Pin shaft auxiliary device capable of adjusting tensile force

Abstract

The utility model relates to the technical field of pin shafts, in particular to an adjustable tension pin shaft auxiliary device which comprises an adjusting knob, the lower end of the adjusting knob is fixedly connected with a two-way screw, an adjusting assembly is arranged on the outer side of the two-way screw, and the adjusting assembly comprises an adjusting ring, a first connecting block, a supporting rod, a second connecting block, a plug pin and a baffle. Through the arrangement of the adjusting assembly, the adjusting knob is rotated to drive the two-way screw rod to rotate, so that the two groups of adjusting rings on the surface of the two-way screw rod move towards the center, the four groups of baffles on the outer side move outwards, the overall tensioning size of the device is adjusted, and the device is suitable for different hole diameters; and the damaged pin shaft can be replaced in time under emergency conditions for emergency use, and tight and reliable connection of the pin shaft is ensured, so that equipment can operate normally.

Description

Technical Field

[0001] This utility model relates to the field of pin technology, specifically to an adjustable tension pin auxiliary device. Background Technology

[0002] A pin is a standardized fastener primarily used at the hinge joint of two parts to form a hinge connection. Pins have wide applications in mechanical engineering; they can achieve both static fixed connections and relative movement with the connected parts. Pins are typically locked with cotter pins, ensuring reliable operation and easy disassembly, making them crucial components for power transmission in many mechanical manufacturing equipment. Due to their simple structure yet stable power transmission and high durability, pins are widely used in machining, automotive manufacturing, aerospace, and many other fields.

[0003] In machining, pins are commonly used in machine tools, punch presses, and combination machine tools. They connect a portion of the machine tool to another portion of its transmission components via a transmission sleeve and feed tube to achieve a transmission effect. In the automotive manufacturing industry, pins are used to transmit power to different parts of a vehicle, including the engine, drive shafts, gears, and turbocharger drives, ensuring the safe operation of the car.

[0004] A search revealed patent application number (202323474308.3), which discloses "a three-way adjustment device for a pin shaft," comprising a base, a height adjustment device mounted on the base for adjusting the height of the pin shaft, and a horizontal adjustment device mounted on the height adjustment device for adjusting the left and right sides of the pin shaft. A threaded seat that mates with the pin shaft is provided on the top of the horizontal adjustment device away from the base. One end of the pin shaft is connected to a handwheel, and rotating the handwheel adjusts the forward and backward displacement of the pin shaft. This three-way adjustment device can achieve three-way adjustment of the pin shaft.

[0005] However, the above-mentioned device has the following problems: the pin is easily damaged, loosened or even detached when subjected to large impacts or excessive wear during use. In case of emergencies, it is impossible to replace the worn or damaged pin in time and ensure that the pin connection is tight and reliable, so the equipment cannot be used normally and the work efficiency is affected. To solve the above problems, we propose an adjustable tension pin auxiliary device. Utility Model Content

[0006] The purpose of this utility model is to provide an adjustable tension pin auxiliary device to solve the problems mentioned in the background art, which are that the pin is easily damaged, loosened or even detached when subjected to large impacts or excessive wear during use, and that it is impossible to replace the worn or damaged pin in time in case of emergencies, and to ensure that the pin connection is tight and reliable.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable tension pin auxiliary device, comprising an adjustment knob, a bidirectional screw fixedly connected to the lower end of the adjustment knob, an adjustment assembly provided on the outer side of the bidirectional screw, the adjustment assembly comprising an adjustment ring, a first connecting block, a support rod, a second connecting block, a pin, and a baffle.

[0008] Two sets of adjusting rings are provided on the outer side of the bidirectional screw. Four sets of first connecting blocks are provided on the outer side of each set of adjusting rings. A support rod is provided inside the first connecting block. A second connecting block is provided on the outer side of the support rod. A pin is provided inside the second connecting block and the first connecting block. A baffle is provided on the outer side of the two opposing sets of second connecting blocks.

[0009] Preferably, a first protective cloth is fixedly connected to both sides of the baffle, and the other end of the first protective cloth is connected to the edge of another set of baffles.

[0010] Preferably, the inner wall of the adjusting ring is provided with a thread that matches the surface of the bidirectional screw. The first connecting block is symmetrically installed around the adjusting ring. One end of the support rod is rotatably connected to the first connecting block, and the other end of the support rod is rotatably connected to the second connecting block. Pins are inserted into both ends of the support rod. Two sets of second connecting blocks are fixedly connected to the inner wall of the baffle.

[0011] Preferably, two sets of second protective cloths are provided on the outer side of the bidirectional screw, and the upper and lower ends of the baffle are connected to the edges of the second protective cloths.

[0012] Preferably, the inner walls on both sides of the baffle are provided with slots, the diameter of which is adapted to the diameter of the first protective cloth.

[0013] Preferably, the bidirectional screw has a movable groove inside, and a movable ring is rotatably connected in the movable groove. The outer surface of the movable ring is connected to the second protective cloth.

[0014] Preferably, the outer surface of the adjustment knob is provided with a rubber pad, and the surface of the rubber pad is provided with a wavy anti-slip texture with a depth of two millimeters.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention adjusts the tension of the device by rotating the adjustment knob to drive the bidirectional screw to rotate, causing the two sets of adjustment rings on the surface of the bidirectional screw to move towards the center, thereby moving the four sets of baffles on the outer side outward. This adjusts the overall tension of the device and is suitable for different hole sizes. It can also replace damaged pins in case of emergencies for emergency use and ensures that the pin connection is tight and reliable, thus enabling the equipment to operate normally. 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 This is a front view schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the structural development of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0021] Figure 4 This is a top sectional view of the structure of this utility model;

[0022] Figure 5 This utility model Figure 3 A schematic cross-sectional view of the structure at the bidirectional screw;

[0023] Figure 6 This utility model Figure 5 A magnified view of part A in the diagram.

[0024] In the diagram: 1. Adjustment knob; 2. Two-way screw; 3. Adjustment assembly; 301. Adjustment ring; 302. First connecting block; 303. Support rod; 304. Second connecting block; 305. Pin; 306. Baffle; 4. First protective cloth; 5. Slot; 6. Second protective cloth; 7. Movable groove; 8. Movable ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-6 This utility model provides an embodiment of an adjustable tension pin auxiliary device, comprising an adjustment knob 1, a bidirectional screw 2 fixedly connected to the lower end of the adjustment knob 1, and an adjustment assembly 3 disposed on the outer side of the bidirectional screw 2. The adjustment assembly 3 includes an adjustment ring 301, a first connecting block 302, a support rod 303, a second connecting block 304, a pin 305, and a baffle 306.

[0027] Two sets of adjusting rings 301 are provided on the outer side of the bidirectional screw 2. Four sets of first connecting blocks 302 are provided on the outer side of each set of adjusting rings 301. A support rod 303 is provided inside the first connecting block 302. A second connecting block 304 is provided on the outer side of the support rod 303. A pin 305 is provided inside the second connecting block 304 and the first connecting block 302. A baffle 306 is provided on the outer side of the two sets of second connecting blocks 304 opposite to each other.

[0028] This device, by adjusting the settings of component 3, solves the problem that pins are easily damaged, loosened, or even fall off due to large impacts or excessive wear during use, and that worn or damaged pins cannot be replaced in time in case of emergencies, while ensuring that the pin connection is tight and reliable.

[0029] Furthermore, a first protective cloth 4 is fixedly connected to both sides of the baffle 306, and the other end of the first protective cloth 4 is connected to the edge of another set of baffles 306. The first protective cloth 4 has a certain degree of toughness. Figure 2 As shown, this structure is used to protect the interior of the baffle 306 through the first protective cloth 4, preventing external stones or debris from entering the interior and affecting the normal use of the device.

[0030] Furthermore, the inner wall of the adjusting ring 301 is provided with threads that are compatible with the surface of the bidirectional screw 2. The first connecting blocks 302 are symmetrically installed around the adjusting ring 301. One end of the support rod 303 is rotatably connected to the first connecting block 302, and the other end of the support rod 303 is rotatably connected to the second connecting block 304. Pins 305 are inserted into both ends of the support rod 303. Two sets of second connecting blocks 304 are fixedly connected to the inner wall of the baffle 306. For example... Figure 3 As shown, this structure is used to rotate the bidirectional screw 2 by rotating the adjustment knob 1, so that the two sets of adjustment rings 301 on the surface of the bidirectional screw 2 move towards the center. Under the action of the support rod 303 rotatingly connected with the first connecting block 302 and the second connecting block 304, the baffle 306 is pushed outward to adjust the tension of the device in the hole and ensure that the baffle 306 is tightly attached to the inner wall of the hole.

[0031] Furthermore, two sets of second protective cloths 6 are provided on the outer side of the bidirectional screw 2, and the upper and lower ends of the baffle 306 are connected to the edges of the second protective cloths 6. Figure 5 As shown, this structure is used to prevent external objects from entering the device from the upper and lower sides of the bidirectional screw 2 through the second protective cloth 6, so as to prevent damage to the internal parts and improve the stability of the device.

[0032] Furthermore, the inner walls on both sides of the baffle 306 are provided with slots 5, the diameter of which is adapted to the diameter of the first protective cloth 4. Figure 4As shown, this structure is used to allow the first protective fabric 4 to be stored in the slot 5 by shrinking the four sets of baffles 306 to their minimum diameter value.

[0033] Furthermore, the bidirectional screw 2 has an internal movable groove 7, within which a movable ring 8 is rotatably connected. The outer surface of the movable ring 8 is connected to the second protective cloth 6, which has a certain degree of toughness. Figure 6 As shown, this structure is used to make the movable ring 8 rotate in the movable groove 7 when the bidirectional screw 2 is rotated, so as to avoid pulling and damaging the second protective cloth 6 and improve the service life of the device.

[0034] Furthermore, the outer surface of the adjustment knob 1 is provided with a rubber pad, and the surface of the rubber pad is provided with a wavy anti-slip texture with a depth of two millimeters. Figure 1 As shown, this structure utilizes the cushioning and anti-slip properties of rubber. Its anti-slip texture enhances its anti-slip effect, and the two-millimeter depth ensures that the anti-slip texture still provides an anti-slip effect even after a certain degree of wear.

[0035] Working principle: When using, such as Figure 1 and Figure 3 As shown, in case of emergency use, rotating the adjusting knob 1 drives the bidirectional screw 2 to rotate, causing the two sets of adjusting rings 301 on the surface of the bidirectional screw 2 to move towards the center. Through the rotatable connection between the support rod 303 and the first connecting block 302 and the second connecting block 304, the baffle 306 is pushed outward, adjusting the tension of the device within the hole to ensure that the baffle 306 is tightly fitted against the inner wall of the hole. Figure 4 and Figure 6 As shown, when the baffle 306 moves outward, the first protective cloth 4 stored in the slot 5 is pulled out of the slot 5 along with the movement of the baffle 306, and at the same time, the second protective cloth 6 on the top of the baffle 306 is stretched outward. The above is the complete working principle of this utility model.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adjustable tension pin auxiliary device, comprising an adjustment knob (1), characterized in that: The lower end of the adjustment knob (1) is fixedly connected to a bidirectional screw (2), and an adjustment assembly (3) is provided on the outside of the bidirectional screw (2). The adjustment assembly (3) includes an adjustment ring (301), a first connecting block (302), a support rod (303), a second connecting block (304), a pin (305), and a baffle (306). Two sets of adjusting rings (301) are provided on the outer side of the bidirectional screw (2). Four sets of first connecting blocks (302) are provided on the outer side of each of the two sets of adjusting rings (301). A support rod (303) is provided inside the first connecting block (302). A second connecting block (304) is provided on the outer side of the support rod (303). A pin (305) is provided inside the second connecting block (304) and the first connecting block (302). A baffle (306) is provided on the outer side of the two sets of second connecting blocks (304) opposite to each other.

2. The adjustable tension pin auxiliary device according to claim 1, characterized in that: The baffle (306) is fixedly connected to the two sides of the first protective cloth (4), and the other end of the first protective cloth (4) is connected to the edge of another set of baffles (306).

3. The adjustable tension pin auxiliary device according to claim 1, characterized in that: The inner wall of the adjusting ring (301) is provided with a thread that matches the surface of the bidirectional screw (2). The first connecting block (302) is symmetrically installed around the adjusting ring (301). One end of the support rod (303) is rotatably connected to the first connecting block (302), and the other end of the support rod (303) is rotatably connected to the second connecting block (304). Pins (305) are inserted into both ends of the support rod (303). Two sets of second connecting blocks (304) are fixedly connected to the inner wall of the baffle (306).

4. The adjustable tension pin auxiliary device according to claim 1, characterized in that: Two sets of second protective cloths (6) are provided on the outside of the bidirectional screw (2), and the upper and lower ends of the baffle (306) are connected to the edge of the second protective cloth (6).

5. The adjustable tension pin auxiliary device according to claim 1, characterized in that: The inner walls on both sides of the baffle (306) are provided with slots (5), the diameter of which is adapted to the first protective cloth (4).

6. The adjustable tension pin auxiliary device according to claim 1, characterized in that: The bidirectional screw (2) has a movable groove (7) inside, and a movable ring (8) is rotatably connected inside the movable groove (7). The outer surface of the movable ring (8) is connected to the second protective cloth (6).

7. The adjustable tension pin auxiliary device according to claim 1, characterized in that: The outer surface of the adjustment knob (1) is provided with a rubber pad, and the surface of the rubber pad is provided with a wavy anti-slip texture with a depth of two millimeters.

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