Horizontal adjustment type trundle with reinforced support

Abstract

The utility model provides a horizontal adjustment type trundle with reinforced support. Belongs to the field of casters. According to the technical key points, the device comprises a moving mechanism, the moving mechanism comprises a connecting plate, the bottom of the connecting plate is rotationally connected with a wheel frame, one side of the wheel frame is detachably connected with a rotating shaft, the outer side of the rotating shaft is rotationally connected with a rolling wheel, and one side of the rolling wheel is provided with a fixing block fixedly connected with the wheel frame; the interior of the fixing block is in threaded connection with a screw rod, and the bottom of the screw rod is fixedly connected with a base. The supporting mechanism comprises a supporting column fixedly connected to one side of the top of the wheel frame, the supporting column corresponds to the rotating shaft, the top of the supporting column is movably connected with a ball, and the bottom of the connecting plate is fixedly connected with a guide ring; the utility model aims to provide a horizontal adjustment type trundle with reinforced support. The supporting performance of the whole trundle is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of trundle, concretely is a horizontal adjustment formula trundle of reinforcing support. BACKGROUND

[0002] The horizontal adjustment formula trundle is also called Foma wheel, and the structure is composed of three parts: a moving wheel, a stress support and an adjusting block base. The moving wheel endows the Foma wheel with the basic function of free movement, the stress support enables it to have good load bearing capacity, and the adjusting block base allows the device to be fixed after being transported into place. In use, the height of the Foma wheel can be adjusted by rotating the adjusting block of the base, thereby realizing the movement or fixation of the device. When the device needs to be moved, the adjusting block can separate the base from the ground, while the moving wheel remains in contact with the ground, facilitating the movement of the device. When the device reaches the predetermined position, the moving wheel can be emptied by rotating the adjusting block in the opposite direction, thereby realizing the fixation of the device.

[0003] The current horizontal adjustment formula trundle, as described in the patent with announcement number CN219096411U, includes a bottom shell, a wheel, a support block and a height adjustment device. The bottom shell has a wheel accommodating cavity for accommodating the wheel and a vertical channel for accommodating the support block. The wheel is arranged in the wheel accommodating cavity in a rotating manner. The side wall of the bottom shell has an adjusting opening corresponding to the position of the vertical channel. The height adjustment device includes a threaded rod and a nut. The vertical channel is provided with a bearing platform. The bearing platform has a through hole at the center position. The vertical channel below the bearing platform forms a support block active area. The vertical channel above the bearing platform is provided with a blocking block. The blocking block has a vertical insertion hole with an inner diameter larger than the diameter of the threaded rod, corresponding to the position of the through hole.

[0004] According to the related technology in the above, the inventor believes that the connection between the bottom shell and the connecting plate is not directly opposite to the installation position of the roller, so that when the roller provides support by contacting the ground, the connection between the bottom shell and the connecting plate will be affected by a deviated force, thereby easily causing the connecting plate and the wheel frame to break, resulting in poor supportability of the entire trundle. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a horizontal adjustment formula trundle with reinforced support to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A horizontal adjustment formula trundle with reinforced support, comprising

[0008] The moving mechanism comprises a connecting plate, a wheel frame rotatably connected to the bottom of the connecting plate, a rotating shaft detachably connected to one side of the wheel frame, a roller rotatably connected to the outer side of the rotating shaft, a fixed block fixedly connected to one side of the roller, a screw threadedly connected to the inner side of the fixed block, and a base fixedly connected to the bottom of the screw.

[0009] The support mechanism comprises a support column fixedly connected to one side of the top of the wheel frame, the support column corresponding to the rotating shaft, a ball movably connected to the top of the support column, a guide ring fixedly connected to the bottom of the connecting plate, and a ball groove formed in the bottom of the guide ring and matched with the ball.

[0010] As a further scheme of the present application, the wheel frame is internally fixedly connected with a baffle, which is arranged between the roller and the base.

[0011] As a further scheme of the present application, the rotating shaft penetrates the wheel frame, the rotating shaft is threadedly connected with a limiting nut at both ends, a key groove is formed in the outer side of the rotating shaft, a spline is inserted into the key groove, a bearing is fixedly connected to the inner side of the roller, and the fixed block is fixedly connected with the bearing.

[0012] As a further scheme of the present application, the bottom of the fixed block is annularly and fixedly connected with a plurality of reinforcing rib plates, and each group of the reinforcing rib plates is fixedly connected with the wheel frame.

[0013] As a further scheme of the present application, a plurality of guide grooves are annularly and formed in the outer side of the screw, each group of the guide grooves is internally provided with a matched guide block, each guide block is fixedly connected with a worm gear on the outer side, the worm gear is rotatably connected with the fixed block, the worm gear is meshingly connected with a worm on the outer side, and the worm is rotatably connected with the guide block.

[0014] As a further scheme of the present application, one section of the worm penetrates the wheel frame, a hexagonal nut is fixedly connected to the end of the worm away from the wheel frame, and a hexagonal insertion slot is formed in the end of the hexagonal nut away from the worm.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] After the above structure is adopted, the support column, the ball and the guide ring are matched with each other, so that the support column can be driven to rotate when the wheel frame rotates, the ball can roll along the inner side of the ball groove, the support column and the ball can assist in supporting one side of the wheel frame when the wheel frame rotates, the bearing burden of the connecting portion between the wheel frame and the connecting plate is reduced, and the support performance of the whole caster is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further explained in detail below in combination with the embodiments in the drawings, but does not constitute any limitation to the utility model.

[0018] Figure 1 It is a kind of whole structure schematic diagram of reinforced support horizontal adjustment formula caster.

[0019] Figure 2 It is a kind of reinforced support horizontal adjustment formula caster Figure 1 A portion structure schematic diagram.

[0020] Figure 3 It is the partial structure section view of a kind of reinforced support horizontal adjustment formula caster.

[0021] Figure 4 It is the B portion structure schematic diagram of a kind of reinforced support horizontal adjustment formula caster Figure 3 .

[0022] Figure 5 It is the C portion structure schematic diagram of a kind of reinforced support horizontal adjustment formula caster Figure 4 .

[0023] Figure 6 It is the structure side section view of pivot in a kind of reinforced support horizontal adjustment formula caster.

[0024] In the drawing: 1, moving mechanism;101, connecting plate;102, wheel carrier;103, roller;104, pivot;105, limit nut;106, base;107, screw;108, fixed block;109, reinforcing rib plate;110, worm wheel;111, guide slot;112, guide block;113, worm;114, hexagonal nut;115, hexagonal slot;116, baffle;117, bearing;118, spline;119, keyway;2, support mechanism;201, guide ring;202, ball groove;203, support column;204, ball. Specific embodiments

[0025] The technical scheme of the present patent will be further explained in detail below in combination with specific embodiments.

[0026] Please refer to Figures 1-6The application discloses a reinforced horizontal-adjustable caster, which comprises a moving mechanism 1, wherein the moving mechanism 1 comprises a connecting plate 101, which is arranged to be connected with an equipment to be supported. The bottom of the connecting plate 101 is rotationally connected with a wheel frame 102, one side of the wheel frame 102 is detachably connected with a rotating shaft 104, the outer side of the rotating shaft 104 is rotationally connected with a roller 103, the rotating shaft 104 is arranged to support the roller 103, so that the roller 103 can roll on the ground. The rotating shaft 104 penetrates through the wheel frame 102, the outer side of the rotating shaft 104 is provided with a key groove 119, the key groove 119 is internally inserted with a spline 118, the roller 103 is internally fixedly connected with a bearing 117, a fixed block 108 is fixedly connected with the bearing 117, the screw rod 107 is connected with the rotating shaft 104 through cooperation of the spline 118 and the key groove 119, so that the rotating shaft 104 can be subsequently pulled out to replace the roller 103 and the screw rod 107.

[0027] The two ends of the rotating shaft 104 are threadedly connected with limiting nuts 105, the limiting nuts 105 are arranged to limit the rotating shaft 104, so as to facilitate subsequent disassembly of the rotating shaft 104. One side of the roller 103 is provided with the fixed block 108 which is fixedly connected with the wheel frame 102, the bottom of the fixed block 108 is annularly fixedly connected with a plurality of reinforcing rib plates 109, each group of reinforcing rib plates 109 is fixedly connected with the wheel frame 102, the reinforcing rib plates 109 are arranged to further connect and fix the fixed block 108 and the wheel frame 102, so as to improve the connection stability of the fixed block 108 and the connecting plate 101. The inside of the fixed block 108 is threadedly connected with a screw rod 107, the bottom of the screw rod 107 is fixedly connected with a base 106, the screw rod 107 is arranged to drive the base 106 to move up and down when rotating. The inside of the wheel frame 102 is fixedly connected with a baffle 116, the baffle 116 is arranged between the roller 103 and the base 106, the baffle 116 is arranged to separate the roller 103 and the screw rod 107, so as to reduce the probability that mud or sundries are brought up by the roller 103 and fall on the screw rod 107.

[0028] The outer side of the screw rod 107 is provided with a plurality of guide grooves 111 in an annular array, and each group of guide grooves 111 is provided with a matched guide block 112 inside. The outer side of each guide block 112 is fixedly connected with a worm wheel 110. The worm wheel 110 is arranged to drive each group of guide blocks 112 to rotate when rotating, so as to drive the screw rod 107 to rotate. The worm wheel 110 is rotatably connected with the fixed block 108. The outer side of the worm wheel 110 is rotatably connected with a worm 113. The worm 113 is rotatably connected with the guide block 112. The worm 113 is arranged to drive the worm wheel 110 to rotate when rotating, so as to realize the adjustment of the worm wheel 110. A section of the worm 113 penetrates the wheel frame 102. The end of the worm 113 away from the inside of the wheel frame 102 is fixedly connected with a hexagonal nut 114. The hexagonal nut 114 is arranged to facilitate the rotation and adjustment of the worm 113 by using an external hexagonal wrench. The end of the hexagonal nut 114 away from the worm 113 is provided with a hexagonal slot 115. The hexagonal slot 115 is arranged to facilitate the rotation and adjustment of the worm 113 by using an internal hexagonal wrench.

[0029] The support mechanism 2 includes a support column 203 fixedly connected to one side of the top of the wheel frame 102. The support column 203 corresponds to the rotating shaft 104. The top of the support column 203 is movably connected with a ball 204. The bottom of the connecting plate 101 is fixedly connected with a guide ring 201. The bottom of the guide ring 201 is provided with a ball groove 202 matched with the ball 204. The ball 204 is arranged to roll in the ball groove 202 with the support column 203 when the wheel frame 102 rotates. The support column 203 and the ball 204 can assist in supporting the wheel frame 102, so that when the roller 103 contacts the ground, the support column 203 and the ball 204 can reduce the force received at the connection between the wheel frame 102 and the connecting plate 101, thereby reducing the probability of fracture at the connection between the connecting plate 101 and the wheel frame 102, and thereby improving the support capacity of the whole caster.

[0030] When in use, the connecting plate 101 is fixed to the bottom of the device to be supported by bolts or screws, and the required number of casters is installed according to needs. During the movement of the device, the roller 103 can roll on the ground, and the rotation of the wheel frame 102 during the rolling process can adjust the moving direction of the device. During the rotation of the wheel frame 102, the support column 203 is driven to rotate accordingly, and the ball 204 can roll along the inside of the ball groove 202. The support of the support column 203 and the ball 204 can assist one side of the wheel frame 102. The worm 113 can be rotated to drive the worm wheel 110 and each group of guide blocks 112 to rotate, and the guide block 112 can drive the screw 107 to rotate when it rotates, and the screw 107 can drive the base 106 to move downward when it rotates, so that the fixed block 108, the wheel frame 102 and the roller 103 move upward until the roller 103 is out of contact with the ground, thereby limiting the movement of the entire caster.

[0031] The above embodiments are preferred implementation methods of the present invention and are only used to facilitate the explanation of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the technical field can, without departing from the scope of the technical features of the present invention, make partial changes or modifications to the technical contents disclosed in the present invention and make equivalent embodiments without departing from the technical features of the present invention. These modifications still fall within the scope of the technical features of the present invention.

Claims

1. A horizontally adjustable caster with enhanced support, characterized in that: include A mobile mechanism (1), comprising a connecting plate (101), the bottom of the connecting plate (101) being rotatably connected to a wheel frame (102), one side of the wheel frame (102) being detachably connected to a rotating shaft (104), the outer side of the rotating shaft (104) being rotatably connected to a roller (103), one side of the roller (103) being provided with a fixing block (108) fixedly connected to the wheel frame (102), the internal thread of the fixing block (108) being connected to a screw rod (107), the bottom of the screw rod (107) being fixedly connected to a base (106); A support mechanism (2) includes a support column (203) fixedly connected to one side of the top of the wheel frame (102), the support column (203) corresponds to the rotating shaft (104), the top of the support column (203) is movably connected to a ball (204), the bottom of the connecting plate (101) is fixedly connected to a guide ring (201), and the bottom of the guide ring (201) is provided with a ball groove (202) adapted to the ball (204).

2. The horizontally adjustable caster with enhanced support according to claim 1, characterized in that: A baffle (116) is fixedly connected to the interior of the wheel frame (102), and the baffle (116) is arranged between the roller (103) and the base (106).

3. The horizontally adjustable caster with enhanced support according to claim 1, characterized in that: The rotating shaft (104) passes through the wheel frame (102), and both ends of the rotating shaft (104) are threadedly connected to the limit nuts (105). A keyway (119) is provided on the outside of the rotating shaft (104), and a spline (118) is inserted into the inside of the keyway (119). A bearing (117) is fixedly connected to the inside of the roller (103), and the fixing block (108) is fixedly connected to the bearing (117).

4. The horizontally adjustable caster with enhanced support according to claim 1, characterized in that: The bottom of the fixed block (108) is fixedly connected to a plurality of reinforcing ribs (109) in an annular array, and each group of the reinforcing ribs (109) is fixedly connected to the wheel frame (102).

5. The horizontally adjustable caster with enhanced support according to claim 1, characterized in that: The outer side of the screw (107) is provided with a plurality of guide grooves (111) in an annular array, and each group of the guide grooves (111) is provided with a corresponding guide block (112) inside. The outer side of each guide block (112) is fixedly connected with a worm wheel (110), and the worm wheel (110) is rotatably connected to the fixed block (108). The outer side of the worm wheel (110) is meshedly connected with a worm (113), and the worm (113) is rotatably connected to the guide block (112).

6. The horizontally adjustable caster with enhanced support according to claim 5, characterized in that: A section of the worm (113) passes through the wheel frame (102), and one end of the worm (113) away from the inside of the wheel frame (102) is fixedly connected to a hexagonal nut (114), and one end of the hexagonal nut (114) away from the worm (113) is provided with a hexagonal slot (115).

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