CN210047271U

CN210047271U - Exempt from fixed universal wheel structure of screw thread installation

Info

Publication number: CN210047271U
Application number: CN201920512713.4U
Authority: CN
Inventors: 秦建国
Original assignee: Nantong Weed Plastic Products Co Ltd
Current assignee: Nantong Weed Plastic Products Co Ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-02-11
Anticipated expiration: 2029-04-16

Abstract

The utility model discloses a thread-free mounting and fixing universal wheel structure, which comprises a cart plate, universal wheels are movably mounted at four corners of the bottom surface of the cart plate, rectangular slots are arranged at four corners of the bottom surface of the cart plate, rectangular insertion blocks are fixedly mounted at the tops of the universal wheels, the rectangular insertion blocks are movably inserted in the rectangular slots, a first positioning slot and a second positioning slot are arranged at one side of each rectangular slot and matched with the side wall of the rectangular insertion block, positioning blocks are movably inserted in the first positioning slot and the second positioning slot, one end of each positioning block, far away from the rectangular slots, is fixedly connected to the side wall of a strip-shaped plate, round rods are fixedly arranged at two ends of one side, attached to the strip-shaped plate, are slidably inserted in round holes formed in the side wall of the cart plate, one end, far away from the strip-shaped plate, of each round rod is fixedly connected to the center of the round plate, one side, close to the strip-, the outer wall of the circular ring is fixedly connected with the inner wall of the circular hole, and the inner ring of the circular ring slides through the circular rod.

Description

Exempt from fixed universal wheel structure of screw thread installation

Technical Field

The utility model relates to an universal wheel installation technical field specifically is a exempt from fixed universal wheel structure of screw thread installation.

Background

The universal wheel is a so-called movable caster, the structure of the universal wheel allows 360-degree horizontal rotation, in our daily life, the universal wheel can be seen everywhere, in the carrying work, a trolley can be used frequently, the trolley is installed on the universal wheel, most of the trolleys are installed by using bolts, the installation mode is not only weak in firmness, but also in the long-term use, the universal wheel is in vibration for a long time, the installation mode is realized by using the bolts, the phenomenon of wire sliding is easy to occur, the bolts are caused to fall, the use of the device is influenced, the working efficiency is reduced, and therefore, a structure of the universal wheel which is free of thread installation and fixation is used for solving the problems is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a exempt from fixed universal wheel structure of screw thread installation to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a thread-free mounting and fixing universal wheel structure comprises a cart plate, universal wheels are movably mounted at four corners of the bottom surface of the cart plate, rectangular slots are formed in four corners of the bottom surface of the cart plate, rectangular insertion blocks are fixedly mounted at the tops of the universal wheels and movably inserted in the rectangular slots, a first positioning slot and a second positioning slot are arranged on one side of each rectangular slot and matched with the side wall of each rectangular insertion block, positioning blocks are movably inserted in the first positioning slot and the second positioning slot, one ends of the positioning blocks, far away from the rectangular slots, are fixedly connected to the side walls of a strip-shaped plate, the side walls of the strip-shaped plate are movably attached to the side walls of the cart plate, round rods are fixedly arranged at two ends of one surface, attached to the cart plate, of the strip-shaped plate, are slidably inserted in round holes formed in the side walls of the cart plate, one ends, far away from the strip-shaped plate, of the round rods are fixedly connected to the, the spring is movably sleeved on the outer wall of the round rod, the free end of the spring is fixedly connected with the end face of the round ring, the outer wall of the round ring is fixedly connected with the inner wall of the round hole, and the inner ring of the round ring slides through the round rod.

As a preferred technical scheme of the utility model, the external diameter of disc is the same with the external diameter of ring, the internal diameter of ring is the same with the cross-section external diameter of pole.

As an optimized technical scheme of the utility model, the length of locating piece is less than the length of pole.

As a preferred technical scheme of the utility model, the fixed gag lever post that is equipped with of both ends lateral wall of disc, circular hole inner wall is equipped with the spacing groove with the gag lever post cooperation, sliding joint has the gag lever post in the spacing groove.

As an optimal technical scheme of the utility model, the fixed handle that is equipped with in one side of bar shaped plate dorsad shallow board, the outer wall of handle is equipped with one deck antiskid line.

As a preferred technical scheme of the utility model, top surface and bottom surface symmetry are equipped with the groove of accomodating in the first constant head tank, accomodate the one end fixedly connected with elastic component that the groove kept away from first constant head tank, the free end fixedly connected with slider of elastic component, slider sliding clamping connects in accomodating the inslot, and the fixed arc fixture block that is equipped with of free surface of slider, the arc fixture block is with the supporting joint of draw-in groove that locating piece top surface and bottom surface were equipped with.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the locating piece is automatic joint under the spring action of spring and is advanced first constant head tank and second constant head tank, realizes a location to the universal wheel, avoids rectangle inserted block and rectangle slot to break away from, and traditional bolt installation universal wheel is compared to this device, and is more swift, has avoided the bolt installation, and the phenomenon of easy smooth silk is more firm, and the change of being convenient for dismantles.

2. When the positioning block moves towards the first positioning groove, the arc-shaped clamping block is extruded to be contracted into the accommodating groove, and when the clamping groove in the positioning block is aligned with the arc-shaped clamping block, the arc-shaped clamping block is automatically clamped into the clamping groove under the elastic action of the elastic piece, so that an effect of strengthening positioning is realized.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention after the strip-shaped plate is removed;

FIG. 3 is a schematic structural view of the strip-shaped plate of the present invention;

FIG. 4 is a schematic view of the structure of a middle universal wheel of the present invention;

fig. 5 is a cross-sectional view taken along the plane a-a of fig. 2 according to the present invention;

fig. 6 is an enlarged structural diagram of the structure at B in fig. 2 according to the present invention.

In the figure: the device comprises a cart plate 1, a rectangular slot 11, a first positioning groove 12, a circular hole 13, a containing groove 14, an elastic part 15, a sliding block 16, an arc-shaped clamping block 17, a limiting groove 18, a circular ring 19, a universal wheel 2, a rectangular insertion block 21, a second positioning groove 22, a strip-shaped plate 3, a positioning block 31, a circular rod 32, a circular disk 33, a spring 34, a limiting rod 35, a handle 36 and a clamping groove 37.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a thread-free mounting and fixing universal wheel structure comprises a cart plate 1, universal wheels 2 are movably mounted at four corners of the bottom surface of the cart plate 1, rectangular inserting grooves 11 are formed at four corners of the bottom surface of the cart plate 1, rectangular inserting blocks 21 are fixedly mounted at the tops of the universal wheels 2, the rectangular inserting blocks 21 are movably inserted in the rectangular inserting grooves 11, a first positioning groove 12 and a second positioning groove 22 are arranged at one side of each rectangular inserting groove 11 and matched with the side wall of the rectangular inserting block 21, positioning blocks 31 are movably inserted in the first positioning groove 12 and the second positioning groove 22, one end, far away from the rectangular inserting grooves 11, of each positioning block 31 is fixedly connected to the side wall of a strip-shaped plate 3, the side wall of the strip-shaped plate 3 is movably attached to the side wall of the cart plate 1, a handle 36 is fixedly arranged on the side of the strip-shaped plate 3, the outer wall of the handle 36 is provided with a layer of anti-skid grains, round rods 32 are fixedly arranged at two ends of the side, the strip, and one end of the round rod 32 far away from the strip-shaped plate 3 is fixedly connected at the center of the round disc 33, one side of the round disc 33 near the strip-shaped plate 3 is fixedly connected with the spring 34, the spring 34 is movably sleeved on the outer wall of the round rod 32, the free end of the spring 34 is fixedly connected with the end surface of the round ring 19, the outer wall of the round ring 19 is fixedly connected with the inner wall of the round hole 13, and the inner ring of the round ring 19 slides through the round rod 32, when in use, if the universal wheel 2 needs to be rapidly installed, the handle 36 is pulled to pull the positioning block 31 out of the first positioning groove 12, meanwhile, the round rod 32 is driven by the round disc 33 to move together to contract the spring 34, then the universal wheel 2 is taken up, the rectangular insert block 21 on the universal wheel 2 is inserted into the rectangular insert groove 11 at the bottom of the cart plate 1, so that the second positioning groove 22 on the rectangular insert block 21 is aligned with the first positioning groove, locating piece 31 automatic joint gets into first constant head tank 12 and second constant head tank 22 under spring 34's spring action, realizes a location to universal wheel 2, avoids rectangle inserted block 21 and rectangle slot 11 to break away from, and traditional bolt installation universal wheel 2 is compared to this device, and is more swift, has avoided the bolt installation, and the phenomenon of easy smooth silk is more firm, and the change of being convenient for is dismantled.

Referring to fig. 1-6, the outer diameter of the disc 33 is the same as the outer diameter of the ring 19, and the inner diameter of the ring 19 is the same as the cross-sectional outer diameter of the rod 32, defining the structure.

Referring to fig. 1 to 6, the length of the positioning block 31 is smaller than the length of the round rod 32, so as to prevent the positioning block 31 from being pulled out of the first positioning groove 12 and affecting the installation of the universal wheel 2.

Referring to fig. 1-6, the side walls of the two ends of the disc 33 are fixedly provided with a limiting rod 35, the inner wall of the circular hole 13 is provided with a limiting groove 18 in cooperation with the limiting rod 35, and the limiting rod 35 is slidably clamped in the limiting groove 18 to limit the circular rod 32, so as to avoid rotation and dislocation.

Referring to fig. 1-6, the top surface and the bottom surface of the first positioning groove 12 are symmetrically provided with accommodating grooves 14, one end of the accommodating groove 14 far away from the first positioning groove 12 is fixedly connected with an elastic member 15, a free end of the elastic member 15 is fixedly connected with a slider 16, the slider 16 is slidably clamped in the accommodating groove 14, a free surface of the slider 16 is fixedly provided with an arc-shaped clamping block 17, the arc-shaped clamping block 17 is clamped in a matching manner with clamping grooves 37 arranged on the top surface and the bottom surface of the positioning block 31, when the positioning block 31 moves towards the first positioning groove 12, the arc-shaped clamping block 17 is extruded to be contracted into the accommodating groove 14, and when the clamping grooves 37 on the positioning block 31 are aligned with the arc-shaped clamping block 17, the arc-shaped clamping block 17 is automatically clamped into the clamping grooves 37 under the elastic force of the elastic member 15, so as to achieve.

The working principle is as follows: when the utility model is used in daily life, if the universal wheel 2 needs to be installed quickly, the handle 36 is pulled to pull the positioning block 31 out of the first positioning groove 12, and the round rod 32 is driven by the disc 33 to move together, the spring 34 is contracted, then the universal wheel 2 is taken up, the rectangular insertion block 21 on the universal wheel 2 is inserted into the rectangular slot 11 at the bottom of the cart plate 1, so that the second positioning groove 22 on the rectangular insertion block 21 is aligned with the first positioning groove 12 in the rectangular slot 11, after alignment, the handle is released, the positioning block 31 is automatically clamped into the first positioning groove 12 and the second positioning groove 22 under the action of the elastic force of the spring 34, realize a location to universal wheel 2, avoid rectangle inserted block 21 and rectangle slot 11 to break away from, traditional bolt installation universal wheel 2 is compared to this device, and is more swift, has avoided the bolt installation, and the phenomenon of easy smooth silk is more firm, and convenient to change dismantles.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fixed universal wheel structure of screw thread installation exempts from, includes shallow board (1), shallow board (1) bottom surface four corners movable mounting has universal wheel (2), its characterized in that: rectangular inserting grooves (11) are formed in four corners of the bottom surface of the cart plate (1), rectangular inserting blocks (21) are fixedly mounted at the tops of the universal wheels (2), the rectangular inserting blocks (21) are movably inserted into the rectangular inserting grooves (11), first positioning grooves (12) and second positioning grooves (22) are formed in one sides of the rectangular inserting grooves (11) and matched with the side walls of the rectangular inserting blocks (21), positioning blocks (31) are movably inserted into the first positioning grooves (12) and the second positioning grooves (22), one ends, far away from the rectangular inserting grooves (11), of the positioning blocks (31) are fixedly connected onto the side walls of the strip-shaped plates (3), the side walls of the strip-shaped plates (3) are movably attached to the side walls of the cart plate (1), round rods (32) are fixedly arranged at two ends of one side, attached to the strip-shaped plate (3) and the cart plate (1), of the round rods (32) are slidably inserted into round holes (13) formed in the side walls of the cart plate, and one end fixed connection that bar board (3) were kept away from in round bar (32) is located in disc (33) center, disc (33) are close to one side fixedly connected with spring (34) of bar board (3), spring (34) activity cup joints at round bar (32) outer wall, and the free end of spring (34) and the terminal surface fixed connection of ring (19), the outer wall and circular port (13) inner wall fixed connection of ring (19), and the inner circle of ring (19) slides through having round bar (32).

2. The thread-free installation and fixation universal wheel structure as claimed in claim 1, wherein: the outer diameter of the disc (33) is the same as the outer diameter of the circular ring (19), and the inner diameter of the circular ring (19) is the same as the section outer diameter of the circular rod (32).

3. The thread-free installation and fixation universal wheel structure as claimed in claim 1, wherein: the length of the positioning block (31) is smaller than that of the round rod (32).

4. The thread-free installation and fixation universal wheel structure as claimed in claim 1, wherein: the both ends lateral wall of disc (33) is fixed and is equipped with gag lever post (35), circular port (13) inner wall is equipped with spacing groove (18) with gag lever post (35) cooperation, sliding joint has gag lever post (35) in spacing groove (18).

5. The thread-free installation and fixation universal wheel structure as claimed in claim 1, wherein: the trolley is characterized in that a handle (36) is fixedly arranged on one side, back to the trolley plate (1), of the strip-shaped plate (3), and a layer of anti-slip grains are arranged on the outer wall of the handle (36).

6. The thread-free installation and fixation universal wheel structure as claimed in claim 1, wherein: top surface and bottom surface symmetry are equipped with and accomodate groove (14) in first constant head tank (12), accomodate one end fixed connection elastic component (15) that groove (14) kept away from first constant head tank (12), the free end fixedly connected with slider (16) of elastic component (15), slider (16) slip joint is in accomodating groove (14), and the fixed arc fixture block (17) that is equipped with of free surface of slider (16), arc fixture block (17) and the supporting joint of draw-in groove (37) that locating piece (31) top surface and bottom surface were equipped with.