CN110946395A

CN110946395A - Safety assembly of top-speed adjustable table

Info

Publication number: CN110946395A
Application number: CN201911254046.5A
Authority: CN
Inventors: 饶弘剑
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-04-03
Anticipated expiration: 2039-12-09
Also published as: CN110946395B

Abstract

Safety assembly of extremely fast adjustable table. The Chinese patent 'adjustable table' respectively lifts the front edge and the rear edge of the table top plate, and changes the height difference of the front edge and the rear edge to adjust the inclination. The steeper the adjustment, the more space between the table top and the user and the more free the table top can be. The Chinese patent 'inclined plate and application thereof' utilizes the inclined plate to convert the gravity of a table into transverse extrusion force and extrude the pipe wall to realize positioning. The press key under the table board is held, the inclined plate linked with the press key is pulled, the positioning is released, the press key is directly lifted, the hand is spread when the press key is in place, and the operation is convenient and rapid. However, these two techniques also create potential safety hazards in the accidental unscrewing and dropping of the table top. The damping cover is used for increasing the damping, and the desktop plate can not rotate, so that the desk plate does not have accidental downward rotation. The transmission path from the key to the swash plate is disconnected, and then the disconnected two ends are connected by the tension spring. The inclined plate can be pulled only by pinching the button and not pulling the inclined plate, and the inclined plate can be pulled only by simultaneously pulling the desktop plate at the upper end, so that the accidental falling does not exist. As the potential safety hazard is thoroughly eliminated, the adjustment can be carried out with ease, and the operation is finished instantly.

Description

Safety assembly of top-speed adjustable table

Technical Field

The invention relates to a table with an adjustable table top height and inclination, and the safety problem during adjustment is the key point of the table.

Background

The desk is used for learning in class for a long time, and different things are done in different classes, which is not beneficial to the health of people, especially the growth and development of teenagers. Various adjustable tables with adjustable tabletop height and inclination are created for this purpose. The existing adjustable tables, including some adjustable tables with excellent performance, always have the problems of one kind or another, and especially have the worry of safety. Two of these cases are relevant to the present invention.

The conventional method for adjusting the inclination is to rotate the table top plate by taking the front edge of the table top plate as an axis. When the table top rotates towards the user, the space between the table top and the user becomes smaller and smaller, so that people feel narrow and difficult to develop. This is especially the case in a classroom setting where desks are compactly arranged. The Chinese patent 'adjustable table' (publication number: CN 104510161A; published Japanese 2015.04.15) thoroughly overturns the adjusting mode. The table of the patent has four table legs, an inner tube and an outer tube, wherein the inner tube is arranged below the upper outer tube. The back edge of the table top board is hinged on the cross bar between the top ends of the inner tubes of the two back table legs, and the front edge of the table top board is placed on the supporting plate at the top ends of the inner tubes of the two front table legs. The front inner pipe and the rear inner pipe are respectively lifted, so that the height difference of the front edge and the rear edge of the desktop plate is changed, and the inclination is adjusted. The steeper the adjustment, the more space is available between the table top and the user. When the adjusting is steep, the supporting plate which supports the front edge of the table top plate is vacated, and a position for placing articles is added. These features leave the user more free to work.

In the prior art, most of the positioning after the lifting adjustment adopts a mode of transversely inserting bolts, which is troublesome and unsafe. The Chinese patent 'sloping plate and application thereof' (publication number: CN 105919282A; published: 2016.09.07) also makes subversive improvement on the positioning mode. The gravity of the table is converted into transverse extrusion force to extrude the pipe wall by using an inclined plate (a rectangular flat plate with a high end and a low end which is obliquely arranged at the lower end of the inner pipe of the table leg), so that the inner pipe and the outer pipe are tightly attached together to realize positioning. Two sides of the lower surface of the table top plate are respectively provided with a key and are respectively connected with the inclined plates in the inner pipes of the two table legs to form a linkage relation. Because the press keys are arranged under the table top plate, when the table top plate is held, namely the press keys are held upwards, the high end of the inclined plate linked with the press keys is pulled up, the positioning is released, at the moment, hands do not need to be changed, the table top plate is directly held for lifting adjustment, after the press keys are adjusted in place, the press keys and the inclined plate linked with the press keys are immediately reset, and the press keys and the inclined plate linked with the press keys return to the positioning state. The straight connecting end is lifted and adjusted along with the table panel, and the table panel is automatically positioned after being adjusted, thereby being instantly completed, and being convenient and fast.

The two patent technologies almost improve the performance of the adjustable table to the utmost. Unexpected safety hazards were discovered during later implementation and use of the sample table. 1. When a user adjusts the lifting of the table top plate, the user often does not want to stretch the handle below the table top plate and press the table top plate, but lifts the table top plate upwards to be in an upright state, then adjusts the table top plate, and puts down the table top plate after the table top plate is adjusted, so that the table top plate is easy and smooth to do. However, the table top plate in the upright state is unsafe, and the user can easily hurt the table top plate by screwing down and smashing the table top plate on the hand. 2. The instant positioning of the user holding the keys is released immediately, which may cause the unfamiliar people, especially children, to be unable to prevent the keys suddenly and to know that the keys are held upwards and are freely dropped from the upper part of the table including the table top plate, and as a result, the keys and the fingers are hit on the lower supporting plate together to cause injury. The safety is not guaranteed, and the performance is not good or useful.

Disclosure of Invention

The invention aims to solve the two safety problems and provide a safe and reliable adjustable table on the premise of keeping the original good performance.

The object of the present invention is achieved by the following means.

1. The proposal for solving the accidental downward rotation of the table top plate is as follows:

the table top board is hinged on the cross rod, and the reason that the damping is small is that accidental downward rotation occurs. The damping cover is additionally arranged on the cross rod, so that the damping is large, the desktop plate cannot rotate, and the situation of accidental downward rotation is avoided.

The damping cover is provided with a piece a and a piece b which are folded from two sides of the cross rod respectively and clamped in the cross rod. The cross section and the longitudinal section of the two damping covers are in fan-ring shapes, and the whole damping covers are in saddle shapes. The two ends of the damping cover a are provided with transverse end covers, the two sides of each end cover are provided with jacks, and the two ends of the damping cover b are provided with longitudinal inserting pieces. Two bases are arranged on the back of the table board corresponding to the two ends of the two damping covers. The both sides of base have the bolt that matches with the jack, and the centre has the slot that matches with the inserted sheet, lets the middle of a damping cover and the middle of b damping cover paste the horizontal pole during installation, lets the bolt wear in the jack, lets the inserted sheet insert in the slot, then screws up the nut on the bolt.

2. The proposal for solving the accidental falling of the table top plate is as follows:

the transmission path from the key to the inclined plate is disconnected, and then the disconnected two ends are connected by a tension spring. The specification size of the tension spring needs to meet a condition that: when a user holds the key up, the tension spring rises along with the key, the positioned inclined plate cannot be pulled open, and the inclined plate can be pulled open only when the user simultaneously moves towards the upper end table board. That is, the user always faces the upper table top at the moment of the release of the positioning, so that the user does not accidentally fall down.

The transmission path from the key to the swash plate is a slide plate. In this scheme, the last edge of slide is eaves form and whole is in the inner tube. A longitudinal pull rod is arranged above the sliding plate in the inner tube, the tip of the pull rod is folded by 90 degrees and extends out of the opening at one side of the upper end of the inner tube, and the tail end of the pull rod is provided with a horizontal key. The lower section of the tie rod is recessed from one side and has a longitudinal plate with a C-shaped longitudinal section, here called C-shaped plate. The middle section of the C-shaped plate is fixed by the pull rod in a straight way. The upper edge and the lower edge of the C-shaped plate are both in a eave shape, the upper end of a longitudinal tension spring hooks the upper edge of the C-shaped plate, the lower end of the longitudinal tension spring hooks the upper edge of the sliding plate, and the lower edge of the C-shaped plate extends below the upper edge of the sliding plate and is abutted to the angle plate on the sliding plate. One section of the upper surface of the pull rod is recessed from the other side, and a longitudinal pressure spring is arranged between the bottom of the section and a pipe plug at the upper end of the inner pipe, so that the pull rod is pressed downwards.

Because the potential safety hazard is thoroughly eliminated, the user can be adjusted at ease, and the adjustment is finished smoothly and instantly.

Drawings

FIG. 1 is a partial external view of a kit of parts according to the present invention.

Fig. 2 is an overall fan-out view of the assembly shown in fig. 1.

Fig. 3 is a perspective view of fig. 1 and 2 with parts broken away.

Fig. 4 is a perspective view of another kit assembly of the present invention. Some parts are not drawn with solid lines and the dotted lines indicate where they should be.

Fig. 5 is a perspective view of fig. 4 with parts broken away.

Fig. 6 to 8 are explanatory views of the operation principle of the components shown in fig. 4.

Names of reference symbols in the drawings: 1. the table top board comprises a table top board body, 2, an inner pipe body, 3, a cross bar, 4, an a damping cover, 41, an end cover, 411, a jack, 5, a b damping cover, 51, a plug sheet, 6, a base, 61, a bolt, 62, a slot, 7, a pull rod, 71, a rod tip, 711, a key, 8, a C-shaped board, 9, a tension spring, 10, a sliding board, 101, a corner board, 11, a pipe plug, 12, a compression spring, 13, an outer pipe, 14 and an inclined board.

Detailed Description

The specific structure and operation of the present invention will be further described with reference to the accompanying drawings.

The invention relates to a safety component of a top-speed adjustable table, which comprises two sets of components, wherein the two sets of components are respectively arranged on a cross rod between two back table legs of the adjustable table and in inner tubes of the front and back four table legs.

1. The assembly solves the problem of accidental downward rotation of the table top plate.

See fig. 1-3. A cross bar 3 is connected between the top ends of the inner tubes 2 of the two rear desk legs. The a damping cover 4 and the b damping cover 5 are folded from two sides of the cross rod 3 respectively to clamp the cross rod. The cross section and the longitudinal section of the damping cover 4 a and the damping cover 5 b are both in fan-ring shapes and are generally saddle-shaped. The two ends of the a damping cover 4 are provided with transverse end covers 41, the two sides of the end covers 41 are provided with insertion holes 411, and the two ends of the b damping cover 5 are provided with longitudinal insertion pieces 51. Two bases 6 are arranged at the back of the table board 1 corresponding to the two ends of the two damping covers. The two sides of the base 6 are provided with bolts 61 matched with the insertion holes 411, the middle of the base 6 is provided with a slot 62 matched with the inserting sheet 51, the middle of the damping cover 4 and the middle of the damping cover 5 are attached to the cross rod 3 in the installation process, the bolts 61 penetrate through the insertion holes 411, the inserting sheet 51 is inserted into the slot 62, and then nuts on the bolts 61 are screwed.

In fact, the nut is not completely screwed, the two ends of the damping cover are not in close contact with the cross rod, friction basically does not exist, the friction is concentrated on one section in the middle, and the damping cover is long enough, so that the contact area and the elastic limit are large enough, the abrasion is extremely small, and noise is avoided. These features are necessary for a desk.

2. The assembly solves the problem that the desktop plate accidentally falls down.

See fig. 4. A sliding plate 10 which is longitudinally arranged and clings to the pipe wall of the inner pipe 2 is arranged in the inner pipe 2 of the table leg, a fixed eave-shaped angle plate 101 is arranged on one section of the middle of the sliding plate 10, an inclined plate 14 with one higher end and one lower end is supported on the pipe wall of the outer pipe 13, and the higher end is supported in a negative angle below the angle plate 101. The upper edge of the sliding plate 10 is in a eave shape and is integrally positioned in the inner pipe 2. A longitudinal pull rod 7 is arranged above the sliding plate 10 in the inner tube 2, a rod tip 71 of the pull rod 7 is folded to 90 degrees and extends out from an opening at one side of the upper end of the inner tube 2, and the tail end of the pull rod is provided with a horizontal key 711. The lower section of the tie rod 7 is recessed from one side, on which a longitudinal plate with a C-shaped longitudinal section, here called C-shaped plate 8, is arranged. The middle section of the C-shaped plate 8 is fixed straight against the pull rod 7. The upper edge and the lower edge of the C-shaped plate 8 are both in a eave shape, the upper end of a longitudinal tension spring 9 hooks the upper edge of the C-shaped plate 8, the lower end of the longitudinal tension spring hooks the upper edge of the sliding plate 10, and the lower edge of the C-shaped plate 8 extends below the upper edge of the sliding plate 10 and abuts against the angle plate 101. The upper section of the pull rod 7 is recessed from the other side, and a longitudinal compression spring 12 is arranged between the bottom of the section and a pipe plug 11 at the upper end of the inner pipe 2, so that the pull rod 7 is pressed downwards.

The working principle of the set of components is explained from fig. 6 to fig. 8.

Fig. 6. As indicated by the arrows, the swash plate converts downward gravity into lateral pressing force to achieve positioning, which is the same as the prior art.

Fig. 7. Before the user adjusts the lifting, the positioning is released, namely the inclined plate is loosened. In the figure, it is not feasible to pinch the key, and although the tension spring is also pulled upwards, the tension is too small to pull the positioned inclined plate. The positioning is not released. This prevents accidental dropping due to erroneous operation.

Fig. 8. When the button is pinched and the upper end of the desk panel is simultaneously pressed, the downward gravity is not available, the transverse extrusion force is not available, the inclined plate is not fixed and is finally pulled up by the tension spring, the angle plate collides with the lower edge of the C-shaped plate almost at the same time, and an impact sound is generated, so that a user can know that the positioning is released after hearing the impact sound, and can safely adjust the button. At the moment, the table top plate is arranged at the positive end, hands do not need to be replaced, and the table top plate can be directly lifted and lowered to place, so that hands are scattered. The upper pressure spring is pressed, the assembly is reset instantly, and the positioning state of the figure 6 is returned.

Claims

1. The utility model provides a safe subassembly of adjustable table of utmost point speed, includes two sets of subassemblies, and one of them set of subassembly sets up in inner tube (2) of table leg, has a longitudinal slide (10) that pastes inner tube (2) pipe wall in inner tube (2), has a fixed scute (101) that is eaves form on one section in the middle of slide (10), and swash plate (14) low end that one end height one end is low supports on outer tube (13) pipe wall, and high end supports in the reentrant corner below scute (101), characterized in that: the upper edge of the sliding plate (10) is in a eave shape and is integrally positioned in the inner tube (2), a longitudinal pull rod (7) is arranged above the sliding plate (10) in the inner tube (2), a rod tip (71) of the pull rod (7) is folded to 90 degrees and extends out of an opening at one side of the upper end of the inner tube (2), a horizontal key (711) is arranged at the tail end, one section below the pull rod (7) is recessed from one side, a C-shaped plate (8) with a longitudinal section in a C shape is arranged on the section, one section in the middle of the C-shaped plate (8) is fixed by being directly attached to the pull rod (7), the upper edge and the lower edge of the C-shaped plate (8) are in an eave shape, the upper end of a longitudinal tension spring (9) hooks the upper edge of the C-shaped plate (8), the lower end of the tension spring hooks the upper edge of the sliding plate (10), the lower edge of the C-shaped plate (8) extends below the upper edge of the sliding plate (10) and abuts against the angle plate (101), a longitudinal compression spring (12) is arranged between the bottom of the section and a pipe plug (11) at the upper end of the inner pipe (2) and presses the pull rod (7) downwards.

2. Safety assembly for top speed adjustable tables according to claim 1, wherein another set of assemblies is placed on the cross bar (3) between the top ends of the inner tubes (2) of the two rear legs, characterized in that: a damping cover (4) and b damping cover (5) are respectively folded from two sides of a cross bar (3) to be clamped in, the cross section and the longitudinal section of the a damping cover (4) and the b damping cover (5) are both in a fan-ring shape and are generally in a saddle shape, two ends of the a damping cover (4) are provided with transverse end covers (41), two sides of each end cover (41) are provided with jacks (411), two ends of the b damping cover (5) are provided with longitudinal insertion pieces (51), two bases (6) are arranged at positions corresponding to two ends of the two damping covers on the back surface of the table top plate (1), two sides of each base (6) are provided with bolts (61) matched with the jacks (411), the middle of each insertion piece (51) is provided with a slot (62) matched with the insertion pieces (51), the middle of the a damping cover (4) and the middle of the b damping cover (5) are attached to the cross bar (3) during installation, the bolts (61) penetrate through the jacks (411), and the insertion pieces (51, the nut on the bolt (61) is then tightened.