CN216921795U - Rotating arm structure with self-locking function and opening and closing mechanism - Google Patents
Rotating arm structure with self-locking function and opening and closing mechanism Download PDFInfo
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- CN216921795U CN216921795U CN202123220591.8U CN202123220591U CN216921795U CN 216921795 U CN216921795 U CN 216921795U CN 202123220591 U CN202123220591 U CN 202123220591U CN 216921795 U CN216921795 U CN 216921795U
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- movable rod
- lock seat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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Abstract
The utility model discloses a rotating arm structure with a self-locking function and an opening and closing mechanism, which comprise a rotating arm, wherein a through groove is formed in the rotating arm, a lock seat which is not connected with the inner wall of the through groove and is attached to the inner wall of the through groove is formed in the through groove, and a sliding groove for a locking device to slide is formed in the lock seat. The outer wall both sides of rocking arm are equipped with rocking arm stop device, stop device has the compressible stroke of buffering, and stop device passes through the through-hole on the rocking arm and is connected with the lock seat. According to the utility model, the lock seat is arranged in the through groove of the rotating arm, the sliding groove of the lock seat is connected with the locking mechanism, and the impact force generated when the locking device passes through a dead point is counteracted by the elastic compression of the rotating arm limiting device on the rotating arm through the gap between the lock seat and the rotating arm, so that the cabin door is smoother when being opened and closed, and the problem of loud noise caused by the impact force generated when the locking device realizes the opening and closing of the cabin door is solved.
Description
Technical Field
The utility model relates to the technical field of train end connection of rail transit motor train units, in particular to a rotating arm structure with a self-locking function and an opening and closing mechanism.
Background
In order to realize reconnection on a train or return rescue of a high-speed motor train unit, both ends of the head of the train unit are generally provided with opening and closing mechanisms at the same time. The opening and closing mechanism is used as an important component of a head type of the motor train unit, and is mainly used for reducing the running wind resistance of the train and reducing the energy consumption loss when the train runs at a high speed. Meanwhile, the opening and closing mechanism can prevent rainwater and foreign matters from entering the hood when being closed, so that the front end equipment of the vehicle body is protected. When the train needs to be subjected to reconnection marshalling or traction rescue, the opening and closing device is opened to expose the train hook, so that the train is connected. In addition, the opening and closing mechanism can improve the integrity of the appearance of the train, so that the train is more attractive.
At present, a common front end opening and closing structure generally comprises a pushing device and a locking device. In order to achieve opening and closing of the opening and closing mechanism and to achieve reliable locking, the opening and closing mechanism is usually completed by a plurality of independent locking devices. If the CN201310493600.1 switching mechanism with the self-locking function is disclosed, the switching mechanism comprises a bottom plate, a fairing supporting arm and a power source pushing cylinder, wherein a rotating shaft is arranged on the bottom plate, one end of the fairing supporting arm is sleeved on the rotating shaft, and the other end of the fairing supporting arm is connected with the fairing through a fairing mounting seat; the fairing is provided with a closed-state limiting stop, and an open-state limiting stop is arranged between the fairing supporting arm and the fairing mounting seat; a locking device is arranged between the fairing supporting arm and the power source pushing cylinder, one end of the locking device can move in a sliding groove of the fairing supporting arm, and the other end of the locking device is installed on the power source pushing cylinder. The utility model has simple and reliable structure, low cost, high stability and convenient maintenance, adopts a power source to realize the opening and closing of the opening and closing mechanism, generates mechanical self-locking in a 'dead point' mode, locks the opening and closing mechanism, and keeps the opening and closing mechanism in a set state without additionally increasing power. However, in this structure, when the locking device is rotated left and right in the sliding groove of the support arm, the impact on the guide groove of the lock base generated when the locking device passes over the dead point is too large, which not only causes a great noise, but also easily causes structural damage, and increases the maintenance cost of the vehicle.
SUMMERY OF THE UTILITY MODEL
The utility model provides a rotating arm structure with a self-locking function and an opening and closing mechanism comprising the rotating arm structure, aiming at the defects that when a cabin door at the head of the existing high-speed motor train unit is opened and closed, and a locking mechanism passes through a dead point, the impact is too large, and the sound is very loud.
The purpose of the utility model is realized by the following technical scheme:
the utility model provides a take self-locking function's rocking arm structure, includes the rocking arm, be equipped with the logical groove that runs through in the rocking arm, lead to the inslot be equipped with lead to the incomplete lock seat that links to each other and laminate of inslot wall, the lock seat has certain rotatable space in leading to the inslot. A sliding groove used for sliding the locking device is arranged in the lock seat. The outer wall both sides of rocking arm are equipped with rocking arm stop device, stop device has the compressible stroke of buffering, can cushion the lock seat rotation in logical groove. The utility model reduces the impact on the guide groove of the lock base when the locking mechanism passes through the dead point by arranging the lock base in the rotating arm and buffering by the rotating arm limiting device, and reduces the abnormal sound caused by the impact.
Furthermore, rocking arm stop device includes movable rod, elastic buffer and movable rod stopper, the movable rod stopper is fixed in the rocking arm side, and in movable rod stopper that contains elastic buffer was located to movable rod one end, the other end passed the through-hole on the rocking arm and the outer wall contact of lock seat. After the tumbler begins to reach "dead point", make the lock seat rotate about logical inslot of tumbler, the lock seat compresses the elastic buffer spare through the movable rod, and the elastic buffer spare strikes the atress compression, avoids the sound that too big impact caused through the extrusion of elastic buffer spare.
Furthermore, the elastic buffer part comprises a metal elastic part such as a disc spring, a compression spring and the like or a cushion pad made of high-elasticity materials, so that elastic buffering is provided, and the sound of opening the cabin door is reduced.
Further, the elastic buffer cushion is a rubber buffer cushion or a combination of rubber buffer cushions.
Furthermore, the contact part of the lock seat and the movable rod is provided with a groove, so that the movable rod and the lock seat can conveniently slide in a contact manner.
Furthermore, the tumbler stop device is arranged on the contact surface of the stop screw rod and the tumbler.
Furthermore, a certain gap is formed between the inner wall of the rotating arm through groove and the outer wall of the lock seat, so that the cabin door is smoother when being opened and closed.
Furthermore, the lock seat and the rotating arm are of an integrated structure, one end of the lock seat is fixed on the inner wall of the through groove of the rotating arm, and the lock seat can rotate in the gap between the rotating arm and the lock seat under strong impact force.
Furthermore, lock seat and rocking arm are split type structure, and the one end of lock seat is equipped with the mount pad, with rocking arm and coaxial arrangement on the rotation axis, the lock seat rotates along with rotation axis and rocking arm simultaneously, can enough guarantee that the lock seat can be at the clearance internal rotation of rocking arm and lock seat under strong impact force, can be convenient for the change and the maintenance of lock seat again.
A switching mechanism with a self-locking function comprises the rotating arm structure with the self-locking function.
Furthermore, the opening and closing mechanism with the self-locking function comprises a cabin door, a rotating arm structure, a rotating shaft, a limiting screw rod, a locking device and a cylinder, one end of the rotating arm structure is connected with the cabin door, the other end of the rotating arm structure is fixed on the rotating shaft of the automobile body, one end of the locking device slides in a sliding groove of a locking seat of the rotating arm structure, the other end of the locking device is installed in a base of the automobile body, the locking device can rotate to drive a lower rotating arm of the cabin door to rotate left and right through manual or automatic action of the cylinder, and the rotating arm rotates around a rotating arm shaft to realize opening and closing of the cabin door. The limiting screw rods of the door closing state limiting stop and the door opening state limiting stop in the plane rotating by the rotating arm structure and the lower rotating arm of the fairing rotate to form a mechanism dead point, the locking device crosses over the mechanical dead point and is limited by the machine during locking, and the locking device reversely crosses over the mechanical dead point during unlocking.
Compared with the prior art, the beneficial effects are:
the utility model is provided with a lock seat in the through groove of the rotating arm, and utilizes the sliding groove of the lock seat to be connected with the locking mechanism, so that the rotating arm is indirectly connected with the locking mechanism, and the impact force when the locking device passes a dead point is adjusted by the clearance between the lock seat and the rotating arm and the elastic compression of the rotating arm limiting device on the rotating arm, so that the cabin door is smoother when being opened and closed. The utility model has simple structure, convenient use and convenient maintenance, not only can realize the self-locking function of the opening and closing mechanism, but also avoids the problem of loud sound of the locking device in the process of realizing the opening and closing of the cabin door.
Drawings
FIG. 1 is a schematic view of a swivel arm construction;
FIG. 2 is a schematic view of the locking mechanism of the opening and closing mechanism;
FIG. 3 is a top view of the locking device of the opening and closing mechanism;
FIG. 4 is a cross-sectional view of the locking device of the opening and closing mechanism;
FIG. 5 is a schematic view of a lock seat structure;
fig. 6 is a schematic structural diagram of the movable rod limiting block.
The locking mechanism comprises a rotating arm 1, a locking seat 2, a rotating arm limiting device 3, a movable rod limiting block 301, a disc spring 302, a movable rod 303, a rotating shaft 4, a locking device 5, an air cylinder 6, a cabin door 7 and a limiting screw rod 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly. If there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Example 1
A rotating arm structure with a self-locking function comprises a rotating arm 1, a lock seat 2 arranged on the rotating arm 1 and a rotating arm limiting device 3. The novel multifunctional lock is characterized in that a through groove is formed in the rotating arm 1, a lock seat 2 is arranged in the through groove, one end of the lock seat 2 is fixedly connected with the through groove of the rotating arm 1, a main body of the lock seat 2 is arranged in the through groove of the rotating arm 1, and a certain gap is formed between the outer portion of the lock seat 2 and the inner wall of the through groove of the rotating arm 1. A sliding groove in a waist-shaped hole form for sliding the locking device 5 is arranged in the lock seat 2.
The outer wall both sides of rocking arm 1 are fixed with rocking arm stop device 3, rocking arm stop device 3 includes movable rod 303, dish spring 302 and movable rod stopper 301, the sunken vacuole formation in one side of movable rod stopper 301, the cavity both ends are equipped with the bolt hole, rocking arm stop device 3 passes through the bolt fastening in 1 side of rocking arm, and the opening face of its cavity and the laminating of the outer wall of rocking arm 1, and be equipped with the cavity intercommunication in through-hole and the movable rod stopper 301 on rocking arm 1. The disc spring 302 is arranged in the cavity of the movable rod limiting block 301, one end of the movable rod 303 is arranged in the movable rod limiting block 301 containing the disc spring 302, the other end of the movable rod 303 penetrates through the through hole in the rotating arm 1 to be in contact with the outer wall of the lock seat 2, impact is counteracted through the disc spring, and noise is reduced. The contact part of the lock base 2 and the movable rod 303 is provided with a groove, so that the movable rod 303 and the lock base 2 can slide in a contact manner.
Example 2
Referring to fig. 1, a rotating arm structure with a self-locking function comprises a rotating arm 1, a lock base 2 arranged on the rotating arm 1 and a rotating arm limiting device 3. The novel multifunctional lock is characterized in that a through groove is formed in the rotating arm 1, a lock seat 2 is arranged in the through groove, a bending portion is arranged at one end of the lock seat 2, a mounting seat is arranged on the bending portion, and the mounting seat is sleeved with a rotating shaft 4 connected with the rotating arm 1 and coaxially mounted. The main body of the lock seat 2 is arranged in the through groove of the rotating arm 1, a certain gap is formed between the outer part of the lock seat 2 and the inner wall of the through groove of the rotating arm 1, and the lock seat 2 rotates in the gap under the impact force. A sliding groove in a waist-shaped hole form for sliding the locking device 5 is arranged in the lock seat 2.
The outer wall both sides of rocking arm 1 are fixed with rocking arm stop device 3, rocking arm stop device 3 includes movable rod 301, dish spring 302 and movable rod stopper 301, the sunken vacuole formation in one side of movable rod stopper 301, the cavity both ends are equipped with the bolt hole, rocking arm stop device 3 passes through the bolt fastening in 1 side of rocking arm, and the opening face of its cavity and the laminating of the outer wall of rocking arm 1, and be equipped with the cavity intercommunication in through-hole and the movable rod stopper 301 on rocking arm 1. A disc spring 302 is arranged in the cavity of the movable rod limiting block 301, one end of the movable rod 303 is arranged in the movable rod limiting block 301 containing the disc spring 302, and the other end of the movable rod 303 passes through the through hole on the rotating arm 1 and contacts with the outer wall of the lock base 2. The contact part of the lock base 2 and the movable rod 303 is provided with a groove, so that the movable rod 303 and the lock base 2 can slide in a contact manner.
Example 3
A rotating arm structure with a self-locking function comprises a rotating arm 1, a lock seat 2 arranged on the rotating arm 1 and a rotating arm limiting device 3. The novel multifunctional lock is characterized in that a through groove is formed in the rotating arm 1, a lock seat 2 is arranged in the through groove, a bending portion is arranged at one end of the lock seat 2, a mounting seat is arranged on the bending portion, and the mounting seat is sleeved with a rotating shaft 4 connected with the rotating arm 1 and coaxially mounted. The main body of the lock seat 2 is arranged in the through groove of the rotating arm 1, a certain gap is formed between the outer part of the lock seat 2 and the inner wall of the through groove of the rotating arm, and the lock seat 2 rotates in the through groove under the impact force. A sliding groove in a waist-shaped hole form for sliding the locking device 5 is arranged in the lock seat 2.
The outer wall both sides of rocking arm 1 are fixed with rocking arm stop device 3, rocking arm stop device 3 includes movable rod 303, dish spring 302 and movable rod stopper 301, the sunken vacuole formation in one side of movable rod stopper 301, the cavity both ends are equipped with the bolt hole, rocking arm stop device 3 passes through the bolt fastening in 1 side of rocking arm, and the opening face of its cavity and the laminating of the outer wall of rocking arm 1, and be equipped with the cavity intercommunication in through-hole and the movable rod stopper 301 on rocking arm 1. A high-elasticity rubber buffer cushion is arranged in the cavity of the movable rod limiting block 301, one end of the movable rod 303 is arranged in the movable rod limiting block 301 containing the disc spring 302, and the other end of the movable rod 303 passes through the through hole on the rotating arm 1 to be contacted with the outer wall of the lock base 2. The contact part of the lock base 2 and the movable rod 303 is provided with a groove, so that the movable rod 303 and the lock base 2 can slide in a contact manner.
Example 4
Referring to fig. 2 to 4, the opening and closing mechanism with the self-locking function comprises a cabin door 7, a rotating arm structure, a rotating shaft 4, a limit screw 8, a locking device 5 and an air cylinder 6, wherein one end of the rotating arm structure is connected with the cabin door 7, and the other end of the rotating arm structure is fixed on the rotating shaft 4 of a vehicle body.
The novel multifunctional lock is characterized in that a through groove is formed in the rotating arm 1, a lock seat 2 is arranged in the through groove, one end of the lock seat 2 is coaxially mounted with a rotating shaft 4 connected with the rotating arm 1, a main body of the lock seat 2 is arranged in the through groove of the rotating arm 1, and a certain gap is formed between the outer portion of the lock seat 2 and the inner wall of the through groove of the rotating arm 1. A sliding groove in a waist-shaped hole form for sliding the locking device 5 is arranged in the lock seat 2.
The outer wall both sides of rocking arm 1 are fixed with rocking arm stop device 3, rocking arm stop device 3 includes movable rod 301, dish spring 302 and movable rod stopper 301, the sunken vacuole formation in one side of movable rod stopper 301, the cavity both ends are equipped with the bolt hole, rocking arm stop device 3 passes through the bolt fastening in 1 side of rocking arm, and the opening face of its cavity and the laminating of the outer wall of rocking arm 1, and be equipped with the cavity intercommunication in through-hole and the movable rod stopper 301 on rocking arm 1. A disc spring 302 is arranged in the cavity of the movable rod limiting block 301, one end of the movable rod 303 is arranged in the movable rod limiting block 301 containing the disc spring 302, and the other end of the movable rod 303 passes through the through hole on the rotating arm 1 and contacts with the outer wall of the lock base 2. The contact part of the lock base 2 and the movable rod 303 is provided with a groove, so that the movable rod 303 and the lock base 2 can slide in a contact manner.
One end of the locking device 5 slides in a sliding groove of the lock seat 2 of the rotating arm structure, the other end of the locking device is installed in a vehicle body base, the locking device 5 is connected with an air cylinder 6 to drive the locking device to automatically move in the sliding groove air cylinder 6 of the lock seat 2, the rotating locking device 5 drives the lower rotating arm 1 of the cabin door 7 to rotate left and right, and the rotating arm 1 rotates around the rotating arm 1 shaft, so that the opening and closing of the cabin door 7 are realized. When the locking device 5 rotates to a state vertical to the lock base 2 in the sliding chute, a mechanism dead point is formed by the locking device 5 and the lower rotating arm 1 of the fairing, the locking device 5 crosses the mechanical dead point and is limited mechanically during locking, and when the locking device 5 reversely crosses the mechanical dead point during unlocking. After the rotating arm 1 starts to reach the dead point, the lock base 2 rotates left and right in the through groove of the rotating arm 1, the elastic buffer part is compressed by the lock base 2 through the movable rod 303, the elastic buffer part is impacted and stressed to be compressed, and sound caused by overlarge impact is avoided through extrusion of the elastic buffer part.
Example 5
This embodiment provides a method of operating the opening/closing mechanism with self-locking function described in embodiment 4.
In the process of opening the cabin door 7, the cylinder 6 drives the locking device 5, after the rotating arm 1 reaches a certain angle, the limiting screw 8 starts to contact the limiting device, the locking device 5 rotates to the process perpendicular to the lock seat 2, namely, the dead point is reached, the lock seat 2 rotates left and right in the through groove of the rotating arm 1, the lock seat 2 is compressed through the movable rod 303 so as to compress the internal disc spring 302, and then the disc spring 302 compresses the lock seat 2 through the movable rod 303. When the rotating arm 1 is perpendicular to the locking device 5, the compression amount of the disc spring 302 is the largest, the mechanism is continuously rotated, the rotating arm 1 and the locking device 5 gradually become an acute angle, and the compression amount of the disc spring 302 is reduced. When the tail end of the groove of the lock seat 2 is reached, the rotating arm 1, the locking device 5 and the bottom plate form a self-locking triangle, so that the self-locking triangle is kept at a set position; when unlocking, the locking device 5 rotates reversely, overcomes the pressure of the disc spring 302, reversely goes over a dead point, and unlocks.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a take tumbler structure of self-locking function which characterized in that, includes the rocking arm, locates the rocking arm and leads to the inslot and to have certain activity space's lock seat in leading to the inslot, locates on the rocking arm and to have cushioning effect's rocking arm stop device to the lock seat activity, be equipped with on the lock seat and be used for the gliding spout of locking device.
2. A pivoted arm structure with self-locking function as claimed in claim 1, wherein the pivoted arm limiting device comprises a movable rod, an elastic buffer member and a movable rod limiting block, the movable rod limiting block is fixed on the side surface of the pivoted arm, one end of the movable rod is arranged in the movable rod limiting block containing the elastic buffer member, and the other end of the movable rod passes through the through hole on the pivoted arm to contact with the outer wall of the lock seat.
3. A tumbler structure with self-locking function according to claim 2, wherein said elastic buffer member comprises a disc spring, a compression spring or an elastic cushion.
4. The tumbler structure with the self-locking function according to claim 2, wherein a groove is formed at a contact portion of the lock holder and the movable rod.
5. A rotating arm structure with a self-locking function as claimed in claim 1, wherein the rotating arm limiting device is arranged on a contact surface of the limiting screw rod and the rotating arm.
6. A tumbler structure with self-locking function according to claim 1, wherein a certain gap is formed between the inner wall of the tumbler through slot and the outer wall of the lock base.
7. The tumbler structure with the self-locking function according to claim 1, wherein the lock base and the tumbler are of an integrated structure, and one end of the lock base is fixed on the inner wall of the tumbler through slot.
8. A tumbler structure with self-locking function according to claim 1, wherein the lock base and the tumbler are of a split structure, and one end of the lock base is provided with a mounting base connected with a rotating shaft on which the tumbler is mounted.
9. An opening and closing mechanism with a self-locking function is characterized by comprising the rotating arm structure with the self-locking function, which is disclosed by any one of claims 1 to 8.
10. The opening and closing mechanism with self-locking function according to claim 9, comprising a cabin door, a rotating arm structure, a rotating shaft, a limit screw, a locking device and a cylinder, wherein one end of the rotating arm structure is connected with the cabin door, the other end of the rotating arm structure is fixed on the rotating shaft of the vehicle body, one end of the locking device slides in a sliding groove of a lock seat of the rotating arm structure, and the limit screw is arranged in a rotating plane of the rotating arm structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123220591.8U CN216921795U (en) | 2021-12-20 | 2021-12-20 | Rotating arm structure with self-locking function and opening and closing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123220591.8U CN216921795U (en) | 2021-12-20 | 2021-12-20 | Rotating arm structure with self-locking function and opening and closing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216921795U true CN216921795U (en) | 2022-07-08 |
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ID=82252058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123220591.8U Active CN216921795U (en) | 2021-12-20 | 2021-12-20 | Rotating arm structure with self-locking function and opening and closing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216921795U (en) |
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2021
- 2021-12-20 CN CN202123220591.8U patent/CN216921795U/en active Active
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