Handheld shoot nail fastening tool

Abstract

The utility model relates to a handheld shoot nail fastening tool which comprises a shell, a lithium battery, a nail clamp, a driving lifting mechanism, a working air cylinder, a firing pin, a piston and a support. The device further comprises a front Hall sensor, a pressing block fixed to the support, a sensing push piece arranged between the pressing block and the support, a depth adjusting rod connected to the sensing push piece, and a depth adjusting wheel connected to the depth adjusting rod in a threaded mode. The ejector rod is connected to the top of the depth adjusting rod, the reset spring is arranged between a spring step on the support and an induction push piece, two guide steps are arranged on the surface of the support, a first induction magnet inducting the front Hall sensor is arranged on the induction push piece, and the induction push piece is arranged between the two guide steps in a sliding mode. The two guide steps arranged on the support provide a clear sliding track for the induction push piece, the inclination and clamping stagnation phenomena of the push piece in the working process are effectively prevented, and the straightness and stability of the push piece in the front-back moving process are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tools, in particular to a handheld nail-shooting and fastening tool. Background Art

[0002] In the current field of handheld nail-shooting fastening tools, technological advances are constantly driving the optimization of tool performance and the improvement of operational convenience. However, in early designs, there were some technical bottlenecks that needed to be resolved, especially in terms of the stability and reliability of the precision components inside the tool. Specifically, previous handheld nail-shooting fastening tools are usually equipped with an inductive push piece, which is located between the pressure block and the bracket and is responsible for key sensing and driving functions. However, these designs often lack an effective guiding support mechanism, which causes the inductive push piece to easily shift or even get stuck when performing forward and backward sliding movements. This situation not only affects the normal operation of the tool and reduces work efficiency, but may also cause instability during the operation process and increase safety hazards.

[0003] Specifically, the traditional layout of the induction push piece sliding directly between the pressure block and the bracket, due to the lack of an integrated guide mechanism, makes it difficult for the induction push piece to maintain a stable straight path during force or high-speed movement, and it is easy to tilt, shake, and even interfere with the surrounding structure, ultimately affecting the accuracy and continuity of the entire fastening operation. In addition, long-term abnormal friction will accelerate the wear of parts, shorten the service life of tools, and increase maintenance costs.

[0004] In view of the above technical defects, the present application proposes a handheld nail-shooting fastening tool with the function of guiding an induction push piece. Utility Model Content

[0005] In view of the deficiencies in the background technology, the utility model provides a handheld nail-shooting and fastening tool.

[0006] The technical solution adopted by the utility model is: a handheld nail-shooting fastening tool, including a shell, a lithium battery, a nail clamp, a driving lifting mechanism, a working cylinder, a firing pin, a piston and a bracket, and also includes a front Hall sensor, a pressure block fixed on the bracket, an induction push piece arranged between the pressure block and the bracket, a depth adjustment rod connected to the induction push piece, a depth adjustment wheel threadedly connected to the depth adjustment rod, a push rod connected to the top of the depth adjustment rod, and a reset spring between a spring step arranged on the bracket and the induction push piece, the surface of the bracket is provided with two guide steps, the induction push piece is provided with a first induction magnet mutually inductive with the above-mentioned front Hall sensor, and the induction push piece is slidably arranged between the two guide steps.

[0007] Furthermore, the driving lifting mechanism includes an electric motor, a gear box connected to the output end of the electric motor, and a lifting wheel connected to the output end of the gear box. The outer ring of the lifting wheel is provided with a plurality of lifting teeth that cooperate with the tooth grooves on the striker, and the lifting wheel is provided with a second induction magnet.

[0008] Furthermore, it also includes a rear Hall sensor that mutually inductively senses with the second induction magnet, and a mounting step is integrally formed on the connecting section where the bracket is connected to the cylinder. The front Hall sensor is fixed to the above-mentioned mounting step by bolts, and the rear Hall sensor is fixed to the side of the bracket by bolts.

[0009] Furthermore, a stop step is provided at the rear side of the guide step.

[0010] Furthermore, the guide step has an extension section extending forward, a guide groove is provided on the top of the extension section, and sliding steps that slidably cooperate with the guide groove are provided on both sides of the top of the push rod.

[0011] The beneficial effects of the utility model are:

[0012] 1. Enhanced stability and precision: The two guide steps set on the bracket provide a clear sliding track for the induction push piece, effectively preventing the push piece from tilting and getting stuck during work, and significantly improving its straightness and stability when moving forward and backward, thereby ensuring accurate positioning when shooting nails and improving the accuracy and reliability of fastening operations.

[0013] 2. Improved durability and reduced maintenance costs: By reducing unnecessary friction and collision caused by lack of guidance, this design effectively extends the service life of the induction pusher and related components, reduces the failure rate caused by wear, and thus reduces the repair frequency and overall maintenance cost of the tool.

[0014] 3. Enhanced safety: By optimizing the guide structure of the induction push piece, the risk of accidental jamming or dislocation that may occur during operation is reduced, the safety of operators is guaranteed, and the possibility of construction accidents is reduced.

[0015] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0016] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is an internal schematic diagram of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the utility model from another perspective.

[0020] Figure 4 for Figure 3 Enlarged schematic diagram at point A in the middle.

[0021] Figure 5 It is a cross-sectional schematic diagram of the utility model.

[0022] Figure 6 It is a partial exploded schematic diagram of the top rod of the utility model. DETAILED DESCRIPTION

[0023] 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.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] The utility model provides a handheld nail-shooting and fastening tool.

[0026] In this embodiment, refer to Figure 1-6 The handheld nail fastening tool comprises a housing 1, a lithium battery 2, a nail clamp 3, a driving and lifting mechanism, a working cylinder 4, a firing pin 5, a piston 6 and a bracket 7, and also comprises a front Hall sensor 8, a pressure block 9 fixed on the bracket, an induction push piece 10 arranged between the pressure block and the bracket, a depth adjustment rod 11 connected to the induction push piece, a depth adjustment wheel 12 threadedly connected to the depth adjustment rod, a push rod 13 connected to the top of the depth adjustment rod, and a spring step 14 arranged on the bracket and a reset spring 15 between the induction push piece and the spring step 14 arranged on the bracket. Two guide steps 16 are arranged on the surface of the bracket. A first induction magnet 17 that mutually inducts with the above-mentioned front Hall sensor is provided on the induction push piece, and the induction push piece is slidably arranged between the two guide steps.

[0027] In the above technical solution, by setting two guide steps on the bracket and making the first induction magnet built into the induction push piece slide between the two guide steps, the problem of tilting and jamming of the induction push piece caused by the lack of guidance is effectively solved, thereby improving the smoothness of operation and the stability of the tool.

[0028] In addition, by setting a depth adjustment wheel, the extension length of the push rod can be adjusted to adjust the nailing depth to adapt to different working conditions and meet different materials and operation requirements.

[0029] Specifically, the driving lifting mechanism includes an electric motor 18, a gear box 19 connected to the output end of the electric motor, and a lifting wheel 20 connected to the output end of the gear box. The outer ring of the lifting wheel is provided with a plurality of lifting teeth 21 driven by the tooth grooves on the striker, and a second induction magnet 22 is provided on the lifting wheel; it also includes a rear Hall sensor 23 that mutually inducts with the second induction magnet, and a mounting step 24 is integrally formed on the connecting section where the bracket is connected to the cylinder, the front Hall sensor is fixed to the above-mentioned mounting step by bolts, and the rear Hall sensor is fixed to the side of the bracket by bolts.

[0030] This application uses lithium batteries as the power source, with an efficient electric motor and a precision gearbox to achieve fast and continuous operation capabilities. The lifting wheel and the teeth on the firing pin are precisely matched to ensure the accuracy of each lifting action, improving the stability and consistency of shooting. At the same time, the second induction magnet and the rear Hall sensor are integrated to monitor the position of the lifting wheel in real time, which is used to determine whether the lifting wheel has returned to the compression position, and indirectly determine whether the cylinder compression state is in place, increasing the safety of the equipment and preventing misoperation.

[0031] Specifically, a stop step 25 is provided at the rear side of the guide step.

[0032] A stop step is added to the rear side of the guide step. This design effectively limits the over-travel sliding of the induction push piece, avoids working beyond the predetermined stroke, and ensures the reliable operation of the tool under various working conditions.

[0033] Specifically, the guide step has an extension section 27 extending forward, a guide groove 28 is provided on the top of the extension section, and sliding steps 29 that are slidably matched with the guide groove are provided on both sides of the top of the push rod.

[0034] By setting the sliding cooperation of the guide groove and the sliding step, the forward and backward movement of the push rod can be guided and limited, further ensuring the stable and reliable operation of the tool under various working conditions.

[0035] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the concept of the utility model is not limited to this utility model. Any modification using the concept of the utility model will be included in the scope of protection of this patent right.

Claims

1. A handheld nail-shooting fastening tool, comprising a housing, a lithium battery, a nail clamp, a driving and lifting mechanism, a working cylinder, a firing pin, a piston and a bracket, characterized in that: It also includes a front Hall sensor, a pressure block fixed on the bracket, an induction push piece arranged between the pressure block and the bracket, a depth adjustment rod connected to the induction push piece, a depth adjustment wheel threadedly connected to the depth adjustment rod, a push rod connected to the top of the depth adjustment rod, and a reset spring between the spring step arranged on the bracket and the induction push piece, the surface of the bracket is provided with two guide steps, the induction push piece is provided with a first induction magnet that mutually inductions with the above-mentioned front Hall sensor, and the induction push piece is slidably arranged between the two guide steps.

2. The handheld nail fastening tool according to claim 1, characterized in that: The driving lifting mechanism includes an electric motor, a gear box connected to the output end of the electric motor, and a lifting wheel connected to the output end of the gear box. The outer ring of the lifting wheel is provided with a plurality of lifting teeth drivingly matched with the tooth grooves on the striker, and the lifting wheel is provided with a second induction magnet.

3. The handheld nail fastening tool according to claim 2, characterized in that: It also includes a rear Hall sensor that mutually inductively senses the second induction magnet. A mounting step is integrally formed on the connecting section where the bracket is connected to the cylinder. The front Hall sensor is fixed to the above-mentioned mounting step by bolts, and the rear Hall sensor is fixed to the side of the bracket by bolts.

4. The handheld nail fastening tool according to claim 1, characterized in that: A stop step is provided at the rear side of the guide step.

5. The handheld nail-shooting fastening tool according to claim 1, characterized in that: The guide step has an extension section extending forward, a guide groove is arranged on the top of the extension section, and sliding steps which are slidably matched with the guide groove are arranged on both sides of the top of the push rod.

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