Crowbar

Abstract

The utility model discloses a crowbar. The utility model relates to the technical field of crowbars. According to the scheme, the crowbar comprises a crowbar body, a first crowbar head, an angle adjusting assembly and a limiting assembly. A containing cavity with an opening is formed in one side of the pry bar, the angle adjusting assembly comprises a rotating part and a rotating shaft, the rotating shaft penetrates through the rotating part, the two ends of the rotating shaft are rotationally connected with the side wall of the containing cavity, and the first pry head is installed on the rotating part and extends out of the opening; the limiting assembly is used for controlling the rotating angle of the rotating piece and adjusting the angle of the first prying head. The angle of the crowbar when the crowbar pries an object can be adjusted, and the application range of the crowbar is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of crowbars, in particular to a crowbar. Background Art

[0002] During the construction process, a crowbar can be used to dismantle old, useless structures, such as walls, floors, etc. It can also be used to pry up objects to be moved for transportation. The crowbar is used to insert under the bottom of the object to be moved, use the principle of leverage to pry up the object to be moved, and then place it on the ground bull for movement. The front end of a general crowbar usually includes a flat insertion portion to easily insert under the bottom surface of the object, making it easier to pry up the object. There are many types of heavy objects that need to be lifted at the construction site, especially in prefabricated building construction. Prefabricated exterior walls, beams and other components need to be assembled on site. There are more types of heavy objects that need to be lifted or moved, and the weight and lifting height requirements of different types of heavy objects may also be different.

[0003] In the process of construction, a crowbar is a simple tool that is often used to lift or move heavy objects. The angle between the crowbar and the object to be pried is generally 45 degrees as the reference point, and try to avoid an angle that is too large or too small. In actual operation, different angles can be selected according to different situations. Generally, an angle between 20 degrees and 90 degrees can be used to achieve the best effect; when it is necessary to pry open objects that are easier to move, a smaller angle can be selected, such as 20 degrees to 30 degrees, so that a clearer force can be exerted; and when it is necessary to pry open larger and heavier objects, a larger angle can be selected, such as 45 degrees to 60 degrees, so that greater force can be exerted; At present, the crowbars in the prior art cannot achieve prying at multiple angles, which greatly reduces the scope of application of the crowbar. Utility Model Content

[0004] The purpose of the utility model is to provide a crowbar, which can propose a solution to the deficiencies of the prior art, can adjust the angle of the crowbar when prying an object, and increase the application range of the crowbar.

[0005] The utility model is realized by the following technical solutions:

[0006] A crowbar comprises a crowbar, a first crowbar head, an angle adjustment assembly and a limit assembly; a receiving cavity with an opening is provided on one side of the crowbar, the angle adjustment assembly comprises a rotating member and a rotating shaft, the rotating shaft passes through the rotating member, both ends of the rotating shaft are rotatably connected to the side wall of the receiving cavity, the first crowbar head is installed on the rotating member, and the first crowbar head extends out of the opening; the limit assembly is used to control the rotation angle of the rotating member and adjust the angle of the first crowbar head.

[0007] Furthermore, in the utility model, the above-mentioned limit assembly includes a limit piece, a connecting rod, an elastic piece and a pressing piece; a through opening connected to the accommodating cavity is provided on one side of the pry bar, the connecting rod passes through the limit piece, one end of the connecting rod is connected to the side wall of the accommodating cavity, and the other end of the connecting rod extends toward the through opening; the pressing piece includes a pressing part and a connecting part, the connecting part passes through the through opening and is slidably connected to the connecting rod, and the elastic piece is connected between the limit piece and the side wall of the accommodating cavity; a plurality of limit grooves are provided on the side wall of the rotating part along the circumferential direction, and the limit piece can cooperate with different limit grooves to change the angle of the first pry head.

[0008] Furthermore, in the utility model, the elastic member is a return spring, which is sleeved on the connecting rod, one end of the return spring is connected to the limit member, and the other end of the return spring is connected to the side wall of the accommodating cavity.

[0009] Furthermore, in the utility model, one side of the connecting rod is located in the connecting part, and the connecting part can slide along the radial direction of the connecting rod. When the connecting part slides toward the limiting member, the limiting member can be pushed to leave the limiting groove of the rotating member.

[0010] Furthermore, in the present invention, the outer diameter of the pressing portion is greater than the inner diameter of the through opening.

[0011] Furthermore, in the present invention, the outer diameter of the connecting portion is matched with the inner diameter of the through opening.

[0012] Furthermore, in the utility model, a second pry head is installed at one end of the pry bar away from the first pry head, and the second pry head is provided with a nail-removing through groove.

[0013] Furthermore, in the utility model, the above-mentioned pry rod includes a first connecting rod, a second connecting rod and a fixing piece; the first connecting rod and the second connecting rod are slidably matched, and the fixing piece is used to fix the first connecting rod and the second connecting rod and adjust the overall length of the first connecting rod and the second connecting rod.

[0014] Furthermore, in the utility model, the above-mentioned first connecting rod is a hollow structure, one side of the second connecting rod is located inside the first connecting rod, the first connecting rod is provided with a first fixing hole, and the second connecting rod is provided with a plurality of second fixing holes along the axial direction, and the plurality of second fixing holes are all adapted to the first fixing hole, and the fixing piece is a bolt, and the bolt can be inserted into the first fixing hole and one of the second fixing holes at the same time.

[0015] Furthermore, in the utility model, a non-slip layer is provided on the surface of the pry bar.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] During the construction process, when it is necessary to pry open easily movable objects, a smaller angle, such as 20 to 30 degrees, can be selected, so that a clearer force can be exerted; when it is necessary to pry open larger and heavier objects, a larger angle, such as 45 to 60 degrees, can be selected, so that a greater force can be exerted; if too small an angle is selected for operation, the force release of the crowbar will be limited. In addition, if the angle is too small, the force consumption of the movement will be more, and the energy consumption will also increase; if the angle is too large, the resistance of the object will be increased, and the force consumption of the crowbar will also be increased. In addition, too large an angle will easily cause the crowbar to slide and the object cannot be pried. During the construction process, the construction personnel can adjust the inclination angle of the first pry head according to different working conditions, and then fix the first pry head in this state through the limit assembly, and control the adjustment angle of the first pry head to be 20 to 90 degrees, which greatly improves the application range of the crowbar. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0019] Figure 1 It is a kind of crowbar stereogram;

[0020] Figure 2 It is a longitudinal section view of the crowbar;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a cross-sectional view of the pry bar.

[0023] Marks and corresponding parts names in the attached drawings:

[0024] 1-pry bar, 2-first pry head, 3-second pry head, 4-nail removal slot, 5-limiting assembly, 6-accommodating cavity, 7-through opening, 8-rotating shaft, 9-rotating member, 10-limiting slot, 11-connecting rod, 12-reset spring, 13-limiting member, 14-connecting part, 15-pressing part, 16-first connecting rod, 17-second connecting rod, 18-first fixing hole, 19-bolt, 20-second fixing hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0026] Example

[0027] Please refer to Figures 1 to 4 .

[0028] The present embodiment provides a crowbar, comprising a crowbar 1, a first crowbar head 2, an angle adjustment assembly and a limit assembly 5; a receiving cavity 6 with an opening is provided on one side of the crowbar 1, the angle adjustment assembly comprises a rotating member 9 and a rotating shaft 8, the rotating shaft 8 passes through the rotating member 9, both ends of the rotating shaft 8 are rotatably connected to the side walls of the receiving cavity 6, the first crowbar head 2 is installed on the rotating member 9, and the first crowbar head 2 extends out of the opening; the limit assembly 5 is used to control the rotation angle of the rotating member 9 and adjust the angle of the first crowbar head 2.

[0029] In the above-mentioned embodiment, during the construction process, the crowbar is a simple tool that is frequently used to lift or displace heavy objects, such as building materials or equipment. There are many types of heavy objects that need to be lifted on the construction site, especially in the construction of prefabricated buildings, where prefabricated exterior walls, beams and other components all need to be assembled on site and all need to be lifted or displaced. The crowbar is composed of a crowbar 1, a first crowbar head 2, an angle adjustment assembly and a limit assembly 5. One side of the crowbar 1 has a receiving cavity 6, and the receiving cavity 6 has an opening connected to the outside world, and the opening is located at the end of the crowbar 1. The angle adjustment assembly is composed of a roller-shaped rotating member 9 and a rotating shaft 8. The rotating shaft 8 passes through the axis of the rotating member 9, and both ends of the rotating shaft 8 are rotatably connected to the side walls of the accommodating cavity 6. The rotating shaft 8 can drive the rotating member 9 to rotate in the accommodating cavity 6. The first prying head 2 is installed on the rotating member 9, one end of the first prying head 2 is located in the accommodating cavity 6, and the other end of the first prying head 2 extends to the outside through the opening. The rotating member 9 can drive the first prying head 2 to rotate, thereby adjusting the inclination angle of the first prying head 2; a limiting component 5 is also installed in the accommodating cavity 6. When the limiting component 5 acts on the rotating member 9, the rotating member 9 stops rotating. When the limiting component 5 does not act on the rotating member 9, the rotating member 9 can continue to rotate to adjust the angle of the first prying head 2.

[0030] In this embodiment, during the construction process, when it is necessary to pry open an object that is easy to move, a smaller angle, such as 20 to 30 degrees, can be selected, so that a clearer force can be exerted; and when it is necessary to pry open a larger or heavier object, a larger angle, such as 45 to 60 degrees, can be selected, so that a greater force can be exerted; if too small an angle is selected for operation, the force release of the crowbar will be limited. In addition, if the angle is too small, the force consumption of the movement will be more, and the energy consumed will also increase; if the angle is too large, the resistance of the object will be increased, and the force consumption of the crowbar will also be increased. In addition, too large an angle will easily cause the crowbar to slide and the object cannot be pried. During the construction process, the construction personnel can adjust the inclination angle of the first prying head 2 according to different working conditions, and then fix the first prying head 2 in this state through the limit assembly 5, and control the adjustment angle of the first prying head 2 to be 20 to 90 degrees, which greatly improves the application range of the crowbar.

[0031] Furthermore, in the utility model, the limiting assembly 5 includes a limiting member 13, a connecting rod 11, an elastic member and a pressing member; one side of the pry bar 1 is provided with a through opening 7 connected to the accommodating cavity 6, the connecting rod 11 passes through the limiting member 13, one end of the connecting rod 11 is connected to the side wall of the accommodating cavity 6, and the other end of the connecting rod 11 extends toward the through opening 7, the pressing member includes a pressing portion 15 and a connecting portion 14, the connecting portion 14 passes through the through opening 7 and is slidably connected to the connecting rod 11, and an elastic member is connected between the limiting member 13 and the side wall of the accommodating cavity 6; the side wall of the rotating member 9 is provided with a plurality of limiting grooves 10 along the circumferential direction, and the limiting member 13 can cooperate with different limiting grooves 10 to change the angle of the first pry head 2.

[0032] In this embodiment, the limit assembly 5 is composed of a limit member 13, a connecting rod 11, an elastic member and a pressing member. One end of the connecting rod 11 is fixedly connected to the side wall of the accommodating cavity 6 (the connecting rod 11 is parallel to the rotating shaft 8), and the other end of the connecting rod 11 is located near the through opening 7. The connecting rod 11 passes through the limit member 13, and the limit member 13 can move up and down along the axial direction of the connecting rod 11, but the limit member 13 cannot rotate relative to the connecting rod 11 (the cross-section of the connecting rod 11 is a polygon, and the inner hole of the limit member 13 is adapted to the connecting rod 11). An elastic member is installed between the limit member 13 and the side wall of the accommodating cavity 6. In the initial state, the height of the limit member 13 is equal to the height of the rotating member 9, and the limit member 13 can just fit into the other end of the rotating member 9. In a limiting groove 10, the limiting member 13 limits the rotating member 9, and the rotating member 9 cannot rotate to adjust the angle of the first prying head 2 in this state; in the adjustment state, the construction worker presses the pressing part 15, and the pressing part 15 drives the connecting part 14 to move downward (the connecting part 14 cooperates with the connecting rod 11). When the connecting part 14 presses against the limiting member 13, the elastic member is deformed by the pressure, and the limiting member 13 moves downward under the push of the connecting part 14 until it leaves the limiting groove 10 of the rotating member 9. At this time, the construction worker can rotate the first prying head 2 to adjust its angle. After the adjustment is completed, the force on the pressing part 15 is canceled, and the limiting member 13 rebounds to its original position under the action of the elastic member, and is stuck in the limiting groove 10 of the corresponding rotating member 9 to achieve fixation.

[0033] Furthermore, in the present invention, the elastic member is a return spring 12 , which is sleeved on the connecting rod 11 , one end of the return spring 12 is connected to the limit member 13 , and the other end of the return spring 12 is connected to the side wall of the accommodating cavity 6 .

[0034] In this embodiment, when the pressing portion 15 is pressed, the connecting portion 14 can be pressed against the limiting member 13, causing the return spring 12 to deform and the limiting member 13 to move downward. After the force applied to the pressing portion 15 is cancelled, the return spring 12 recovers its deformation and drives the limiting member 13 to snap into the limiting groove 10 of the corresponding rotating member 9; and the return spring 12 is sleeved on the connecting rod 11, and the return spring 12 is very stable when deforming or recovering its deformation.

[0035] Furthermore, in the present invention, one side of the connecting rod 11 is located in the connecting portion 14 , and the connecting portion 14 can slide radially along the connecting rod 11 . When the connecting portion 14 slides toward the limiting member 13 , the limiting member 13 can be pushed to leave the limiting groove 10 of the rotating member 9 .

[0036] In this embodiment, the connecting portion 14 is a rod-shaped hollow structure, the inner diameter of the connecting portion 14 is larger than the outer diameter of the connecting rod 11, one side of the connecting rod 11 is located in the connecting portion 14, and the connecting rod 11 and the connecting portion 14 are slidably matched; when adjusting the angle of the first prying head 2, the pressing portion 15 is pressed, and the pressing portion 15 drives the connecting portion 14 to move downward. When the connecting portion 14 moves to the limiting member 13, it is pushed to make the first prying head 2 move downward and leave the limiting groove 10 of the rotating member 9. After adjusting the angle of the first prying head 2, the force on the pressing portion 15 is cancelled, and the limiting member 13 rebounds to its original position under the action of the elastic member, and is snapped into the limiting groove 10 of the corresponding rotating member 9 to achieve fixation.

[0037] Furthermore, in the present invention, the outer diameter of the pressing portion 15 is greater than the inner diameter of the through hole 7 .

[0038] In this embodiment, after pressing the pressing portion 15, the pressing portion 15 moves downward. Since the outer diameter of the pressing portion 15 is larger than the inner diameter of the through opening 7, the pressing portion 15 is prevented from passing through the through opening 7 into the accommodating cavity 6. If the pressing portion 15 enters the accommodating cavity 6 and then is taken out, the overall efficiency will be hindered.

[0039] Furthermore, in the present invention, the outer diameter of the connecting portion 14 is adapted to the inner diameter of the through opening 7 .

[0040] In this embodiment, the connecting portion 14 can just pass through the through opening 7 and enter the accommodating cavity 6. The connecting portion 14 is also very stable during the movement, thereby avoiding the problem of shaking of the connecting portion 14 when moving.

[0041] Furthermore, in the present invention, a second prying head 3 is installed at one end of the prying bar 1 away from the first prying head 2 , and the second prying head 3 is provided with a nail-removing through groove 4 .

[0042] In this embodiment, a second prying head 3 is installed at one end of the pry bar 1. The inclination angle of the second prying head can be 45 degrees. The 45-degree second prying head can be suitable for most working conditions; and the second prying head 3 is provided with a nail pulling groove 4. The second prying head 3 can pull out nails in the ground or wall panels, and has powerful functions.

[0043] Furthermore, in the utility model, the pry bar 1 includes a first connecting rod 16, a second connecting rod 17 and a fixing member; the first connecting rod 16 and the second connecting rod 17 are slidably matched, and the fixing member is used to fix the first connecting rod 16 and the second connecting rod 17 and adjust the overall length of the first connecting rod 16 and the second connecting rod 17.

[0044] In this embodiment, the crowbar 1 is composed of a first connecting rod 16, a second connecting rod 17 and a fixing member. The first connecting rod 16 and the second connecting rod 17 can slide relative to each other to adjust the overall length, and finally the first connecting rod 16 and the second connecting rod 17 are fixed by the fixing member; if the crowbar is used in a narrower venue, the length of the crowbar 1 can be shortened to facilitate the operation of the construction workers; if the crowbar is used in a spacious venue, the length of the crowbar 1 can be lengthened to save more effort.

[0045] Furthermore, in the utility model, the first connecting rod 16 is a hollow structure, one side of the second connecting rod 17 is located inside the first connecting rod 16, the first connecting rod 16 is provided with a first fixing hole 18, and the second connecting rod 17 is provided with a plurality of second fixing holes 20 along the axial direction, and the plurality of second fixing holes 20 are all adapted to the first fixing hole 18, and the fixing piece is a bolt 19, which can be inserted into the first fixing hole 18 and one of the second fixing holes 20 at the same time.

[0046] In this embodiment, the first connecting rod 16 and the second connecting rod 17 can slide relative to each other, and the first fixing hole 18 of the first connecting rod 16 can cooperate with the different second fixing hole 20 of the second connecting rod 17, so as to adjust the overall length of the first connecting rod 16 and the second connecting rod 17. After the first fixing hole 18 of the first connecting rod 16 is aligned with the preset second fixing hole 20 of the second connecting rod 17, the bolt 19 is passed through the above-mentioned first fixing hole 18 and the second fixing hole 20 to achieve fixation.

[0047] Furthermore, in the present invention, the surface of the pry bar 1 is provided with an anti-slip layer.

[0048] In this embodiment, the construction worker needs to hold the pry bar 1 when using the crowbar, and needs to apply a large force to the pry bar 1 when prying an object. The surface of the pry bar 1 has an anti-slip layer to avoid slipping (the anti-slip layer can be a rubber layer, an anti-slip pattern layer, etc.), thereby avoiding serious accidents.

[0049] In summary, the embodiment of the utility model provides a crowbar. During the construction process, when it is necessary to pry open an object that is relatively easy to move, a smaller angle, such as 20 to 30 degrees, can be selected, so that a clearer force can be exerted; and when it is necessary to pry open a larger or heavier object, a larger angle, such as 45 to 60 degrees, can be selected, so that a greater force can be exerted; if too small an angle is selected for operation, the force release of the crowbar will be limited. In addition, when the angle is too small, the force consumption of the movement will be more, and the energy consumed will also increase; if the angle is too large, the resistance of the object will be increased, and the force consumption of the crowbar will also be increased. In addition, too large an angle will easily cause the crowbar to slide and the object cannot be pried. During the construction process, the construction personnel can adjust the inclination angle of the first prying head 2 according to different working conditions, and then fix the first prying head 2 in this state through the limit assembly 5, and control the adjustment angle of the first prying head 2 to be 20 to 90 degrees, which greatly improves the application range of the crowbar.

[0050] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A crowbar, characterized in that: It includes a pry bar, a first pry head, an angle adjustment component and a limit component; A receiving cavity with an opening is provided on one side of the pry bar, the angle adjustment assembly includes a rotating member and a rotating shaft, the rotating shaft passes through the rotating member, both ends of the rotating shaft are rotatably connected to the side wall of the receiving cavity, the first pry head is installed on the rotating member, and the first pry head extends out of the opening; The limiting assembly is used to control the rotation angle of the rotating member and adjust the angle of the first prying head.

2. A crowbar according to claim 1, characterized in that: The limiting assembly includes a limiting member, a connecting rod, an elastic member and a pressing member; A through opening communicating with the accommodating cavity is provided on one side of the pry bar, the connecting rod passes through the limiting member, one end of the connecting rod is connected to the side wall of the accommodating cavity, and the other end of the connecting rod extends toward the through opening, the pressing member includes a pressing portion and a connecting portion, the connecting portion passes through the through opening and is slidably connected to the connecting rod, and the elastic member is connected between the limiting member and the side wall of the accommodating cavity; The side wall of the rotating member is provided with a plurality of limiting grooves along the circumferential direction, and the limiting member can cooperate with different limiting grooves to change the angle of the first prying head.

3. A crowbar according to claim 2, characterized in that: The elastic member is a return spring, which is sleeved on the connecting rod, one end of the return spring is connected to the limiting member, and the other end of the return spring is connected to the side wall of the accommodating cavity.

4. A crowbar according to claim 2, characterized in that: The connecting part is a hollow structure, one side of the connecting rod is located in the connecting part, the connecting part can slide along the radial direction of the connecting rod, and during the sliding process of the connecting part toward the limiting member, the limiting member can be pushed to leave the limiting groove of the rotating member.

5. A crowbar according to claim 2, characterized in that: The outer diameter of the pressing portion is larger than the inner diameter of the through hole.

6. A crowbar according to claim 2, characterized in that: The outer diameter of the connecting portion is matched to the inner diameter of the through opening.

7. A crowbar according to claim 1, characterized in that: A second pry head is installed at one end of the pry bar away from the first pry head, and the second pry head is provided with a nail-lifting through groove.

8. A crowbar according to claim 1, characterized in that: The pry bar comprises a first connecting rod, a second connecting rod and a fixing member; The first connecting rod and the second connecting rod are slidably matched, and the fixing member is used to fix the first connecting rod and the second connecting rod and adjust the overall length of the first connecting rod and the second connecting rod.

9. A crowbar according to claim 8, characterized in that: The first connecting rod is a hollow structure, one side of the second connecting rod is located inside the first connecting rod, the first connecting rod is provided with a first fixing hole, and the second connecting rod is provided with a plurality of second fixing holes along the axial direction, and the plurality of second fixing holes are all adapted to the first fixing hole, and the fixing piece is a bolt, and the bolt can be inserted into the first fixing hole and one of the second fixing holes at the same time.

10. A crowbar according to any one of claims 1 to 9, characterized in that: The surface of the pry bar is provided with an anti-skid layer.

Images