Adjustable forklift portal frame

Abstract

The utility model relates to the technical field of forklift door frames, and provides an adjustable forklift door frame which comprises a movable plate, a lifting assembly, a plurality of fixing frames, a fixing plate, an adjusting assembly, a fixing assembly and a contraction assembly. A through groove is formed in the side face of each fixing frame, the multiple fixing plates are slidably installed in the multiple fixing frames correspondingly, the two adjusting assemblies are arranged on the moving plate and used for adjusting the length of the fixing plates, the two fixing assemblies are arranged on the lifting assembly, and the two shrinking assemblies are arranged on the lifting assembly and used for adjusting the length of the fixing plates. And the fixing plate can be retracted. By means of the technical scheme, the problems that in the prior art, when the length of the forklift portal frame is adjusted, manual stretching is needed, labor is wasted, and it is difficult to adjust the length of the portal frame properly manually are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of forklift door frames, in particular to an adjustable forklift door frame. Background Art

[0002] The forklift mast is the main load-bearing structure of the forklift picking device and is the main component of the forklift. However, in existing forklift devices, the mast is fixedly installed on the forklift and the length of the mast is fixed. When lifting longer goods, the mast may have a smaller area in contact with the bottom of the goods, so the goods may tilt during lifting and fall off the mast.

[0003] A search for the above-mentioned problem revealed that among the currently disclosed prior arts, there is a height-adjustable forklift device proposed in publication number CN221796940U. When adjusting the length of the mast, the device is installed on the fixed frame by sliding a sliding rod, driving the extension rod to slide back and forth on the fixed frame, thereby extending the distance. After the extension is completed, it is fixed by a locking screw.

[0004] However, when adjusting the door frame, it is necessary to manually pull the extension rod to the position of the fixed frame, and then fix the extension rods one by one. The extension rods are heavy, and it may be laborious and difficult to manually pull the extension rods. In addition, it is difficult to accurately adjust the appropriate length of the extension rods manually. If the length is not appropriate after the goods are inserted and removed, it needs to be pulled out and readjusted, which is more troublesome. Utility Model Content

[0005] The utility model provides an adjustable forklift mast, which solves the problem in the related art that when adjusting the length of the forklift mast, manual stretching is required, which is laborious and difficult to properly adjust the mast length manually.

[0006] The technical solution of the utility model is as follows:

[0007] 14. The illustrative embodiment of the present invention relates to a forklift truck door frame, comprising a movable plate, a lifting assembly, a fixed frame, a fixed plate, an adjusting assembly, a fixing assembly and a retracting assembly, wherein the lifting assembly is arranged on the movable plate, and a plurality of fixing frames are provided, and the plurality of fixing frames are fixedly mounted on the lifting assembly, and a through slot is provided on the side of the fixing frame, and a plurality of fixing plates are provided, and the plurality of fixing plates are respectively slidably mounted in the plurality of fixing frames, and two adjusting assemblies are provided, and two adjusting assemblies are provided on the movable plate for adjusting the length of the fixing plate, and two fixing assemblies are provided, and two fixing assemblies are provided on the lifting assembly for limiting the fixing plate, and two retracting assemblies are provided, and two retracting assemblies are provided on the lifting assembly for retracting the fixed plate.

[0008] Furthermore, the lifting assembly includes a lifting frame, a cylinder 1, a lifting rod and a lifting plate. The lifting frame is fixedly installed on the movable plate, the cylinder 1 is installed on the lifting frame, the lifting rod is fixedly connected to the output end of the cylinder 1, and the lifting plate is fixedly connected to the lifting rod.

[0009] Furthermore, the adjustment assembly includes a placement rack, a mounting cover, and a motor. The placement rack is fixedly mounted on the movable plate, the mounting cover is fixedly mounted on the placement rack, and the motor is mounted on the placement rack.

[0010] Furthermore, the adjustment assembly also includes a threaded rod, a movable frame and an adjustment rod, the threaded rod is rotatably installed in the mounting cover, and the output end of the motor is fixedly connected to the side of the threaded rod, the movable frame is threadedly connected to the threaded rod, and the adjustment rod is fixedly installed on the side of the movable frame.

[0011] Furthermore, the fixing assembly includes a connecting rod, a fixing rod, a limit frame and a bolt, the connecting rod is fixedly mounted on the lifting plate, the fixing rod is fixedly mounted on the connecting rod, and a threaded hole is provided on the side of the fixing rod, the limit frame passes through the lifting plate and the fixing frame, the limit frame is fixedly connected to the side of the fixing plate, and a plurality of threaded holes and grooves are provided on the side and rear end of the limit frame, and the bolts are adapted to the threaded holes.

[0012] Furthermore, the retraction assembly includes a push rod, a mounting plate and a second cylinder. There are several push rods, several of which are fixedly mounted between several of the fixing plates, and the push rods are located in the through groove of the fixing frame. The mounting plate is fixedly mounted on the side of the lifting frame, and the second cylinder is mounted on the mounting plate.

[0013] Furthermore, a positioning frame is fixedly installed on the movable plate, and the positioning frame is located directly below the lifting plate.

[0014] Furthermore, when the bottom end of the lifting plate contacts the top end of the positioning frame, the adjusting rod and the groove of the limiting frame are located at the same horizontal position.

[0015] Furthermore, a sliding groove is provided on the inner side of the lifting frame, and the lifting plate is slidably installed in the sliding groove of the lifting frame.

[0016] Furthermore, a plurality of moving wheels are installed at the bottom end of the moving plate.

[0017] The working principle and beneficial effects of the utility model are as follows:

[0018] 1. In the present invention, when adjusting the door frame, the limiting frame can be pushed by the adjusting component, and the limiting frame pushes the fixing plate to move in the fixing frame, so that the length can be adjusted. After the adjustment is completed, the fixing plate and the fixing frame can be moved up and down on the lifting frame by the lifting component, so that the height can be adjusted.

[0019] 2. In the present invention, after use, the fixing plate can be pushed to move in the opposite direction in the fixing frame by retracting the assembly, thereby pushing the fixing plate into the fixing frame, or retracting the length thereof;

[0020] To sum up, the forklift mast can adjust the length and height of the fixed plate through the mutual cooperation between the moving plate, lifting assembly, fixed frame, fixed plate, adjustment assembly, fixing assembly and retraction assembly. Compared with the existing technology, it does not need to be stretched manually one by one, which saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the lifting assembly of the utility model;

[0024] Figure 3 This is a schematic structural diagram of the adjustment component of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the lifting plate and the fixing assembly of the utility model;

[0026] Figure 5 For this utility model Figure 4 A partial enlarged schematic diagram of point A in the middle;

[0027] Figure 6 It is a schematic diagram of the structure of the fixing frame, fixing plate, lifting frame, lifting plate and shrinking assembly of the utility model.

[0028] In the figure: 1. movable plate; 2. fixed frame; 3. fixed plate; 4. positioning frame; 5. movable wheel; 101. lifting frame; 102. cylinder one; 103. lifting rod; 104. lifting plate; 201. placement frame; 202. mounting cover; 203. motor; 204. threaded rod; 205. movable frame; 206. adjusting rod; 301. connecting rod; 302. fixed rod; 303. limiting frame; 304. bolt; 401. push rod; 402. mounting plate; 403. cylinder two. DETAILED DESCRIPTION

[0029] The following will be combined with 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.

[0030] like Figures 1 to 6 As shown, this embodiment proposes an adjustable forklift door frame, including a mobile plate 1, a lifting component, a fixed frame 2, a fixed plate 3, an adjustment component, a fixing component and a retraction component. The lifting component is arranged on the mobile plate 1, and the fixed frame 2 is provided with a plurality of fixed frames 2, and the plurality of fixed frames 2 are fixedly mounted on the lifting component, and a through slot is opened on the side of the fixed frame 2, and the plurality of fixed plates 3 are provided, and the plurality of fixed plates 3 are respectively slidably mounted in the plurality of fixed frames 2. There are two adjustment components, and the two adjustment components are arranged on the mobile plate 1 for adjusting the length of the fixed plate 3. There are two fixed components, and the two fixed components are set On the lifting component, it is used to limit the fixed plate 3. Two retraction components are provided. The two retraction components are provided on the lifting component and are used to retract the fixed plate 3. Specifically, a number of moving wheels 5 are installed at the bottom end of the movable plate 1 to move the device to the cargo. If there are a lot of cargo, the fixed plate 3 can be driven to move in the fixed frame 2 by the adjusting component to adjust the length. The fixed plate 3 is fixed by the fixing component, and then the fixed frame 2 and the fixed plate 3 are inserted into the bottom end of the cargo. The cargo is driven to rise by the lifting component. After placement, the fixed plate 3 can be inserted into the fixed frame 2 again by the retraction component.

[0031] In this embodiment, the lifting assembly includes a lifting frame 101, a cylinder 102, a lifting rod 103 and a lifting plate 104. The lifting frame 101 is fixedly installed on the movable plate 1, the cylinder 102 is installed on the lifting frame 101, the lifting rod 103 is fixedly connected to the output end of the cylinder 102, and the lifting plate 104 is fixedly connected to the lifting rod 103. When the cylinder 102 is started, the cylinder 102 drives the connecting rod 301 and the lifting plate 104 to move in the height direction, and a slide groove is opened on the inner side of the lifting frame 101, and the lifting plate 104 is slidably installed in the slide groove of the lifting frame 101, thereby driving the goods on the fixed plate 3 and the fixed frame 2 to move upward.

[0032] In this embodiment, the adjustment assembly includes a placement rack 201 , a mounting cover 202 and a motor 203 . The placement rack 201 is fixedly mounted on the movable plate 1 , the mounting cover 202 is fixedly mounted on the placement rack 201 , and the motor 203 is mounted on the placement rack 201 .

[0033] In this embodiment, the adjustment assembly further includes a threaded rod 204, a movable frame 205 and an adjustment rod 206. The threaded rod 204 is rotatably mounted in the mounting cover 202, and the output end of the motor 203 is fixedly connected to the side of the threaded rod 204. The movable frame 205 is threadedly connected to the threaded rod 204. The adjustment rod 206 is fixedly mounted on the side of the movable frame 205. When the length of the forklift mast needs to be adjusted, the lifting plate 104 is first driven to move downward, because the positioning frame 4 is fixedly mounted on the movable plate 1, and the positioning frame 4 is fixedly mounted on the movable plate 1. The positioning frame 4 is located directly below the lifting plate 104, and when the bottom end of the lifting plate 104 contacts the top of the positioning frame 4, the adjusting rod 206 and the groove of the limiting frame 303 are at the same horizontal position, so that the motor 203 can be started, and the motor 203 drives the threaded rod 204 to rotate in the mounting cover 202, thereby driving the movable frame 205 to move on the threaded rod 204, and driving the adjusting rod 206 to move forward so that it supports the groove of the limiting frame 303, thereby pushing the fixed plate 3 to move in the fixed frame 2 to increase the length.

[0034] In this embodiment, the fixing assembly includes a connecting rod 301, a fixing rod 302, a limiting frame 303 and a bolt 304. The connecting rod 301 is fixedly installed on the lifting plate 104, the fixing rod 302 is fixedly installed on the connecting rod 301, and a threaded hole is provided on the side of the fixing rod 302. The limiting frame 303 passes through the lifting plate 104 and the fixing frame 2. The limiting frame 303 is fixedly connected to the side of the fixing plate 3, and a plurality of threaded holes and grooves are provided on the side and rear end of the limiting frame 303. The bolt 304 is adapted to the threaded hole. After the length is adjusted, the bolt 304 can be threaded into the threaded hole of the fixing rod 302 and at the same time threaded into the corresponding threaded hole of the limiting frame 303 to fix it.

[0035] In this embodiment, the retraction assembly includes a push rod 401, a mounting plate 402 and a second cylinder 403. Several push rods 401 are provided. Several push rods 401 are fixedly installed between several fixed plates 3, and the push rods 401 are located in the through groove of the fixed frame 2. The mounting plate 402 is fixedly installed on the side of the lifting frame 101. The second cylinder 403 is installed on the mounting plate 402. When it is necessary to retract the fixed plate 3 in the fixed frame 2, the second cylinder 403 can be started. The second cylinder 403 pushes the push rod 401 to move backward, thereby driving the fixed plate 3 to move backward in the fixed frame 2.

[0036] In this embodiment, when the forklift mast is transporting goods, the device can be first moved to the goods, and then the fixing plate 3 and the fixing frame 2 can be inserted into the bottom end of the goods. If the goods are large, the motor 203 can be started, and the motor 203 drives the threaded rod 204 to rotate in the mounting cover 202, thereby driving the movable frame 205 to move on the threaded rod 204, and driving the adjusting rod 206 to move forward so that it can support the groove of the limiting frame 303, thereby pushing the fixing plate 3 to move in the fixing frame 2 to increase the length. After the adjustment is completed, the bolt 304 can be threadedly connected to the threaded hole of the fixing rod 302, and at the same time threadedly connected to the limiting frame 303 is fixed in the corresponding threaded hole of 303, thereby preventing the fixing plate 3 from moving in the fixing frame 2 when lifting the goods, and then start the cylinder 102, which drives the connecting rod 301 and the lifting plate 104 to move upward, and the lifting plate 104 thereby drives the fixing plate 3 and the fixing frame 2 to move upward, and then the goods are placed. After placement, the fixing plate 3 and the fixing frame 2 are driven to move downward until the lifting plate 104 contacts the positioning frame 4, and then start the cylinder 2 403, which pushes the push rod 401 to move backward, thereby driving the fixing plate 3 to move backward in the fixing frame 2, and shrinking the fixing plate 3 into the fixing frame 2.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable forklift mast, characterized in that: include: Mobile plate (1); A lifting assembly, the lifting assembly being arranged on the movable plate (1); A fixing frame (2), wherein a plurality of fixing frames (2) are provided, wherein the plurality of fixing frames (2) are fixedly mounted on the lifting assembly, and a through slot is provided on a side surface of the fixing frame (2); A fixing plate (3), wherein a plurality of fixing plates (3) are provided, and the plurality of fixing plates (3) are respectively slidably mounted in the plurality of fixing frames (2); An adjustment component, wherein two adjustment components are provided, and the two adjustment components are provided on the movable plate (1) and are used to adjust the length of the fixed plate (3); A fixing assembly, wherein two fixing assemblies are provided, and the two fixing assemblies are provided on the lifting assembly and are used to limit the fixing plate (3); A retraction assembly, wherein two retraction assemblies are provided, and the two retraction assemblies are provided on the lifting assembly and are used to retract the fixed plate (3).

2. The adjustable forklift mast according to claim 1, characterized in that: The lifting assembly comprises: A lifting frame (101), the lifting frame (101) is fixedly mounted on the movable plate (1); Cylinder one (102), the cylinder one (102) is installed on the lifting frame (101); A lifting rod (103), the lifting rod (103) being fixedly connected to the output end of the cylinder 1 (102); A lifting plate (104), wherein the lifting plate (104) is fixedly connected to the lifting rod (103).

3. The adjustable forklift mast according to claim 2, characterized in that: The adjustment component includes: A placement rack (201), the placement rack (201) being fixedly mounted on the movable plate (1); A mounting cover (202), wherein the mounting cover (202) is fixedly mounted on the placement rack (201); A motor (203), wherein the motor (203) is mounted on the placement rack (201).

4. The adjustable forklift mast according to claim 3, characterized in that: The adjustment component also includes: a threaded rod (204), the threaded rod (204) being rotatably mounted in the mounting cover (202), and the output end of the motor (203) being fixedly connected to a side surface of the threaded rod (204); A movable frame (205), the movable frame (205) being threadedly connected to the threaded rod (204); An adjusting rod (206) is fixedly mounted on a side of the movable frame (205).

5. The adjustable forklift mast according to claim 4, characterized in that: The fixing assembly includes: A connecting rod (301), the connecting rod (301) being fixedly mounted on the lifting plate (104); A fixing rod (302), the fixing rod (302) being fixedly mounted on the connecting rod (301), and a threaded hole being provided on a side surface of the fixing rod (302); A limiting frame (303), the limiting frame (303) passes through the lifting plate (104) and the fixing frame (2), the limiting frame (303) is fixedly connected to the side of the fixing plate (3), and a plurality of threaded holes and grooves are provided on the side and rear end of the limiting frame (303); A bolt (304), wherein the bolt (304) is adapted to the threaded hole.

6. The adjustable forklift mast according to claim 5, characterized in that: The shrinking assembly comprises: A plurality of push rods (401) are provided, wherein the push rods (401) are fixedly installed between the plurality of fixing plates (3), and the push rods (401) are located in the through slot of the fixing frame (2); A mounting plate (402), the mounting plate (402) being fixedly mounted on a side surface of the lifting frame (101); Cylinder 2 (403), the cylinder 2 (403) is mounted on the mounting plate (402).

7. The adjustable forklift mast according to claim 6, characterized in that: A positioning frame (4) is fixedly mounted on the movable plate (1), and the positioning frame (4) is located directly below the lifting plate (104).

8. The adjustable forklift mast according to claim 7, characterized in that: When the bottom end of the lifting plate (104) contacts the top end of the positioning frame (4), the adjusting rod (206) and the groove of the limiting frame (303) are located at the same horizontal position.

9. The adjustable forklift mast according to claim 8, characterized in that: A sliding groove is provided on the inner side of the lifting frame (101), and the lifting plate (104) is slidably mounted in the sliding groove of the lifting frame (101).

10. The adjustable forklift mast according to claim 9, characterized in that: A plurality of moving wheels (5) are installed at the bottom end of the moving plate (1).

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