Novel counter balanced fork lift truck door frame

Abstract

The utility model discloses a novel counterbalance forklift truck door frame which comprises a fixed frame, a movable frame is connected to the inner side wall of the fixed frame in a sliding mode, moving grooves are symmetrically formed in the inner side of the movable frame, supporting assemblies are arranged on one sides of the tops of the two moving grooves, and mounting plates are symmetrically and fixedly mounted at the bottom of the fixed frame. A plurality of sections of lifting assemblies are mounted on the mounting plate. The utility model relates to the technical field of forklifts. The rack is driven by the connecting blocks on the two sides of the pallet fork to move upwards, when the rack moves, the driving gear is driven to rotate, the driving gear drives the two-way screw to rotate, and when the two-way screw rotates, the two moving plates are pushed by threads to move relatively. And when the two moving plates move, the two opposite inserting rods are driven to be inserted into the corresponding inserting grooves, so that the pallet fork moving to the top is supported again, the output end of the first hydraulic telescopic rod is effectively protected, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, in particular to a novel counterbalanced forklift door frame. Background Art

[0002] A forklift is a lifting vehicle equipped with lifting forks at the front and a counterweight at the rear. Forklifts are used for loading, unloading, stacking, and moving piece goods within ports, stations, and other industries. With the development of the logistics industry, high-rise racking is becoming increasingly popular due to its high efficiency and high storage density. New counterbalanced forklifts play a key role in cargo handling on high-rise racks.

[0003] At present, the forks on the existing new counterbalanced forklifts are all fixed on the mast. During the actual operation of the mast, the forks are adjusted up and down by relying on hydraulic devices. When the forks rise to the top, the forked goods are supported only by the hydraulic devices, which has poor safety. The weight of the goods can easily damage the hydraulic devices and easily cause injuries to the operators. Therefore, the utility model provides a new counterbalanced forklift mast, which solves the above problems through limiting structures such as racks and drive gears. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a novel counterbalanced forklift mast, which solves the above problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a novel counterbalanced forklift mast, comprising a fixed frame, a movable frame being slidably connected to the inner side wall of the fixed frame, movable grooves being symmetrically opened on the inner side of the movable frame, the same fork being slidably connected in two of the movable grooves, a support assembly being provided on one side of the top of the two movable grooves, a mounting plate being symmetrically fixedly mounted on the bottom of the fixed frame, and a multi-section lifting assembly being mounted on the mounting plate;

[0006] The support assembly includes connecting blocks symmetrically fixedly installed on both sides of the top of the fork, and a rack is fixedly installed on one side of the two connecting blocks, a groove is provided on the side wall of the movable groove, a movable groove is provided in the top of the movable frame, a bidirectional screw is rotatably connected in the movable groove, a driving gear is fixedly installed in the middle of the bidirectional screw, and the outer surfaces of both ends of the bidirectional screw are threadedly connected to the movable plates, and the opposite surfaces of the two movable plates are symmetrically fixedly installed with plug rods, and slots are symmetrically provided on both sides of the movable groove, and T-shaped sliders are fixedly installed on the bottom of the two movable plates, and T-shaped slide grooves are symmetrically provided on the bottom wall of the movable groove.

[0007] Preferably, the multi-section lifting assembly includes a hydraulic telescopic rod 1 symmetrically fixedly mounted on one side of the upper end surface of the mounting plate, the two output ends of the hydraulic telescopic rod 1 are fixedly mounted with a connecting seat, the two connecting seats are rotatably connected to a sprocket, chains are fixedly mounted on both side walls of the top of the movable frame, the other ends of the two chains are fixedly mounted on the top of the corresponding connecting blocks, hydraulic telescopic rod 2 is fixedly mounted on one side of the upper end surface of the two mounting plates, a U-shaped support plate is fixedly mounted on one side of the top of the movable frame, and the output end of the hydraulic telescopic rod 2 is fixedly mounted on the bottom wall of the U-shaped support plate.

[0008] Preferably, two sides of the rack match two sides of the groove, and the groove is connected to the movable slot.

[0009] Preferably, the rack is meshingly connected to the driving gear.

[0010] Preferably, the insertion rod matches the slot.

[0011] Preferably, the T-shaped sliding block matches the T-shaped sliding groove.

[0012] Preferably, the sprocket is meshingly connected to the chain.

[0013] Beneficial effects

[0014] The utility model provides a new type of counterbalanced forklift mast. Compared with the existing technology, it has the following advantages:

[0015] (1) The utility model drives the rack to move upward through the connecting blocks on both sides of the fork. When the rack moves, it drives the driving gear to rotate. The driving gear drives the bidirectional screw to rotate. When the bidirectional screw rotates, the threads push the two moving plates to move relative to each other. When the two moving plates move, they drive the two opposite insertion rods to be inserted into the corresponding slots, thereby supporting the fork moved to the top again, effectively protecting the output end of the hydraulic telescopic rod and improving safety.

[0016] (2) The utility model is highly practical by arranging the mutual cooperation among the hydraulic telescopic rod 1, the connecting seat, the sprocket, the chain, the hydraulic telescopic rod 2 and the U-shaped support plate, thereby driving the fork to complete the multi-section lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of the external structure of the utility model;

[0018] Figure 2 This is the main view of the external structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the support assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of point A in the support assembly of the present invention;

[0021] Figure 5 This is a schematic diagram of the connecting block and rack structure of the utility model;

[0022] Figure 6 It is a schematic diagram of a multi-section lifting assembly of the present utility model.

[0023] In the figure, 1. fixed frame; 2. movable frame; 3. movable groove; 4. fork; 5. mounting plate; 100. support assembly; 101. connecting block; 102. rack; 103. groove; 104. movable groove; 105. bidirectional screw; 106. driving gear; 107. movable plate; 108. plug rod; 109. slot; 110. T-shaped slider; 111. T-shaped slide; 200. multi-section lifting assembly; 201. hydraulic telescopic rod 1; 202. connecting seat; 203. sprocket; 204. chain; 205. hydraulic telescopic rod 2; 206. U-shaped support plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1:

[0026] See also Figure 1-6 A new type of counterbalanced forklift mast comprises a fixed frame 1, a movable frame 2 is slidably connected to the inner wall of the fixed frame 1, a movable groove 3 is symmetrically opened on the inner side of the movable frame 2, a same fork 4 is slidably connected in the two movable grooves 3, a support assembly 100 is provided on one side of the top of the two movable grooves 3, a support assembly 100 is also provided between the top of the fixed frame 1 and the movable frame 2, a mounting plate 5 is symmetrically fixedly installed on the bottom of the fixed frame 1, and a multi-section lifting assembly 200 is installed on the mounting plate 5;

[0027] The supporting assembly 100 includes connecting blocks 101 symmetrically fixedly mounted on both sides of the top of the fork 4, a rack 102 is fixedly mounted on one side of the two connecting blocks 101, a groove 103 is provided on the side wall of the movable groove 3, a movable groove 104 is provided in the top of the movable frame 2, the two sides of the rack 102 match the two sides of the groove 103, the groove 103 is connected to the movable groove 104, a bidirectional screw 105 is rotatably connected in the movable groove 104, a driving gear 106 is fixedly mounted in the middle of the bidirectional screw 105, the rack 102 and the driving gear 106 are meshed and connected, a movable plate 107 is threadedly connected to the outer surface of the two ends of the bidirectional screw 105, and the opposite surfaces of the two movable plates 107 are symmetrically fixedly mounted with an insertion rod 108, and slots 109 are symmetrically provided on both sides of the movable groove 104, and the insertion rod 108 matches the slot 109. A T-shaped slider 110 is fixedly installed at the bottom of the movable plate 107, and a T-shaped slide groove 111 is symmetrically opened on the bottom wall of the movable groove 104. The T-shaped slider 110 matches the T-shaped slide groove 111. The support assembly 100 provided can effectively further support the fork 4 raised to the top. When it is necessary to further support the fork 4 raised to the top, the fork 4 drives the connecting blocks 101 on both sides to move upward. When the rack 102 on one side of the connecting block 101 drives the driving gear 106 to rotate during the movement, the driving gear 106 drives the bidirectional screw 105 to rotate, and the bidirectional screw 105 rotates and at the same time pushes the two movable plates 107 to move relative to each other. When the two movable plates 107 move, they drive several insertion rods 108 to be inserted into the corresponding slots 109, thereby further supporting the fork 4 raised to the top.

[0028] Example 2:

[0029] See also Figure 1-6, this embodiment provides a technical solution based on the first embodiment: the multi-section lifting assembly 200 includes a hydraulic telescopic rod 1 201 symmetrically fixedly mounted on one side of the upper end surface of the mounting plate 5, the input end of the hydraulic telescopic rod 1 201 is connected to the power supply through an external cable, the output ends of the two hydraulic telescopic rods 201 are fixedly mounted with a connecting seat 202, and the two connecting seats 202 are rotatably connected with a sprocket 203, and the two side walls of the top of the movable frame 2 are fixedly mounted with chains 204, the sprocket 203 and the chain 204 are meshed and connected, and the other ends of the two chains 204 are fixedly mounted on the top of the corresponding connecting block 101, and the hydraulic telescopic rod 2 205 is fixedly mounted on one side of the upper end surface of the two mounting plates 5. The input end of rod 205 is connected to the power supply through an external cable, and a U-shaped support plate 206 is fixedly installed on one side of the top of the movable frame 2. The output end of the hydraulic telescopic rod 205 is fixedly installed on the bottom wall of the U-shaped support plate 206. The multi-section lifting assembly 200 can drive the fork 4 to rise multiple layers. When it is necessary to drive the fork 4 to rise multiple layers, the sprocket 203 on the connecting seat 202 is driven upward by starting the hydraulic telescopic rod 1 201. During the upward movement, the sprocket 203 drives the fork 4 to rise to the top of the movable frame 2 along the movable frame 2 through the cooperation of the chain 204, and then the hydraulic telescopic rod 205 is started to drive the movable frame 2 to the top of the fixed frame 1, thereby driving the fork 4 to rise multiple layers.

[0030] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] When the fork 4 is lifted up, the sprocket 203 on the connecting seat 202 is driven to move upward. When the sprocket 203 moves upward, the goods on the fork 4 are driven to rise to the top of the movable frame 2 by the cooperation of the chain 204. When the rack 102 on one side of the connecting block 101 on both sides of the fork 4 drives the driving gear 106 to rotate during the movement, the driving gear 106 drives the bidirectional screw 105 to rotate. The bidirectional screw 105 rotates and the threads push the two movable plates 107 to move relative to each other. The two movable plates 107 drive several insertion rods 108 to insert into the corresponding slots 109 while moving, thereby further supporting the fork 4 raised to the top of the movable frame 2. Then the hydraulic telescopic rod 205 is started to drive the movable frame 2 to rise to the top of the fixed frame 1. The movable frame 2 raised to the top of the fixed frame 1 is supported by the support assembly 100 between the movable frame 2 and the fixed frame 1, which has strong safety.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel counterbalanced forklift mast, comprising a fixed frame (1), characterized in that: The inner wall of the fixed frame (1) is slidably connected to a movable frame (2), the inner side of the movable frame (2) is symmetrically provided with a movable groove (3), the two movable grooves (3) are slidably connected to the same fork (4), the top side of the two movable grooves (3) are both provided with a support assembly (100), the bottom of the fixed frame (1) is symmetrically fixedly installed with a mounting plate (5), and the mounting plate (5) is installed with a multi-section lifting assembly (200); The support assembly (100) comprises connecting blocks (101) symmetrically fixedly mounted on both sides of the top of the fork (4), a rack (102) is fixedly mounted on one side of the two connecting blocks (101), a groove (103) is provided on the side wall of the movable groove (3), a movable groove (104) is provided in the top of the movable frame (2), a bidirectional screw (105) is rotatably connected in the movable groove (104), a driving gear (106) is fixedly mounted in the middle of the bidirectional screw (105), a movable plate (107) is threadedly connected to the outer surface of both ends of the bidirectional screw (105), an insert rod (108) is symmetrically fixedly mounted on the opposite surfaces of the two movable plates (107), slots (109) are symmetrically provided on both sides of the movable groove (104), a T-shaped slider (110) is fixedly mounted on the bottom of the two movable plates (107), and a T-shaped slide groove (111) is symmetrically provided on the bottom wall of the movable groove (104).

2. The novel counterbalanced forklift mast according to claim 1, characterized in that: The multi-section lifting assembly (200) comprises a hydraulic telescopic rod (201) symmetrically fixedly mounted on one side of the upper end surface of the mounting plate (5); a connecting seat (202) is fixedly mounted on the output ends of the two hydraulic telescopic rods (201); a sprocket (203) is rotatably connected to the two connecting seats (202); a chain (204) is fixedly mounted on both side walls of the top of the movable frame (2); the other ends of the two chains (204) are fixedly mounted on the top of the corresponding connecting block (101); a hydraulic telescopic rod (205) is fixedly mounted on one side of the upper end surface of the two mounting plates (5); a U-shaped support plate (206) is fixedly mounted on one side of the top of the movable frame (2); and the output end of the hydraulic telescopic rod (205) is fixedly mounted on the bottom wall of the U-shaped support plate (206).

3. The novel counterbalanced forklift mast according to claim 1, characterized in that: The two sides of the rack (102) match the two sides of the groove (103), and the groove (103) is connected to the movable groove (104).

4. The novel counterbalanced forklift mast according to claim 1, characterized in that: The rack (102) is meshingly connected with the driving gear (106).

5. The novel counterbalanced forklift mast according to claim 1, characterized in that: The insertion rod (108) matches the slot (109).

6. The novel counterbalanced forklift mast according to claim 1, characterized in that: The T-shaped sliding block (110) matches the T-shaped sliding groove (111).

7. The novel counterbalanced forklift mast according to claim 2, characterized in that: The sprocket (203) is meshedly connected with the chain (204).

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