Super-particle-size subgrade filling gravel sorting pliers

Abstract

The utility model discloses an oversize subgrade filling broken stone sorting plier, which relates to the broken stone sorting device technology, and comprises a sorting plier main body and an action executing mechanism, the sorting plier main body comprises a handle, a movable pull handle of the action executing mechanism is positioned in a rectangular frame-shaped structure of the handle, the movable pull handle is also of a frame-shaped structure, and a user holds the handle with the thumb to pick up broken stone. Then the other four fingers are wound around the movable pull handle, the movable pull handle can be pulled by forcefully clenching a fist, the movable pull handle is connected with the two paws through the pull rod, then the two paws are driven to move towards the inner side in the opposite direction to clamp broken stones, the dragging function and the clamping force are improved, the broken stone sorting work can be efficiently carried out, and the working efficiency is improved. The labor intensity of field workers can be reduced; and convenience and durability are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of crushed stone sorting devices, in particular to a crushed stone sorting pliers for filling with super-grained roadbed. Background Art

[0002] When gravel is used as roadbed filler, although the gradation is not strictly controlled, it is not allowed to use gravel with oversized particle size (greater than 100mm (roadbed) or 150mm (embankment)). At present, when some gravel fillers contain a small amount of oversized gravel, it is usually removed by on-site visual inspection and manual picking. There is a lack of special tools, which is inefficient, labor-intensive, and has low removal quality.

[0003] How to assist on-site workers to efficiently sort out oversized gravel, which can not only reduce the labor intensity of on-site workers but also be convenient and durable, is a technical problem that needs to be solved urgently. Although various existing handheld picking tools in other industries have certain picking functions, they are not suitable for use in this field. For example, utility model patent 201921487217.4 "A kind of environmentally friendly and labor-saving picker" borrows the principles of mechanical grasping mechanisms such as snake catchers to fix the specific working environment of sanitation workers when picking up garbage; it solves the problem that sanitation workers' hands not only need to provide upward force, but also need to maintain a grip on the handle, making the operation more laborious. Secondly, the weight of garbage picked up each time is relatively light, and the requirements for users and workplaces are not high.

[0004] Although various existing hand-held picking tools in other industries have certain picking functions, their own strength, clamping weight and dragging functions have certain limitations, poor convenience and durability, and are difficult to adapt to the on-site environment. Utility Model Content

[0005] The purpose of the utility model is to provide an ultra-large-size roadbed filling gravel sorting pliers to solve the problems existing in the above-mentioned prior art. The pliers have a large clamping weight and a good dragging function, and can efficiently implement the gravel sorting work, which can reduce the labor intensity of on-site workers and is convenient and durable.

[0006] To achieve the above purpose, the utility model provides the following solutions:

[0007] The utility model provides a super-grained roadbed filling gravel sorting pliers, comprising:

[0008] The main body of the sorting pliers has a gripping portion at one end and two symmetrically arranged claws at the other end. The two claws are used to clamp the gravel. The two claws can move toward each other. When the two claws tend to be in a closed state, the gravel can be firmly clamped between the two claws.

[0009] The action execution mechanism includes a movable handle arranged near the holding portion, wherein the movable handle is connected to the claws through a driving component. Pulling the movable handle can drive the two claws to move toward each other through the driving component, thereby clamping the gravel.

[0010] Optionally, the sorting forceps body includes a pipe rod and a bracket, both of which are hollow structures, the end of the pull rod and the upper part of the claw respectively penetrate into the cavities at both ends of the bracket, the gripping part is fixedly arranged at one end of the pipe rod, the bracket is fixedly arranged at the other end of the pipe rod, and one end of the pipe rod is passed through the inside of the bracket and connected with the inside of the bracket, and the claw is movably arranged at the end of the bracket away from the pipe rod; the driving component is connected to the claw after passing through the pipe rod and the bracket.

[0011] Optionally, the driving component includes a pull rod movably inserted into the pipe rod, one end of the pull rod is connected to the movable handle, the other end of the pull rod is provided with a pull rod pin hole, and the end of the claw located in the bracket is provided with a claw pin hole, the pull rod pin hole and the claw pin hole are connected by a pin shaft; a sliding groove is provided on the side wall of the bracket, and both ends of the pin shaft are slidably inserted into the sliding groove, and the sliding groove is a long strip groove, so that the pin shaft can move in the sliding groove toward the pipe rod or away from the pipe rod; a reset mechanism is provided on the claw, and when the pulling force on the movable handle is cancelled, the reset mechanism can drive the claw to rotate outward and reset, so as to facilitate re-gripping of the gravel next time.

[0012] Optionally, the reset mechanism includes two first return springs, the circular hole at one end of the first return spring is sleeved on the pin shaft, and the other end is fixedly connected to the inner wall of the corresponding hand claw.

[0013] Optionally, the outer wall of the gripper is a smooth, convex arc structure, and the bracket is symmetrically provided with a limiting axis at one end away from the pipe rod, and the limiting axis is located on the outside of the outer wall of the gripper.

[0014] Optionally, tooth-shaped structures are evenly arranged on the inner wall of the gripper to facilitate a more secure grip of the gravel.

[0015] Optionally, a flange is provided at the end of one of the grippers, and a particle size ruler is movably mounted on the flange via a ruler shaft. When the gripper clamps gravel, after the bottom of the particle size ruler touches the gravel, the particle size ruler can rotate around the ruler shaft toward the direction close to the gripping portion, thereby achieving intuitive measurement of the particle size of the gravel. A second return spring is provided at one end of the particle size ruler close to the ruler shaft, and the second return spring is connected to the flange at one end away from the particle size ruler. When the gravel is removed, the limiting effect of the outer side of the particle size ruler by the gravel disappears, and the particle size ruler rotates outwardly under the elastic force of the second return spring to return to its original position.

[0016] Optionally, a limiting protrusion is fixedly provided at one end of the flange away from the gripper, and the limiting protrusion can limit the extreme position of the particle size ruler to rotate outward.

[0017] Optionally, the holding portion is a handle, which is a rectangular frame structure, and the movable handle is located inside the rectangular frame structure. The movable handle is also a frame structure, and for comfort, a smooth finger groove is provided on the inner side of the end. The user holds the handle, and then wraps his fingers around the finger groove and makes a fist with force. The fingers can pull the movable handle, which in turn drives the two claws to clamp the gravel, thereby improving the dragging function and clamping force.

[0018] Compared with the prior art, the utility model has achieved the following technical effects:

[0019] The utility model solves the technical problem that there is no tool device specifically used for hand-held sorting of gravel with a particle size greater than 150mm. It assists on-site workers in efficiently sorting gravel, which can reduce the labor intensity of on-site workers and is convenient and durable. The utility model has strong targeted functions and is specially used in the harsh work site of road base filling gravel. It can hand-pick up and drag heavier gravel with a particle size greater than 150mm. The user can hold the hand with one hand slightly tilted to the body and hang the arm down, which is convenient for operation and force, improves work efficiency, and avoids the user from bending over for a long time to pick up with both hands, which will cause body aches. The utility model has a unique design, and all parts are made of thick steel, which is strong and durable, with few parts, compact structure, and easy maintenance; a particle size ruler is added to the front end, and when it is difficult to make an accurate judgment by visual inspection, the particle size ruler can be used to assist in more accurate measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the structure of the super-grained roadbed filling crushed stone sorting pliers of the utility model;

[0022] Explanation of the reference numerals: 1-handle, 2-tube rod, 3-movable handle, 4-pull rod, 5-bracket, 6-pin shaft, 7-limit shaft, 8-slide groove, 9-first return spring, 10-hand claw, 11-particle size ruler, 12-second return spring, 13-ruler shaft, 14-limit cam. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The purpose of the utility model is to provide an ultra-large-size roadbed filling gravel sorting pliers to solve the problems existing in the above-mentioned prior art. The pliers have a large clamping weight and a good dragging function, and can efficiently implement the gravel sorting work, which can reduce the labor intensity of on-site workers and is convenient and durable.

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] The utility model provides a super-size roadbed gravel sorting pliers, which solves the technical problem that there is no special hand-held tool for sorting super-size gravel larger than 150mm, and assists on-site workers to efficiently carry out gravel sorting work, which can reduce the labor intensity of on-site workers and is convenient and durable. Figure 1 As shown, the sorting pliers body and the action executing mechanism are included. The sorting pliers body includes a handle 1, which is a rectangular frame structure. The movable handle 3 of the action executing mechanism is located in the rectangular frame structure. The movable handle 3 is also a frame structure, and for comfort, a smooth finger groove is opened on the inner side of the end thereof. The user holds the handle 1 with the thumb, and then the other four fingers are wrapped around the finger groove of the movable handle 3. By making a fist, the fingers can pull the movable handle 3. The movable handle 3 is connected to two claws 10 through a pull rod 4, which then drives the two claws 10 to move inwardly toward each other to clamp the gravel, thereby improving the dragging function and clamping force.

[0027] In one of the specific embodiments, in order to enable the hand claw 10 to flexibly clamp the gravel, the present embodiment sets the sorting pliers body as a structure that matches the pipe rod 2 and the bracket 5. The pipe rod 2 and the bracket 5 are both hollow structures. The handle 1 is fixedly arranged at one end of the pipe rod 2, and the bracket 5 is fixedly arranged at the other end of the pipe rod 2. One end of the pipe rod 2 is penetrated into the bracket 5 and communicated with the inside of the bracket 5. The hand claw 10 is movably arranged at the end of the bracket 5 away from the pipe rod 2; one end of the pull rod 4 is connected to the movable pull handle 3, and the other end of the pull rod 4 is provided with a pull rod pin hole. The hand claw 10 is located at the bracket 5. A hand claw pin hole is provided at one end of the frame 5, and the pull rod pin hole and the hand claw pin hole are connected through the pin shaft 6; a slide groove 8 is provided on the side wall of the bracket 5, and the slide groove 8 is a through slide groove, which is symmetrically provided on the two side walls of the bracket 5, and both ends of the pin shaft 6 are slidably penetrated into the slide groove 8, and the slide groove 8 is a long strip groove, so that the pin shaft 6 can move in the slide groove 8 toward the direction of the pipe rod 2 or away from the pipe rod 2; a reset mechanism is provided on the hand claw 10, and when the pulling force on the movable pull handle 3 is cancelled, the reset mechanism can drive the hand claw 10 to rotate outward and reset, so as to facilitate the re-gripping of the gravel next time.

[0028] The handle 1, pipe rod 2 and bracket 5 of the main body of the sorting pliers are fixed into a whole. When performing the sorting operation, the upward pulling force action is carried out inside it, providing support and support for the action execution mechanism. The main components of the action execution mechanism are the movable handle 3, the pull rod 4 and the hand claw 10, which together complete the execution action of the picking pliers tool transmitting the upward pulling force and the force-closing and clamping. During specific work, when the movable handle 3 is pulled up, it drives the pull rod 4, and the pull rod 4 slides upward in the slide groove 8 of the bracket 5 through the pin shaft 6 in the end pin hole. The pin shaft 6 drives the connected hand claw 10 and the first return spring 9. The outer wall of the hand claw 10 is a smooth convex arc structure. The bracket 5 is symmetrically provided with a limit shaft 7 at one end away from the pipe rod 2. The limit shaft 7 is located on the outside of the outer wall of the hand claw 10. Under the squeezing action of the left and right limit shafts 7 on the outer wall of the hand claw 10, the two hand claws 10 move toward each other. Due to the limit mechanism The circular hole at one end of the first return spring 9 of the structure is sleeved on the pin 6, and the other end is fixedly connected to the inner wall of the claw 10, so that the first return spring 9 is squeezed to store energy, and the left and right claws 10 close to pick up the gravel; when the pulling force on the movable handle 3 is cancelled, the pin 6 moves downward along the slide groove 8 under its own gravity, and at the same time, the potential energy of the first return spring 9 is released, and the left and right claws 10 open; usually, the action execution mechanism sags with its own weight, promoting the opening of the left and right claws 10, so as to facilitate the next clamping of gravel.

[0029] In order to prevent the gravel from falling during the process of clamping and picking up the gravel, the present embodiment has a toothed structure evenly arranged on the inner wall of the gripper 10 to facilitate a more secure clamping of the gravel. In other embodiments, a rough surface structure or a rubber pad structure can also be used to increase the friction on the gravel, thereby preventing the gravel from falling off during the clamping process. The inner side of the gripper is a concave arc structure. When the two grippers 10 are closed, the space between the two can clamp gravel of large particle size.

[0030] For gravel, it is sometimes difficult to judge its size by visual inspection. Therefore, in this embodiment, a flange is provided at the end of one of the grippers 10, and a particle size ruler 11 is movably installed on the flange through a ruler shaft 13. When the gripper 10 clamps the gravel, after the bottom side of the particle size ruler 11 touches the gravel, the particle size ruler 11 can rotate around the ruler shaft 13 toward the gripping part, thereby realizing an intuitive measurement of the particle size of the gravel. A second return spring 12 is provided at one end of the particle size ruler 11 close to the ruler shaft 13, and the second return spring 12 is connected to the flange at one end away from the particle size ruler 11. When the gravel is removed, the outer side of the particle size ruler 11 is limited by the gravel and the particle size ruler 11 disappears. Under the elastic force of the second return spring 12, the particle size ruler 11 rotates outward to return to its original position. The first return spring 9 and the second return spring 12 are both existing compression spring structures, which are convenient and durable. In order to prevent the particle size ruler 11 from resetting too much, a limit protrusion 14 is fixedly provided on the end of the flange away from the claw 10. The limit protrusion 14 can limit the extreme position of the outward rotation of the particle size ruler 11. When the particle size ruler 11 rotates outward under the action of the second return spring 12, when it rotates to the position of the limit protrusion 14, the particle size ruler 11 is limited and cannot continue to rotate outward.

[0031] The utility model has a unique design, all parts are made of thick steel, are strong and durable, and have few parts, compact structure and are easy to maintain.

[0032] In the description of the present invention, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A super-size gravel sorting pliers for roadbed filling, characterized in that: include: The main body of the sorting tongs has a gripping portion at one end and two symmetrically arranged claws at the other end, and the two claws are used to clamp the gravel; The action execution mechanism comprises a movable handle arranged near the holding portion, wherein the movable handle is connected to the grippers through a driving component, and pulling the movable handle can drive the two grippers to move toward each other through the driving component.

2. The super-size roadbed gravel sorting pliers according to claim 1 are characterized in that: The main body of the sorting forceps includes a pipe rod and a bracket, both of which are hollow structures. The gripping portion is fixedly arranged at one end of the pipe rod, the bracket is fixedly arranged at the other end of the pipe rod, and the claw is movably arranged at the end of the bracket away from the pipe rod; the driving component passes through the pipe rod and the bracket and is connected to the claw.

3. The ultra-large-size gravel sorting pliers for roadbed filling according to claim 2 are characterized in that: The driving component includes a pull rod movably inserted into the tube rod, one end of the pull rod is connected to the movable handle, the other end of the pull rod is provided with a pull rod pin hole, the end of the claw located in the bracket is provided with a claw pin hole, the pull rod pin hole and the claw pin hole are connected by a pin shaft; a sliding groove is provided on the side wall of the bracket, and both ends of the pin shaft are slidably inserted into the sliding groove; a reset mechanism is provided on the claw.

4. The super-size roadbed gravel sorting pliers according to claim 3 are characterized in that: The reset mechanism comprises a first return spring, a circular hole at one end of the first return spring is sleeved on the pin shaft, and the other end of the first return spring is fixedly connected to the inner wall of the hand claw.

5. The ultra-large-size gravel sorting pliers for roadbed filling according to claim 2, characterized in that: The outer wall of the hand claw is a smooth, outwardly convex arc structure, and the bracket is symmetrically provided with a limiting shaft at one end away from the pipe rod, and the limiting shaft is located on the outside of the outer wall of the hand claw.

6. The ultra-large-size gravel sorting pliers for roadbed filling according to claim 2, characterized in that: The inner side wall of the hand claw is evenly provided with tooth-shaped structures.

7. The super-size roadbed gravel sorting pliers according to claim 1, characterized in that: A flange is provided at the end of one of the grippers, and a particle size ruler is movably mounted on the flange via a ruler shaft. The particle size ruler can rotate around the ruler shaft toward the direction close to the gripping portion. A second return spring is provided at one end of the particle size ruler close to the ruler shaft, and the second return spring is connected to the flange at one end away from the particle size ruler.

8. The ultra-large-size gravel sorting pliers for roadbed filling according to claim 7, characterized in that: A limiting protrusion is fixedly provided at one end of the flange away from the gripper, and the limiting protrusion can limit the extreme position of the particle size ruler to rotate outward.

9. The ultra-large-size gravel sorting pliers for roadbed filling according to claim 1, characterized in that: The holding portion is a handle, and the handle is in a rectangular frame structure.

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