TWM272868U - Lock block device of a joint in a ladder - Google Patents

Description

M272868

[Technical field to which the new type belongs] The improved structure of the lock block of H h ^ creation ^ reduced ladder joint includes: an outer shell body with a plurality of m # f design body piece combinations, a lock block group, a spring, a trigger, ^ — π ^ 2 a plurality of elastic elements, a housing positioning rivet pin and a pull 2 卩 ', wherein the lock block group is riveted together by a lock block and a fixed pin to make it difficult to loosen to increase the folding ladder Safety; and punch a plurality of protruding points at the appropriate place on the edge of the lock block to avoid the lock block from loosening from the left and right sides of the chute during operation to increase the stability of the folding ladder joint. [Prior art] The conventional folding ladder joint, as shown in the first figure of the figure, includes an outer shell piece combination (100), an inner shell piece combination (200), and a lock block group (3 0 0 ), A spring (4000), a trigger (500), a three round slider (600), three elastic elements (7000), a housing positioning rivet pin (800) and a trigger Locate the rivet pin (900). The outer shell sheet combination (; [〇〇) is respectively composed of an outer shell top sheet (ii 〇) Λ-an outer shell lower sheet (1 2 0), and the inner shell sheet combination (200) is composed of one inner The upper shell piece (2 1 0) and an inner shell lower piece (2 2 0) are formed. The shell positioning rivet pin (800) is used to combine the inner and outer shell pieces (100) (2 〇)), to be rotatably fixed together, the trigger positioning rivet pin (900) is rotatably fixed to the trigger (500) at an appropriate position on the inner side of the outer casing piece assembly (100). • The lock block group (3 0 0) is composed of a lock block (3 1 0), a fixed piece (3 5 0), and a fixed pin (3 2 0). The lock block (3 1 0 ) Is a rectangular block with a blind hole on one side. The fixing piece (350) is a U-shaped piece body, the bottom of which is recessed from the center, a through hole is provided in the middle, and both ends of the top extend horizontally outward. Pass one end of the fixing pin (32 0) through the through hole of the fixing piece (3 50) and the locking block (31〇)

M272868 Fourth, the blind hole of the creation description (2), and the lock block (3 1 0), the fixing piece (3 50), and the fixing pin (3 2 0) are combined into a lock block group (3 0 0). It can be known from the foregoing that the lock block (310), the fixing piece (350), and the fixing pin (3 2 0) are a detachable and separable combination manner, and a lock block (3 1 0) is easily generated during use, The fixing piece (350), the fixing pin (320), and the spring (400) fall off, thereby causing the fixing of the folding ladder joint to be loosened, causing danger to the user. [New content] > The present invention is to improve the structure of a folding ladder joint, which is mainly to improve the shortcomings of the conventional folding ladder joint, which is easy to loose and cause danger. It includes: an outer shell piece combination, and an inner shell. Piece assembly, a lock block group, a spring, a trigger, a plurality of slidable posts, a plurality of elastic elements, a housing positioning rivet pin and a trigger positioning rivet pin; the outer shell piece combination is respectively loaded by an outer section. And an outer shell lower piece, the inner shell piece combination is composed of an inner shell upper piece and an inner shell lower piece, the shell positioning rivet pin is used to combine the inner and outer shell pieces to be rotatable The trigger positioning rivet pin fixes the trigger rotatably at a proper position inside the outer casing assembly, wherein the lock block group is composed of a lock block and a fixing pin, which A positioning hole with a predetermined diameter is drilled on one side of the block, and one end of the fixing pin has a ball head, and the ball head can be inserted into the positioning hole, and the ball head of the fixing pin is inserted into the lock block. After locating the hole, fix it with the jig. The fixed pin is riveted with the locking block, so that the locked block and the fixed pin are integrated into one body, and it is not easy to loosen, so as to increase the safety of the folding ladder.

Page 7 M272868 IV. Creation instructions (3) The riveted lock block group is placed in the mold. On the side where the lock block and the fixing pin are riveted, the lock block is punched with a die, so that the lock block is pressed after A plurality of protruding points on the left and right sides of the surface are generated at appropriate positions of the surface. When the locking block is pushed and pushed into an active state, the protruding point can be used to prevent the locking block from loosening from the left and right sides of the chute. To increase the stability of the folding ladder joint. Among them, when the fixing pin is riveted with the lock block, some movable clearances are reserved to facilitate the movement of the lock block. Among them, the side where the locking block is combined with the fixing pin is used as a reference to gradually tilt it toward the corresponding other side, and the two inclined surfaces are located on the two sides of the larger locking block product. With the inclined surface, The locking block can be smoother and faster when it is locked into the positioning recess, so as to improve the convenience of the folding ladder operation. This creation is an improvement of the structure of the lock block of the folding ladder joint. The lock block and the fixing pin are riveted together to increase the safety and stability of the folding ladder and improve the convenience during operation. In order to explain in detail, the following embodiment is given as an illustration, but this embodiment is not intended to limit the creation. [Embodiment] ® First, please refer to the second figure shown in the figure. The structure of the locking block of the folding ladder joint is improved, including an outer shell piece combination (10), an inner shell piece combination (20), and a lock piece. Group (30), a spring (40), a trigger (50), a three round slider (60), three elastic elements (70), a housing positioning rivet (80) and a trigger positioning Rivet pin (9 0). The outer casing sheet combination (1 0) is respectively composed of an outer casing sheet

M272868 Fourth, the creation instructions (4) (11) and a lower shell (12). The upper and lower pieces (η) (1 2) of the two outer shells are enclosed in a circular plate shape, and the lower half is formed into a hollow square shape, and chute grooves (1 3) are provided at appropriate places in the middle, and The grooves (1 3) are opposite to each other and aligned in the radial direction of the upper plate shape. The upper and lower pieces of the two outer shells (丨 丨) (丨 2) are provided with a central circular hole in the center of the upper part, so as to be rotatably fixed to the upper and lower pieces of the two inner shells (2 1) (2 2). together. A trigger positioning hole (丨 6) is respectively provided on the upper and lower plates of the two outer shells (1 1) (1 2), and the inner part is opposite to the inner side, and the trigger pin (9 0) is used to position the trigger (50). It is rotatably fixed at the two positioning holes (16). Two coupling holes (1 9) are respectively opposite to the upper and lower pieces of the two outer shells (1 1) (1 2), so that the upper and lower pieces of the two outer shells (1 1) can be used with rivets. (1 2) and the folding ladder are fixed together. In addition, the lower plate (1 2) of the outer shell is provided with a plate-shaped spring seat (1 4), and the elastic yellow seat (1 4) is located at an appropriate place along the long side of its sliding groove (13). A pin hole (1 4 1) is formed near the center of the plate surface of the spring seat (1 4). When the upper and lower plates (11) (12) of the two outer shells are combined into one body, the spring seat ( 1 4) is tied to the space between the upper and lower pieces of the two outer shells (11) (1 2), and the pin hole '(1 4 1) can be located exactly in the center of the space so that the lock block group (3 0) The lower end of the fixing pin (3 2) penetrates into the pin hole (1 4 1). Furthermore, when the upper and lower pieces (11) (1 2) of the two outer shells are combined into one body, the upper part has a hollow portion, and II allows the inner shell piece assembly (2 0) to extend therebetween. The inner casing sheet assembly (20) is composed of an inner casing upper sheet (2 1) and an inner casing lower sheet (2 2). Three positioning notches (2 3 1) (2 3 2) and (2 3 3) are provided on the end edges of the upper portions of the discs of the upper and lower plates (2 1) (2 2) of the two inner shells. To accommodate the lock block (3 1). Adjacent to the lower edge of each of the positioning notches (2 3 1) (2 3 2) (2 3 3) are respectively provided with

Page 9 M272868

The small arc groove (2 4) is: the sound seat (25) is located near the lower end of the inner shell to fix the seat (25), and the other two inner shells are provided with holes for fixing the shell ( 20) The following pieces can be used to turn the springs (21) and (22). Each end is divided into two pieces and the outer piece is riveted to fix the lower part to accommodate the two ends of each of the smooth posts (60). Then, each of the small arc grooves (2 4) on (2 2) is counterclockwise, and a small tongue piece perpendicular to the disc-shaped surface is used to fix one end of the C-shaped spring piece (70) to buckle each. The fixing buckles the middle portion of each of the 5 Hai round pillars (60). In addition, the upper center of the (2 1) (2 2) are respectively provided with center circular holes of the upper and lower pieces of the center circular shell (1 1) (1 2), and then the pins (80) are inserted into the inner and outer shells. The body piece combination (j 〇) is set together. In addition, two corresponding coupling holes (2 9) are respectively provided at the upper and lower positions of the two inner shells so as to align the upper and lower pieces (2 丨) (2 2) of the two inner shells with rivets. And fixed with the folding ladder. Please refer to the second and third drawings at the same time. The lock block group (30) is composed of a lock block (3 1) and a fixed pin (3 2), which is drilled on one side of the lock block (3 1). A positioning hole (3 3) with a predetermined aperture really exists, and one end of the fixing pin (3 2) has a ball-shaped head, and the ball-shaped head can be inserted into the positioning hole (3 3). After inserting the ball-shaped head of the fixing pin (3 2) into the positioning hole (3 3) of the locking block (3 1), the fixing pin (3 2) and the locking block (3 1) are riveted with a jig, and the Leave some moving gaps to facilitate the movement of the locking block (31). The riveted locking block (3 1) is integrated with the fixing pin 3 2), which is not easy to loose, so as to increase the safety of the folding ladder. Next, referring to the fourth figure in the figure, the riveted locking block group (30) is placed in the mold, and the side where the locking block (3 1) and the fixing pin (3 2) are riveted is punched with a die. The locking block (3 1) causes the locking block (3 1) to generate a plurality of protruding points (3 5) on the left and right sides at appropriate places on the edge of the surface after charging, as shown in the fifth figure in the figure.

Page 10 M272868 IV. Creation Instructions (6) Please also refer to the second figure in the figure, and place the two short sides of the lock block (3 1) across the upper and lower pieces of the two outer shells (1 1) (1 2) In the upper sliding groove (1 3), the locking block (3 1) can be moved up and down in the two sliding grooves (1 3), and can be snapped in or out. Each positioning notch (231) (232) (2 3 3) of the lower piece (21) (22). When the trigger (50) is pulled, the lock block (3 1) is pushed by the trigger (50), and at the same time the lock block (3 1) is moved down the sliding groove (1 3), and the lock block (3 1) ) Can be separated from the original positioning recess (231) (232) (233), so that the upper and lower pieces of the inner casing (2 1) (2 2) are not restricted, and the angle can be changed to reduce the ladder. That can make the same angle change to facilitate the use of operators. With the design of the protruding point (3 5) of the aforementioned lock block, when the lock block (3 1) is biased and moved into an active state, the lock block (3 1) can be prevented from loosening from the left and right to eject the chute (1 3 In addition, to increase the stability of the folding ladder joint. In addition, for another embodiment of this creation, please refer to the sixth diagram of the drawing, which uses the side where the locking block (3 1) and the fixing pin (3 2) are combined as The reference is to gradually tilt the other side corresponding to the tide, and the two inclined surfaces are located on the two sides of the larger area of the locking block (3 1). By the design of these inclined surfaces, the locking block (3 1) When snapping into the positioning notches (2 3 1) (2 3 2) (2 3 3), it can be smoother and faster, so as to improve the convenience of the folding ladder operation. In summary, the original design of the folding ladder joint The structure of the lock block is improved, so that the lock is riveted with the fixing pin to facilitate the assembly and improve the stability of the lock block group, which is suitable for industrial applicability. The lock block and the fixing pin are riveted into a body. Improving the habit of separating the lock block group is easy to fall off, causing the folding ladder joint to become loose and causing a dangerous shortcoming, which has a progressive effect of improving efficacy. Before the creation of the application was not found in the publication, its novelty is also no doubt that this creation together in

Page 11 " " " ----- M272868 IV. Creative Instructions (7) According to the provisions of the Patent Law, an application for a new type of patent is filed in accordance with the law, and I would like to ask for your review and grant the patent. < 1 __circle 1 page 12 M272868 Simple illustration of the drawing [Simplified illustration of the drawing] The first drawing is a three-dimensional exploded view of the conventional folding ladder joint structure. The second figure is a three-dimensional exploded view of the improved lock block structure of the folding ladder joint in this creation. The third picture is a three-dimensional exploded view of the lock block group and the spring in this creation. The fourth picture is a perspective view of the locking block group of this creation and the punching point is punched out. The fifth picture is a schematic diagram of the locking block group and the protruding point of this creation. The sixth figure is a perspective view of the locking block group riveting completed and punching #out point of another embodiment of the present creation.

Explanation of main component symbols (10) (100) Outer shell piece combination (20) (200) Inner shell piece combination. (30) (300) Lock block group (40) (400) Spring (50) (500) Trigger ( 60) (600) Round column (70) (700) C-shaped spring leaf (80) (800) Housing positioning pin (90) (900) Trigger positioning rivet pin (11) Outer casing upper plate12) Outer casing Lower piece (13) Chute (14) Spring seat (141) Pin hole (16) Trigger positioning hole (19) (29) Combining hole (21) Inner case upper piece (22) Inner case lower piece (231) (232) (233) Notch (24) Small arc groove Page 13 M272868 Brief description of the drawing (25) Fixing base (32) (320) Fixing pin (35) Projecting point (31) (310) Locking block ( 33) Positioning holes (3 5 0) Fixing the film country 第 14 页

Claims (1)

M272868 V. Application for patent scope 1. An improvement of the structure of the locking block of the folding ladder joint, comprising: an outer shell piece combination, an inner shell piece combination, a locking block group, a spring, a plate machine, a plurality of rounded columns, A plurality of elastic machine positioning rivet pins; wherein the outer shell is formed by an outer shell lower piece, the inner shell is formed by an inner shell lower piece, and the shell is combined to be rotatably fixed to a rotatable fixed to the outer shell piece The group is characterized in that the lock block group # is drilled on one side of the lock block and has a pin at one end having a ball head, which is integrated with the fixing pin. 2. If the first scope of the patent application is for structural improvement, the lock block and the plural protruding blocks opposite to the left and right sides loosely pop out of the chute from left to right. Among them, the movable gap is fixed to facilitate the movement of the locking block § 4. For example, the scope of patent application 1 or the improvement of the structure of the locking block, in which the lock is used as the reference, so that it is oriented to the other side, which is located in the larger two areas of the locking block. Each block can be used as a component when it is snapped into the positioning notch. A casing positioning rivet pin and a lever combination are used by an outer shell upper piece and a body piece combination are respectively formed by an inner shell upper piece and a positioning rivet pin. The inner and outer shells are lifted up, the trigger positioning rivet pin closes the trigger at an appropriate position on the inside; it is composed of a lock block and a fixed lock, a positioning hole of a predetermined diameter, and the fixing can be inserted into the positioning hole A point is set on the edge of the side where the locking block fixing pin of the folding ladder joint described in the locking block is combined, and the protruding point can prevent the lock from increasing the stability of the folding ladder joint. When the pin of one of the folding ladder joints described in item 2 is riveted with the lock block, reserve some activities. The side of the combination of the one of the folding ladder joints described in item 2 and the fixing pin is gradually inclined on one side, and the two On the side of the inclined surface, the inclined surface makes the lock smooth and fast to improve the folding ladder operation. Page 15 M272868 5. Convenience of patent application during operation. Ο ΙΙ · 11 Page 16