannot pass through after knotting). A step 2011 is provided on the rod body 201, and the step 2011 is adapted to the connecting groove 6.

[0028] This invention addresses the core pain points of traditional metal clamp fixation through targeted design, achieving reliable binding of the filter cloth. Firstly, the clamp body 1 and pin 2 are integrally made of all-plastic polymer material, containing no metal ions. Furthermore, the all-plastic polymer material has high corrosion resistance, fundamentally avoiding the problem of traditional metal clamps easily rusting in acidic, alkaline, and humid environments, eliminating the risk of rust products contaminating the filter media. It is also suitable for certain special industries (such as the lithium battery industry) that require filters to be free of metal ions. During fixation, one end of the winding wire 9 is inserted through the insertion hole A. 4. After being inserted into the hoop 1, it is fixed to the fixed shaft 7 to form a tension fixing end (passing through the hoop 1 above the insertion hole A4, and then being fastened to the fixed shaft 7 from below the hoop 1). The other end is inserted through the insertion hole B5 and then through the through hole 8 of the pin 2 rod body 201 (passing through the insertion hole B5 above, then passing the pin 2 rod body 201 through the connecting groove 6, and then passing through the through hole 8 on the pin 2 from below the hoop 1). Multiple turns of the winding thread 9 between the fixed shaft 7 and the pin 2 are used (generally three turns, depending on the actual situation; the final diameter of the loop should be slightly larger than the diameter of the filter element). It can be fitted onto the filter cloth wrapped around the filter element without leaving too much space for tightening, forming a tension adjustment section. The loop is then fitted onto the filter cloth wrapped around the filter element—this structure solves the problem of existing metal clamps lacking a precise adjustment mechanism. The friction generated by the loop can buffer tension fluctuations, avoiding localized over-tightening or loosening caused by a single clamping method, achieving uniform force on the filter cloth. When the hose clamp is fitted onto the filter cloth surface, pre-tightening is achieved by pulling the winding thread 9 on the insertion hole B5 side, and the knot at the through hole 8 forms a temporary lock, ensuring no slippage of the filter cloth during the pre-tightening stage. Subsequently, with the help of tools… The rotating pin 2 operating part 202 uses the cooperation between the rod part 201 and the connecting groove 6 to convert the rotational motion into a linear tightening force. The wound wire 9 is further tightened as the pin 2 rotates. By shortening the effective tension section length, the clamping force is precisely improved, overcoming the drawback of existing metal clamps that cannot finely adjust the tension. This avoids wrinkles and gaps caused by insufficient pre-tightening and prevents tearing of the filter cloth caused by excessive tightening. Finally, pressing the operating part 202 causes the step 2011 of the rod part 201 to engage with the connecting groove 6. Through rigid contact, the rotation and axial displacement of the pin 2 are restricted, forming a permanent locking structure.

[0029] Furthermore, firstly, the fixed shaft 7 and the hoop 1 are integrally formed, eliminating the connection gaps or assembly gaps that may exist in the split structure. This prevents the fixed shaft 7 from breaking or loosening due to weak connection points during the tensioning of the winding thread 9 and the rotation of the pin 2, ensuring that the fixed shaft 7 can stably bear the tension load of the winding thread 9 and provide reliable support for tension transmission. Secondly, the cross-section of the operating part 202 can be a regular hexagon, which is compatible with conventional tools such as wrenches. Finally, the inner wall of the connecting groove 6 is provided with anti-slip textures, which can significantly improve the static friction on the contact surface between the pin 2 rod body 201 and the inner wall of the connecting groove 6 by increasing the coefficient of friction between them. When the pin 2 rotates to tighten the winding thread 9, the anti-slip textures can effectively prevent the rod body 201 from slipping in the connecting groove 6, ensuring that the rotational motion is stably converted into the tightening force of the winding thread 9 and avoiding tension loss due to relative sliding.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A type of all-plastic polymer corrosion-resistant hose clamp, characterized in that: The device includes a hoop (1) and a pin (2) made of all-plastic polymer material. The top of the hoop (1) has a central groove (3) in the middle. The top of the hoop (1) has an insertion hole A (4) and an insertion hole B (5) on both sides of the central groove (3). The two sides of the hoop (1) separated by the central groove (3) have a connecting groove (6) near the insertion hole A (4) for the pin (2) to pass through. The central groove (3) is fixedly connected to a fixing shaft (7) near the insertion hole B (5) between the two sides of the hoop (1). The pin (2) has a through hole (8) in the middle for the winding wire (9) to pass through.

2. The all-plastic polymer corrosion-resistant hose clamp according to claim 1, characterized in that: The fixed shaft (7) and the hoop (1) are integrally formed.

3. The all-plastic polymer corrosion-resistant hose clamp according to claim 1, characterized in that: The pin (2) includes a rod body (201) and an operating part (202). The operating part (202) is fixedly connected to one end of the rod body (201), and the through hole (8) is opened on the rod body (201).

4. The all-plastic polymer corrosion-resistant hose clamp according to claim 3, characterized in that: The rod body (201) is provided with a step (2011), which is adapted to the connecting groove (6).

5. The all-plastic polymer corrosion-resistant hose clamp according to claim 1, characterized in that: The through hole (8) is circular in shape, and the diameter of the through hole (8) is adapted to the diameter of the winding line (9) passing through it.

6. The all-plastic polymer corrosion-resistant hose clamp according to claim 1, characterized in that: The all-plastic polymer corrosion-resistant material is nylon, polyoxymethylene, or polyvinyl chloride.

7. The all-plastic polymer corrosion-resistant hose clamp according to claim 3, characterized in that: The cross-section of the operating part (202) is a regular hexagon.

8. The all-plastic polymer corrosion-resistant hose clamp according to claim 1, characterized in that: The inner wall of the connecting groove (6) is provided with anti-slip texture.

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