CN211223500U

CN211223500U - Foldable trolley frame

Info

Publication number: CN211223500U
Application number: CN201921968879.3U
Authority: CN
Inventors: 孙礼芳; 赵华伦
Original assignee: Nanjing Zhongci Precision Manufacturing Co ltd
Current assignee: Anhui REM Industrial System Co.,Ltd.
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-08-11
Anticipated expiration: 2029-11-15

Abstract

The utility model discloses a foldable trolley frame, which comprises two stand columns I and two stand columns II, wherein the bottoms of the stand columns I and the stand columns II are fixedly connected with universal pulleys, a connecting arm I is fixedly connected between the two stand columns I and the two stand columns II, the top between the stand columns I and the stand columns II is fixedly connected with a fixed block, one side of the fixed block is movably provided with a movable arm through a hinge, and the tops of the two movable arms are movably arranged through hinges; the utility model provides a traditional rack all be weld forming, the rack occupies great space when not using, bring a great deal of inconvenience for the user, and the rack on the rack can not block placing the dish in addition, make placing the dish problem that the landing easily appears in the in-process of rack motion, make this folded cascade rack, can fold when not using, the occupation space of effectual reduction rack, can prevent to place the dish landing when the rack uses moreover, it is convenient to provide for the user.

Description

Foldable trolley frame

Technical Field

The utility model relates to a bogie frame technical field specifically is a folded cascade bogie frame.

Background

The trolley is mainly used for pouring concrete in tunnels, diversion tunnels and secondary linings, is of a traversing structure and a needle beam structure, mainly comprises a portal frame and templates, mainly bears the weight of the portal frame, and the templates are designed according to the shapes of the tunnels.

The bogie frame is an important component in the bogie frame field, the traditional bogie frame is formed by welding, the bogie frame occupies a large space when not in use, a great deal of inconvenience is brought to a user, and the placing frame on the bogie frame cannot block the placing disc, so that the placing disc is easy to slip in the moving process of the bogie frame.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a folded cascade rack possesses collapsible and prevents to place the advantage of a set landing, has solved traditional rack and all is weld forming, and the rack occupies great space when not using, brings a great deal of inconvenience for the user, and the rack on the rack can not block placing the dish moreover for place the dish and easily appear the problem of landing at the in-process of rack motion.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a folded cascade platform truck frame, includes two stands one and two stands two, stand one and the equal fixedly connected with universal pulley in bottom of stand two, two stands one and two equal fixedly connected with linking arm one between the stand two, the equal fixedly connected with fixed block in top between stand one and the stand two, there is the digging arm one side of fixed block through hinge movable mounting, and hinge movable mounting is passed through at the top of two digging arms, the fixed block is provided with lock solid mechanism with the bottom of digging arm, bottom between stand one and the stand two is provided with folding adjustment mechanism, stand one and the equal fixedly connected with rack body in one side that stand two are relative.

Preferably, the locking mechanism comprises a first fixed frame fixed at the bottom of the movable arm, a locking block groove is formed in one side, close to the movable arm, of the first fixed frame, a locking block is slidably connected to an inner cavity of the locking block groove, a second fixed frame is fixedly connected to the bottom of the fixed block, and a locking groove matched with the locking block is formed in one side, close to the fixed block, of the second fixed frame.

Preferably, one side of the top of the locking block and close to the movable arm is fixedly connected with a pushing block, and the top of the pushing block extends to the top of the first fixed frame.

Preferably, the top of the locking piece is fixedly connected with a first limiting block, and the first limiting block is located between the first fixing frame and the second fixing frame.

Preferably, folding adjustment mechanism includes two linking arms two, and two linking arms two fixed connection are all passed through to the bottom between two stands one and two stands two, and the front side and the rear side of two relative one sides of linking arm all have the connecting rod through pivot swing joint, are provided with two-way screw rod between two linking arms two, the equal threaded connection in front side and the rear side of two-way screw rod has the swivel nut, the both sides of swivel nut all rotate with the connecting rod through the pivot and are connected.

Preferably, the rear end of the bidirectional screw is fixedly connected with a second limiting block, and the front end of the bidirectional screw is fixedly connected with a rotary knob block.

Preferably, the surface of the rotating block is provided with an anti-slip groove.

Preferably, the rack body includes the rack, the standing groove has been seted up at the top of rack, the rectangular channel has been opened to the front side of standing groove inner chamber bottom, the inner chamber fixedly connected with pivot pole of rectangular channel, the surface rotation of pivot pole is connected with the piece that hinders, the piece that hinders is close to one side of pivot pole and has seted up the torsional spring mounting groove, the surface cover of pivot pole is equipped with the torsional spring, the torsional spring is located the inner chamber of torsional spring mounting groove, the one end and the piece fixed connection that hinders of torsional spring, the other end of torsional spring and the inner wall fixed connection of rectangular channel.

Preferably, the inner cavity of the rectangular groove is fixedly connected with a stop block, and the stop block is positioned at the top of the rotating shaft rod.

Preferably, the universal pulley comprises a bearing frame, the bottom of the bearing frame is rotatably connected with a pulley frame, and the inner cavity of the pulley frame is rotatably connected with a pulley through a rotating shaft.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model cancels the reinforcement between the fixed block and the movable arm through the locking mechanism, and then adjusts the folding adjusting mechanism, so that the first upright post moves in the opposite direction to the second upright post, thereby achieving the folding purpose, the placing disc is placed at the top of the placing frame body, the placing disc is limited in the placing process, the placing disc can not slide in the moving process of the trolley frame, thereby achieving the folding purpose and preventing the placing disc from sliding off, solving the problems that the traditional trolley frame is welded and formed, the trolley frame occupies larger space when not in use, bringing inconvenience to users, and the placing frame on the trolley frame can not block the placing disc, so that the placing disc is easy to slide off in the moving process of the trolley frame, the foldable trolley frame can be folded when not in use, effectively reducing the occupied space of the trolley frame, and the trolley frame can prevent the placing disc from sliding off when in use, thereby providing convenience for users.

2. The utility model is used by matching the locking mechanism and the folding adjusting mechanism, when folding, a user pulls the hand-push block to drive the locking block to move, so that the locking block is separated from the inner cavity of the locking groove, the limit on the second fixing frame is cancelled, then the hand-push block is manually rotated, the rotary block drives the two-way screw rod to rotate, the two-way screw rod and the screw sleeve are in threaded connection, the two screw sleeves are driven to move in opposite directions, the screw sleeve pulls the two connecting arms to move in opposite directions through the connecting rod, the two connecting arms drive the first upright post and the second upright post to move in opposite directions through the universal pulley, in the process of the opposite movement of the first upright post and the second upright post, the movable arm is turned downwards and folded due to the gravity, the purpose of folding the trolley frame can be achieved, the hand-push block can play the purpose of facilitating the user to lock block, the first stopper can limit the locking block, the second limiting block can limit the screw sleeve, the screw sleeve is prevented from slipping from the surface of the bidirectional screw rod, and the rotary twisting block facilitates a user to rotate the bidirectional screw rod.

3. The utility model discloses a setting of rack body, the user will place the dish when placing the inner chamber of standing groove, the gravity of placing the dish can be transferred and be stopped the piece and use the pivot pole to rotate to the inner chamber of rectangular channel as the axle, the torsional spring is the state of atress this moment, place the dish and promote when stretching out to the standing groove inner chamber, place the top that the dish has broken away from the piece promptly, the restoring force of torsional spring drives the inner chamber that the piece turned out the rectangular channel, block placing the dish, can reach and prevent to place the mesh of a landing, the dog can be spacing to the piece that blocks, the excessive pivoted condition has been avoided blocking the piece to appear.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic top view of the connection structure of the fixed block and the movable arm according to the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

fig. 4 is a schematic perspective view of the folding adjustment mechanism of the present invention;

fig. 5 is a schematic perspective view of a partial structure of the rack body of the present invention;

fig. 6 is a schematic three-dimensional split view of the local structure of the rack body of the utility model;

fig. 7 is a schematic perspective view of the universal pulley structure of the present invention.

In the figure: 1. a first upright post; 2. a second upright post; 3. a universal pulley; 31. a bearing bracket; 32. a pulley yoke; 33. a pulley; 4. a first connecting arm; 5. a fixed block; 6. a movable arm; 7. a locking mechanism; 71. a first fixing frame; 72. a lock block slot; 73. a locking block; 74. a second fixing frame; 75. locking the groove; 76. a hand push block; 77. a first limiting block; 8. a folding adjustment mechanism; 81. a second connecting arm; 82. a connecting rod; 83. a bidirectional screw; 84. a threaded sleeve; 85. rotating the knob block; 86. a second limiting block; 9. a rack body; 91. placing a rack; 92. a placement groove; 93. a rectangular groove; 94. a spindle rod; 95. blocking; 96. a torsion spring mounting groove; 97. a torsion spring; 98. and a stop block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a foldable trolley frame comprises two first upright posts 1 and two second upright posts 2, universal pulleys 3 are fixedly connected to the bottoms of the first upright posts 1 and the second upright posts 2, each universal pulley 3 comprises a bearing frame 31, a pulley frame 32 is rotatably connected to the bottom of each bearing frame 31, a pulley 33 is rotatably connected to the inner cavity of each pulley frame 32 through a rotating shaft, a connecting arm I4 is fixedly connected between each first upright post 1 and each second upright post 2, a fixing block 5 is fixedly connected to the top between each first upright post 1 and each second upright post 2, a movable arm 6 is movably mounted on one side of each fixing block 5 through a hinge, the tops of the two movable arms 6 are movably mounted through hinges, locking mechanisms 7 are arranged at the bottoms of the fixing blocks 5 and the movable arms 6, each locking mechanism 7 comprises a first fixing frame 71 fixed at the bottom of the movable arm 6, a locking block 73 is slidably connected to the inner cavity of the fixing frame 71, which is provided with a locking, the bottom fixedly connected with mount two 74 of fixed block 5, the locked groove 75 with a locking piece 73 looks adaptation is seted up to the one side that is close to fixed block 5 of mount two 74, the top of locking piece 73 and the one side fixedly connected with push block 76 that is close to digging arm 6, the top of push block 76 extends to the top of mount one 71, the top fixedly connected with stopper one 77 of locking piece 73, stopper one 77 is located between mount one 71 and mount two 74, push block 76 can play the purpose of the person of facilitating the use push-and-pull locking piece 73, stopper one 77 can carry on spacingly to locking piece 73, the effectual inner chamber that has prevented locking piece 73 and break away from locking piece groove 72, the bottom between stand one 1 and the stand two 2 is provided with folding adjustment mechanism 8, the equal fixedly connected with rack body 9 in the one side that stand one 1 is relative with stand two 2.

In this embodiment, the folding adjusting mechanism 8 includes two connecting arms two 81, the bottoms of the two first uprights 1 and the two second uprights 2 are fixedly connected through the two connecting arms two 81, the front side and the rear side of the opposite side of the two connecting arms two 81 are movably connected with a connecting rod 82 through a rotating shaft, a two-way screw 83 is arranged between the two connecting arms two 81, the front side and the rear side of the two-way screw 83 are respectively in threaded connection with a screw sleeve 84, both sides of the screw sleeve 84 are rotatably connected with the connecting rod 82 through a rotating shaft, the rear end of the two-way screw 83 is fixedly connected with a second limiting block 86, the front end of the two-way screw 83 is fixedly connected with a rotary knob 85, the surface of the rotary knob 85 is provided with an anti-slip groove, when the locking mechanism 7 and the folding adjusting mechanism 8 are used in a matching manner, a user pulls the hand push block 76 to drive the locking block 73 to move, so that the, then the rotating knob block 85 is rotated manually, the rotating knob block 85 drives the bidirectional screw 83 to rotate, the bidirectional screw 83 is in threaded connection with the screw sleeve 84, the two screw sleeves 84 are driven to move oppositely, the screw sleeve 84 pulls the two connecting arms two 81 to move oppositely through the connecting rod 82, the connecting arms two 81 drive the stand column one 1 and the stand column two 2 to move oppositely through the universal pulley 3, in the process that the stand column one 1 and the stand column two 2 move oppositely, the movable arm 6 is turned and folded downwards due to gravity, the purpose of folding the trolley frame can be achieved, the limiting block two 86 can limit the screw sleeve 84, the screw sleeve 84 is prevented from slipping from the surface of the bidirectional screw 83, and the rotating knob block 85 facilitates a user to rotate the bidirectional screw 83.

In this embodiment, the rack body 9 includes a rack 91, a placing slot 92 is formed at the top of the rack 91, a rectangular slot 93 is formed at the front side of the bottom of the inner cavity of the placing slot 92, a rotating shaft rod 94 is fixedly connected to the inner cavity of the rectangular slot 93, a stopping block 95 is rotatably connected to the surface of the rotating shaft rod 94, a torsion spring mounting slot 96 is formed at one side of the stopping block 95 close to the rotating shaft rod 94, a torsion spring 97 is sleeved on the surface of the rotating shaft rod 94, the torsion spring 97 is located in the inner cavity of the torsion spring mounting slot 96, one end of the torsion spring 97 is fixedly connected to the stopping block 95, the other end of the torsion spring 97 is fixedly connected to the inner wall of the rectangular slot 93, a stopping block 98 is fixedly connected to the inner cavity of the rectangular slot 93, and the stopping block 98 is located at the top of the rotating shaft rod 94, when a user places a placing tray in the inner cavity of the, torsional spring 97 is the state of atress this moment, places the dish and promotes when stretching out to standing groove 92 inner chamber, places the dish promptly and has broken away from the top that hinders piece 95, and torsional spring 97's restoring force drives the inner chamber that hinders piece 95 and roll out rectangular channel 93, blocks placing the dish, can reach the purpose that prevents to place the dish landing, and dog 98 can be spacing to hindering piece 95, has avoided hindering the piece 95 excessive pivoted condition to appear.

During specific use, firstly, when a user folds, the limitation of the locking mechanism 7 on the fixed block 5 and the movable arm 6 can be removed in advance, then the folding adjusting mechanism 8 is adjusted, the first upright post 1 and the second upright post 2 can slide on the ground through the universal pulley 3 to move oppositely, so that the folding purpose can be achieved, when the folding adjusting mechanism is used, the user can reversely rotate the folding adjusting mechanism 8, the first upright post 1 and the second upright post 2 can reversely move, the fixed block 5 and the movable arm 6 are in a horizontal state, the folding adjusting mechanism 8 is stopped to be adjusted, then the locking mechanism 7 is limited on the fixed block 5 and the movable arm 6, so that the folding adjusting mechanism can be opened for use, when a placing disc is placed at the top of the placing frame body 9, the limiting can be achieved, and the.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a folded cascade bogie frame, includes two stands one (1) and two stands two (2), its characterized in that: the utility model discloses a folding rack, including stand one (1), stand two (2), the equal fixedly connected with universal pulley (3) in bottom of stand one (1) and stand two (2), equal fixedly connected with linking arm (4) between two stand one (1) and two stand two (2), the equal fixedly connected with fixed block (5) in top between stand one (1) and stand two (2), there is digging arm (6) one side of fixed block (5) through hinge movable mounting, and hinge movable mounting is passed through at the top of two digging arms (6), fixed block (5) and the bottom of digging arm (6) are provided with locking mechanism (7), the bottom between stand one (1) and stand two (2) is provided with folding adjustment mechanism (8), the equal fixedly connected with rack body (9) in one side that stand one (1) is relative with stand two (2).

2. Foldable trolley frame according to claim 1, characterized in that: locking mechanism (7) is including being fixed in mount (71) of digging arm (6) bottom, locking piece groove (72) have been seted up to one side that the digging arm (6) is close to mount (71) the inner chamber sliding connection in locking piece groove (72) has locking piece (73), the bottom fixedly connected with mount two (74) of fixed block (5), locking groove (75) with locking piece (73) looks adaptation are seted up to one side that is close to fixed block (5) of mount two (74).

3. Foldable trolley frame according to claim 2, characterized in that: the top of the locking block (73) is close to one side of the movable arm (6), and a pushing block (76) is fixedly connected to the top of the locking block (73), and the top of the pushing block (76) extends to the top of the first fixing frame (71).

4. Foldable trolley frame according to claim 2, characterized in that: the top of the locking piece (73) is fixedly connected with a first limiting block (77), and the first limiting block (77) is located between the first fixing frame (71) and the second fixing frame (74).

5. Foldable trolley frame according to claim 1, characterized in that: folding adjustment mechanism (8) include two linking arms (81), and bottom between two stands (1) and two stands (2) all is through two (81) fixed connection of linking arm, and the front side and the rear side of two relative one sides of linking arm (81) all have connecting rod (82) through pivot swing joint, are provided with two-way screw rod (83) between two linking arms (81), the equal threaded connection in front side and the rear side of two-way screw rod (83) has swivel nut (84), the both sides of swivel nut (84) all rotate with connecting rod (82) through the pivot and are connected.

6. Foldable trolley frame according to claim 5, characterized in that: the rear end of the bidirectional screw (83) is fixedly connected with a second limiting block (86), and the front end of the bidirectional screw (83) is fixedly connected with a rotary knob block (85).

7. Foldable trolley frame according to claim 6, characterized in that: the surface of the rotating block (85) is provided with an anti-skid groove.

8. Foldable trolley frame according to claim 1, characterized in that: the rack body (9) comprises a rack (91), a placement groove (92) is formed in the top of the rack (91), a rectangular groove (93) is formed in the front side of the bottom of an inner cavity of the placement groove (92), an inner cavity fixedly connected with rotating shaft rod (94) of the rectangular groove (93), a block (95) is connected to the surface of the rotating shaft rod (94) in a rotating mode, a torsion spring installation groove (96) is formed in one side, close to the rotating shaft rod (94), of the block (95), a torsion spring (97) is sleeved on the surface of the rotating shaft rod (94), the torsion spring (97) is located in the inner cavity of the torsion spring installation groove (96), one end of the torsion spring (97) is fixedly connected with the block (95), and the other end of the torsion spring (97) is fixedly connected with the inner wall of the.

9. Foldable trolley frame according to claim 8, characterized in that: the inner cavity of the rectangular groove (93) is fixedly connected with a stop block (98), and the stop block (98) is positioned at the top of the rotating shaft rod (94).

10. Foldable trolley frame according to claim 1, characterized in that: universal pulley (3) are including bearing bracket (31), the bottom of bearing bracket (31) is rotated and is connected with pulley yoke (32), the inner chamber of pulley yoke (32) is rotated through the pivot and is connected with pulley (33).