CN218355064U

CN218355064U - Extension table

Info

Publication number: CN218355064U
Application number: CN202222505838.9U
Authority: CN
Inventors: 朱铖
Original assignee: Changzhou Egger Smart Office Technology Co ltd
Current assignee: Changzhou Egger Smart Office Technology Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-01-24
Anticipated expiration: 2032-09-21

Abstract

The utility model relates to a desk of daily work, study and life use, especially, increase the extension table of table usable floor area, overcome current extension table and can't lock when drawing in, the inconvenient and not high shortcoming of stability of operation, the main tributary stay tube that supports the main table and the vice stay tube that supports vice table are articulated by the pin at both ends, the main tributary stay tube is equipped with the lock pole hole that passes long locking lever, it has the contraction section to distribute on the long locking lever, be equipped with the arc through groove around the pinhole axis on the vice stay tube arm lock, arc through groove width is greater than the contraction section diameter and is less than the non-contraction section external diameter, arc through groove one end intercommunication can overlap the first lockhole at non-contraction section department, the other end intercommunication can overlap the second lockhole at non-contraction section department or connect and can support the backstop at non-contraction section, when long locking bar moves and is in the release position, the contraction section is in the arc through groove and makes vice stay tube swing; when the long lock rod is in the locking position, the non-contraction section is in the first lock hole or the second lock hole or outside the lock catch, so that the auxiliary support tube is locked.

Description

Extension table

Technical Field

The utility model relates to a desk used in daily work, study and life, in particular to an extension desk capable of increasing the using area of a desk board.

Background

Extension table has main table and vice table, uses main table and vice table to combine when needing to increase usable floor area, and current extension table generally is that vice table and main table articulate and link and combine triangle mechanism to lock, and the shortcoming of this type of desk is: firstly, the triangular supporting mechanism for locking is complicated in structure, and when the table plate is unfolded, a lower part of the triangular supporting mechanism is obviously protruded, so that the whole table plate is not beautiful enough; secondly, although the foldable table has a locking function after being unfolded, the foldable table is not provided with a locking structure, so that the auxiliary table board has the risk of shaking and potential safety hazards; thirdly, the unfolding process is still slightly troublesome; fourthly, two spaced triangular support mechanisms only form two-point support, and the auxiliary table plate is not stable enough to be fixed on the main table plate when in use.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the extension table overcomes the defects that the existing extension table cannot be locked when being folded, is inconvenient to operate, has low stability and the like.

The utility model provides a technical scheme that its technical problem adopted is: an extension table comprises a main table board and an auxiliary table board,

the table comprises a main supporting pipe for supporting a main table plate and an auxiliary supporting pipe for supporting an auxiliary table plate, wherein the main supporting pipe and the auxiliary supporting pipe are respectively divided into two parallel pipes at intervals, and the ends of the main supporting pipe and the auxiliary supporting pipe are hinged by pins;

the cross section of the main supporting pipe is rectangular, the pin penetrates through the opposite pipe walls on the two sides of the main supporting pipe, two ends of the pin are provided with outward extending sections, the auxiliary supporting pipe extends out of two clamping arms for clamping the main supporting pipe, and the clamping arms are provided with pin holes sleeved on the pin extending sections;

the long lock rod is provided with a long lock rod, the axis of the long lock rod is parallel to the axis of a column pin, lock rod holes penetrating through the long lock rod are formed in the thickness direction of the two main support tubes, four contraction sections with circular cross sections are distributed on the long lock rod, every two contraction sections distributed on the long lock rod are divided into one group, the distance between each group of contraction sections is equal to the distance between the two main support tubes, the length of a non-contraction section clamped between the contraction sections in each group is equal to the distance between the two clamp arms on the auxiliary support tube, and the length of the contraction section is not less than the thickness of the clamp arms;

an arc-shaped through groove which is wound around the axis of the pin hole is arranged on the clamping arm, the width of the arc-shaped through groove is larger than the diameter of the contraction section and smaller than the outer diameter of the non-contraction section on the long lock rod, one end of the arc-shaped through groove is communicated with a first lock hole which can be sleeved on the non-contraction section of the long lock rod, and the other end of the arc-shaped through groove is communicated with a second lock hole which can be sleeved on the non-contraction section of the long lock rod or is connected with a lock stopper which can be propped against the non-contraction section of the long lock rod;

two positions where the long locking rod moves in the locking rod hole in a reciprocating mode are a locking position for locking the auxiliary table plate in an extending or folding state and a release position for allowing the state of the auxiliary table plate to change respectively, and when the long locking rod is at the release position, the contraction section is located in the clamping arm arc through groove in the outer wall of the main supporting tube so that the auxiliary supporting tube is allowed to swing; when the auxiliary table plate needs to be locked after being extended or folded, the long locking rod is in a locking position, and the non-contraction section of the long locking rod is located in the first locking hole or the second locking hole of the clamping arm or outside the lock catch, so that the auxiliary supporting tube is locked.

In order to facilitate the determination of the long locking rod to the locking position or the releasing position, at least one limiting piece is fixed on the long locking rod, and the long locking rod which reciprocates is positioned at the locking position and the releasing position respectively by the contact positioning of the limiting piece and the pipe wall of the main supporting pipe and/or the clamping arm.

In order to facilitate the operation of personnel and make long locking lever can be in latched position all the time when no external force action, the cover is equipped with at least one reset spring on the long locking lever, reset spring is located main supporting tube, and reset spring's one end promotes long locking lever and maintains latched position, the other end pushes up on the inner wall of main supporting tube all the time under no external force action.

Specifically, one end of the long lock rod is provided with a pressing part or the other end of the long lock rod is provided with a pulling part.

Specifically, the cross-sectional shape of the non-contracting section of the long locking bar is circular.

Alternatively, the cross-sectional shape of the non-constricted section of the long locking bar is square.

In order to prevent impurities from entering the main support tube, affecting the use of the extension member, and also to beautify the product, the mouth of the hinged end of the main support tube is provided with a cover.

The utility model has the advantages that:

1. the structure that the main table board and the auxiliary table board of the existing extension table are connected through the hinge piece is changed into the structure that the main support pipe and the auxiliary support pipe are hinged, and the table board is fixed on the support pipes, so that the extension table can provide larger bearing capacity and is suitable for extension tables with larger areas;

2. the extension table of the utility model adopts a linear structure, the structure is more compact, and after the extension table is opened, no redundant support structure is arranged below the table plate;

3. the extension table of the utility model is provided with the locking structure when being opened and folded, thereby preventing the auxiliary table plate from shaking and reducing the potential safety hazard;

4. the utility model has 4 stress points distributed on the extension table, which has better stability;

5. the operation can be easily performed by a single person with both hands.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is an exploded view of the structure of the present invention;

FIG. 2 is a view of the long locking lever in a locked position on the main support tube;

FIG. 3 is a schematic view of the locking mechanism locking the secondary support tube to the primary support tube when the long locking bar is in the locked position;

FIG. 4 is a schematic view of the elongated lock bar in a locked position to extend the locking of the secondary support tube to the primary support tube;

FIG. 5 is a view of the elongated locking bar in a release position on the main support tube;

FIG. 6 is a schematic view of the secondary support tube swinging on the primary support tube with the long lock bar in the release position.

In the figure: 1. a main table board;

2. an auxiliary table plate;

3. a main supporting pipe 3-1, a lock rod hole;

4. 4-1 part of auxiliary supporting tube, 4-2 parts of clamping arm, 4-3 parts of pin hole, 4-4 parts of arc through groove, 4-4 parts of first lock hole, 4-5 parts of lock block;

5. a pin 5-1, an extension section;

6. a long lock rod 6-1, a contraction section 6-2 and a pressing part;

7. a limiting member;

8. a return spring;

9. and (7) sealing the cover.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings, which are simplified and schematic illustrations of the basic structure of the invention, and preferred embodiments, and which therefore show only the elements relevant to the invention.

An extension table as shown in figure 1, which comprises a main table board 1 and an auxiliary table board 2, and is provided with a main supporting pipe 3 for supporting the main table board 1 and an auxiliary supporting pipe 4 for supporting the auxiliary table board 2, wherein the main supporting pipe 3 and the auxiliary supporting pipe 4 are respectively divided into two parallel branches at intervals, the main supporting pipe 3 and the auxiliary supporting pipe 4 are hinged by a pin 5 at the end parts of the two branches, the two branches at intervals of the main supporting pipe 3 and the auxiliary supporting pipe 4 are in a structure with a pair of parallel hinges at the hinged part of the two branches, and do not necessarily need to be parallel on the whole supporting pipe, and the length shape of the supporting pipe is determined by the table board;

the cross section of the main supporting tube 3 is rectangular, a pin 5 penetrates through the opposite tube walls of the two sides of the main supporting tube 3, two ends of the pin are provided with outward extending sections 5-1, two clamping arms 4-1 for clamping the main supporting tube 3 extend out of the auxiliary supporting tube 4, and pin holes 4-2 sleeved on the extending sections 5-1 of the pin 5 are formed in the clamping arms 4-1;

the long locking rod 6 is provided with a long locking rod 6 with an axis parallel to the axis of a pin 5, locking rod holes 3-1 for allowing the long locking rod 6 to penetrate through are formed in the thickness direction of the two main supporting tubes 3, with reference to the attached drawing 5, four contracting sections 6-1 with circular cross sections are distributed on the long locking rod 6, every two of the distributed contracting sections 6-1 are divided into one group, the distance between each group of contracting sections 6-1 is equal to the distance between the two main supporting tubes 3, the length of a non-contracting section clamped between the two contracting sections 6-1 in each group is equal to the distance between the two clamping arms 4-1 on the auxiliary supporting tube 4, the non-contracting section refers to the rest part of the long locking rod 6 with the outer diameter larger than the contracting section 6-1, the length of the contracting section 6-1 is not smaller than the thickness of the clamping arms 4-1, and the length of the contracting section 6-1 only needs to be slightly larger than the thickness of the clamping arms 4-1, so that the clamping arms 4-1 can contract the section 6-1;

referring to fig. 3 and 4, an arc through groove 4-3 is arranged on the clamping arm 4-1 and surrounds the axis of the pin hole 4-2, the groove width of the arc through groove 4-3 is larger than the diameter of the contraction section 6-1 and smaller than the outer diameter of the non-contraction section of the long locking rod 6, one end of the arc through groove 4-3 is communicated with a first locking hole 4-4 which can be sleeved on the non-contraction section of the long locking rod 6, and the other end of the arc through groove 4-3 is connected with a lock catch 4-5 which can be propped against the non-contraction section of the long locking rod 6;

two positions where the long lock rod 6 moves in the lock rod hole 3-1 in a reciprocating manner are a locking position for locking the auxiliary table board 2 in an extending or retracting state and a releasing position for allowing the state of the auxiliary table board 2 to change respectively, and when the long lock rod 6 is in the releasing position, as shown in fig. 5 and 6, the contraction section 6-1 is positioned in the arc-shaped through groove 4-3 of the clamping arm 4-1 on the outer wall of the main support pipe 3, so that the auxiliary support pipe 4 is allowed to swing; when the auxiliary table board 2 needs to be locked after being extended or folded, the long locking rod 6 is in a locking position, as shown in fig. 2, 3 and 4, a non-contraction section of the long locking rod 6 is located in the first locking hole 4-4 of the clamping arm 4-1 or outside the locking block 4-5, so that the auxiliary supporting tube is locked, the locking block 4-5 is an integrally extended part on the clamping arm 4-1, and the extended length ensures that the auxiliary table board 2 is in an extended position when the locking block 4-5 abuts against the non-contraction section.

As shown in fig. 2 and 5, three limiting members 7 are fixed on the long lock rod 6, the three limiting members 7 are respectively in contact with the tube wall of the main support tube 3 and/or the clamp arm 4-1 to position the long lock rod 6 which moves back and forth so that the long lock rod 6 is positioned at the locking position and the releasing position, two return springs 8 are sleeved on the long lock rod 6, the return springs 8 are respectively positioned in the two main support tubes 3, one end of each return spring 8 pushes the long lock rod 6 to be maintained at the locking position without external force, the other end of each return spring always abuts against the inner wall of the main support tube 3, two of the three limiting members 7 are also respectively arranged in the main support tube 3, and the two limiting members 7 also serve as a force applying member for pushing the long lock rod 6 by the return springs 8.

As shown in FIG. 2, one end of the long locking bar 6 is provided with a pressing portion 6-2, and the other end of the long locking bar can also be provided with a pulling portion, wherein the pressing portion 6-2 or the pulling portion is arranged at one end convenient for a person to operate.

The cross-sectional shape of the long locking bar 6 at the non-constricted section is circular or square, in the form of a circle as shown in the drawings.

A closure cap 9 is provided at the mouth of the hinged end of the main support tube 3.

The utility model discloses during the use, operating personnel one hand promotes long locking lever 6 to release position, the vice table of the other hand swing 2 to drawing in or the state of extending in, loosens long locking lever 6 to latched position again, and vice table is fixed promptly and is drawn in or the position of extending in.

While only the embodiments of the present invention have been described in the above specification, various examples do not limit the spirit of the present invention, and those skilled in the art can modify or modify the embodiments described above without departing from the spirit and scope of the present invention, such as disposing the structure of the main support tube on the auxiliary support tube and the structure of the auxiliary support tube on the main support tube in the solution.

Claims

1. The utility model provides an extension table, includes main table and vice table, characterized by:

the cross section of the main supporting pipe is rectangular, the pin penetrates through the opposite pipe walls on the two sides of the main supporting pipe, the two ends of the pin are provided with outward extending sections, the auxiliary supporting pipe extends out of two clamping arms for clamping the main supporting pipe, and the clamping arms are provided with pin holes sleeved on the pin extending sections;

the two positions where the long lock rod moves in the lock rod hole in a reciprocating mode are a locking position for locking the auxiliary table plate in an extending or folding state and a releasing position for allowing the state of the auxiliary table plate to change respectively, and when the long lock rod is at the releasing position, the contraction section is located in the clamping arm arc-shaped through groove in the outer wall of the main support pipe so that the auxiliary support pipe is allowed to swing; when the auxiliary table plate needs to be locked after being extended or folded, the long locking rod is in a locking position, and the non-contraction section of the long locking rod is located in the first locking hole or the second locking hole of the clamping arm or outside the lock catch, so that the auxiliary supporting tube is locked.

2. An extended table according to claim 1, wherein: at least one limiting piece is fixed on the long lock rod, and the long lock rod which moves in a reciprocating mode is located at a locking position and a releasing position respectively through the contact location of the limiting piece and the pipe wall of the main supporting pipe and/or the clamping arm.

3. An extension table according to claim 1, wherein: the long lock rod is sleeved with at least one reset spring, the reset spring is positioned in the main support pipe, one end of the reset spring pushes the long lock rod to be maintained at a locking position under the action of no external force, and the other end of the reset spring always props against the inner wall of the main support pipe.

4. An extension table according to claim 1, wherein: one end of the long lock rod is provided with a pressing part or the other end of the long lock rod is provided with a pulling part.

5. An extended table according to claim 1, wherein: the cross-sectional shape of the non-constricted section of the long locking bar is circular.

6. An extension table according to claim 1, wherein: the cross section of the non-contraction section of the long locking rod is square.

7. An extension table according to claim 1, wherein: and a sealing cover is arranged at the opening part of the hinged end of the main supporting pipe.