Self-limiting turnover device for pin shaft
By using a self-limiting flipping device with a pin mechanism, the problems of complex structure and narrow applicability of existing flipping devices and bolt-type devices are solved, achieving the effects of simplified structure, reduced cost and improved reliability.
Patent Information
- Application Number
- CN202423256504.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-29
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-29
AI Technical Summary
The existing tilting device has a complex limiting mechanism, which increases costs and installation accuracy requirements. Furthermore, the bolt method has limited applicability and is inconvenient to disassemble, making it difficult to meet the needs of vehicle use.
The self-limiting flipping mechanism is adopted to achieve self-limiting and locking, which simplifies the design of the limiting mechanism. The pin and the pressure spring of the pin mechanism are used to achieve axial positioning, avoiding vibration and abnormal noise. The sleeve and locking cover facilitate the disassembly and replacement of parts.
The structure of the flipping device has been simplified, manufacturing costs have been reduced, reliability and versatility have been improved, operation is convenient, vibration and abnormal noise have been avoided, and installation firmness and fitting accuracy have been enhanced.
Smart Images
Figure CN223685224U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile manufacturing, especially a pin shaft self-limiting turnover device. BACKGROUND
[0002] At present, in the vehicle chassis and upper-mounted system, there are turnover devices based on pin shaft installation, such as cab front protection frame, cargo box baffle, accessory cabin grid cabin door, etc. Such turnover devices are used frequently in the daily use of vehicles, which requires the turnover device to be fixed firmly and stably when not operating, and to be easy and convenient to turn over when operating.
[0003] At present, the common turnover device on the market is generally used only as a turnover support point, with axial rotation freedom. In order to ensure the overall stability of the turnover device, a separate limiting mechanism is usually designed for the system, and the limiting mechanism is generally fastened by bolts.
[0004] Although the limiting mechanism of the above-mentioned turnover device can meet the basic requirements of automobile manufacturing, there are still the following deficiencies in actual use: 1. The separately designed limiting mechanism increases the complexity of the turnover device, thereby increasing the cost; 2. The complex structure requires higher installation precision, has poor assembly ability, and low reliability; 3. The bolt limiting mechanism has a single application scene, narrow applicability, no expandability, and low universality; 4. The bolt limiting mechanism is inconvenient to disassemble and has poor repeatability. UTILITY MODEL CONTENTS
[0005] The utility model aims at overcoming the deficiencies of complex structure, difficult disassembly, and poor adaptability in the prior art, and provides a pin shaft self-limiting turnover device, which has reasonable design, simple structure, low manufacturing cost, convenient operation, and easy disassembly. It not only improves the reliability, but also improves the universality, and is suitable for promotion.
[0006] The utility model discloses a pin shaft self-limiting turnover device, including turnover pin shaft seat, the inside of turnover pin shaft seat is provided with horizontal assembly hole, and the inside of turnover pin shaft seat is provided with the turnover pin shaft of passing through the horizontal assembly hole of activity, and the top side of turnover pin shaft seat is provided with the vertical pin hole, and the bottom of vertical pin hole is linked together with horizontal assembly hole, the top side of turnover pin shaft seat is provided with the sleeve of coaxial with vertical pin hole, and the inside of sleeve is inserted with the bolt mechanism, and the top of bolt mechanism extends to the top outside of sleeve, and the bottom of bolt mechanism passes sleeve, vertical pin hole in proper order and can be inserted in the inside of the limiting insertion hole on the turnover pin shaft.
[0007] The utility model discloses further improve still, the bolt mechanism includes a limiting bolt, and the limiting bolt is arranged in the inside of sleeve, and the top of limiting bolt extends to the top outside of sleeve and is provided with the handle, and the bottom of limiting bolt passes sleeve, vertical pin hole in proper order and can be inserted in the inside of the limiting insertion hole on the turnover pin shaft.
[0008] The utility model discloses further improve still, the bolt mechanism still includes the compression spring, and the compression spring is covered in the outside of limiting bolt in the inside of sleeve, and the top of compression spring leans against the top of sleeve, and the bottom of compression spring leans against the limiting bolt at the bottom of sleeve.
[0009] The utility model discloses further improve still, the top of sleeve is the open structure and is screwed with locking cover, and the locking cover is moved and is set in the top of limiting bolt, and the top of compression spring leans against locking cover, and the bottom of compression spring leans against spring baffle outside the limiting bolt at the bottom of sleeve.
[0010] The utility model discloses further improve still, and the both sides of vertical pin hole are provided with positioning slot respectively, and the bottom of limiting bolt is provided with the round pin corresponding with positioning slot respectively, and the round pin is movably arranged in the inside of positioning slot.
[0011] The further improvement of the utility model still has that the bottom of the sleeve is provided with an observation port.
[0012] The further improvement of the utility model still has that the one side of the turnover pin shaft base is provided with a positioning pin hole communicated with the horizontal assembly hole, the inside of the positioning pin hole is provided with a positioning pin, the one end of the positioning pin hole away from the horizontal assembly hole is provided with a plug cover capable of pressing the positioning pin, the positioning spring is sleeved on the positioning pin, the one end of the positioning spring abuts against the plug cover, the other end of the positioning spring abuts against the one end of the positioning pin close to the horizontal assembly hole.
[0013] The further improvement of the utility model still has that the plug cover is fixed on the turnover pin shaft base through a screw.
[0014] The further improvement of the utility model still has that the horizontal assembly hole is located at the inside center of the turnover pin shaft base, the vertical pin hole is located at the top side center of the turnover pin shaft base, the positioning pin hole is located at the one side center of the turnover pin shaft base, and the horizontal assembly hole, the vertical pin hole and the positioning pin hole are perpendicular intersected.
[0015] The further improvement of the utility model still has that the one end of the turnover pin shaft is provided with a split pin, and the other end of the turnover pin shaft is provided with a fixed plate.
[0016] From the above technical scheme, it can be seen that the beneficial effects of the utility model are as follows: the device realizes turnover locking through the self-limiting of the bolt mechanism, does not need to separately set a locking mechanism, can simplify the arrangement of the target turnover system, the axial direction of the turnover pin shaft is positioned after being installed in place, the installation is firm and reliable, and vibration abnormal sound of the turnover pin shaft can be avoided, the centerness of the limiting bolt and the turnover pin shaft can be completely guaranteed under the action of the positioning pin, the cooperation precision is high, and the limiting accessibility is good. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme of the utility model, the drawings needed to be used in the description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the drawings without paying creative labor.
[0018] Figure 1 is a structural schematic view of the embodiment of the utility model;
[0019] Figure 2 is Figure 1 a lateral section view;
[0020] Figure 3 is Figure 1 a longitudinal section view;
[0021] Figure 4 is a structural schematic view of the turnover pin shaft seat of the embodiment of the utility model.
[0022] 1, limit bolt; 2, locking cover; 3, sleeve; 4, spring baffle; 5, compression spring; 6, round pin; 7, turnover pin shaft seat; 701, horizontal assembly hole; 702, vertical pin hole; 703, positioning groove; 704, positioning pin hole; 8, turnover pin shaft; 9, positioning pin; 10, positioning spring; 11, plug; 12, cotter pin. DETAILED DESCRIPTION
[0023] In order to make the purpose, features, advantages of the utility model more obvious and easy to understand, the technical scheme in the utility model will be described clearly and completely below by combining the drawings in the embodiment, obviously, the following described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. Based on the embodiment in the patent, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of the patent protection.
[0024] Now refer to the accompanying Figures 1-4 , combine the specific embodiment, it is explained as follows: the utility model discloses a pin shaft self-limiting turnover device, including turnover pin shaft seat 7, the inside of turnover pin shaft seat 7 is set up horizontal assembly hole 701, and turnover pin shaft seat 7 is set up through the turnover pin shaft 8 of the through activity of horizontal assembly hole 701, and the top side of turnover pin shaft seat 7 is set up vertical pin hole 702, and the bottom end of vertical pin hole 702 is communicated with horizontal assembly hole 701;The top side of turnover pin shaft seat 7 is provided with the sleeve 3 of the same axis of vertical pin hole 702, and the inside of sleeve 3 is inserted with the bolt mechanism, and the limit insertion hole of bolt mechanism is set up on the turnover pin shaft 8, and the top end of bolt mechanism extends to the top end outside of sleeve 3, and the bottom end of bolt mechanism can be inserted in the limit insertion hole on the turnover pin shaft 8 after passing through sleeve 3, vertical pin hole 702 in proper order.The device realizes turnover locking by bolt mechanism self-limiting, does not need to set locking mechanism again, can simplify the arrangement of target turnover system;The axial synchronous of turnover pin shaft 8 is positioned after installing in place, and installation is firm and reliable, and can avoid pin shaft vibration abnormal sound.
[0025] Specifically, the latch mechanism includes a limiting latch 1 and a compression spring 5, the limiting latch 1 is arranged inside the sleeve 3, the top end of the limiting latch 1 extends to the outside of the top end of the sleeve 3 and is provided with a handle, the bottom end of the limiting latch 1 passes through the sleeve 3 and the vertical pin hole 702 in sequence and can be inserted into the limiting hole on the flip pin shaft 8; the compression spring 5 is sleeved outside the limiting latch 1 inside the sleeve 3, the top end of the compression spring 5 abuts against the top end of the sleeve 3, and the bottom end of the compression spring 5 abuts against the limiting latch 1 at the bottom end of the sleeve 3. The overall structure of the above-mentioned latch mechanism is simple, which is convenient for material selection and assembly and can reduce manufacturing cost; under the action of the compression spring 5, the limiting latch 1 and the flip pin shaft 8 can be kept in the inserted state, thereby making the latch mechanism fixed firmly.
[0026] Specifically, the top end of the sleeve 3 is an open structure and is screwed with a locking cover 2, the locking cover 2 is movably arranged on the top of the limiting latch 1, and the top end of the compression spring 5 abuts against the locking cover 2; the spring baffle 4 is arranged outside the limiting latch 1 at the bottom end of the sleeve 3, and the bottom end of the compression spring 5 abuts against the spring baffle 4. The locking cover 2 and the sleeve 3 are detachably connected, which further reduces the assembly difficulty of the latch mechanism and is convenient for replacing the parts inside the sleeve 3, and has high practicability.
[0027] Specifically, the flip pin shaft seat 7 is provided with a positioning pin hole 704 communicating with the horizontal assembly hole 701 on one side, the positioning pin hole 704 is movably provided with a positioning pin 9, a plug cover 11 capable of pressing the positioning pin 9 is arranged at the end of the positioning pin hole 704 away from the horizontal assembly hole 701, the plug cover 11 is fixed on the flip pin shaft seat 7 through a screw, a positioning spring 10 is sleeved on the positioning pin 9, one end of the positioning spring 10 abuts against the plug cover 11, and the other end of the positioning spring 10 abuts against the end of the positioning pin 9 close to the horizontal assembly hole 701. Under the action of the positioning pin 9, the centration of the limiting latch 1 and the flip pin shaft 8 can be completely guaranteed, the matching precision is high, and the limiting accessibility is good. Meanwhile, the plug cover 11 and the flip pin shaft seat 7 are detachably connected, which is convenient for assembly and replacement of the parts inside the positioning pin hole 704.
[0028] Specifically, the horizontal assembly hole 701 is located at the inside center of the flip pin shaft seat 7, the vertical pin hole 702 is located at the top center of the flip pin shaft seat 7, and the positioning pin hole 704 is located at the center of one side of the flip pin shaft seat 7, and the axes of the horizontal assembly hole 701, the vertical pin hole 702 and the positioning pin hole 704 are perpendicular and intersected. The arrangement forms of the horizontal assembly hole 701, the vertical pin hole 702 and the positioning pin hole 704 are more reasonable and suitable for industrial production.
[0029] The utility model discloses a use principle: the turnover pin shaft seat 7 of this device is fixedly connected with the installation base body through bolt, can not move, and the turnover pin shaft 8 of this device is assembled with the turnover piece, and the synchronous movement is fixed firmly.
[0030] In one embodiment, the two sides of the vertical pin hole 702 are provided with positioning grooves 703, and the bottom of the limiting pin 1 is provided with round pins 6 corresponding to the positioning grooves 703, which are movably arranged in the positioning grooves 703. The design of the round pins 6 and the positioning grooves 703 can limit the movement track of the limiting pin 1, prevent the limiting pin 1 from rotating, and facilitate the staff to pull out and insert the limiting pin 1.
[0031] In one embodiment, the bottom of the sleeve 3 is provided with an observation port. Through the design of the observation port, the staff can easily confirm the position of the limiting pin 1.
[0032] In one embodiment, one end of the turnover pin shaft 8 is provided with a split pin 12, and the other end of the turnover pin shaft 8 is provided with a fixed plate. Through the design of the split pin 12, the safety redundancy of the installation of the turnover pin shaft 8 can be guaranteed.
[0033] In the specification, each embodiment is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other.
[0034] In the specification, the terms "upper", "lower", "outer side", "inner side" and the like are used to distinguish the relative position, and do not have to be given a nature. It should be understood that the data used in this way can be exchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.
[0035] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A self-limiting turnover device for a pin shaft, comprising a turnover pin shaft seat (7), characterized in that, The inside of the turnover pin shaft seat (7) is provided with a horizontal assembly hole (701), the turnover pin shaft seat (7) is movably provided with a through turnover pin shaft (8) through the horizontal assembly hole (701), the top side of the turnover pin shaft seat (7) is provided with a vertical pin hole (702) which is in communication with the horizontal assembly hole (701) at the bottom end, and the top side of the turnover pin shaft seat (7) is provided with a sleeve (3) which is coaxial with the vertical pin hole (702), the inside of the sleeve (3) is provided with a latch mechanism, the turnover pin shaft (8) is provided with a limiting insertion hole corresponding to the latch mechanism, and the top end of the latch mechanism extends to the outside of the top end of the sleeve (3), and the bottom end of the latch mechanism sequentially passes through the sleeve (3) and the vertical pin hole (702) and can be inserted into the limiting insertion hole on the turnover pin shaft (8).
2. A pin shaft self-limiting turnover device according to claim 1, characterized in that, The latch mechanism comprises a limiting latch (1), the limiting latch (1) is arranged in the sleeve (3), and the top end of the limiting latch (1) extends to the outside of the top end of the sleeve (3) and is provided with a handle, and the bottom end of the limiting latch (1) sequentially passes out of the sleeve (3) and the vertical pin hole (702) and can be inserted into the limiting insertion hole on the turnover pin shaft (8).
3. A pin shaft self-limiting turnover device according to claim 2, characterized in that, The latch mechanism further comprises a compression spring (5), the compression spring (5) is arranged outside the limiting latch (1) in the sleeve (3), the top end of the compression spring (5) abuts against the top end of the sleeve (3), and the bottom end of the compression spring (5) abuts against the limiting latch (1) at the bottom end of the sleeve (3).
4. A pin shaft self-limiting turnover device according to claim 1 or 3, characterized in that, The top end of the sleeve (3) is an open structure and is screwed with a locking cover (2), the locking cover (2) movably passes through the top of the limiting latch (1), and the top end of the compression spring (5) abuts against the locking cover (2); the outside of the limiting latch (1) at the bottom end of the sleeve (3) is provided with a spring baffle (4), and the bottom end of the compression spring (5) abuts against the spring baffle (4).
5. A pin shaft self-limiting turnover device according to claim 4, characterized in that, The both sides of the vertical pin hole (702) are provided with positioning grooves (703), the both sides of the bottom of the limiting latch (1) are provided with round pins (6) corresponding to the positioning grooves (703), and the round pins (6) are movably arranged in the inside of the positioning grooves (703).
6. A pin shaft self-limiting turnover device according to claim 5, characterized in that, The bottom of the sleeve (3) is provided with an observation hole.
7. A pin shaft self-limiting turnover device according to claim 6, characterized in that, One side of the turnover pin shaft seat (7) is provided with a positioning pin hole (704) in communication with the horizontal assembly hole (701), the inside of the positioning pin hole (704) is provided with a positioning pin (9), one end of the positioning pin hole (704) is provided with a plug cover (11) capable of pressing the positioning pin (9), the positioning pin (9) is provided with a positioning spring (10), one end of the positioning spring (10) abuts against the plug cover (11), and the other end of the positioning spring (10) abuts against the positioning pin (9) close to the horizontal assembly hole (701).
8. The pin shaft self-limiting turnover device according to claim 7, wherein The plug cover (11) is fixed on the turnover pin shaft seat (7) by a screw.
9. A pin shaft self-limiting turnover device according to claim 8, characterized in that, The horizontal assembly hole (701) is located at the inner center of the turnover pin shaft seat (7), the vertical pin hole (702) is located at the top center of the turnover pin shaft seat (7), the positioning pin hole (704) is located at the side center of the turnover pin shaft seat (7), and the axes of the horizontal assembly hole (701), the vertical pin hole (702) and the positioning pin hole (704) are perpendicular to each other.
10. A pin shaft self-limiting turnover device according to claim 9, characterized in that, One end of the turnover pin shaft (8) is provided with an open pin (12), and the other end of the turnover pin shaft (8) is provided with a fixing plate.