A lightweight and wear-resistant pressure strip

Abstract

This utility model relates to the field of lightweight and wear-resistant pressure strip technology, specifically to a lightweight and wear-resistant pressure strip, including a pressure strip seat and a main pressure strip. The pressure strip seat has two sets, respectively disposed on both sides of the main pressure strip. The transverse support plate of the pressure strip seat has several through slots. A first limiting part is vertically disposed on the pressure strip seat away from the through slots, and a second support part is disposed on the side of the first limiting part. A second limiting part is vertically disposed on the second support part, forming a limiting groove between the second support part and the second limiting part. Several second engaging teeth are disposed on one side of the first limiting part, and several third engaging teeth are disposed on one side of the second limiting part. This utility model uses a combination of the pressure strip seat and the main pressure strip, allowing the pressure strip seat and the main pressure strip to be separated and each part to be replaceable, reducing maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of lightweight and wear-resistant pressure strip technology, specifically lightweight and wear-resistant pressure strips. Background Technology

[0002] Pressure strips, as a common functional component, are widely used in transportation (such as high-speed rail and automobile doors and windows), industrial equipment (such as machine tool guide rail protection), furniture and building materials, and electronic appliances. Their main functions include: guiding, sealing, decoration, and protecting internal cables or components from external impacts, wear, and environmental pollution.

[0003] Existing pressure strips, regardless of whether they are made of metal, pure plastic, or composite materials, are all non-separable integral structures. Localized wear necessitates replacement of the entire strip, resulting in significant material waste. Under reciprocating friction and load-bearing conditions, pressure strips often show preferential wear in localized areas (such as the middle section or corners in contact with sliding parts), while other areas remain intact. However, the integral structure requires the removal and replacement of the entire pressure strip, increasing user maintenance costs. Utility Model Content

[0004] The purpose of this invention is to provide a lightweight and wear-resistant pressure strip, which combines a pressure strip base and a main pressure strip, allowing the pressure strip base and the main pressure strip to be separated from each other, making each part replaceable and reducing maintenance costs.

[0005] To address the problems of existing technologies, this utility model provides a lightweight and wear-resistant pressure strip, including a pressure strip seat and a main pressure strip. The pressure strip seat has two sets, which are respectively arranged on both sides of the main pressure strip. The transverse support plate of the pressure strip seat is provided with several through slots. A first limiting part is vertically arranged on the pressure strip seat away from the through slots, and a second support part is provided on the side of the first limiting part. A second limiting part is vertically arranged on the second support part. A limiting groove is formed between the second support part and the second limiting part. A number of second engaging teeth are provided on one side of the first limiting part, and a number of third engaging teeth are provided on one side of the second limiting part.

[0006] Preferably, the bottom of the main pressure strip is provided with vertically arranged plugs on both sides that can be inserted into the limiting groove, and each plug is provided with a buckle on both sides that can be locked between the second locking tooth and the third locking tooth.

[0007] Preferably, the bottom of the main pressure strip is provided with support members on both sides at an angle, and the bottom of the support members can contact the top of the second support.

[0008] Preferably, a plurality of reinforcing ribs are provided between the second support portion and the first limiting portion, and the cross-section of each reinforcing rib is triangular.

[0009] Preferably, the side of the first limiting part away from the second support part is provided with an extension part along the length direction of the first limiting part, and the extension part is provided with an extension groove along its length direction.

[0010] Preferably, a first support portion is vertically provided on the transverse support plate of the pressure strip seat at a position away from the connecting portion, and the first support portion has a slot, the slot having a plurality of first engaging teeth.

[0011] Preferably, the pressure strip seat and the main pressure strip are made of wear-resistant plastic material.

[0012] The advantages of this utility model compared to the prior art are:

[0013] This application achieves convenient assembly, maintenance, and functional expansion of the pressure strip through a modular structural design. The specific technical solution is as follows: In terms of core structural composition, this application is provided with two major components: a pressure strip base and a main pressure strip. The pressure strip base integrates a first limiting part and a second limiting part. The inner sidewall of the first limiting part is machined with several second locking teeth, and the inner sidewall of the second limiting part is correspondingly machined with several third locking teeth. Correspondingly, the bottom of the main pressure strip is integrally formed with a connector, and the outer walls on both sides of the connector are respectively provided with buckles that are adapted to the structure of the second locking teeth and the third locking teeth. During assembly, the connector at the bottom of the main pressure strip is inserted along the gap between the first and second limiting parts until the buckle forms a bidirectional engagement with the second and third locking teeth, quickly achieving a stable combination of the main pressure strip and the pressure strip seat. When maintenance or partial replacement is required, the buckle can be disengaged from the locking constraints of the second and third locking teeth using controlled external force, allowing the main pressure strip to be removed from the pressure strip seat without replacing the entire pressure strip, significantly reducing maintenance costs and material waste for users. To enhance the functional expandability of the pressure strip, this application also includes a first support part and an extension part on the pressure strip seat, which can flexibly accommodate or expand other functional components such as sealing elements, guide blocks, and buffer components according to actual application needs, breaking through the limitations of traditional single-function pressure strips. Furthermore, both the pressure strip seat and the main pressure strip of this application are made of wear-resistant plastic material. This material not only meets the requirements of lightweight design but also possesses excellent wear resistance, effectively resisting surface wear under reciprocating friction and load compression conditions, extending the service life of the pressure strip. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a lightweight and wear-resistant pressure strip according to this utility model.

[0015] Figure 2 This is a front view structural diagram of a lightweight and wear-resistant pressure strip according to this utility model.

[0016] Figure 3 This is a schematic diagram of the main pressure strip structure of a lightweight and wear-resistant pressure strip according to this utility model.

[0017] Figure 4 This is a schematic diagram of the pressure strip seat structure of a lightweight and wear-resistant pressure strip according to this utility model.

[0018] The numbers in the diagram are as follows: 1. Pressure strip seat; 11. Through groove; 12. First support part; 121. First snap-fit ​​tooth; 13. Addition part; 131. Addition groove; 14. First limiting part; 141. Second snap-fit ​​tooth; 15. Second support part; 16. Second limiting part; 161. Third snap-fit ​​tooth; 17. Reinforcing rib; 2. Main pressure strip; 21. Support member; 22. Insertion member; 221. Buckle. Detailed Implementation

[0019] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0020] Reference Figures 1-4 As shown, this utility model provides a lightweight and wear-resistant pressure strip, including a pressure strip seat 1 and a main pressure strip 2. The pressure strip seat 1 has two sets, respectively disposed on both sides of the main pressure strip 2. The pressure strip seat 1 serves as the support and assembly base for the main pressure strip 2. The two sets of pressure strip seats 1 are symmetrically arranged on both sides of the main pressure strip 2, forming a bidirectional support structure. Its core function is to provide a stable installation reference for the main functional components. Simultaneously, the symmetrical layout balances the stress on the main pressure strip 2 under reciprocating friction and load compression conditions, avoiding structural deformation caused by stress concentration on one side, and ensuring the overall guidance of the pressure strip. The transverse support plate of the pressure strip seat 1... The pressure strip seat 1 is provided with several through slots 11. The transverse support plate is the bearing base of the pressure strip seat 1, which bears the load transmitted by the main pressure strip 2 and distributes it to the terminal installation structure. The pressure strip seat 1 is provided with a first limiting part 14 at a position away from the through slots 11. A second support part 15 is provided on the side of the first limiting part 14. A second limiting part 16 is provided on the second support part 15. A limiting groove is formed between the second support part 15 and the second limiting part 16. A number of second locking teeth 141 are provided on one side of the first limiting part 14. A number of third locking teeth 161 are provided on one side of the second limiting part 16. The bottom of the main pressure strip 2 is vertically provided with two plugs 22 that can be inserted into the limiting groove. Each plug 22 has a buckle 221 on both sides that can be locked between the second locking tooth 141 and the third locking tooth 161. The limiting grooves wrap and limit the plugs 22 in both directions to prevent the main pressure strip 2 from moving up and down during reciprocating motion. At the same time, the third locking tooth 161 on the second limiting part 16 and the second locking tooth 141 of the first limiting part 14 form a symmetrical locking structure to ensure the uniformity of the locking strength.

[0021] According to the installation standard of the terminal product, first fix the two sets of pressure strip seats 1 in the preset installation position; then align the plugs 22 on both sides of the bottom of the main pressure strip 2 with the limiting groove formed by the second support part 15 and the second limiting part 16 on the pressure strip seat 1, and apply an insertion force in the vertical direction. During the process of the plugs 22 entering the limiting groove, the buckles 221 on both sides are squeezed by the inner walls of the first limiting part 14 and the second limiting part 16, and produce elastic contraction deformation. When the plugs 22 are inserted to the preset depth, the buckles 221 move to the tooth groove position of the second locking tooth 141 and the third locking tooth 161. After losing the squeezing constraint, they elastically reset and are embedded in the tooth groove to form a two-way locking engagement. At this time, the plugs 22 are wrapped and constrained by the limiting groove, and the main pressure strip 2 and the two sets of pressure strip seats 1 form a stable whole, completing the assembly. Moreover, the assembly process does not require additional fasteners, simplifying the operation process and reducing the assembly cost.

[0022] Support members 21 are inclinedly arranged on both sides of the bottom of the main pressure strip 2, and the bottom of the support members 21 can contact the top of the second support part 15. A plurality of reinforcing ribs 17 are provided between the second support part 15 and the first limiting part 14, and the cross section of the reinforcing ribs 17 is triangular. The triangular cross section has optimal structural stability and resistance to deformation, which can effectively enhance the connection rigidity between the second support part 15 and the first limiting part 14.

[0023] After the bottom of the support member 21 is in close contact with the top of the second support part 15, the vertical load borne by the main pressure strip 2 during use can be decomposed into a component force along the length of the support member 21 and transmitted to the second support part 15, thereby improving the installation stability of the main pressure strip 2.

[0024] An extension part 13 is provided on the side of the first limiting part 14 away from the second support part 15 along the length direction of the first limiting part 14, and an extension groove 131 is provided on the extension part 13 along its length direction. The extension groove 131 can be used to insert external functional components such as sealing lips, buffer blocks, and guide strips as needed, adapting to the needs of multiple scenarios. A first support part 12 is vertically provided on the horizontal support plate of the pressure strip seat 1 away from the extension part 13, and the first support part 12 has a slot with several first locking teeth 121. The slot inside the first support part 12 provides space for external installation components. The tooth shape of the several first locking teeth 121 in the slot is the same as that of the second locking teeth 141, which can form a mechanical lock with the locking protrusion of the external component, realizing a quick and detachable connection between the pressure strip seat 1 and the terminal structure. Compared with traditional screw fixing, the locking engagement can complete the assembly and disassembly without tools, improving installation efficiency and avoiding the difficulty of later maintenance caused by screw corrosion.

[0025] When the surface of the main pressure strip 2 is worn or the extension component needs to be replaced, external force is applied to disengage the buckle 221 from the second locking tooth 141 and the third locking tooth 161, and the main pressure strip 2 can be disassembled for individual replacement without replacing the entire pressure strip seat 1. The extension component can be directly pulled out from the extension slot 131 for replacement, making the operation convenient.

[0026] The pressure strip seat 1 and the main pressure strip 2 are made of wear-resistant plastic material. The pressure strip seat 1 is made of wear-resistant plastic material (such as modified polypropylene, nylon, etc.), which not only meets the requirements of lightweighting, but also resists friction wear during long-term use. It can resist surface scratches and wear caused by reciprocating friction and extend service life.

[0027] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A lightweight and wear-resistant pressure strip, characterized in that: The device includes a pressure strip seat (1) and a main pressure strip (2). The pressure strip seat (1) has two sets and is respectively arranged on both sides of the main pressure strip (2). The horizontal support plate of the pressure strip seat (1) is provided with a plurality of through slots (11). The pressure strip seat (1) is vertically provided with a first limiting part (14) away from the through slots (11). The side of the first limiting part (14) is provided with a second support part (15). The second support part (15) is vertically provided with a second limiting part (16). A limiting groove is formed between the second support part (15) and the second limiting part (16). The side of the first limiting part (14) is provided with a plurality of second locking teeth (141). The side of the second limiting part (16) is provided with a plurality of third locking teeth (161).

2. The lightweight and wear-resistant pressure strip according to claim 1, characterized in that: The bottom of the main pressure strip (2) is vertically provided with plugs (22) that can be inserted into the limiting groove. Each plug (22) has a buckle (221) on both sides that can be locked between the second locking tooth (141) and the third locking tooth (161).

3. The lightweight and wear-resistant pressure strip according to claim 2, characterized in that: The main pressure strip (2) has two inclined support members (21) on its bottom sides, and the bottom of the support member (21) can contact the top of the second support part (15).

4. The lightweight and wear-resistant pressure strip according to claim 3, characterized in that: A plurality of reinforcing ribs (17) are provided between the second support part (15) and the first limiting part (14), and the cross section of each reinforcing rib (17) is triangular.

5. The lightweight and wear-resistant pressure strip according to claim 4, characterized in that: The side of the first limiting part (14) away from the second support part (15) is provided with an extension part (13) along the length direction of the first limiting part (14), and the extension part (13) is provided with an extension groove (131) along its length direction.

6. The lightweight and wear-resistant pressure strip according to claim 1, characterized in that: The first support part (12) is vertically arranged on the transverse support plate of the pressure strip seat (1) away from the connecting part (13), and the first support part (12) has a slot, and the slot has a plurality of first engaging teeth (121).

7. The lightweight and wear-resistant pressure strip according to claim 1, characterized in that: The pressure strip seat (1) and the main pressure strip (2) are made of wear-resistant plastic material.

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