CN201290433Y - Folding table structure - Google Patents

Abstract

The utility model provides a structure of folding table mainly comprises a table, an at least mechanism of folding into and a pair of table foot, wherein the mechanism of folding into further includes a shell subject, an at least rotatory block subassembly and a pair of fixed pedestal, wherein, fixed pedestal can registrate and be fixed in on the table foot, and the shell subject sets up between two fixed pedestals, rotatory block subassembly sets up between shell subject and fixed pedestal, and can combine fixedly between shell subject and rotatory block subassembly and fixed pedestal, has a rotatory piece of activity to rotate and fix at specific angular position block in rotatory block subassembly, the one end of the rotatory piece of activity combines fixedly with the bottom of table. The utility model discloses be convenient for fast assembly, dismantlement still help transportation and storage. And has better operation safety, can greatly improve the design texture of the product, and has the advantages of improving the product delicacy and commercial profit.

Description

A folding table structure

technical field

The utility model relates to a table, in particular to a folding table structure.

Background technique

In the furniture industry, although the structure of the folding table is relatively complicated and the price is relatively high, because the folding table can be folded when not in use to reduce the occupied space and achieve the advantages of convenient storage and storage, it still occupies a considerable share in the entire market. proportional market. Currently, the folding tables sold in the market have various structural designs to suit the needs of different users. Figure 1 is a folding table A that is quite common in the market and is relatively cheap at the same time. It is mainly composed of a table board B and a group of movable table legs C that can be opened and folded. However, although the aforementioned folding table A has the advantages of simple structure and fast folding, since the movable table leg C responsible for folding does not have any design of a safe and fixed structure, that is to say, the folding table A can be used even if it is used. It still belongs to the situation that the folded state is unstable, so if the user accidentally presses the folded side of the table B, the folded table A will be rotated and folded. Collision with the movable table leg C will also cause the folding table A to be quickly folded, and the movable table leg C may be pinched or bruised if it is light, or the child may be caught by the movable table leg C due to the inability to turn over and break free. Live by suffocation. So far, there have been several similar cases, which not only broke many families, but also caused pain that many parents will never forget.

In view of the lack of the aforementioned simple folding table, there are many folding tables with safety tenons or fixed structures researched and released by industry operators and patent applications are approved, such as No. 99202371.8 (folding table), No. 98223352.3 (folding table) Foot structure), No. 00237985.6 (foldable table), No. 99257991.0 (foldable table), No. 99253501.8 (multi-variable foldable table group tripod), No. 00265959.X (foldable table), No. 02201330.X (foldable table Stand positioning device for table), No. 01217760.1 (folding table), No. 02255171.3 (footstand for folding table), No. 01270249.8 (folding table structure), No. 01228539.0 (folding table) and No. 01219890.0 (folding table tripod) and so on.

However, although the above-mentioned folding tables with different structural designs have a safety buckle structure, they can solve the lack of instability in the folding state of existing products. However, it can still be easily found by looking at the structures of these different designs that no matter how the design is engaged, all the supporting and interlocking structures are exposed, which not only affects the aesthetic feeling of the appearance (especially emphasizing the high textured design furniture), and the actuating structure will produce relative displacement in the process of folding, and accidents that may pinch the user if one is not careful. In addition, the existing folding structure is combined and fixed with the table top and the table legs respectively, so the relative assembly and disassembly are very cumbersome and complicated, therefore, it will also cause inconvenience and trouble in transportation and assembly. Therefore, how to solve the problems of poor appearance, inconvenient disassembly and insufficient safety of existing folding tables has become a problem that manufacturers want to solve urgently.

Contents of the invention

The main purpose of the utility model is to provide a foldable table structure, which makes the disassembly and assembly easier by modularizing the foldable mechanism, and has the effect of convenient storage and transportation.

The secondary purpose of the utility model is to provide a foldable table structure, in which the foldable mechanism is modularized and becomes an independent component, which can effectively reduce the use safety in the process of opening and closing.

Another object of the present utility model is to provide a folding table structure, wherein the folding mechanism is modularized and becomes an independent component, which can make the overall appearance more concise and beautiful, thereby greatly improving the texture and value of the product feel.

Another object of the present utility model is to provide a foldable table structure, wherein, by modularizing the foldable mechanism and designing it as an independent component, the foldable mechanism of the present utility model can be used in conjunction with table legs of various shapes , with richer and more flexible changes.

Another object of the present utility model is to provide a foldable table structure, wherein the foldable mechanism of the present utility model can be used alone on a foldable table, or can be respectively arranged on both sides of the foldable table and connected to each other through a control rod. The user can control the rotation from any side.

To achieve the above-mentioned purpose, the utility model provides a folding table structure, which includes a table board, at least one folding mechanism and a pair of table legs, wherein the folding mechanism further includes a shell main body, at least one rotating engaging component and A pair of fixed bases, the fixed bases are fitted and fixed on the table legs, the main body of the housing is arranged between the two fixed bases, and the rotating engagement assembly is arranged between the main body of the housing and the fixed base. Between the seats, the housing main body, the rotating engagement assembly and the fixed seat are combined and fixed. There is a movable rotating block in the rotating engaging assembly, and the movable rotating block can rotate and rotate at a specific position. The angular position is locked and fixed, and one end of the movable rotating block is combined and fixed with the bottom of the table.

Compared with the prior art, the folding table structure described in the utility model modularizes the entire engaging and releasing mechanism into a folding mechanism, which is not only convenient for quick assembly and disassembly, but also convenient for transportation and storage. Moreover, the design of the utility model completely hides all the engaging and releasing mechanisms in the entire folding mechanism, which not only makes it have better operational safety, but also can greatly improve the design texture of the product, and has the potential to improve product delicacy and commercial profits. advantage.

Description of drawings

Fig. 1 is a schematic diagram of the appearance of a conventional folding table.

Fig. 2 is a three-dimensional exploded view of the utility model.

Fig. 3 is a three-dimensional combined appearance view of the utility model.

Fig. 4A is a schematic diagram of a radial cross-section of the rotary engagement assembly in the present invention (the table is in an open and fixed state).

Fig. 4B is a schematic axial cross-sectional view of the rotary engagement assembly in the present invention (the table is in an open and fixed state).

Fig. 5A is a schematic radial cross-sectional view of the rotary engagement assembly of the present invention (the table is in a rotatable state).

Fig. 5B is a schematic axial cross-sectional view of the rotary engagement assembly in the present invention (the table is in a rotatable state).

Fig. 6A is a schematic diagram of a radial cross-section of the rotary engagement assembly of the present invention (the table is in a folded and fixed state).

Fig. 6B is a schematic axial cross-sectional view of the rotary engagement assembly in the present invention (the table is in a folded and fixed state).

Fig. 7A is a partially exploded perspective view of the utility model.

Fig. 7B is a three-dimensional appearance view of the utility model in an unfolded state.

Fig. 7C is a three-dimensional appearance view of the utility model in a folded state.

Fig. 8A is a schematic appearance diagram of another embodiment of the present invention.

Fig. 8B is a disassembled and disassembled schematic view of another embodiment of the present invention.

Fig. 9A is a schematic diagram of the appearance of the control rod in the present invention.

Fig. 9B is a schematic diagram of another embodiment of the control rod in the present invention.

Explanation of reference signs: A-existing folding table; B-table board; C-movable table legs; 1-table board; 2-folding mechanism; 21-shell main body; 211-screw hole; 221-first fixing seat; 2211-fixing hole; 2212-concave hole; 2213-through hole; 222-movable rotating block; 2221-through hole; 3 Groove; 223-second fixing seat; 2231-fixing hole; 2232-protrusion; 2233-concave hole; 2234-bump; Elastic element; 226-control rod; 2261-first control rod; 2262-connecting rod; 2263-second control rod; 2264-external thread; 2265-screw hole; 2266-external thread; 231-fixing hole; 232-through hole; 233-positioning concave hole; 3-table foot; 4-screw; 5-button; 51-screw hole; 6-decorative element.

Detailed ways

The above-mentioned and other technical features and advantages of the present utility model will be described in more detail below in conjunction with the accompanying drawings.

In order to more clearly describe the structure of the folding table proposed by the present invention, it will be described in detail below with the aid of figures. Please refer to FIG. 2 , FIG. 3 and FIG. 7A , which are the three-dimensional exploded view, three-dimensional combined appearance view and partial three-dimensional exploded view of the folding table structure of the present invention. The utility model provides a folding table structure, which is mainly composed of a table board 1, at least one folding mechanism 2 and a pair of table legs 3 (as shown in Figure 7A), wherein the folding mechanism 2 further includes a shell body 21 1. At least one rotating engagement component 22 and a pair of fixed seat bodies 23, wherein the fixed seat body 23 can be fit and fixed on the table leg 3, and the shell main body 21 is arranged between the two fixed seat bodies 23, the rotating card The joint component 22 is arranged between the shell main body 21 and the fixed seat body 23. The shell main body 21, the rotating engagement component 22 and the fixed seat body 23 can be combined and fixed. Engaged and fixed at a specific angular position, one end of the movable rotating block 222 is combined and fixed with the bottom of the table 1, by controlling the engaging position of the movable rotating block 222 in the rotating engaging assembly 22 in the folding mechanism 2, that is The purpose of adjusting the rotation and folding of the table board 1 can be achieved, so that the foldable table can be in an open state (as shown in FIG. 7B ) or a folded state (as shown in FIG. 7C ) according to the needs of users.

In order to more clearly illustrate the operation mode of the folding mechanism in the present invention, a preferred embodiment is given as an illustration. In the structure described in the preceding paragraph, the rotating engagement assembly 22 further includes: a first fixed seat 221, a movable The rotating block 222, the second fixing seat 223, the engaging block 224, the elastic element 225 and a control rod 226 are composed, wherein the first fixing seat 221 and the second fixing seat 223 are respectively provided with fixing holes 2211, 2231, The movable rotating block 222 is arranged between the first fixed seat 221 and the second fixed seat 223, and the side where the second fixed seat 223 is combined with the first fixed seat 221 is provided with a protruding part 2232 with a circular section, and at the same time A through hole 2221 with a diameter slightly larger than the diameter of the protrusion 2232 is provided on the movable rotating block 222, and at least two grooves such as a first groove 2222 and a second groove 2223 are arranged on the edge of the through hole 2221. Recessed holes 2212, 2233 that can be fitted with the engaging block 224 are respectively provided on the opposite sides of the first fixed seat 221 and the second fixed seat 223, and the bottom surfaces of the concave holes 2212, 2233 are respectively provided with The through hole 2213 through which the control rod 226 passes through can form an engaging block accommodation space after the first fixing seat 221 and the second fixing seat 223 are combined. Cooperate with the inner edges of the grooves 2222 and 2223 of the movable rotating block 222 on the protruding part 2232 of the second fixed seat 223, so that the engaging block 224 can move in the accommodating space. The aforementioned engaging block 224 Can be fixed on the control rod 226, and the elastic element 225 is sleeved on the control rod 226 and located in the concave hole 2212 provided on the engaging block 224 and the first fixing seat 224, the elastic element 225 can be a compression spring . In addition, screw holes 211 and fixing holes 231 are respectively provided on both sides of the housing main body 21 and on the fixing base body 23 relative to the fixing holes 2211 and 2231 provided on the first fixing base 221 and the second fixing base 223. , and a through hole 232 through which the control rod 226 can pass is further provided on the fixed seat body 23 .

Through the design of the aforementioned structure, the assembler can first sleeve the elastic element 225 on the control rod 226 on the side where the engaging block 224 is in contact with the first fixed seat 221, and then pass one end of the control rod 226 through the The through hole 2213 on the bottom surface of the concave hole 2212 on the first fixed base 221 allows the two ends of the elastic element 225 to contact the bottom surface of the top concave hole 2212 and the engaging block 224 respectively, and then the movable rotating block 222 is penetrated by the set on it. The hole 2221 is directly sleeved on the protrusion 2232 of the second fixing seat 223, and then the fixing hole 231 provided on the fixing seat body 23 is directly passed through the fixing hole 2231, The fixing hole 2211 of the first fixing base 221 is directly screwed and fixed with the screw hole 211 provided on the housing main body 21, so that the outside of the control rod 226 can pass through and protrude from the through hole 232 provided on the fixing base body 23 (such as Figure 3).

Please continue to refer to FIG. 4A, FIG. 4B, FIG. 5A and FIG. 5B, FIG. 6A and FIG. Radial section (X-X section) and Fig. 4B, Fig. 5B and Fig. 6B are the axial sections (Y-Y section) in Fig. 3, wherein Fig. 4A and Fig. 4B show that described rotating engagement assembly 22 is in the state of engaging and fixing ( table top is open), and FIG. 5A and FIG. 5B show that the rotating engaging component 22 is in a released and rotatable state. Please refer to Fig. 4A, when the utility model is in a normal state, the first groove 2222 of the movable rotating block 222 is engaged above the engaging block 224, and other parts of the engaging block 224 are located in the recess of the second fixed seat 223. In the hole 2233, the effect of preventing the movable rotating block 222 from rotating can be achieved by setting the engaging block 224 at this time. And when the user wants to adjust and change the position of the table top 1, as long as the outside of the fixed base body 23 presses the control rod 226 protruding from the through hole 232 on the fixed base body 23, the control rod 226 can be pushed and fixed on it. The engaging block 224 will move inward and compress the elastic element 225 located on the control rod 226 at the engaging block 224 and the concave hole 2212 of the first fixing seat 221. When the engaging block 224 completely enters the first fixing seat 221 (as shown in FIG. 5B ), at this time, there is nothing between the movable rotating block 222 and the protrusion 2232 of the second fixed seat 223 that can block the rotation of the movable rotating block 222. The purpose of release is achieved, so the movable rotating block 222 can rotate and drive the table plate 1 fixed on it to rotate. At this time, the restoring force provided by the elastic element 225 itself can continuously generate a snap-fit Block 224 and lever 226 are pushed back outwardly. When the movable rotating block 222 continues to rotate until the second groove 2223 of the movable rotating block 222 reaches above the concave hole 2233 corresponding to the second fixed seat 223, the engaging block 224 can pass through the elastic element The force provided by 225 pushes it back into the concave hole 2233 provided by the second fixing seat 223 (as shown in FIG. 6A ). And in the second groove of the movable rotating block (as shown in Figure 6A), the effect of blocking the rotating of the movable rotating block 222 can be achieved, and the purpose of segmented automatic positioning and fixing can be achieved. At this time, the connection is fixed on the movable rotating block 222 The table board 1 on the top will show the state of folding.

Through the aforementioned design, it can be clearly and obviously found that the utility model modularizes the entire locking and releasing mechanism into a set of independent locking mechanisms 2, which is not only convenient for quick assembly and disassembly, but also will not be scattered after disassembly. If the parts are accidentally lost, it will be difficult to assemble in the future. At the same time, because the assembly and disassembly of the aforementioned engaging mechanism 2 of the utility model does not involve dismantling the rotating engaging assembly 22, only the table 1 and the engaging The fixing screws between the movable rotating blocks 222 in the mechanism 2 are removed, and the table legs 3 are separated from the fixed seat body 23 sleeved on it, so all assembly and disassembly do not need to be performed by professionals , but consumers who generally buy and use can use simple tools (screwdrivers) to complete the assembly work, so it is not only convenient for storage and transportation, but also suitable for buyers to assemble by themselves in a DIY way, effectively solving the problem of existing products after purchase. The lack of easy assembly for general consumers.

In the utility model, all the engaging and releasing mechanisms are completely hidden in the design of the entire engaging mechanism 2, so that whether it is in the process of releasing rotation or automatic engaging, all elements are hidden in the rotating engaging In the mechanism 2, not only the action of the engaging mechanism 2 has better operational safety, but also the structural design hidden inside can effectively prevent the damage caused by the erosion of water vapor or the collision of external force, making this The utility model product has better durability. More importantly, through the design of the utility model, which for the first time completely hides the moving elements inside, the appearance of the folding table using the utility model will be simpler and simplified, compared with the existing various components that are scattered and exposed to the outside The design of the foldable table, the utility model can greatly improve the design quality of the product, and enter the field of high-end furniture, so as to improve product refinement and commercial benefits.

In addition, in the aforementioned structure of the present utility model, the entire engaging and releasing mechanism is modularized into an engaging mechanism 2, which not only has the effect of quick assembly and disassembly, but also only needs to change the shape of the lower part of the fixed base and the table legs, that is, It can be matched with table legs of different shapes, so that the utility model can be applied and matched with table boards and table leg structures of various shapes or structures, which can effectively increase its application range and make various appearance changes.

In the present invention, in the aforementioned structure, the outer end of the control rod 226 is further provided with a button 5, and the button 5 can be sleeved on the control rod 226, which is not only convenient for the user to press, but also has an aesthetic effect.

In the aforementioned structure of the present utility model, the control rod 226 can be a long rod on which at least one engaging block 224 (as shown in FIG. 9A ) is fixed, which is suitable for general disassembly structure design (as shown in FIG. 7A).

In addition to the simple disassembly and assembly method shown in Figure 7A, the utility model is sometimes provided with decorative elements 6 of different shapes on the table legs 3 to beautify the appearance of the part due to the consideration of beautifying the appearance ( As shown in Figure 8A), but in consideration of the convenience of disassembly and assembly of the decorative element 6, another embodiment diagram of disassembly and assembly of the utility model (as shown in Figure 8B) is provided, which mainly fixes The seat body 23 , the table legs 3 and the decorative element 6 are regarded as an assembly, and are divided into three different main components with the folding mechanism 2 and the table board 1 .

In the aforementioned structure of the present utility model, in order to cooperate with the disassembly method shown in Figure 8B in the front section, the control rod 226 is further composed of at least a first control rod 2261, a connecting rod 2262 and a second control rod 2263 (such as 9B), wherein the connecting rod 2262 is located between the first control rod 2261 and the second control rod 2263, the two ends of the connecting rod 2262 are provided with external thread 2264, and the first control rod 2261 and the second control rod 2261 The side of the control rod 2263 adjacent to the connecting rod 2262 is respectively provided with screw holes 2265 which can be screwed and fixed by the external thread 2264 provided on the connecting rod 2262, and at the same time, the engaging block 224 is provided with a connecting rod 2262 The through hole 2265 through which the upper external thread 2264 passes is provided with an external thread 2266 at the other end of the first control rod 2261, and at the same time, the side where the button 5 is combined with the first control rod 2261 is provided with the external thread 2266 Cooperating screw holes 51. Through the aforementioned structure, when the control rod 226 is combined with the engaging block 224, the external thread 2264 of the connecting rod 2262 can first pass through the through hole 2241 provided on the engaging block 224 and then connect with the screw hole of the second control rod 2263. 2265 is screwed and fixed to achieve the purpose of fixing the engaging block 224 on the control rod 226, then the first control rod 2261 and the connecting rod 2262 are screwed and fixed, and finally the button 5 is screwed by the screw hole 51 provided on the button 5. 51 is screwed and fixed with the external thread 2266 provided on the upper outer end of the first control rod 2261.

In addition to the design of the present utility model, the rotating engaging assembly 22 responsible for engaging and positioning can be installed on one side of the folding table alone, or can be installed on both sides of the folding table at the same time, so that no matter which side the user chooses to The purpose of releasing the rotation can be achieved by pressing the button.

And the utility model is further provided with a protrusion 2234 on the outer edge of the protruding part 2232 of the second fixed seat 223, and at the same time, a third groove 2224 is arranged on the edge of the through hole 2221 of the movable rotating block 222, and the third groove 2224 is provided. The width of the groove 2224 is exactly the width of the first groove 2222 and the second groove 2223 plus the distance between the two grooves, and the movable rotating block 222 is limited by the setting of the aforementioned protrusion 2234 and the third groove 2224 The angle and direction of rotation on the protrusion 2232 of the second fixing base 223 .

In the aforementioned structure of the present utility model, a protruding positioning block 2235 is further provided on the side of the second fixing seat 223 close to the fixing seat body 23, and a positioning recess is arranged at the relative position on the fixing seat body 23 at the same time. The holes 233, through the design of the aforementioned positioning block 2235 and the positioning concave hole 233, when the second fixing base 223 is combined with the fixing base body 23, the fixing holes 2231, 231 respectively provided on the two can quickly overlap and locate , it is convenient for the assembler to use the screws 4 to pass through the fixing holes 2231, 231 for fixing work.

In addition, in the aforementioned structure of the present utility model, each folding table only needs at least one folding mechanism 2 to achieve the basic rotation and automatic locking and positioning effect, but it can also be directly controlled by two locking mechanisms 2 as shown in Figure 7A. Responsible, by linking the control levers 226 in the two engaging mechanisms 2, the user can achieve the effects of synchronous release, rotation and automatic engaging and fixing no matter which side of the engaging mechanism 2 is operated.

The above description uses preferred embodiments to describe the utility model in detail, but not to limit the scope of the utility model. Generally, those who are familiar with this type of art can understand it, and make slight changes and adjustments appropriately, such as increasing the number of grooves or changing the fixed mode between the control rod and the engaging block or even the form of the table legs (a pair or A single individual), the difference caused will still not lose the gist of the utility model, nor depart from the spirit and scope of the utility model.

To sum up, the utility model not only provides a design completely different from the existing foldable structure, but also modularizes the locking mechanism and hides all the actuating elements inside, which not only makes it easy to assemble and disassemble , and can improve the safety of its use and operation and the durability of the product, and its simplified design can greatly improve the texture and economic value of the product. The above description is only illustrative of the present utility model, rather than restrictive. Those of ordinary skill in the art understand that many modifications and changes can be made without departing from the spirit and scope defined by the following appended claims. , or equivalent, but all will fall within the protection scope of the present utility model.

Claims (10)

1, a kind of foldable table structure, it is characterized in that, it comprises a table, at least one mechanism and a pair of table pin amounted to, the wherein said mechanism of amounting to further comprises a housing main body, at least one revotating card is set up part and a pair of fixed base frame jointly, described fixed base frame fit is fixed on the described table pin, described housing main body is arranged between two fixed base frames, described revotating card is set up part jointly and is arranged between described housing main body and the described fixed base frame, described housing main body, described revotating card is set up jointly between part and described fixed base frame in conjunction with fixing, setting up jointly at described revotating card has a movable spill spin block in the part, described movable spill spin block can rotate and be fixed in specific angle position, and an end of described movable spill spin block combines fixing with the bottom of described table.

2, foldable table structure as claimed in claim 1, it is characterized in that, described revotating card is set up part jointly and is further comprised: first holder, movable spill spin block, second holder, clamping block, a flexible member and a control lever, be respectively equipped with fixing hole on wherein said first holder and described second holder, described movable spill spin block is located between described first holder and described second holder, described second holder is provided with a protuberance with the side that described first holder combines, the through hole of one diameter greater than described protuberance diameter is set on described movable spill spin block simultaneously, described through hole edge is provided with at least the first groove and second groove, a relative side of this external described first holder and described second holder is respectively equipped with the shrinkage pool with described clamping block form fit, be respectively equipped with the through hole that passes for control lever on the bottom surface of described shrinkage pool, make described first holder and described second holder in conjunction with forming afterwards a clamping block accommodation space, the top of described shrinkage pool be sheathed on the set protuberance of described second holder on first groove of movable spill spin block or the inner edge of second groove cooperate, described clamping block is moved in described accommodation space, described clamping block is fixed on the control lever, described flexible member be sheathed on the described control lever and be positioned at described clamping block and described first holder on set shrinkage pool, on the two side ends of described housing main body and the described fixed base frame with respect to first holder and second holder on the relative position of set fixing hole be respectively equipped with screw and fixing hole, on described fixed base frame, further be provided with the through hole that passes for control lever.

3, foldable table structure as claimed in claim 2 is characterized in that, the section of described protuberance is circular.

4, foldable table structure as claimed in claim 2 is characterized in that, the outboard end of described control lever further is provided with a button, and described button is sheathed on the described control lever.

5, foldable table structure as claimed in claim 2, it is characterized in that, described control lever further comprises first control lever, links the rod member and second control lever, wherein said connecting rod is between described first control lever and described second control lever, the two ends of described connecting rod are equipped with external screw teeth, described first control lever and described second control lever are respectively equipped with set external screw teeth on the described connecting rod adjacent to a side of described connecting rod and screw togather fixing screw, are being provided with the through hole that passes for external screw teeth on the connecting rod on the described clamping block simultaneously.

6, foldable table structure as claimed in claim 4, it is characterized in that, described control lever further comprises first control lever, link the rod member and second control lever, wherein said connecting rod is between described first control lever and described second control lever, the two ends of described connecting rod are equipped with external screw teeth, described first control lever and described second control lever are respectively equipped with set external screw teeth on the described connecting rod adjacent to a side of described connecting rod and screw togather fixing screw, be provided with the through hole that passes for external screw teeth on the connecting rod on the described clamping block simultaneously, the other end of described first control lever is provided with external screw thread, is engaged in the side that described button combines with described first control lever simultaneously and is provided with the screw that cooperates with described external screw thread.

7, foldable table structure as claimed in claim 2, it is characterized in that, the outer rim of the described second holder protuberance is provided with a projection, the edge that is engaged in the through hole of described movable spill spin block simultaneously is provided with the 3rd groove, and the width of described the 3rd groove is that the width of described first groove and the width of described second groove add the above first groove and the described second groove spacing distance.

8, foldable table structure as claimed in claim 2 is characterized in that, described flexible member is a compression spring.

9, foldable table structure as claimed in claim 2 is characterized in that, near a side of described fixed base frame, further is provided with an outstanding locating piece on described second holder, and the relative position on fixed base frame is provided with the location shrinkage pool.

10, foldable table structure as claimed in claim 1 is characterized in that, described revotating card is set up part jointly, is located at the both sides of foldable table simultaneously.

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