CN215851214U

CN215851214U - Rail-mounted area hand-push flat car with novel and practical structure

Info

Publication number: CN215851214U
Application number: CN202121921198.9U
Authority: CN
Inventors: 张锦山; 周长宝; 陈利军; 李政忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-02-18
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses a rail-running-area hand-push flat car with a novel and practical structure, relates to the technical field of hand-push flat cars, and solves the problem that an existing speed control device of a flat car is high in cost and inconvenient to use. A rail-running area hand-push flat car with a novel and practical structure comprises a car frame; the frame is of a rectangular plate-shaped structure; the brake wheel frame is mounted at the bottom of the frame through bolts; the top of the frame is fixedly provided with a hand guardrail through bolts; the parking handle is fixedly installed on the hand guardrail; the travelling wheel is mounted on the frame bolt; the hand guardrail includes: the upper connecting piece and the lower connecting piece are fixedly arranged at the bottom of the hand guardrail. Through the swing parking device, the friction force of the fixed brake block and the brake hub makes the device move at a constant speed, and the mechanical brake braking mode has the advantages of simple structure, lower cost and contribution to quick manufacture and market opening.

Description

Rail-mounted area hand-push flat car with novel and practical structure

Technical Field

The utility model belongs to the technical field of hand-pushed flatcars, and particularly relates to a rail-running-area hand-pushed flatcar with a practical new structure.

Background

The hand push flat car is used as a simple tool in the construction operation of railway and subway rail areas, and has a wide application range and a large number. However, because of the lack of any security measures, construction production safety accidents caused by such tools are frequently occurred in recent years, and certain casualties and property loss are caused.

If the application number is: CN201821916901.5 discloses a hand-pushed flat car, which belongs to the technical field of flat cars, and the technical scheme of the hand-pushed flat car comprises a car body and a hand-pushed support, wherein a caster frame is arranged at the bottom of the car body, a universal wheel is rotatably arranged on the caster frame, a brake block which is abutted against the surface of the universal wheel is slidably arranged on the caster frame, a brake handle is rotatably arranged on the hand-pushed support, the brake handle is in transmission connection with the brake block through a brake transmission mechanism, and when the brake handle rotates downwards, the brake block is separated from the surface of the universal wheel.

Based on the above, speed sensor's automatic braking system needs four batteries, and the battery will charge once a day, and the weight of shallow can increase a lot, uses inconveniently, and automatic mechanical braking system that mechanical clutch accomplished increases automobile body height and weight, and mechanical clutch system is with high costs in addition.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a rail running area hand-push flat car with a novel and practical structure, which aims to solve the problems that an automatic braking system of a speed sensor needs four storage batteries, the storage batteries need to be charged once a day, the weight of the flat car is increased greatly, the flat car is inconvenient to use, an automatic mechanical braking system finished by a mechanical clutch increases the height and the weight of a car body, and in addition, the cost of the mechanical clutch system is high.

The utility model relates to a novel and practical rail-mounted area hand-push flat car, which is realized by the following specific technical means:

a rail-running area hand-push flat car with a novel and practical structure comprises a car frame; the frame is of a rectangular plate-shaped structure; the brake wheel frame is mounted at the bottom of the frame through bolts; the top of the frame is fixedly provided with a hand guardrail through bolts; the parking handle is fixedly installed on the hand guardrail; the travelling wheel is installed on the frame bolt.

Furthermore, the brake wheel frame comprises a parking wheel, a cam, a brake pad, a brake hub and a brake hub cover, the lower part of the brake wheel frame is rotatably connected with the parking wheel, the brake hub is fixed on the center bolt of the parking wheel, the brake hub is rotatably connected with the brake hub cover, the brake pad is rotatably connected inside the brake hub cover, and the brake pad is in sliding connection with the cam.

Furthermore, the cam is in penetrating and rotating connection with the brake hub cover, the cam is connected with a cam connecting rod, and the bottom end of the cam connecting rod is in penetrating and rotating connection with the tension rod bolt shaft.

Furthermore, the brake hub cover is fixedly connected with the brake wheel carrier through bolts, the cam rotates, and the brake pad swings outwards to be in contact with the brake hub.

Further, the handrail comprises: the upper connecting piece and the lower connecting piece are fixedly arranged at the bottom of the hand guardrail and are positioned at the top of the frame, the lower connecting piece is positioned at the bottom of the frame, and the upper connecting piece and the lower connecting piece are fixedly connected with the frame bolt in a penetrating way.

Furthermore, the middle part of the parking device is rotationally connected with the frame, the parking device rotates, and the parking device drives the tension rod to move backwards.

Furthermore, the top of the connector is rotatably connected with the frame, the lower part of the connector is sequentially rotatably connected with a connecting pull wire, a parking pull rod and a tension rod, and the parking pull rod is positioned in the middle of the connecting pull wire and the tension rod.

Furthermore, the parking handle comprises a connecting pull wire, a parking device, a parking pull rod, a connector and a pull rod, the parking handle is connected with one connecting pull wire, the upper portion of the frame is rotatably connected with one parking device, the tail end of the parking device is rotatably connected with one parking pull rod, the tail end of the parking pull rod is rotatably connected with one connector, and the middle of the connector is rotatably connected with one pull rod.

The utility model at least comprises the following beneficial effects:

1. the utility model fixes the friction force between the brake pad and the brake hub and fixes the rotation speed of the wheel by swinging the parking device, so that the device moves at a fixed speed, and the mechanical brake mode has stable performance, simple structure, lower cost and is beneficial to quick manufacture and market opening.

2. The friction force between the brake pad and the brake hub is adjusted at any time through the parking handle, the parking handle and the parking device are controlled in a double-layer mode, the safety effect is improved, the weight change of the device is small, the burden of a vehicle cannot be increased additionally, the upper connecting piece at the bottom of the hand guardrail enables the hand guardrail to be fixed with the vehicle frame more firmly, and the hand guardrail is prevented from shaking after long-term use.

Drawings

Fig. 1 is a schematic view of the structure of the present invention in use.

Fig. 2 is a schematic view of the structure of the hand guardrail of the utility model.

Fig. 3 is a schematic structural diagram of the braking wheel frame of the utility model.

FIG. 4 is a schematic view of a half-section structure of the braking wheel frame of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a frame; 2. braking the wheel carrier; 201. a wheel; 202. a cam; 20201. a cam link rod; 203. a brake pad; 204. braking the hub; 205. a brake hub cover; 3. a hand guard rail; 301. an upper connecting sheet; 302. a lower connecting sheet; 4. a parking grip; 401. connecting a pull wire; 402. a parking device; 403. a parking pull rod; 404. a connector; 405. a tension rod.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "two ends," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the description, and are not intended to indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be understood broadly, and for example, they may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Example (b):

as shown in figures 1 to 4:

the utility model provides a rail-running-area hand-push flat car with a novel and practical structure, which comprises a car frame 1; the bicycle frame comprises a bicycle frame 1, wherein the bicycle frame 1 is of a rectangular plate-shaped structure; the braking wheel frame 2 is arranged at the bottom of the frame 1 through bolts; the top of the frame 1 is fixedly provided with the hand guardrail 3 through bolts; the parking handle 4 is fixedly arranged on the hand guardrail 3; the travelling wheel 5 is mounted on the frame 1 through bolts;

the brake wheel frame 2 comprises a parking wheel 201, a cam 202, a brake pad 203, a brake hub 204 and a brake hub cover 205, the lower part of the brake wheel frame 2 is rotatably connected with the parking wheel 201, the center bolt of the parking wheel 201 is fixed with the brake hub 204, the brake hub 204 is rotatably connected with the brake hub cover 205, the brake pad 203 is rotatably connected inside the brake hub cover 205, the brake pad 203 is slidably connected with the cam 202, the cam 202 is rotatably connected with the brake hub cover 205 in a penetrating way, the cam 202 is connected with a cam extension rod 20201, the bottom end of the cam extension rod 20201 is rotatably connected with a bolt shaft of a tension rod 405 in a penetrating way, and the mechanical brake mode is stable in performance, simple in structure, lower in cost and beneficial to quick manufacture and market opening;

the handrail 3 includes: the walking guardrail comprises an upper connecting sheet 301 and a lower connecting sheet 302, wherein the bottom of the walking guardrail 3 is fixedly provided with the upper connecting sheet 301 and the lower connecting sheet 302, the upper connecting sheet 301 is positioned at the top of the frame 1, the lower connecting sheet 302 is positioned at the bottom of the frame 1, and the upper connecting sheet 301 and the lower connecting sheet 302 are fixedly connected with the frame 1 through bolts in a penetrating manner, so that the walking guardrail 3 is prevented from shaking after being used for a long time;

the parking handle 4 comprises a connecting pull wire 401, a parking device 402, a parking pull rod 403, a connector 404 and a pull rod 405, the parking handle 4 is connected with a connecting pull wire 401, the upper part of the frame 1 is rotatably connected with a parking device 402, the tail end of the parking device 402 is rotatably connected with a parking pull rod 403, the tail end of the parking pull rod 403 is rotatably connected with a connector 404, the middle part of the connector 404 is rotatably connected with a pull rod 405, the middle part of the parking device 402 is rotatably connected with the frame 1, the parking device 402 rotates, the parking device 402 drives the pull rod 405 to move backwards, the friction force between the brake pad 203 and the brake hub 204 is adjusted at any time through the parking handle 4, the top of the connector 404 is rotatably connected with the frame 1, the lower part of the connector 404 is sequentially rotatably connected with the connecting pull wire 401, the parking pull rod 403 and the pull rod 405, the parking pull rod 403 is positioned in the middle part of the connecting pull wire 401 and the pull rod 405, the use of connecting lines is reduced, the weight is reduced, the parking handle 4 and the parking device 402 are controlled in a double-layer mode, and the safety effect is improved.

The brake hub cover 205 is fixedly connected with the brake wheel frame 2 through bolts, the cam 202 rotates, the brake pad 203 swings outwards to be in contact with the brake wheel hub 204, the cam 202 drives the brake pad 203 to rotate outwards, the friction force between the brake pad 203 and the brake wheel hub 204 is adjusted, the rotation speed of the parking brake or the fixed parking wheel 201 is achieved, and the running speed and the running brake are controlled.

The specific use mode and function of the embodiment are as follows:

in the utility model, prototype test data are as follows: traveling speed: 5 Km/h; load-bearing capacity: 1 ton; braking distance: 1 meter (plus inertial distance); parking and braking: 0 m; traveling speed control: the method is good; the potential safety hazard existing in the use of the manual trolley in the rail-mounted area is solved; tests prove that the handcart designed and manufactured at this time has stable performance, safety and reliability, and improves the safety guarantee of using the handcart during construction in a rail running area; the wheel set 201 is proportionally reduced according to the design data of the national standard railway wheels, and wheel sets used in mass production are processed, so that the stress position of the tread of the wheel set 201 is standardized, and the rolling smoothness and durability of the wheel set 201 are improved; the materials and the bearing framework of the frame 1 are enhanced, the loading capacity of the vehicle is improved, the weight of the whole vehicle is reduced by reducing the wheel base, the use flexibility and the transportation convenience of the vehicle are improved, when the parking device is used, the parking pull rod 403 pulls the connector 404 to swing through swinging the parking device 402, the cam 202 drives the brake pad 203 to rotate outwards, the friction force between the brake pad 203 and the brake hub 204 is adjusted to achieve the rotation speed of the parking brake or the fixed parking wheel 201, so that the device moves at a fixed speed, the traveling speed and the traveling brake are controlled, the mechanical brake mode is adopted, the performance is stable, the structure is simple, the cost is lower, the rapid manufacture and the market opening are facilitated, the friction force between the brake pad 203 and the brake hub 204 is adjusted at any time through the parking handle 4, the parking handle 4 and the parking device 402 are controlled in a double-layer mode, the safety effect is improved, the weight change of the device is small, and the vehicle burden is not increased additionally, the upper connecting sheet 301 of the bottom 3 of the hand guardrail enables the hand guardrail 3 to be more firmly fixed with the frame 1, and the hand guardrail 3 is prevented from shaking after long-term use.

The utility model is not described in detail, but is well known to those skilled in the art.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a rail line district hand push flatcar that new construction is practical which characterized in that: a rail-running area hand-push flat car with a novel and practical structure comprises a frame;

the frame is of a rectangular plate-shaped structure;

the brake wheel frame is mounted at the bottom of the frame through bolts;

the top of the frame is fixedly provided with a hand guardrail through bolts;

the parking handle is fixedly installed on the hand guardrail;

the travelling wheel is installed on the frame bolt.

2. A new and useful track-side hand-push flat car according to claim 1, wherein said hand rail comprises: the upper connecting piece and the lower connecting piece are fixedly arranged at the bottom of the hand guardrail and are positioned at the top of the frame, the lower connecting piece is positioned at the bottom of the frame, and the upper connecting piece and the lower connecting piece are fixedly connected with the frame bolt in a penetrating way.

3. A new and useful structural rail-section hand truck as in claim 1, wherein said parking handle comprises:

the parking device comprises a frame, a parking handle, a parking device, a parking pull rod, a connector and a tension rod, wherein the parking handle is connected with a connecting pull rod, the upper part of the frame is rotatably connected with the parking device, the tail end of the parking device is rotatably connected with the parking pull rod, the tail end of the parking pull rod is rotatably connected with the connector, and the middle part of the connector is rotatably connected with the tension rod.

4. A new and useful track area hand truck as in claim 3 wherein the parking device middle section is pivotally connected to the frame and the parking device is pivoted to move the tension rod rearwardly.

5. The utility model of claim 3 is characterized in that the top of the connector is rotatably connected with the frame, the lower part of the connector is rotatably connected with the connecting pull wire, the parking pull rod and the tension rod in turn, and the parking pull rod is arranged in the middle of the connecting pull wire and the tension rod.

6. A new and useful construction of a track-side hand truck according to claim 1, characterized in that the brake wheel carrier comprises:

the parking wheel comprises a parking wheel, a cam, a brake pad, a brake hub and a brake hub cover, wherein the lower part of a brake wheel frame is rotatably connected with the parking wheel, the brake hub is fixed at the center of the parking wheel through a bolt, the brake hub is rotatably connected with the brake hub cover, the brake pad is rotatably connected inside the brake hub cover, and the brake pad is in sliding connection with the cam.

7. A new and useful track area hand truck according to claim 6 wherein the cam is pivotally connected to the brake hub cap and a cam extension rod is pivotally connected to the cam and the bottom end of the cam extension rod is pivotally connected to the tension rod latch shaft.

8. A new and useful track area hand truck as in claim 6 wherein the brake hub cap is bolted to the brake wheel frame and the cam is rotated to swing the brake pads outwardly into contact with the brake hub.