CN217620406U - Combined force supply mechanism, driving device and nail gun - Google Patents
Combined force supply mechanism, driving device and nail gun Download PDFInfo
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- CN217620406U CN217620406U CN202221501041.5U CN202221501041U CN217620406U CN 217620406 U CN217620406 U CN 217620406U CN 202221501041 U CN202221501041 U CN 202221501041U CN 217620406 U CN217620406 U CN 217620406U
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Abstract
The utility model belongs to the technical field of fastening equipment, a combined force supply mechanism, drive arrangement and power actuated setting device are related to. The utility model discloses a nail gun has drive arrangement and this drive arrangement has combined force supply mechanism. This combined power supply mechanism includes cylinder body, rod seat, penetrates nail pole and spring unit, wherein, the spring unit has: at least two layers of spring parts which are arranged along the moving direction of the rod seat; the linkage piece is arranged between the two adjacent layers of spring parts and is used for enabling the two layers of spring parts to be linked, each layer of spring part comprises at least one force supply spring, and all the force supply springs in each layer of spring part are of the same type; the force supply springs in the spring parts of the two adjacent layers are different in type. After the spring parts of the multiple layers are combined with each other, a larger comprehensive elastic coefficient can be formed in a unit space to supplement larger nail-shooting power, and the use of a high-power nail-shooting gun is met.
Description
Technical Field
The utility model belongs to the technical field of fastening equipment, a combined force supply mechanism, drive arrangement and power actuated setting device is related to.
Background
At present, the existing nailing gun is mostly a pneumatic nailing gun, the pneumatic nailing gun needs to supplement air pressure, auxiliary equipment such as an air compressor and the like need to be connected through a special line when the pneumatic nailing gun is used, the wire length and the constraint of the auxiliary equipment are easy to receive during working, and the pneumatic nailing gun is not convenient enough.
The patent number is 201921395877. X's chinese utility model discloses a nailing gun, the female end tool comprises a gun body, rifle clamp subassembly and nailing component, the rifle body is including supplying power mechanism and nailing gun mouth, rifle clamp unit mount is on the nailing gun mouth, the inner of nailing component is inserted and is established in supplying power mechanism, the outer end sets up on the nailing gun mouth, still be provided with actuating mechanism on the rifle body, actuating mechanism includes driving motor, the last rotation of driving motor is provided with the drive wheel, it has a plurality of teeth to distribute on the drive wheel, set up a plurality of tooth's socket of mutually supporting with the tooth on the nailing component.
The force supply mechanism comprises a guide cylinder and a driving spring, the driving motor enables the nailing component to move back to the nail shooting direction through the driving wheel, so that the driving spring is compressed, then the driving wheel is separated from the nailing component, and the nailing component is shot at a high speed under the action of the driving spring to realize the nail shooting. Compared with a pneumatic nailing gun, the pneumatic nailing gun does not need auxiliary equipment such as an air compressor and an air pipe, and greatly simplifies the structure of the nailing gun, thereby being convenient to carry and operate.
However, this type of nailing gun has a problem of insufficient nailing force, and cannot meet the nailing requirement of a high-power nailing gun.
Disclosure of Invention
In order to solve the above problems, a combined force supply mechanism, a driving device and a nail gun are supplemented.
The utility model adopts the following technical scheme:
the utility model discloses a combined force supply mechanism has been supplemented, include: a cylinder disposed within the nail gun, having a front side and a rear side; the rod seat is movably arranged in the cylinder body and divides the cylinder body into a front side cavity and a rear side cavity; the nail shooting rod is fixedly combined with the rod seat and is provided with a nail shooting end which extends out of the front side part and is used for shooting nails; a spring unit freely installed between the rod seat and the rear side, wherein the spring unit has: at least two layers of spring parts arranged along the moving direction of the rod seat; the linkage piece is arranged between the two adjacent layers of spring parts and is used for enabling the two layers of spring parts to be linked, each layer of spring part comprises at least one force supply spring, and all the force supply springs in each layer of spring part are of the same type; the force supply springs in the spring parts of the two adjacent layers are different in type.
The utility model discloses supplementary combined power supply mechanism can also have such characteristic, first kind supply the power spring as first kind spring, the second kind supply the power spring as second kind spring, first kind spring and second kind spring are established two kinds of constitutions of difference in the spring by equidistance spring, displacement spring, cover respectively, the cover is established the spring and is had at least one inner spring and will at least one inner spring cover is established the outer spring in inside.
The utility model discloses supplementary combined force supply mechanism can also have such a characteristic, first type spring and second type spring constitute by two kinds of differences in cylindrical spring, conical spring, well spill spring, the well convex spring respectively.
The supplementary combined force supply mechanism of the utility model can also be characterized in that at least one layer of spring part comprises a plurality of force supply springs which are arranged in parallel and are symmetrically distributed around the central extension line of the nail shooting rod,
the supplementary combined force supply mechanism of the utility model can also have the characteristic that the layer spring part arranged near the front side part is used as a front layer spring part, the layer spring part arranged near the back side part is used as a back layer spring part, the comprehensive elastic coefficients of the front layer spring part and the back layer spring part are different,
the front layer spring part or the rear layer spring part is provided with at least two force supply springs which are arranged in parallel and are symmetrically distributed around the central extension line of the nail shooting rod.
The utility model discloses supplementary combined force supply mechanism can also have such a characteristic, wherein, the bar stock contains preceding bolster, is used for right the vibration of front spring portion cushions, the back lateral part contains back bolster, is used for right the vibration of back spring portion cushions.
The supplementary combined force supply mechanism of the present invention may further have a feature that a plurality of guide rods arranged in a central symmetry manner are provided in the cylinder body, both ends of each guide rod are respectively fixed to the front side portion and the rear side portion, and the rod seat is movably mounted on the plurality of guide rods; at least one layer of spring part comprises the force supply springs with the same number with the guide rods, and each force supply spring is respectively arranged on the corresponding guide rod.
The supplementary combined force supply mechanism of the present invention may further have a feature in which the link plate has a plurality of mounting portions movably provided on the guide bar and at least one guide bar portion; one end of the layer spring part is mounted on the guide rod part, and the other end of the layer spring part is mounted on the rear side part of the cylinder body or the rod seat.
The utility model discloses supplemented a drive arrangement, installed in the power actuated setting device for supply the power of penetrating the nail, a serial communication port, include: the combined force supply mechanism is used for supplementing the power of the shooting nail; and the driving mechanism is used for driving the combined type force supply mechanism to generate power, wherein the force supply mechanism is the combined type force supply mechanism.
The utility model discloses supplemented a power actuated setting device, a serial communication port, include: and the driving device is used for supplementing the power of the nail shooting, wherein the driving device is the driving device.
Action and Effect of the invention
According to the utility model discloses a power actuated setting device has drive arrangement and this drive arrangement has combined power supply mechanism. The combined force supply mechanism includes a cylinder, a rod seat, a nail injection rod, and a spring unit freely installed between the rod seat and the rear side portion, wherein the spring unit has: at least two layers of spring parts arranged along the moving direction of the rod seat; the linkage piece is arranged between the two adjacent layers of spring parts and is used for linking the two layers of spring parts, each layer of spring part comprises at least one force supply spring, and all the force supply springs in each layer of spring part are of the same type; the force supply springs in the spring parts of the two adjacent layers are different in type. After the spring parts of the multiple layers are combined with each other, a larger comprehensive elastic coefficient can be formed in a unit space to supplement larger nail-shooting power, and the use of a high-power nail-shooting gun is met.
The power supply spring of the layer spring part is a sleeved spring which comprises at least one inner spring and an outer spring sleeved inside the inner spring, and the spiral direction of the inner spring is opposite to that of the outer spring which is adjacent to the outer spring. Each force supply spring is composed of an inner spring and an outer spring, and after the two springs are combined with each other, a larger comprehensive elastic coefficient can be formed in a unit space to supplement larger nail-shooting power and meet the use requirement of a high-power nail-shooting gun. In addition, the spiral directions of the inner spring and the outer spring are opposite, so that the inner spring and the outer spring can be prevented from mutual interference when being compressed or extended, and the internal energy loss is reduced; and the resultant force of the two can be more concentrated.
Wherein, because two layers of comprehensive elastic coefficient of spring portion are different, can be so that spring unit at the in-process of kick-backing after penetrating the nail, through the different acceleration that the different resilience force of two layers of spring portion leads to, cause two layers of layer spring portion to cushion each other, reduce the acceleration of kick-backing to offset the partial resilience force. The impact force acting on the cylinder body is reduced, and the vibration reduction effect is realized. Simultaneously because the acceleration of resilience reduces, also reduced spring unit's the time of quivering, guarantee nail gun job stabilization nature, alleviate user's intensity of labour.
Drawings
Fig. 1 is a schematic structural view of the nail gun of the present invention;
FIG. 2 is a schematic view of the force supply mechanism, the driving mechanism and the gun nozzle of the present invention;
FIG. 3 is a schematic structural view of the force supply mechanism and the gun nozzle of the present invention;
fig. 4 is a cross-sectional view of the drive mechanism and the muzzle of the present invention;
FIG. 5 is a cross-sectional view of the force providing mechanism and the muzzle of the present invention;
FIG. 6 is a cross-sectional view of the force providing mechanism of the present invention;
fig. 7 is a schematic structural view of a first variable pitch spring according to the present invention;
fig. 8 is a schematic structural view of a second variable pitch spring according to the present invention;
fig. 9 is a schematic structural view of a third variable pitch spring of the present invention;
fig. 10 is a schematic structural view of the coaxial arrangement of the sleeved springs of the present invention;
fig. 11 is a schematic view of a plurality of inner springs symmetrically arranged in the spring set according to the present invention.
1-a force supply mechanism; 2-a drive mechanism; 3-a housing; 4-a lithium battery module; 5-gun nozzle; 6-a nail feeding device;
11-a cylinder body; 111-the anterior lateral section; 112-posterior lateral part; 12-a pole base; 13-shooting a nail rod;
14-layer spring portion; 141-a force supply spring; 1411-an inner spring; 1412 an outer spring; 142-a pitch spring; 1421-pitch segment; 1422-equidistant segment; 1423 — first equidistant section; 1424-second equidistant section; 1425-transition section; 15-linkage pieces; 151-a mounting portion; 152-a guide rod part; 16-a guide bar; 17-a cushioning member; 18-front cushion; 19-rear cushion;
20-a drive platform; 21-notched gear; 211-teeth; 212-a notch portion; 22-a reducer; 23-a drive motor; 24-a cam; 25-limit switch; 26-drive teeth.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.
The first embodiment is as follows:
fig. 1 is a schematic structural view of the nail gun of the present invention.
As shown in fig. 1, the nail gun includes a gun nozzle 5, a nail feeding device 6, a driving device, a lithium battery module 4, and a housing 3.
The gun nozzle 5 is internally provided with a shooting channel and is provided with an ejection hole used as an ejection nail; the nail feeding device 6 is provided with a nail passing channel, nails are arranged in the nail passing channel, and the launching channel is connected with the nail passing channel; the rear end of the gun nozzle 5 is provided with a driving device for driving the shooting nail. The outside parcel of drive arrangement has shell 3, and the rear of shell 3 extends there is the handle, and the lithium cell module 4 of supplementing the energy for actuating mechanism 2 is installed to the handle lower extreme, and the handle upper end is provided with the nail switch that penetrates that is used for controlling drive arrangement.
Fig. 2 is a schematic structural diagram of the force supply mechanism, the driving mechanism and the gun nozzle of the present invention, and fig. 3 is a schematic structural diagram of the force supply mechanism and the gun nozzle of the present invention.
As shown in fig. 2, the driving apparatus includes a force supply mechanism 1 and a driving mechanism 2.
Wherein, the force supply mechanism 1 is arranged at the rear end of the gun nozzle 5 and is used for supplementing the power for striking the nail; the driving mechanism 2 is arranged on one side of the force supply mechanism 1 and is used as an external device of the force supply mechanism 1 for controlling the force supply mechanism 1 to strike the nail.
Fig. 4 is a cross-sectional view of the drive mechanism and the muzzle of the present invention.
As shown in fig. 4, a driving platform 20 is integrally formed on one side of the front portion 111, a driving mechanism 2 is disposed on the driving platform 20, and the driving mechanism 2 includes a driving gear 26 disposed on one side of the nail shooting rod 13, a notch gear 21 mounted on the driving platform 20, a speed reducer 22, and a driving motor 23.
The output end of the driving motor 23 is connected to the input end of the speed reducer 22, the output end of the speed reducer 22 is provided with a notch gear 21, and the notch gear 21 is provided with a tooth portion 211 meshed with the driving teeth 26 and a notch portion 212 not meshed with the driving teeth 26.
For convenience of installation, the driving platform 20 is perpendicular to the working surface of the front side 111. The driving motor 23 is installed on the lower end surface of the driving platform 20 through the speed reducer 22, and the notch gear 21 is installed on the upper end surface of the driving platform 20. A cam 24 and a limit switch 25 are further arranged above the notch gear 21, and the cam 24 and the notch gear 21 rotate synchronously. When the convex portion of the cam 24 touches the limit switch 25, the limit switch 25 controls the driving motor 23 to stop rotating.
Wherein, lithium battery module 4 supplies power for driving motor 23, penetrates the nail switch and is used for controlling driving motor 23 work.
The driving teeth 26 are provided on the side of the nail driving shaft 13 adjacent to the notch gear 21 and are engaged with the tooth portions 211 of the notch gear 21. The length of all the driving teeth 26 is matched with the compression length of the spring unit, and the number of teeth of the tooth portion 211 is matched with the number of teeth of all the driving teeth 26. In this embodiment, the tooth 211 occupies approximately 3/4 of the circumference of the notch tooth and the notch 212 occupies approximately 1/4 of the circumference of the notch tooth, and the notch 21 is rotated 270 ° and the pin-ejecting lever 13 is moved by the amount of the spring unit compressed to the pin-ejecting position.
When the tooth part 211 is meshed with the driving tooth 26, the rotation of the notch gear 21 can drive the nail shooting rod 13 to move; when the notch 212 faces the nail shooting rod 13, that is, the tooth 211 does not engage with the driving tooth 26, at this time, the nail shooting rod 13 is in a state of being restrained by the unnotched gear 21, and the nail shooting can be realized.
Fig. 5 is a cross-sectional view of the force supply mechanism and the gun nozzle of the present invention.
As shown in fig. 5, the force supply mechanism 1 includes a cylinder 11, a rod base 12, a nail ejecting rod 13, a spring unit, and a cushioning member 17.
The cylinder 11 is made of a metal material, the cylinder 11 has a front side portion 111 and a rear side portion 112, and the front side portion 111 and the rear side portion 112 may be integrally formed at the front and rear ends of the cylinder or may be separately provided at the front and rear ends of the cylinder. In the present embodiment, the cylinder 11 is provided separately, that is, a front portion 111 and a rear portion 112 are fixed to the front and rear ends of the cylinder by screws, and the gun nozzle 5 is mounted on the front portion 111.
The cylinder 11 has a plurality of symmetrically disposed guide rods 16 therein, each guide rod 16 has two ends fixed to the front side 111 and the rear side 112, respectively, and the rod seat 12 is movably mounted on the plurality of guide rods 16. Specifically, the front end and the rear end of the guide rod 1 are both provided with mounting convex columns, mounting grooves matched with the mounting convex columns in shape are formed in the front side portion 111 and the rear side portion 112, and the guide rod 1 is fixed in the cylinder body 11 through the mounting grooves.
A rod seat 12 and a nail shooting rod 13 are movably mounted inside the cylinder body 11, a mounting hole matched with the shape of the guide rod 16 is formed in the rod seat 1, the rod seat 1 is movably arranged on the guide rod 16 through the mounting hole, and the cylinder body 11 is divided into a front side cavity and a rear side cavity by the rod seat 12. The nail-ejecting shaft 13 has a mounting end mounted on the stem base 12 and a nail-ejecting end protruding out of the front side 111 for striking a nail. Specifically, the middle part of terminal surface extends before rod seat 12 has a erection column, is provided with the mounting groove on this erection column, penetrates the installation end of nail pole 13 and inserts in the mounting groove to through erection pin fixed connection. The driving end of the driving shaft 13 extends through the front side 111 into the firing channel of the muzzle 5 and is used to strike a nail.
Fig. 6 is a cross-sectional view of the force supply mechanism of the present invention.
As shown in fig. 6, the spring unit has at least two layers of spring parts 14 and a link piece 15.
The layer spring portions 14 are arranged along the moving direction of the stem base 12. Each layer of the layer spring part 14 has at least one force supplying spring 141, all the force supplying springs 141 in each layer of the layer spring part 14 are of the same kind, and the force supplying springs 141 in two adjacent layers of the layer spring part 14 are of different kinds.
The linkage piece 15 is disposed between two adjacent layer spring portions 14 and is used for linking the two layer spring portions 14.
When there is only one force supply spring 141 in each layer of the layer spring part 14, all the force supply springs 141 may be arranged in series, and the force supply springs 141 in adjacent layers are combined by the linkage pieces 15.
The first kind supply the power spring as first kind spring, the second kind supply the power spring as second kind spring, first kind spring and second kind spring are established two kinds of differences in the spring by equidistance spring, displacement spring 142, cover respectively and are constituted, also can be two kinds of differences in cylindrical spring, conical spring, well concave spring, the well convex spring and constitute.
The type of the spring in this embodiment is determined by the shape, the distance between the springs, the sleeving manner, and other factors, and any one of the factors is different. The length, diameter, and spring constant of the spring are not affected by the type of the spring, that is, the length, diameter, and spring constant of the spring are different, and the spring is regarded as the same type of spring.
The layer spring part is arranged close to the front side part and serves as a front layer spring part, the layer spring part is arranged close to the rear side part and serves as a rear layer spring part, the comprehensive elastic coefficients of the front layer spring part and the rear layer spring part are different, and the front layer spring part or the rear layer spring part is provided with at least two force supply springs which are arranged in parallel and symmetrically distributed around the central extension line of the nail shooting rod.
In addition, the spiral directions of the force supply springs of the layer spring parts of each layer are the same; the spiral directions of the force supply springs in the spring parts of two adjacent layers are opposite. Specifically, in the front layer spring portion, the spiral directions of the power supply springs arranged in parallel in each group are the same, and are opposite to those of the power supply springs in the rear layer spring portion.
The comprehensive elastic coefficient of the two layers of spring parts is different, so that the spring unit can cause the different acceleration caused by the different resilience forces of the two layers of spring parts in the process of rebounding after the nail is shot, the two layers of spring parts are buffered, the resilience acceleration is reduced, and the resilience force of the part is resisted. The impact force acting on the cylinder body is reduced, and the vibration reduction effect is realized. Meanwhile, the acceleration of the springback is reduced, so that the recoil force is also reduced, and the nailing is more labor-saving and comfortable.
As shown in fig. 6, two parallel force supply springs 141 are arranged in the front layer spring part, and the force supply springs are sleeved springs; a force supply spring 141 is arranged in the rear layer spring part, and the force supply spring 141 is an equidistant spring.
In this embodiment, two force supply springs are provided, two guide rods 16 are also provided, and are distributed in the inner cavity of the cylinder body 11 from top to bottom, and each force supply spring is sleeved on a corresponding guide rod 16 and symmetrically distributed around the central extension line of the nail ejection rod 13. Therefore, when the nail is shot, the resultant force of the force supply spring can be effectively concentrated on the nail shooting rod 13.
The sleeved springs each include at least one inner spring 1411 and an outer spring 1412 that internally houses the at least one inner spring 1411, and the outer spring 1412 is opposite to the inner spring 1411 adjacent to the outer spring 1412 in a spiral direction.
The inner spring 1411 and the outer spring 1412 have the size parameters that the outer spring diameter of the inner spring 1411 is 15.5mm, the length is 86mm, the pitch is 5.6mm, and the wire diameter is 1.5mm. The outer diameter of the outer spring 1412 is 20.6mm, the length is 86mm, the pitch is 9.7mm, and the diameter of the spring wire is 2.5mm.
As shown in fig. 6, the sleeved spring includes an inner spring 1411 and an outer spring 1422, which are coaxially disposed and sleeved on the same guide rod 16, and increase the overall elastic coefficient of the force-supplying spring in a limited space, so as to generate a larger power for driving the nail. Wherein the inner spring 1411 and the outer spring 1422 have opposite spiral directions, so that the two springs are not easily interfered or inclined during compression or extension.
Besides the advantages described above, because of the different directions of rotation, mass and rigidity of the spring, the vibration frequencies of the compression release after acting are inconsistent, so that the spring does not resonate, and the reaction force of the spring can mutually offset a part, thereby greatly reducing the vibration after acting, improving the vibration reduction effect and the nailing effect, and ensuring that the nailing is more labor-saving and comfortable.
In addition, as shown in fig. 6, the spring units are arranged in a triangular shape, so that the structure can be more stable.
In order to facilitate the installation with the rear spring portion, the linkage piece 15 has a plurality of installation portions 151 movably installed on the guide bar 16 and at least one guide bar portion 152. The installation department 151 is provided with two, seted up in it with the pilot hole of guide bar shape looks adaptation, and the cover is established on the guide bar 16, installation department 151 butt corresponds the confession power spring 141 one end of front spring portion. The guide rod 152 extends from the center of the rear side of the linkage plate 15, one end of the rear spring is mounted on the guide rod 152, and the other end of the rear spring is mounted on the rear side 112 of the cylinder 11. Specifically, the force supply spring of the rear layer spring part is the equidistant spring, and the spiral direction of the equidistant spring is opposite to that of the outer spring 1412 of the front layer spring part.
In addition, the comprehensive elastic coefficients of the spring parts of the two layers are set to be different. Because the comprehensive elastic coefficient of two-layer spring portion is different, can be so that spring unit at the in-process of kick-backing after penetrating the nail, through the different acceleration that the resilience force that two-layer spring portion is different leads to, cause two-layer spring portion to cushion each other, reduce the acceleration of kick-backing to offset partial resilience force. The impact force acting on the cylinder body is reduced, and the vibration reduction effect is realized. Meanwhile, the rebound acceleration is reduced, so that the vibration time of the spring unit is reduced, the working stability of the nail gun is ensured, and the labor intensity of a user is reduced.
If one force supply spring 141 is arranged in the front layer spring part and two parallel force supply springs 141 are arranged in the rear layer spring part, only the position of the linkage piece 15 needs to be reversed, so that one end of the front layer spring part is arranged on the guide rod part 152, and the other end of the front layer spring part is arranged on the rod seat 12.
In order to further improve the vibration damping effect, the rod seat comprises a front buffer piece 18 for buffering the vibration of the front layer spring part; the rear side portion includes a rear cushion member 19 for cushioning vibration of the rear spring portion.
In addition, a cushioning member 17 is provided on the inner wall of the front side portion 111 of the cylinder 11, and the outer edge of the cushioning member 17 abuts against the inner wall of the metal cylinder 11. After the nail is shot, the rod base 12 hits the buffer member 17, the buffer member 17 contracts, and the impact force is rapidly transmitted to the cylinder 11, thereby achieving rapid transfer and dissipation.
The cushioning member 17, the front cushion 18, and the rear cushion 19 are made of rubber or elastic plastic.
< modification 1-1>
When the nested spring contains a plurality of inner springs, the following nested form also exists:
fig. 10 is a schematic structural view of the coaxial arrangement of the spring is established to the cover, and fig. 11 is a schematic structural view of a plurality of inner springs arranged symmetrically in the spring is established to the cover.
The first package type: the sleeved spring comprises more than two inner springs with different diameters, the inner springs and the outer springs are coaxially arranged, and the spiral directions of the adjacent two inner springs are opposite.
As shown in fig. 6, the set spring includes two inner springs 1411 with different diameters and an outer spring 1412, which are sequentially sleeved on the same guide rod 16 according to the diameters, the inner spring 1411 with the smallest diameter and the outer spring 1412 have the same spiral direction, and the middle inner spring 1411 has the opposite spiral direction to the other two inner springs 1411.
The spring group of this modification has the following advantages:
1. on the premise of not increasing the cylinder body 11, the comprehensive elastic coefficient of the spring group can be further increased, and larger nail shooting power is provided.
2. Through different arrangement modes in the spiral direction, the concentric relation of the combined springs can be ensured, and the inner spring and the outer spring are prevented from being inclined or interfering with each other.
3. Because the rotation direction, the mass and the rigidity of the spring are different, the vibration frequencies of the springs are different after compression release does work, so that the springs cannot resonate, the reaction force of the springs can mutually offset a part of the reaction force, the vibration after the work is greatly reduced, the vibration damping effect and the nailing effect are improved, and the nailing is more labor-saving and comfortable.
4. Under the condition of obtaining a certain spring force, the spring group has the advantages of small volume, convenience in installation and the like.
The second package type: the sleeved spring comprises a plurality of inner springs with the same diameter, and the inner springs are symmetrically arranged inside the outer spring.
As shown in fig. 11, the set spring includes three inner springs 1411 having the same diameter and one outer spring 1412, and the number of the guide rods 16 is three. The inner springs 1411 are arranged in parallel, are respectively sleeved on the corresponding guide rods 16, and are symmetrically distributed around the central extension line of the nail shooting rod 13.
Wherein, the spiral direction of two inner springs 1411 is opposite to that of the outer spring 1412, and the spiral direction of the other inner spring 1411 is the same as that of the outer spring 1412.
Compared with the first sleeving form, the inner springs 1411 of the second sleeving form are respectively sleeved on the corresponding guide rods 16, and the positions are relatively fixed, so that the possibility of collision among the springs can be greatly reduced, and the interference among the springs is avoided.
Example two:
wherein, the force supply spring of at least one layer of spring part is a variable pitch spring.
Fig. 7 is a schematic structural view of a first variable pitch spring according to the present invention.
The pitch spring 142 is also called a pitch spring, that is, the pitch t is different from the pitch angle of the spring at different positions.
The pitch spring 142 has at least one pitch section 1421, and the pitch t of the pitch section 1421 gradually increases or decreases.
As shown in fig. 7, the pitch spring 142 has two pitch sections 1421, and both pitch sections 1421 are formed by twisting a same metal wire. The pitch t of one of the pitch sections 1421 is gradually decreased, and the pitch t of the other pitch section 1421 is gradually increased, so that the whole pitch spring 142 is in a state of small middle pitch and large two-end pitch.
In order to increase the nail ejecting power, the spring unit is also provided with a plurality of pitch-variable springs which are arranged in parallel, the specification parameters of the pitch-variable springs are the same, and the pitch-variable springs are symmetrically distributed around the central extension line of the nail ejecting rod. In order to better achieve the deformation of the springs, the pitch springs are fitted on the corresponding guide rods 16.
When the spring unit has only one pitch spring, the guide rod 16 is not needed, and the spring unit can be directly guided through the inner wall of the cylinder 11 to achieve the same effect.
Because the pitches of the variable-pitch spring are different, the generated vibration frequencies are different, different rebound forces are generated at different positions after the variable-pitch spring is compressed, released and does work, different accelerated speeds are formed, the internal parts of the variable-pitch spring can be mutually resisted, the internal part of the variable-pitch spring is internally reduced and rebounded accelerated speeds are reduced, and therefore the rebound force of the part of the variable-pitch spring is resisted. The impact force acting on the cylinder body is reduced, and the vibration reduction effect is realized.
Meanwhile, the rebound acceleration is reduced, so that the vibration time of the spring unit is reduced, the working stability of the nail gun is ensured, the labor intensity of a user is reduced, and the nailing effect is improved.
< modification 2-1>
Wherein, the displacement spring has the equidistant section of two at least different pitches and connects adjacent two the changeover portion of equidistant section, is same the pitch of equidistant section is all the same.
Fig. 8 is a schematic structural view of a second pitch-variable spring according to the present invention.
The pitch-variable spring is also provided with at least one equidistant section connected with the pitch-variable section, and the pitches of the equidistant sections are the same.
As shown in fig. 8, the pitch-variable spring 142 has a pitch-variable section 1421 and an equidistant section 1422, and the pitch-variable section 1421 and the equidistant section 1422 are formed by winding the same metal wire. The pitch t of one of the pitch sections 1421 gradually decreases, and the pitches t of the equidistant sections 1422 are all equal.
After the variable-pitch spring is compressed and released to do work, the generated vibration frequencies are different due to different pitches, so that the nailing effect is improved.
< modification 2-2>
Fig. 9 is a schematic structural view of a third pitch-variable spring according to the present invention.
As shown in fig. 9, the pitch spring has a first equal distance 1423, a second equal distance 1424, and a transition 1425 connecting the first equal distance 1423 and the second equal distance 1424, and the first equal distance 142, the second equal distance 1424, and the transition are formed by the same metal wire. The pitches of the first equidistant sections 1423 are all t1, the pitches of the second equidistant sections 1424 are t2, and the pitch t1 of the first equidistant sections 1423 is smaller than the pitch t2 of the second equidistant sections 1424.
When there are a plurality of first equal-distance sections 1423 and second equal-distance sections 1424, the first equal-distance sections 1423 and the second equal-distance sections 1424 are distributed at intervals and connected by the transition sections 1425.
After the variable-pitch spring is compressed and released to do work, the generated vibration frequencies are different due to different pitches, so that the nailing effect is improved.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. A combination force providing mechanism for installation in a nail gun for providing power to drive a nail, comprising:
a cylinder disposed within the nail gun, having a front side and a rear side;
the rod seat is movably arranged in the cylinder body and divides the cylinder body into a front side cavity and a rear side cavity;
the nail ejecting rod is fixedly combined with the rod seat and is provided with a nail ejecting end which extends out of the front side part and is used for ejecting nails; and
a spring unit freely installed between the rod seat and the rear side portion,
wherein the spring unit has:
at least two layers of spring parts arranged along the moving direction of the rod seat; and
the linkage piece is arranged between the two adjacent layers of spring parts and is used for linking the two layers of spring parts,
each layer of the layer spring part comprises at least one force supply spring,
all the force supply springs in the layer spring part of each layer are of the same kind;
the force supply springs in the spring parts of the two adjacent layers are different in type.
2. A combined force supply mechanism as claimed in claim 1, wherein:
the force supply spring of the first kind is a first kind of spring,
the second kind of said force supply spring acts as a second kind of spring,
the first spring and the second spring are respectively composed of two different kinds of equidistant springs, variable pitch springs and sleeved springs,
wherein, the sleeved spring is provided with at least one inner spring and an outer spring for sleeving the at least one inner spring inside.
3. A combined force supply mechanism as set forth in claim 2, wherein:
the first spring and the second spring are respectively composed of two different types of cylindrical springs, conical springs, concave springs and convex springs.
4. The combined force supply mechanism of claim 1, wherein:
wherein at least one of the layer spring parts comprises a plurality of the force supply springs arranged in parallel,
the force supply springs are symmetrically distributed around the central extension line of the nail shooting rod.
5. The combined force supply mechanism of claim 1, wherein:
wherein the layer spring portion disposed near the front side portion serves as a front layer spring portion,
the layer spring portion disposed near the rear side portion serves as a rear layer spring portion,
the comprehensive elastic coefficients of the front layer spring part and the rear layer spring part are different,
the front layer spring part or the rear layer spring part is provided with at least two force supply springs which are arranged in parallel and are symmetrically distributed around the central extension line of the nail shooting rod.
6. The combined force supply mechanism of claim 5, wherein:
the rod seat comprises a front buffer piece for buffering the vibration of the front layer spring part;
the rear side portion includes a rear cushion member for cushioning vibration of the rear spring portion.
7. The combined force supply mechanism of claim 1, wherein:
wherein, a plurality of guide rods are arranged in the cylinder body in a central symmetry way, two ends of each guide rod are respectively fixed with the front side part and the rear side part,
the rod seat is movably arranged on a plurality of guide rods;
at least one layer spring part comprises the force supply springs with the same number as the guide rods,
each force supply spring is respectively arranged on the corresponding guide rod.
8. The combined force supply mechanism of claim 7, wherein:
the linkage piece is provided with a plurality of mounting parts movably arranged on the guide rod and at least one guide rod part;
one end of one of the layer spring portions is mounted on the rod guide portion, and the other end thereof is mounted on the rear side portion of the cylinder body or the rod seat.
9. A drive assembly for installation in a nail gun for providing power for driving nails, comprising:
the combined type force supply mechanism is used for providing power for driving the nail; and
a driving unit for driving the combined type force supply mechanism to generate the power,
wherein the combined force providing mechanism is as claimed in any one of claims 1 to 8.
10. A nail gun, comprising:
a driving device for providing power for driving the nail,
wherein the drive device is the drive device of claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221501041.5U CN217620406U (en) | 2022-06-14 | 2022-06-14 | Combined force supply mechanism, driving device and nail gun |
| US18/208,354 US20230405781A1 (en) | 2022-06-14 | 2023-06-12 | Force supply mechanisms and nail guns having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221501041.5U CN217620406U (en) | 2022-06-14 | 2022-06-14 | Combined force supply mechanism, driving device and nail gun |
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| Publication Number | Publication Date |
|---|---|
| CN217620406U true CN217620406U (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221501041.5U Active CN217620406U (en) | 2022-06-14 | 2022-06-14 | Combined force supply mechanism, driving device and nail gun |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023241112A1 (en) * | 2022-06-14 | 2023-12-21 | 台州市大江实业有限公司 | Combined force supply mechanism, driving device, and nail gun |
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2022
- 2022-06-14 CN CN202221501041.5U patent/CN217620406U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023241112A1 (en) * | 2022-06-14 | 2023-12-21 | 台州市大江实业有限公司 | Combined force supply mechanism, driving device, and nail gun |
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