Combined hammer for constructional engineering

Abstract

The utility model belongs to the technical field of constructional engineering, and particularly relates to a combined hammer for constructional engineering, which comprises a hammer head and an inserting groove, the inserting groove is arranged on the hammer head, a first hammer handle is inserted in the inserting groove, a plurality of sliding grooves communicated with an inner cavity of the inserting groove are arranged in the first hammer handle, and a plurality of inserting blocks are respectively connected in the sliding grooves in a sliding mode. One end of each insertion block extends to the inner wall of the insertion groove and is in insertion fit with the insertion groove; the driving assembly is located in the first hammer handle and used for driving the multiple insertion blocks to move; the first threaded groove is formed in the top end of the first hammer handle, and a second hammer handle is connected into the first threaded groove in a threaded mode. The utility model solves the problem that the hammer handle of the hammer for constructional engineering is likely to be broken in the long-time use process of the hammer for constructional engineering, and the hammer head and the hammer handle in the hammer for constructional engineering are mostly fixed through a wooden wedge, a steel wedge or nails, so that a user cannot quickly replace the hammer handle.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction engineering, in particular to a combination hammer for construction engineering. Background Art

[0002] Construction hammers are versatile tools that are widely used in construction, carpentry, metalworking, and auto repair. These hammers usually have different designs and functions to meet the needs of different engineering tasks.

[0003] In construction, hammers are often used to hit and strike building materials such as stone, brick and wood, helping workers to connect these materials together. At the same time, hammers are also used to install and remove various components such as screws, nuts and bolts, and their heavy hitting force helps to tighten these components. In addition, hammers can also be used to adjust and repair building structures, such as adjusting door and window frames or repairing wall cracks.

[0004] For example, a Chinese patent with publication number CN212471356U discloses a hammer for construction engineering, including a hammer head and a hammer handle, wherein the hammer head includes a flat hammer head, a waist drum-shaped connecting block and a spherical hammer head, wherein the flat hammer head and the spherical hammer head are respectively welded to the upper and lower ends of the waist drum-shaped connecting block, and the left end of the hammer handle is fixedly welded to the middle section of the right side of the outer wall of the waist drum-shaped connecting block, and a slot for clamping nails is transversely provided on the bottom side wall of the spherical hammer head. The utility model is a hammer for construction engineering, which can realize nailing with one hand, and hammering nails is fast and effective. On the one hand, it reduces the risk of accidentally injuring the hand during operation, and on the other hand, it can improve the effectiveness of nailing, which is simple and practical.

[0005] The above patent has the following problems:

[0006] This patent has some disadvantages when used, such as: the hammer handle of the construction engineering hammer may break during long-term use, because the hammer head and the hammer handle of the construction engineering hammer are mostly fixed by wooden wedges, steel wedges or nails, which makes it difficult for users to quickly replace the hammer handle. In view of this, we propose a combination hammer for construction engineering. Utility Model Content

[0007] The purpose of the utility model is to provide a combination hammer for construction engineering to solve the problems raised in the above background technology.

[0008] In view of this, the utility model provides a combination hammer for construction engineering, comprising:

[0009] A hammer head and a slot, wherein the slot is provided on the hammer head, a first hammer handle is inserted into the slot, a plurality of slide grooves are provided in the first hammer handle and are connected to the inner cavity of the slot, a plurality of insert blocks are slidably connected in the plurality of slide grooves, and one end of the plurality of insert blocks extends to the inner wall of the slot and is inserted and matched with the slot;

[0010] A driving assembly, the driving assembly is located in the first hammer handle and is used to drive the multiple insert blocks to move;

[0011] The first thread groove is arranged at the top of the first hammer handle, and the second hammer handle is threadedly connected in the first thread groove.

[0012] Based on the above structure, by setting the slot and the first hammer handle, it is ensured that the first hammer handle can be inserted into the slot, and by setting the first threaded groove and the second hammer handle, it is ensured that when the user turns to the second hammer handle, one end of the second hammer handle will be moved from the first threaded groove to the outside by the action of the first threaded groove thread, so that the user can disassemble the first hammer handle and the second hammer handle, and by setting the slide groove and the plug block, it is ensured that the plug block can slide in the slide groove, and by setting the driving assembly, it is ensured that the user can drive multiple plug blocks to move through the driving assembly, ensuring that the user can quickly replace the first hammer handle, and at the same time, ensuring that the user can disassemble the entire device for transportation.

[0013] In the above technical solution, further, the driving component includes:

[0014] A first rotating groove, the first rotating groove is provided in the first hammer handle and is connected to a plurality of sliding grooves, a rotating disk is rotatably connected in the first rotating groove, a plurality of arc grooves are provided on the rotating disk, a transmission block is slidably connected in the arc groove, and one end of the transmission block extends into the sliding groove and is fixed to the insert block;

[0015] a second rotating groove, the second rotating groove being opened on the top surface of the inner wall of the first rotating groove, a rotating block being rotatably connected in the second rotating groove, and one end of the rotating block extending into the first rotating groove and being fixed to the rotating disk, a clockwork spring being arranged on the circumference of the rotating block, and one end of the clockwork spring being fixed to the rotating block, and the other end of the clockwork spring being fixed to the inner wall of the second rotating groove;

[0016] A gear groove, wherein the gear groove is provided in the first hammer handle and communicates with the second rotating groove, a first bevel gear is rotatably connected in the gear groove, and one end of the first bevel gear extends into the second rotating groove and is fixed to the rotating block, a second bevel gear is meshed with one side of the first bevel gear, a rotating rod is fixedly connected to the second bevel gear, and one end of the rotating rod penetrates the inner wall of the gear groove and extends to the outside to be rotatably connected to the first hammer handle;

[0017] A fixing assembly is located on the first hammer handle and is used to fix the rotating rod.

[0018] In this technical solution, it is ensured that the user can quickly replace the damaged first hammer handle and the second hammer handle.

[0019] In the above technical solution, further, one end of the transmission block is slidably connected to the slide groove.

[0020] In this technical solution, it is ensured that one end of the transmission block can slide normally in the slide groove.

[0021] In the above technical solution, further, one end of the rotating block is rotatably connected to the first rotating groove.

[0022] In this technical solution, it is ensured that one end of the rotating block can rotate normally in the first rotating groove.

[0023] In the above technical solution, further, the second bevel gear is located in the gear groove and is rotationally connected to the gear groove.

[0024] In this technical solution, it is ensured that the second bevel gear can rotate normally in the gear groove.

[0025] In the above technical solution, further, one end of the first bevel gear is rotatably connected to the second rotation groove.

[0026] In this technical solution, it is ensured that one end of the first bevel gear can rotate in the second rotation groove.

[0027] In the above technical solution, further, the fixing assembly includes:

[0028] A second thread groove, wherein the second thread groove is arranged on the peripheral side of the first hammer handle, a threaded sleeve is threadedly connected in the second thread groove, an annular groove is arranged on the bottom surface of the threaded sleeve, a limiting block is slidably connected in the annular groove, and one end of the limiting block passes through the rotating rod and extends into the rotating rod to be plugged into the rotating rod.

[0029] In this technical solution, it is ensured that the rotating rod will not be rotated by the outside world.

[0030] In the above technical solution, further, one end of the insert block is arranged at an angle.

[0031] In this technical solution, it is ensured that one end of the plurality of inserting blocks can be squeezed by the inner wall of the slot.

[0032] The beneficial effects of the utility model are:

[0033] 1. The combination hammer for construction engineering ensures that the first hammer handle can be inserted into the slot through the provided slot and the first hammer handle, and ensures that when the user turns to the second hammer handle through the provided first threaded groove and the second hammer handle, one end of the second hammer handle will be moved from the first threaded groove to the outside by the action of the thread of the first threaded groove, so that the user can disassemble the first hammer handle and the second hammer handle, and ensures that the plug block can slide in the slot through the provided slide groove and the provided driving assembly through the provided driving assembly, so that the user can quickly replace the first hammer handle and at the same time, ensure that the user can disassemble the entire device for transportation, thereby solving the problem that the hammer handle of the construction engineering hammer may break during long-term use of the construction engineering hammer, because the hammer head and the hammer handle of the construction engineering hammer are mostly fixed by wooden wedges, steel wedges or connected by nails, resulting in the user being unable to quickly replace the hammer handle.

[0034] 2. The combination hammer for construction engineering ensures that the user can fix the rotating rod through the fixing assembly by means of the fixing assembly, thereby preventing the rotating rod from being rotated by external influences when the user uses the overall device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0036] Figure 2 It is a schematic diagram of the explosion structure of the utility model as a whole;

[0037] Figure 3 This is one of the schematic diagrams of the internal structure of the first hammer handle of the utility model;

[0038] Figure 4 This is the second schematic diagram of the internal structure of the first hammer handle of the utility model.

[0039] The symbols in the figure are:

[0040] 1. Hammer head; 2. Slot; 3. First hammer handle; 4. Slide groove; 5. Insert block; 6. First thread groove; 7. Second hammer handle; 8. First rotating groove; 9. Turntable; 10. Arc groove; 11. Transmission block; 12. Second rotating groove; 13. Rotating block; 14. Spring; 15. Gear groove; 16. First bevel gear; 17. Second bevel gear; 18. Turning rod; 19. Second thread groove; 20. Threaded sleeve; 21. Annular groove; 22. Limit block. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0042] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0044] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0045] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0046] Embodiment 1:

[0047] See also Figure 1 - Figure 4 As shown, this embodiment provides a combination hammer for construction engineering, including:

[0048] A hammer head 1 and a slot 2, wherein the slot 2 is provided on the hammer head 1, a first hammer handle 3 is inserted into the slot 2, a plurality of slide grooves 4 communicating with the inner cavity of the slot 2 are provided in the first hammer handle 3, a plurality of insert blocks 5 are slidably connected in the plurality of slide grooves 4, and one end of the plurality of insert blocks 5 extends to the inner wall of the slot 2 and is inserted and matched with the slot 2;

[0049] A driving assembly, which is located in the first hammer handle 3 and is used to drive the multiple insert blocks 5 to move;

[0050] The first thread groove 6 is provided at the top end of the first hammer handle 3 , and the second hammer handle 7 is connected to the inner thread of the first thread groove 6 .

[0051] Embodiment 2:

[0052] This embodiment provides a combination hammer for construction engineering, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the driving assembly includes:

[0053] A first rotating groove 8 is provided in the first hammer handle 3 and communicated with the plurality of slide grooves 4. A rotating disk 9 is rotatably connected in the first rotating groove 8. The rotating disk 9 is provided with a plurality of arc grooves 10. A transmission block 11 is slidably connected in the arc groove 10. One end of the transmission block 11 extends into the slide groove 4 and is fixed to the insert block 5.

[0054] A second rotating groove 12, the second rotating groove 12 is opened on the top surface of the inner wall of the first rotating groove 8, a rotating block 13 is rotatably connected in the second rotating groove 12, and one end of the rotating block 13 extends into the first rotating groove 8 and is fixed to the rotating disk 9, a clockwork spring 14 is arranged on the circumference of the rotating block 13, and one end of the clockwork spring 14 is fixed to the rotating block 13, and the other end of the clockwork spring 14 is fixed to the inner wall of the second rotating groove 12;

[0055] A gear groove 15, which is provided in the first hammer handle 3 and communicated with the second rotating groove 12, a first bevel gear 16 is rotatably connected in the gear groove 15, and one end of the first bevel gear 16 extends into the second rotating groove 12 and is fixed to the rotating block 13, a second bevel gear 17 is meshed with one side of the first bevel gear 16, a rotating rod 18 is fixedly connected to the second bevel gear 17, and one end of the rotating rod 18 penetrates the inner wall of the gear groove 15 and extends to the outside to be rotatably connected to the first hammer handle 3;

[0056] The fixing assembly is located on the first hammer handle 3 and is used to fix the rotating rod 18 .

[0057] When in use, the user rotates the rotating rod 18 by hand, so that the rotating rod 18 drives the second bevel gear 17 to rotate in the gear slot 15. When the second bevel gear 17 rotates, the second bevel gear 17 drives the first bevel gear 16 to rotate in the gear slot 15, so that the first bevel gear 16 drives the rotating block 13 to rotate in the second rotating slot 12, so that the rotating block 13 compresses the clockwork spring 14. At this time, the clockwork spring 14 will bend and convert the mechanical energy into elastic potential energy for storage. When the rotating block 13 rotates, the rotating block 13 drives the turntable 9 to rotate in the first rotating slot 8, so that the turntable 9 squeezes the multiple transmission blocks 11 through the multiple arc slots 10 to move, so that one end of the multiple transmission blocks 11 respectively drives one end of the multiple plug-in blocks 5 from the slot 2 The first hammer handle 3 is then released from the slot 2, and the user then releases the hand that rotates the threaded sleeve 20, allowing the clockwork spring 14 to drive the rotating block 13 to rotate in the opposite direction by releasing the elastic potential energy, so that the rotating block 13 drives the turntable 9 to rotate in the opposite direction in the first rotating slot 8, and the turntable 9 squeezes the multiple transmission blocks 11 through the multiple arc grooves 10 to move in the opposite direction, and one end of the multiple transmission blocks 11 drives the multiple insertion blocks 5 to move, so that the multiple insertion blocks 5 enter the outside from the multiple slide grooves 4 respectively, and then the user can replace the first hammer handle 3. After the replacement is completed, the user inserts the bottom end of the first hammer handle 3 into the slot 2 by hand. When the first hammer handle When the bottom end of the first hammer handle 3 is inserted into the slot 2, one end of the plurality of insert blocks 5 will be squeezed by the inner wall of the slot 2, and enter the plurality of slide grooves 4 from the outside respectively, and the plurality of insert blocks 5 will drive the turntable 9 to rotate in the first rotating groove 8 through the plurality of arc grooves 10 and the plurality of transmission blocks 11. When the turntable 9 rotates, the turntable 9 will drive the rotating block 13 to rotate in the second rotating groove 12, so that the rotating block 13 compresses the spring 14, so that the spring 14 bends and converts mechanical energy into elastic potential energy for storage. When the bottom end of the first hammer handle 3 is completely inserted into the slot 2, the spring 14 will drive the rotating block 13 to rotate in the opposite direction by releasing the elastic potential energy, so that the rotating block 13 drives the turntable 9 to rotate in the opposite direction in the first rotating groove 8, so that the turntable 9 passes through the plurality of arc grooves 10 and the plurality of transmission blocks 11. The arc grooves 10 squeeze the multiple transmission blocks 11 to move in the opposite direction, so that one end of the multiple transmission blocks 11 drives the multiple insertion blocks 5 to move, so that one end of the multiple insertion blocks 5 is inserted from the multiple slide grooves 4 to the inner wall of the slot 2, and the bottom end of the first hammer handle 3 is fixed in the slot 2 and cannot move. When the second hammer handle 7 is broken, the user rotates the second hammer handle 7 by hand, so that one end of the second hammer handle 7 is moved from the first thread groove 6 to the outside by the action of the thread of the first thread groove 6, and then the user can replace the second hammer handle 7. After replacement, insert one end of the replaced second hammer handle 7 into the first thread groove 6 and rotate it in the opposite direction, so that one end of the second hammer handle 7 is moved from the outside to the first thread groove 6 by the action of the thread of the first thread groove 6.This ensures that the user can quickly replace the damaged first hammer handle 3 and the second hammer handle 7.

[0058] Embodiment 3:

[0059] This embodiment provides a combination hammer for construction engineering. In addition to the technical solutions of the above embodiments, it also has the following technical features: one end of the transmission block 11 is slidably connected to the slide groove 4.

[0060] Here, it is ensured that one end of the transmission block 11 can slide normally in the slide groove 4.

[0061] Embodiment 4:

[0062] This embodiment provides a combination hammer for construction engineering. In addition to the technical solutions of the above embodiments, it also has the following technical features: one end of the rotating block 13 is rotatably connected to the first rotating groove 8.

[0063] Here, it is ensured that one end of the rotating block 13 can rotate normally in the first rotating groove 8 .

[0064] Embodiment 5:

[0065] This embodiment provides a combination hammer for construction engineering. In addition to the technical solutions of the above embodiments, it also has the following technical features: the second bevel gear 17 is located in the gear groove 15 and is rotatably connected to the gear groove 15.

[0066] Herein, it is ensured that the second bevel gear 17 can rotate normally in the gear groove 15 .

[0067] Embodiment 6:

[0068] This embodiment provides a combination hammer for construction engineering. In addition to the technical solutions of the above embodiments, it also has the following technical features: one end of the first bevel gear 16 is rotatably connected to the second rotating groove 12.

[0069] Here, it is ensured that one end of the first bevel gear 16 can rotate in the second rotation groove 12 .

[0070] Embodiment 7:

[0071] This embodiment provides a combination hammer for construction engineering, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the fixing assembly includes:

[0072] The second thread groove 19 is provided on the peripheral side of the first hammer handle 3, and a threaded sleeve 20 is threadedly connected to the second thread groove 19. An annular groove 21 is provided on the bottom surface of the threaded sleeve 20, and a limiting block 22 is slidably connected in the annular groove 21, and one end of the limiting block 22 passes through the rotating rod 18 and extends into the rotating rod 18 to be plugged into the rotating rod 18.

[0073] When the threaded sleeve 20 is rotated, the limit block 22 will also slide relatively in the annular groove 21. When the limit block 22 moves to a suitable position, the limit block 22 will release the fixation of the rotating rod 18. When the user needs to fix the threaded sleeve 20, the user slides the limit block 22 by hand to align one end of the limit block 22 with the insertion hole on the rotating rod 18, and then the user rotates the threaded sleeve 20 in the opposite direction by hand, so that the threaded sleeve 20 is moved downward by the action of the second threaded groove 19, so that the threaded sleeve 20 drives one end of the limit block 22 from the outside to be inserted into the rotating rod 18 through the annular groove 21. At this time, the rotating rod 18 will be fixed to ensure that the rotating rod 18 will not be rotated by the outside.

[0074] Embodiment 8:

[0075] This embodiment provides a combination hammer for construction engineering, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: one end of the insert block 5 is inclined.

[0076] Here, it is ensured that one end of the plurality of inserting blocks 5 can be squeezed by the inner wall of the slot 2 .

[0077] During use, when the first hammer handle 3 of the overall device is broken during use, the user rotates the threaded sleeve 20 by hand, allowing the threaded sleeve 20 to move upward under the action of the second thread groove 19, so that the threaded sleeve 20 drives one end of the limit block 22 to move from the rotating rod 18 to the outside through the annular groove 21. At the same time, when the threaded sleeve 20 rotates, the limit block 22 will also slide relatively in the annular groove 21. When the limit block 22 moves to a suitable position, the limit block 22 will release the fixation of the rotating rod 18. Then the user rotates the rotating rod 18 by hand, allowing the rotating rod 18 to drive the second bevel gear 17 to rotate in the gear groove 15. When the second bevel gear 17 rotates, the second bevel gear 17 will drive the first bevel gear 16 to rotate in the gear groove 15, allowing the first bevel gear 16 to drive The movable rotating block 13 rotates in the second rotating groove 12, so that the rotating block 13 compresses the spring 14. At this time, the spring 14 will bend and convert mechanical energy into elastic potential energy for storage. When the rotating block 13 rotates, the rotating block 13 will drive the turntable 9 to rotate in the first rotating groove 8, so that the turntable 9 squeezes the multiple transmission blocks 11 through the multiple arc grooves 10 to move, so that one end of the multiple transmission blocks 11 respectively drives one end of the multiple insertion blocks 5 from the inner wall of the slot 2 to enter the multiple sliding grooves 4 respectively. At this time, the fixation of the first hammer handle 3 is released, and then the user manually pulls the first hammer handle 3 out of the slot 2, and then loosens the hand that rotates the threaded sleeve 20, so that the spring 14 drives the rotating block 13 to rotate in the opposite direction by releasing the elastic potential energy, so that the rotating block 13 drives the turntable 9 to rotate in the opposite direction in the first rotating groove 8, so that the turntable 9 squeezes the multiple transmission blocks 11 through the multiple arc grooves 10 to move in the opposite direction, and one end of the multiple transmission blocks 11 drives the multiple plug blocks 5 to move respectively, so that the multiple plug blocks 5 enter the outside from the multiple slide grooves 4 respectively, and then the user can replace the first hammer handle 3. After the replacement is completed, the user inserts the bottom end of the first hammer handle 3 into the slot 2 by hand. When the bottom end of the first hammer handle 3 is inserted into the slot 2, one end of the multiple plug blocks 5 will be squeezed by the inner wall of the slot 2, and enter the multiple slide grooves 4 from the outside respectively, and the multiple plug blocks 5 drive the turntable 9 to rotate in the first rotating groove 8 through the multiple arc grooves 10 and the multiple transmission blocks 11. When the turntable 9 rotates, the turntable 9 will drive The rotating block 13 rotates in the second rotating groove 12, so that the rotating block 13 compresses the spring 14, so that the spring 14 bends and converts mechanical energy into elastic potential energy for storage. When the bottom end of the first hammer handle 3 is completely inserted into the slot 2, the spring 14 will drive the rotating block 13 to rotate in the opposite direction by releasing the elastic potential energy, so that the rotating block 13 drives the turntable 9 to rotate in the opposite direction in the first rotating groove 8, so that the turntable 9 squeezes the multiple transmission blocks 11 through the multiple arc grooves 10 to move in the opposite direction, so that one end of the multiple transmission blocks 11 drives the multiple insertion blocks 5 to move respectively, and one end of the multiple insertion blocks 5 is inserted into the inner wall of the slot 2 from the multiple slide grooves 4 respectively, so that the bottom end of the first hammer handle 3 is fixed in the slot 2 and cannot move. When the second hammer handle 7 is broken,The user rotates the second hammer handle 7 by hand, so that one end of the second hammer handle 7 is moved from the first thread groove 6 to the outside by the action of the thread of the first thread groove 6, and then the user can replace the second hammer handle 7. After replacement, insert one end of the replaced second hammer handle 7 into the first thread groove 6 and rotate it in the opposite direction, so that one end of the second hammer handle 7 is moved from the outside to the first thread groove 6 by the action of the thread of the first thread groove 6, ensuring that the user can quickly replace the damaged first hammer handle 3 and the second hammer handle 7. Then the user slides the limit block 22 by hand, so that one end of the limit block 22 is aligned with the jack on the rotating rod 18, and then the user rotates the thread sleeve 20 in the opposite direction by hand, so that the thread sleeve 20 is moved downward by the action of the thread of the second thread groove 19, so that the thread sleeve 20 drives one end of the limit block 22 from the outside to be inserted into the rotating rod 18 through the annular groove 21. At this time, the rotating rod 18 will be fixed to ensure that the rotating rod 18 will not be rotated by the outside.

[0078] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A combination hammer for construction engineering, characterized in that: include: A hammer head (1) and a slot (2), wherein the slot (2) is provided on the hammer head (1), a first hammer handle (3) is inserted into the slot (2), a plurality of slide grooves (4) connected to the inner cavity of the slot (2) are provided in the first hammer handle (3), a plurality of insert blocks (5) are slidably connected to the plurality of slide grooves (4), and one end of the plurality of insert blocks (5) extends to the inner wall of the slot (2) and is inserted and matched with the slot (2); A driving assembly, the driving assembly being located in the first hammer handle (3) and being used for driving the plurality of insert blocks (5) to move; A first thread groove (6), wherein the first thread groove (6) is arranged at the top end of the first hammer handle (3), and the second hammer handle (7) is connected to the inner thread of the first thread groove (6).

2. A combination hammer for construction engineering according to claim 1, characterized in that: The drive assembly comprises: A first rotating groove (8), the first rotating groove (8) is provided in the first hammer handle (3) and is connected to a plurality of sliding grooves (4), a rotating disk (9) is rotatably connected in the first rotating groove (8), a plurality of arc grooves (10) are provided on the rotating disk (9), a transmission block (11) is slidably connected in the arc groove (10), and one end of the transmission block (11) extends into the sliding groove (4) and is fixed to the insert block (5); a second rotating groove (12), the second rotating groove (12) being arranged on the top surface of the inner wall of the first rotating groove (8), a rotating block (13) being rotatably connected in the second rotating groove (12), and one end of the rotating block (13) extending into the first rotating groove (8) and being fixed to the rotating disk (9), a spring (14) being arranged on the circumference of the rotating block (13), and one end of the spring (14) being fixed to the rotating block (13), and the other end of the spring (14) being fixed to the inner wall of the second rotating groove (12); A gear groove (15), wherein the gear groove (15) is provided in the first hammer handle (3) and is connected to the second rotating groove (12); a first bevel gear (16) is rotatably connected in the gear groove (15); one end of the first bevel gear (16) extends into the second rotating groove (12) and is fixed to the rotating block (13); a second bevel gear (17) is meshed with one side of the first bevel gear (16); a rotating rod (18) is fixedly connected to the second bevel gear (17); one end of the rotating rod (18) penetrates the inner wall of the gear groove (15) and extends to the outside to be rotatably connected to the first hammer handle (3); A fixing assembly is located on the first hammer handle (3) and is used to fix the rotating rod (18).

3. A combination hammer for construction engineering according to claim 2, characterized in that: One end of the transmission block (11) is slidably connected to the slide groove (4).

4. A combination hammer for construction engineering according to claim 2, characterized in that: One end of the rotating block (13) is rotatably connected to the first rotating groove (8).

5. A combination hammer for construction engineering according to claim 2, characterized in that: The second bevel gear (17) is located in the gear groove (15) and is rotationally connected to the gear groove (15).

6. A combination hammer for construction engineering according to claim 2, characterized in that: One end of the first bevel gear (16) is rotatably connected to the second rotation groove (12).

7. A combination hammer for construction engineering according to claim 2, characterized in that: The fixing assembly comprises: A second thread groove (19), wherein the second thread groove (19) is provided on the circumferential side of the first hammer handle (3), a thread sleeve (20) is threadedly connected to the second thread groove (19), a ring groove (21) is provided on the bottom surface of the thread sleeve (20), a limit block (22) is slidably connected to the ring groove (21), and one end of the limit block (22) passes through the rotating rod (18) and extends into the rotating rod (18) to be plugged and matched with the rotating rod (18).

8. A combination hammer for construction engineering according to claim 1, characterized in that: One end of the insert block (5) is arranged in an inclined manner.

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