Force storage structure of striking tool

Abstract

The utility model discloses a force storage structure of a striking tool, which relates to the technical field of striking tools and comprises a force storage component forming a power source of the striking tool, the force storage component comprises an air cylinder assembly and a driving assembly, the air cylinder assembly comprises an inner air cylinder detachably connected with the striking tool, and an outer air cylinder is hermetically arranged outside the inner air cylinder. The inner air cylinder and the outer air cylinder are coaxially arranged, and the size of an air storage cavity in the outer air cylinder is adjustable. A piston assembly is arranged in the inner air cylinder in a sealed mode. Through the arrangement of the air storage chamber, when nailing work is carried out, a certain amount of air is pre-stored in the air storage chamber, then under the driving action of the driving assembly, the firing pin drives the piston assembly to move so that the air storage chamber becomes smaller, and then the air pressure in the air storage chamber becomes larger; the piston assembly and the firing pin are driven to move reversely until the gas reaches a critical point, the nailing work is completed, and gas or an air compressor and the like do not need to be used as a power source in the nailing process.

Description

Technical Field

[0001] The utility model relates to the technical field of striking tools, in particular to a force storage structure of a striking tool. Background Art

[0002] With the rapid development of furniture and decoration, the demand for nail guns as an important tool in the construction and decoration industry is also increasing. Among them, pneumatic nail guns are a type of nail gun. They have the advantages of small size, fast nailing speed, and no need for external circuit equipment, and have been widely used. At the same time, they are also easy to operate and maintain, which reduces labor and reduces decoration costs. The striking kinetic energy of existing nail gun products on the market at home and abroad mostly comes from gunpowder, gas or air compressors. Among them, gunpowder and gas are consumables with high construction costs, and are flammable and explosive during transportation. Air compressors need to be connected to air pipes, which is inconvenient to construct and need to be connected to a power supply. In summary, it is inconvenient to obtain the required kinetic energy of the above-mentioned nail gun during use. For this reason, we propose a force storage structure for a striking tool to solve the technical problems in the prior art. Utility Model Content

[0003] The purpose of the utility model is to propose a force storage structure for a striking tool in order to solve the problems in the prior art. The force storage structure is different from the technical solution in the prior art that uses gas or air compressors to drive the nails to be shot out. The use of gas or air compressors can be avoided. Kinetic energy can be obtained by directly energizing the air compressors, which is easy to use.

[0004] In order to solve the above problems, the utility model provides the following technical solutions:

[0005] A force storage structure for a striking tool includes a force storage component constituting a power source of the striking tool, the force storage component includes a cylinder assembly and a drive assembly, wherein:

[0006] The cylinder assembly comprises an inner cylinder detachably connected to the striking tool, the outer cylinder is sealed on the outside of the inner cylinder, and the inner cylinder and the outer cylinder are coaxially arranged, and the size of the air storage chamber inside the outer cylinder is adjustable; the inner cylinder is sealed on the inside of the inner cylinder, and a piston assembly is arranged at one end of the piston assembly, and a firing pin connected to the striking tool is arranged, and the end of the firing pin away from the piston assembly is arranged on the ballistic inner cavity of the striking tool;

[0007] The driving assembly is arranged on the striking tool, and is used for driving the firing pin to move horizontally.

[0008] As a further solution of the utility model: the piston assembly includes a power storage piston, which is coaxially arranged inside the inner cylinder, and the outer sleeve of the power storage piston is provided with a first balance ring and a first sealing ring, and the power storage piston is coaxially arranged with the first balance ring and the first sealing ring.

[0009] As a further solution of the utility model: one end of the inner cylinder is open, and a self-lubricating piston is arranged inside the open end, and the self-lubricating piston is coaxially arranged with the power storage piston.

[0010] As a further solution of the utility model: the outer sleeve of the self-lubricating piston is provided with a second balancing ring and a second sealing ring, and the self-lubricating piston is coaxially arranged with the second balancing ring and the second sealing ring.

[0011] As a further solution of the utility model: an inner thread is provided on the inner side of the inner cylinder, and the inner cylinder is detachably connected to the striking tool via the inner thread.

[0012] As a further solution of the utility model: the outer part of the inner cylinder is provided with an external thread, and the inner cylinder is detachably connected to the inner side of the outer cylinder through the external thread.

[0013] As a further solution of the utility model: one end of the outer cylinder is set to be open, and a cylinder cover is threadedly arranged at the open end, and an air nozzle is arranged on the cylinder cover.

[0014] As a further solution of the utility model: the air storage chamber is formed between the outer cylinder and the inner cylinder, and the air nozzle is connected to the air storage chamber; an adjustment chamber is formed between the force storage piston and the self-lubricating piston, and the adjustment chamber and the air storage chamber are dynamically balanced.

[0015] As a further solution of the utility model: the driving assembly includes a driving motor, and the driving motor is used to drive the striker to move horizontally.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] By setting up the adjustable-size air storage chamber formed between the inner cylinder and the outer cylinder, when nailing, a certain amount of air is first pre-stored in the air storage chamber, and then under the driving action of the driving assembly, the firing pin drives the piston assembly to move, thereby reducing the air storage chamber, and then the air pressure in the air storage chamber increases, until the gas reaches a critical point to drive the piston assembly and the firing pin to move in the opposite direction, completing the nailing work. The method is easy to use, and does not require the use of gas or air compressors as power sources during the nailing process, so the use cost is low. At the same time, the use of gas is avoided, thereby ensuring the construction safety of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a front view structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0022] Figure 4 yes Figure 2 Schematic diagram of the cross-sectional structure in the state;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the inner cylinder and the outer cylinder in the utility model;

[0024] Figure 6 It is a schematic diagram of the cross-sectional structure of the inner cylinder in the utility model;

[0025] Figure 7 It is a schematic diagram of the cross-sectional structure of the outer cylinder in the utility model;

[0026] Figure 8 It is a schematic diagram of the cross-sectional structure of the cylinder head in the utility model.

[0027] In the figure: 1, striking tool; 101, firing pin; 2, power storage component; 20, cylinder assembly; 21, drive assembly; 201, inner cylinder; 2011, self-lubricating piston; 2012, second balance ring; 2013, second sealing ring; 202, outer cylinder; 203, piston assembly; 2031, power storage piston; 2032, first balance ring; 2033, first sealing ring; 204, cylinder head; 205, air nozzle. DETAILED DESCRIPTION

[0028] 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 of 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.

[0029] like Figure 1-Figure 8 As shown, a force storage structure of a striking tool includes a force storage component 2 constituting a power source of the striking tool 1, the force storage component 2 includes a cylinder assembly 20 and a drive assembly 21, wherein the drive assembly 21 includes a drive motor and a gear box, etc., and the drive motor can be used to horizontally drive the striker 101 on the striking tool 1. It should be noted that the drive assembly 21 in this embodiment is a conventional technical means in the prior art, and in order to avoid cumbersome text, it will not be repeated here.

[0030] like Figure 4-Figure 7As shown, the cylinder assembly 20 includes an inner cylinder 201 detachably connected to the striking tool 1, an outer cylinder 202 is provided on the outer seal of the inner cylinder 201, and the inner cylinder 201 and the outer cylinder 202 are coaxially arranged, and an air storage chamber is formed between the outer cylinder 202 and the inner cylinder 201, and the size of the air storage chamber is adjustable; the inner cylinder 201 is provided with a piston assembly 203 in a sealed manner, and a striker 101 connected to the striking tool 1 is provided at one end of the piston assembly 203, and the striker 101 is provided on the ballistic inner cavity of the striking tool 1 away from the piston assembly 203; one end of the inner cylinder 201 is open, and a self-lubricating piston 2011 is provided inside the open end, and the self-lubricating piston 2011 is coaxially arranged with the piston assembly 203. An adjustment chamber is formed between the piston assembly 203 and the self-lubricating piston 2011, and the adjustment chamber is dynamically balanced with the air storage chamber.

[0031] During the initial use, a certain amount of gas is first filled into the air storage chamber, and then the driving assembly 21 is used to drive the firing pin 101 and the piston assembly 203 to move to the right, and then the interior of the adjustment chamber will be pushed to become smaller, that is, the self-lubricating piston 2011 moves to the right. The rightward movement of the self-lubricating piston 2011 will compress the air storage chamber, so that the air pressure inside the air storage chamber becomes larger. When the air pressure increases to the critical point, the air pressure pushes the self-lubricating piston 2011 and the piston assembly 203 to move to the left in the opposite direction, and also drives the firing pin 101 to move to the left, and then the firing pin 101 will move horizontally in the inner cavity of the trajectory to achieve the nailing work.

[0032] In this process, a certain amount of air is pre-stored inside the air storage chamber, and then under the driving action of the driving assembly 21, the firing pin 101 moves to make the air storage chamber smaller, and then the air pressure inside the air storage chamber increases, until the gas reaches the critical point to drive the firing pin 101 to move to the left, completing the nailing work. It is easy to use and does not require the use of gas or air compressors as power sources, thereby reducing the cost of use.

[0033] like Figure 4-Figure 6 As shown, for the arrangement of the piston assembly 203, the piston assembly 203 includes a power storage piston 2031, which is coaxially arranged inside the inner cylinder 201, and the outer sleeve of the power storage piston 2031 is provided with a first balance ring 2032 and a first sealing ring 2033, and the power storage piston 2031 is coaxially arranged with the first balance ring 2032 and the first sealing ring 2033. At the same time, the outer sleeve of the self-lubricating piston 2011 is provided with a second balance ring 2012 and a second sealing ring 2013, and the self-lubricating piston 2011 is coaxially arranged with the second balance ring 2012 and the second sealing ring 2013. The above-mentioned regulating chamber is formed between the power storage piston 2031 and the self-lubricating piston 2011.

[0034] like Figure 6As shown, the power storage piston 2031 and the interior of the inner cylinder 201 can be sealed by using the first balance ring 2032 and the first sealing ring 2033; the self-lubricating piston 2011 and the interior of the inner cylinder 201 can be sealed by using the second balance ring 2012 and the second sealing ring 2013, thereby ensuring the airtightness of the adjustment chamber formed between the power storage piston 2031 and the self-lubricating piston 2011.

[0035] like Figure 6-Figure 7 As shown, in order to realize the installation of the inner cylinder 201 and the outer cylinder 202, an outer thread can be provided on the outer side of the inner cylinder 201, and the inner cylinder 201 is detachably connected to the inner side of the outer cylinder 202 through the outer thread. At the same time, an inner thread is provided on the inner side of the inner cylinder 201, and the inner cylinder 201 is detachably connected to the striking tool 1 through the inner thread. Figure 8 As shown, further, one end of the outer cylinder 202 is set to be open, and a cylinder cover 204 is threadedly provided at the open position, and a gas nozzle 205 is provided on the cylinder cover 204. The gas nozzle 205 is connected to the gas storage chamber, and the gas nozzle 205 can be used to process the pre-stored gas into the gas storage chamber.

[0036] In order to ensure the sealing performance between the inner cylinder 201 and the outer cylinder 202 and the sealing performance between the inner cylinder 201 and the ballistic inner cavity of the striking tool 1, corresponding sealing rings may be added during the above-mentioned threaded installation process.

[0037] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A force storage structure for a striking tool, characterized in that: The invention comprises a power storage component (2) constituting a power source of a striking tool (1), wherein the power storage component (2) comprises a cylinder assembly (20) and a drive assembly (21), wherein: The cylinder assembly (20) comprises an inner cylinder (201) detachably connected to the striking tool (1); the outer cylinder (202) is provided with an outer seal on the outer side of the inner cylinder (201); the inner cylinder (201) and the outer cylinder (202) are coaxially arranged; the size of the air storage chamber inside the outer cylinder (202) is adjustable; the inner seal of the inner cylinder (201) is provided with a piston assembly (203); one end of the piston assembly (203) is provided with a firing pin (101) connected to the striking tool (1); the end of the firing pin (101) away from the piston assembly (203) is provided on the ballistic inner cavity of the striking tool (1); The driving assembly (21) is arranged on the striking tool (1), and the driving assembly (21) is used to drive the striker (101) to move horizontally; The piston assembly (203) comprises a power storage piston (2031), the power storage piston (2031) is coaxially arranged inside the inner cylinder (201), the outer sleeve of the power storage piston (2031) is provided with a first balance ring (2032) and a first sealing ring (2033), and the power storage piston (2031) is coaxially arranged with the first balance ring (2032) and the first sealing ring (2033); One end of the inner cylinder (201) is open, and a self-lubricating piston (2011) is arranged inside the open end, and the self-lubricating piston (2011) is coaxially arranged with the power storage piston (2031); The self-lubricating piston (2011) is externally sleeved with a second balancing ring (2012) and a second sealing ring (2013), and the self-lubricating piston (2011) is coaxially arranged with the second balancing ring (2012) and the second sealing ring (2013).

2. A force storage structure for a striking tool according to claim 1, characterized in that: An internal thread is provided on the inner side of the inner cylinder (201), and the inner cylinder (201) is detachably connected to the striking tool (1) via the internal thread.

3. A force storage structure for a striking tool according to claim 2, characterized in that: The outer portion of the inner cylinder (201) is provided with an external thread, and the inner cylinder (201) is detachably connected to the inner side of the outer cylinder (202) via the external thread.

4. A force storage structure for a striking tool according to claim 3, characterized in that: One end of the outer cylinder (202) is arranged to be open, and a cylinder cover (204) is threadedly arranged at the open end, and a gas nozzle (205) is arranged on the cylinder cover (204).

5. A force storage structure for a striking tool according to claim 4, characterized in that: The air storage chamber is formed between the outer cylinder (202) and the inner cylinder (201), and the air nozzle (205) is connected to the air storage chamber; an adjustment chamber is formed between the force storage piston (2031) and the self-lubricating piston (2011), and the adjustment chamber and the air storage chamber are dynamically balanced.

6. A force storage structure for a striking tool according to claim 5, characterized in that: The driving assembly (21) comprises a driving motor, and the driving motor is used to drive the striker (101) to move horizontally.

Images