Structure for mechanically adjusting position of sliding rod

Abstract

The utility model discloses a structure for mechanically adjusting the position of a sliding rod, and belongs to the technical field of electric tools. The driving motor is arranged in the machine shell and comprises a machine base, a stator and a rotor, and the rotor is provided with an output shaft; the adjusting mechanism is used for driving the output shaft to rotate without power; the adjusting mechanism comprises a transmission shaft rotationally arranged in the second shell, and the transmission shaft is in transmission connection with the output shaft through a transmission gear; and the knob is fixed at the end part of the transmission shaft and is positioned outside the second shell. According to the reciprocating saw, the rotary knob is manually operated to drive the machine sliding rod assembly to operate, so that the position of the sliding rod can be manually and rapidly adjusted, danger can be reduced, and the machine has better control feeling through mechanical adjustment.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric tools, and in particular relates to a mechanical structure for adjusting the position of a slide bar. Background Art

[0002] A reciprocating saw, a type of power tool, cuts objects back and forth. Its convenience makes it a popular choice. Existing reciprocating saws are typically driven by an electric motor. Blades on conventional reciprocating saws are quickly changed by manually rotating a sliding sleeve. When the sliding sleeve reaches its outermost end, the sleeve can be easily adjusted. At the innermost end, the sleeve becomes difficult to adjust. At this point, the machine must be started slowly to allow the sliding sleeve to reach its outermost end. This poses a risk of injury and prevents quick adjustment to the desired position.

[0003] To this end, the utility model proposes a mechanical structure for adjusting the position of a slide bar. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the rotary sleeve of the existing reciprocating saw cannot be quickly adjusted to a suitable position when the saw blade is replaced, and to propose a mechanical adjustment structure for the position of the slide rod.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a mechanical adjustment structure for the position of a slide bar, comprising:

[0006] chassis;

[0007] The driving motor is arranged in the casing and includes a base, a stator and a rotor, and the rotor has an output shaft;

[0008] An adjusting mechanism is used to drive the output shaft to rotate without electric power.

[0009] As a further description of the above technical solution:

[0010] The chassis includes:

[0011] a first shell;

[0012] The second shell is connected to the first shell, and the driving motor is arranged in the second shell.

[0013] As a further description of the above technical solution:

[0014] The regulatory bodies include:

[0015] A transmission shaft is rotatably disposed in the second housing, and the transmission shaft is connected to the output shaft via a transmission gear;

[0016] The knob is fixed to the end of the transmission shaft and is located outside the second shell.

[0017] As a further description of the above technical solution:

[0018] The adjustment mechanism also includes a reset spring and a limit seat. The reset spring is sleeved on the transmission shaft. The limit seat is fixed on the second shell. The reset spring is located in the limit seat. The lower end of the reset spring rests on the transmission shaft.

[0019] As a further description of the above technical solution:

[0020] The transmission gear comprises a first driven bevel gear and a first driving bevel gear. The first driven bevel gear is fixed on the output shaft, and the first driving bevel gear is fixed on the transmission shaft.

[0021] As a further description of the above technical solution:

[0022] It also includes a reciprocating mechanism, an output shaft is used to drive the reciprocating mechanism to reciprocate, a sliding rod is fixed to the reciprocating end of the reciprocating mechanism, one end of the sliding rod is provided with a slot for inserting a saw blade, and a rotary sleeve is threadedly connected to the sliding rod.

[0023] As a further description of the above technical solution:

[0024] The first shell is provided with a supporting leg for adjusting the stroke of the saw blade, and the supporting leg is provided with an opening for the saw blade to pass through.

[0025] As a further description of the above technical solution:

[0026] The supporting legs are rotatably arranged on the rotating member, and the rotating member is fixed on the first shell.

[0027] As a further description of the above technical solution:

[0028] The reciprocating mechanism includes an outer shell, a main shaft, a transmission mechanism, a balancing block, an eccentric wheel, a slide groove, a pulley and a mounting frame. The outer shell is connected to the first shell, the main shaft is rotatably arranged on the first shell, an eccentric wheel is fixed on the main shaft, a pulley is installed at the upper eccentric part of the eccentric wheel, the pulley is slidably arranged in the slide groove, the slide groove is fixed on the slide rod, the slide rod is slidably arranged in the mounting frame, the lower eccentric part of the eccentric wheel is connected to the balancing block, and the output shaft drives the main shaft to rotate through the transmission mechanism.

[0029] As a further description of the above technical solution:

[0030] The transmission mechanism comprises a second driving bevel gear and a second driven bevel gear, the second driving bevel gear is fixed on the output shaft, and the second driven bevel gear is fixed on the main shaft.

[0031] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0032] The reciprocating saw of the utility model drives the machine slide bar assembly to operate by manually operating the knob, so as to achieve manual and rapid adjustment of the slide bar position, which can reduce the danger, and the mechanical adjustment makes the machine more controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional structural diagram of a mechanical structure for adjusting the position of a slide rod.

[0034] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure with half of the second shell removed.

[0035] Figure 3 for Figure 2 main view.

[0036] Figure 4 It is a schematic diagram of the three-dimensional structure of the reciprocating mechanism in the utility model.

[0037] Figure 5 for Figure 4 Schematic diagram of the three-dimensional structure without the outer shell.

[0038] Legend:

[0039] 1. First housing; 2. Second housing; 3. Slide rod; 4. Notch; 5. Rotating member; 6. Support leg; 7. Knob; 8. Driving motor; 9. First driven bevel gear; 10. Transmission shaft; 11. Output shaft; 12. Limit seat; 13. Return spring; 14. Reciprocating mechanism; 141. Housing; 142. Main shaft; 143. Transmission mechanism; 144. Balance block; 145. Eccentric wheel; 146. Slide groove; 147. Pulley; 148. Mounting frame; 15. First active bevel gear. DETAILED DESCRIPTION

[0040] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 5 The utility model provides a technical solution: a mechanical adjustment structure for the position of a slide bar, comprising: a casing, a drive motor 8 and an adjustment mechanism; the drive motor 8 is arranged in the casing, comprising a base, a stator and a rotor, and the rotor has an output shaft 11; the adjustment mechanism is used to drive the output shaft 11 to rotate without electricity, and rotating the adjustment mechanism can drive the output shaft 11 to rotate, driving the entire slide bar assembly to operate, thereby realizing mechanical adjustment of the slide bar position, and facilitating the installation of the saw blade.

[0042] In a specific embodiment of the present utility model, the casing includes a first shell 1 and a second shell 2; the second shell 2 is connected to the first shell 1, the drive motor 8 is arranged in the second shell 2, the first shell 1 and the second shell 2 are detachably connected by screws, and the first shell 1 or the second shell 2 is composed of two shells, and the two shells are detachably connected by screws.

[0043] In a specific embodiment of the present utility model, the adjustment mechanism includes a transmission shaft 10 and a knob 7: the transmission shaft 10 is rotatably arranged in the second shell 2, and the transmission shaft 10 is connected to the output shaft 11 through a transmission gear; the knob 7 is fixed to the end of the transmission shaft 10, and the knob 7 is located outside the second shell 2. By mechanically rotating the knob 7, the transmission shaft 10 can be driven to rotate. The rotation of the transmission shaft 10 drives the output shaft 11 to rotate through the transmission gear, driving the entire machine slide rod assembly to operate, thereby realizing mechanical adjustment of the slide rod position, and facilitating the installation of the saw blade.

[0044] In a specific embodiment of the present utility model, the adjusting mechanism also includes a return spring 13 and a limit seat 12. The return spring 13 is sleeved on the transmission shaft 10, and the limit seat 12 is fixed on the second housing 2. The return spring 13 is located in the limit seat 12. The lower end of the return spring 13 is against the transmission shaft 10. The transmission gear includes a first driven bevel gear 9 and a first driving bevel gear 15. The first driven bevel gear 9 is fixed on the output shaft 11, and the first driving bevel gear 15 is fixed on the transmission shaft 10. When the return spring 13 is in an initial state, the first driven bevel gear 9 and the first driving bevel gear 15 are not engaged. When the knob 7 is pressed, the first driven bevel gear 9 and the first driving bevel gear 15 are engaged, and then the knob 7 is rotated to realize transmission. When the knob 7 is not pressed, under the resetting action of the return spring 13, the first driven bevel gear 9 and the first driving bevel gear 15 are not engaged.

[0045] In a specific embodiment of the present invention, a reciprocating mechanism 14 is also included. The output shaft 11 is used to drive the reciprocating mechanism 14 to reciprocate. A sliding rod 3 is fixed to the reciprocating end of the reciprocating mechanism 14. A slot 4 for inserting a saw blade is provided at one end of the sliding rod 3. A rotary sleeve is threadedly connected to the sliding rod 3. The saw blade can be clamped by rotating the rotary sleeve.

[0046] In a specific embodiment of the present utility model, a support leg 6 for adjusting the stroke of the saw blade is provided on the first shell 1 , and an opening for the saw blade to pass through is provided on the support leg 6 , and the support leg 6 is rotatably set on the rotating member 5 , and the rotating member 5 is fixed on the first shell 1 .

[0047] In a specific embodiment of the present invention, the reciprocating mechanism 14 includes a housing 141, a main shaft 142, a transmission mechanism 143, a balancing block 144, an eccentric wheel 145, a slide 146, a pulley 147 and a mounting frame 148. The housing 141 is connected to the first housing 1, the main shaft 142 is rotatably arranged on the first housing 1, the eccentric wheel 145 is fixed on the main shaft 142, and a pulley 147 is installed at the eccentric portion of the upper portion of the eccentric wheel 145. The pulley 147 is slidably arranged in the slide 146, and the slide 146 is fixed. Fixed on the slide rod 3, the slide rod 3 is slidably set in the mounting frame 148, the lower eccentric part of the eccentric wheel 145 is connected to the balance block 144, the output shaft 11 drives the main shaft 142 to rotate through the transmission mechanism 143, the transmission mechanism 143 includes a second active bevel gear and a second driven bevel gear, the second active bevel gear is fixed on the output shaft 11, and the second driven bevel gear is fixed on the main shaft 142. The above structure is a prior art. For details, please refer to the structure in patent CN218396251U, which will not be repeated here.

[0048] When the utility model is in use, when the knob 7 is pressed, the first driven bevel gear 9 and the first driving bevel gear 15 are engaged. By mechanically rotating the knob 7, the transmission shaft 10 can be driven to rotate. The rotation of the transmission shaft 10 drives the first driving bevel gear 15 to rotate. The rotation of the first driving bevel gear 15 drives the first driven bevel gear 9 to rotate, and then drives the output shaft 11 to rotate, and drives the reciprocating mechanism 14 to operate, thereby realizing mechanical adjustment of the position of the slide bar 3, and then facilitating the installation of the saw blade. When the knob 7 is not pressed, under the reset action of the reset spring 13, the first driven bevel gear 9 and the first driving bevel gear 15 are not engaged.

[0049] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A mechanical adjustment structure for a slide bar position, characterized in that: include: chassis; A drive motor (8) is disposed in the housing and comprises a base, a stator, and a rotor, wherein the rotor has an output shaft (11); An adjusting mechanism is used for driving the output shaft (11) to rotate without power.

2. The mechanical adjustment slide bar position structure according to claim 1, characterized in that: The housing comprises: A first housing (1); The second housing (2) is connected to the first housing (1), and the drive motor (8) is arranged in the second housing (2).

3. The mechanical adjustment slide bar position structure according to claim 2, characterized in that: The regulating mechanism comprises: A transmission shaft (10) is rotatably disposed in the second housing (2), and the transmission shaft (10) is connected to the output shaft (11) via a transmission gear; A knob (7) is fixed to the end of the transmission shaft (10), and the knob (7) is located outside the second housing (2).

4. The mechanical adjustment structure for the position of a slide bar according to claim 3, characterized in that: The adjustment mechanism further comprises a return spring (13) and a limit seat (12), wherein the return spring (13) is sleeved on the transmission shaft (10), the limit seat (12) is fixed on the second housing (2), the return spring (13) is located in the limit seat (12), and the lower end of the return spring (13) abuts against the transmission shaft (10).

5. The mechanical adjustment structure of the slide bar position according to claim 4, characterized in that: The transmission gear comprises a first driven bevel gear (9) and a first driving bevel gear (15); the first driven bevel gear (9) is fixed on the output shaft (11); and the first driving bevel gear (15) is fixed on the transmission shaft (10).

6. The mechanical adjustment structure for the position of a slide bar according to claim 1, characterized in that: The invention also includes a reciprocating mechanism (14), wherein the output shaft (11) is used to drive the reciprocating mechanism (14) to reciprocate, and a slide rod (3) is fixed to the reciprocating end of the reciprocating mechanism (14), one end of the slide rod (3) is provided with a notch (4) for inserting a saw blade, and a rotary sleeve is threadedly connected to the slide rod (3).

7. The mechanical adjustment structure for the position of a slide bar according to claim 2, characterized in that: The first housing (1) is provided with a support leg (6) for adjusting the stroke of the saw blade, and the support leg (6) is provided with an opening for the saw blade to pass through.

8. The mechanical adjustment structure for the position of a slide bar according to claim 7, characterized in that: The supporting leg (6) is rotatably mounted on the rotating member (5), and the rotating member (5) is fixed on the first housing (1).

9. The mechanical adjustment structure for the position of a slide bar according to claim 6, characterized in that: The reciprocating mechanism (14) includes a housing (141), a main shaft (142), a transmission mechanism (143), a balancing block (144), an eccentric wheel (145), a slide groove (146), a pulley (147) and a mounting frame (148). The housing (141) is connected to the first housing (1). The main shaft (142) is rotatably arranged on the first housing (1). An eccentric wheel (145) is fixed on the main shaft (142). A pulley (147) is installed at an eccentric position on the upper part of the eccentric wheel (145). The pulley (147) is slidably arranged in the slide groove (146). The slide groove (146) is fixed on the slide rod (3). The slide rod (3) is slidably arranged in the mounting frame (148). The lower eccentric position of the eccentric wheel (145) is connected to the balancing block (144). The output shaft (11) drives the main shaft (142) to rotate through the transmission mechanism (143).

10. The mechanical adjustment structure for the position of a slide bar according to claim 9, characterized in that: The transmission mechanism (143) comprises a second driving bevel gear and a second driven bevel gear, the second driving bevel gear is fixed on the output shaft (11), and the second driven bevel gear is fixed on the main shaft (142).

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