Bow

Abstract

The invention relates to the technical field of sports goods, in particular to a bow. The bow comprises a bow body, a bowstring is installed on the bow body, a push-pull rod capable of moving front and back is installed on the bow body, a launching channel extending in the front-back direction is arranged on the push-pull rod, the front end and the two sides of the launching channel are open, the bowstring penetrates through the side portion of the launching channel, and an operation device used for fixing and releasing the bowstring is installed on the push-pull rod. The device has the advantages that 1, the bowstring is pulled and released by using the combination of the push-pull rod and the operating device, so that compared with a traditional method in which the bowstring is directly pulled by fingers, the operation is easier, and the hands are not easy to hurt; the arrow or the projectile is launched out through the launching channel and guided through the launching channel, aiming is convenient, precision is higher, and achievement improvement is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of sports goods, and specifically, to a bow. Background Art

[0002] Existing bows or slingshots include a bow body with a bowstring mounted thereon. For example, Chinese Patent CN207922946U discloses an installation and connection structure of a bow limb and a bow handle for a new type of recurve bow, belonging to the field of archery accessories, including a bow handle, a bow limb, and a compression screw. The bow handle is provided with a bow limb installation groove with a raised side wall. The bow limb is provided with a convex block corresponding to the bow limb installation groove and a compression screw hole. The compression screw fixes the bow limb on the bow handle through a compression pad.

[0003] The above technical solutions have the following disadvantages: 1. When in use, the user needs to pull the bowstring with fingers for operation, which is inconvenient and prone to hand injury; 2. The arrow or projectile is directly ejected by the bowstring, without guidance and inconvenient for aiming, with low accuracy. Summary of the Invention

[0004] The object of the present invention is to provide a bow for the above problems, which is easier to operate when pulling the bowstring and has higher accuracy.

[0005] To achieve the above object, the present invention discloses a bow, which includes a bow body with a bowstring mounted thereon. A push rod capable of moving forward and backward is mounted on the bow body. The push rod has a launch channel extending in the front-back direction. The front end and both sides of the launch channel are open. The bowstring passes through the side of the launch channel. An operating device for fixing and releasing the bowstring is mounted on the push rod.

[0006] When in use, in the initial state, the push rod is located at the front end of the stroke. First, use the operating device to fix the bowstring; then, pull the push rod backward, and the bowstring is pulled simultaneously; finally, use the operating device to release the bowstring, and the bowstring launches the arrow or projectile in the launch channel. The arrow or projectile can be placed in the launch channel before pulling the push rod or after pulling the push rod.

[0007] The advantages of the present application are as follows: 1. The combination of the push rod and the operating device is used to pull and release the bowstring, which is easier to operate and less prone to hand injury compared with directly pulling the bowstring with fingers in the traditional method; 2. The arrow or projectile is launched through the launch channel, guided by the launch channel, convenient for aiming, with higher accuracy, which is beneficial to improving the performance.

[0008] Preferably, the bow body includes a main bracket. Movable arms are hinged to both side parts of the main bracket. A launching spring is connected between the movable arm and the main bracket. A first fixed pulley and a second fixed pulley are installed on the main bracket. A movable pulley is installed on the movable arm. The end of the bowstring is connected to the main bracket or the movable arm and passes through the launching channel after sequentially passing around the first fixed pulley, the movable pulley and the second fixed pulley.

[0009] During use, the launching spring provides tension for the bowstring. Compared with traditional elastic bow bodies, the requirement for the material of the bow body is lower, which is beneficial to cost reduction. Through the combination of the first fixed pulley, the movable pulley and the second fixed pulley, the force required to pull the bowstring can be reduced, facilitating operation.

[0010] Preferably, the bow body further includes a fixed arm fixedly installed on the side part of the main bracket. The movable arm is hinged to the fixed arm. The launching spring is located between the movable arm and the fixed arm. The first fixed pulley and the second fixed pulley are located on the fixed arm.

[0011] The bow body uses a split design of the main bracket, the fixed arm and the movable arm, which is convenient for processing and manufacturing.

[0012] Preferably, the main bracket includes two main bracket plates, and a main bracket positioning column is installed between the two main bracket plates; the fixed arm includes two fixed arm plates, and a fixed arm positioning column is installed between the two fixed arm plates; the movable arm includes two movable arm plates, and a movable arm positioning column is installed between the two movable arm plates.

[0013] The main bracket uses a combination of two main bracket plates, the fixed arm uses a combination of two fixed arm plates, and the movable arm uses a combination of two movable arm plates, which is convenient for processing and manufacturing.

[0014] Preferably, the operating device includes a turntable rotatably connected to the push-pull rod and an operating rod hinged to the push-pull rod. A bowstring pulling groove for accommodating the bowstring is provided at the lower part of the turntable. A locking groove is provided at the rear part of the turntable. A locking protrusion matching with the locking groove is provided on the operating rod. An operating spring is connected between the upper part of the turntable and the operating rod.

[0015] In the initial state, the locking protrusion is stuck into the locking groove, and the bowstring pulling groove faces downward; when it is necessary to pull the bowstring backward, first, pull the operating rod, the locking protrusion disengages from the locking groove, and under the action of the operating spring, the turntable rotates, and the bowstring pulling groove faces downward and forward, facilitating the bowstring to enter the bowstring pulling groove. Then, release the operating rod, the turntable and the operating rod reset, the locking protrusion is stuck into the locking groove again, and the bowstring pulling groove faces downward. At this time, pull the push-pull rod backward, and the bowstring will not disengage from the bowstring pulling groove. When it is necessary to release the bowstring, pull the operating rod, the locking protrusion disengages from the locking groove, and under the action of the bowstring and the operating spring, the turntable rotates, and the bowstring pulling groove faces downward and forward, facilitating the bowstring to disengage from the bowstring pulling groove. The technical effects of fixing and releasing the bowstring can be achieved only by pulling the operating rod, and the operation is simple.

[0016] Preferably, a turntable limiting groove is formed in the turntable, and a turntable limiting pin passing through the turntable limiting groove is installed on the push-pull rod.

[0017] The turntable limiting groove cooperates with the turntable limiting pin to realize the limitation of the rotation angle of the turntable, which is convenient to use.

[0018] Preferably, a bullet storage groove is formed on the push-pull rod. The bullet storage groove has a loading port communicating with the outside and a feeding port communicating with the firing channel. A push rod is slidably connected in the bullet storage groove. A push rod spring is placed between the push rod and the bullet storage groove. A push rod positioning block is arranged on the side of the push rod. A push rod positioning groove is formed on the side of the bullet storage groove. A bullet placing groove is formed on the lower side of the firing channel. A feeding groove corresponding to the feeding port is formed on the front part of the turntable.

[0019] When loading bullets, first, push the push rod forward and rotate the push rod to make the push rod positioning block snap into the push rod positioning groove to prevent the push rod from retreating. Then, put a number of bullets into the bullet storage groove through the loading port. Finally, rotate the push rod to make the push rod positioning block disengage from the push rod positioning groove, and the push rod retreats under the action of the push rod spring to push the bullets to the rear end of the bullet storage groove.

[0020] In the initial state, the feeding groove faces the lower front, and the bullets do not enter the feeding port. When using the bullets, first, pull the operating rod, the locking protrusion disengages from the locking groove, and under the action of the operating spring, the turntable rotates, the feeding groove faces forward, and one bullet enters the feeding port. Then, the turntable and the operating rod return to their original positions, and the bullet enters the firing channel through the feeding port along with the feeding groove. The bullet placing groove is used to prevent the bullet from rolling back and forth in the firing channel.

[0021] The turntable and the combination with the push-pull rod of this structure can simultaneously achieve the technical effects of fixing and releasing the bowstring and the technical effect of feeding. The operation is simple and convenient to use. Preferably, the push-pull rod includes an upper rod body and a lower rod body. An upper firing groove is formed on the lower side of the upper rod body. A lower firing groove is formed on the upper side of the lower rod body. The gap between the upper rod body and the lower rod body, the upper firing groove and the lower firing groove form a firing channel.

[0022] The push-pull rod includes an upper rod body and a lower rod body, and adopts a split design, which is convenient for processing and manufacturing.

[0023] Preferably, an upper rod body positioning groove extending in the left and right directions is formed on the lower side of the upper rod body. A lower rod body positioning groove extending in the left and right directions is formed on the upper side of the lower rod body. A rod body positioning pin is placed between the upper rod body positioning groove and the lower rod body positioning groove. The front ends of the upper rod body and the lower rod body are fixed by a front hoop body. The rear ends of the upper rod body and the lower rod body are fixed by a rear hoop body.

[0024] The upper rod positioning groove, the lower rod positioning groove and the rod positioning pin cooperate to position the upper rod and the lower rod in the front-back direction. The front hoop and the rear hoop are used for positioning the sides of the rod and the lower rod. The structure is simple and reliable, and the manufacturing cost is low.

[0025] Preferably, a grip is installed on the bow body. During use, the operator can hold the grip, and the operation is simple.

[0026] Preferably, a push-pull rod limit plate is installed on the push-pull rod. When the push-pull rod is pulled backward and the push-pull rod limit plate contacts the bow body, stop pulling the push-pull rod backward.

[0027] Preferably, a push-pull rod guide wheel for cooperating with the push-pull rod is installed on the bow body. The push-pull rod guide wheel is beneficial to ensure the smooth movement of the push-pull rod.

[0028] In summary, the beneficial effects of the present invention are as follows: During use, in the initial state, the push-pull rod is located at the front end of the stroke. First, use the operating device to fix the bowstring; then, pull the push-pull rod backward, and the bowstring is simultaneously pulled; finally, use the operating device to release the bowstring, and the bowstring will launch the arrow or projectile in the launch channel. The arrow or projectile can be placed in the launch channel before pulling the push-pull rod or can be placed in the launch channel after pulling the push-pull rod.

[0029] Using the combination of the push-pull rod and the operating device to pull and release the bowstring is easier to operate and less likely to hurt the hand compared to directly pulling the bowstring by hand in the traditional method; the arrow or projectile is launched through the launch channel, and through the guidance of the launch channel, it is convenient to aim and has higher accuracy, which is beneficial to improving the performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a three-dimensional structural schematic diagram of a bow of the present invention; Figure 2 is a top-view structural schematic diagram of a bow of the present invention; Figure 3 is a side-view structural schematic diagram of a bow of the present invention; Figure 4 is a side-view internal structural schematic diagram of a bow of the present invention; Figure 5 is Figure 4 an enlarged structural schematic diagram of the partial A in Figure 6 is Figure 4 an enlarged structural schematic diagram of the partial B in Figure 7 is Figure 6 a structural schematic diagram of the cross-section C-C in Figure 8 is a cross-sectional structural schematic diagram of the upper rod of a bow of the present invention; Figure 9 This is a schematic cross-sectional structure diagram of the lower rod body of a bow according to the present invention.

[0031] In the figure: 1, main bracket; 101, main bracket plate; 102, main bracket positioning column; 103, main bracket fixing bolt; 104, main bracket positioning plate; 105, push-pull rod guide wheel; 2, fixed arm; 201, fixed arm plate; 202, fixed arm positioning column; 203, fixed arm fixing bolt; 3, movable arm; 301, movable arm plate; 302, movable arm positioning column; 303, movable arm fixing bolt; 4, launching spring; 5, bowstring; 6, bowstring connecting bolt; 7, first fixed pulley; 8, movable pulley; 9, second fixed pulley; 10, push-pull rod; 1001, upper rod body; 1002, lower rod body; 1003, front hoop body; 1004, rear hoop body; 1005, push-pull rod limiting plate; 1006, operating rod; 1007, launching channel; 1008, ammunition storage groove; 1009, loading port; 1010, ejector rod; 1011, ejector rod spring; 1012, ejector rod positioning block; 1013, ejector rod positioning groove; 1014, upper rod body positioning groove; 1015, lower rod body positioning groove; 1016, rod body positioning pin; 1017, operating spring; 1018, locking protrusion; 1019, locking groove; 1020, turntable; 1021, feeding groove; 1022, bowstring pulling groove; 1023, turntable limiting groove; 1024, turntable limiting pin; 1025, feeding port; 1026, upper launching groove; 1027, lower launching groove; 1028, projectile placement groove; 11, grip. Specific embodiments

[0032] The following will further describe in detail the specific embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0033] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments: As Figures 1 to 3 shown, a bow includes a bow body. A bowstring 5 is mounted on the bow body. A push-pull rod 10 capable of moving forward and backward is mounted on the main bracket 1. The push-pull rod 10 has a launch channel 1007 extending in the front-rear direction. The front end and both sides of the launch channel 1007 are open. The bowstring 5 passes through the side of the launch channel 1007. An operating device for fixing and releasing the bowstring 5 is mounted on the push-pull rod 10. A handle is mounted on the push-pull rod 10 to facilitate pulling the push-pull rod 10 backward.

[0037] In use, in the initial state, the push-pull rod 10 is located at the front end of the stroke. First, use the operating device to fix the bowstring 5; then, pull the push-pull rod 10 backward, and the bowstring 5 is pulled simultaneously; finally, use the operating device to release the bowstring 5, and the bowstring 5 will launch the arrow or projectile in the launch channel 1007. The arrow or projectile can be placed in the launch channel 1007 before pulling the push-pull rod 10 or can be placed in the launch channel 1007 after pulling the push-pull rod 10.

[0038] The advantages of this application are as follows: 1. Using the combination of the push-pull rod 10 and the operating device to pull and release the bowstring 5 is easier to operate and less likely to hurt the hand compared to directly pulling the bowstring 5 in the traditional method; 2. The arrow or projectile is launched through the launch channel 1007 and is guided by the launch channel 1007, which is convenient for aiming, has higher accuracy, and is beneficial to improving the performance.

[0039] Specifically, a grip 11 is installed on the bow body. During use, the operator can hold the grip 11, and the operation is simple. A push-pull rod limit plate 1005 is installed on the push-pull rod 10. When pulling the push-pull rod 10 backward, when the push-pull rod limit plate 1005 contacts the bow body, stop pulling the push-pull rod 10 backward. A push-pull rod guide wheel 105 for cooperating with the push-pull rod 10 is installed on the bow body. The push-pull rod guide wheel 105 helps to ensure smooth movement of the push-pull rod 10.

[0040] The bow body includes a main bracket 1. Movable arms 3 are hinged to both side parts of the main bracket 1. A launch spring 4 is connected between the movable arm 3 and the main bracket 1. A first fixed pulley 7 and a second fixed pulley 9 are installed on the main bracket 1. A movable pulley 8 is installed on the movable arm 3. The end of the bowstring 5 is connected to the main bracket 1 or the movable arm 3 and passes through the launch channel 1007 after successively bypassing the first fixed pulley 7, the movable pulley 8 and the second fixed pulley 9. During use, the launch spring 4 provides tension for the bowstring 5. Compared with traditional elastic bow bodies, the requirement for the material of the bow body is lower, which helps to reduce costs. Through the combination of the first fixed pulley 7, the movable pulley 8 and the second fixed pulley 9, the force required to pull the bowstring 5 can be reduced, making the operation convenient.

[0041] Specifically, the bow body further includes a fixed arm 2 fixedly installed on the side part of the main bracket 1. The movable arm 3 is hinged to the fixed arm 2. The launch spring 4 is located between the movable arm 3 and the fixed arm 2. The first fixed pulley 7 and the second fixed pulley 9 are located on the fixed arm 2. The bow body uses a split design of the main bracket 1, the fixed arm 2 and the movable arm 3, which is convenient for processing and manufacturing.

[0042] The main bracket 1 includes two main bracket plates 101. A main bracket positioning post 102 is installed between the two main bracket plates 101. The main bracket fixing bolt 103 passes through the two main bracket plates 101 and the main bracket positioning post 102 and is connected to the main bracket fixing nut. A number of main bracket positioning plates 104 are also installed between the two main bracket plates 101; The fixing arm 2 includes two fixing arm plates 201. A fixing arm positioning post 202 is installed between the two fixing arm plates 201. The fixing arm fixing bolt 203 passes through the two fixing arm plates 201 and the fixing arm positioning post 202 and is connected to the fixing arm fixing nut; The movable arm 3 includes two movable arm plates 301. A movable arm positioning post 302 is installed between the two movable arm plates 301. The movable arm fixing bolt 303 passes through the two movable arm plates 301 and the movable arm positioning post 302 and is connected to the movable arm fixing nut. A bowstring connecting bolt 6 is also installed between the two main bracket plates 101, the two fixing arm plates 201 or the two movable arm plates 301. The end of the bowstring 5 is connected to the bowstring connecting bolt 6. In this embodiment, the bowstring connecting bolt 6 is located between the two movable arm plates 301. The main bracket 1 uses the combination of two main bracket plates 101, the fixing arm 2 uses the combination of two fixing arm plates 201, and the movable arm 3 uses the combination of two movable arm plates 301, which is convenient for processing and manufacturing.

[0043] As Figure 4 , Figure 6 shown, the operating device includes a turntable 1020 rotatably connected to the push-pull rod 10 and an operating rod 1006 hinged to the push-pull rod 10. A string-pulling groove 1022 for accommodating the bowstring 5 is provided at the lower part of the turntable 1020. A locking groove 1019 is provided at the rear part of the turntable 1020. A locking projection 1018 cooperating with the locking groove 1019 is provided on the operating rod 1006. An operating spring 1017 is connected between the upper part of the turntable 1020 and the operating rod 1006. In the initial state, the locking projection 1018 is engaged in the locking groove 1019, and the string-pulling groove 1022 faces downward; When it is necessary to pull the bowstring 5 backward, first, pull the operating rod 1006, the locking projection 1018 disengages from the locking groove 1019, and under the action of the operating spring 1017, the turntable 1020 rotates, and the string-pulling groove 1022 faces downward and forward, facilitating the bowstring 5 to enter the string-pulling groove 1022. Then, release the operating rod 1006, the turntable 1020 and the operating rod 1006 reset, the locking projection 1018 is re-engaged in the locking groove 1019, and the string-pulling groove 1022 faces downward. At this time, pull the push-pull rod 10 backward, and the bowstring 5 will not disengage from the string-pulling groove 1022. When it is necessary to release the bowstring 5, pull the operating rod 1006, the locking projection 1018 disengages from the locking groove 1019, and under the action of the bowstring 5 and the operating spring 1017, the turntable 1020 rotates, and the string-pulling groove 1022 faces downward and forward, facilitating the bowstring 5 to disengage from the string-pulling groove 1022. The technical effects of fixing and releasing the bowstring 5 can be achieved only by pulling the operating rod 1006, and the operation is simple.

[0044] The turntable 1020 is provided with a turntable limiting groove 1023, and a turntable limiting pin 1024 passing through the turntable limiting groove 1023 is installed on the push-pull rod 10. The turntable limiting groove 1023 cooperates with the turntable limiting pin 1024 to realize the limitation of the rotation angle of the turntable 1020, which is convenient to use.

[0045] As Figures 4 to 9 shown, the push-pull rod 10 has a bullet storage groove 1008. The bullet storage groove 1008 has a loading port 1009 communicating with the outside and a feeding port 1025 communicating with the firing channel 1007. A push rod 1010 is slidably connected in the bullet storage groove 1008. A push rod spring 1011 is placed between the push rod 1010 and the bullet storage groove 1008. The side of the push rod 1010 has a push rod positioning block 1012, and a push rod positioning groove 1013 is opened on the side of the bullet storage groove 1008. The lower side of the firing channel 1007 has a bullet placement groove 1028, and the front part of the turntable 1020 is provided with a feeding groove 1021 corresponding to the feeding port 1025. When loading bullets, first, push the push rod 1010 forward and rotate the push rod 1010 to make the push rod positioning block 1012 snap into the push rod positioning groove 1013 to prevent the push rod 1010 from retracting. Then, put a number of bullets into the bullet storage groove 1008 through the loading port 1009. Finally, rotate the push rod 1010 to make the push rod positioning block 1012 disengage from the push rod positioning groove 1013, and the push rod 1010 retracts under the action of the push rod spring 1011 to push the bullets to the rear end of the bullet storage groove 1008. In the initial state, the feeding groove 1021 faces the lower front, and the bullets do not enter the feeding port 1025. When using the bullets, first, pull the operating rod 1006, the locking protrusion 1018 disengages from the locking groove 1019, and under the action of the operating spring 1017, the turntable 1020 rotates, the feeding groove 1021 faces forward, and one bullet enters the feeding port 1025. Then, the turntable 1020 and the operating rod 1006 reset, and the bullet enters the firing channel 1007 through the feeding port 1025 along with the feeding groove 1021. The bullet placement groove 1028 is used to prevent the bullet from rolling back and forth in the firing channel 1007. The turntable 1020 of this structure and the combination with the push-pull rod 10 can simultaneously achieve the technical effects of fixing and releasing the bowstring 5 and the technical effect of feeding bullets, with simple operation and convenient use.

[0046] Specifically, the push-pull rod 10 includes an upper rod body 1001 and a lower rod body 1002. The lower side of the upper rod body 1001 has an upper firing groove 1026, and the upper side of the lower rod body 1002 has a lower firing groove 1027. The gap between the upper rod body 1001 and the lower rod body 1002, the upper firing groove 1026 and the lower firing groove 1027 constitute the firing channel 1007. Both the upper rod body 1001 and the lower rod body 1002 are made of aluminum profiles, with low manufacturing cost. The push-pull rod 10 includes an upper rod body 1001 and a lower rod body 1002, and adopts a split design, which is convenient for processing and manufacturing.

[0047] Specifically, the lower side of the upper rod body 1001 has an upper rod body positioning groove 1014 extending in the left-right direction, the upper side of the lower rod body 1002 has a lower rod body positioning groove 1015 extending in the left-right direction, a rod body positioning pin 1016 is placed between the upper rod body positioning groove 1014 and the lower rod body positioning groove 1015, the front ends of the upper rod body 1001 and the lower rod body 1002 are fixed by a front hoop body 1003, and the rear ends of the upper rod body 1001 and the lower rod body 1002 are fixed by a rear hoop body 1004. The upper rod body positioning groove 1014, the lower rod body positioning groove 1015 and the rod body positioning pin 1016 cooperate to position the upper rod body 1001 and the lower rod body 1002 in the front-rear direction, and the front hoop body 1003 and the rear hoop body 1004 are used for positioning the side parts of the rod body 101 and the lower rod body 1002. The structure is simple and reliable, and the manufacturing cost is low.

[0048] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A bow, comprising a bow body, on which a bowstring (5) is installed, characterized in that, A push-pull rod (10) capable of moving forward and backward is installed on the bow body. The push-pull rod (10) has a firing channel (1007) extending in the front-back direction. The front end and both sides of the firing channel (1007) are open. The bowstring (5) passes through the side of the firing channel (1007). An operating device for fixing and releasing the bowstring (5) is installed on the push-pull rod (10).

2. The bow according to claim 1, wherein, The bow body includes a main bracket (1). Movable arms (3) are hinged to both side parts of the main bracket (1). A firing spring (4) is connected between the movable arm (3) and the main bracket (1). A first fixed pulley (7) and a second fixed pulley (9) are installed on the main bracket (1). A movable pulley (8) is installed on the movable arm (3). The end of the bowstring (5) is connected to the main bracket (1) or the movable arm (3), and passes through the firing channel (1007) after successively bypassing the first fixed pulley (7), the movable pulley (8) and the second fixed pulley (9).

3. The bow according to claim 2, characterized in that, The bow body further includes a fixed arm (2) fixedly installed on the side part of the main bracket (1). The movable arm (3) is hinged to the fixed arm (2). The firing spring (4) is located between the movable arm (3) and the fixed arm (2). The first fixed pulley (7) and the second fixed pulley (9) are located on the fixed arm (2).

4. The bow according to claim 2, wherein The main bracket (1) includes two main bracket plates (101). A main bracket positioning column (102) is installed between the two main bracket plates (101); the fixed arm (2) includes two fixed arm plates (201). A fixed arm positioning column (202) is installed between the two fixed arm plates (201); the movable arm (3) includes two movable arm plates (301). A movable arm positioning column (302) is installed between the two movable arm plates (301).

5. The bow according to claim 1, characterized in that, The operating device includes a turntable (1020) rotatably connected to the push-pull rod (10) and an operating rod (1006) hinged to the push-pull rod (10). A string-pulling groove (1022) for accommodating the bowstring (5) is formed in the lower part of the turntable (1020). A locking groove (1019) is formed in the rear part of the turntable (1020). A locking projection (1018) cooperating with the locking groove (1019) is provided on the operating rod (1006). An operating spring (1017) is connected between the upper part of the turntable (1020) and the operating rod (1006).

6. The bow according to claim 5, characterized in that, A turntable limiting groove (1023) is formed in the turntable (1020). A turntable limiting pin (1024) passing through the turntable limiting groove (1023) is installed on the push-pull rod (10).

7. The bow according to claim 5, characterized in that, The push rod (10) is provided with a cartridge storage groove (1008). The cartridge storage groove (1008) has a loading port (1009) communicating with the outside and a feeding port (1025) communicating with the firing channel (1007). A push rod (1010) is slidably connected in the cartridge storage groove (1008). A push rod spring (1011) is placed between the push rod (1010) and the cartridge storage groove (1008). The side of the push rod (1010) is provided with a push rod positioning block (1012). A push rod positioning groove (1013) is formed in the side of the cartridge storage groove (1008). The lower side of the firing channel (1007) has a projectile placement groove (1028). A feeding groove (1021) corresponding to the feeding port (1025) is formed in the front part of the turntable (1020).

8. The bow according to any one of claims 1 to 7, characterized in that, The push rod (10) includes an upper rod body (1001) and a lower rod body (1002). The lower side of the upper rod body (1001) has an upper firing groove (1026). The upper side of the lower rod body (1002) has a lower firing groove (1027). The gap between the upper rod body (1001) and the lower rod body (1002), the upper firing groove (1026) and the lower firing groove (1027) constitute the firing channel (1007).

9. The bow according to claim 8, wherein, The lower side of the upper rod body (1001) has an upper rod body positioning groove (1014) extending in the left-right direction. The upper side of the lower rod body (1002) has a lower rod body positioning groove (1015) extending in the left-right direction. A rod body positioning pin (1016) is placed between the upper rod body positioning groove (1014) and the lower rod body positioning groove (1015). The front ends of the upper rod body (1001) and the lower rod body (1002) are fixed by a front hoop body (1003). The rear ends of the upper rod body (1001) and the lower rod body (1002) are fixed by a rear hoop body (1004).

10. The bow according to any one of claims 1 to 7, characterized in that, A grip (11) is installed on the bow body. A push rod limiting plate (1005) is installed on the push rod (10). A push rod guide wheel (105) for cooperating with the push rod (10) is installed on the bow body.

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