Anti-breakage threaded pin assembly

Abstract

The utility model discloses an anti-breakage threaded pin assembly, and particularly relates to the technical field of threaded pin assemblies, the anti-breakage threaded pin assembly comprises a threaded pin body and an anti-breakage assembly, the threaded pin body comprises a product root part and a product part, the product part is fixed at the front end of the product root part, the anti-breakage assembly comprises a pin sleeve, the pin sleeve is arranged on the outer wall of the product part, and the anti-breakage assembly is arranged on the outer wall of the product part. The rear end of the pin sleeve is in contact with the front end of the root of the product, a plurality of reinforcing ribs are fixedly arranged at the rear end of the pin sleeve, a plurality of inserting grooves matched with the reinforcing ribs are formed in the front end of the root of the product, and the reinforcing ribs are inserted into the inserting grooves respectively. The right angle at the front end of the root of the product is changed into the first R angle, the right angle at the rear end of the root of the product is changed into the second R angle, the stress concentration position of the root of the product can be changed, the strength of the root of the product can be improved, the service life is prolonged, and frequent breakage of the threaded pin body in the casting process is avoided. The cost of the threaded pin body can be reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of threaded pin assembly technology, and more specifically to a threaded pin assembly designed to prevent breakage. Background Technology

[0002] Threaded pin assemblies are common fasteners used in automotive transmission housings, typically for connecting or securing two parts. They have a threaded portion that screws into a pre-drilled hole to provide a secure connection. The design and application of threaded pins can be customized to meet specific application requirements.

[0003] For example, an expansion threaded locating pin with the prior art publication number CN221299733U can tightly abut against the locating hole wall of the two arms during use, meeting the requirements of UAV flight operations; while during non-use, the locating pin can be easily removed.

[0004] However, the above-mentioned existing technology still has the following problems when used: In the casting process, traditional threaded pins are prone to frequent breakage due to the right angle at the root of the product and stress concentration, which leads to increased costs and low production efficiency. Based on this, this utility model provides a threaded pin assembly to prevent breakage. Utility Model Content

[0005] To overcome the aforementioned deficiencies in the prior art, this utility model provides an anti-breakage threaded pin assembly. By changing the right angle at the front end of the product root to R-angle one and the right angle at the rear end to R-angle two, the stress concentration position at the product root can be changed. By utilizing the pin sleeve and multiple reinforcing ribs, the strength of the product root can be increased, the service life can be improved, and frequent breakage of the threaded pin body during the casting process can be avoided. This reduces the cost of the threaded pin body and improves production efficiency, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a threaded pin anti-breakage assembly, comprising a threaded pin body and an anti-breakage component. The threaded pin body includes a product root and a product part, the product part being fixed to the front end of the product root. The anti-breakage component includes a pin sleeve, the pin sleeve being on the outer wall of the product part, and the rear end of the pin sleeve contacting the front end of the product root. The rear end of the pin sleeve is fixedly provided with multiple reinforcing ribs. The front end of the product root is provided with multiple slots adapted to the reinforcing ribs, and the multiple reinforcing ribs are respectively inserted into the multiple slots. The outer edge of the rear end of the inner ring of the pin sleeve and the outer edge of the front end of the product root are both machined with an R-angle 1. The R-angle 1 of the outer edge of the rear end of the inner ring of the pin sleeve contacts the R-angle 1 of the outer edge of the front end of the product root. The outer edge of the rear end of the product root is machined with an R-angle 2.

[0007] In a preferred embodiment, multiple reinforcing ribs are arranged in a ring array on the outer wall of the pin sleeve, and multiple slots are arranged in a ring array on the outer wall of the front end of the product root. The reinforcing ribs can greatly improve the load-bearing capacity and strength of the product root.

[0008] In a preferred embodiment, a rubber sealing ring is provided between the rear end of the pin sleeve and the front end of the product root to improve the sealing performance between the pin sleeve and the product root.

[0009] In a preferred embodiment, the front end of the rubber sealing ring is provided with a plurality of protrusions, and the rear end of the pin sleeve is provided with a plurality of grooves that are adapted to the protrusions. Each protrusion is provided in each groove. By using the cooperation between the protrusions and the grooves, the rubber sealing ring is prevented from rotating and shifting when it is placed.

[0010] In a preferred embodiment, both the rear end of the pin sleeve and the front end of the product root are provided with annular grooves, and the two annular grooves are connected to each other, which facilitates the workers to weld the pin sleeve to the product root.

[0011] In a preferred embodiment, a second rubber sealing ring is provided between the pin sleeve and the product part. The second rubber sealing ring is sleeved on the outside of the product part to improve the sealing between the pin sleeve and the product part.

[0012] In a preferred embodiment, the outer wall of the second rubber sealing ring is fixedly provided with a plurality of limiting blocks, and the inner wall of the pin sleeve is provided with a plurality of limiting grooves adapted to the limiting blocks. Each limiting block is provided in each limiting groove to prevent the second rubber sealing ring from rotating and shifting when the pin sleeve is installed.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] This invention changes the stress concentration position at the root of the product by changing the right angle at the front end to R-angle one and the right angle at the rear end to R-angle two. By using a pin sleeve and multiple reinforcing ribs, the strength and lifespan of the product root can be increased, and frequent breakage of the threaded pin during the casting process can be avoided. This reduces the cost of the threaded pin and improves production efficiency.

[0015] Rubber sealing ring one can improve the sealing between the pin sleeve and the root of the product, preventing welding ash from flowing towards the center of the pin sleeve and the root of the product during the welding process, thus affecting the firmness between the pin sleeve and the root of the product. Rubber sealing ring two can improve the sealing between the pin sleeve and the product, thereby playing a role in dust prevention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2This is a structural diagram of the pin sleeve and the product part of this utility model;

[0018] Figure 3 for Figure 2 Rear view;

[0019] Figure 4 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 5 This is a rear view of the pin sleeve of this utility model;

[0021] Figure 6 This is a structural diagram of the rubber sealing ring 1, rubber sealing ring 2, and pin sleeve of this utility model.

[0022] The attached diagram is labeled as follows: 1. Threaded pin body; 2. Anti-breakage component; 3. Radius I; 4. Radius II; 5. Rubber sealing ring I; 6. Protrusion; 7. Groove; 8. Annular groove; 9. Rubber sealing ring II; 10. Limiting block; 11. Limiting groove;

[0023] Product base; 102, Product section;

[0024] 201. Pin sleeve; 202. Reinforcing rib; 203. Slot. Detailed Implementation

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Refer to the instruction manual appendix Figure 1-6 This utility model provides an anti-breakage threaded pin assembly, including a threaded pin body 1 and an anti-breakage component 2. The threaded pin body 1 includes a product root 101 and a product part 102. The product part 102 is fixed to the front end of the product root 101. The anti-breakage component 2 includes a pin sleeve 201. The pin sleeve 201 is on the outer wall of the product part 102, and the rear end of the pin sleeve 201 contacts the front end of the product root 101. A plurality of reinforcing ribs 202 are fixedly provided at the rear end of the pin sleeve 201. A plurality of slots 203 adapted to the reinforcing ribs 202 are opened at the front end of the product root 101. The plurality of reinforcing ribs 202 are respectively inserted into the plurality of slots 203.

[0027] Multiple reinforcing ribs 202 are arranged in a ring array on the outer wall of the pin sleeve 201, and multiple slots 203 are arranged in a ring array on the outer wall of the front end of the product root 101. The outer edge of the rear end of the inner ring of the pin sleeve 201 and the outer edge of the front end of the product root 101 are both machined with an R-angle 3. The R-angle 3 of the outer edge of the rear end of the inner ring of the pin sleeve 201 contacts the R-angle 3 of the outer edge of the front end of the product root 101. The outer edge of the rear end of the product root 101 is machined with an R-angle 4 to improve the strength of the product root 101.

[0028] Both the rear end of the pin sleeve 201 and the front end of the product root 101 are provided with annular grooves 8, and the two annular grooves 8 are connected to each other, which makes it convenient for workers to weld the pin sleeve 201 to the product root 101 together.

[0029] By changing the right angle at the front end of the product root 101 to R-angle 3 and the right angle at the rear end to R-angle 4, and by fitting a pin sleeve 201 onto the product part 102, with multiple reinforcing ribs 202 on the pin sleeve 201 inserted into multiple slots 203 at the front end of the product root 101, the firmness between the pin sleeve 201 and the product root 101 can be improved, as can the load-bearing capacity of the product root 101. At the same time, the setting of the pin sleeve 201 and R-angle 3 can change the stress concentration position of the product root 101, thereby increasing the strength and service life of the product root 101, avoiding frequent breakage of the threaded pin 1 during the casting process, and thus reducing the cost of the threaded pin 1 and improving production efficiency.

[0030] Refer to the instruction manual appendix Figure 1-6 A rubber sealing ring 5 is provided between the rear end of the pin sleeve 201 and the front end of the product root 101 to improve the sealing between the pin sleeve 201 and the product root 101. The front end of the rubber sealing ring 5 is fixedly provided with multiple protrusions 6, and the rear end of the pin sleeve 201 is provided with multiple grooves 7 that are adapted to the protrusions 6. Each protrusion 6 is provided in each groove 7. By using the cooperation between the protrusions 6 and the grooves 7, the rubber sealing ring 5 is prevented from rotating and shifting when it is placed.

[0031] A rubber sealing ring 201 is provided between the pin sleeve 201 and the product part 102. The rubber sealing ring 201 is sleeved on the outside of the product part 102 to improve the sealing between the pin sleeve 201 and the product part 102. At the same time, multiple limiting blocks 10 are fixedly provided on the outer wall of the rubber sealing ring 201. Multiple limiting grooves 11 adapted to the limiting blocks 10 are opened on the inner wall of the pin sleeve 201. Each limiting block 10 is provided in each limiting groove 11 to prevent the rubber sealing ring 201 from rotating and shifting when the pin sleeve 201 is installed.

[0032] By setting a rubber sealing ring 5 between the pin sleeve 201 and the product root 101, the sealing performance between the pin sleeve 201 and the product root 101 can be improved, preventing welding ash from flowing towards the center of the pin sleeve 201 and the product root 101 during the welding process, which would affect the firmness between the pin sleeve 201 and the product root 101. Multiple protrusions 6 and multiple grooves 7 are provided on the rubber sealing ring 5 to prevent the rubber sealing ring 5 from rotating. A second rubber sealing ring 9 is set between the pin sleeve 201 and the product part 102 to play a dustproof role. Multiple limiting blocks 10 and multiple limiting grooves 11 on the second rubber sealing ring 9 cooperate to prevent the second rubber sealing ring 9 from rotating.

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A threaded pin anti-breakage assembly, characterized in that: It includes a threaded pin body (1) and an anti-breakage component (2). The threaded pin body (1) includes a product root (101) and a product part (102). The product part (102) is fixed to the front end of the product root (101). The anti-breakage component (2) includes a pin sleeve (201), which is located on the outer wall of the product part (102), and the rear end of the pin sleeve (201) contacts the front end of the product root (101). The rear end of the pin sleeve (201) is fixedly provided with multiple reinforcing ribs (202), and the front end of the product root (101) is provided with multiple slots (203) that are adapted to the reinforcing ribs (202). The multiple reinforcing ribs (202) are respectively inserted into the multiple slots (203). The outer edge of the inner ring of the pin sleeve (201) and the outer edge of the front end of the product root (101) are both machined with R angle 1 (3). The R angle 1 (3) of the outer edge of the inner ring of the pin sleeve (201) contacts the R angle 1 (3) of the outer edge of the front end of the product root (101). The outer edge of the rear end of the product root (101) is machined with R angle 2 (4).

2. The anti-breakage threaded pin assembly according to claim 1, characterized in that: Multiple reinforcing ribs (202) are arranged in a ring array on the outer wall of the pin sleeve (201), and multiple slots (203) are arranged in a ring array on the outer wall of the front end of the root (101) of the product.

3. The anti-breakage threaded pin assembly according to claim 1, characterized in that: A rubber sealing ring (5) is provided between the rear end of the pin sleeve (201) and the front end of the root of the product (101).

4. The anti-breakage threaded pin assembly according to claim 3, characterized in that: The front end of the rubber sealing ring (5) is provided with multiple protrusions (6), and the rear end of the pin sleeve (201) is provided with multiple grooves (7) that are adapted to the protrusions (6). Each protrusion (6) is provided in each groove (7).

5. The anti-breakage threaded pin assembly according to claim 1, characterized in that: The rear end of the pin sleeve (201) and the front end of the product root (101) are both provided with annular grooves (8), and the two annular grooves (8) are connected.

6. The anti-breakage threaded pin assembly according to claim 1, characterized in that: A rubber sealing ring 2 (9) is provided between the pin sleeve (201) and the product part (102), and the rubber sealing ring 2 (9) is sleeved on the outside of the product part (102).

7. The anti-breakage threaded pin assembly according to claim 6, characterized in that: The outer wall of the rubber sealing ring 2 (9) is fixed with multiple limiting blocks (10), and the inner wall of the pin sleeve (201) is provided with multiple limiting grooves (11) that are adapted to the limiting blocks (10). Each limiting block (10) is provided in each limiting groove (11).

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