A shock-absorbing and buffering grip assembly for a pneumatic screwdriver

Abstract

This invention provides a shock-absorbing and buffering grip assembly for a pneumatic screwdriver, including a secondary shock-absorbing structure. The structure includes a mounting tube with a mounting chamber at its top. The mounting chamber has threads inside, and a threaded plate is threaded to the top of the inner wall of the chamber, while a base plate is threaded to the bottom. This invention utilizes a damping ball within the second shock-absorbing structure. During the rotation of the pneumatic screwdriver body at the bottom, it also moves left and right. Vibration is transmitted to the damping ball and the second damper, causing the damping ball to swing in the opposite direction to the movement of the pneumatic screwdriver body, thus reducing the vibration of the pneumatic screwdriver body.

Description

Technical Field

[0001] This utility model belongs to the field of pneumatic screwdriver technology, specifically relating to a shock-absorbing and buffering grip assembly for a pneumatic screwdriver. Background Technology

[0002] Pneumatic screwdrivers, as efficient power tools, are widely used in industrial fields such as mechanical assembly, automobile manufacturing, and electronic equipment assembly. They generate rotational power by driving an internal motor with compressed air, offering advantages such as high output torque, fast response speed, and low maintenance costs, making them particularly suitable for high-intensity, repetitive tasks. However, during operation, pneumatic screwdrivers generate significant vibration and impact loads due to internal mechanical impact and airflow pulsation. With prolonged use, this vibration is directly transmitted to the operator's hand and wrist through the handle, easily causing muscle fatigue, joint damage, and even occupational diseases (such as vibratory arm syndrome), seriously affecting operational safety and work efficiency. Utility Model Content

[0003] Purpose of utility model

[0004] To address the aforementioned technical problems, this utility model provides a pneumatic screwdriver shock-absorbing and buffering grip assembly to solve the technical problems mentioned in the background art.

[0005] Technical solution

[0006] To achieve the above objectives, the technical solution provided by this utility model is a pneumatic screwdriver shock-absorbing and buffering grip assembly, including a grip shock-absorbing structure, wherein a secondary shock-absorbing structure is provided inside the grip shock-absorbing structure.

[0007] A secondary damping structure includes an installation tube with an installation chamber at its top. The installation chamber has threads inside, and a threaded plate is threaded to the top of the inner wall of the installation chamber. A base plate is threaded to the bottom of the inner wall of the installation chamber. Second dampers are provided on the inner sides of the base plate and the threaded plate. Damping balls are provided between multiple second dampers. The second dampers are connected to the threaded plate, the base plate, and the damping balls via universal joints.

[0008] Preferably, the grip shock absorption structure includes a grip body and a moving block. The outer wall of the grip body is provided with an anti-slip ring, and the inner wall of the grip body is provided with mounting strips on both sides. The mounting strips have mounting grooves inside, and the inner wall of the mounting grooves is provided with guide strips on both sides.

[0009] Preferably, two movable blocks are slidably connected to both sides of the inner wall of the mounting groove, and an adjusting bolt is rotatably connected to the outermost outer wall of the movable block. The adjusting bolt is threadedly connected to the mounting strip. A first damper is provided between the two movable blocks, and a pull rod is rotatably connected to the outer wall of the movable block.

[0010] Preferably, a pneumatic screwdriver body is provided at the bottom of the mounting tube, and a threaded tube is provided at the top of the pneumatic screwdriver body, the threaded tube being threadedly connected to the mounting tube.

[0011] Preferably, the mounting tube has a connecting groove inside, and the connecting groove is rotatably connected to the pull rod.

[0012] Beneficial effects

[0013] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0014] This invention utilizes a damping ball installed inside the second shock-absorbing structure. When the pneumatic screwdriver body at the bottom rotates, it will also move left and right. The vibration is transmitted to the damping ball and the second damper, so that the swing direction of the damping ball is opposite to the movement direction of the pneumatic screwdriver body, thereby reducing the vibration of the pneumatic screwdriver body. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a three-dimensional cross-sectional view of the grip shock absorption structure of this utility model;

[0017] Figure 3 This is a three-dimensional unfolded view of the secondary shock absorption structure of this utility model.

[0018] Figure Labels

[0019] 1. Grip damping structure; 101. Grip body; 102. Anti-slip ring; 103. Mounting strip; 104. Mounting groove; 105. Guide strip; 106. Moving block; 107. Adjusting bolt; 108. First damper; 109. Tie rod; 2. Secondary damping structure; 201. Mounting tube; 202. Pneumatic screwdriver body; 203. Threaded tube; 204. Connecting groove; 205. Mounting chamber; 206. Threaded plate; 207. Base plate; 208. Second damper; 209. Damping ball. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "other end", "one side", "front", "both ends", "both sides", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Referring now to the accompanying drawings, the various figures are intended only to illustrate certain exemplary embodiments and are not intended to limit the scope of the invention. In the various figures, the same reference numerals denote the same or corresponding parts. The dimensions and scales in the various figures are also for illustrative purposes only and should not be construed as limiting the scope of the invention; these dimensions may be enlarged relative to actual products.

[0024] Reference Figure 1-3 The pneumatic screwdriver shock-absorbing and buffering grip assembly shown includes a grip shock-absorbing structure 1, and a secondary shock-absorbing structure 2 is provided inside the grip shock-absorbing structure 1.

[0025] The secondary damping structure 2 includes an installation tube 201. An installation chamber 205 is provided at the top of the installation tube 201. The installation chamber 205 has internal threads. A threaded plate 206 is threadedly connected to the top of the inner wall of the installation chamber 205, and a base plate 207 is threadedly connected to the bottom of the inner wall of the installation chamber 205. Second dampers 208 are provided on the inner sides of the base plate 207 and the threaded plate 206. Damping balls 209 are provided between multiple second dampers 208. The second dampers 208 are connected to the threaded plate 206, the base plate 207, and the damping balls 209 via universal joints. A pneumatic screwdriver body 202 is provided at the bottom of the installation tube 201, and a threaded tube 201 is provided at the top of the pneumatic screwdriver body 202. 3. The threaded tube 203 is threadedly connected to the mounting tube 201. The mounting tube 201 has a connecting groove 204 inside, which is rotatably connected to the pull rod 109. The bottom of the threaded tube 203 at the top of the pneumatic screwdriver body 202 is threadedly connected to fix the pneumatic screwdriver body 202. When the pneumatic screwdriver body 202 is running, it will generate forces in different directions, causing the mounting tube 201 to vibrate. The mounting tube 201 drives the damping ball 209 to vibrate and stretch the second damper 208. Then, the swing direction of the damping ball 209 is opposite to the movement direction of the pneumatic screwdriver body 202, so that the two forces neutralize each other, thereby reducing the swing range of the pneumatic screwdriver body 202 and thus reducing vibration.

[0026] Furthermore, in the above technical solution, the grip shock absorption structure 1 includes a grip body 101 and a moving block 106. An anti-slip ring 102 is provided on the outer wall of the grip body 101. Mounting strips 103 are provided on both sides of the inner wall of the grip body 101. Mounting grooves 104 are formed inside the mounting strips 103. Guide strips 105 are provided on both sides of the inner wall of the mounting groove 104. Two moving blocks 106 are slidably connected to both sides of the inner wall of the mounting groove 104. The outermost part of the moving block 106... An adjusting bolt 107 is rotatably connected to the outer wall of the side. The adjusting bolt 107 is threadedly connected to the mounting strip 103. A first damper 108 is provided between the two moving blocks 106. A tie rod 109 is rotatably connected to the outer wall of the moving block 106. At the same time, a small amount of vibration drives the tie rod 109 to rotate through the mounting tube 201, and causes the tie rod 109 to drive the moving block 106 to slide on the inner wall of the mounting groove 104. Then the moving block 106 squeezes or stretches the first damper 108, thereby reducing vibration a second time.

[0027] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. 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 modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A shock-absorbing and buffering grip assembly for a pneumatic screwdriver, characterized in that, include A grip shock absorption structure (1) is provided inside the grip shock absorption structure (1) with a secondary shock absorption structure (2); The secondary damping structure (2) includes an installation tube (201), an installation chamber (205) is provided at the top of the installation tube (201), the installation chamber (205) is threaded inside, a threaded plate (206) is threaded to the top of the inner wall of the installation chamber (205), a base plate (207) is threaded to the bottom of the inner wall of the installation chamber (205), a second damper (208) is provided on the inner side of the base plate (207) and the threaded plate (206), a damping ball (209) is provided between a plurality of second dampers (208), and the second dampers (208) are connected to the threaded plate (206), the base plate (207) and the damping ball (209) through a universal joint.

2. The pneumatic screwdriver shock-absorbing and buffering grip assembly according to claim 1, characterized in that: The grip shock absorption structure (1) includes a grip body (101) and a moving block (106). The outer wall of the grip body (101) is provided with an anti-slip ring (102). The two sides of the inner wall of the grip body (101) are provided with mounting strips (103). The mounting strips (103) have mounting grooves (104) inside. The two sides of the inner wall of the mounting grooves (104) are provided with guide strips (105).

3. The pneumatic screwdriver shock-absorbing and buffering grip assembly according to claim 2, characterized in that: Two movable blocks (106) are slidably connected to the two sides of the inner wall of the mounting groove (104). An adjusting bolt (107) is rotatably connected to the outermost outer wall of the movable block (106). The adjusting bolt (107) is threadedly connected to the mounting strip (103). A first damper (108) is provided between the two movable blocks (106). A pull rod (109) is rotatably connected to the outer wall of the movable block (106).

4. The pneumatic screwdriver shock-absorbing and buffering grip assembly according to claim 1, characterized in that: The bottom of the mounting tube (201) is provided with a pneumatic screwdriver body (202), and the top of the pneumatic screwdriver body (202) is provided with a threaded tube (203), which is threadedly connected to the mounting tube (201).

5. The pneumatic screwdriver shock-absorbing and buffering grip assembly according to claim 1, characterized in that: The mounting tube (201) has a connecting groove (204) inside, and the connecting groove (204) is rotatably connected to the pull rod (109).

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