Double-end multifunctional damping impact tool

Abstract

The utility model discloses a double-end multifunctional shock absorption impact tool which comprises a steel drill rod body, a steel drill bit is arranged at one end of the steel drill rod body, the other end of the steel drill rod body is detachably connected with a matched tool, and the steel drill rod body is sleeved with a first limiting sleeve, a handheld sleeve, a shock absorption spring and a second limiting assembly from top to bottom. The second limiting assembly comprises a second limiting sleeve and a second fastening sleeve connected with the second limiting sleeve in a matched and sleeved mode, the second limiting sleeve is provided with a cavity, the cavity is provided with a big-end-down guiding inclined face, the second fastening sleeve is of a cylindrical structure tightly attached to the guiding inclined face, and the diameter of the second fastening sleeve is gradually increased from top to bottom. A plurality of longitudinal telescopic grooves are evenly formed in the circumferential direction of the second fastening sleeve, the second fastening sleeve is fixed to the steel drill rod body through a second locking bolt, the damping spring is limited between the second limiting sleeve and the handheld sleeve, and the damping steel drill rod is simple in structure, convenient to assemble and good in damping effect when hitting the cement ground.

Description

Technical Field

[0001] The utility model relates to the technical field of building impact tools, in particular to a double-head multifunctional shock-absorbing impact tool. Background Art

[0002] The steel chisel is a commonly used construction tool, especially in road construction in mountainous areas. It is usually driven into soft rock by a sledgehammer to drill a hole, and explosives are loaded in the drilled hole to blast the rock. It is also commonly used to pry rocks. Even today when construction tools are highly developed, the steel chisel is still indispensable. However, the existing steel chisel has a single function. The vibration generated when hitting the ground or stone will cause numbness in the operator's hands. It is not suitable for long-term use and affects work efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a double-headed multifunctional shock-absorbing impact tool. An operator can hold a hand-held sleeve tightly, and under the action of a shock-absorbing spring, the vibration generated by impacting the ground can be greatly buffered, and the operator's hands will not become numb due to long-term use. The tool can be used for a long time, thereby improving work efficiency.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is a double-headed multifunctional shock-absorbing impact tool, comprising: a steel drill rod body, one end of the steel drill rod body is provided with a steel drill bit for impacting the ground, and the other end is detachably connected with a matching tool through a threaded sleeve, the steel drill rod body is respectively sleeved with a first limiting sleeve, a hand-held sleeve, a shock-absorbing spring and a second limiting assembly from top to bottom, the second limiting assembly comprises a second limiting sleeve and a second fastening sleeve that is sleeved with the second limiting sleeve, the second limiting sleeve has a cavity, the cavity has a guide inclined surface that is small at the top and large at the bottom, the second fastening sleeve is arranged as a cylindrical structure that is tightly attached to the guide inclined surface, the diameter of the second fastening sleeve gradually increases from top to bottom, and a plurality of longitudinal telescopic grooves are evenly distributed along the circumferential direction of the second fastening sleeve, the second fastening sleeve is fixed to the steel drill rod body by a second locking bolt, the first limiting sleeve is fixed to the steel drill rod body by a first locking bolt, and the shock-absorbing spring is limited between the second limiting sleeve and the hand-held sleeve.

[0005] In a preferred embodiment of the present invention, the length of the hand-held sleeve is 1 / 5-1 / 4 of the length of the steel drill rod body.

[0006] In a preferred embodiment of the present invention, the shock absorbing spring can withstand a pressure that is 6-10 times the weight of the entire impact tool.

[0007] In a preferred embodiment of the utility model, a step portion is provided on the other end of the steel drill rod body, and one end of the threaded sleeve has a retaining ring matched with the step portion.

[0008] In a preferred embodiment of the present invention, the retaining ring and the threaded sleeve are integrally formed.

[0009] In a preferred embodiment of the utility model, a limiting groove is provided on the end surface of the other end of the steel drill rod body, and a limiting block matching with the limiting groove is provided on the rear end surface of the matching tool.

[0010] In a preferred embodiment of the present invention, the limiting groove is a straight-line structure.

[0011] In a preferred embodiment of the present invention, the matching tool is provided with an external thread matching the internal thread of the threaded casing.

[0012] In a preferred embodiment of the utility model, a plurality of groove structures for fixing the second locking bolts are provided at intervals on the steel drill rod body.

[0013] In a preferred embodiment of the present invention, the matching tool is a wrench or a screwdriver bit.

[0014] The beneficial effects of the utility model are as follows: the practical double-headed multifunctional shock-absorbing impact tool has a simple structure and is easy to assemble and disassemble. The operator can hold the handheld sleeve tightly, and the vibration generated by impacting the ground can be buffered a lot under the action of the shock-absorbing spring. The operator's hands will not be numb due to long-term use. The tool can be used for a long time, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 The utility model is a structural schematic diagram of the threaded casing and the steel drill rod during installation. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-2 The utility model discloses a double-headed multifunctional shock-absorbing impact tool, comprising: a steel drill rod body 1, one end of the steel drill rod body is provided with a steel drill bit 101 for impacting the ground, and the other end is detachably connected with a matching tool 3 through a threaded sleeve 2, wherein the matching tool can be selected according to the use requirements, and can be a screwdriver head or a wrench, etc., and in order to enhance the stability of the connection, a secondary tightening nut 12 can be installed between the threaded sleeve and the matching tool, and the steel drill rod body is respectively provided with a first limiting sleeve 4, a hand-held sleeve 5, a shock-absorbing spring 6 and a second limiting assembly from top to bottom, the second limiting assembly comprises a second limiting sleeve 7 and a second fastening sleeve 8 which is sleeved with the second limiting sleeve, and the second limiting sleeve has a cavity, wherein the cavity has a guiding inclined surface which is small at the top and large at the bottom, and the second fastening sleeve is arranged to be opposite to the guiding inclined surface The second fastening sleeve has a wedge-shaped cylindrical structure, and the diameter of the second fastening sleeve gradually increases from top to bottom. A plurality of longitudinal expansion grooves 9 are evenly distributed along the circumferential direction of the second fastening sleeve, wherein the length of the longitudinal expansion groove is approximately half of the length of the second fastening sleeve. The shock-absorbing spring is limited between the second limiting sleeve and the hand-held sleeve. When the operator holds the hand-held sleeve and hits the steel drill bit to the ground or stone, the rebound force will be dispersed and released under the buffering effect of the shock-absorbing spring, reducing the numbness of the operator's hands caused by vibration. The guiding slope of the second limiting sleeve can wrap the second fastening sleeve of the cylindrical structure. The plurality of longitudinal expansion grooves make the second fastening sleeve have a certain elasticity, better adaptability, uniform force, easy installation, and better fastening effect.

[0020] Specifically, the second fastening sleeve is fixed to the steel drill rod body by the second locking bolt 10, and the first limiting sleeve is fixed to the steel drill rod body by the first locking bolt 11. A plurality of groove structures for fixing the second locking bolt are provided on the steel drill rod body at intervals. The second locking bolt cooperates with the groove and is tightened to better fix the hand-held sleeve. The length of the hand-held sleeve is 1 / 5-1 / 4 of the length of the steel drill rod body, which is convenient for gripping. The shock-absorbing spring can withstand a pressure of 6-10 times the weight of the entire impact tool, which can achieve a good shock-absorbing effect.

[0021] Specifically, a step portion 102 is provided on the other end of the steel drill rod body, and one end of the threaded sleeve has a retaining ring 21 that matches the step portion, wherein the retaining ring and the threaded sleeve are integrally formed, and a limiting groove is provided on the end surface of the other end of the steel drill rod body, and a limiting block 13 that matches the limiting groove is provided on the rear end surface of the matching tool. The limiting groove is a straight-line structure, and the matching arrangement of the limiting groove and the limiting block can effectively prevent the matching tool from rotating. The matching tool is provided with an external thread that matches the internal thread of the threaded sleeve. During installation, the threaded sleeve is first sleeved on the steel drill rod body, and the limiting step can prevent the threaded sleeve from slipping out. After the limiting block on the rear end surface of the matching tool is inserted into the limiting groove, the threaded sleeve and the matching tool are screwed and fixed, and the installation is convenient and quick.

[0022] The beneficial effects of the utility model are: simple structure, easy disassembly and assembly, the operator can hold the handheld sleeve tightly, and the vibration generated by impacting the ground can be greatly buffered under the action of the shock-absorbing spring, and the operator's hands will not be numb due to long-term use. It can be used for a long time, and the work efficiency is improved.

[0023] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A double-headed multifunctional shock-absorbing impact tool, characterized in that: include: A steel drill rod body, one end of which is provided with a steel drill bit for impacting the ground, and the other end is detachably connected to a matching tool through a threaded sleeve, the steel drill rod body is respectively provided with a first limit sleeve, a hand-held sleeve, a shock-absorbing spring and a second limit assembly from top to bottom, the second limit assembly includes a second limit sleeve and a second fastening sleeve that is sleeved with the second limit sleeve, the second limit sleeve has a cavity, the cavity has a guide inclined surface that is small at the top and large at the bottom, the second fastening sleeve is arranged to be a cylindrical structure that is tightly attached to the guide inclined surface, the diameter of the second fastening sleeve gradually increases from top to bottom, and a plurality of longitudinal telescopic grooves are evenly distributed along the circumferential direction of the second fastening sleeve, the second fastening sleeve is fixed to the steel drill rod body by a second locking bolt, the first limit sleeve is fixed to the steel drill rod body by a first locking bolt, and the shock-absorbing spring is limited between the second limit sleeve and the hand-held sleeve.

2. A double-headed multifunctional shock-absorbing impact tool according to claim 1, characterized in that: The length of the hand-held sleeve is 1 / 5-1 / 4 of the length of the steel drill rod body.

3. A double-headed multifunctional shock-absorbing impact tool according to claim 1, characterized in that: The shock absorbing spring can withstand a pressure that is 6-10 times the weight of the entire impact tool.

4. A double-headed multifunctional shock-absorbing impact tool according to claim 1, characterized in that: A step portion is arranged on the other end of the steel drill rod body, and a retaining ring matched with the step portion is arranged on one end of the threaded sleeve.

5. A double-headed multifunctional shock-absorbing impact tool according to claim 4, characterized in that: The retaining ring is integrally formed with the threaded sleeve.

6. A double-headed multifunctional shock-absorbing impact tool according to claim 1, characterized in that: A limiting groove is arranged on the end surface of the other end of the steel drill rod body, and a limiting block matching with the limiting groove is arranged on the rear end surface of the matching tool.

7. A double-headed multifunctional shock-absorbing impact tool according to claim 6, characterized in that: The limiting groove is a straight-line structure.

8. A double-headed multifunctional shock-absorbing impact tool according to claim 1, characterized in that: The matching tool is provided with an external thread matching the internal thread of the threaded sleeve.

9. A double-headed multifunctional shock-absorbing impact tool according to claim 1, characterized in that: The steel drill rod body is provided with a plurality of groove structures for fixing the second locking bolt at intervals.

10. A double-headed multifunctional shock-absorbing impact tool according to claim 1, characterized in that: The matching tool is a wrench or a screwdriver bit.

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