Arrow rest

Abstract

An arrow rest is improved on the basis of an existing main body, an existing main shaft, an existing bracket and the like and further comprises a gear fixed to the other end, exposed out of the main body, of the main shaft. The main shaft is sleeved with the shell, the gear is contained in the shell, and one end of the pull rope is positioned on the shell; the adjusting piece is detachably and radially arranged on the shell, and the inner end of the adjusting piece can be meshed with the gear; and the positioning piece is arranged on the shell and can enable the shell to be fixed relative to the main shaft or enable the shell to rotate relative to the main shaft. According to the utility model, the natural toppling state and the vertical angle of the bracket can be conveniently and quickly adjusted so as to meet the requirements of actual use.

Description

Technical Field

[0001] The utility model relates to the technical field of bow accessories, in particular to an arrow rest for placing arrow shafts. Background Art

[0002] The arrow rest is an auxiliary component used to support the arrow shaft to assist the arrow in shooting. Currently, most bows are equipped with arrow rests. The driving methods of the arrow rest usually include bowstring driving and bow limb driving. For example, a bowstring-driven arrow rest is disclosed in the Chinese patent authorization publication number CN214095742U. It includes a main body with an inner cavity and a shaft hole communicating with the inner cavity; a main shaft, a part of which is inserted into the shaft hole of the main body and can rotate relative to the main body; a bracket fixed to one end of the main shaft exposed outside the main body, and a groove for placing the arrow shaft is provided in the middle of the bracket; a positioning disk located in the inner cavity of the main body and fixed on the main shaft to rotate with the main shaft; a torsion spring, one end of which is fixed to the main body and the other end is fixed to the positioning disk, so that the main shaft rotates and the bracket always has a tendency to fall down; a pull rope, one end of which is used to tie to the bowstring and the other end is connected to the main shaft, so that the bracket on the main shaft is in an upright state; a positioning post inserted and limited in the radial hole on the positioning disk and can rotate with the positioning disk, and the head of the positioning post can be exposed outside the positioning disk; a compression spring installed in the radial hole and abutted against the tail of the positioning post, so that the head of the positioning post always has a tendency to be exposed outside the positioning disk; at the same time, a first long groove and a second long groove corresponding to the rotation path of the positioning post are provided in the circumferential direction on the inner wall of the inner cavity of the main body, and a positioning protrusion is provided between the first long groove and the second long groove and is smoothly connected to each other. When the bracket is in a fallen state, the head of the positioning post slides in the first long groove; when the bracket is erected and in a state of placing the arrow shaft, the head of the positioning post is located in the second long groove and abuts against the positioning protrusion; when the bracket is in an upright state, the head of the positioning post slides in the second long groove. For the arrow rest with the above structure, once the bracket or the main shaft is subjected to an external force, the positioning post can cross the positioning protrusion and fall into the second long groove, that is, the main shaft can still drive the bracket to rotate a certain angle without damaging the bracket and other components. Therefore, under the requirement of ensuring the normal operation of the bracket, the arrow rest of the utility model is not easily damaged, so as to achieve the purpose of extending the service life.

[0003] However, looking at the existing such arrow rests (i.e., the bracket rotates with the main shaft), it is found in the use process that once the arrow rest is assembled, if the angle of the bracket erected or fallen is not in place completely, or if fine adjustment is required as needed, the structure of the above arrow rest cannot meet this requirement. Therefore, such an arrow rest needs to be further improved. Summary of the Utility Model

[0004] The technical problem to be solved by the present utility model is to provide a novel-structured arrow rest capable of finely adjusting the bracket angle in view of the prior art.

[0005] The technical solution adopted by the present utility model to solve the above technical problem is as follows: An arrow rest, comprising:

[0006] A main body, in which an inner cavity and a shaft hole communicating with the inner cavity are provided;

[0007] A main shaft, a part of which is inserted into the shaft hole of the above-mentioned main body and can rotate relative to the main body;

[0008] A bracket, fixed to one end of the main shaft exposed outside the above-mentioned main body, and having a groove for placing an arrow shaft in the middle of the bracket;

[0009] A swing block, located in the inner cavity of the main body and fixed on the main shaft to rotate together with the main shaft;

[0010] A limiting structure, cooperating with the swing block and the inner cavity of the main body to at least limit the bracket to stand up in a state of placing an arrow shaft;

[0011] A torsion spring, one end of which is fixed on the main body, and the other end acts on the main shaft, so that the main shaft rotates and the bracket always has a tendency to be in a natural state of falling down;

[0012] It is characterized in that it further comprises:

[0013] A gear, fixed to the other end of the main shaft exposed outside the above-mentioned main body;

[0014] A housing, sleeved on the main shaft and accommodating the gear therein, and one end of a pull rope is positioned on the housing;

[0015] An adjusting member, detachably arranged radially on the housing, and the inner end of the adjusting member can mesh with the gear;

[0016] A positioning member, arranged on the housing, capable of fixing the housing relative to the main shaft or rotating the housing relative to the main shaft.

[0017] For the convenience of processing and assembly, preferably, the housing includes a cylinder with an opening facing the other end of the main shaft and a decorative cover connected to the opening of the cylinder, the adjusting member is located on the cylinder, and the positioning member is located on the decorative cover.

[0018] Further preferably, the positioning member is a positioning bolt, a positioning screw hole threadedly connected to the positioning bolt is provided on the decorative cover, and the inner end of the positioning bolt can abut against the main shaft.

[0019] Further preferably, through holes are formed in the cylinder body, and the adjusting member is a ball constrained in the through holes and a spring abutted against the ball and capable of exposing a part of the ball inside the cylinder body, and the exposed ball can be engaged with the gear.

[0020] To facilitate connecting the pull rope, mounting holes for passing the pull rope are formed in the outer wall of the cylinder body. One end of the pull rope is positioned in the mounting hole, and the other end of the pull rope is used to connect with the bowstring.

[0021] In the above-mentioned various solutions, the limiting structure may include:

[0022] A ball head pin inserted and limited in a radial hole on the swing block and capable of rotating with the swing block, and the head of the ball head pin can be exposed on the circumferential surface of the swing block;

[0023] A compression spring installed in the radial hole and abutted against the tail of the ball head pin, so that the head of the ball head pin always has a tendency to be exposed outside the swing block;

[0024] A first long groove and a second long groove are circumferentially and spaced apart along the inner wall of the inner cavity and correspond to the rotation path of the ball head pin. When the bracket is in the fallen state, the head of the ball head pin slides in the first long groove and abuts against one end of the first long groove adjacent to the second long groove; when the bracket is erected in the state of placing the arrow rod, the head of the ball head pin is located in the second long groove and abuts against one end of the second long groove adjacent to the first long groove; when the bracket is in the upright state, the head of the ball head pin slides in the second long groove.

[0025] To extend the service life, first positioning pins abutted against the ball head pin are provided at adjacent ends of the first long groove and the second long groove. Similarly, second positioning pins abutted against the ball head pin are provided at the other ends of the first long groove and the second long groove.

[0026] Compared with the prior art, since a gear and an adjusting member capable of being engaged with the gear are added to the main shaft in the present invention, when it is necessary to adjust the tilting and erecting angles of the bracket, as long as the housing is first rotated relative to the main shaft through the positioning member, the adjusting member on the housing is driven to rotate circumferentially to the required position, the adjusting member is engaged with the corresponding teeth on the gear, and then the housing is fixed relative to the main shaft through the positioning member. At this time, the bracket is integrally connected with the swing block, the gear and the housing through the main shaft. Since the position of the pull rope tied to the housing relative to the main shaft changes as the position of the housing relative to the main shaft changes in the circumferential direction, when the bowstring is pulled, the angle at which the housing is pulled will also change, and thus the tilting and erecting angles of the bracket can be conveniently changed. Therefore, the present invention can conveniently and quickly adjust the natural tilting state and the angle when erected of the bracket to meet the requirements of actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a three-dimensional schematic diagram of the bracket in the tipping state in the embodiment of the present utility model;

[0028] Figure 2 This is a three-dimensional schematic diagram of the bracket in the erected state and in the state of placing the arrow shaft in the embodiment of the present utility model;

[0029] Figure 3 is Figure 2 three-dimensional sectional schematic diagram;

[0030] Figure 4 is Figure 2 partial three-dimensional exploded schematic diagram;

[0031] Figure 5 This is a three-dimensional schematic diagram of the main body in the embodiment of the utility model;

[0032] Figure 6 is Figure 1 sectional schematic diagram in the A-A direction in

[0033] Figure 7 is Figure 1 sectional schematic diagram in the B-B direction in

[0034] Figure 8 is Figure 7 structural schematic diagram when the bowstring is pulled to the state where the bracket is erected and in the state of placing the arrow shaft in the Detailed implementation manners

[0035] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0036] Such as Figures 1 to 8As shown, it is a preferred embodiment of the arrow rest of the present utility model. The arrow rest includes a main body 1, a main shaft 2, a bracket 3, a swing block 4, a torsion spring 5, a pull rope 6 and a limit structure 7. The main body 1 is fixed on the bow body through a base, and the base is composed of a first base (not shown in the figure) and a second base 8. The first base is fixed on the bow body through a main bolt, and the second base 8 is assembled by a left base 81 and a right base 82 through a first bolt a1. The right base 82 is fixed on the main body 1 through a second bolt a2. A chute 83 is formed on the second base 8. Through the chute 83, it can slide up and down quickly relative to the first base and be clamped and positioned by the first bolt a1. At the same time, the second base 8 is provided with a vertical third bolt a3, and a nut connected to the main body is connected to the third bolt a3. By rotating the third bolt a3, the main body can be finely adjusted up and down relative to the second base 8. After moving in place, it is clamped and positioned by the second bolt a2. That is, the main body 1 can be adjusted up and down relative to the bow body through the second base. The horizontal adjustment adopts the structure in Chinese Patent Authorization Publication No. CN210952522U. Since these up-and-down and horizontal adjustments are all prior arts, the specific detailed structures of movement, clamping and positioning will not be elaborated in detail.

[0037] In this embodiment, an inner cavity 11 and a shaft hole 12 communicating with the inner cavity 11 are opened in the above-mentioned main body 1, as Figure 4 , Figure 5 can be seen. The opening of the inner cavity 11 faces the right end of the main body 1, and the shaft hole 12 axially extends from the left end of the main body and then communicates with the inner cavity 11. The opening of the main body is shielded by an end cover 10, and a through hole 101 with the same axis distribution as the shaft hole 12 is opened on the end cover.

[0038] A part (i.e., the right end) of the above-mentioned main shaft 2 is inserted into the shaft hole 12 of the above-mentioned main body 1 and can rotate relative to the main body 1. In this embodiment, the main shaft 2 is connected by a left shaft and a right shaft, and the left shaft is designed as a hollow structure, and a screw a is installed therein to be threadedly connected with a nut b fixed to the bracket. By rotating this screw, the bracket can be horizontally moved relative to the main shaft, and the horizontal adjustment of the bracket relative to the main body is realized according to the structure in Chinese Patent Authorization Publication No. CN210952522U. At the same time, in order to install the following housing 9, the right end of the main shaft 2 axially penetrates the inner cavity 11 and then is exposed at the right end of the main body 1.

[0039] The above-mentioned bracket 3 is fixed on the left end of the main shaft 2 exposed outside the above-mentioned main body. A groove 31 for placing the arrow rod is provided in the middle of the bracket 3. The bracket 3 can rotate relative to the main body 1 together with the main shaft 2.

[0040] The swing block 4 is located in the inner cavity 11 of the main body 1. The swing block 4 can be made into an integral structure with the main shaft 2, or the swing block 4 and the main shaft 2 can be made into a separate structure as in this embodiment, and assembled into one by a keyway and other conventional structures. In this way, the rotation of the main shaft 2 can drive the swing block 4 to rotate together. The swing block 4 also has a radial hole 41 for the installation of the ball pin 71 and the compression spring 72 described below.

[0041] One end of the torsion spring 5 is fixed on the main body 1, and the other end is fixed on the swing block 4. When assembling, first rotate the torsion spring 5 counterclockwise (by Figure 7 The main shaft 2 is rotated 90 degrees and then embedded in the main body 1. The torque causes the main shaft 2 to rotate so that the bracket 3 always has a tendency to fall down. That is, in the natural state, the bracket 3 is in a state as shown in FIG. Figure 1 The dumped state is shown.

[0042] In order to facilitate the adjustment of the tilting angle and the upright angle of the bracket, in the present embodiment, a gear 20 is fixed to the other end of the main shaft 2 after passing through the above-mentioned end cover 10, a shell 9 is provided on the outer sleeve of the gear, and an adjusting member 30 is detachably provided radially on the shell 9, and the inner end of the adjusting member 30 can mesh with the gear 20; at the same time, a positioning member is provided on the shell 9, and the positioning member can fix the shell 9 relative to the main shaft 2 or rotate the shell 9 relative to the main shaft 2.

[0043] Specifically, the structure of the housing 9 can be in various forms. In this embodiment, for easy assembly, the housing includes a cylinder 91 with an opening facing the other end of the spindle and a decorative cover 92 connected to the opening of the cylinder. At this time, the adjusting member 30 can be located on the cylinder 91, and the positioning member can be located on the decorative cover 92. Figure 4 It can be seen that a through hole 911 is opened on the cylinder 91, and the above-mentioned adjustment member 30 is a ball 301 constrained in the through hole and a spring 302 that resists the ball and enables the ball to be partially exposed in the cylinder. The exposed ball can mesh with the gear 20. A first screw hole 921 is formed on the end face of the decorative cover 92, and a second screw hole 922 and a positioning screw hole 923 are formed on the circumferential surface of the decorative cover. Set screws 40 are respectively provided in the first and second screw holes. The inner ends of the two set screws 40 can respectively abut against the end face and the circumferential surface of the cylinder 91, so as to achieve the fastening of the decorative cover 92 and the cylinder 91 (of course, the decorative cover can also be threadedly connected to the mouth of the cylinder); a positioning bolt 50 is connected to the positioning screw hole 923, and the positioning bolt 50 is tightened so that its inner end abuts against the main shaft. At this time, the shell is fixed relative to the main shaft, and the positioning bolt 50 is loosened, so that the decorative cover and the cylinder can rotate relative to the main shaft, that is, this positioning bolt 50 becomes the positioning member.

[0044] Meanwhile, an installation hole 912 for the drawstring to pass through is formed in the outer wall of the cylinder body 91. One end of the drawstring 6 is positioned in the installation hole 912, and the other end of the drawstring 6 is used to connect with the bowstring. By applying force to the drawstring 6, the housing 9 and the main shaft 2 can be driven to rotate, and then the bracket 3 can be rotated together to be in an upright state.

[0045] The limiting structure 7 is fitted in the inner cavities of the swing block 4 and the main body to at least limit the bracket 3 to stand up in a state for placing the arrow shaft. This limiting structure 7 can adopt various structures in the prior art. In this embodiment, the limiting structure 7 includes a ball head pin 71 and a compression spring 72. The ball head pin 71 is inserted and limited in a radial hole 41 on the swing block 4 and can rotate with the swing block 4. The head of the ball head pin 71 can be exposed on the outer peripheral surface of the swing block 4. The tail of the ball head pin 71 abuts against one end of the compression spring 72 located in the radial hole 41, and the other end of the compression spring 72 abuts against a plug screwed to the mouth of the radial hole. Under the action of the compression spring 72, the head of the ball head pin 71 always has a tendency to be exposed outside the swing block 4.

[0046] For the ball head pin 71, a first long groove 13 and a second long groove 14 are circumferentially and spacedly distributed on the inner wall of the inner cavity 11 of the main body 1. The first long groove 13 and the second long groove 14 extend circumferentially, that is, corresponding to the rotation path of the ball head pin 71. There is a circumferential surface 15 with a smooth connection between the first long groove 13 and the second long groove 14.

[0047] When the bracket 3 is in the original tilted state, the head of the ball head pin 71 slides in the first long groove 13. Please refer to Figure 7 ., the head of the ball head pin 71 abuts against one end of the first long groove 13 adjacent to the second long groove 14; when an arrow shaft needs to be placed, the housing or the bowstring is rotated by hand to drive the main shaft 2 and the bracket 3 to rotate. The head of the ball head pin 71 crosses the circumferential surface 15 and is located in the second long groove 14. After the hand is released or the bowstring is released, under the action of the torsion spring 5, the ball head pin 71 rotates back until the head abuts against one end of the second long groove 14 adjacent to the first long groove 13. At this time, the bracket 3 stands up in a state for placing the arrow shaft, that is, the bracket 3 is close to an upright state and remains so. Please refer to Figure 8 ; when shooting an arrow, after pulling the bowstring, the main shaft 2 and the bracket 3 are continuously rotated to be in an upright state through the drawstring 6, and the head of the ball head pin 71 slides in the second long groove 14. When the arrow is shot, as the bowstring returns, the drawstring 6 is no longer taut. The main shaft 2 quickly drives the bracket 3 to return to the tilted state under the action of the torsion spring 5. During this process, the swing block 4 rotates accordingly, driving the ball head pin 71 to slide from the second long groove 14 towards the first long groove 13 side, and generating a certain speed to compress the compression spring 72 by the ball head pin 71 and then cross the circumferential surface 15 and fall into the first long groove 13, that is, return to Figure 7 the state.

[0048] Considering that there is a relatively large impact on one end of the corresponding limiting groove when returning to the original natural state or the erected state, further, a first impact-resistant pin 60 that abuts against the ball head pin 71 is provided at each adjacent end of the first long groove 13 and the second long groove 14, and a second positioning pin 70 that abuts against the ball head pin is provided at each other end of the first long groove 13 and the second long groove 14. These impact-resistant pins are preferably made of rubber rods. Of course, other materials can also be used to achieve this.

[0049] Similar to the prior art, a stop rod 80 is also fixed on the above-mentioned main body. The stop rod 80 is generally in an inverted L shape, and its horizontal portion is located above the groove 31 of the bracket 3. In addition to playing a safety role, it also has a shock-absorbing effect.

Claims

1. An arrow rest, comprising: A main body (1) having an inner cavity (11) and an axial hole (12) communicating with the inner cavity; A main shaft (2), part of which is inserted into the shaft hole (12) of the main body and can rotate relative to the main body (1); A bracket (3) is fixed on one end of the main shaft (2) exposed from the main body, and has a groove in the middle of the bracket for the arrow shaft to rest on; A swing block (4) is located in the inner cavity of the main body and is fixed on the main shaft so as to rotate together with the main shaft; A limiting structure (7) is matched with the swing block (4) and the inner cavity of the main body to at least limit the bracket to a state where it is erected and the arrow shaft is placed; a torsion spring (5), one end of which is fixed to the main body and the other end of which acts on the main shaft to rotate the main shaft (2) so that the bracket always has a tendency to fall down naturally; It is characterized by also including: A gear (20) is fixed to the other end of the main shaft (2) exposed from the main body; A housing (9) is sleeved on the main shaft (2) and accommodates the gear (20) therein, and one end of the pull rope (6) is positioned on the housing (9); An adjusting member (30) is detachably arranged radially on the housing (9), and the inner end of the adjusting member can mesh with the gear (20); The positioning member is arranged on the housing (9) and can fix the housing (9) relative to the main shaft (2) or rotate the housing (9) relative to the main shaft (2).

2. The arrow rest according to claim 1, characterized in that: The housing (9) comprises a cylinder (91) with an opening facing the other end of the main shaft and a decorative cover (92) connected to the opening of the cylinder (91); the adjusting member (30) is located on the cylinder (91) and the positioning member is located on the decorative cover (92).

3. The arrow rest according to claim 2, characterized in that: The positioning member is a positioning bolt (50), and the decorative cover (92) is provided with a positioning screw hole (923) threadedly connected to the positioning bolt, and the inner end of the positioning bolt (50) can abut against the main shaft (2).

4. The arrow rest according to claim 2, characterized in that: The cylinder (91) is provided with a through hole (911), and the adjusting member (30) is a ball (301) constrained in the through hole and a spring (302) that abuts against the ball and enables the ball to be partially exposed in the cylinder, and the exposed ball (301) can mesh with the gear (20).

5. The arrow rest according to claim 2, characterized in that: The outer wall of the cylinder is provided with a mounting hole (912) for the pull rope to pass through, one end of the pull rope (6) is positioned in the mounting hole (912), and the other end of the pull rope is used to be connected to the bowstring.

6. The arrow rest according to any one of claims 1 to 5, characterized in that: The limiting structure (7) comprises: A ball pin (71) is inserted and positioned in a radial hole on the swing block (4) so ​​as to be able to rotate along with the swing block (4), and a head of the ball pin (71) can be exposed on the peripheral surface of the swing block (4); A compression spring (72) is installed in the radial hole (41) and abuts against the tail of the ball pin (71), so that the head of the ball pin always has a tendency to be exposed outside the swing block (4); The first long groove (13) and the second long groove (14) are circumferentially spaced and distributed along the inner wall of the inner cavity (11), and correspond to the rotation path of the ball pin (71). When the bracket (3) is in a fallen state, the head of the ball pin (71) slides in the first long groove (13) and abuts against one end of the first long groove (13) adjacent to the second long groove (14); when the bracket (3) is erected and in a state of placing an arrow shaft, the head of the ball pin (71) is located in the second long groove (14) and abuts against one end of the second long groove (14) adjacent to the first long groove (13); when the bracket (3) is in an upright state, the head of the ball pin (71) slides in the second long groove (14).

7. The arrow rest according to claim 6, characterized in that: Adjacent ends of the first long slot (13) and the second long slot (14) are each provided with a first positioning pin (60) abutting against the ball pin (71).

8. The arrow rest according to claim 7, characterized in that: The other ends of the first long slot (13) and the second long slot (14) are each provided with a second positioning pin (70) abutting against the ball pin (71).

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