699 parallel clamp anti-slip structure

By setting a moving plate inside the moving arm of the parallel clamp to contact the iron rod, and using high-hardness materials and an interference fit between the handle and the screw, the problem of clamping instability caused by wear is solved, achieving stability and precise adjustment, reducing costs and improving reliability.

CN224360057UActive Publication Date: 2026-06-16DURAPRO IND LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DURAPRO IND LTD
Filing Date
2025-08-01
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing parallel clamps suffer from increased clearance due to wear after long-term use, affecting clamping stability. Existing technologies also increase manufacturing costs and have high process requirements.

Method used

At least three movable plates are set inside the movable arm to contact the iron rod, forming a limiting mechanism. The contact surfaces between the movable plates and the iron rod are made of a material with high hardness. At the same time, the handle and the screw are interference-fitted to achieve precise adjustment of the movable arm along the axial direction of the iron rod.

Benefits of technology

It effectively prevents the sliding arm from slipping and the clamping from failing, improves clamping stability and accuracy, reduces manufacturing costs, and ensures long-term reliability and precise adjustment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224360057U_ABST
    Figure CN224360057U_ABST
Patent Text Reader

Abstract

The utility model discloses 699 parallel clamp anti -skidding structure relates to parallel clamp technical field. The utility model discloses a fixed arm part, mobile arm part, iron pole, mobile arm, handle, screw rod and metal support board, the mobile arm is equipped with the slot, and at least three mobile plates are installed in the slot, the mobile plate is contacted with the iron pole, when the mobile arm is inclined, and the mobile plate is in abutment with the iron pole and forms the limit, the mobile arm part is slid and is equipped with on the iron pole, one end of screw rod is connected with handle, and the other end is connected with mobile arm, and the rotation handle drive mobile arm part moves along the iron pole, the metal support board is fixed in mobile arm outer cover, the mobile arm is embedded in the slot of metal support board, and the iron pole runs through metal support board, mobile arm outer cover and mobile arm. The utility model discloses through using the material of higher hardness to make mobile plate and iron pole contact surface, has increased the anti -attrition ability, has improved the stability in the use process.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of parallel clamp technology, specifically to the anti-slip structure of the 699 parallel clamp. Background Technology

[0002] Parallel clamps, as a basic mechanical clamping tool, are widely used in machining, assembly, and fixing. Their typical structure consists of a fixed arm, a moving arm, a drive screw, and an operating handle, achieving clamping and releasing functions through threaded transmission. The working principle of these tools mainly relies on the linear movement of the moving arm along a guide rod to generate clamping force. Since their emergence in the early 20th century, their structure has undergone various improvements. In industrial production, parallel clamps, due to their simple structure and convenient operation, have become commonly used positioning and clamping devices in workshops.

[0003] The currently widely used parallel clamping structure has significant shortcomings: the mating holes between the moving arm casting and the guide rod will wear after long-term use, leading to an increase in the mating clearance and seriously affecting clamping stability. To compensate for this wear, existing technologies typically employ methods to improve the machining accuracy of the mating holes, which not only increases manufacturing costs but also places higher demands on the assembly process.

[0004] To address this, a 699 parallel clamp anti-slip structure is proposed. Utility Model Content

[0005] The purpose of this utility model is to solve the problems mentioned in the background art above, and to provide a 699 parallel clamp anti-slip structure.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] The 699 parallel clamp anti-slip structure includes a fixed arm, a movable arm, an iron rod, a movable arm, a handle, a screw, and a metal support plate. The movable arm has a groove in which at least three movable plates are installed. The movable plates are in contact with the iron rod. When the movable arm is tilted, the movable plates abut against the iron rod to form a limit.

[0008] Furthermore, the movable arm is slidably sleeved on the iron rod, one end of the screw is connected to the handle, and the other end is connected to the movable arm. Rotating the handle drives the movable arm to move along the iron rod.

[0009] Furthermore, the metal support plate is fixed inside the outer sleeve of the movable arm, the movable arm is embedded in the groove of the metal support plate, and the iron rod passes through the metal support plate, the outer sleeve of the movable arm, and the movable arm.

[0010] Furthermore, the material hardness of the movable plate is higher than that of the movable arm, and the contact surface between the movable plate and the iron rod is inclined or curved.

[0011] Furthermore, the handle is interference-fitted with the screw, and the axial movement of the screw drives the moving arm to move along the iron rod.

[0012] Furthermore, the fixed arm is fixedly connected to one end of the iron rod, and the movable arm can move along the axial direction of the iron rod. The movable arm forms a mechanical limiting structure with the iron rod through the movable plate.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by setting at least three movable plates inside the movable arm and contacting the iron rod, forms an effective limiting mechanism, which can effectively prevent the movable arm from sliding and clamping failure due to prolonged use. Compared with the prior art, this utility model has a simple structure and low manufacturing cost. Furthermore, by using a material with high hardness to make the contact surfaces of the movable plates and the iron rod, wear resistance is increased, and stability during use is improved.

[0015] 2. This utility model achieves precise adjustment of the moving arm along the axial direction of the iron rod through the interference fit between the handle and the screw, further enhancing the stability and control accuracy of the clamping force and effectively avoiding problems such as loose clamping due to improper operation. The metal support plate and the outer sleeve of the moving arm cooperate to make the entire structure more compact, reducing deviations caused by looseness or misalignment between components during operation and ensuring reliability after long-term use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is an enlarged view of a partial structure of this utility model;

[0018] Figure 3 This is an exploded view of the structure of this utility model;

[0019] Reference numerals: 1 Fixed arm, 2 Moving arm, 3 Moving plate, 4 Iron rod, 5 Moving arm, 6 Handle, 7 Screw, 8 Metal support plate, 9 Moving arm cover. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] like Figures 1 to 3 As shown, the 699 parallel clamp anti-slip structure includes a fixed arm 1, a movable arm 2, an iron rod 4, a movable arm 5, a handle 6, a screw 7, and a metal support plate 8. The movable arm 5 has a groove, in which at least three movable plates 3 are installed. The movable plates 3 contact the iron rod 4. When the movable arm 5 tilts, the movable plates 3 abut against the iron rod 4 to form a limiting action. In this embodiment, the movable arm 5 has multiple grooves, in which three movable plates 3 are installed. These movable plates 3 contact the iron rod 4, and when the movable arm 5 tilts, they form a limiting action through physical contact to prevent the movable arm 5 from sliding. This structure utilizes the contact action between the movable plates 3 and the iron rod 4 to provide mechanical restraint during clamping, avoiding the slippage problem caused by wear in traditional structures.

[0025] The movable arm 2 is slidably sleeved on the iron rod 4. One end of the screw 7 is connected to the handle 6, and the other end is connected to the movable arm 5. Rotating the handle 6 drives the movable arm 2 to move along the iron rod 4.

[0026] More specifically, the movable arm 2 is slidably fitted onto the iron rod 4, thus allowing it to slide freely along the axis of the iron rod 4. By rotating the handle 6, the interference fit with the screw 7 converts the rotational motion into axial movement, thereby moving the movable arm 2 along the iron rod 4. This design ensures clamping flexibility, allowing users to adjust the clamping force and clamping position as needed.

[0027] The metal support plate 8 is fixed inside the movable arm sleeve 9, the movable arm 5 is embedded in the groove of the metal support plate 8, and the iron rod 4 passes through the metal support plate 8, the movable arm sleeve 9 and the movable arm 5.

[0028] It should be noted that the metal support plate 8 is fixed inside the movable arm sleeve 9. The movable arm 5 is embedded in the groove of the metal support plate 8, and the iron rod 4 passes through the metal support plate 8, the movable arm sleeve 9, and the movable arm 5. This structure ensures the stability of the entire assembly during operation, preventing loosening or displacement due to forces generated during use, thereby improving the reliability of the overall clamping system.

[0029] The material hardness of the movable plate 3 is higher than that of the movable arm 5, and the contact surface between the movable plate 3 and the iron rod 4 is inclined or curved.

[0030] More specifically, the movable plate 3 is made of a material with higher hardness, which has stronger wear resistance than the movable arm 5, effectively preventing slippage or loss of clamping force due to wear during use. In addition, the contact surface between the movable plate 3 and the iron rod 4 is designed as a slope or arc surface, which makes the pressure distribution in the contact area more uniform, reduces local wear, extends service life, and ensures clamping accuracy.

[0031] The handle 6 is interference-fitted with the screw 7, and the axial movement of the screw 7 drives the movable arm 2 to move along the iron rod 4.

[0032] More specifically, the handle 6 is fixed by an interference fit with the screw 7. When the handle 6 is rotated, the axial movement of the screw 7 causes the moving arm 2 to slide along the iron rod 4. This design provides a precise adjustment mechanism, allowing users to adjust the clamping force according to actual needs without worrying about loose components affecting the clamping effect.

[0033] The fixed arm 1 is fixedly connected to one end of the iron rod 4, the movable arm 2 can move along the axial direction of the iron rod 4, and the movable arm 5 forms a mechanical limiting structure with the iron rod 4 through the movable plate 3.

[0034] It should be noted that the fixed arm 1 is fixedly connected to one end of the iron rod 4, while the movable arm 2 can move freely along the axial direction of the iron rod 4. A movable plate 3 is set between the movable arm 5 and the iron rod 4 as a mechanical limiting structure. When the movable arm 5 is tilted, the movable plate 3 contacts the iron rod 4 and forms a limiting effect, ensuring the stability and positional accuracy of the clamp during the clamping process, thereby preventing the clamp from sliding or misoperating during operation.

[0035] In summary, this invention, by incorporating at least three movable plates 3 inside the movable arm 5 that contact the iron rod 4, forms an effective limiting mechanism, effectively preventing sliding and clamping failure of the movable arm due to prolonged use. Compared to existing technologies, this invention has a simpler structure and lower manufacturing cost. Furthermore, by using a high-hardness material for the contact surfaces of the movable plates 3 and the iron rod 4, wear resistance is increased, improving stability during use. The interference fit between the handle 6 and the screw 7 enables precise adjustment of the movable arm 5 along the axial direction of the iron rod 4, further enhancing the stability and control accuracy of the clamping force, effectively preventing loosening or insufficient clamping due to improper operation. The metal support plate 8, in conjunction with the movable arm outer sleeve 9, makes the entire structure more compact, reducing deviations caused by loosening or misalignment between components during operation, ensuring reliability after long-term use.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. 699 Parallel Clamp Anti-Slip Structure, characterized in that, The invention includes a fixed arm (1), a movable arm (2), an iron rod (4), a movable arm (5), a handle (6), a screw (7), and a metal support plate (8). The movable arm (5) is provided with a groove, and a movable plate (3) is installed in the groove. The movable plate (3) is in contact with the iron rod (4). When the movable arm (5) is tilted, the movable plate (3) abuts against the iron rod (4) to form a limit.

2. The 699 parallel clamp anti-slip structure according to claim 1, characterized in that, The movable arm (2) is slidably sleeved on the iron rod (4). One end of the screw (7) is connected to the handle (6), and the other end is connected to the movable arm (5). Rotating the handle (6) drives the movable arm (2) to move along the iron rod (4).

3. The 699 parallel clamp anti-slip structure according to claim 2, characterized in that, The metal support plate (8) is fixed inside the movable arm sleeve (9), and the movable arm (5) is embedded in the groove of the metal support plate (8). The iron rod (4) passes through the metal support plate (8), the movable arm sleeve (9) and the movable arm (5).

4. The 699 parallel clamp anti-slip structure according to claim 1, characterized in that, The material hardness of the movable plate (3) is higher than that of the movable arm (5), and the contact surface between the movable plate (3) and the iron rod (4) is inclined or curved.

5. The 699 parallel clamp anti-slip structure according to claim 4, characterized in that, The handle (6) is interference-fitted with the screw (7), and the axial movement of the screw (7) drives the moving arm (2) to move along the iron rod (4).

6. The 699 parallel clamp anti-slip structure according to claim 1, characterized in that, The fixed arm (1) is fixedly connected to one end of the iron rod (4), the movable arm (2) can move along the axial direction of the iron rod (4), the movable arm (5) is provided with a groove, and at least three movable plates (3) are installed in the groove, forming a mechanical limiting structure with the iron rod (4) through the movable plates (3).