CN216235942U

CN216235942U - Multifunctional high-toughness telescopic crowbar with variable fulcrum

Info

Publication number: CN216235942U
Application number: CN202122469408.1U
Authority: CN
Inventors: 蒋步斌
Original assignee: Nantong Tianmao Machinery Manufacturing Co ltd
Current assignee: Nantong Tianmao Machinery Manufacturing Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-04-08
Anticipated expiration: 2031-10-13

Abstract

The utility model discloses a multifunctional high-toughness telescopic crowbar with a variable fulcrum, which comprises a crowbar main body, wherein an extension rod is sleeved outside the crowbar main body, a thread groove is formed in the lower end of the extension rod, a threaded rod is connected with the thread groove in an internal thread manner, a nut is fixed on the threaded rod, and a plurality of groups of positioning grooves are formed in the outer wall of the crowbar main body. Through the extension rod that sets up, the thread groove, the threaded rod, positioning groove, mutually supporting of nut and handle, make the threaded rod imbed fast or leave in the positioning groove, form or remove the fixed connection of extension rod and pinch bar main part, it is flexible to make the extension rod can follow the surface of pinch bar main part fast and move, thereby the power arm length of device has been increased, required strength when reducing the sled heavy object, the use of the device of being convenient for, through having seted up the inner chamber in holding the handle, make the inner chamber can place appurtenance such as screwdriver, the appurtenance in the inner chamber directly takes out when being convenient for needs, the suitability of device has been improved.

Description

Multifunctional high-toughness telescopic crowbar with variable fulcrum

Technical Field

The utility model relates to the technical field of crowbars, in particular to a multifunctional high-toughness telescopic crowbar with a variable fulcrum.

Background

The utility model provides a crowbar, a labour tool extensively is arranged in railway rails overhauls and maintains, utilizes lever principle to let the heavy object overcome gravity, lifts the heavy object from ground and takes place the way of displacement, and the crowbar divide into six arriss rods, round rod and flat sled, and six arriss rods and round rod can be processed into: the two ends of the flat pry are round, the two ends of the flat pry are flat, or the one end of the flat pry is round and the other end of the flat pry is flat, and the flat pry can be used as a construction tool or a hardware tool, can be used as a vehicle-mounted tool of an automobile, is divided into a length and a thickness, and is mostly used as a tire repairing tool.

However, the existing pry bar on the market has a single function and is integrally designed in a fixed mode, when a heavy object needs to be pried, the overall length of the pry bar cannot be directly increased, the force arm is increased, and therefore the multifunctional high-toughness telescopic pry bar with the variable fulcrum is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a multifunctional high-toughness telescopic crowbar with a variable fulcrum, which aims to solve the problems in the background art.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a multi-functional high tenacity telescopic crowbar of variable fulcrum, includes the crowbar main part, the outside cover of crowbar main part is equipped with the extension bar, the thread groove has been seted up to the extension bar lower extreme, thread groove female connection has the threaded rod, be fixed with the nut on the threaded rod, multiunit positioning groove has been seted up to crowbar main part outer wall, in the threaded rod one end embedding positioning groove, the extension bar upper end is fixed with the handle.

As a preferable technical scheme of the utility model, an inner cavity is formed in the handle, a pull handle is arranged at the upper end of the inner cavity, and a convex block is fixed on the outer wall of the lower end of the pull handle and embedded into the inner cavity.

As a preferred technical scheme of the utility model, the cross section of the crowbar main body is designed to be a regular hexagon, and the inner wall of the extension rod is designed to be a regular hexagon corresponding to the crowbar main body.

As a preferred technical scheme of the utility model, the screw cap is in a cylindrical design, and a plurality of groups of anti-skid grooves are formed in the outer wall of the screw cap at equal intervals.

As a preferred technical scheme of the utility model, the outer wall of the grip is glued with an anti-slip sleeve, and the anti-slip sleeve is made of flexible rubber.

As a preferred technical scheme of the utility model, a plurality of groups of sealing rubber rings are glued on the outer wall of the bump at equal intervals.

Compared with the prior art, the utility model can achieve the following beneficial effects:

1. the extension rod, the thread groove, the threaded rod, the positioning groove, the nut and the handle are matched with each other, so that the threaded rod can be quickly embedded into or separated from the positioning groove, the fixed connection between the extension rod and the prying bar main body is formed or removed, and the extension rod can quickly move and stretch along the surface of the prying bar main body, so that the length of a power arm of the device is increased, the required strength for prying a heavy object is reduced, and the device is convenient to use;

2. through having set up the inner chamber in holding the handle, make the inner chamber can place appurtenance such as screwdriver, directly take out the appurtenance of inner chamber when being convenient for need, improved the practicality of device to form sealed effect to the inner chamber through the lug on the pulling handle, avoid external liquid to enter the inner chamber, carry out the corrosion to the appurtenance of inner chamber.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of the pull cup of the present invention;

FIG. 4 is an enlarged view of A of FIG. 2 in accordance with the present invention;

wherein: 1. a crowbar body; 2. an extension rod; 3. a thread groove; 4. a threaded rod; 5. a positioning groove; 6. a nut; 7. a grip; 8. an inner cavity; 9. pulling a handle; 10. a bump; 11. sealing the rubber ring; 12. an anti-slip sleeve.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-4, the multifunctional high-toughness telescopic crowbar with the variable fulcrum comprises a crowbar main body 1, wherein an extension rod 2 is sleeved outside the crowbar main body 1, a thread groove 3 is formed in the lower end of the extension rod 2, a threaded rod 4 is connected with the thread groove 3 in a threaded manner, a nut 6 is fixed on the threaded rod 4, a plurality of groups of positioning grooves 5 are formed in the outer wall of the crowbar main body 1, one end of the threaded rod 4 is embedded into the positioning grooves 5, and a handle 7 is fixed at the upper end of the extension rod 2;

during the use, through rotating nut 6, make threaded rod 4 receive the effort of nut 6 and rotate along thread groove 3, rotate under threaded effect as threaded rod 4 and leave inside positioning groove 5, make threaded rod 4 remove the limiting displacement to extension rod 2, can outwards stimulate extension rod 2 this moment, make extension rod 2 elongate suitable distance after, make thread groove 3 on the extension rod 2 aim at positioning groove 5 in the crowbar main part 1, the antiport nut 6, make threaded rod 4 imbed once more in the positioning groove 5 of corresponding position, form extension rod 2 and the fixed connection of crowbar main part 1, make extension rod 2 can stretch out and draw back along the surface of crowbar main part 1 fast, thereby the power arm length of device has been increased, required strength when reducing the sled and moving the heavy object, the use of the device of being convenient for.

In other embodiments, an inner cavity 8 is formed in the handle 7, a pull handle 9 is arranged at the upper end of the inner cavity 8, a convex block 10 is fixed on the outer wall of the lower end of the pull handle 9, and the convex block 10 is embedded in the inner cavity 8;

through having seted up inner chamber 8 in handle 7, make inner chamber 8 can place appurtenance such as screwdriver, directly take out the appurtenance in the inner chamber 8 when being convenient for need, improved the practicality of device to through drawing lug 10 on 9 to inner chamber 8 formation sealing effect, avoid external liquid to get into in the inner chamber 8, carry out the corrosion to the appurtenance in the inner chamber 8.

In other embodiments, the cross section of the crowbar main body 1 is designed into a regular hexagon, and the inner wall of the extension rod 2 is designed into a regular hexagon corresponding to the crowbar main body 1;

through this design, avoided the device when using, extension rod 2 rotates in the 1 surface of pinch bar main part, has ensured extension rod 2's normal use.

In other embodiments, the nut 6 is designed in a cylindrical shape, and the outer wall of the nut 6 is provided with a plurality of sets of anti-slip grooves at equal intervals;

through this design, increased the frictional force of nut 6 with the hand, the hand of being convenient for rotates nut 6.

In other embodiments, the outer wall of the grip 7 is glued with the anti-slip sleeve 12, and the anti-slip sleeve 12 is made of flexible rubber;

through the design, the palm is prevented from being greatly abraded when the device is used, and the comfort when the device is used is improved.

In other embodiments, a plurality of groups of sealing rubber rings 11 are glued on the outer wall of the bump 10 at equal intervals;

through this design, reduced the clearance of lug 10 and inner chamber 8 inner wall, improved the sealed effect of lug 10 to inner chamber 8.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a flexible pinch bar of multi-functional high tenacity of variable fulcrum, includes pinch bar main part (1), its characterized in that: pry main part (1) outside cover is equipped with extension bar (2), thread groove (3) have been seted up to extension bar (2) lower extreme, thread groove (3) female connection has threaded rod (4), be fixed with nut (6) on threaded rod (4), multiunit positioning groove (5) have been seted up to pry main part (1) outer wall, in threaded rod (4) one end embedding positioning groove (5), extension bar (2) upper end is fixed with handle (7).

2. The multifunctional high-toughness telescopic crowbar with the variable fulcrum according to claim 1, is characterized in that: an inner cavity (8) is formed in the handle (7), a pull handle (9) is arranged at the upper end of the inner cavity (8), a convex block (10) is fixed on the outer wall of the lower end of the pull handle (9), and the convex block (10) is embedded into the inner cavity (8).

3. The multifunctional high-toughness telescopic crowbar with the variable fulcrum according to claim 1, is characterized in that: the cross section of the crowbar main body (1) is designed into a regular hexagon, and the inner wall of the extension rod (2) is designed into a regular hexagon corresponding to the crowbar main body (1).

4. The multifunctional high-toughness telescopic crowbar with the variable fulcrum according to claim 1, is characterized in that: the screw cap (6) is in a cylindrical design, and a plurality of groups of anti-skidding grooves are formed in the outer wall of the screw cap (6) at equal intervals.

5. The multifunctional high-toughness telescopic crowbar with the variable fulcrum as claimed in claim 2, wherein: the anti-skidding handle is characterized in that an anti-skidding sleeve (12) is adhered to the outer wall of the handle (7), and the anti-skidding sleeve (12) is made of flexible rubber.

6. The multifunctional high-toughness telescopic crowbar with the variable fulcrum as claimed in claim 2, wherein: and a plurality of groups of sealing rubber rings (11) are glued on the outer wall of the bump (10) at equal intervals.