A manually retractable vehicle frame structure

Abstract

The utility model discloses a kind of manually retractable frame structures, it is related to flatbed truck frame structure technical field, including frame main body, adjustable beam assembly and manual adjusting assembly.The utility model is cooperated by adjustable beam assembly and manual adjusting assembly, manual adjusting assembly adopts the mode of threaded screw rod by thread rotation displacement, to provide the horizontal direction sliding displacement of adjustable beam assembly at the both ends of middle crossbeam, this mode can meet the bearing area of expanding frame at the same time, because manual adjusting assembly is mechanically interfitting and works, so that this mode can reduce cost cost, and because it is all detachable mechanical parts, can be quickly disassembled and replaced after damage, without professional personnel continues to operate quickly, improve maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of flatbed transport vehicle frame structure, specifically a manually retractable frame structure. Background Technology

[0002] The frame of a flatbed truck is mainly composed of two longitudinal beams and several sets of crossbeams welded above the two longitudinal beams. The structure of this frame is simple, the manufacturing level of the longitudinal beams and crossbeams is mature, and the load-bearing capacity achieved after welding is strong. Therefore, this type of frame structure is the standard model for most flatbed truck frames.

[0003] Currently, single-carriage flatbed transporters are more popular among companies because their overhead load-bearing area is fixed. To increase the load-bearing area above the frame and thus increase the transport capacity per batch, the traditional solution is to use hydraulic devices. Hydraulic cylinders are used to move the side beams on both sides of the frame to meet customer needs for increased load-bearing area. However, this requires multiple sets of hydraulic cylinders to move the side beams stably, which increases the overall cost of the frame structure and reduces customer acceptance. Utility Model Content

[0004] The purpose of this invention is to provide a manually retractable vehicle frame structure to solve the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a manually retractable frame structure, comprising a frame body, an adjustable beam assembly, and a manual adjustment assembly. The frame body includes a fixed beam and a middle crossbeam welded above the fixed beam. The number of middle crossbeams is eighteen, and the two ends of each middle crossbeam are through-holes. Each group of middle crossbeams is equidistantly arranged above the fixed beam. The adjustable beam assembly is located at both ends of the middle crossbeam. The adjustable beam assembly is used to adjust the width of the middle crossbeam, thereby widening the usable area of ​​the load-bearing surface of the middle crossbeam. The manual adjustment assembly is located inside the adjustable beam assembly and the middle crossbeam. The manual adjustment assembly is used to provide manual operation for adjusting the position of the adjustable beam assembly inside the middle crossbeam.

[0006] Preferably, the adjustable beam assembly includes mounting beams that are horizontally slidably disposed on both sides inside each group of middle crossbeams. Each group of middle crossbeams has two sets of mounting beams slidably disposed inside. The outer ends of the mounting beams are welded with side beams. There are a total of two sets of side beams. The two sets of side beams are respectively disposed at the outer ends of the middle crossbeams. The top ends of the middle crossbeams and the top ends of the side beams are on the same horizontal line. Holes are opened inside the side beams.

[0007] Preferably, the manual adjustment component includes positioning blocks welded to the outer wall of the middle crossbeam. There are two sets of positioning blocks, which are spaced apart at both ends of the outer wall of the middle crossbeam. The positioning blocks have circular holes inside.

[0008] Preferably, the manual adjustment assembly further includes a nut assembly welded inside the circular hole of the positioning block, the interior of the nut assembly being through-hole, and the inner wall of the nut assembly having a threaded groove.

[0009] Preferably, the manual adjustment assembly further includes a fixing sleeve welded inside the side beam hole, the fixing sleeve having a through-hole shape, and a bearing welded to the inner wall of the fixing sleeve.

[0010] Preferably, the manual adjustment assembly further includes a threaded screw with one end disposed in the fixed sleeve bearing, and the other end of the threaded screw being threadedly rotatably disposed in the threaded groove of the nut pair. A limit block is welded to one side of the outer wall of the threaded screw, and the limit block is disposed on one side of the outer wall of the positioning block. The size of the limit block is larger than the size of the through hole inside the positioning block. The limit block is used to prevent the threaded screw from falling out inside the positioning block.

[0011] Preferably, the assembly further includes: a detachable handle assembly disposed on the other side of the outer wall of the threaded screw, for a person to hold and rotate the threaded screw. The detachable handle assembly includes a limiting hexagonal nut block welded to the other side of the outer wall of the threaded screw. A manual crank is disposed on the other side of the outer wall of the threaded screw. A plug-in sleeve is welded to the outer wall of the manual crank. The plug-in sleeve has a groove adapted to the limiting hexagonal nut block. The plug-in sleeve is horizontally slidably inserted into the outer side of the limiting hexagonal nut block through the groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This manually retractable frame structure uses an adjustable beam assembly and a manual adjustment assembly in conjunction. The manual adjustment assembly uses a threaded screw to provide horizontal sliding displacement of the adjustable beam assembly at both ends of the middle crossbeam through threaded rotation. This method can increase the load-bearing area of ​​the frame while reducing costs because the manual adjustment assembly consists of mechanical parts that work together. Furthermore, since all parts are detachable mechanical parts, they can be quickly disassembled and replaced after damage without the need for professional personnel, thus improving maintenance efficiency.

[0013] 2. The manually retractable frame structure works in conjunction with a threaded screw and a detachable handlebar assembly. The detachable handlebar assembly and the threaded screw are connected by a plug-in mechanism, which allows the operator to rotate the threaded screw in a labor-saving manner and to quickly insert and remove it. After the threaded screw is rotated, it can be pulled out to reduce the overall width of the frame and prevent the detachable handlebar assembly from obstructing the operator's movement. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present utility model Figure 1 Cross-sectional three-dimensional structural schematic diagram; Figure 3 This is a three-dimensional structural diagram of the detachable handle assembly of this utility model.

[0015] In the picture: 1. Fixed beam; 2. Middle beam; 3. Adjustable beam assembly; 301. Mounting crossbeam; 302. Side beam; 4. Manual adjustment assembly; 401. Positioning block; 402. Nut pair; 403. Fixing sleeve; 404. Threaded screw; 405. Limit block; 5. Detachable handle assembly; 501. Limiting hexagonal nut block; 502. Manual crank handle; 503. Insertion sleeve. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0017] Please see Figures 1-3 This utility model provides a technical solution: a manually retractable frame structure, including: a frame body and an adjustable beam assembly 3; The main body of the frame includes a fixed beam 1 and a middle crossbeam 2 welded above the fixed beam 1. There are eighteen sets of middle crossbeams 2. The two ends of the middle crossbeam 2 are through. Each set of middle crossbeams 2 is equidistantly arranged above the fixed beam 1. Adjustable beam assembly 3 is installed at both ends inside the middle crossbeam 2. Adjustable beam assembly 3 is used to adjust the width of the middle crossbeam 2, thereby widening the usable area of ​​the bearing surface of the middle crossbeam 2. Adjustable beam assembly 3 includes mounting crossbeams 301 that are horizontally slidably installed on both sides inside each group of middle crossbeams 2. Two sets of mounting crossbeams 301 are slidably installed inside each group of middle crossbeams 2. Side beams 302 are welded to the outer ends of the mounting crossbeams 301. There are a total of two sets of side beams 302. The two sets of side beams 302 are respectively installed at both ends outside the middle crossbeam 2. The top of the middle crossbeam 2 and the top of the side beams 302 are on the same horizontal line. Holes are opened inside the side beams 302.

[0018] Specifically, the central crossbeam 2 and the fixed beam 1 are vertically cross-welded to achieve the overall structural strength of the frame. Because the two ends of the central crossbeam 2 are through, the mounting beam 301 inside the central crossbeam 2 can slide horizontally within it. When the mounting beam 301 slides horizontally outward within the central crossbeam 2, the side beam 302 is welded to the mounting beam 301, which allows the side beam 302 to change its horizontal position within the central crossbeam 2 through the mounting beam 301. This allows the area that the frame can bear to the load to be adjusted by changing the position of the side beam 302. Example

[0019] Please see Figures 1-3 This utility model provides a technical solution: a manually retractable frame structure, including: a manual adjustment component 4; The manual adjustment component 4 is located inside the adjustable beam assembly 3 and the middle crossbeam 2. The manual adjustment component 4 provides manual operation for adjusting the position of the adjustable beam assembly 3 within the middle crossbeam 2. The manual adjustment component 4 includes two sets of positioning blocks 401 welded to the outer wall of the middle crossbeam 2. These two sets of positioning blocks 401 are spaced apart at both ends of the outer wall of the middle crossbeam 2. Each positioning block 401 has a circular hole inside. A nut pair 402 is welded inside the circular hole of the positioning block 401. The nut pair 402 has a through-hole design, and its inner wall has a threaded groove. The fixing sleeve 403 is located inside the hole of the side beam 302. The interior of the fixing sleeve 403 is through. A bearing is welded on the inner wall of the fixing sleeve 403. One end of the threaded rod 404 is set in the bearing of the fixing sleeve 403. The other end of the threaded rod 404 is threaded and rotated in the thread groove of the nut pair 402. A limit block 405 is welded to one side of the outer wall of the threaded rod 404. The limit block 405 is set on one side of the outer wall of the positioning block 401. The size of the limit block 405 is larger than the size of the through hole inside the positioning block 401. The limit block 405 is used to prevent the threaded rod 404 from falling out inside the positioning block 401.

[0020] Specifically, when it is necessary to adjust the side beam 302 by installing the crossbeam 301 and moving it inside the middle crossbeam 2 to the designated position required by the personnel, and without any positional deviation, because a fixing sleeve 403 is welded inside the hole of the side beam 302, and the threaded rod 404 is fixed in the bearing of the fixing sleeve 403, the threaded rod 404 can achieve continuous clockwise rotation with reference to the center of the bearing of the fixing sleeve 403. During the clockwise rotation of the threaded rod 404, because the nut pair 402 is welded in the hole of the positioning block 401, and the positioning block 401 is welded to the middle crossbeam 2, the positioning block 401 and the internal nut pair 402 are connected to the machine. The main body of the frame forms an integral whole. The threaded screw 404 is threadedly connected to the inside of the nut pair 402. During the clockwise rotation of the threaded screw 404, the threaded screw 404 can rotate in the thread groove of the nut pair 402, thus changing its position. This allows the side beam 302 to quickly stop after being displaced outward to a designated position. Furthermore, the side beam 302 is welded to the mounting beam 301, which allows the mounting beam 301 to slide horizontally within the middle beam 2, providing stability during the displacement of the side beam 302. When the threaded screw 404 rotates counterclockwise, the side beam 302 can quickly stop after being displaced inward to a designated position. Example

[0021] Please see Figures 1-3 This utility model provides a technical solution: a manually retractable frame structure, including: a detachable handlebar assembly 5; A detachable handle assembly 5 is located on the other side of the outer wall of the threaded screw 404 for personnel to hold and rotate the threaded screw 404. The detachable handle assembly 5 includes a limiting hexagonal nut block 501 welded to the other side of the outer wall of the threaded screw 404. A manual crank 502 is provided on the other side of the outer wall of the threaded screw 404. A plug-in sleeve 503 is welded to the outer wall of the manual crank 502. The plug-in sleeve 503 has a groove that matches the limiting hexagonal nut block 501. The plug-in sleeve 503 is horizontally slidably inserted into the outer wall of the limiting hexagonal nut block 501 through the groove.

[0022] Specifically, to facilitate the rotation of the threaded screw 404, a limiting hexagonal nut block 501 is welded to one side of the outer wall of the threaded screw 404. At this time, the plug sleeve 503, which is adapted to the limiting hexagonal nut block 501, is horizontally slidably inserted into the outside of the limiting hexagonal nut block 501. After the plug sleeve 503 is inserted into the outside of the limiting hexagonal nut block 501, because it is a flower-shaped connection, the threaded screw 404 connected to the limiting hexagonal nut block 501 can be rotated synchronously by rotating the manual crank 502 welded to the outer wall of the plug sleeve 503. Because the limiting hexagonal nut block 501 and the plug sleeve 503 are plug-in connected, it is easy to install and disassemble, providing convenience for personnel.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A manually retractable vehicle frame structure, comprising a frame body; characterized in that: The frame body includes a fixed beam (1) and a middle crossbeam (2) welded above the fixed beam (1). There are eighteen sets of middle crossbeams (2). The two ends of the middle crossbeams (2) are through. Each set of middle crossbeams (2) is equidistantly arranged above the fixed beam (1). Adjustable beam assembly (3), the adjustable beam assembly (3) is set at both ends inside the middle cross beam (2), the adjustable beam assembly (3) is used to adjust the width of the middle cross beam (2), thereby widening the usable area of ​​the bearing surface of the middle cross beam (2); The manual adjustment component (4) is located inside the adjustable beam assembly (3) and the middle crossbeam (2). The manual adjustment component (4) is used to provide manual operation for personnel to adjust the position of the adjustable beam assembly (3) inside the middle crossbeam (2).

2. The manually retractable frame structure according to claim 1, characterized in that: The adjustable beam assembly (3) includes mounting beams (301) that are horizontally slidably disposed on both sides inside each set of middle beams (2). Each set of middle beams (2) has two sets of mounting beams (301) slidably disposed inside. The outer ends of the mounting beams (301) are welded with side beams (302). There are a total of two sets of side beams (302). The two sets of side beams (302) are respectively disposed at the outer ends of the middle beams (2). The top of the middle beams (2) and the top of the side beams (302) are on the same horizontal line. Holes are opened inside the side beams (302).

3. The manually retractable frame structure according to claim 1, characterized in that: The manual adjustment component (4) includes a positioning block (401) welded to the outer wall of the middle crossbeam (2). There are two sets of positioning blocks (401), and the two sets of positioning blocks (401) are spaced apart at both ends of the outer wall of the middle crossbeam (2). The positioning block (401) has a round hole inside.

4. The manually retractable frame structure according to claim 3, characterized in that: The manual adjustment component (4) also includes a nut pair (402) welded inside the round hole of the positioning block (401). The interior of the nut pair (402) is through, and a threaded groove is provided on the inner wall of the nut pair (402).

5. The manually retractable frame structure according to claim 4, characterized in that: The manual adjustment assembly (4) also includes a fixing sleeve (403) welded inside the hole of the side beam (302), the inside of the fixing sleeve (403) is through, and a bearing is welded on the inner wall of the fixing sleeve (403).

6. The manually retractable frame structure according to claim 5, characterized in that: The manual adjustment assembly (4) further includes a threaded screw (404) with one end set in the bearing of the fixed sleeve (403), and the other end of the threaded screw (404) is threaded and rotatably set in the thread groove of the nut pair (402). A limit block (405) is welded to one side of the outer wall of the threaded screw (404). The limit block (405) is set on one side of the outer wall of the positioning block (401). The size of the limit block (405) is larger than the size of the through hole inside the positioning block (401). The limit block (405) is used to prevent the threaded screw (404) from falling out inside the positioning block (401).

7. The manually retractable frame structure according to claim 1, characterized in that: Also includes: A detachable handle assembly (5) is disposed on the other side of the outer wall of the threaded screw (404) for a person to hold and provide rotation of the threaded screw (404); The detachable handle assembly (5) includes a limiting hexagonal nut block (501) welded to the other side of the outer wall of the threaded screw (404). A manual crank (502) is provided on the other side of the outer wall of the threaded screw (404). A plug sleeve (503) is welded to the outer wall of the manual crank (502). The plug sleeve (503) has a groove that matches the limiting hexagonal nut block (501). The plug sleeve (503) is horizontally slidably inserted into the outside of the limiting hexagonal nut block (501) through the groove.

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