Movable jig frame

Abstract

The utility model provides a movable jig frame, which belongs to the technical field of ships and comprises a body, the bottom ends of four leg parts of the body are mutually fixed through four connecting pieces, threaded through holes are formed in the middle parts of the connecting pieces, and the threaded through holes are matched with guide sleeves, adjusting screw rods and supporting legs to form adjustable floor supports so as to prevent displacement of the jig frame. Through holes are formed in the non-adjacent ends of the connecting pieces, the through holes are matched with the shaft sleeves, the guide shafts, the universal wheels and the springs to form an elastic moving device, and the device can enable the jig frame to move. When a plurality of jig frames are needed to support a workpiece, the plurality of jig frames can be assembled into a square matrix by matching the connecting pipes with the bolts, and the square matrix can move simultaneously. Movement of the jig frame is achieved through the elastic moving device, damping and buffering are achieved through the spring when the jig frame passes through the uneven ground, and damage caused by friction and collision between a workpiece and the upper surface of the jig frame is avoided; the whole structure is simple, and a single person can move the jig frame and assemble a plurality of jig frames; the whole jig frame is made of carbon steel, so that the stability of the jig frame is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of ships, and in particular relates to a movable tire frame. Background Art

[0002] At present, the shipbuilding field requires a frame for plate and small group welding. Generally, welding stations are dedicated to welding, and repair and grinding stations are responsible for the follow-up work of the workpiece. This can improve the efficiency of the welding station. Otherwise, the welding station will be occupied for a long time, which will lead to low production efficiency and other consequences. The repair and grinding station may be adjusted according to the actual available space of the factory. When the available space of the factory is small, the repair and grinding station can be moved to the open space outside the factory.

[0003] But if it is placed directly on the ground, there will be the following problems:

[0004] 1. The reverse side of the workpiece needs to be lifted up and turned over before it can be repaired and polished;

[0005] 2. The aluminum profile is in direct contact with the ground, which will cause the workpiece to be contaminated, and if there are small stones on the ground, it will also damage the workpiece itself.

[0006] 3. Occupies ground space, which is not accessible to pedestrians

[0007] Therefore, currently most people use tire frames to solve the above problems, but traditional tire frames cannot be moved freely and need to be lifted by forklifts and cranes to move. Therefore, there is an urgent need to design a tire frame with a simple structure that can be easily pushed by people. Utility Model Content

[0008] The utility model aims to provide a movable tire frame, characterized in that it comprises a main body, the main body comprises four legs composed of square steel pipes, the bottom ends of the four legs are connected to each other through four connecting pieces, one end of the four connecting pieces are all fixed with elastic moving devices for facilitating the movement of the tire frame, and the middle parts of the four connecting pieces are all movably connected with fixing devices for limiting the movement of the tire frame;

[0009] The elastic moving device includes a universal wheel, a guide shaft, a sleeve and a spring. A through hole is provided at one end of the connecting piece, and the sleeve is inserted into the through hole. One end of the guide shaft is fixed to the universal wheel, and the other end passes through the sleeve upward and extends out of the connecting piece. The spring is arranged between the universal wheel and the bottom end of the sleeve.

[0010] Furthermore, the fixing device includes an adjusting handle and a supporting foot fixed to the bottom end thereof, the outer periphery of the adjusting handle is provided with an external thread, the middle part of the connecting piece is provided with a threaded through hole matching the external thread, and the adjusting handle is threadedly connected to the connecting piece.

[0011] Furthermore, a guide sleeve is provided on the outer periphery of the adjustment handle at the bottom of the threaded through hole, and a reinforcing rib connected to the bottom of the connecting piece is provided on the outer periphery of the guide sleeve.

[0012] Furthermore, a limiting plate is provided on the top of the universal wheel, a square extension is extended from the outer periphery of the bottom end of the sleeve, and the side lengths of the limiting plate and the square extension are greater than or equal to the outer diameter of the spring.

[0013] Furthermore, the connecting piece is an "L"-shaped connecting piece, and reinforcing ribs are connected between the horizontal plate and the vertical plate of the "L"-shaped connecting piece.

[0014] Furthermore, it also includes a "cross" connecting pipe, and the four ends of the "cross" connecting pipe are respectively fixed to the four connecting pieces.

[0015] Furthermore, there are multiple tire frames, and the multiple tire frames are connected to each other through multiple connecting pipes and bolts.

[0016] Compared with the prior art, the beneficial effects of the utility model are mainly reflected in:

[0017] 1. The utility model realizes the movement of the tire frame through an elastic moving device, and realizes shock absorption and buffering when passing through uneven ground through a spring, thereby preventing the workpiece from rubbing and colliding with the upper surface of the tire frame to cause damage.

[0018] 2. The utility model has a simple overall structure, and a plurality of steps can be formed into an array to realize the carrying of large-volume workpieces. One person can complete the assembly of a plurality of tire frames and the movement of a single tire frame, which is very easy and convenient.

[0019] 3. The tire frame of the utility model is made of carbon steel as a whole, which increases the strength of the structure and ensures the overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the tire frame of the utility model.

[0021] Figure 2 It is a schematic diagram of assembling multiple tire frames of the utility model. DETAILED DESCRIPTION

[0022] A movable tire frame of the utility model will be described in more detail below in conjunction with a schematic diagram, in which a preferred embodiment of the utility model is shown. It should be understood that those skilled in the art can modify the utility model described herein and still achieve the beneficial effects of the utility model. Therefore, the following description should be understood as being widely known to those skilled in the art and not as a limitation to the utility model.

[0023] like Figure 1As shown, a movable tire frame includes a main body 1 of the tire frame, and the main body 1 includes a load-bearing plate for placing plates, and legs are arranged at the four corners of the bottom of the load-bearing plate through square steel pipes, and the four legs are interconnected by four "L"-shaped connectors 2. The "L"-shaped connector 2 includes a horizontal plate located at the top and a vertical plate located on the side of the rear side of the horizontal plate, and the four connectors are fixed to each other by connecting the back plate at the end. Among them, the four legs are fixed to the four horizontal plates of the "L"-shaped connectors 2 respectively, and the specific positions are respectively on the upper surface of the non-adjacent end of the connector near the end. Adjacent to it, a through hole is arranged on the end surface of the non-adjacent end of the connector, and an elastic moving device extending to the bottom is fixed to the through hole, and a fixing device is fixed to the middle of the horizontal plate of the connector.

[0024] The elastic moving device includes a universal wheel 5, a guide shaft 4, a sleeve 3 and a spring 6, wherein the sleeve 3 is inserted into the through hole and extends downward, and a square extension is extended outward from the outer periphery of the end of the sleeve 3 located below the bottom surface of the horizontal plate, and the side length of the extension is greater than the diameter of the through hole (not shown in the figure), which is used to limit the upward displacement of the sleeve 3. The bottom end of the guide shaft 4 is fixed to the top of the universal wheel 5, and the top passes through the sleeve 3 and extends out of the upper surface of the horizontal plate. A square limiting plate is fixed on the top of the universal wheel 5, and the bottom end of the guide shaft 4 is fixed at the center of the limiting plate. A spring 6 is arranged on its outer periphery, and the two ends of the spring 6 respectively abut the square extension and the limiting plate to realize the elastic function of the elastic moving device. It should be noted that the side lengths of the square extension and the square limiting plate can be the same or different, but their side lengths are greater than or equal to the outer diameter of the spring.

[0025] The fixing device includes an adjustment handle 7, a support foot 8 and a guide sleeve 9, wherein the adjustment handle 7 is an "L"-shaped adjustment handle, a threaded through hole is provided in the middle of the horizontal plate of the connecting piece, and an external thread that matches the threaded through hole is provided on the outer periphery of the vertical rod of the adjustment handle 7, and the adjustment handle 7 is movably connected to the connecting piece through the thread. The support foot 8 is fixed to the bottom end of the vertical rod of the adjustment handle 7, which is approximately trapezoidal, except that the outer periphery of the side is arc-shaped, and the upper bottom surface and the lower bottom surface are flat, which is convenient for fixing, stopping and supporting.

[0026] In order to make the bottom surface of the support foot 8 parallel to the ground or as parallel as possible, we set a guide sleeve 9 at the bottom of the threaded through hole, the same threaded through hole is set inside the guide sleeve 9, and four reinforcing ribs fixed to the bottom surface of the connecting member cross plate are set at equal intervals on the outer circumference of the guide sleeve 9 to make the connection of the guide sleeve 9 more stable. The setting of the guide sleeve 9 guides the vertical movement of the support foot 8 when the adjustment handle 7 is screwed.

[0027] In order to enhance the stability of the tire frame, we set a square steel pipe connected downwardly in the middle of the load-bearing plate, the middle parts of the four legs are connected to each other through the square pipe, and the middle and bottom of the square steel pipe are fixed to the square pipe and the vertical plate of the connecting piece through a "cross" connecting pipe 10 respectively.

[0028] The tire frame of the utility model is made of carbon steel as a whole to ensure the stability of the overall step.

[0029] Directions:

[0030] When using the tire frame, first loosen the support foot 8 by twisting the crossbar of the adjustment handle 7. At this time, the universal wheel 5 bears the gravity of the tire frame itself. The elastic force of the selected spring 6 is greater than the gravity of the tire frame itself, so the compression stroke of the spring 6 is within a safe range and the compression spring will not be compacted. People can push it easily.

[0031] When it is placed in place, the supporting feet 8 are tightened, and the supporting feet 8 are pressed tightly against the ground. Moreover, the four supporting feet are independent. When the ground is uneven, the horizontal heights of the supporting feet 8 can be adjusted separately to adapt to the ground of different heights. The four supporting feet are all down to earth.

[0032] refer to Figure 2 When the workpiece is large, the number of tire frames is appropriately increased, and the multiple tire frames are fixed as a whole through connecting pipes, bolts and threaded holes preset on the outer periphery of the tire frame feet to form a square array that can move simultaneously.

[0033] The above are only preferred embodiments of the present invention and do not limit the present invention in any way. Any technician in the relevant technical field, without departing from the scope of the technical solution of the present invention, may make any equivalent replacement or modification to the technical solution and technical content disclosed in the present invention, which shall be deemed as the content of the technical solution of the present invention and still fall within the protection scope of the present invention.

Claims

1. A movable tire frame, characterized in that: The main body includes four legs formed by square steel pipes, the bottom ends of the four legs are connected to each other by four connecting pieces, one end of each of the four connecting pieces is fixed with an elastic moving device for facilitating the movement of the tire frame, and the middle parts of the four connecting pieces are movably connected with a fixing device for limiting the movement of the tire frame; The elastic moving device includes a universal wheel, a guide shaft, a sleeve and a spring. A through hole is provided at one end of the connecting piece, and the sleeve is inserted into the through hole. One end of the guide shaft is fixed to the universal wheel, and the other end passes through the sleeve upward and extends out of the connecting piece. The spring is arranged between the universal wheel and the bottom end of the sleeve.

2. The movable tire frame according to claim 1, characterized in that: The fixing device includes an adjusting handle and a supporting foot fixed to the bottom end thereof. The outer periphery of the adjusting handle is provided with an external thread. The middle part of the connecting piece is provided with a threaded through hole matching the external thread. The adjusting handle is threadedly connected to the connecting piece.

3. The movable tire frame according to claim 2, characterized in that: Located at the bottom of the threaded through hole, a guide sleeve is further provided on the periphery of the adjustment handle, and a reinforcing rib connected to the bottom of the connecting piece is provided on the periphery of the guide sleeve.

4. The movable tire frame according to claim 1, characterized in that: A limiting plate is provided on the top of the universal wheel, a square extension is extended from the outer periphery of the bottom end of the shaft sleeve, and the side lengths of the limiting plate and the extension are greater than or equal to the outer diameter of the spring.

5. The movable tire frame according to claim 1, characterized in that: The connecting piece is an "L"-shaped connecting piece, and reinforcing ribs are connected between the horizontal plate and the vertical plate of the "L"-shaped connecting piece.

6. The movable tire frame according to claim 1, characterized in that: It also includes a "cross" connecting pipe, and the four ends of the "cross" connecting pipe are respectively fixed to four connecting pieces.

7. The movable tire frame according to claim 1, characterized in that: There are multiple tire frames, and the multiple tire frames are connected to each other through multiple connecting pipes and bolts.

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