CN112524132A

CN112524132A - Knob type locking mechanism of workbench

Info

Publication number: CN112524132A
Application number: CN202011503110.1A
Authority: CN
Inventors: 谢小燕; 蔡绪勇
Original assignee: Suzhou Pica Aluminum Industry Co Ltd
Current assignee: Suzhou Pica Aluminum Industry Co Ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-03-19
Anticipated expiration: 2040-12-18
Also published as: CN112524132B

Abstract

A knob type locking mechanism of a workbench comprises an operating part and a locking part; the operating part is connected with a knob cover and is provided with a continuous undulating surface comprising alternate wave crests and wave troughs; the knob cover is rotatably connected to a knob seat through a horizontal rotating shaft; the locking piece is elastically arranged along the horizontal direction relative to the knob seat, the first end of the locking piece protrudes into a through hole of the knob seat, the second end of the locking piece is arranged corresponding to a locking hole of the mechanism to be locked, and the first end of the locking piece is provided with an abutting surface which is abutted and matched with the undulated curved surface; in the rotation process of the knob cover, when the wave crest of the undulating surface is abutted and matched with the abutting surface of the locking piece, the locking mechanism is in an unlocking state; when the wave trough of the undulated surface is abutted and matched with the abutting surface of the locking piece, the locking mechanism is in a locking state. According to the invention, the wave crests and the wave troughs on the undulating surface are matched with the abutting surfaces on the locking pieces in an abutting mode, so that the locking mechanism is locked or unlocked, the operation is more convenient, and the reliability is very high.

Description

Knob type locking mechanism of workbench

Technical Field

The invention relates to a locking mechanism, in particular to a knob type locking mechanism of a workbench.

Background

In daily life and work, small operation platforms (or called work platforms and operation platforms) are used in many occasions, such as car washing platforms special for car washing, household mini scaffolds and the like. The most direct effect of using the operation table is to make the climbing operation easy and convenient, and bring convenience to the life and work of people.

In the prior art, in order to improve the universality and achieve humanized design, people improve the structure of the small-sized operating platform for many times, and a foldable operating platform appears. The foldable operation platform, namely the ladder post under the table top is designed into the foldable rotating foot, the ladder post is folded and folded in the carrying and storing process, and when in use, the ladder post is unfolded for supporting.

Among the prior art, the expansion and the folding of two ladder posts are realized through a hasp structure, and the operation is inconvenient and the reliability is poor, and is also firm inadequately when the operation panel uses moreover, and hasp structure's life-span is shorter, and especially when the mesa bearing is great, this hasp structure can damage even, brings the potential safety hazard.

Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.

Disclosure of Invention

The invention aims to provide a knob type locking mechanism of a workbench.

In order to achieve the purpose, the invention adopts the technical scheme that: a knob type locking mechanism of a workbench comprises an operating part and a locking part;

the operating part is connected with a knob cover and is provided with a continuous undulating surface comprising alternate wave crests and wave troughs;

the knob cover is rotatably connected to a knob seat through a horizontal rotating shaft;

the locking piece is elastically arranged along the horizontal direction relative to the knob seat, the first end of the locking piece protrudes into a through hole of the knob seat, the second end of the locking piece is arranged corresponding to a locking hole of the mechanism to be locked, and the first end of the locking piece is provided with an abutting surface which is abutted and matched with the undulated curved surface;

in the rotation process of the knob cover, when the wave crest of the undulating surface is abutted and matched with the abutting surface of the locking piece, the locking piece is far away from and displaced relative to the knob cover, at the moment, the locking piece retracts, and the locking mechanism is in an unlocking state; when the wave trough of the undulating surface is abutted and matched with the abutting surface of the locking piece, the locking piece moves close to the knob cover along the horizontal direction, the locking piece extends out at the moment, and the locking mechanism is in a locking state.

The relevant content in the above technical solution is explained as follows:

1. in the above solution, the knob type locking mechanism is assembled on a workbench when in use, and the workbench may be a car washing platform dedicated for car washing, a household mini scaffold, or the like. The knob type locking mechanism is arranged at the hinged position of the ladder column and the table top. The workbench may be provided with two knob type locking mechanisms, or three or four, etc., and the number of the knob type locking mechanisms assembled on the workbench is not limited herein.

2. In the above scheme, the undulation curved surface can have two wave crests and a wave trough, and the undulation curved surface can also have a plurality of wave crests and a plurality of wave troughs, and the number of the wave crests and the wave troughs is not limited in the scheme.

3. In the above scheme, the knob cover horizontally rotates on a vertical plane relative to the knob seat.

4. In the above scheme, the locking piece comprises a push rod, a lock rod and a connecting rod;

the front end of the push rod protrudes into the through hole of the knob seat to form the horizontal translation of the push rod in the horizontal direction. The rear end of the push rod is in transmission connection with the lock rod through the connecting rod, and the push rod and the lock rod are vertical to each other in the horizontal direction to form that the lock rod translates in the left-right direction;

the locking rod penetrates through a guide plate and is arranged opposite to the guide plate in a sliding mode, the guide plate is arranged opposite to the knob seat in a fixed mode, and the locking rod is driven by the push rod to be unlocked and locked through translation in the left and right directions.

5. In the above scheme, a sliding mechanism is arranged between the knob cover and the knob seat, and the sliding mechanism comprises a buckle and a sliding groove;

the knob cover is characterized in that a plurality of buckles are arranged at the bottom of the knob cover at intervals, the knob seat corresponds to the buckles and is concavely provided with a sliding groove in the rotating direction of the knob cover, and the plurality of buckles are matched with the sliding groove so that the knob cover can slide in the sliding groove.

Compared with the prior art, the invention has the following specific advantages:

1. according to the invention, the wave crests and the wave troughs on the undulating surface are in abutting fit with the abutting surface on the locking piece, so that the locking mechanism is locked or unlocked, the operation is more convenient, and the reliability is very high;

2. the invention can ensure enough stability when the workbench is used, and the locking mechanism is not easy to damage even if the table top bears a heavy load, thereby ensuring the safety of a user;

3. the invention has the advantages of simple structure, easy processing, low cost, reliability, durability and the like.

Drawings

FIG. 1 is a schematic structural diagram of a knob cover according to an embodiment of the present invention;

FIG. 2 is a schematic structural view in a rear view direction of an embodiment of the present invention;

FIG. 3 is an exploded view in elevation of an embodiment of the present invention;

FIG. 4 is a schematic perspective view of the knob seat of the embodiment of the present invention when not assembled;

fig. 5 is a schematic structural view of the embodiment of the present invention when assembled to a car wash station.

In the above drawings: a knob cover; 2. a locking member; 3. a knob seat; 4. a return torsion spring; 5a, ladder posts; 5b, a table top; 11. an operation section; 12. a rotating shaft; 13. buckling; 14. a knob handle; 21. an abutting surface; 22. a push rod; 23. a lock lever; 24. a guide plate; 25. a connecting rod; 26. a return spring; 31. a through hole; 32. a through hole of the rotating shaft; 33. a sliding groove; 34. a limiting block; 111. a relief surface; 221. a first end; 231. a second end; 1111. wave crest; 1112. a wave trough.

Detailed Description

The invention is further described with reference to the following figures and examples:

example (b): the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an", "the" and "the", as used herein, also include the plural forms.

The terms "first," "second," and the like, as used herein, do not denote any order or importance, nor do they denote any order or importance, but rather are used to distinguish one element from another element or operation described in such technical terms.

As used herein, "connected" or "positioned" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.

As used herein, the terms "comprising," "including," "having," and the like are open-ended terms that mean including, but not limited to.

As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.

The terms "front", "rear", "left", "right", and the like used herein are directional terms, and are used only for describing the positional relationship between the structures, and are not intended to limit the protection schemes and the actual directions of the embodiments.

Referring to fig. 1 to 5, a knob type locking mechanism for a table includes an operating portion 11 and a locking member 2.

When in use, the knob type locking mechanism is assembled on a workbench, and the workbench can be a car washing platform special for car washing, a household mini scaffold and the like. As shown in fig. 5, in the present embodiment, the workbench is a car wash, and the knob type locking mechanism is disposed at the hinge joint of the ladder post 5a and the table top 5 b. The car wash platform can be provided with two knob type locking mechanisms, or three or four, and the like, and the number of the knob type locking mechanisms assembled on the workbench is not limited in the embodiment.

As shown in fig. 1, the operation portion 11 is connected to a knob cover 1, and has a continuous undulating surface 111 including alternating peaks 1111 and valleys 1112. In this embodiment, the undulating surface 111 has two peaks 1111 and one valley 1112, and the undulating surface 111 may also have a plurality of peaks 1111 and a plurality of valleys 1112, and the number of the peaks 1111 and the valleys 1112 is not limited herein.

As shown in fig. 3, a knob handle 14 is provided on the knob cover 1, and the knob handle 14 is used for a user to rotate the knob cover 1.

The knob cover 1 is rotatably connected to a knob seat 3 through a horizontal rotating shaft 12, the knob seat 3 is provided with a rotating shaft through hole 32 corresponding to the rotating shaft 12, and the rotating shaft 12 penetrates through the rotating shaft through hole 32. The knob cover 1 rotates horizontally on a vertical plane relative to the knob seat 3. The knob cover 1 is rotatably arranged in the front and rear direction relative to the knob seat 3.

The knob seat 3 is provided with a limit block 34 corresponding to the operation part 11, and the outer peripheral surface of the operation part 11 is attached to the inner peripheral surface of the limit block 34 to prevent the operation part 11 from being dislocated in the moving process.

The locking member 2 is disposed elastically along the horizontal direction relative to the knob seat 3, and a first end 221 thereof protrudes into a through hole 31 of the knob seat 3, and a second end 231 thereof is disposed corresponding to a locking hole of the mechanism to be locked. In this embodiment, the locking hole of the mechanism to be locked is a locking hole provided in the car wash deck in the direction in which the ladder column 5a rotates.

As shown in fig. 3, the first end 221 of the locking member 2 is provided with an abutting surface 21 which is abutted and matched with the relief curved surface 111.

In the rotation process of the knob cover 1, when the wave crest 1111 of the undulated surface 111 is in abutting fit with the abutting surface 21 of the locking piece 2, the locking piece 2 moves away from and moves relative to the knob cover 1, at this time, the locking piece 2 retracts, and the locking mechanism is in an unlocked state; when the wave trough 1112 of the undulated surface 111 is in abutting engagement with the abutting surface 21 of the locking member 2, the locking member 2 moves closer to the knob cover 1, and the locking member 2 extends out, so that the locking mechanism is in a locked state.

Preferably, the knob type locking mechanism is further provided with a limiting structure, and the limiting structure comprises two second limiting blocks 15 which are oppositely arranged on the inner side edge of the knob cover 1 and a stop block 35 which is arranged on the knob seat 3. The two second limit blocks 15 and the stop blocks 35 are in a stop matching effect, so that the knob cover 1 is prevented from excessively rotating relative to the knob seat 3.

In the present embodiment, the rotation angle of the knob cover 1 when switching between the unlocked state and the locked state is 90 degrees, and the rotation angle may be 80 degrees, 100 degrees, 180 degrees, or the like depending on the structure of the relief curved surface 111.

As shown in fig. 4, the locking member 2 includes a push rod 22, a lock lever 23, and a link 25.

The first end 221 of the locking element 2 is the front end of the push rod 22, and the second end 231 of the locking element 2 is the end of the locking rod 23 facing the mechanism to be locked.

The front end of the push rod 22 protrudes into the through hole 31 of the knob seat 3, so that the push rod 22 can horizontally translate.

The rear end of the push rod 22 is in transmission connection with the lock rod 23 through the connecting rod 25, and the push rod 22 and the lock rod 23 are vertical to each other in the horizontal direction to form the horizontal movement of the lock rod 23 in the left-right direction. In this embodiment, one end of the connecting rod 25 is hinged to the rear end of the push rod 22, and the other end is hinged to the lock rod 23, so as to form a transmission connection between the push rod 22 and the lock rod 23.

The lock rod 23 penetrates through a guide plate 24 and is arranged in a sliding mode relative to the guide plate 24, the guide plate 24 is fixedly arranged relative to the knob seat 3, and the push rod 22 drives the lock rod 23 to be unlocked and locked through translation in the left and right directions. The guide plate 24 guides the lock lever 23.

When the push rod 22 translates backwards, the lock rod 23 is driven to translate leftwards, at the moment, the lock rod 23 retracts, and the locking mechanism is in an unlocking state; when the push rod 22 translates forwards, the lock rod 23 is driven to translate rightwards, at the moment, the lock rod 23 extends out, and the locking mechanism is in a locking state.

The lock rod 23 is sleeved with a return spring 26, and in a normal state, the return spring 26 is in a compressed state, so that under the action of no external force, the lock rod 23 moves rightwards under the action of the elastic force of the return spring 26 to drive the push rod 22 to reset.

A sliding mechanism is arranged between the knob cover 1 and the knob seat 3, and comprises a buckle 13 and a sliding groove 33;

the bottom of the knob cover 1 is provided with a plurality of buckles 13 at intervals, the knob seat 3 corresponds to the buckles 13 and is concavely provided with a sliding groove 33 along the rotating direction of the knob cover 1, and the buckles 13 are matched with the sliding groove 33, so that the knob cover 1 slides in the sliding groove 33.

A reset torsion spring 4 is arranged between the knob cover 1 and the knob seat 3. When the knob cover 1 is subjected to external force, the knob cover 1 rotates along a first direction, and the reset torsion spring 4 deforms to store force; when the external force disappears, the knob seat 3 rotates along the second direction under the action of the torsion of the reset torsion spring 4, so as to reset. When the first direction is a clockwise direction, the second direction is a counterclockwise direction; when the first direction is a counterclockwise direction, the second direction is a clockwise direction. The reset torsion spring 4 is not arranged between the knob cover 1 and the knob seat 3, and at the moment, the knob cover 1 rotates along the same direction (namely, clockwise direction or anticlockwise direction) to realize the switching between the unlocking state and the locking state.

The working process is as follows: during unlocking, the knob handle 14 is twisted, so that the knob cover 1 rotates in a clockwise (anticlockwise) direction, the undulating surface 111 abuts against and is matched with the abutting surface 21 of the locking piece 2, when the undulating surface 111 rotates to the state that the wave crest 1111 of the undulating surface 111 abuts against and is matched with the abutting surface 21 of the locking piece 2, the locking piece 2 moves away from and away from the knob cover 1, at the moment, the locking piece 2 retracts, and the locking mechanism is in an unlocking state; when locking, torsion disappears, knob lid 1 receives the torsion of reset torsion spring 4 to rotate along anticlockwise (clockwise) direction, simultaneously locking piece 2 under the spring action of reset spring 26 with undulation 111 supports to lean on the cooperation, locking piece 2 is relative knob lid 1 does and is close to the displacement, when rotating to undulation 111 the trough 1112 with locking piece 2 support to lean on the face 21 to support to cooperate, locking piece 2 stretches out, and locking mechanical system is the locking state.

In conclusion, compared with the prior art, the invention has the following specific advantages:

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A knob type locking mechanism of a workbench is characterized in that: comprises an operation part (11) and a locking piece (2);

the operating part (11) is connected to a knob cover (1) and is provided with a continuous undulated curved surface (111) comprising alternating wave crests (1111) and wave troughs (1112);

the knob cover (1) is rotatably connected to a knob seat (3) through a horizontal rotating shaft (12);

the locking piece (2) is elastically arranged along the horizontal direction relative to the knob seat (3), a first end (221) of the locking piece protrudes into a through hole (31) of the knob seat (3), a second end (231) of the locking piece is arranged corresponding to a locking hole of a mechanism to be locked, and a leaning surface (21) which is leaned and matched with the undulated curved surface (111) is arranged at the first end (221) of the locking piece (2);

in the rotation process of the knob cover (1), when the wave crest (1111) of the undulated curved surface (111) is matched with the abutting surface (21) of the locking piece (2) in an abutting mode, the locking piece (2) does away displacement relative to the knob cover (1), at the moment, the locking piece (2) retracts, and the locking mechanism is in an unlocking state; when the wave trough (1112) of the undulating surface (111) is abutted and matched with the abutting surface (21) of the locking piece (2), the locking piece (2) moves close to and moves relative to the knob cover (1), at the moment, the locking piece (2) extends out, and the locking mechanism is in a locking state.

2. A knob lock mechanism for a workbench according to claim 1, wherein: the locking piece (2) comprises a push rod (22), a lock rod (23) and a connecting rod (25);

the knob cover (1) is rotationally arranged in the front-back direction relative to the knob seat (3);

the front end of the push rod (22) protrudes into a through hole (31) of the knob seat (3) to form the horizontal translation of the push rod (22);

the rear end of the push rod (22) is in transmission connection with the lock rod (23) through the connecting rod (25), and the push rod (22) and the lock rod (23) are vertical to each other in the horizontal direction to form translation of the lock rod (23) in the left-right direction;

the lock rod (23) penetrates through a guide plate (24) and is arranged in a sliding mode relative to the guide plate (24), the guide plate (24) is fixedly arranged relative to the knob seat (3), and the push rod (22) is formed to drive the lock rod (23) to horizontally move in the left-right direction to achieve unlocking and locking;

when the push rod (22) translates backwards, the lock rod (23) is driven to translate leftwards, at the moment, the lock rod (23) retracts, and the locking mechanism is in an unlocking state; when the push rod (22) translates forwards, the lock rod (23) is driven to translate rightwards, at the moment, the lock rod (23) extends out, and the locking mechanism is in a locking state.

3. A knob lock mechanism for a workbench according to claim 2, wherein: and a return spring (26) is sleeved on the lock rod (23).

4. A knob lock mechanism for a workbench according to claim 2, wherein: one end of the connecting rod (25) is hinged with the push rod (22), and the other end of the connecting rod is hinged with the lock rod (23).

5. A knob lock mechanism for a workbench according to claim 1, wherein: a reset torsion spring (4) is arranged between the knob cover (1) and the knob seat (3).

6. A knob lock mechanism for a workbench according to claim 1, wherein: a sliding mechanism is arranged between the knob cover (1) and the knob seat (3), and comprises a buckle (13) and a sliding groove (33);

the knob lid (1) bottom interval arrangement has a plurality of buckles (13), knob seat (3) correspond buckle (13) are followed the rotation direction of knob lid (1) is gone up to be equipped with sliding tray (33) in the concave, and is a plurality of buckle (13) with sliding tray (33) cooperate, so that knob lid (1) slides in sliding tray (33).

7. A knob lock mechanism for a workbench according to claim 1, wherein: the knob type locking mechanism is further provided with a limiting structure, and the limiting structure comprises two second limiting blocks (15) which are oppositely arranged on the inner side edge of the knob cover (1) and a stop block (35) arranged on the knob seat (3).