CN219306247U - Adjustable limiting structure and dining table expansion frame thereof - Google Patents

Abstract

The utility model provides an adjustable limiting structure and a dining table expansion frame thereof, wherein the limiting structure comprises a limiting angle code and an adjusting piece, an adjusting piece is arranged between the limiting angle code and the adjusting piece, the adjusting piece can relatively move up and down relative to the limiting angle code through the adjusting piece and is fixed on the limiting angle code, and when a pulley is at a first position of the limiting angle code, the adjusting piece moves downwards through the adjusting piece, so that the adjusting piece is matched with the pulley to limit the pulley to shake on the adjusting piece. Specifically, the regulating plate can be adjusted on spacing angle sign indicating number to the cooperation pulley prevents to lead to the pulley to appear the problem of tolerance clearance at spacing angle sign indicating number because of the assembled mode, in order to restrict the pulley to rock on the regulating plate, its convenient assembling, difficult production is rocked after the installation, ensures the normal use of dining table.

Description

Adjustable limiting structure and dining table expansion frame thereof

Technical Field

The utility model relates to the technical field of dining tables, in particular to an adjustable limiting structure and a dining table expansion frame thereof.

Background

The dining table is one of the common furniture of most families, traditional desk structure comprises supporting leg and desktop, and the structure is comparatively simple, and when many people are in time, can't change the size of desktop according to the user demand of number, and the few people, the desktop is great, consequently, the table of collapsible dining table appears in the prior art, including main desktop and the extension desktop of setting in main desktop left and right sides, be equipped with expansion structure between main desktop and the extension desktop, when folding, expansion desktop is accomodate in main desktop bottom through expansion structure, and when expanding, expansion desktop is through expansion structure expansion and main desktop parallel and level.

With the rise of electronic commerce, people often purchase an expandable dining table on the internet, sellers send parts such as a main tabletop, an expanded structure and the like to users, and then the users assemble the dining table by themselves, as shown in fig. 4 and 5 in the attached drawings of the specification, 1' is an angle code, 2' is a lifting frame, 3' pulleys and 4' bases, during assembly, the angle code 1' is fixedly arranged on the bases 4', the lifting frame 2' is provided with the pulleys 3', the angle code 1' is provided with sliding grooves 5' matched with the pulleys 3', the lifting frame 2' drives the pulleys 3' to slide along the sliding grooves 5' of the angle code 1', the pulleys 3' are arranged at limiting parts of the sliding grooves 5', so that the expanded tabletop is in a fully expanded state, but because the users assemble the dining table by themselves, gaps exist among the components or gaps generated by long-term abrasion are caused to be in the fully expanded state, when the pulleys 3' are positioned at the middle positions of the sliding grooves 5', the tabletop is easy to shake, a plurality of parts are easy to detach during adjustment, the adjustment is needed, the positions of the user need to be required to be in a large gap, and a proper adjustment position is required to be observed, and a proper time is not needed, and the method is easy to take place.

Therefore, further improvements are needed.

Disclosure of Invention

Based on the above, the utility model aims to provide an adjustable limiting structure and a dining table expansion frame thereof, which overcome the defects in the prior art, and the limiting structure solves the problem that the pulley has a tolerance gap at a limiting angle code due to an assembly mode, is convenient to assemble, and is not easy to shake after being installed, so that the dining table is ensured to be normally used.

According to the adjustable limit structure of this purpose design, limit structure includes limit angle sign indicating number and regulating plate, limit angle sign indicating number with be equipped with the regulating part between the regulating plate, the regulating plate passes through the regulating part can be relative limit angle sign indicating number reciprocates and fix on the limit angle sign indicating number, wherein, the pulley is in when the first position of limit angle sign indicating number, the regulating plate passes through the regulating part downward displacement makes the regulating plate with the pulley cooperation is in order to restrict the pulley rocks on the regulating plate.

The limiting angle code comprises a first connecting plate, an adjusting hole is formed in the first connecting plate, a mounting hole is formed in the adjusting piece, the adjusting piece can move relative to the adjusting hole through the mounting hole, and the adjusting piece passes through the adjusting hole and is fixedly connected with the mounting hole so as to realize that the adjusting piece is fixedly arranged on the first connecting plate; or, be equipped with the mounting hole on the first connecting plate, be equipped with the regulation hole on the regulating plate, the regulating plate passes through the regulation hole can be relative the mounting hole displacement, the regulating part pass behind the regulation hole with mounting hole fastening connection, in order to realize the regulating plate is fixed to be set up on the first connecting plate.

The adjusting piece is a screw.

The adjusting piece is provided with a dent matched with the circumference of the pulley.

The first connecting plate is provided with a chute matched with the pulley, the chute comprises an opening, a sliding section and a limiting part which are communicated, and the pulley can enter the sliding section from the opening and is positioned on the limiting part along the sliding section.

When the pulley is positioned on the sliding section, the regulating piece is downwards displaced so as to enable the concave part to be matched with the circumferential part; when the pulley is located at the limiting part, the adjusting piece moves upwards and is flush with or far away from the limiting part.

The chute is arc-shaped.

The adjusting holes are in a strip shape, square shape, semicircular shape or special shape.

The utility model provides a dining table extension frame, includes the base, be equipped with on the base adjustable limit structure, limit angle sign indicating number still includes the second connecting plate, the second connecting plate pass through the fastener with base fixed connection, in order to realize limit angle sign indicating number fixed mounting is in on the base.

The dining table expansion frame further comprises a lifting frame, and the pulley is fixedly arranged at one end of the lifting frame.

The adjustable limiting structure comprises a limiting angle code and an adjusting piece, wherein an adjusting piece is arranged between the limiting angle code and the adjusting piece, the adjusting piece can relatively move up and down through the adjusting piece and is fixed on the limiting angle code, and when the pulley is at a first position of the limiting angle code, the adjusting piece moves downwards through the adjusting piece, so that the adjusting piece is matched with the pulley to limit the pulley to shake on the adjusting piece. Specifically, the regulating plate can be adjusted on spacing angle sign indicating number to the cooperation pulley prevents to lead to the pulley to appear the problem of tolerance clearance at spacing angle sign indicating number because of the assembled mode, in order to restrict the pulley to rock on the regulating plate, its convenient assembling, the difficult production of installation back pulley rocks, ensures the normal use of dining table.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a front view of a limiting structure according to an embodiment of the utility model.

Fig. 2 is a cross-sectional view of a limiting structure according to an embodiment of the utility model.

Fig. 3 is a schematic diagram of an exploded structure of a limiting structure, a base and a lifting frame according to an embodiment of the present utility model.

Fig. 4 and 5 are prior art structural schematic diagrams.

The correspondence between the reference numerals and the component names in fig. 1 to 3 is:

1-limit angle, 101-first connecting plate, 1011-chute, 10111-opening, 10112-sliding section, 10113-limit part, 102-second connecting plate, 2-adjusting piece, 201-recess, 3-adjusting piece, 4-pulley, 401-circumference part, 5-adjusting hole, 6-mounting hole, 7-base, 8-lifting frame.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

As shown in fig. 1-3, an adjustable limiting structure and a dining table expansion frame thereof are provided, the limiting structure comprises a limiting angle code 1 and an adjusting piece 2, an adjusting piece 3 is arranged between the limiting angle code 1 and the adjusting piece 2, the adjusting piece 2 can relatively move up and down relative to the limiting angle code 1 through the adjusting piece 3 and is fixed on the limiting angle code 1, wherein when a pulley 4 is at a first position of the limiting angle code 1, the adjusting piece 2 moves downwards through the adjusting piece 3, so that the adjusting piece 2 is matched with the pulley 4 to limit the pulley 4 to shake on the adjusting piece 2.

Specifically, the adjusting piece 2 can be adjusted on the limiting angle code 1 to cooperate with the pulley 4, prevent to lead to the pulley 4 to appear the problem of tolerance clearance at the limiting angle code 1 because of the assembled mode, in order to restrict the pulley 4 to rock on the adjusting piece 2, its convenient assembling, the difficult production of pulley 4 rocks after the installation, ensures the normal use of dining table.

Further, as shown in fig. 2 and 3, the positioning angle code 1 includes a first connecting plate 101, an adjusting hole 5 is provided on the first connecting plate 101, a mounting hole 6 is provided on the adjusting plate 2, the adjusting plate 2 can move relative to the adjusting hole 5 through the mounting hole 6, and the adjusting member 3 passes through the adjusting hole 5 and is fixedly connected with the mounting hole 6, so as to fix the adjusting plate 2 on the first connecting plate 101; or, be equipped with mounting hole 6 on the first connecting plate 101, be equipped with regulation hole 5 on the regulating plate 2, but the regulating plate 2 passes through the relative mounting hole 6 displacement of regulation hole 5, and regulating part 3 passes behind the regulation hole 5 with mounting hole 6 fastening connection to realize that regulating plate 2 is fixed to be set up on first connecting plate 101.

Preferably, the first connecting plate 101 is provided with an adjusting hole 5, the adjusting piece 2 is provided with a mounting hole 6, when the pulley 4 is at the first position of the limiting angle code 1, the adjusting piece 2 is downwards displaced by a hand or a tool, so that the adjusting piece 2 is matched with the pulley 4, and the adjusting piece 3 passes through the adjusting hole 5 and is fixedly connected with the mounting hole 6, so that the adjusting piece 2 is fixedly arranged on the first connecting plate 101.

It should be noted that the adjusting plate 2 is fixedly mounted on the rear sidewall of the first connecting plate 101, so that the layout is more attractive

Further, the adjusting member 3 is a screw.

Further, as shown in fig. 2 and 3, the regulating piece 2 is provided with a recess 201 which is fitted to the circumferential portion 401 of the pulley 4.

Specifically, the recess 201 cooperates with the circumferential portion 401 of the pulley 4 to limit the pulley 4 from rocking on the adjustment plate 2.

Further, as shown in fig. 1 and 3, the first connecting plate 101 is provided with a sliding groove 1011 matching with the pulley 4, the sliding groove 1011 includes an opening 10111, a sliding section 10112 and a limiting portion 10113, and the pulley 4 can enter the sliding section 10112 from the opening 10111 and be positioned on the limiting portion 10113 along the sliding section 10112.

Further, as shown in fig. 1 and 3, when the pulley 4 is positioned at the sliding section 10112, the regulating piece 2 is displaced downward so that the recess 201 is engaged with the circumferential portion 401; when the pulley 4 is located at the limiting portion 10113, the adjusting piece 2 is displaced upward and is flush with or far away from the limiting portion 10113.

Specifically, when the pulley 4 is located at the limiting portion 10113, the adjusting plate 2 is displaced upward and is flush with or far away from the limiting portion 10113, so that the pulley 4 is prevented from sliding onto the limiting portion 10113 by the adjusting plate 2 when the pulley 4 is located at the limiting portion 10113.

Further, the chute 1011 is arc-shaped.

Further, the adjusting hole 5 is in a strip shape, square shape, semicircular shape or special shape.

Further, as shown in fig. 1-3, the dining table expansion frame comprises a base 7, an adjustable limiting structure is arranged on the base 7, the limiting angle code 1 further comprises a second connecting plate 102, and the second connecting plate 102 is fixedly connected with the base 7 through a fastener so as to realize that the limiting angle code 1 is fixedly installed on the base 7.

Further, as shown in fig. 3, the dining table expansion frame further comprises a lifting frame 8, and the pulley 4 is fixedly arranged on one end of the lifting frame 8.

Further, a limit structure for dining table extension frame, including base 7 and crane 8, be equipped with pulley 4 on the crane 8 one end, be equipped with limit structure on the base 7, limit structure includes limit angle sign indicating number 1 and regulating plate 2, be equipped with regulating part 3 between limit angle sign indicating number 1 and the regulating plate 2, regulating plate 2 can relatively limit angle sign indicating number 1 upper and lower displacement and fix on limit angle sign indicating number 1 through regulating part 3, wherein, pulley 4 when limit angle sign indicating number 1's first position, regulating plate 2 passes through regulating part 3 downward displacement, makes regulating plate 2 and pulley 4 cooperate to restriction pulley 4 rocks on regulating plate 2.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

It will be further understood that when interpreting the connection or positional relationship of elements, although not explicitly described, the connection and positional relationship are to be interpreted as including the range of errors that should be within an acceptable range of deviations from the particular values as determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, and is not limited herein.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. An adjustable limit structure, its characterized in that: limit structure includes limit angle sign indicating number (1) and regulating plate (2), limit angle sign indicating number (1) with be equipped with regulating part (3) between regulating plate (2), regulating plate (2) pass through regulating part (3) can be relative limit angle sign indicating number (1) displacement from top to bottom is fixed on limit angle sign indicating number (1), wherein, pulley (4) are in when the first position of limit angle sign indicating number (1), regulating plate (2) pass through regulating part (3) downward displacement makes regulating plate (2) with pulley (4) cooperation, in order to restrict pulley (4) are rocked on regulating plate (2).

2. The adjustable stop structure of claim 1, wherein: the limiting angle code (1) comprises a first connecting plate (101), an adjusting hole (5) is formed in the first connecting plate (101), a mounting hole (6) is formed in the adjusting piece (2), the adjusting piece (2) can move relative to the adjusting hole (5) through the mounting hole (6), and the adjusting piece (3) passes through the adjusting hole (5) and is fixedly connected with the mounting hole (6) so as to realize that the adjusting piece (2) is fixedly arranged on the first connecting plate (101); or, be equipped with mounting hole (6) on first connecting plate (101), be equipped with regulation hole (5) on regulating plate (2), regulating plate (2) are through regulation hole (5) can be relative mounting hole (6) displacement, regulating part (3) pass behind regulation hole (5) with mounting hole (6) fastening connection, in order to realize regulating plate (2) are fixed to be set up on first connecting plate (101).

3. The adjustable stop structure of claim 2, wherein: the adjusting piece (3) is a screw.

4. The adjustable stop structure of claim 2, wherein: the adjusting piece (2) is provided with a recess (201) matched with the circumference part (401) of the pulley (4).

5. The adjustable stop structure of claim 4, wherein: the first connecting plate (101) is provided with a sliding groove (1011) matched with the pulley (4), the sliding groove (1011) comprises an opening (10111), a sliding section (10112) and a limiting part (10113) which are communicated, and the pulley (4) can enter the sliding section (10112) from the opening (10111) and be positioned on the limiting part (10113) along the sliding section (10112).

6. The adjustable stop structure of claim 5, wherein: when the pulley (4) is positioned on the sliding section (10112), the adjusting piece (2) is displaced downwards so that the recess (201) is matched with the circumference part (401); when the pulley (4) is located at the limiting part (10113), the adjusting piece (2) is upwards displaced and is flush with or far away from the limiting part (10113).

7. The adjustable stop structure of claim 5, wherein: the sliding groove (1011) is arc-shaped.

8. The adjustable stop structure of claim 2, wherein: the adjusting hole (5) is in a strip shape, square shape, semicircular shape or special shape.

9. Dining table extension frame, including base (7), its characterized in that: the adjustable limiting structure of claim 1 is arranged on the base (7), the limiting angle code (1) further comprises a second connecting plate (102), and the second connecting plate (102) is fixedly connected with the base (7) through a fastener so as to realize that the limiting angle code (1) is fixedly installed on the base (7).

10. The dining table extension as recited in claim 9, wherein: the dining table expansion frame further comprises a lifting frame (8), and the pulley (4) is fixedly arranged at one end of the lifting frame (8).

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