Sliding pin locking device

Abstract

The utility model provides a sliding pin locking device, which belongs to the technical field of locking devices and comprises a rear cover, a fixed iron sheet, a push handle iron sheet and a front fork iron sheet, the fixed iron sheet, the push handle iron sheet and the front fork iron sheet are arranged on the rear cover, a sealing cover is mounted on one side of the rear cover, a limiting frame is mounted on the inner wall of the sealing cover, a sliding block is mounted on the inner wall of the limiting frame, and a mounting groove is formed in one end of the sliding block. And a spring and two lug plates in one group are mounted on the inner wall of one end of the mounting groove. According to the utility model, the sliding block is jacked up through the spring, joint parts on the two sides can be effectively limited and locked at the same time, it is ensured that the joints can be kept fixed when moving in a locked state, and meanwhile, the pull rope arranged on the inner side of the sliding block is matched with the pull ring, so that a user can be helped to quickly move the sliding block only by pulling the pull ring; the locking mechanism is simple and efficient, locking of the joint parts can be rapidly and flexibly achieved, and the follow-up assembly efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to locking device technical field, specifically, relate to a slide pin locking device. BACKGROUND

[0002] Baby carriage is a kind of tool car designed for baby outdoor activities, there are various models, baby carriage, baby's favorite walking traffic tool, it is also the necessary product when mom takes baby to go shopping, however, according to the growth of baby, use purpose, baby carriage can be divided into many kinds, mainly according to the standard of load, general test standard is nine to fifteen kilograms, general baby carriage can be used about four to five years.

[0003] In the prior art, in order to facilitate the storage and carrying of baby carriage, the conventional baby carriage is provided with a locking device cooperating with the movable joint of the vehicle body to help the vehicle body to be folded and stored, however, the common locking device has complex structure, cannot quickly lock and unlock the joint, the operation process is more complicated, and the subsequent assembly efficiency is affected. How to invent a slide pin locking device to solve these problems has become a problem to be solved by the technical personnel in the field. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a slide pin locking device, which aims at solving the problem of common locking device with complex structure, which cannot quickly lock and unlock the joint, and affects the subsequent assembly efficiency.

[0005] The utility model is realized as follows:

[0006] The utility model provides a slide pin locking device, which comprises a rear cover, a fixed iron sheet arranged on the rear cover, a push handle iron sheet and a front fork iron sheet, one side of the rear cover is provided with a sealing cover, the inner wall of the sealing cover is provided with a limiting frame, the inner wall of the limiting frame is provided with a sliding block;

[0007] One end of the sliding block is provided with a mounting groove, the inner wall of one end of the mounting groove is provided with a spring and two ear plates arranged in a group, and a pull rope is arranged between the two ear plates;

[0008] The fixed iron sheet is arranged on one side of the rear cover, and the fixed iron sheet is provided with a first arc-shaped groove, a first insertion hole, a second insertion hole and an insertion slot, respectively;

[0009] The push handle iron sheet is arranged on one side of the fixed iron sheet, and the push handle iron sheet is provided with a second arc-shaped groove, a second auxiliary insertion hole and a third insertion hole, respectively, one end of the push handle iron sheet is provided with a resisting block, and the outer side of one end of the push handle iron sheet is provided with a first movable joint sleeve;

[0010] The front fork iron sheet is installed on the fixed iron sheet near the handle iron sheet, a third arc-shaped slot is formed in the front fork iron sheet, a fixed sheet is installed on the outer wall of one side of the front fork iron sheet, a sliding slot and a first secondary jack are respectively formed in the fixed sheet, a second movable joint sleeve is installed on the outer side of one end of the front fork iron sheet, a front cover is installed on the other side of the front fork iron sheet, and a first bolt, a second bolt, a third bolt, a fourth bolt and a fifth bolt are respectively installed on the inner wall of the front cover.

[0011] Preferably, the first bolt, the second bolt, the third bolt, the fourth bolt and the fifth bolt are inserted from one end of the rear cover and are threadedly fixed with the inner wall of one side of the front cover.

[0012] Preferably, the first bolt passes through the second jack and a second secondary jack in sequence, and the inner wall of the second secondary jack is rotationally connected with the outer wall of the first bolt.

[0013] Preferably, the second bolt passes through a second arc-shaped slot, and the outer wall of the second bolt is slidingly connected with the inner wall of the second arc-shaped slot.

[0014] Preferably, the third bolt passes through a first arc-shaped slot, a third jack and a sliding slot in sequence, the outer wall of the third bolt is slidingly connected with the inner wall of the first arc-shaped slot and the sliding slot respectively, and the outer wall of the third bolt is rotationally connected with the inner wall of the third jack.

[0015] Preferably, the fourth bolt passes through a third arc-shaped slot, and the outer wall of the fourth bolt is slidingly connected with the inner wall of the third arc-shaped slot.

[0016] Preferably, the fifth bolt passes through the first jack and the first secondary jack in sequence, the outer wall of the fifth bolt is rotationally connected with the inner wall of the first secondary jack, and the fixed iron sheet is fixed on the rear cover through the second bolt, the fourth bolt and the fifth bolt.

[0017] Preferably, the outer wall of the sliding block is slidingly connected with the inner wall of the limiting frame, the spring is installed on the outer side of the ear plate, a fixing shaft rotationally connected with the pull rope is installed between the two ear plates, the pull rope is wound on the fixing shaft installed between the ear plates, the outer wall of the pull rope is slidingly connected with the inner wall of the sealing cover, and a pull ring is installed at the tail end of the pull rope.

[0018] The utility model discloses beneficial effects are:

[0019] The lifting of the slider by the spring can effectively limit and lock the joint parts on both sides, so that the joint movement can be kept fixed in the locked state, and the pull rope arranged in the inner side of the slider cooperates with the pull ring to help the user to quickly move the slider by pulling the pull ring, thereby unlocking the movable joint, facilitating the folding and storage of the joint, the locking mechanism is simple and efficient, and the locking of the joint part can be quickly and flexibly realized, and the efficiency of subsequent assembly is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 is a schematic diagram of a sliding pin locking device structure provided by the embodiments of the present application;

[0022] Figure 2 is a schematic diagram of a partial structure of a sliding pin locking device provided by the embodiments of the present application;

[0023] Figure 3 is an expanded diagram of a partial structure of a sliding pin locking device provided by the embodiments of the present application;

[0024] Figure 4 is a half sectional view of a partial structure of a sliding pin locking device provided by the embodiments of the present application;

[0025] Figure 5 is a sliding pin locking device provided by the embodiments of the present application Figure 4 is an enlarged view of the A area structure of the sliding pin locking device;

[0026] Figure 6 is an exploded view of a partial structure of a sliding pin locking device provided by the embodiments of the present application.

[0027] In the figure: 1, back cover; 11, sealing cover; 12, limiting frame; 2, fixed iron sheet; 21, first arc-shaped groove; 22, first jack; 23, second jack; 24, insertion slot; 3, push handle iron sheet; 31, second arc-shaped groove; 32, second sub-jack; 33, third jack; 34, abutting block; 4, front fork iron sheet; 41, fixed sheet; 42, sliding groove; 43, third arc-shaped groove; 44, first sub-jack; 5, sliding block; 51, mounting slot; 52, lug plate; 53, pull rope; 54, pull ring; 55, spring; 6, front cover; 61, first bolt; 62, second bolt; 63, third bolt; 64, fourth bolt; 65, fifth bolt; 7, first movable joint sleeve; 8, second movable joint sleeve. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Reference Figures 1-6 A sliding pin locking device, comprising a back cover 1 and fixed iron sheet 2, push handle iron sheet 3 and front fork iron sheet 4 arranged on the back cover 1, a sealing cover 11 is mounted on one side of the back cover 1, a limiting frame 12 is mounted on the inner wall of the sealing cover 11, and a sliding block 5 is mounted on the inner wall of the limiting frame 12;

[0030] One end of the sliding block 5 is provided with a mounting slot 51, a spring 55 and two lug plates 52 arranged in a group are mounted on the inner wall of one end of the mounting slot 51, and a pull rope 53 is mounted between the two lug plates 52;

[0031] The fixed iron sheet 2 is mounted on one side of the back cover 1, and a first arc-shaped groove 21, a first jack 22, a second jack 23 and an insertion slot 24 are respectively formed on the fixed iron sheet 2;

[0032] The push handle iron sheet 3 is mounted on one side of the fixed iron sheet 2, a second arc-shaped groove 31, a second sub-jack 32 and a third jack 33 are respectively formed on the push handle iron sheet 3, an abutting block 34 is mounted on one end of the push handle iron sheet 3, and a first movable joint sleeve 7 is mounted on the outer side of one end of the push handle iron sheet 3;

[0033] The front fork iron sheet 4 is installed on the fixed iron sheet 2 near the handlebar iron sheet 3, the third arc-shaped slot 43 is formed on the front fork iron sheet 4, the fixed sheet 41 is installed on the outer wall of one side of the front fork iron sheet 4, the sliding slot 42 and the first auxiliary jack 44 are respectively formed on the fixed sheet 41, the second movable joint sleeve 8 is installed on the outer side of one end of the front fork iron sheet 4, the front cover 6 is installed on the other side of the front fork iron sheet 4, and the first plug pin 61, the second plug pin 62, the third plug pin 63, the fourth plug pin 64 and the fifth plug pin 65 are respectively installed on the inner side wall of the front cover 6

[0034] Further, the first plug pin 61, the second plug pin 62, the third plug pin 63, the fourth plug pin 64 and the fifth plug pin 65 are inserted from one end of the rear cover 1 and are threadedly fixed with the inner wall of one side of the front cover 6, the first plug pin 61 passes through the second jack 23 and the second auxiliary jack 32 in turn, the inner wall of the second auxiliary jack 32 is rotationally connected with the outer wall of the first plug pin 61, the second plug pin 62 passes through the second arc-shaped slot 31, the outer wall of the second plug pin 62 is slidingly connected with the inner wall of the second arc-shaped slot 31, the third plug pin 63 passes through the first arc-shaped slot 21, the third jack 33 and the sliding slot 42 in turn, the outer wall of the third plug pin 63 is slidingly connected with the inner walls of the first arc-shaped slot 21 and the sliding slot 42 respectively, the outer wall of the third plug pin 63 is rotationally connected with the inner wall of the third jack 33, the fourth plug pin 64 passes through the third arc-shaped slot 43, the outer wall of the fourth plug pin 64 is slidingly connected with the inner wall of the third arc-shaped slot 43, and the fifth plug pin 65 passes through the first jack 22 and the first auxiliary jack 44 in turn, the outer wall of the fifth plug pin 65 is rotationally connected with the inner wall of the first auxiliary jack 44, and the fixed iron sheet 2 is fixed on the rear cover 1 through the second plug pin 62, the fourth plug pin 64 and the fifth plug pin 65.

[0035] It should be noted that the device assembly can be installed on the side of the baby carriage, and the two movable joint sleeves correspond to the front and rear wheels of the carriage body, and in the process of folding and rotating the movable joints on both sides, the handlebar iron sheet 3 is pressed downward, and at this time, it is rotated around the first plug pin 61 to force the first movable joint sleeve 7 to rotate to achieve the folding of the extended part of the joint, and in the process of pressing the handlebar iron sheet 3 downward, the second plug pin 62 is guided to slide in the first arc-shaped slot 21 to improve the accuracy and flexibility of rotation, and the third plug pin 63 in the third jack 33 rotates in the first arc-shaped slot 21, and in this process, the third plug pin 63 slides against the inner wall of the sliding slot 42, and at the same time, the front fork iron sheet 4 is forced to rotate and fold, so as to realize the folding of the second movable joint sleeve 8 and the first movable joint sleeve 7 in opposite directions, helping the baby carriage to fold the wheels for subsequent storage, and the two movable joint sleeves can be quickly folded and unfolded, improving the efficiency of assembly.

[0036] Further, the outer wall of the sliding block 5 and the inner wall of the limiting frame 12 are in sliding connection, the spring 55 is installed on the outer side of the lug plate 52, the two lug plates 52 are provided with a fixed shaft in rotating connection with the pull rope 53, the pull rope 53 is wound on the fixed shaft installed between the lug plates 52, the outer wall of the pull rope 53 and the inner wall of the sealing cover 11 are in sliding connection, and the pull rope 53 is provided with a pull ring 54 at the tail end.

[0037] It should be noted that in the unfolded state of the movable joint sleeve, the sliding block 5 passes through the limiting block 12 under the action of the spring 55, and the two side walls thereof abut against the side walls of the abutting block 34 and the fixed sheet 41, respectively, so that the joint part is locked, and loosening is avoided. When contact locking is performed, the pull ring 54 on one side of the rear cover 1 is pulled to pull out the pull rope 53, one end of the pull rope 53 pulls the sliding block 5 to extrude the spring 55 to move towards the inner wall of the sealing frame 11, until the sliding block 5 is separated from the limiting frame 12 to complete the unlocking of the joint part, and subsequent folding operation of the joint part is facilitated. The locking mechanism is simple and efficient, can quickly and flexibly realize locking of the joint part, and further improves the efficiency of subsequent assembly.

[0038] The working principle of the sliding pin locking device is as follows:

[0039] In the unfolded state of the movable joint sleeve, the sliding block 5 passes through the limiting block 12 under the action of the spring 55, and the two side walls thereof abut against the side walls of the abutting block 34 and the fixed sheet 41, respectively, so that the joint part is locked, and loosening is avoided. When contact locking is performed, the pull ring 54 on one side of the rear cover 1 is pulled to pull out the pull rope 53, one end of the pull rope 53 pulls the sliding block 5 to extrude the spring 55 to move towards the inner wall of the sealing frame 11, until the sliding block 5 is separated from the limiting frame 12 to complete the unlocking of the joint part, and subsequent folding operation of the joint part is facilitated. The locking mechanism is simple and efficient, can quickly and flexibly realize locking of the joint part, and further improves the efficiency of subsequent assembly.

[0040] The above only describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sliding pin locking device, comprising a rear cover (1) and a fixed iron sheet (2), a push handle iron sheet (3) and a front fork iron sheet (4) arranged on the rear cover (1), characterized in that: A sealing cover (11) is installed on one side of the rear cover (1), a limiting frame (12) is installed on the inner wall of the sealing cover (11), and a slider (5) is installed on the inner wall of the limiting frame (12); One end of the slider (5) is provided with a mounting groove (51), an inner wall of one end of the mounting groove (51) is provided with a spring (55) and two ear plates (52) in a group, and a pull rope (53) is provided between the two ear plates (52); The fixing iron sheet (2) is mounted on one side of the rear cover (1), and the fixing iron sheet (2) is respectively provided with a first arc-shaped groove (21), a first insertion hole (22), a second insertion hole (23) and a slot (24); The push handle iron sheet (3) is installed on one side of the fixed iron sheet (2), and a second arc groove (31), a second auxiliary jack (32), and a third jack (33) are respectively provided on the push handle iron sheet (3). A stop block (34) is installed at one end of the push handle iron sheet (3), and a first movable joint sleeve (7) is installed on the outer side of one end of the push handle iron sheet (3); The front fork iron sheet (4) is installed on one side of the fixed iron sheet (2) close to the push handle iron sheet (3), and a third arc groove (43) is provided on the front fork iron sheet (4). A fixed sheet (41) is installed on the outer wall of one side of the front fork iron sheet (4), and a sliding groove (42) and a first auxiliary socket (44) are respectively provided on the fixed sheet (41). A second movable joint sleeve (8) is installed on the outer side of one end of the front fork iron sheet (4), and a front cover (6) is installed on the other side of the front fork iron sheet (4), and a first latch (61), a second latch (62), a third latch (63), a fourth latch (64) and a fifth latch (65) are respectively installed on the inner side wall of the front cover (6).

2. A sliding pin locking device according to claim 1, characterized in that: The first latch (61), the second latch (62), the third latch (63), the fourth latch (64) and the fifth latch (65) are inserted from one end of the rear cover (1) and are screw-fixed to the inner wall of one side of the front cover (6).

3. A sliding pin locking device according to claim 2, characterized in that: The first latch (61) passes through the second insertion hole (23) and the second secondary insertion hole (32) in sequence, and the inner wall of the second secondary insertion hole (32) is rotatably connected to the outer wall of the first latch (61).

4. A sliding pin locking device according to claim 3, characterized in that: The second latch (62) passes through the second arc-shaped slot (31), and the outer wall of the second latch (62) is slidably connected to the inner wall of the second arc-shaped slot (31).

5. A sliding pin locking device according to claim 4, characterized in that: The third latch (63) passes through the first arc groove (21), the third insertion hole (33) and the slide groove (42) in sequence, and the outer wall of the third latch (63) is slidably connected to the inner wall of the first arc groove (21) and the slide groove (42) respectively, and the outer wall of the third latch (63) is rotatably connected to the inner wall of the third insertion hole (33).

6. A sliding pin locking device according to claim 5, characterized in that: The fourth latch (64) passes through the third arc-shaped slot (43), and the outer wall of the fourth latch (64) is slidably connected to the inner wall of the third arc-shaped slot (43).

7. A sliding pin locking device according to claim 6, characterized in that: The fifth latch (65) passes through the first insertion hole (22) and the first auxiliary insertion hole (44) in sequence, the outer wall of the fifth latch (65) and the inner wall of the first auxiliary insertion hole (44) are rotatably connected, and the fixed iron sheet (2) is fixed to the back cover (1) through the second latch (62), the fourth latch (64) and the fifth latch (65).

8. The sliding pin locking device according to claim 1, characterized in that: The outer wall of the slider (5) is slidably connected to the inner wall of the limit frame (12), the spring (55) is installed on the outer side of the ear plate (52), a fixed shaft rotatably connected to the pull rope (53) is installed between the two ear plates (52), the pull rope (53) is installed on the fixed shaft between the ear plates (52) by winding, the outer wall of the pull rope (53) is slidably connected to the inner wall of the sealing cover (11), and a pull ring (54) is installed at the end of the pull rope (53).

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