Impact powder hammer

Abstract

The utility model provides an impact powder hammer, relates to the technical field of coffee brewing, and solves the technical problem in the prior art that part of powder in a powder bowl is brought between a powder pressing piece and a base by impact airflow because the impact airflow is generated when the powder pressing piece moves in the powder bowl. The device comprises a powder pressing hammer and a balance sleeve, a groove is formed in the lower end face of the balance sleeve, the upper end of the powder pressing hammer is located in the groove, the powder pressing hammer is movably connected with the groove, and a first sealing ring is arranged between the outer side wall of the powder pressing hammer and the side wall of the groove; the lower end of the balance sleeve is provided with at least one exhaust groove, and all the exhaust grooves are distributed in the circumferential direction of the balance sleeve. The impact spring is located between the top cover of the telescopic sleeve and the impact sleeve, and the initial compression state of the impact spring can be changed by rotating the telescopic sleeve.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of brewing coffee, especially to a powder hammer. BACKGROUND

[0002] Brewing a cup of mellow coffee generally includes the following steps: firstly, coffee beans are ground into powder by a bean grinder, then the powder is poured into a powder bowl, and finally the powder is pressed flat and tight by a powder press matched with the powder bowl, and then the coffee is brewed by a coffee machine for people to drink.

[0003] At present, the powder press includes a flat-cylindrical powder pressing sheet, a base and an impact part, the center of the base of the impact part is connected with the powder pressing sheet, and the lower end surface of the base is a plane, in the operation of pressing the powder flat and tight, the powder pressing sheet is placed in the powder bowl, and the lower end surface of the base is in contact with the end surface of the powder bowl, the impact part is pressed downward by external force to make the powder pressing sheet move and realize the pressing of the powder.

[0004] The applicant finds that the prior art at least has the following technical problems:

[0005] In the prior art, when the powder pressing sheet moves in the powder bowl, impact airflow is generated, and part of the powder in the powder bowl is taken to the space between the powder pressing sheet and the base by the impact airflow. UTILITY MODEL CONTENT

[0006] The utility model discloses a powder hammer, which solves the technical problem that, in the prior art, when the powder pressing sheet moves in the powder bowl, impact airflow is generated, and part of the powder in the powder bowl is taken to the space between the powder pressing sheet and the base by the impact airflow. 。 The preferred technical solutions in the plurality of technical solutions provided by the utility model can produce the technical effects described below.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] The utility model discloses a powder hammer, which solves the technical problem that, in the prior art, when the powder pressing sheet moves in the powder bowl, impact airflow is generated, and part of the powder in the powder bowl is taken to the space between the powder pressing sheet and the base by the impact airflow.

[0009] The lower end of the balance sleeve is provided with a plurality of exhaust grooves, and the number of the exhaust grooves is at least one.

[0010] Optionally, the outer side wall of the powder pressing hammer is provided with an annular sealing groove, and the first sealing ring is installed on the annular sealing groove.

[0011] The upper end surface of the powder hammer is provided with a recessed groove, the recessed groove is an annular structure, the outer side wall of the powder hammer is in contact with the outer side wall of the recessed groove, and the inner side wall of the recessed groove is in contact with the side wall of the recessed groove.

[0012] Optionally, it also comprises a handle, a telescopic assembly, a fixed assembly and an impact assembly, the telescopic assembly is sleeved on the fixed assembly and is in sliding connection with the fixed assembly, the fixed assembly is sleeved on the impact assembly and is in sliding connection with the impact assembly, the upper end of the telescopic assembly is connected with the handle, and the upper end of the impact assembly is connected with the handle.

[0013] The fixed assembly comprises the balance sleeve, and the impact assembly comprises the powder hammer.

[0014] Optionally, the impact assembly comprises a first impact structure, a second impact structure and a pressure receiving mechanism, the second impact structure is sleeved on the first impact structure, the upper end of the first impact structure passes through the upper end of the telescopic assembly and is connected with the inside of the handle, the lower end of the first impact structure is in contact with the upper end of the pressure receiving mechanism, the upper end of the second impact structure is in contact with the inside of the inner wall of the upper end of the telescopic assembly, the upper half of the fixed assembly is sleeved on the second impact structure, and the lower half of the fixed assembly is sleeved on the pressure receiving mechanism.

[0015] Optionally, the first impact structure comprises a fixed rod and a first return spring, the upper end of the fixed rod is provided with a first threaded head, the first threaded head passes through the upper end of the telescopic assembly and is connected with a first threaded hole in the inside of the handle, the lower end of the fixed rod is in contact with the upper end of the first return spring, and the lower end of the first return spring is in contact with the upper end of the pressure receiving mechanism.

[0016] The lower end of the fixed rod is provided with a first limiting step extending outward.

[0017] Optionally, the second impact structure comprises an impact sleeve and an impact spring, the impact spring is sleeved on the fixed rod, the impact sleeve is located in the fixed assembly, the impact spring is located between the telescopic assembly and the impact sleeve, and a part of the first return spring and a part of the fixed rod are located in the impact sleeve.

[0018] The upper end of the impact sleeve is provided with a second limiting step extending inward, and the lower end of the impact sleeve is chamfered.

[0019] Optionally, the pressure receiving mechanism comprises a connecting rod, a second return spring and the powder hammer, a part of the connecting rod and the second return spring are located in the fixing assembly, the second return spring is sleeved on the connecting rod, the upper end of the connecting rod is in contact with the lower end of the first return spring, and the lower end of the connecting rod is threadedly connected with the powder hammer through the balance sleeve;

[0020] The upper end of the connecting rod is provided with a pressure receiving head, and the pressure receiving head is provided with an inwardly recessed accommodating groove;

[0021] The lower end of the connecting rod is provided with a second threaded head, the powder hammer is provided with a second threaded hole, the second threaded hole is in communication with the recessed groove, and the second threaded head is threadedly connected with the second threaded hole through the balance sleeve and the recessed groove.

[0022] Optionally, the fixing assembly comprises a fixing sleeve, the balance sleeve and an adjusting ball, the lower end of the fixing sleeve is threadedly connected with the balance sleeve, the balance sleeve is movably connected with the lower end of the telescopic assembly, the fixing sleeve is provided with a plurality of through holes, a part of the adjusting ball is located in the through hole, and the adjusting ball can move in the radial direction of the fixing sleeve;

[0023] When the other part of the adjusting ball is located inside the fixing sleeve, the adjusting ball can abut against the lower end of the second impact structure, and there is a gap between the second impact structure and the pressure receiving mechanism;

[0024] When the other part of the adjusting ball is located outside the fixing sleeve, the adjusting ball does not abut against the second impact structure, and the second impact structure can be in contact with the pressure receiving mechanism.

[0025] Optionally, the upper end of the fixing sleeve is provided with a third limiting step extending outward, the middle part of the fixing sleeve is provided with a fourth limiting step extending outward, the through hole is located above the fourth limiting step, and the lower end of the fixing sleeve is provided with a first external thread;

[0026] The upper end of the balance sleeve is provided with a connecting sleeve, the middle part of the balance sleeve is provided with a threaded groove and a through hole, a first external thread is threadedly connected with the threaded groove, the threaded groove and the through hole are in communication, the through hole is located below the threaded groove, and the outer region of the balance sleeve is provided with a weight-reducing opening.

[0027] Optionally, the telescopic assembly comprises a telescopic sleeve, a telescopic joint and a third return spring, the upper end of the telescopic sleeve is threadedly connected with the handle, the lower end region of the telescopic sleeve is sleeved on the upper end region of the telescopic joint, the telescopic joint is sleeved on the connecting sleeve, and the third return spring is located between the middle part of the telescopic joint and the upper end of the threaded groove.

[0028] The upper end of the telescopic sleeve is externally provided with a second external thread, the middle part of the telescopic sleeve is internally provided with a fifth limiting step extending inward, the upper end of the telescopic sleeve is externally provided with a seventh limiting step extending outward, and the top cover of the telescopic sleeve is provided with a movable hole.

[0029] The fourth threaded hole and the sealing hole are in communication, the second external thread is threadedly connected with the fourth threaded hole, and the second sealing ring is arranged between the upper end of the telescopic sleeve and the sealing hole.

[0030] The inner side of the upper end section of the telescopic section is provided with an annular groove recessed inward, the middle part of the telescopic section is internally provided with a sixth limiting step extending inward, and the other part of the adjusting ball on the fixing assembly can be located in the annular groove.

[0031] The impact powder hammer provided by the utility model, when the operation of flattening and compacting powder is carried out, the powder hammer extends into the powder bowl, the lower end of the balance sleeve is in contact with the bowl rim of the powder bowl, when the powder hammer moves in the powder bowl, due to the use of the balance sleeve, the part of the powder in the powder bowl can be limited to separate from the powder bowl, meanwhile, the first sealing ring is arranged between the powder hammer and the balance sleeve, thus the part of the powder in the powder bowl can also be limited to enter between the powder hammer and the balance sleeve, in addition, the exhaust groove is arranged on the lower end of the balance sleeve, the exhaust groove is aligned with the bowl rim, the impact airflow generated by the powder hammer in the powder bowl can be discharged from the exhaust groove, thus the technical problem that the impact airflow is generated when the powder sheet moves in the powder bowl in the prior art, thus the part of the powder in the powder bowl is brought between the powder sheet and the base by the impact airflow is solved. 。 BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained according to these drawings without the creative labor for the ordinary skilled in the art.

[0033] Figure 1 It is the explosion diagram of the impact powder hammer provided by the utility model embodiment;

[0034] Figure 2 It is the cross-sectional view of the impact powder hammer in the unused state provided by the utility model embodiment;

[0035] Figure 3is the cross section view of the adjusting stage of the impact powder hammer provided by the embodiment of the utility model;

[0036] Figure 4 is the cross section view of the first stage pressing of the impact powder hammer provided by the embodiment of the utility model;

[0037] Figure 5 is the cross section view of the second stage pressing of the impact powder hammer provided by the embodiment of the utility model;

[0038] Figure 6 is the structure schematic view of the handle of the impact powder hammer provided by the embodiment of the utility model;

[0039] Figure 7 is the cross section view of the handle of the impact powder hammer provided by the embodiment of the utility model;

[0040] Figure 8 is the structure schematic view of the telescopic sleeve of the impact powder hammer provided by the embodiment of the utility model;

[0041] Figure 9 is the cross section view of the telescopic sleeve of the impact powder hammer provided by the embodiment of the utility model;

[0042] Figure 10 is the structure schematic view of the telescopic joint of the impact powder hammer provided by the embodiment of the utility model;

[0043] Figure 11 is the cross section view of the telescopic joint of the impact powder hammer provided by the embodiment of the utility model;

[0044] Figure 12 is the structure schematic view of the fixed sleeve of the impact powder hammer provided by the embodiment of the utility model;

[0045] Figure 13 is the cross section view of the fixed sleeve of the impact powder hammer provided by the embodiment of the utility model;

[0046] Figure 14 is the structure schematic view of the balance sleeve of the impact powder hammer provided by the embodiment of the utility model;

[0047] Figure 15 is the cross section view of the balance sleeve of the impact powder hammer provided by the embodiment of the utility model;

[0048] Figure 16 is the structure schematic view of the fixed rod of the impact powder hammer provided by the embodiment of the utility model;

[0049] Figure 17 is the cross section view of the fixed rod of the impact powder hammer provided by the embodiment of the utility model;

[0050] Figure 18It is the structure schematic view of the impact sleeve of the impact powder hammer provided by the embodiment of the utility model;

[0051] Figure 19 It is the sectional view of the impact sleeve of the impact powder hammer provided by the embodiment of the utility model;

[0052] Figure 20 It is the structure schematic view of the connecting rod of the impact powder hammer provided by the embodiment of the utility model;

[0053] Figure 21 It is the sectional view of the connecting rod of the impact powder hammer provided by the embodiment of the utility model;

[0054] Figure 22 It is the structure schematic view of the pressure powder hammer of the impact powder hammer provided by the embodiment of the utility model;

[0055] Figure 23 It is the front view of the pressure powder hammer of the impact powder hammer provided by the embodiment of the utility model.

[0056] Fig. 1, handle; 11, first threaded hole; 12, fourth threaded hole; 13, sealing hole;

[0057] 2, telescopic assembly; 21, telescopic sleeve; 211, second external thread; 212, fifth limiting step; 213, seventh limiting step; 214, movable hole; 215, circumferential sealing groove; 22, telescopic joint; 221, annular groove; 222, sixth limiting step; 23, third return spring;

[0058] 3, fixed assembly; 31, fixed sleeve; 311, through hole; 312, third limiting step; 313, fourth limiting step; 314, first external thread; 32, balance sleeve; 321, groove; 322, exhaust groove; 323, connecting sleeve; 324, threaded groove; 325, through hole; 326, lightening port; 33, adjusting ball;

[0059] 4, impact assembly; 41, first impact structure; 411, fixed rod; 4111, first threaded head; 4112, first limiting step; 412, first return spring; 42, second impact structure; 421, impact sleeve; 4211, second limiting step; 422, impact spring; 43, pressure receiving mechanism; 431, connecting rod; 4311, pressure receiving head; 4312, accommodating groove; 4313, second threaded head; 432, second return spring; 433, pressure powder hammer; 4331, annular sealing groove; 4332, recessed groove; 4333, second threaded hole;

[0060] 5, first sealing ring;

[0061] 6, second sealing ring. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0063] In the description of the utility model, it is necessary to point out that, unless otherwise specified, the meaning of "multiple" is two or more than two; The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance.

[0064] In the description of the utility model, it is also necessary to point out that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0065] The utility model provides a kind of impact powder hammer, including powder hammer 433 and balance sleeve 32, wherein, the lower end surface of balance sleeve 32 is provided with recess 321, the upper end portion of powder hammer 433 is located in recess 321 and powder hammer 433 is movably connected with recess 321, and first sealing ring 5 is arranged between the lateral wall of powder hammer 433 and the lateral wall of recess 321;Balance sleeve 32 is provided with exhaust groove 322 on the lower end portion, the number of exhaust groove 322 is at least one, and all exhaust grooves 322 are distributed along the circumferential direction of balance sleeve 32.The utility model provides a kind of impact powder hammer, when carrying out the operation of flattening and compacting powder, powder hammer 433 is inserted into powder bowl, and the lower end portion of balance sleeve 32 is in contact with the bowl rim of powder bowl, when powder hammer 433 moves in powder bowl, due to the use of balance sleeve 32, so part of powder in powder bowl can be limited to separate from powder bowl, and first sealing ring 5 is further arranged between powder hammer 433 and balance sleeve 32, so that part of powder in powder bowl can also be limited to enter between powder hammer 433 and balance sleeve 32, in addition, balance sleeve 32 is provided with exhaust groove 322 on the lower end portion, and exhaust groove 322 is aligned with bowl rim, and the impact airflow generated by powder hammer 433 in powder bowl can be discharged from exhaust groove 322, to solve the technical problem that existing technology exists that impact airflow is generated when powder sheet moves back and forth in powder bowl, so part of powder in powder bowl is brought between powder sheet and base by impact airflow.

[0066] As optional implementation, annular sealing groove 4331 is arranged on the lateral wall of powder hammer 433, and annular sealing groove 4331 is close to the upper end of powder hammer 433, and first sealing ring 5 is installed on annular sealing groove 4331;

[0067] The upper end surface of powder hammer 433 is provided with recessed groove 4332, and recess 321 is annular structure, and recessed groove 4332 is to make the middle region of balance sleeve 32 enter into recessed groove 4332, the lateral wall of powder hammer 433 is in contact with the lateral wall of recess 321, and the inner lateral wall of recess 321 is in contact with the lateral wall of recessed groove 4332, to play the positioning role of powder hammer 433 and balance sleeve 32.

[0068] As optional implementation, further include handle 1, telescopic component 2, fixed component 3 and impact component 4, telescopic component 2 is sleeved on fixed component 3 and is slidably connected with fixed component 3, fixed component 3 is sleeved on impact component 4 and is slidably connected with impact component 4, the upper end of telescopic component 2 is connected with handle 1, and the upper end of impact component 4 is connected with handle 1;Fixed component 3 includes balance sleeve 32, and impact component 4 includes powder hammer 433.

[0069] When the pressing operation is performed, the lower end of the impact assembly 4 is aligned with the powder in the powder bowl, and then the handle 1 is pressed, the telescopic assembly 2 is gradually shortened under the pressure of the handle 1, and the impact assembly 4 is initially pressed against the powder under the pressure of the handle 1. When the telescopic assembly 2 is shortened to a certain position, the elastic impact force in the impact assembly 4 is released, so that the powder is secondarily impacted. The size of the elastic impact force is constant.

[0070] As an optional implementation, the impact assembly 4 includes a first impact structure 41, a second impact structure 42, and a pressure receiving mechanism 43. The second impact structure 42 is sleeved on the first impact structure 41. The upper end of the first impact structure 41 passes through the upper end of the telescopic assembly 2 and is connected with the inside of the handle 1. The lower end of the first impact structure 41 is in contact with the upper end of the pressure receiving mechanism 43. The upper end of the second impact structure 42 is in contact with the inner wall of the upper end of the telescopic assembly 2. The upper half of the fixing assembly 3 is sleeved on the second impact structure 42, and the lower half of the fixing assembly 3 is sleeved on the pressure receiving mechanism 43. When the handle 1 is pressed, the first impact structure 41 exerts pressure on the pressure receiving mechanism 43, so that the pressure receiving mechanism 43 initially presses the powder. Then the second impact structure 42 exerts pressure on the pressure receiving mechanism 43, so that the pressure receiving mechanism 43 secondarily impacts the powder.

[0071] As an optional implementation, the first impact structure 41 includes a fixed rod 411 and a first return spring 412. The upper end of the fixed rod 411 is provided with a first threaded head 4111 which passes through the upper end of the telescopic assembly 2 and is threadedly connected with a first threaded hole 11 in the inside of the handle 1. The lower end of the fixed rod 411 is in contact with the upper end of the first return spring 412. The lower end of the first return spring 412 is in contact with the upper end of the pressure receiving mechanism 43. The lower end of the fixed rod 411 is provided with a first limiting step 4112 which extends outward.

[0072] The second impact structure 42 includes an impact sleeve 421 and an impact spring 422. The impact spring 422 is sleeved on the fixed rod 411. The impact sleeve 421 is located in the fixing assembly 3. The impact spring 422 is located between the telescopic assembly 2 and the impact sleeve 421, i.e. between the top cover of the telescopic sleeve 21 and the impact sleeve 421. Part of the first return spring 412 and part of the fixed rod 411 are located in the impact sleeve 421. The upper end of the impact sleeve 421 is provided with a second limiting step 4211 which extends inward. The first limiting step 4112 is located in the impact sleeve 421. The diameter of the first limiting step 4112 is greater than that of the second limiting step 4211, so as to avoid the disengagement of the fixed rod 411 from the impact sleeve 421. The lower end of the impact sleeve 421 is chamfered, so as to exert a pushing force on the adjusting ball 33.

[0073] The pressure receiving mechanism 43 comprises a connecting rod 431, a second return spring 432 and a powder hammer 433, a part of the connecting rod 431 and the second return spring 432 are located in the fixed assembly 3, the second return spring 432 is sleeved on the connecting rod 431, the upper end of the connecting rod 431 is in contact with the lower end of the first return spring 412, the lower end of the connecting rod 431 is threadedly connected with the powder hammer 433 through the balance sleeve 32; the upper end of the connecting rod 431 is provided with a pressure head 4311, the upper end surface of the pressure head 4311 is used to be in contact with the lower end surface of the impact sleeve 421, the lower end of the pressure head 4311 is used to limit the second return spring 432, the pressure head 4311 is provided with an inwardly recessed accommodating groove 4312, the accommodating groove 4312 is used to accommodate the lower end of the first return spring 412; the lower end of the connecting rod 431 is provided with a second threaded head 4313, the powder hammer 433 is provided with a second threaded hole 4333, the second threaded hole 4333 is in communication with the recessed groove 4332, the second threaded hole 4333 is located below the recessed groove 4332, and the aperture of the recessed groove 4332 is greater than the aperture of the second threaded hole 4333, the second threaded head 4313 passes through the balance sleeve 32 and the recessed groove 4332 and is threadedly connected with the second threaded hole 4333.

[0074] As an optional implementation, the fixed assembly 3 comprises a fixed sleeve 31, a balance sleeve 32 and an adjusting ball 33, the lower end of the fixed sleeve 31 is threadedly connected with the balance sleeve 32, the balance sleeve 32 is movably connected with the lower end of the telescopic assembly 2, the fixed sleeve 31 is provided with a plurality of through holes 311, the plurality of through holes 311 are distributed along the circumferential direction of the fixed sleeve 31, and each through hole 311 is provided with an adjusting ball 33, a part of the adjusting ball 33 is located in the through hole 311 and the adjusting ball 33 can move along the radial direction of the fixed sleeve 31;

[0075] When the other part of the adjusting ball 33 is located inside the fixed sleeve 31, the adjusting ball 33 can abut against the lower end of the second impact structure 42, and there is a gap between the second impact structure 42 and the pressure receiving mechanism 43;

[0076] When the other part of the adjusting ball 33 is located outside the fixed sleeve 31, the adjusting ball 33 does not abut against the second impact structure 42, and the second impact structure 42 can be in contact with the pressure receiving mechanism 43.

[0077] As an optional implementation manner, the middle part of the fixing sleeve 31 is provided with a fourth limiting step 313 extending outward, the through hole 311 is located above the fourth limiting step 313, and the lower end of the fixing sleeve 31 is provided with a first external thread 314; the upper end of the balancing sleeve 32 is provided with a connecting sleeve 323, the middle part of the balancing sleeve 32 is provided with a threaded groove 324 and a through hole 325, the lower end of the fixing sleeve 31 penetrates through the connecting sleeve 323 and extends into the threaded groove 324, and there is a gap between the fixing sleeve 31 and the connecting sleeve 323 for placing the third reset spring 23, the first external thread 314 is threadedly connected with the threaded groove 324, the threaded groove 324 and the through hole 325 are connected and the through hole 325 is located below the threaded groove 324, the aperture of the threaded groove 324 is larger than the aperture of the through hole 325, the lower end of the connecting rod 431 penetrates through the through hole 325 and the connecting rod 431 is movably connected with the through hole 325, the second threaded head 4313 penetrates through the through hole 325 and is threadedly connected with the second threaded hole 4333 through the recessed groove 4332, and the outer region of the balancing sleeve 32 is provided with a plurality of weight-reducing openings 326.

[0078] As an optional implementation manner, the telescopic assembly 2 comprises a telescopic sleeve 21, a telescopic joint 22 and a third reset spring 23, the upper end of the telescopic sleeve 21 is threadedly connected with the handle 1, the lower end region of the telescopic sleeve 21 is sleeved on the upper end region of the telescopic joint 22, the telescopic joint 22 is sleeved on the connecting sleeve 323 and the third reset spring 23 is located between the middle part of the telescopic joint 22 and the upper end of the threaded groove 324, that is, the telescopic joint 22, the connecting sleeve 323 and the fixing sleeve 31 form a closed space, the third reset spring 23 is located in the closed space, and the lower end face of the connecting sleeve 323 is in contact with the upper end face of the balancing sleeve 32.

[0079] The outer side of the upper end of the telescopic sleeve 21 is provided with a second external thread 211, and the inner circumferential side wall of the handle 1 is provided with a fourth threaded hole, the second external thread 211 is threadedly connected with the fourth threaded hole.

[0080] The outer side of the upper end of the telescopic sleeve 21 is provided with a second external thread 211, the outer side of the upper end of the telescopic sleeve 21 is provided with a seventh limiting step 213 extending outward, the top cover of the telescopic sleeve 21 is provided with a movable hole 214, and the first threaded head 4111 penetrates through the movable hole 214 and is threadedly connected with the first threaded hole 11.

[0081] The fourth threaded hole 12 and a sealing hole 13 are arranged in the handle 1, the sealing hole 13 is located below the fourth threaded hole 12, the hole diameter of the sealing hole 13 is greater than that of the fourth threaded hole 12, the seventh limiting step 213 can extend into the sealing hole 13, the fourth threaded hole 12 and the sealing hole 13 are in communication, the upper end of the telescopic sleeve 21 can extend into the sealing hole 13 and the fourth threaded hole 12, the second external thread 211 is in threaded connection with the fourth threaded hole 12, the second sealing ring 6 is arranged between the outer side of the upper end of the telescopic sleeve 21 and the sealing hole 13, the outer side of the upper end of the telescopic sleeve 21 is provided with a circumferential sealing groove 215, and the second sealing ring 6 is mounted on the circumferential sealing groove 215; the distance between the top cover of the telescopic sleeve 21 and the upper end surface of the fourth threaded hole 12 can be adjusted by adjusting the connecting position of the second external thread 211 and the fourth threaded hole 12, so that the distance between the top cover of the telescopic sleeve 21 and the impact sleeve 421 is changed, and thus the initial compression state of the impact spring 422 is changed.

[0082] The upper end of the fixed sleeve 31 is provided with a third limiting step 312 extending outward, the inner side of the middle part of the telescopic sleeve 21 is provided with a fifth limiting step 212 extending inward, the lower end surface of the third limiting step 312 can abut against the upper end surface of the fifth limiting step 212, so as to avoid the telescopic sleeve 21 from being separated from the fixed sleeve 31, and the upper end of the telescopic joint 22 can abut against the lower end of the fifth limiting step 212, so as to limit the sliding distance between the telescopic joint 22 and the telescopic sleeve 21.

[0083] The inner side of the upper end section of the telescopic joint 22 is provided with an annular groove 221 recessed inward, another part of the adjusting ball 33 on the fixed assembly 3 can be located in the annular groove 221, the inner side of the middle part of the telescopic joint 22 is provided with a sixth limiting step 222 extending inward, the upper end of the sixth limiting step 222 can abut against the lower end of the fourth limiting step 313, so as to limit the movement distance between the telescopic joint 22 and the fixed sleeve 31, and the lower end of the sixth limiting step 222 is in contact with the upper end of the third return spring 23.

[0084] The operation method of the impact powder hammer of the utility model:

[0085] Referring to Figure 2 At this time, the impact powder hammer is in a non-use state, a part of the adjusting ball 33 is located in the through hole 311, and another part of the adjusting ball 33 is located in the interior of the fixed sleeve 31, at this time, the adjusting ball 33 abuts against the lower end of the impact sleeve 421, so that there is a gap between the impact sleeve 421 and the connecting rod 431;

[0086] Referring to Figure 3At this time, it is the adjustment stage of the impact powder hammer. By rotating the handle 1 relative to the telescopic sleeve 21, the position of the top cover of the telescopic sleeve 21 in the fourth threaded hole 12 is changed, thereby changing the distance between the top cover of the telescopic sleeve 21 and the impact sleeve 421, and the initial compression state of the impact spring 422 is changed.

[0087] When the handle 1 is pressed downward, the telescopic sleeve 21 moves downward, and the fixed rod 411 also moves downward, thereby compressing the first reset spring 412, so that the compression force of the first reset spring 412 presses the connecting rod 431 downward, thereby driving the powder pressing hammer 433 to press the powder for the first time, and the second reset spring 432 and the impact spring 422 are compressed.

[0088] During the descending process of the telescopic sleeve 21, referring to Figure 4 When the fifth limiting step 212 abuts against the telescopic joint 22, the telescopic joint 22 is driven to move downward, thereby the third reset spring 23 is compressed, until the annular groove 221 is at the same height as the through hole 311.

[0089] Referring to Figure 5 Then, under the compression force of the impact spring 422, a downward pressure is applied to the impact sleeve 421, so that the impact sleeve 421 applies pressure to the adjusting ball 33 and drives the adjusting ball 33 to move outward, thereby part of the adjusting ball 33 is located in the through hole 311, and the other part of the adjusting ball 33 is located in the annular groove 221, at this time, the telescopic joint 22 abuts against the fixed sleeve 31, thereby limiting the movement of the telescopic joint 22.

[0090] At the same time, the impact sleeve 421 is released, at this time, the compression force of the impact spring 422 is constant, and the pressure applied to the impact sleeve 421 is also constant, the impact sleeve 421 continues to move downward and impacts the connecting rod 431, thereby the powder pressing hammer 433 performs secondary impact on the powder.

[0091] Finally, when the external force on the handle 1 is removed, under the elastic force of the impact spring 422, the first reset spring 412, the second reset spring 432 and the third reset spring 23, the impact powder hammer returns to the initial state.

[0092] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A percussion hammer, characterized in that It comprises a powder pressing hammer (433) and a balance sleeve (32), wherein, The lower end surface of the balance sleeve (32) is provided with a groove (321), the upper end part of the powder pressing hammer (433) is located in the groove (321) and the powder pressing hammer (433) is movably connected with the groove (321), and a first sealing ring (5) is arranged between the outer side wall of the powder pressing hammer (433) and the side wall of the groove (321). The lower end part of the balance sleeve (32) is provided with exhaust grooves (322), the number of the exhaust grooves (322) is at least one, and all the exhaust grooves (322) are distributed along the circumferential direction of the balance sleeve (32).

2. The impactor of claim 1, wherein, The outer side wall of the powder pressing hammer (433) is provided with an annular sealing groove (4331), and the first sealing ring (5) is installed on the annular sealing groove (4331). The upper end surface of the powder pressing hammer (433) is provided with a recessed groove (4332), the groove (321) is an annular structure, the outer side wall of the powder pressing hammer (433) is in contact with the outer side wall of the groove (321), and the inner side wall of the groove (321) is in contact with the side wall of the recessed groove (4332).

3. The impactor of claim 2, wherein, It also comprises a handle (1), a telescopic assembly (2), a fixing assembly (3) and an impact assembly (4), the telescopic assembly (2) is sleeved on the fixing assembly (3) and is slidably connected with the fixing assembly (3), the fixing assembly (3) is sleeved on the impact assembly (4) and is slidably connected with the impact assembly (4), the upper end of the telescopic assembly (2) is connected with the handle (1), and the upper end of the impact assembly (4) is connected with the handle (1). The fixing assembly (3) comprises the balance sleeve (32), and the impact assembly (4) comprises the powder pressing hammer (433).

4. The impactor of claim 3, wherein, The impact assembly (4) comprises a first impact structure (41), a second impact structure (42) and a pressure receiving mechanism (43), the second impact structure (42) is sleeved on the first impact structure (41), the upper end of the first impact structure (41) penetrates through the upper end of the telescopic assembly (2) and is connected with the inside of the handle (1), the lower end of the first impact structure (41) is in contact with the upper end of the pressure receiving mechanism (43), the upper end of the second impact structure (42) is in contact with the inner wall of the upper end of the telescopic assembly (2), the upper half of the fixing assembly (3) is sleeved on the second impact structure (42), and the lower half of the fixing assembly (3) is sleeved on the pressure receiving mechanism (43).

5. The impactor of claim 4, wherein, The first impact structure (41) comprises a fixed rod (411) and a first reset spring (412), the upper end of the fixed rod (411) is provided with a first threaded head (4111), the first threaded head (4111) penetrates the upper end of the telescopic assembly (2) and is connected with a first threaded hole (11) in the interior of the handle (1), the lower end of the fixed rod (411) is in contact with the upper end of the first reset spring (412), and the lower end of the first reset spring (412) is in contact with the upper end of the pressure receiving mechanism (43). The lower end of the fixed rod (411) is provided with a first limiting step (4112) extending to the outside.

6. The impactor of claim 5, wherein, The second impact structure (42) comprises an impact sleeve (421) and an impact spring (422), the impact spring (422) is sleeved on the fixed rod (411), the impact sleeve (421) is located in the fixed assembly (3), the impact spring (422) is located between the telescopic assembly (2) and the impact sleeve (421), and parts of the first reset spring (412) and the fixed rod (411) are located in the impact sleeve (421). The upper end of the impact sleeve (421) is provided with a second limiting step (4211) extending to the inside, and the lower end of the impact sleeve (421) is chamfered.

7. The impactor of claim 6, wherein, The pressure receiving mechanism (43) comprises a connecting rod (431), a second reset spring (432) and the powder hammer (433), parts of the connecting rod (431) and the second reset spring (432) are located in the fixed assembly (3), the second reset spring (432) is sleeved on the connecting rod (431), the upper end of the connecting rod (431) is in contact with the lower end of the first reset spring (412), and the lower end of the connecting rod (431) is threadedly connected with the powder hammer (433) through the balance sleeve (32). The upper end of the connecting rod (431) is provided with a pressure head (4311), and the pressure head (4311) is provided with a containing groove (4312) recessed to the inside. The lower end of the connecting rod (431) is provided with a second threaded head (4313), the powder hammer (433) is provided with a second threaded hole (4333), the second threaded hole (4333) is in communication with the recessed groove (4332), and the second threaded head (4313) penetrates the balance sleeve (32) and the recessed groove (4332) and is threadedly connected with the second threaded hole (4333).

8. The impactor of claim 4, wherein, The fixed assembly (3) comprises a fixed sleeve (31), the balance sleeve (32) and an adjusting ball (33), the lower end of the fixed sleeve (31) is threadedly connected with the balance sleeve (32), the balance sleeve (32) is movably connected with the lower end of the telescopic assembly (2), the fixed sleeve (31) is provided with a plurality of through holes (311), part of the adjusting ball (33) is located in the through hole (311), and the adjusting ball (33) can move in the radial direction of the fixed sleeve (31). When the other part of the adjusting ball (33) is located inside the fixed sleeve (31), the adjusting ball (33) can abut against the lower end of the second impact structure (42) and there is a gap between the second impact structure (42) and the pressure receiving mechanism (43); When the other part of the adjusting ball (33) is located outside the fixed sleeve (31), the adjusting ball (33) does not abut against the second impact structure (42) and the second impact structure (42) can contact the pressure receiving mechanism (43).

9. The impactor of claim 8, wherein, The upper end of the fixed sleeve (31) is provided with a third limiting step (312) extending outward, the middle part of the fixed sleeve (31) is provided with a fourth limiting step (313) extending outward, the through hole (311) is located above the fourth limiting step (313), and the lower end of the fixed sleeve (31) is provided with a first external thread (314); The upper end of the balance sleeve (32) is provided with a connecting sleeve (323), the middle part of the balance sleeve (32) is provided with a threaded groove (324) and a through hole (325), the first external thread (314) is threadedly connected with the threaded groove (324), the threaded groove (324) and the through hole (325) are in communication and the through hole (325) is located below the threaded groove (324), and the outer region of the balance sleeve (32) is provided with a weight-reducing port (326).

10. The impactor of claim 9, wherein, The telescopic assembly (2) comprises a telescopic sleeve (21), a telescopic joint (22) and a third return spring (23), the upper end of the telescopic sleeve (21) is threadedly connected with the handle (1), the lower end region of the telescopic sleeve (21) is sleeved on the upper end region of the telescopic joint (22), the telescopic joint (22) is sleeved on the connecting sleeve (323), and the third return spring (23) is located between the middle part of the telescopic joint (22) and the upper end of the threaded groove (324); The outer side of the upper end of the telescopic sleeve (21) is provided with a second external thread (211), the inner side of the middle part of the telescopic sleeve (21) is provided with a fifth limiting step (212) extending inward, the outer side of the upper end of the telescopic sleeve (21) is provided with a seventh limiting step (213) extending outward, and the top cover of the telescopic sleeve (21) is provided with a movable hole (214); The handle (1) is provided with a fourth threaded hole (12) and a sealing hole (13) therein, the sealing hole (13) is located below the fourth threaded hole (12) and has a larger hole diameter than the fourth threaded hole (12), the fourth threaded hole (12) and the sealing hole (13) are in communication, the second external thread (211) is threadedly connected with the fourth threaded hole (12), and a second sealing ring (6) is arranged between the outer side of the upper end of the telescopic sleeve (21) and the sealing hole (13); The inner side of the upper end section of the telescopic joint (22) is provided with an inwardly recessed annular groove (221), and the middle inner side of the telescopic joint (22) is provided with a sixth limiting step (222) extending inwardly, and the other part of the adjusting ball (33) on the fixing assembly (3) can be located in the annular groove (221).

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