CN201360756Y

CN201360756Y - Row seat frame

Info

Publication number: CN201360756Y
Application number: CN 200920051980
Authority: CN
Inventors: 邓旭初
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-03
Filing date: 2009-03-03
Publication date: 2009-12-16
Anticipated expiration: 2019-03-03

Abstract

The utility model belongs to the field of furniture manufacture, and particularly relates to a firmly connected row seat frame, which comprises seat leg frames, armrest frames, crossbeams and locking bolts. Bearing platforms in which the crossbeams are embedded are formed at the joints of the seat leg frames and the armrest frames; a connection plate is arranged above each bearing platform, and threaded holes are formed on the connection plate; another connection plate is arranged below each bearing platform, and through holes penetrating downwards are formed on the connection plate; the crossbeams are embedded in the bearing platforms; and the locking bolts pass through the through holes and connection holes from the lower ends of the seat leg frames and then are fixed on the threaded holes. The row seat frame is characterized in that V-shaped blocks extending downwards and facing to the threaded holes are arranged at the upper ends of the bearing platforms; inverted V-shaped blocks extending upwards and facing to the through holes are arranged at the lower ends of the bearing platforms; a double-ended positioning sleeve connected with the V-shaped blocks and the inverted V-shaped blocks in a matching manner is arranged on the connection holes at the end parts of the crossbeams; and connection holes for the locking bolts to pass through are formed on the V-shaped blocks, the inverted V-shaped blocks and the double-ended positioning sleeve respectively. The row seat frame adopting the structure has the advantages of firm connection and low probability of looseness.

Description

Row's chair chair frame

Technical field

The utility model belongs to furniture and makes the field, is specifically related to a kind of firm row's chair chair frame that connects.

Background technology

The present row's chair chair frame that is used for public places such as airport, station, mainly form by chair foot rest, arm-rest frame, crossbeam and clamping screw, chair foot rest and arm-rest frame junction offer the heavy stand of setting-in crossbeam, the top of heavy stand is provided with connecting plate, offer screwed hole on the connecting plate, the below of heavy stand is provided with another connecting plate, and connecting plate offers the through hole that runs through downwards, crossbeam is inlaid in the heavy stand, and clamping screw is fixed on the screwed hole after passing through hole, connecting hole from the arm-rest frame lower end.Adopt row's chair chair frame of this structure, simple in structure, easy to connect, but in use, find that clamping screw is easy to become flexible, cause chair to connect built on the sand.

Summary of the invention

The purpose of this utility model is to provide a kind of connection firm, is difficult for loosening row's chair chair frame.

The purpose of this utility model is achieved in that a kind of row's chair chair frame, comprise chair foot rest (1), arm-rest frame (2), crossbeam (3) and clamping screw (4), chair foot rest (1) and arm-rest frame (2) junction offer the heavy stand (5) of setting-in crossbeam (3), the top of heavy stand (5) is provided with connecting plate (6), offer screwed hole (60) on the connecting plate (6), the below of heavy stand (5) is provided with another connecting plate (7), connecting plate (7) offers the through hole (70) that runs through downwards, crossbeam (3) is inlaid in the heavy stand (5), clamping screw (4) passes through hole (70) from chair foot rest (1) lower end, be fixed on behind the connecting hole on the screwed hole (60), it is characterized in that: the upper end of described heavy stand (5) has downward extension and over against the vee-block (8) of screwed hole (60); The lower end of described heavy stand (5) has and extends upward and over against the inverted V-shaped piece (9) of through hole (70), on the connecting hole of crossbeam (3) end, be provided with the double end positioning sleeve (10) that is connected with vee-block (8) and inverted V-shaped piece (9), offer the connecting hole that passes for clamping screw (4) on vee-block (8), inverted V-shaped piece (9), the double end positioning sleeve (10) respectively.

Good effect of the present utility model: vee-block and inverted V-shaped piece are set respectively at the heavy stand upper and lower side, the double end positioning sleeve that setting and vee-block, inverted V-shaped piece are connected on the crossbeam connecting hole, when vee-block, inverted V-shaped piece are plugged on the double end positioning sleeve, under the clamping screw effect, cooperating can be more and more tighter, forms the nature connection status, and the connection of having got rid of to a great extent clamping screw relies on, therefore clamping screw is difficult for getting loose, and whole chair frame connects firm.

Description of drawings

Fig. 1 is row's chair chair frame connecting structure schematic diagram of prior art;

Fig. 2 is row's chair chair shelf structure exploded view of prior art;

Fig. 3 is row's chair chair frame connecting structure schematic diagram of the present utility model;

Fig. 4 is row's chair chair shelf structure exploded view of the present utility model;

Fig. 5 installs the user mode figure of seat support for row's chair chair frame of the present utility model.

The specific embodiment

Be described in further detail below in conjunction with the specific embodiment of accompanying drawing the utility model row chair chair frame.

Embodiment: Fig. 1, Figure 2 shows that row's chair chair frame of prior art, mainly by chair foot rest 1, arm-rest frame 2, crossbeam 3 and clamping screw 4 are formed, chair foot rest 1 and arm-rest frame 2 junctions offer the heavy stand 5 of setting-in crossbeam 3, the top of heavy stand 5 is provided with connecting plate 6, offer screwed hole 60 on the connecting plate 6, the below of heavy stand 5 is provided with another connecting plate 7, connecting plate 7 offers the through hole 70 that runs through downwards, end at crossbeam 3 offers connecting hole, crossbeam 3 is inlaid in the heavy stand 5, and clamping screw 4 passes through hole 70 from chair foot rest 1 lower end, be fixed on behind the connecting hole on the screwed hole 60.Adopt row's chair chair frame of this structure, simple in structure, easy to connect, but in use, clamping screw 4 is easy to become flexible, and connects built on the sand.In order to improve the connective stability of row's chair chair frame, the utility model has carried out architecture advances to row's chair chair frame of prior art, as shown in Figure 3, Figure 4, has one in the upper end of heavy stand 5 and extends downwards and over against the vee-block 8 of screwed hole 60; Heavy stand 5 lower ends have one and extend upward and over against the inverted V-shaped piece 9 of through hole 70, on the connecting hole of crossbeam 3 ends, be provided with a double end positioning sleeve 10 that is connected with vee-block 8 and inverted V-shaped piece 9, during installation, vee-block 8 and inverted V-shaped piece 9 are connected to the two ends of double end positioning sleeve 10 respectively, under the clamping screw effect, can make to be connected more and more tightlyer between vee-block 8 and inverted V-shaped piece 9 and the double end positioning sleeve 10, clamping screw 4 will connect very firmly like this, is difficult for loosening.Fig. 5 is provided with seat support 11 for row's chair chair frame user mode figure on the crossbeam 3 between the bracing frame of being made up of the chair foot rest 1 and the arm-rest frame 2 of the right and left, row's chair of this structure can be applicable to various public places.

Claims

1, a kind of row's chair chair frame, comprise chair foot rest (1), arm-rest frame (2), crossbeam (3) and clamping screw (4), chair foot rest (1) and arm-rest frame (2) junction offer the heavy stand (5) of setting-in crossbeam (3), the top of heavy stand (5) is provided with connecting plate (6), offer screwed hole (60) on the connecting plate (6), the below of heavy stand (5) is provided with another connecting plate (7), connecting plate (7) offers the through hole (70) that runs through downwards, crossbeam (3) is inlaid in the heavy stand (5), clamping screw (4) passes through hole (70) from chair foot rest (1) lower end, be fixed on behind the connecting hole on the screwed hole (60), it is characterized in that: the upper end of described heavy stand (5) has downward extension and over against the vee-block (8) of screwed hole (60); The lower end of described heavy stand (5) has and extends upward and over against the inverted V-shaped piece (9) of through hole (70), on the connecting hole of crossbeam (3) end, be provided with the double end positioning sleeve (10) that is connected with vee-block (8) and inverted V-shaped piece (9), offer the connecting hole that passes for clamping screw (4) on vee-block (8), inverted V-shaped piece (9), the double end positioning sleeve (10) respectively.