CN218912568U - Anti-loosening locking device for carriage door - Google Patents

Anti-loosening locking device for carriage door Download PDF

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Publication number
CN218912568U
CN218912568U CN202222998243.1U CN202222998243U CN218912568U CN 218912568 U CN218912568 U CN 218912568U CN 202222998243 U CN202222998243 U CN 202222998243U CN 218912568 U CN218912568 U CN 218912568U
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China
Prior art keywords
inserted link
pin
door
carriage
sleeve
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CN202222998243.1U
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Chinese (zh)
Inventor
侯永
冯俊皓
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Chongqing Zongshen Vehicles Co ltd
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Chongqing Zongshen Vehicles Co ltd
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Priority to CN202222998243.1U priority Critical patent/CN218912568U/en
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Abstract

The utility model provides an anti-loosening locking device for a carriage door, which is arranged on a carriage, wherein the carriage door is provided with a carriage frame and a carriage door, and comprises a base, a inserted link, a spring, a retainer ring, a sleeve, a stop pin and a first limit pin; the sleeve is fixed on the carriage frame; the base is fixed on the carriage door; the base is provided with a through hole for accommodating the inserted rod to pass through; the first limiting pins are provided with two limiting pins which are respectively and vertically fixed on the bases at the upper side and the lower side of the inserted link; according to the utility model, after the inserted link is inserted into the sleeve, the stop pin is limited through the first limiting pin, so that the situation that the inserted link is loosened from the sleeve due to vibration problem can be prevented, and the compartment door is more fixed and reliable to close; the blocking pin is blocked by the first limiting pin, so that the inserted link can be kept in a state of being inserted into the sleeve, and the normally closed state of the compartment door is realized; the stop pin is blocked by the second limiting pin, so that the inserted link can be kept in a state of being not contacted with the sleeve, and normally open of the compartment door is realized.

Description

Anti-loosening locking device for carriage door
Technical Field
The utility model relates to the technical field of locking devices, in particular to an anti-loosening locking device for a carriage door.
Background
In order to facilitate the opening of the carriage door, the left door, the right door and the rear door of the carriage are generally connected by adopting a snap-fit connection fixing structure. The traditional hasp structure is generally that the hasp is directly welded on the outer side of a car door, the movable car door is attached to the fixed car front door through the catch, and the catch is limited through the hasp, so that the effect of fixing the car door is achieved. But traditional hasp structure is vibrating and is received the collision after, appears the hasp pine easily and takes off the phenomenon, and fixed reliability is poor, and traditional hasp structure is because of the welding in the door outside, appears scraping the problem easily, has certain potential safety hazard.
The utility model discloses a novel carriage structure of electric tricycle, including bottom of the case (1), a preceding riser (5) and one with this preceding riser (5) position relative back door (4) of being fixed in bottom of the case (1) one end, still include a left door (2), this left door (2) comprise a left fixed door (22) and a left dodge gate (21), a vertical limit of this left fixed door (22) is fixed in on preceding riser (5), its base is fixed in on bottom of the case (1), the base of left dodge gate (21) articulates on bottom of the case (1), the topside of left dodge gate (21) is close to the one end of left fixed door (22) and is equipped with the left hasp with left fixed door (22) complex, still includes a right door that sets up with left door symmetry. The carriage door of the tricycle is fixed through the hasp structure, and when the tricycle runs on a bumpy road section, the problem that the hasp is vibrated to be loosened exists, so that driving safety is affected.
Disclosure of Invention
Aiming at the technical defects, the utility model aims to provide an anti-loosening locking device for a carriage door, so as to solve the problem that the carriage door is accidentally opened due to loosening of the traditional hasp structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the anti-loosening locking device for the carriage door is arranged on a carriage, and the carriage door is provided with a carriage frame and the carriage door and comprises a base, an inserted link, a spring, a retainer ring, a sleeve, a stop pin and a first limiting pin; the sleeve is fixed on the carriage frame; the base is fixed on the carriage door; the base is provided with a through hole for accommodating the insertion rod to pass through, the front end of the insertion rod movably passes through the through hole and extends towards the sleeve, the axis of the insertion rod is coincident with the axis of the sleeve, and the inner diameter of the sleeve is larger than the outer diameter of the insertion rod; the spring is arranged inside the base and sleeved on the inserted link; the retainer ring is sleeved on the inserted link and is in threaded connection with the inserted link; one end of the spring is abutted against one side, far away from the front end of the inserted link, of the retainer ring, and the other end of the spring is abutted against the base; the stop pin penetrates through the inserted link, and the axis of the stop pin is perpendicular to the axis of the inserted link; the stop pin is arranged on the inserted link at one side of the retainer ring away from the spring; the first limiting pins are arranged and are respectively and vertically fixed on the bases at the upper side and the lower side of the inserted link; the length of the stop pin is longer than the linear distance between the two first limiting pins; the outer diameter of the retainer ring is smaller than the linear distance between the two first limiting pins.
Preferably, the two sides of the base are integrally and vertically provided with the connecting lug plates; the through holes are arranged on the connecting lug plates; the stop pin, the check ring and the first limiting pin are respectively arranged between the two connecting lug plates.
Preferably, the device further comprises a second limiting pin; the two second limiting pins are arranged and respectively and vertically fixed on the bases at the upper side and the lower side of the inserted link; the second limiting pin is arranged on one side, away from the check ring, of the first limiting pin; a space is arranged between the first limiting pin and the second limiting pin; the linear distance between the two second limiting pins is equal to the linear distance between the two first limiting pins.
Preferably, a pad disc is rotatably arranged on the connecting lug plate far away from the check ring; the pad disc is provided with a round hole for accommodating the inserted link to pass through; one end of the spring, which is far away from the check ring, is abutted on the pad disc.
Preferably, the rear end of the inserted link is integrally provided with an extension handle; the extension handle is arranged perpendicular to the inserted link.
Preferably, the cover plate is further included; the cover plate is fixed on the carriage door, and a cavity for accommodating the base is arranged in the cover plate.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, after the inserted link is inserted into the sleeve, the stop pin is limited by the first limiting pin, so that the situation that the inserted link is loosened from the sleeve due to vibration problem can be prevented, and the compartment door is more fixed and reliable to close.
2. According to the utility model, the stop pin is blocked by the first limiting pin, so that the inserted link can be kept in a state of being inserted into the sleeve, and the normally closed state of the compartment door is realized; the stop pin is blocked by the second limiting pin, so that the inserted link can be kept in a state of being not contacted with the sleeve, and normally open of the compartment door is realized.
Drawings
FIG. 1 is a schematic view of the present utility model in use;
FIG. 2 is a schematic view of the structure of FIG. 1 with a cover plate installed;
FIG. 3 is a schematic diagram of a locked state structure of the present utility model;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
fig. 5 is a schematic view of the structure of the open state of the present utility model.
Wherein:
1. a carriage frame; 2. a base; 21. a spring; 22. connecting an ear plate; 23. a saucer; 24. a retainer ring; 25. a stop pin; 26. a first limit pin; 27. a second limiting pin; 3. a compartment door; 4. a rod; 5. a cover plate; 6. an extension handle; 7. a sleeve.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1, 3 and 4, an anti-loosening locking device for a carriage door is arranged on a carriage, and the carriage door 3 is provided with a carriage frame 1 and the carriage door 3 and comprises a base 2, an inserted link 4, a spring 21, a check ring 24, a sleeve 7, a stop pin 25 and a first limiting pin 26; the carriage frame 1 is provided with a hole for accommodating the sleeve 7, and the sleeve 7 is fixed in the hole of the carriage frame 1; the base 2 is fixed at the position of the carriage door 3 close to the sleeve 7; the base 2 is provided with a through hole for accommodating the insertion rod 4 to pass through, the front end of the insertion rod 4 movably passes through the through hole and extends towards the sleeve 7, the axis of the insertion rod 4 is coincident with the axis of the sleeve 7, the inner diameter of the sleeve 7 is larger than the outer diameter of the insertion rod 4, the insertion rod 4 can be pulled to enable the front end of the insertion rod 4 to be inserted into the sleeve 7, locking of the compartment door 3 is completed, or the insertion rod 4 is pulled out of the sleeve 7, and the compartment door 3 can be opened; the spring 21 is arranged inside the base 2 and sleeved on the inserted link 4; the retainer ring 24 is sleeved on the inserted link 4 and is in threaded connection with the inserted link 4; one end of the spring 21 is abutted against one side of the retainer ring 24 far away from the front end of the inserted link 4, the other end is abutted against the base 2, the retainer ring 24 is rotated, the position of the retainer ring 24 on the inserted link 4 is adjusted through the threaded cooperation of the retainer ring 24 and the inserted link 4, and then the extension amount of the front end of the inserted link 4 is adjusted through the extrusion of the spring 21 by the retainer ring 24, so that the problem of elasticity weakening of the spring 21 is solved; the stop pin 25 penetrates through the inserted link 4, and the axis of the stop pin 25 is perpendicular to the axis of the inserted link 4; the stop pin 25 is arranged on the inserted link 4 on the side of the retainer ring 24 away from the spring 21; when the inserted link 4 rotates along the axis, the stop pin 25 can be driven to rotate together; the first limiting pins 26 are arranged and are respectively and vertically fixed on the base 2 at the upper side and the lower side of the inserted link 4; the length of the stop pin 25 is greater than the linear distance between the two first stop pins 26; the external diameter of retaining ring 24 is less than the straight line distance between two first spacer pins 26, when rotating inserted bar 4 makes spacer pin 25 be in vertical state, spacer pin 25 perpendicular to two first spacer pins 26 set up, in this state, when spacer pin 25 is located one side that first spacer pin 26 is close to sleeve pipe 7, the front end of inserted bar 4 inserts in sleeve pipe 7, simultaneously spacer pin 25 receives the barrier of first spacer pin 26, make the front end of inserted bar 4 unable to pull out from sleeve pipe 7, realize the anticreep locking of inserted bar 4, rotate inserted bar 4 and drive spacer pin 25 synchronous rotation, when messenger's spacer pin 25 can pass through from between two first spacer pins 26, pull out inserted bar 4 from sleeve pipe 7, can open railway carriage or compartment door 3.
Furthermore, the two sides of the base 2 are integrally and vertically provided with a connecting lug plate 22; the through holes are provided on the connection lugs 22; the stop pin 25, the retainer ring 24 and the first limiting pin 26 are respectively arranged between the two connecting lug plates 22, and the inserting rod 4 is positioned through the connecting lug plates 22 so that the inserting rod 4 moves along the axial direction of the through hole; at the same time, the spring 21 pushes the retainer ring 24 toward the sleeve 7 by the interaction force of the connection lug 22 and the spring 21, so that the front end of the plunger 4 is kept in a state of being inserted into the sleeve 7.
Further, a second limiting pin 27 is also included; the two second limiting pins 27 are arranged and respectively and vertically fixed on the base 2 at the upper side and the lower side of the inserted link 4; the second limiting pin 27 is arranged on one side of the first limiting pin 26 away from the retainer ring 24; a space is arranged between the first limiting pin 26 and the second limiting pin 27; the linear distance between the two second limiting pins 27 is equal to the linear distance between the two first limiting pins 26; pulling the inserted link 4 drives the stop pin 25 to move along the axial direction of the inserted link 4, so that the stop pin 25 moves to a position where the second limiting pin 27 is far away from one side of the retainer ring 24, and rotating the inserted link 4 makes the stop pin 25 vertically arranged between the two second limiting pins 27, the stop pin 25 is propped against by the second limiting pins 27, the front end of the inserted link 4 completely extends out of the sleeve 7, the anti-loosening locking device is in an open state, and as shown in fig. 5, the compartment door 3 is in a free open state.
Further, a bearing is arranged on the connecting lug plate 22 far away from the retainer ring 24, and a pad disc 23 is rotatably arranged through the bearing; the pad disc 23 is provided with a round hole for accommodating the insertion rod 4 to pass through; one end of the spring 21, which is far away from the retainer ring 24, is abutted against the pad 23; one end of the spring 21 is abutted against the pad disc 23, the other end is abutted against the retainer ring 24, when the inserted link 4 rotates, the retainer ring 24 synchronously rotates along with the inserted link 4, meanwhile, the pad disc 23 abutted against the spring 21 synchronously rotates along with the inserted link 4, so that the spring 21 and the connecting lug plate 22 are prevented from rotating together along with the inserted link 4 due to large friction force when the spring 21 rotates by hands, the retainer ring 24 is static relative to the spring 21 due to friction force of the spring 21 abutting against the pad disc 23, the retainer ring 24 rotates relative to the inserted link 4, the axial position of the retainer ring 24 on the inserted link 4 changes, the pretightening force applied to the spring 21 changes, and the extending length of the front end of the inserted link 4 changes.
Further, an extension handle 6 is integrally arranged at the rear end of the inserted link 4; the extension handle 6 is perpendicular to the inserted link 4 and is used for being held by hand, and the inserted link 4 can be rotated more easily.
Further, as shown in fig. 2, the cover plate 5 is further included; the cover plate 5 is fixed on the carriage door 3, and a cavity for accommodating the base 2 is arranged in the cover plate 5; the base 2, the spring 21, the retainer ring 24, the stop pin 25, the first stop pin 26 and the second stop pin 27 are hidden, so that the attractiveness is improved, and the scraping problem is prevented when the parts are exposed.
When the carriage door is used, the extension handle 6 is held to drive the inserted link 4 to rotate, the stop pin 25 synchronously rotates along with the inserted link 4 to a state that the stop pin 25 can pass through between the two first limit pins 26 and the second limit pins 27, the extension handle 6 is pulled to draw the inserted link 4 out of the sleeve 7, and the carriage door 3 can be freely opened; the inserted link 4 is inserted into the sleeve 7, the rotating extension handle 6 drives the inserted link 4 and the stop pin 25 to synchronously rotate until the stop pin 25 is in a vertical state, and at the moment, the upper end and the lower end of the stop pin 25 are respectively blocked by the two first limiting pins 26, so that the inserted link 4 cannot be pulled out from the sleeve 7, and the locking and the anti-loosening of the compartment door 3 are realized.

Claims (6)

1. The anti-loosening locking device for the carriage door is arranged on a carriage, and the carriage door (3) is provided with a carriage frame (1) and the carriage door (3), and is characterized by comprising a base (2), an inserting rod (4), a spring (21), a retainer ring (24), a sleeve (7), a stop pin (25) and a first limiting pin (26); the sleeve (7) is fixed on the carriage frame (1); the base (2) is fixed on the carriage door (3); the base (2) is provided with a through hole for accommodating the insertion rod (4) to pass through, the front end of the insertion rod (4) movably passes through the through hole and extends towards the sleeve (7), the axis of the insertion rod (4) is coincident with the axis of the sleeve (7), and the inner diameter of the sleeve (7) is larger than the outer diameter of the insertion rod (4); the spring (21) is arranged inside the base (2) and sleeved on the inserted link (4); the retainer ring (24) is sleeved on the inserted link (4) and is in threaded connection with the inserted link (4); one end of the spring (21) is abutted against one side of the retainer ring (24) away from the front end of the inserted link (4), and the other end is abutted against the base (2); the stop pin (25) penetrates through the inserted link (4), and the axis of the stop pin (25) is perpendicular to the axis of the inserted link (4); the stop pin (25) is arranged on the inserted link (4) at one side of the retainer ring (24) far away from the spring (21); the two first limiting pins (26) are arranged and are respectively and vertically fixed on the base (2) at the upper side and the lower side of the inserted link (4); the length of the stop pin (25) is longer than the linear distance between the two first limiting pins (26); the outer diameter of the retainer ring (24) is smaller than the linear distance between the two first limiting pins (26).
2. The anti-loosening locking device for the compartment door according to claim 1, wherein the two sides of the base (2) are integrally and vertically provided with a connecting lug plate (22); the through holes are arranged on the connecting lug plates (22); the stop pin (25), the retainer ring (24) and the first limiting pin (26) are respectively arranged between the two connecting lug plates (22).
3. The anti-loosening locking device for a car door as claimed in claim 1, further comprising a second stopper pin (27); the two second limiting pins (27) are arranged and are respectively and vertically fixed on the bases (2) on the upper side and the lower side of the inserted link (4); the second limiting pin (27) is arranged on one side, away from the check ring (24), of the first limiting pin (26); a space is arranged between the first limiting pin (26) and the second limiting pin (27); the linear distance between the two second limiting pins (27) is equal to the linear distance between the two first limiting pins (26).
4. The anti-loosening locking device for a car door as claimed in claim 2, characterized in that a pad (23) is rotatably provided on the connection lug plate (22) remote from the retainer ring (24); a round hole for accommodating the insertion rod (4) to pass through is formed in the pad (23); one end of the spring (21) far away from the retainer ring (24) is abutted against the pad disc (23).
5. The anti-loosening locking device for a car door as claimed in any one of claims 1 to 4, wherein the rear end of the insert rod (4) is integrally provided with an extension handle (6); the extension handle (6) is perpendicular to the inserted link (4).
6. The anti-loosening locking device for a car door as claimed in claim 5, further comprising a cover plate (5); the cover plate (5) is fixed on the carriage door (3), and a cavity for accommodating the base (2) is arranged in the cover plate (5).
CN202222998243.1U 2022-11-10 2022-11-10 Anti-loosening locking device for carriage door Active CN218912568U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222998243.1U CN218912568U (en) 2022-11-10 2022-11-10 Anti-loosening locking device for carriage door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222998243.1U CN218912568U (en) 2022-11-10 2022-11-10 Anti-loosening locking device for carriage door

Publications (1)

Publication Number Publication Date
CN218912568U true CN218912568U (en) 2023-04-25

Family

ID=86011259

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222998243.1U Active CN218912568U (en) 2022-11-10 2022-11-10 Anti-loosening locking device for carriage door

Country Status (1)

Country Link
CN (1) CN218912568U (en)

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