CN112548952A

CN112548952A - Force-limiting damping device

Info

Publication number: CN112548952A
Application number: CN201910911871.1A
Authority: CN
Inventors: 施瑞源
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2021-03-26

Abstract

The invention provides a force-limiting damping device which is provided with a body, a knocking piece, a damping elastic piece and a force-limiting group, wherein the body is provided with a combining part and a holding part, the knocking piece is movably combined with the body and can move relative to the combining part, the knocking piece is provided with a sleeving part, a knocking part and a locking part, the sleeving part is movably combined with a sleeving hole of the combining part, the knocking part is arranged at one end of the sleeving part and is positioned below the combining part, the locking part is combined with the sleeving part and is abutted against the combining part, the damping elastic piece is sleeved on the sleeving part and is abutted against the combining part and the knocking part, and the force-limiting group is arranged between the knocking piece and the body, so that the force-limiting damping device which has a reminding effect, improves the vibration feeling and can adjust the force application range according to needs is provided.

Description

Force-limiting damping device

Technical Field

The invention relates to a force-limiting damping device, in particular to a force-limiting damping device which has a reminding effect, improves vibration feeling and can adjust a force application range according to needs.

Background

At present, a hammer or an iron hammer used for fixing a nail body in a wood board, a cement wall or a metal plate is used for knocking in industry, and the hammer or the iron hammer often bounces due to reaction force during knocking, so that the time for a knocking surface of the hammer or the iron hammer to be in contact with the nail body is shortened, the nail body is easy to bend or deflect, the reaction force rebounded immediately can be converted into heat energy, noise and other form losses, the force application efficiency of a user is relatively reduced, namely, the applied force cannot be fully applied to the nail body, and the user needs to knock the nail body for many times, so that the nail body can be knocked into and fixed in the wood board or the wall, and the knocking times and the required time are relatively increased; in addition, when a user holds the handle of the hammer or the iron hammer, the user feels uncomfortable due to bouncing vibration generated during knocking; furthermore, the striking surface of the existing medical hammer or surgical hammer is mostly a rigid structure, so that when a dentist uses the existing medical hammer or surgical hammer in the artificial tooth implantation operation, the back shock generated by the reaction force can not only make the dentist feel uneasy to hold and uncomfortable, but also feel pain and even generate cerebral concussion for the patient due to the striking force.

In view of this, the existing industrial hammer, medical hammer or surgical hammer, etc. has a rigid striking surface that generates a reactive force that rebounds immediately when in use, which not only generates a considerable amount of noise and discomfort, but also affects the smoothness and operability of the operation, and cannot provide a force prompting effect, and cannot allow a user to strike within a corresponding force application range, and not only is easy to shake due to the reactive force, but also makes the user feel uneasy to hold and feel uncomfortable, and makes the object or object to be stressed have a vibration feeling or discomfort.

Disclosure of Invention

Therefore, the present inventors have made extensive studies and experiments to develop a hammer, a medical hammer, a surgical hammer, a golf club head, etc. for improving the conventional shortcomings of the prior art.

The main objective of the present invention is to provide a force-limiting damping device, which can avoid the generation of immediate Rebound reaction force during knocking, so that the reaction force can generate Delayed Rebound (Delayed Rebound) effect, and increase the contact time between the knocking surface and the knocked object, and can remind the user whether the force application magnitude exceeds the set force application range during knocking, so that the user can use the device with proper force for knocking, thereby effectively avoiding the user from feeling uneasy to hold and uncomfortable, and avoiding the vibration of the stressed object or object, further, the force application range of the force-limiting damping device can be adjusted according to the user's needs, and further, the force-limiting damping device having the reminding effect, improving the vibration feeling, and adjusting the force application range according to the needs is provided.

To achieve the above object, the present invention provides a force-limiting and shock-absorbing device, which comprises:

the body is a strip-shaped rod body, one end of the body is provided with a combining part, the combining part is provided with a sleeving hole, and one end of the body, far away from the combining part, is provided with a holding part;

the knocking piece is movably combined with the body and can move relative to the combining part, the knocking piece is provided with a sleeving part, a knocking part and a locking part, the sleeving part is movably combined with the sleeving hole of the combining part, the knocking part is arranged at one end of the sleeving part and is positioned below the combining part, and the locking part is combined with the sleeving part and is abutted against the combining part;

the shock absorption elastic piece is sleeved on the sleeving part and abuts against the combining part and the knocking part; and

the force limiting set is arranged between the knocking piece and the body and used for reminding a user whether knocking force exceeds a force application range set by the force limiting damping device or not during knocking, and the force limiting set is provided with a force limiting piece which is positioned between the sleeving part and the combining part, so that a force limiting reminding effect is provided, and a further damping effect can be provided.

Further, the force-limiting shock absorbing device as described above, wherein the force-limiting set is provided with a sleeve member and a positioning seat, the sleeve member is integrally formed at the bottom of the combining portion and provided with a through hole communicating with the sleeve hole, the positioning seat is integrally formed at a position where the sleeve portion is combined with the striking portion, the sleeve member is disposed above the positioning seat at an interval, the damping elastic member is sleeved between the sleeve member and the positioning seat and abuts against the combining portion and the striking portion, and the force-limiting member is sleeved on the sleeve portion and is located between the positioning seat and the sleeve member; in addition, a reminding element which can emit light or sound can be arranged on the force limiting piece, and when the sleeve piece is contacted with the force limiting piece, a user can be reminded of the magnitude of the force application through the light or the sound.

Still further, as described above, the force limiting and damping device is provided with at least one magnetic attraction member, and the at least one magnetic attraction member is disposed on the locking portion and magnetically attracted to the coupling portion, thereby providing a further force limiting and reminding effect.

Preferably, in the force-limiting and damping device, the force-limiting member is a spring, an annular rubber or a silica gel, an elastic metal block, an elastic block, or an elastic bushing, which is sleeved on the sleeving part and located between the sleeving part and the positioning seat.

Preferably, the force-limiting shock absorbing device is as described above, wherein the force-limiting member is slidably sleeved or fixed on the sleeved portion.

Preferably, in the force-limiting shock absorbing device as described above, the force-limiting member is fixed to the positioning seat and spaced from the engaging member or fixed to the engaging member and spaced from the positioning seat.

Preferably, the force-limiting damping device as described above, wherein the force-limiting member has a limiting groove, a receiving groove, a limiting bolt, a fixing member and a pushing unit, wherein the limiting groove is annularly recessed in the outer surface of the engaging portion and has at least one inner inclined wall, the receiving groove is radially formed on the engaging portion, the limiting bolt is movably disposed in the receiving groove and faces the engaging portion, the limiting bolt has an inclined surface capable of abutting against the inner inclined wall of the limiting groove, the fixing member is coupled to the outer end of the receiving groove, the pushing unit is disposed in the receiving groove and located between the fixing member and the limiting bolt, and the pushing unit pushes the limiting bolt to abut against the outer surface of the engaging portion through the engaging hole.

Preferably, the force-limiting and shock-absorbing device as described above, wherein the force-limiting member has a limiting groove, a receiving groove, a limiting bolt, a fixing member, a pushing unit and a pull rod, wherein the limit groove is annularly and concavely arranged on the outer surface of the sleeving part and is provided with at least one inner inclined wall, the accommodating groove is radially formed on the combining part, the limit bolt is movably arranged in the containing groove and faces the sleeving part, the limit bolt is provided with an inclined surface which can be attached to the inner inclined wall of the limit groove, the fixing piece is combined with the outer end of the containing groove, the pushing and supporting unit is arranged in the containing groove and is positioned between the fixing piece and the limiting bolt, the limiting bolt is pushed and supported against the outer surface of the sleeving part through the sleeving hole, one end of the pull rod is positioned outside the combining part, and the other end of the pull rod is fixedly combined with the limiting bolt through the fixing piece and the pushing unit.

Preferably, the force limiting and damping device as described above, wherein the joint portion has a limiting block disposed between the sleeve hole and the sleeve portion, the limiting block is fixedly disposed in the sleeve hole of the joint portion and has a through hole therethrough, the limiting block is sleeved outside the sleeve portion through the through hole, the force limiting member has a receiving groove, a limiting bolt, a fixing member and a pushing and abutting unit, the receiving groove is radially formed on the joint portion and is communicated with the sleeve hole, the limiting bolt is movably disposed in the receiving groove and abuts against an outer surface of the limiting block, the fixing member is combined with an outer end of the receiving groove, and the pushing and abutting unit is disposed in the receiving groove and between the fixing member and the limiting bolt.

Preferably, in the force-limiting and shock-absorbing device as described above, the limiting bolt has magnetism, and a magnetic member is disposed on an outer surface of the limiting block, and the magnetic member faces the limiting bolt and is magnetically attracted.

Preferably, the force-limiting damping device as described above, wherein the force-limiting member has a limiting groove, a receiving groove and a limiting bolt, the limiting groove radially penetrates the engaging portion, the receiving groove is radially formed on the engaging portion and is communicated with the engaging hole, the limiting bolt is located in the receiving groove, the limiting bolt has magnetism, the engaging portion has a magnetic member located in the limiting groove, and when the engaging portion moves relative to the engaging portion, the magnetic member corresponds to the limiting bolt.

Preferably, the force limiting and damping device is as described above, wherein the force limiting member is sleeved on the sleeving portion and located between the locking portion and the combining portion.

Preferably, the force-limiting and shock-absorbing device is as described above, wherein the striking portion of the striking element is a sphere, plane, axe, curved surface or pointed cone.

Preferably, in the force-limiting shock absorbing device as described above, the bottom of the limiting block extends out of the combining portion through the sleeving hole, so that the damping elastic member is partially sleeved outside the limiting block, and the force-limiting member is annularly provided with a limiting groove on an outer surface of the damping elastic member, so that the limiting bolt can abut against the limiting block through the limiting groove.

Preferably, the force limiting and damping device as described above, wherein a positioning seat is disposed at a position where the force limiting set is combined with the knocking portion, and an auxiliary elastic member is disposed on the force limiting and damping device and located between the elastic damping member and the positioning seat.

Preferably, the force-limiting shock absorbing device as described above, wherein the force-limiting set is provided with a sleeve member and a positioning seat, the sleeve member is a groove structure recessed into the joint portion, the positioning seat is disposed at a position where the sleeve portion is combined with the knocking portion, and extends into the sleeve member through a bottom of the joint portion, the damping elastic member is sleeved outside the positioning seat and abuts against between the joint portion and the knocking portion, and a space is provided between the sleeve member and the positioning seat.

Preferably, the force-limiting shock absorbing device as described above, wherein the force-limiting set is provided with a sleeve member and a positioning seat, the sleeve member is disposed at the bottom of the combining portion and located at one side of the sleeve portion, and the positioning seat is disposed on the striking portion and located at one side of the sleeve member and spaced from the sleeve member.

Preferably, the force-limiting shock absorbing device as described above, wherein the force-limiting set is provided with a sleeve member and a positioning seat, the sleeve member is disposed at the bottom of the combining portion and annularly disposed on the outer periphery of the sleeve portion, and the positioning seat is disposed on the striking portion and annularly disposed on the outer periphery of the sleeve portion, and spaced from the sleeve member.

Preferably, in the force-limiting and shock-absorbing device as described above, a through groove is transversely formed through the combining portion, the engaging portion extends into the through groove through a bottom of the combining portion, the locking portion is engaged with the engaging portion through the through groove, and the force-limiting member is disposed between the combining portion and the locking portion and located in the through groove.

Through the technical characteristics, the force-limiting damping device is simple in structure and convenient to manufacture, maintain and replace, only the force-limiting group is arranged between the combining part of the body and the knocking part, the knocking force of a user can be reminded by identifying whether the force-limiting group is compressed or not, the force-limiting effect is further provided, the counterforce generated when the knocking part is knocked can be used for generating the damping and shock-absorbing effect of Delayed Rebound (Delayed Rebound), the contact time between the knocking surface of the knocking part and the knocked object can be increased, the knocked object is not easy to bend, the energy loss and the noise can be reduced, the knocking times and the required time can be reduced relatively, the discomfort of the user can be relieved, the user can stably hold the body for knocking, and the structure is simplified, only the force-limiting group with different elastic strengths needs to be replaced or the locking part needs to be rotated The force limiting damping device can provide different elastic tension of the force limiting group, and further provides the force limiting damping device which has a reminding effect, improves vibration feeling and can adjust the force application range according to needs.

Drawings

Fig. 1 is a perspective view of a first preferred embodiment of the present invention.

Fig. 2 is an exploded perspective view of the first preferred embodiment of the present invention.

Fig. 3 is an enlarged partial sectional side view of the first preferred embodiment of the present invention.

Fig. 4 and 5 are side views illustrating the operation of tapping according to the first preferred embodiment of the present invention.

Fig. 6 is an enlarged partial sectional side view of a second preferred embodiment of the present invention.

Fig. 7 is an enlarged partial sectional side view of a third preferred embodiment of the present invention.

FIG. 8 is a side view of the tapping operation of the third preferred embodiment of the present invention.

Fig. 9 is a partially enlarged sectional side view of a fourth preferred embodiment of the present invention.

FIG. 10 is a side view of the fourth preferred embodiment of the present invention in operation for tapping.

Fig. 11 is an enlarged partial sectional side view of a fifth preferred embodiment of the present invention.

Fig. 12 is an enlarged partial sectional side view of a sixth preferred embodiment of the present invention.

Fig. 13 is a partially enlarged sectional side view of a seventh preferred embodiment of the present invention.

Fig. 14 is an enlarged partial sectional side view of the eighth preferred embodiment of the present invention.

Fig. 15 is an enlarged partial sectional side view of a ninth preferred embodiment of the present invention.

Fig. 16 is an enlarged partial sectional side view of the tenth preferred embodiment of the present invention.

Fig. 17 is an enlarged partial sectional side view of the eleventh preferred embodiment of the present invention.

Fig. 18 is an enlarged partial sectional side view of a twelfth preferred embodiment of the invention.

Detailed Description

So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings, wherein:

the invention relates to a force-limiting and shock-absorbing device, please refer to a first preferred embodiment shown in fig. 1 to 3, the force-limiting and shock-absorbing device is provided with a body 10, a knocking piece 20 and a force-limiting set 30, wherein:

the body 10 is a strip-shaped metal rod, a joint portion 11 is disposed at one end of the body 10, a set of holes 111 is axially disposed through the joint portion 11, a holding portion 12 is disposed at an end of the body 10 away from the joint portion 11, and further, an anti-slip structure is disposed on an outer surface of the holding portion 12, preferably, the anti-slip structure is a plurality of annular grooves 121 concavely disposed on an outer surface of the holding portion 12 at intervals, so that a user can firmly hold the holding portion 12 of the body 10.

The knocking member 20 is movably coupled to the body 10 and is movable relative to the coupling portion 11, the knocking member 20 is provided with a sleeve portion 21, a knocking portion 22 and a locking portion 23, the sleeve portion 21 is movably coupled to the coupling portion 11 of the body 10, preferably, the sleeve portion 21 is a rod passing through a sleeve hole 111 of the coupling portion 11, preferably, the cross section of the sleeve portion 21 has a shape corresponding to the cross section of the sleeve hole 111, wherein the sleeve portion 21 is rotatable relative to the coupling portion 11 when the sleeve portion 21 has a circular cross section, and the sleeve portion 21 is only movable relative to the coupling portion 11 and is not rotatable when the sleeve portion 21 has a polygonal cross section, and the outer surface of one end of the sleeve portion 21 is provided with a locking structure 211.

The knocking portion 22 is disposed at an end of the sheathing portion 21 away from the locking structure 211 and below the combining portion 11, further, the knocking portion 22 and the sheathing portion 21 are integrally formed, the knocking portion 22 may be made of hard materials such as metal, Polyethylene (PE) or plastic, or elastic materials such as rubber, silica gel or wood, in addition, the knocking portion 22 may also be made of metal with magnetism, so that the knocking portion 22 can absorb a nail when in use, the knocking portion 22 may also be a spherical body, a plane body, a axe sheet body, a curved surface or a taper-shaped structure, the knocking portion 22 is provided with a knocking surface 221 at the bottom, and further, the knocking surface 221 may be made of hard materials such as metal, Polyethylene (PE) or plastic, or elastic materials such as rubber, silica gel, wood or leather.

The locking portion 23 is combined with the engaging portion 21 and abuts against the engaging portion 11 of the body 10, so that the striking portion 22 is located below the engaging portion 11, wherein the relationship between the locking portion 23 and the engaging portion 21 is an adjustable structure, further, the locking portion 23 is disc-shaped and has a locking hole 231 extending therethrough, the locking hole 231 is linearly opposite to the engaging hole 111 of the engaging portion 11 and is engaged with the locking structure 211 of the engaging portion 21, as shown in fig. 3, the position where the locking portion 23 is engaged with the engaging portion 21 is adjustable, so as to change the distance between the striking portion 22 and the engaging portion 11. The force limiting set 30 is disposed on the sleeving portion 21 of the knocking member 20 and abuts against the combining portion 11 of the body 10 and the knocking portion 22 of the knocking member 20, the force limiting set 30 is used for reminding a user whether the knocking force exceeds the force application range set by the force limiting damping device when knocking, the force limiting set 30 is provided with a sleeving member 31, a positioning seat 32, a damping elastic member 33 and a force limiting member 34, the sleeving member 31 is integrally formed at the bottom of the combining portion 11 and provided with a through hole 311 communicated with the sleeving hole 111, wherein the outer diameter of the sleeving member 31 is smaller than the outer diameter of the combining portion 11, so that a step surface is formed at the combining position of the sleeving member 31 and the combining portion 11, the positioning seat 32 is integrally formed at the combining position of the sleeving portion 21 and the knocking portion 22, the outer diameter of the positioning seat 32 is smaller than the outer diameter of the knocking portion 22 and larger than the outer diameter of the sleeving portion 21, so that a step surface is respectively disposed between the positioning seat 32 and the sleeving portion 21 and the knocking portion 22, the engaging member 31 is disposed above the positioning seat 32 at an interval, the elastic damping member 33 is disposed between the engaging member 31 and the positioning seat 32 and abuts against the engaging portion 11 and the striking portion 22, and the force limiting member 34 is disposed on the engaging portion 21. Wherein when the locking portion 23 is adjusted to the engaging position with the engaging portion 21, the compression or expansion state of the elastic damping member 33 of the force limiting set 30 between the knocking portion 22 and the engaging portion 11 can be adjusted.

Further, the damping elastic member 33 is a spring having the same inner diameter (the upper and lower inner diameters are the same width) or different inner diameters (the upper and lower inner diameters are narrower), wherein when springs having the same inner diameter are used, each portion of the spring may be impacted, and when springs having different inner diameters are used, each portion of the spring may not be impacted.

Furthermore, the damping elastic member 33 is an elastic member and can be made of elastic material with fixed shape such as spring, rubber, silica gel, metal gasket, elastic metal block or elastic block, or can be formed by wrapping the spring in the rubber or silica gel; further, the magnitude of the compression force can be set by selecting the damper elastic members 33 having different elastic strengths and pre-compressing the damper elastic members 33 with the locking portions 23. When the striking force is smaller than the predetermined compression force of the elastic damping element 33 during use, the user will feel that the striking part 22 is immediately rebounded (Instant Rebound); when the striking force is greater than the predetermined compression force of the elastic shock absorbing member 33, the user feels the Delayed rebound (Delayed rebound) of the striking part 22. Therefore, the user can be reminded of the knocking force by identifying whether the damping elastic member 33 is compressed, thereby providing a force-limiting reminding effect.

Preferably, as shown in fig. 3, the force limiting set 30 is further provided with at least one magnetic member 35, and the at least one magnetic member 35 is disposed on the locking portion 23 and can magnetically attract the combining portion 11, thereby providing a further force limiting reminding effect.

The force limiting member 34 is an elastic member and can be made of elastic material with fixed shape such as spring, rubber, silica gel, metal gasket, elastic metal block or elastic block, and the spring can be covered in the rubber or silica gel to form, further, the force limiting member 34 can be slidably covered on the covering portion 21 or fixed on the covering portion 21; furthermore, the force limiting member 34 is fixed on the positioning seat 32 and spaced from the fitting member 31, or fixed on the fitting member 31 and spaced from the positioning seat 32; preferably, a warning element emitting light or sound is disposed on the force limiting member 34, so that when the sleeve member 31 contacts with the force limiting member 34, the user can be warned of the magnitude of the applied force by the light or sound.

With the above technical features, the first preferred embodiment of the force-limiting and shock-absorbing device of the present invention can be a medical hammer or an industrial hammer, which can be used to drive an artificial tooth root into a bone of a patient or drive a nail body into a wood board, as shown in fig. 1, a user holds and swings the holding portion 12 of the body 10 to drive the striking portion 22 of the striking member 20 to strike the artificial tooth root or the nail body, wherein as shown in fig. 4, a reaction force is generated when the striking portion 22 strikes the artificial tooth root or the nail body, when the reaction force is smaller than the magnetic attraction force between the magnetic member 35 and the combining portion 11 and the pre-compression force of the elastic damping member 33, the locking portion 23 will not be separated from the combining portion 11 with the magnetic member 21, and the elastic damping member 33 will not be compressed by the sleeve member 31, the striking surface 221 of the striking portion 22 will not move relative to the combining portion 11, the tap portion 22 receives a reaction force of Instant Rebound.

Further, when a user applies a larger striking force as shown in fig. 4, the reaction force is larger than the magnetic attraction force between the magnetic member 35 and the coupling portion 11, and when a pre-compression force of the elastic damping member 33 is applied, the striking member 20 moves upward relative to the coupling portion 11, so that the locking portion 23 is separated from the coupling portion 11 along with the engaging portion 21, the elastic damping member 33 compresses, and the striking energy is converted into the compression potential energy of the elastic damping member 33, wherein as shown in fig. 5, the body 10 continues to move (i.e. does not rebound temporarily) toward the nail body along with the swinging direction of the user. When the socket 31 compresses the force limiting member 34 along with the movement of the body 10, the compressed force limiting member 34 prevents the striking surface 221 of the striking part 22 from moving relative to the combining part 11, and the striking part 22 receives a reaction force of Instant Rebound (Instant Rebound).

Therefore, by arranging the force limiting set 30 between the combining part 11 and the knocking part 22, not only can a shock absorption and absorption effect of Delayed Rebound (Delayed Rebound) be generated for reaction force, but also the bounce situation of Instant Rebound (Instant Rebound) can not be generated in the process of knocking the nail body, so that the nail body is not easy to bend, the applied force can be continuously transmitted into the nail body, the energy loss and the noise are reduced, a user can fix the nail body in a wood board after knocking for a plurality of times, the knocking times and the required time are relatively reduced, and the operation efficiency is effectively improved; furthermore, the first preferred embodiment is a medical hammer, wherein when the medical hammer is used, the discomfort of the user or the patient can be relieved by the effect of the force limiting set 30 after absorbing shock and absorbing shock, so that the user can firmly hold the main body 10 for knocking, and the force limiting set 30 not only can provide the effect of absorbing shock and absorbing shock, but also can provide a force application reminding effect through the force limiting piece 34.

Further, the user can rotate the locking portion 23 to separate from the sheath portion 21 and install the force limiting sets 30 (including the damping elastic member 33 and the force limiting member 34) with different elastic strengths between the combining portion 11 and the striking portion 22 as shown in fig. 2, or rotate the locking portion 23 to change the distance between the combining portion 11 and the striking portion 22 to make the force limiting sets 30 in different compression states and make the force limiting sets 30 have different elastic tensions as shown in fig. 3.

Through the technical characteristics, when the force-limiting shock absorption device is used, a shock absorption and shock absorption effect which enables reaction force to generate Delayed Rebound (Delayed Rebound) can be provided through the force-limiting group 30 positioned between the combining part 11 and the knocking part 22, and meanwhile, the time for the contact between the knocking surface 221 of the knocking part 22 and a nail body can be increased, so that the nail body is not easy to bend, the energy loss and the noise can be reduced, the knocking times and the required time can be relatively reduced, the discomfort of a user or a patient can be relieved, the user can stably hold the body 10 for knocking, and different elastic tensions of the force-limiting group 30 can be provided only by replacing the force-limiting group 30 with different elastic strengths or rotating the locking part 23 due to the simplified structure; in summary, when the force limiting and damping device of the present invention is used, it can be determined whether the locking portion 23 is separated from the combining portion 11 or not as the first stage of force identification, and further can be determined whether the engaging member 31 of the combining portion 11 contacts the force limiting member 34 to generate resistance or not as the second stage of force identification, and finally can be determined whether the force limiting member 34 is compressed or rebounded as the third stage of force identification, so that the force limiting and damping device of the present invention can have a three-stage (triple) force limiting and reminding effect when in use, thereby providing a force limiting and damping device having a reminding effect, improving vibration feeling, and adjusting the force application range as required.

The second preferred embodiment of the force-limiting shock absorbing device of the present invention as shown in fig. 6 is different from the first preferred embodiment shown in fig. 1 to 3 in that: in the second preferred embodiment, the locking portion 23 can also be used without the magnetic member 35, and still provide the reminding effect and the function of improving the vibration feeling through the elastic damping member 33 and the force limiting member 34A of the force limiting set 30; further, the locking portion 23 can be configured with a member such as a gasket, etc., without limitation, and further, the force limiting member 34A can be slidably sleeved on the sleeved portion 21 or fixed on the sleeved portion 21; still further, the force limiting member 34A is fixed on the positioning seat 32 and spaced from the fitting member 31, or fixed on the fitting member 31 and spaced from the positioning seat 32.

Please refer to fig. 7, which shows a third preferred embodiment of the force-limiting shock absorbing device of the present invention, which is different from the first preferred embodiment shown in fig. 1 to 3 in that: the force limiting member 34B is provided with a limiting groove 341B, a receiving groove 342B, a limiting bolt 343B, a fixing member 344B and a pushing unit 345B, wherein the limiting groove 341B is annularly and concavely disposed on the outer surface of the set portion 21B and has at least one inner inclined wall, preferably, the limiting groove 341B is an annular groove, the receiving groove 342B is radially formed on the combining portion 11B, further, the receiving groove 342B is provided with an internal thread at an outer end away from the set hole 111B, the limiting bolt 343B is movably disposed in the receiving groove 342B and faces the set portion 21B, the limiting bolt 343B is provided with an inclined surface capable of abutting against the inner inclined wall of the limiting groove 341B, the fixing member 344B is combined with the outer end of the receiving groove 342B, thereby preventing the limiting bolt 343B from being separated from the combining portion 11B, the pushing unit 345B is disposed in the receiving groove 342B and located between the fixing member 345B and the limiting bolt 343B, the force-limiting member 343B is pushed to abut against the outer surface of the sleeve portion 21B through the sleeve hole 111B, and preferably, the pushing unit 345B is a spring.

When the third preferred embodiment of the force-limiting and shock-absorbing device of the present invention is used, please refer to fig. 8, when the knocking portion 22B knocks an object and compresses the shock-absorbing elastic member 33B, the combining portion 11B and the set portion 21B will move relatively, so that the limiting groove 341B moves upward relative to the combining portion 11B, wherein when the limiting groove 341B is communicated with the accommodating groove 342B through the set hole 111B, the limiting bolt 343B will be pushed by the pushing unit 345B and clamped with the limiting groove 341B, so that the inner inclined wall abuts against the inclined surface, thereby limiting the position of the knocking member 20B relative to the combining portion 11B, and thus reminding a user that the force used by the user exceeds the force application range set by the force-limiting and shock-absorbing device, thereby providing a force-limiting reminding effect for the user; further, when the force applied by the user exceeds the force application range set by the force-limiting damping device, and the limiting bolt 343B is engaged with the engaging portion 21B, and the user pushes the engaging portion 21B to move downward relative to the engaging portion 11B, the limiting bolt 343B is pushed by the engaging portion 21B and then moves toward the fixing member 344B to retract into the accommodating groove 342B, so that the limiting bolt 343B is separated from the limiting groove 341B, and is pushed by the damping elastic member 33B to return to the initial position.

Please refer to fig. 9 for a fourth preferred embodiment of the force-limiting shock absorbing device of the present invention, which is different from the third preferred embodiment of fig. 7 and 8 in that: the force limiting member 34C is provided with a pull rod 346C, one end of the pull rod 346C is located outside the combining portion 11C, and the other end is fixedly combined with the limiting bolt 343C through the fixing member 344C and the pushing unit 345C.

When the fourth preferred embodiment of the force-limiting shock absorbing device of the present invention is used, please refer to fig. 9 and 10, wherein when the knocking portion 22C knocks the object to drive the engaging portion 21C to move relative to the engaging portion 11C, the limiting groove 341C moves upward relative to the engaging portion 11C, wherein when the limiting groove 341C is communicated with the accommodating groove 342C through the set of holes 111C, the position-limiting pin 343C is pushed by the pushing unit 345C to engage with the position-limiting groove 341C, so that the inner inclined wall abuts against the inclined surface, thereby limiting the position of the knocking member 20C relative to the engaging portion 11C, and the pull rod 346C will move toward the engaging portion 21C along with the movement of the limiting bolt 343C, thereby reminding the user that the used force exceeds the force application range set by the force limiting damping device and providing the effect of force limiting reminding for the user; further, when the force applied by the user exceeds the force application range set by the force-limiting and damping device, and the limiting bolt 343C is engaged with the set portion 21C, wherein the moving direction of the set portion 21C returning to the initial position does not correspond to the inclined direction of the limiting bolt 343C, the user must pull the pull rod 346C to retract the limiting bolt 343C into the accommodating groove 342C along with the movement of the pull rod 346C toward the fixing member 344C, so that the limiting bolt 343C is separated from the limiting groove 341C, and further the set portion 21C can be pushed to move downward relative to the combining portion 11C, and return to the initial position by the pushing of the damping elastic member 33C.

Please refer to fig. 11, which shows a fifth preferred embodiment of the force-limiting shock absorbing device of the present invention, which is different from the third preferred embodiment shown in fig. 7 and 8 in that: the combining portion 11D is provided with a limiting block 13D between the sleeve hole 111D and the sleeve portion 21D, preferably, the limiting block 13D is a bushing, the limiting block 13D is disposed in the sleeve hole 111D of the combining portion 11D and is provided with a through hole 131D in a penetrating manner, the limiting block 13D is sleeved outside the sleeve portion 21D through the through hole 131D, wherein a gap is formed between the through hole 131D and the sleeve portion 21D, and one end of the damping elastic member 33D abuts against the limiting block 13D, further, the force limiting member 34D is not provided with a limiting groove, and one end of the limiting bolt 343D facing the limiting block 13D abuts against the outer surface of the limiting block 13D; when the knocking portion 22D knocks the object and compresses the elastic damping member 33D, the limiting block 13D abuts against the limiting bolt 343D to have a friction force, so that when the knocking portion 22D moves relative to the combining portion 11D, the friction force between the limiting block 13D and the limiting bolt 343D provides a force limiting effect for the elastic damping member 33D.

Please refer to fig. 12 for a sixth preferred embodiment of the force-limiting shock absorbing device of the present invention, which is different from the fifth preferred embodiment of fig. 11 in that: the force limiting member 34E is not provided with a fixing member and a pushing unit, the limiting bolt 343E is located in the accommodating groove 342E, a magnetic member 14E is disposed on the outer surface of the limiting block 13E, and the magnetic member 14E faces and magnetically attracts the limiting bolt 343E; when the striking part 22E strikes an object and compresses the elastic damping member 33E, the magnetic attraction force generated by the attraction between the magnetic member 14E and the limiting bolt 343E causes the striking part 22E to move relative to the connecting part 11E, and the magnetic attraction force between the limiting block 13E and the limiting bolt 343E provides a force-limiting effect to the elastic damping member 33E.

Please refer to fig. 13, which shows a seventh preferred embodiment of the force-limiting shock absorbing device of the present invention, which is different from the sixth preferred embodiment of fig. 12 in that: the combination portion 11F is not provided with the limiting block, the limiting groove 341F of the force limiting member 34F radially penetrates through the sheathing portion 21F, the magnetic member 14F is located in the limiting groove 341F, the limiting bolt 343F is located in the accommodating groove 342F, when the sheathing portion 21F moves relative to the combination portion 11F, the magnetic member 14F corresponds to the limiting bolt 343F, wherein the limiting bolt 343F is a magnetic block; when the knocking portion 22F knocks the object and compresses the elastic damping member 33F, the magnetic member 14F will face the limiting pin 343F to generate a magnetic attraction force, and the magnetic attraction force generated between the limiting pin 343F and the magnetic member 14F can provide a force-limiting effect to the elastic damping member 33F as the engaging portion 21F moves relative to the engaging portion 11F.

Please refer to fig. 14, which shows an eighth preferred embodiment of the force-limiting shock absorbing device of the present invention, which is different from the second preferred embodiment shown in fig. 6 in that: the force limiting member 34G is an elastic member made of elastic material having a fixed shape, such as a spring, rubber, silica gel, metal gasket, elastic metal block or elastic block, or made of elastic material having a fixed shape, and the spring is wrapped in the rubber or silica gel, and is sleeved on the sleeved portion 21G and located between the locking portion 23G and the combining portion 11G, but not located between the sleeved member 31G and the positioning seat 32G, when the knocking portion 22G knocks an object, after the damping elastic member 33G is compressed, the locking portion 23G will be separated from the force limiting member 34G along with the sleeved portion 21G, and the compressed damping elastic member 33G will provide a restoring force to the knocking portion 22G, so as to drive the locking portion 23G located on the sleeved portion 21G to move toward the combining portion 11G, and the force limiting member 34G located between the locking portion 23G and the combining portion 11G, the condition that the locking part 23G collides with the combining part 11G in the knocking process can be avoided, thereby reducing the damage phenomenon caused by collision; still further, when the sleeve member 31G collides with the positioning seat 32G during the application of force, the user will feel the reaction force of the instant rebound, thereby prompting the limitation of the striking force. When the user needs to knock with great force, the sleeve piece 31G collides with the positioning seat 32G to transmit the knocking effect with unlimited force. Before the sleeve part 31G and the positioning seat 32G collide with each other, the shock absorption elastic part 33G positioned between the knocking part 22G and the combining part 11G can avoid the reaction force of instant rebound at the beginning of the knocking process and reduce the occurrence of the bounce situation of the iron nails; wherein, different force limiting effects can be provided by adjusting the distance between the sleeve part 31G and the positioning seat 32G and the elastic strength of the elastic damping part 33G, and the damping device can also be used without using the force limiting part 34G.

Please refer to fig. 15, which shows a ninth preferred embodiment of the force-limiting shock absorbing device of the present invention, which is different from the fifth preferred embodiment of fig. 11 in that: the bottom of the limiting block 13H extends out of the combining portion 11H through the sleeving hole 111H, so that the damping elastic member 33H is partially sleeved outside the limiting block 13H, and the force limiting member 34H is annularly provided with the limiting groove 341H on the outer surface of the limiting block 13H, so that the limiting bolt 343H can abut against the limiting block 13H through the limiting groove 341H, further, the force limiting damping device is provided with an auxiliary elastic member 36H on the sleeving portion 21H, and the auxiliary elastic member 36H is located between the damping elastic member 33H and the positioning seat 32H, thereby further providing an auxiliary damping effect.

Please refer to the tenth preferred embodiment of the force-limiting shock absorbing device of the present invention as shown in fig. 16, which is different from the eighth preferred embodiment shown in fig. 14 in that: the sleeve member 31I is a groove structure recessed into the joint portion 11I, the positioning seat 32I extends into the sleeve member 31I through the bottom of the joint portion 11I, the elastic damping member 33I is sleeved outside the positioning seat 32I and abuts against the joint portion 11I and the knocking portion 22I, and a space is formed between the sleeve member 31I and the positioning seat 32I; when the knocking portion 22I knocks an object, after the elastic damping member 33I is compressed, the elastic damping member 33I provides a restoring force for the knocking portion 22I, so as to drive the locking portion 23I on the set portion 21I to move toward the combining portion 11I, and the force limiting member 34I between the locking portion 23I and the combining portion 11I can avoid the collision between the locking portion 23I and the combining portion 11I during knocking, thereby reducing the damage caused by collision; still further, when the sleeve member 31I collides with the positioning seat 32I during the application of force, the user will feel the reaction force of the instant rebound, thereby prompting the limitation of the striking force. When a user needs to knock with great force, the sleeve piece 31I collides with the positioning seat 32I to transmit the knocking effect with unlimited force. Before the sleeve piece 31I and the positioning seat 32I collide with each other, the shock absorption elastic piece 33I positioned between the knocking part 22I and the combining part 11I can avoid the reaction force which rebounds immediately at the beginning of the knocking process, and reduce the occurrence of the bounce situation of the iron nails; wherein, different force limiting effects can be provided by adjusting the distance between the sleeve part 31I and the positioning seat 32I and the elastic strength of the elastic damping part 33I, and the damping device can also be used without using the force limiting part 34I.

Please refer to fig. 17, which shows an eleventh preferred embodiment of the force-limiting shock absorbing device of the present invention, which is different from the first preferred embodiment shown in fig. 3 in that: the engaging member 31J is integrally or separately disposed at the bottom of the engaging portion 11J and located at one side of the engaging portion 21J or annularly disposed on the outer periphery of the engaging portion 21J, and the positioning seat 32J is integrally or separately disposed on the striking portion 22J and located at one side of the engaging portion 21J or annularly disposed on the outer periphery of the engaging portion 21J, and is spaced from the engaging member 31J.

Please refer to fig. 18, which shows a twelfth preferred embodiment of the force-limiting shock absorbing device of the present invention, which is different from the first preferred embodiment shown in fig. 3 in that: the combining portion 11K transversely penetrates a through groove 112K, the sheathing portion 21K extends into the through groove 112K through the bottom of the combining portion 11K, the locking portion 23K is combined with the sheathing portion 21K through the through groove 112K, and the force limiting member 34K is arranged between the combining portion 11K and the locking portion 23K and located in the through groove 112K. When the knocking force is too large, the locking portion 23K collides with the top of the through groove 112K, thereby alerting the user to the upper limit of the knocking force and providing an unlimited force knocking effect.

Further, the damping

elastic members

33, 33B, 33C, 33D, 33E, 33F, 33G, 33H, 33I and the

force limiting members

34, 34A, 34G, 34I, 34K in the above preferred embodiment may be made of elastic materials with fixed shapes, such as springs, rubber, silicone, metal gaskets, elastic metal blocks or elastic blocks, or the springs may be wrapped in rubber or silicone, or both may be used in combination of the above elastic materials, and the invention is not limited to the matching manner.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that the invention is not limited to the disclosed embodiment, but is intended to cover various modifications, equivalents and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims

1. A force limiting and damping device is characterized by being provided with:

2. The force-limiting shock absorbing device of claim 1, wherein the force-limiting set comprises a sleeve member and a positioning seat, the sleeve member is integrally formed at the bottom of the connecting portion and has a through hole communicating with the sleeve hole, the positioning seat is integrally formed at a location where the sleeve portion is connected to the striking portion, the sleeve member is spaced above the positioning seat, the shock absorbing elastic member is sleeved between the sleeve member and the positioning seat and abuts against the connecting portion and the striking portion, and the force-limiting member is sleeved on the sleeve member and is located between the positioning seat and the sleeve member.

3. The force-limiting and shock-absorbing device as claimed in claim 2, wherein a light or sound-emitting alarm device is disposed on the force-limiting member, so that when the engaging member is engaged with the force-limiting member, the user can be warned of the magnitude of the force applied by the engaging member.

4. The force-limiting shock absorbing device as claimed in claim 3, wherein the force-limiting set is provided with at least one magnetic attraction member, and the at least one magnetic attraction member is disposed on the locking portion and magnetically attracted to the engaging portion, thereby providing a further force-limiting reminding effect.

5. The force-limiting and shock-absorbing device as claimed in claim 3 or 4, wherein the force-limiting member is a spring, an annular rubber or a silica gel, a metal block with elasticity or a block or a bushing with elasticity, which is sleeved on the sleeved portion and located between the sleeved member and the positioning seat.

6. The force-limiting shock absorbing device of claim 5, wherein the force-limiting member is slidably received on the receiving portion.

7. The force-limiting shock absorbing device of claim 6, wherein the force-limiting member is fixed to the positioning seat and spaced apart from the engaging member.

8. The force-limiting shock absorbing device of claim 6, wherein the force-limiting member is fixed to the engaging member and spaced apart from the positioning seat.

9. The force-limiting shock absorbing device of claim 5, wherein the force-limiting member is fixedly disposed on the sleeve portion.

10. The force-limiting shock absorbing device of any one of claims 1 to 4, wherein the force-limiting member is slidably fitted over the fitting portion.

11. The force-limiting shock absorbing device of claim 10, wherein the force-limiting member is fixed to the positioning seat and spaced apart from the engaging member.

12. The force-limiting shock absorbing device of claim 10, wherein the force-limiting member is fixed to the engaging member and spaced apart from the positioning seat.

13. The force-limiting shock absorbing device of any one of claims 1 to 4, wherein the force-limiting member is fixedly disposed on the sleeve portion.

14. The force-limiting shock absorbing device of claim 1, wherein the force-limiting member has a limiting groove, a receiving groove, a limiting bolt, a fixing member and a pushing unit, wherein the limiting groove is annularly recessed in the outer surface of the engaging portion and has at least one inner inclined wall, the receiving groove is radially formed on the engaging portion, the limiting bolt is movably disposed in the receiving groove and faces the engaging portion, the limiting bolt has an inclined surface capable of abutting against the inner inclined wall of the limiting groove, the fixing member is coupled to the outer end of the receiving groove, the pushing unit is disposed in the receiving groove and between the fixing member and the limiting bolt, and the pushing unit pushes the limiting bolt to abut against the outer surface of the engaging portion through the engaging hole.

15. The force-limiting shock absorbing device of claim 1, wherein the force-limiting member has a limiting groove, a receiving groove, a limiting pin, a fixing member, a pushing unit and a pull rod, wherein the limit groove is annularly and concavely arranged on the outer surface of the sleeving part and is provided with at least one inner inclined wall, the accommodating groove is radially formed on the combining part, the limit bolt is movably arranged in the containing groove and faces the sleeving part, the limit bolt is provided with an inclined surface which can be attached to the inner inclined wall of the limit groove, the fixing piece is combined with the outer end of the containing groove, the pushing and supporting unit is arranged in the containing groove and is positioned between the fixing piece and the limiting bolt, the limiting bolt is pushed and supported against the outer surface of the sleeving part through the sleeving hole, one end of the pull rod is positioned outside the combining part, and the other end of the pull rod is fixedly combined with the limiting bolt through the fixing piece and the pushing unit.

16. The force-limiting shock absorbing device of claim 1, wherein the coupling portion has a limiting block disposed between the engaging hole and the engaging portion, the limiting block is disposed in the engaging hole of the coupling portion and has a through hole, the limiting block is disposed outside the engaging portion through the through hole, the force-limiting member has a receiving groove, a limiting bolt, a fixing member and a pushing unit, the receiving groove is radially formed on the coupling portion and is communicated with the engaging hole, the limiting bolt is movably disposed in the receiving groove and abuts against an outer surface of the limiting block, the fixing member is coupled to an outer end of the receiving groove, and the pushing unit is disposed in the receiving groove and is disposed between the fixing member and the limiting bolt.

17. The force-limiting shock absorbing device of claim 16, wherein the limiting bolt is magnetic, and the outer surface of the limiting block is provided with a magnetic member, the magnetic member facing the limiting bolt and magnetically attracted thereto.

18. The force-limiting shock absorbing device of claim 1, wherein the force-limiting member has a limiting groove, a receiving groove and a limiting pin, the limiting groove radially penetrates the engaging portion, the receiving groove is radially formed on the engaging portion, the limiting pin is located in the receiving groove, the limiting pin has magnetism, the engaging portion has a magnetic member located in the limiting groove, and the magnetic member corresponds to the limiting pin when the engaging portion moves relative to the engaging portion.

19. The force-limiting shock absorbing device of claim 1, wherein the force-limiting member is disposed on the engaging portion between the locking portion and the engaging portion.

20. The force-limiting shock absorbing device of claim 1, wherein the striking portion of the striking member is a sphere, flat, axe, curved, or pointed cone.

21. The force-limiting and shock-absorbing device of claim 15, wherein the bottom of the limiting block extends out of the engaging portion through the engaging hole, so that the shock-absorbing elastic member is partially engaged with the outside of the limiting block, and the force-limiting member is annularly provided with a limiting groove on the outer surface of the shock-absorbing elastic member, so that the limiting bolt can abut against the limiting block through the limiting groove.

22. The force-limiting shock absorbing device of claim 21, wherein a positioning seat is disposed at a location where the engaging portion is engaged with the striking portion, and an auxiliary elastic member is disposed on the engaging portion and between the damping elastic member and the positioning seat.

23. The force-limiting shock absorbing device of claim 19 wherein the force-limiting set has a sleeve member and a positioning seat, the sleeve member has a groove structure recessed into the engaging portion, the positioning seat is disposed at a position where the sleeve member is engaged with the striking portion and extends into the sleeve member through a bottom of the engaging portion, the shock absorbing elastic member is sleeved outside the positioning seat and abuts against the engaging portion and the striking portion, and a space is provided between the sleeve member and the positioning seat.

24. The force-limiting shock absorbing device of claim 1, wherein the force-limiting set comprises a engaging member and a positioning seat, the engaging member is disposed at the bottom of the engaging portion and at one side of the engaging portion, and the positioning seat is disposed on the striking portion and at one side of the engaging portion and spaced apart from the engaging member.

25. The force-limiting shock absorbing device of claim 1, wherein the force-limiting set comprises a engaging member and a positioning seat, the engaging member is disposed at the bottom of the connecting portion and annularly disposed on the outer periphery of the engaging portion, the positioning seat is disposed on the striking portion and annularly disposed on the outer periphery of the engaging portion, and the positioning seat is spaced apart from the engaging member.

26. The force-limiting shock absorbing device of claim 1, wherein the engaging portion has a through-slot extending therethrough, the engaging portion extends into the through-slot through a bottom of the engaging portion, and the locking portion is engaged with the engaging portion through the through-slot, the force-limiting member is disposed between the engaging portion and the locking portion and within the through-slot.