A badminton racket grip sealing device

By designing a badminton racket handle sealing device with a multi-layer bracket and a ring-shaped ceramic heater, the problems of inconsistent sealing and burns caused by traditional manual sealing are solved, achieving uniform sealing of the handle and safe operation.

CN224428126UActive Publication Date: 2026-06-30JIANGSU REX COMPOSITE MATERIALS TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU REX COMPOSITE MATERIALS TECH CO LTD
Filing Date
2025-10-22
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional badminton racket handle sealing relies on manual control, resulting in incomplete sealing, inconsistent quality, and the risk of burns.

Method used

Design a badminton racket grip sealing device, which uses a multi-layer bracket to fix the racket, combined with an automatic feeding mechanism, and uses a limiting plate and traction component to ensure consistent grip length. A ring-shaped ceramic heater is used for 360° uniform heating to achieve non-contact operation.

Benefits of technology

This achieves uniformity and comprehensiveness in handle sealing, avoids the risk of burns, and improves the convenience and safety of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a badminton racket grip sealing device, including a movable frame. Multiple brackets are fixedly mounted on the side of the movable frame from top to bottom, and these brackets are used to secure the badminton racket. The movable frame is slidably connected to the top of a base, and a traction component is provided on the side of the base. The traction component is used to pull the movable frame to slide on the surface of the base. A limiting plate is fitted to the surface of the base, and a locking screw is threaded onto the side of the limiting plate. A heating component is provided on the side of the base, used to heat and seal the plastic portion of the inserted badminton racket grip. This invention, through its multi-layer bracket design, can simultaneously secure multiple rackets. Combined with the automatic feeding of the movable frame, multiple grips can be fitted with sealing film bags and sealed in a single operation. Furthermore, the limiting plate can limit the movement of the entire movable frame, ensuring a fixed length of the grip extending into the heating component, resulting in uniform and comprehensive sealing quality and reducing manual intervention.
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Description

Technical Field

[0001] This utility model relates to the field of badminton racket processing technology, specifically to a badminton racket grip sealing device. Background Technology

[0002] A badminton racket generally consists of a head, shaft, grip, and the joint between the frame and shaft. The length of a racket should not exceed 68 cm, with the grip and shaft not exceeding 42 cm, and the frame not exceeding 25 cm in length and 20 cm in width. With advancements in science and technology, racket development is moving towards lighter weight, stiffer frames, more flexible shafts, and lower air resistance. After manufacturing, badminton rackets typically undergo a plastic seal at the grip to prevent friction with other items during transport and handling, avoiding damage to the PU leather or wooden handle. The seal also prevents moisture and dust from causing the grip to warp or mold. Furthermore, the sealant secures the original straps on the grip, preventing them from loosening due to vibrations during transport.

[0003] Traditional sealing operations involve workers placing a plastic film bag over the handle and then inserting the handle into the heating element. The high temperature causes the plastic film to shrink and adhere tightly to the outside of the handle. However, the length of insertion into the heating element depends on the worker's experience. Sometimes the insertion is too deep and sometimes too shallow, resulting in incomplete sealing, inconsistent quality, and a risk of burns to workers. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a badminton racket handle sealing device, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A badminton racket grip sealing device includes a movable frame, on the side of which multiple brackets are fixed in layers from top to bottom for fixing the badminton racket; the movable frame is slidably connected to the top of a base, and the side of the base is provided with a traction component; the traction component is used to pull the movable frame to slide on the surface of the base.

[0007] The base is fitted with a limiting plate, and the side of the limiting plate is threaded with a locking screw; the side of the base is provided with a heating component, which is used to heat and seal the plastic part of the inserted badminton racket handle.

[0008] Furthermore, the movable frame includes vertical rods and horizontal rods, the cross-section of the vertical rods adopts a "U" shaped structure, and multiple horizontal rods are fixed between the vertical rods.

[0009] Furthermore, the bracket includes a first support plate, a first spring, a second support plate, and a movable block; the first support plate and the second support plate have the same structure and are arranged opposite to each other, the cross-sections of the first support plate and the second support plate adopt a "C" shaped structure, and the movable block is fixed in the middle of the first support plate and the second support plate; a movable hole is opened on the surface of the crossbar, and the movable block passes through and is slidably connected to the movable hole; the movable blocks on the sides of the first support plate and the second support plate are connected by a first spring, and the first spring is located in the movable hole.

[0010] Furthermore, the base includes a fixed seat, a slide rail, and a mounting plate; the mounting plate has mounting holes on its side and a fixed seat at its top, with the slide rail fixed to the top of the fixed seat surface; the slide rail is slidably connected to the vertical rod; and limiting grooves are formed on both sides of the slide rail, with the side of the vertical rod extending into the limiting grooves.

[0011] Furthermore, the traction assembly includes a reversing wheel, a second spring, a traction rope, and a force-applying plate; the traction rope is fixed to the side of the movable frame, and the reversing wheel is rotatably connected to the side of the base; the traction rope passes through the reversing wheel and connects to the force-applying plate; a sliding groove is opened on the side of the fixed base, and the force-applying plate extends to the side at the extension of a "T"-shaped structure; the extension of the force-applying plate is slidably connected to the sliding groove; the other side of the movable frame is connected to the base via a second spring.

[0012] Furthermore, the heating assembly includes an insulation box, an insertion tube, and ceramic heaters; multiple ceramic heaters are arranged vertically inside the insulation box, and the spacing between the ceramic heaters is the same as the spacing between each bracket; the sides of the ceramic heaters are connected to the insertion tube.

[0013] Furthermore, the ceramic heater adopts a ring structure.

[0014] This utility model provides a plastic sealing device for a badminton racket grip. Compared with the prior art, it has the following advantages:

[0015] 1. This utility model can fix multiple rackets at the same time through a multi-layer bracket design. Combined with the automatic feeding of the moving frame, multiple grips can be fitted with plastic film bags and sealed in a single operation. In addition, the movement of the entire moving frame can be limited by the limiting plate to ensure that the length of the grips inserted into the heating component is fixed, the grips are sealed with uniform quality, and the sealing is comprehensive, reducing manual intervention.

[0016] 2. This utility model uses a ring-shaped ceramic heater in conjunction with an insulation box to ensure that the handle is heated evenly in 360°, and that the plastic seal layer has a consistent thickness and is free of bubbles; the distance between the two trays on the bracket can be adjusted by spring one to clamp and fix racket frames of different sizes, and the limiting plate and traction component work together to control the movement stroke and accurately match the handle length; the foot-controlled traction component enables non-contact operation to avoid the risk of burns, and spring two automatically resets for convenience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of this utility model is shown;

[0019] Figure 2 A schematic diagram of the heating assembly structure of this utility model is shown;

[0020] Figure 3 This utility model is shown Figure 1 Enlarged structural diagram at point A in the diagram;

[0021] Figure 4 This utility model is shown Figure 1 Enlarged structural diagram at point B in the diagram;

[0022] The diagram shows: 100, badminton racket; 200, movable frame; 201, vertical bar; 202, horizontal bar; 2021, movable hole; 300, bracket; 301, support plate one; 302, spring one; 303, support plate two; 304, movable block; 400, base; 401, fixed seat; 4011, slide groove; 402, slide rail; 4021, limiting groove; 403, mounting plate; 500, limiting plate; 501, locking screw; 600, traction assembly; 601, reversing wheel; 602, spring two; 603, traction rope; 604, force plate; 700, heating assembly; 701, heat preservation box; 702, insertion tube; 703, ceramic heater. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Example

[0025] To address the technical problems in the background art, the following badminton racket handle sealing device is provided:

[0026] Combination Figure 1 As shown, the present invention provides a badminton racket grip sealing device, including a movable frame 200, the movable frame 200 including a vertical rod 201 and a horizontal rod 202, the cross section of the vertical rod 201 adopts a "U" shaped structure, and multiple horizontal rods 202 are fixed between the vertical rods 201; for example, four horizontal rods 202 are fixed between the vertical rods 201.

[0027] The movable frame 200 has multiple brackets 300 fixed in layers from top to bottom on its side. For example, four brackets 300 are provided, and the brackets 300 are used to fix the badminton racket 100; Figure 4 As shown, the bracket 300 includes a first support plate 301, a first spring 302, a second support plate 303, and a moving block 304. The first support plate 301 and the second support plate 303 have the same structure and are arranged opposite to each other. The cross-sections of the first support plate 301 and the second support plate 303 are "C" shaped, and the openings of the first support plate 301 and the second support plate 303 are opposite to each other. The moving block 304 is fixed in the middle of the first support plate 301 and the second support plate 303. The surface of the crossbar 202 has a moving hole 2021, and the moving block 304 passes through and slides through the moving hole 2021. The moving block 304 on the side of the first support plate 301 and the second support plate 303 is connected by the first spring 302, which is located in the moving hole 2021. Insert the frame of the badminton racket 100 between support plate 1 301 and support plate 2 303. When the frame is inserted, it pushes support plate 1 301 and support plate 2 303 away from each other, causing spring 1 302 to be stretched, so that the frame is locked between support plate 1 301 and support plate 2 303. Since the center of the line connecting support plate 1 301 and support plate 2 303 is aligned with the entry end of heating component 700, after the frame is inserted with support plate 1 301 and support plate 2 303 aligned, the badminton racket 100 is aligned with heating component 700.

[0028] The movable frame 200 is slidably connected to the top of the base 400, and a traction component 600 is provided on the side of the base 400; the traction component 600 is used to pull the movable frame 200 to slide on the surface of the base 400; Figure 1 and Figure 3 As shown, the traction assembly 600 includes a reversing wheel 601, a second spring 602, a traction rope 603, and a force-applying plate 604. The traction rope 603 is fixed to the side of the movable frame 200, and the reversing wheel 601 is rotatably connected to the side of the base 400. The traction rope 603 passes through the limiting plate 500 and passes through the reversing wheel 601 to connect to the force-applying plate 604. A sliding groove 4011 is formed on the side of the fixed base 401, and the force-applying plate 604 extends to the side at the extension of a "T"-shaped structure. The extension of the force-applying plate 604 is slidably connected to the sliding groove 4011. The other side of the movable frame 200 is connected to the base 400 by the second spring 602. When sealing is required, the force-applying plate 604 is pushed to the left, and the movement of the force-applying plate 604 pulls the movable frame 200 to the right through the traction rope 603, so that the badminton racket 100 is inserted into the heating assembly 700 for sealing.

[0029] To prevent the movable frame 200 from moving excessively or not moving at all, thus preventing the handle from being fully sealed, a limiting plate 500 is connected to the surface of the base 400. The side of the limiting plate 500 is threadedly connected to a locking screw 501. Based on the distance between the movable frame 200 and the heating component 700 under no external force, as well as the length of the badminton racket 100 and the handle length, the distance that the movable frame 200 needs to move when the handle is fully sealed is determined. Then, the limiting plate 500 is moved to the end point of the movable frame 200's movement, and then the locking screw 501 is tightened. The limiting plate 500 is used to limit the movement of the movable frame 200.

[0030] A heating assembly 700 is provided on the side of the base 400. The heating assembly 700 is used to heat and seal the plastic part of the grip of the badminton racket 100 that is inserted. The heating assembly 700 includes a heat preservation box 701, an insertion tube 702, and a ceramic heater 703; as shown... Figure 2As shown, multiple ceramic heaters 703 are arranged vertically inside the insulation box 701, and the spacing between the ceramic heaters 703 is the same as the spacing between the brackets 300; the sides of the ceramic heaters 703 are connected to the insertion tubes 702. The ceramic heaters 703 adopt a ring structure to ensure that the handle is uniformly heated and sealed on all four sides. The ceramic heater 703 is an existing type of heater, a high-efficiency heater with uniform heat distribution, and a metal alloy with excellent thermal conductivity, ensuring uniform surface temperature and eliminating hot and cold spots in the equipment. Ceramic heaters are existing technology and are suitable for electric heating products such as hair straighteners, curling irons, electric irons, soldering irons, hair dryers, dryers, steamers, warm air blowers, toilet warm water seats, and medical devices. In terms of material, PTC ceramic heating elements are thermistors, composed of PTC ceramic heating elements and aluminum tubes.

[0031] To ensure stable movement of the mobile frame 200, the base 400 includes a fixed seat 401, a slide rail 402, and a mounting plate 403. The mounting plate 403 has mounting holes on its side and a fixed seat 401 at its top. The slide rail 402 is fixed to the top surface of the fixed seat 401. The slide rail 402 is slidably connected to the vertical rod 201. Limiting grooves 4021 are formed on both sides of the slide rail 402, and the side of the vertical rod 201 extends into the limiting grooves 4021.

[0032] Working principle and usage process of this utility model:

[0033] First, based on the distance between the movable frame 200 and the heating component 700 under no external force, as well as the length of the badminton racket 100 and the handle length, determine the distance the movable frame 200 needs to move when the handle is fully encapsulated. That is, how far the movable frame 200 needs to move so that the handle can be fully inserted into the ceramic heater 703. After determining this, move the limiting plate 500 to the end point of the movable frame 200's movement, and then tighten the locking screw 501 to limit the movement of the movable frame 200 using the limiting plate 500.

[0034] Then, insert the frame of the badminton racket 100 between the first support plate 301 and the second support plate 303. When the frame is inserted, push the first support plate 301 and the second support plate 303 away from each other, so that the first spring 302 is stretched and the frame is locked between the first support plate 301 and the second support plate 303; turn on the ceramic heater 703 in the heating assembly 700.

[0035] The operator can sit next to the base 400, insert the racket end of the badminton racket 100 to be sealed into the bracket 300, then open the plastic film bag with both hands and put the sealed plastic film bag over the handle. After all the plastic film bags are in place, step on the force plate 604 (or push it manually) and push the force plate 604 to the left. The movement of the force plate 604 pulls the moving frame 200 to the right through the traction rope 603, so that the badminton racket 100 is inserted into the ceramic heater 703 for sealing. The sealing time is 3 seconds. Then, slowly release the force plate 604 with your foot, so that the entire moving frame 200 slowly returns to its original position under the action of the second spring 602, completing the sealing.

[0036] Compared to the traditional method of opening a plastic film bag with one hand and holding a badminton racket with the other to put on the plastic film bag, this application is more convenient and efficient. Multiple rackets can be secured simultaneously, and with the automatic feeding mechanism of the moving frame, multiple rackets can be fitted with plastic film bags and sealed in a single operation. Furthermore, a limiting plate can limit the movement of the entire moving frame, ensuring a fixed length of the racket inserted into the heating element, resulting in uniform and comprehensive sealing quality and reducing manual intervention.

[0037] This invention uses a ring-shaped ceramic heater in conjunction with an insulation box to ensure that the handle is heated evenly in 360°, and that the plastic seal layer has a consistent thickness and is free of bubbles. The distance between the two trays on the bracket can be adjusted by spring one to clamp and fix racket frames of different sizes. The limiting plate and the traction component work together to control the movement stroke and accurately match the handle length. The foot-controlled traction component enables non-contact operation, avoiding the risk of burns. Spring two automatically resets, making it convenient and easy to use.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A badminton racket grip sealing device, characterized in that: The device includes a movable frame (200), on which multiple brackets (300) are fixed in layers from top to bottom on the side. The brackets (300) are used to fix badminton rackets (100). The movable frame (200) is slidably connected to the top of a base (400), and the side of the base (400) is provided with a traction component (600). The traction component (600) is used to pull the movable frame (200) to slide on the surface of the base (400). The base (400) is fitted with a limiting plate (500) on its surface, and a locking screw (501) is threadedly connected to the side of the limiting plate (500); a heating component (700) is provided on the side of the base (400), and the heating component (700) is used to heat and seal the plastic part of the grip of the badminton racket (100) that has been inserted.

2. A badminton racket handle plastic sealing device according to claim 1, characterized in that: The mobile frame (200) includes vertical rods (201) and horizontal rods (202). The cross section of the vertical rods (201) adopts a "U" shaped structure, and multiple horizontal rods (202) are fixed between the vertical rods (201).

3. A badminton racket handle plastic sealing device according to claim 2, characterized in that: The bracket (300) includes a first tray (301), a first spring (302), a second tray (303), and a moving block (304). The first tray (301) and the second tray (303) have the same structure and are arranged opposite to each other. The cross-sections of the first tray (301) and the second tray (303) adopt a "C" shape structure, and the moving block (304) is fixed in the middle of the first tray (301) and the second tray (303). The surface of the crossbar (202) is provided with a moving hole (2021), and the moving block (304) passes through and slides through the moving hole (2021). The moving block (304) on the side of the first tray (301) and the second tray (303) are connected by the first spring (302), and the first spring (302) is located in the moving hole (2021).

4. The badminton racket grip sealing device according to claim 3, characterized in that: The base (400) includes a fixed seat (401), a slide rail (402), and a mounting plate (403); the mounting plate (403) has mounting holes on its side and a fixed seat (401) is provided at the top of the mounting plate (403), and the slide rail (402) is fixed at the top of the surface of the fixed seat (401); the slide rail (402) is slidably connected to the vertical rod (201); and the two side walls of the slide rail (402) have limiting grooves (4021), and the side of the vertical rod (201) extends into the limiting grooves (4021).

5. A badminton racket handle plastic sealing device according to claim 4, characterized in that: The traction assembly (600) includes a reversing wheel (601), a second spring (602), a traction rope (603), and a force-applying plate (604); the traction rope (603) is fixed to the side of the movable frame (200), and the reversing wheel (601) is rotatably connected to the side of the base (400); the traction rope (603) passes through the reversing wheel (601) and connects to the force-applying plate (604); a sliding groove (4011) is opened on the side of the fixed base (401), and the force-applying plate (604) extends to the side at the extension of the "T"-shaped structure; the extension of the force-applying plate (604) is slidably connected to the sliding groove (4011); the other side of the movable frame (200) is connected to the base (400) by the second spring (602).

6. A badminton racket handle plastic sealing device according to claim 1, characterized in that: The heating assembly (700) includes an insulation box (701), an insertion tube (702), and a ceramic heater (703); multiple ceramic heaters (703) are arranged vertically inside the insulation box (701), and the spacing between the ceramic heaters (703) is the same as the spacing between each bracket (300); the side of the ceramic heater (703) is connected to the insertion tube (702).

7. A badminton racket handle plastic sealing device according to claim 6, characterized in that: The ceramic heater (703) adopts a ring structure.