Air pick with replaceable pick drill rod

Abstract

The utility model belongs to the technical field of air picks, and particularly relates to an air pick with a replaceable pick rod, which comprises a main body, a handrail arranged on one side of the main body, a driving part arranged below the main body, a mounting part arranged below the driving part, a mounting groove arranged on one side inside the mounting part, and a threaded groove arranged inside the lower part of the mounting part. A limiting sleeve is arranged on one side of the exterior of the mounting part, and a fixing pin is arranged in the limiting sleeve; a fixing mechanism is arranged below the mounting part, a pickaxe drill rod body is arranged in the fixing mechanism, a limiting mechanism is arranged in the mounting groove, and a connecting mechanism is arranged on one side of the limiting mechanism; the limiting mechanism comprises a connecting rod, a clamping block, a limiting disc and a reset spring. According to the pneumatic pick, through the cooperation of the limiting mechanism installed in the installation part and the connecting mechanism installed at one end of the pick rod body, the pick rod is easier and more convenient to install and detach, and therefore the practicability of the pneumatic pick is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic picks, in particular to a pneumatic pick with a replaceable pick chisel. Background Art

[0002] A pneumatic pick is a handheld construction tool that uses compressed air as its power and uses impact to break hard objects. Pneumatic picks play a very important role in construction. They can greatly reduce the workload of construction workers and are easy to carry. However, the pick used by pneumatic picks will wear out after long-term use, thus affecting the use effect. Therefore, the pick needs to be replaced.

[0003] The existing technology has the following problems: the prior art "a pneumatic pick with replaceable pickaxe" with publication number CN218488302U "includes a pneumatic pick machine, a position-locking connection mechanism and a position-limiting sliding mechanism, the pneumatic pick machine is provided with a connecting head, and the position-locking connection mechanism and the position-limiting sliding mechanism are both provided on the connecting head";

[0004] The above-mentioned device realizes convenient replacement of the pickaxe through the cooperation of the worm and the worm wheel. However, since the worm and the worm wheel in the above-mentioned device are not provided with a certain limiting structure, the pneumatic pickaxe is prone to accidental touching during use and transportation, causing the pickaxe to fall off, thereby posing a greater safety hazard. At the same time, the above-mentioned device is not convenient enough for replacing the pickaxe when in use. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a pneumatic pick with a replaceable pick, which solves the problem that the pick is easy to fall off and the replacement of the pick is not convenient during use due to the lack of a limiting mechanism in the loading and unloading structure of the existing pneumatic pick with a replaceable pick.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pneumatic pick with a replaceable pick, comprising a main body, a handrail is arranged on one side of the main body, a driving part is arranged below the main body, a mounting part is arranged below the driving part, a mounting groove is arranged on one side of the mounting part, a threaded groove is arranged on the lower part of the mounting part, a limiting sleeve is arranged on one side of the mounting part, and a fixing pin is arranged inside the limiting sleeve;

[0008] A fixing mechanism is arranged below the mounting portion, a pickaxe body is arranged inside the fixing mechanism, a limiting mechanism is arranged inside the mounting groove, and a connecting mechanism is arranged on one side of the limiting mechanism;

[0009] The limiting mechanism includes a connecting rod, a clamping block, a limiting plate and a reset spring. The clamping block is fixedly installed on one end of the connecting rod, and a reset spring is fixedly connected to one side surface of the limiting plate. The limiting mechanism acts on the connecting mechanism above the pickaxe body to limit and fix it.

[0010] As a preferred technical solution of the utility model, the fixing mechanism includes a fixing sleeve, a threaded column and a through hole. The threaded column is fixedly mounted on the surface of the fixing sleeve, and a through hole is opened inside the threaded column.

[0011] As a preferred technical solution of the utility model, the connecting mechanism includes a fixing cap, a fixing rod and a movable seat, the fixing cap is fixedly installed with a fixing rod at the lower part thereof, and the movable seat is sleeved on the outer surface of the fixing rod.

[0012] As a preferred technical solution of the utility model, the limiting sleeve is fixedly mounted on the outer surfaces of both sides of the mounting portion, the fixing pin and the limiting sleeve are movably mounted, and the fixing mechanism is threadedly mounted on the mounting portion.

[0013] As a preferred technical solution of the utility model, the connecting rod is sleeved inside the mounting portion and the limiting sleeve, the reset spring is fixedly connected between the limiting plate and the mounting groove, and the clamping block is clamped with the connecting mechanism.

[0014] As a preferred technical solution of the utility model, the threaded column is threadedly connected to a threaded groove opened inside the lower part of the mounting portion, the through hole passes through the threaded column and the fixing sleeve, and the pick body is sleeved with the through hole.

[0015] As a preferred technical solution of the utility model, the fixing rod is fixedly connected between the pickaxe body and the fixing cap, and a groove half the size of the movable seat is provided inside the fixing cap.

[0016] Compared with the prior art, the utility model provides a pneumatic pick with a replaceable pickaxe, which has the following beneficial effects:

[0017] This kind of pneumatic pick with replaceable pick has a fixing cap installed on the top of the pick through a fixing rod, and the outer surface of the fixing rod is slidably connected with a movable seat, and a groove of half the size of the movable seat is opened inside the fixing seat, and a limiting mechanism is installed in the mounting grooves inside the two sides of the mounting part, and a clamping block is fixedly connected to one end of the connecting rod of the limiting mechanism, and the clamping block is clamped between the movable seat and the fixing cap, and a reset spring is fixedly connected between the limiting plate on the surface of the clamping block and the mounting groove. Therefore, when replacing the pick body, it is only necessary to push the pick body upwards to make the movable seat move upwards, thereby contacting the clamping block and the reset spring. The locking block is moved to the bottom of the movable seat under the action of the positioning spring, and the pick drill body is pulled downward so that the locking block pushes the upper part of the movable seat into the interior of the fixing cap. Since one side of the locking block is provided with an inclined surface, the locking block can be separated from the connecting mechanism under the action of the reset spring and the inclined surfaces of the fixing cap and the movable seat, thereby realizing convenient replacement of the pick drill. At the same time, due to the limiting sleeve installed on the outside of the mounting part, the connecting rod is movably connected with the limiting sleeve, and the fixing pin is inserted between the limiting sleeve and the connecting rod, so that the limiting mechanism can be fixed, thereby avoiding the risk of the pick drill body falling off during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of the overall installation structure of a pneumatic pick with a replaceable pickaxe according to the utility model;

[0019] Figure 2 This is a schematic diagram of the fixing mechanism structure of a pneumatic pick with a replaceable pickaxe according to the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the installation part of a pneumatic pick with a replaceable pickaxe according to the utility model;

[0021] Figure 4 It is an enlarged schematic diagram of the installation structure of the limit mechanism of a pneumatic pick with a replaceable pickaxe according to the utility model;

[0022] Figure 5 This is a schematic diagram of the connection mechanism structure of a pneumatic pick with a replaceable pickaxe according to the utility model;

[0023] Figure 6 The utility model is a pneumatic pick with a replaceable pickaxe. Figure 1 A schematic diagram of the enlarged structure in the middle.

[0024] In the figure: 1. main body; 2. handrail; 3. driving part; 4. mounting part; 5. fixing mechanism; 51. fixing sleeve; 52. threaded column; 53. through hole; 6. pick body; 7. mounting groove; 8. limiting mechanism; 81. connecting rod; 82. block; 83. limiting plate; 84. reset spring; 9. connecting mechanism; 91. fixing cap; 92. fixing rod; 93. movable seat; 10. threaded groove; 11. limiting sleeve; 12. fixing pin. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-6 In this embodiment: a pneumatic pick with a replaceable pick, comprising a main body 1, a handrail 2 is arranged on one side of the main body 1, a driving part 3 is arranged below the main body 1, the pneumatic pick can be used through the driving part 3, a mounting part 4 is arranged below the driving part 3, a mounting groove 7 is arranged on one side of the inner part of the mounting part 4, a thread groove 10 is arranged inside the lower part of the mounting part 4, a fixing mechanism 5 is installed through the thread groove 10, a limiting sleeve 11 is arranged on one side of the outer part of the mounting part 4, and a fixing pin 12 is arranged inside the limiting sleeve 11;

[0027] A fixing mechanism 5 is provided below the mounting portion 4, a pickaxe body 6 is provided inside the fixing mechanism 5, a limiting mechanism 8 is provided inside the mounting groove 7, and a connecting mechanism 9 is provided on one side of the limiting mechanism 8;

[0028] The limiting mechanism 8 includes a connecting rod 81, a block 82, a limiting plate 83 and a return spring 84. The block 82 is fixedly installed on one end of the connecting rod 81, and the return spring 84 is fixedly connected to the surface of one side of the limiting plate 83. The limiting mechanism 8 acts on the connecting mechanism 9 above the pickaxe body 6 to limit and fix it.

[0029] See also Figure 1 and Figure 2 In this embodiment, the fixing mechanism 5 includes a fixing sleeve 51, a threaded column 52 and a through hole 53. The threaded column 52 is fixedly mounted on the surface of the fixing sleeve 51, and the through hole 53 is opened inside the threaded column 52.

[0030] In the above embodiment, since a threaded column 52 is installed above the fixing sleeve 51, the fixing mechanism 5 can be easily disassembled and assembled with the mounting portion 4. At the same time, the through hole 53 opened inside the threaded column 52 enables the pick body 6 to be easily disassembled and assembled.

[0031] Specifically, the threaded column 52 is threadedly connected to the threaded groove 10 opened in the lower interior of the mounting portion 4 , the through hole 53 passes through the threaded column 52 and the fixing sleeve 51 , and the pick body 6 is sleeved with the through hole 53 .

[0032] The fixing mechanism 5 and the mounting portion 4 can be installed and fixed by the cooperation between the threaded column 52 and the threaded groove 10 of the mounting portion 4 .

[0033] See also Figure 3 and Figure 5 In this embodiment, the connecting mechanism 9 includes a fixed cap 91, a fixed rod 92 and a movable seat 93. The fixed rod 92 is fixedly installed at the lower part of the inner part of the fixed cap 91, and the movable seat 93 is sleeved on the outer surface of the fixed rod 92.

[0034] In the above embodiment, the fixing cap 91 installed on the upper end surface of the fixing rod 92 can limit the movable seat 93, and the movable seat 93 is slidably connected to the outer surface of the fixing rod 92. At the same time, the movable seat 93 can slide on the surface of the fixing rod 92 under the action of the limiting mechanism 8.

[0035] Furthermore, the fixing rod 92 is fixedly connected between the pickaxe body 6 and the fixing cap 91 , and a groove half the size of the movable seat 93 is provided inside the fixing cap 91 .

[0036] The fixing cap 91 and the connecting mechanism 9 can be installed and fixed by the fixing rod 92, and the groove opened inside the fixing cap 91 can allow the upper part of the movable seat 93 to enter the interior of the fixing cap 91, so that a smooth plane is formed by the movable seat 93 and the fixing cap 91, so that the limiting mechanism 8 can be moved out.

[0037] See also Figure 3 , Figure 4 and Figure 6 In this embodiment, the connecting rod 81 is sleeved inside the mounting portion 4 and the limiting sleeve 11 , the return spring 84 is fixedly connected between the limiting plate 83 and the mounting groove 7 , and the clamping block 82 is clamped with the connecting mechanism 9 .

[0038] In the above embodiment, the limit plate 83 can drive the connecting rod 81 to move inside the mounting portion 4 under the action of the reset spring 84, and the block 82 can limit the connecting mechanism 9 through the cooperation of the connecting mechanism 9, the limit sleeve 11 and the fixing pin 12, thereby realizing the installation of the pickaxe body 6.

[0039] As for additional explanation, the limit sleeve 11 is fixedly installed on the outer surfaces on both sides of the mounting part 4, the fixing pin 12 is movably installed on the limit sleeve 11, the fixing mechanism 5 is threadedly installed on the mounting part 4, and the connecting rod 81 is limited and fixed by the cooperation of the limit sleeve 11 and the fixing pin 12, so as to avoid falling off of the pick after the installation is completed.

[0040] The working principle and use process of the utility model are as follows: after the operator removes the fixing pin 12, the fixing sleeve 51 is rotated to drive the threaded column 52 to rotate inside the mounting part 4, thereby first disassembling the fixing mechanism 5, and then the movable seat 93 is moved upward by pushing the pick chisel body 6 upward, so that the block 82 and the return spring 84 move the block 82 to the bottom of the movable seat 93, and the pick chisel body 6 is pulled downward so that the block 82 pushes the upper half of the movable seat 93 into the interior of the fixing cap 91. Since one side of the block 82 is provided with an inclined surface, the block 82 can be separated from the connecting mechanism 9 under the action of the return spring 84 and the inclined surfaces of the fixing cap 91 and the movable seat 93, thereby realizing convenient replacement of the pick chisel body 6.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pneumatic pick with a replaceable pick, comprising a main body (1), a handrail (2) being provided on one side of the main body (1), a driving portion (3) being provided below the main body (1), a mounting portion (4) being provided below the driving portion (3), a mounting groove (7) being provided on one side of the interior of the mounting portion (4), a threaded groove (10) being provided on the interior of the lower portion of the mounting portion (4), a limiting sleeve (11) being provided on one side of the exterior of the mounting portion (4), a fixing pin (12) being provided inside the limiting sleeve (11), and characterized in that: A fixing mechanism (5) is arranged below the mounting portion (4), a pickaxe body (6) is arranged inside the fixing mechanism (5), a limiting mechanism (8) is arranged inside the mounting groove (7), and a connecting mechanism (9) is arranged on one side of the limiting mechanism (8); The limiting mechanism (8) comprises a connecting rod (81), a clamping block (82), a limiting plate (83) and a return spring (84); the clamping block (82) is fixedly mounted on one end of the connecting rod (81); a return spring (84) is fixedly connected to a surface of one side of the limiting plate (83); the limiting mechanism (8) acts on the limiting and fixing of the connecting mechanism (9) above the pickaxe body (6).

2. A pneumatic pick with replaceable pickaxe according to claim 1, characterized in that: The fixing mechanism (5) comprises a fixing sleeve (51), a threaded column (52) and a through hole (53); the threaded column (52) is fixedly mounted on the surface of the fixing sleeve (51), and the through hole (53) is provided inside the threaded column (52).

3. The pneumatic pick with replaceable pickaxe according to claim 1, characterized in that: The connecting mechanism (9) comprises a fixing cap (91), a fixing rod (92) and a movable seat (93); the fixing rod (92) is fixedly mounted at the lower part of the fixing cap (91); and the movable seat (93) is sleeved on the outer surface of the fixing rod (92).

4. The pneumatic pick with replaceable pickaxe according to claim 1, characterized in that: The limiting sleeve (11) is fixedly mounted on the outer surfaces of both sides of the mounting portion (4), the fixing pin (12) and the limiting sleeve (11) are movably mounted, and the fixing mechanism (5) and the mounting portion (4) are threadedly mounted.

5. The pneumatic pick with replaceable pickaxe according to claim 1, characterized in that: The connecting rod (81) is sleeved inside the mounting portion (4) and the limiting sleeve (11), the return spring (84) is fixedly connected between the limiting plate (83) and the mounting groove (7), and the clamping block (82) is clamped with the connecting mechanism (9).

6. A pneumatic pick with replaceable pickaxe according to claim 2, characterized in that: The threaded column (52) is threadedly connected to a threaded groove (10) provided in the lower interior of the mounting portion (4); the through hole (53) penetrates the threaded column (52) and the fixing sleeve (51); and the pickaxe body (6) is sleeved with the through hole (53).

7. The pneumatic pick with replaceable pickaxe according to claim 3, characterized in that: The fixing rod (92) is fixedly connected between the pickaxe body (6) and the fixing cap (91), and a groove half the size of the movable seat (93) is provided inside the fixing cap (91).

Images