CN215572428U - Rubber band clamping device and slingshot - Google Patents

Abstract

The utility model relates to a rubber band clamping device, including propping head and clamping part, one side of propping the head is provided with the opening, the interior bottom of propping the head sets up movable groove, clamping part includes inner and presss from both sides tight end, press from both sides tight end cooperation prop the head and be used for pressing from both sides tight fixed rubber band, clamping part rotate install in prop the head and seted up open-ended side and its rotation axis are unanimous with by double-layered rubber band width direction, be provided with first shell fragment in the movable groove the elastic restoring force of first shell fragment acts on down the clamping part has the trend of pressing from both sides tight rubber band. The application has the following expected technical effects: after the clamping part is arranged on the supporting head, one end of the rubber band extends into the space between the supporting head and the clamping end, the clamping part is rotated clockwise until the limiting arc-shaped groove on the first elastic sheet abuts against the inner end, and the purpose of firmly connecting the rubber band clamping device with the rubber band is achieved; when the unlocking is needed, the elastic inner end is rotated out of the limiting arc-shaped groove anticlockwise.

Description

Rubber band clamping device and slingshot

Technical Field

The application relates to the technical field of clamping tools, in particular to a rubber band clamping device and a slingshot.

Background

At present, the slingshot is taken as an entertainment tool for outdoor activities, is suitable for people at all ages to use in entertainment, has athletic functions gradually accepted by people, and is loved by more and more outdoor players. Along with the improvement of society and living standard, people continuously improve the pursuit of various performances of slingshots, such as attractiveness, shooting accuracy, rubber band installation rapidness and the like, and correspondingly design a plurality of slingshots with better quality. With respect to the related art among the above, the inventors consider that the following drawbacks exist: the disassembly, assembly and tightness adjustment of the fastening screws require a certain time, which affects the shooting continuity; the tightness of the fastening screw needs to be adjusted and tested repeatedly, the rubber band is easy to loosen when the fastening screw is loosened, or the two sides are unbalanced in stress after one end is loosened to influence the shooting accuracy, if the clamping plate is easy to clamp the rubber band due to over-tightening of the fastening screw, the rubber band is broken after being tightened; in addition, the fastening screw is repeatedly adjusted and screwed, the screw thread is easily abraded, the screw hole of the clamping plate or the bow head is enlarged, the fastening screw is easily loosened, the clamping plate cannot play a role in fixing the rubber band, and the slingshot is scrapped.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem of rubber band installation, this application provides a rubber band clamping device and catapult. The application provides a rubber band clamping device and catapult adopts following technical scheme: a rubber band clamping device comprises a supporting head and a clamping part, wherein one side of the supporting head is provided with an opening, the inner bottom of the supporting head is provided with a movable groove, the opening is communicated with the movable groove, the clamping part comprises an inner end and a clamping end, the clamping end is matched with the supporting head to clamp and fix the rubber band, the clamping part is rotatably arranged on the side surface of the supporting head provided with the opening, the rotating axis of the clamping part is consistent with the width direction of the clamped rubber band, the inner end of the clamping part moves in the movable groove, and part of the clamping part moves in the opening, a first elastic sheet is arranged in the movable groove, at least one limiting arc-shaped groove is arranged on the surface of the first elastic sheet close to the inner end, the limiting arc-shaped groove is adapted to the inner end, the clamping part has the tendency of clamping the rubber band under the action of the elastic restoring force of the first elastic sheet. By adopting the technical scheme, after the clamping part is arranged on the supporting head, one end of the rubber band is stretched between the supporting head and the clamping end, the clamping part is rotated clockwise until the limiting arc-shaped groove on the first elastic sheet abuts against the inner end, and the purpose of firmly connecting the rubber band clamping device and the rubber band is achieved; when the unlocking is needed, the elastic inner end is rotated out of the limiting arc-shaped groove anticlockwise so as to achieve the purpose of unlocking; the rubber band clamping device is simple in structure and convenient to operate, and compared with a clamping mode of fastening a rubber band clamping plate by a fastening screw. Optionally, the clamping portion further includes a rotating shaft, the rotating shaft is located inside the clamping portion and located between the inner end and the clamping end, and a rotating groove matched with the rotating shaft is formed in the side face of the supporting head. Through adopting above-mentioned technical scheme, the swivelling chute provides fixed mounted position for the rotation axis, and the rotation axis sets up can realize the purpose of clamping part and inner synchronous revolution between inner and the clamping end. Optionally, the first elastic sheet is horizontally arranged in the movable groove, and one end of the first elastic sheet close to the opening is designed to be a circular arc. Through adopting above-mentioned technical scheme, along with the rotation that clamping part does not stop, plastic deformation takes place easily in the long-time butt inner of first shell fragment, leads to first shell fragment elasticity variation, makes first shell fragment life-span shorten, and first shell fragment is close to opening one end and for the better inner rotation orbit of having adapted of circular arc design, can the life of the first shell fragment of effectual extension. Optionally, the limiting arc-shaped grooves are provided with three limiting arc-shaped grooves which are adjacently arranged on the upper surface of the first elastic sheet side by side. Through adopting above-mentioned technical scheme, when the rubber band is pressed from both sides tightly by the clamping part, the above-mentioned spacing arc wall of the bottommost contact of inner because rubber band self has elasticity and has the reaction force to the clamping part, if do not have above-mentioned spacing arc wall, this kind of reaction force can produce the power of ordering about clamping part antiport, so above-mentioned spacing arc wall can effectively prevent clamping part antiport, and whole structure is more stable firm, and the security is higher. Optionally, the top of propping the head sets up the arc barb, the cooperation of arc barb prop the side of head and be formed with the main clamping groove, the medial surface of clamping end is provided with main arc arch, main arc arch adaptation in the main clamping groove. By adopting the technical scheme, the main clamping groove is additionally arranged on the supporting head, the main arc-shaped bulge is additionally arranged at the clamping end, the friction force between the rubber band and the rubber band clamping device is increased, and the rubber band is not easy to fall off from the rubber band clamping device. Optionally, the side of the supporting head is further provided with an auxiliary clamping groove in an arc-shaped design, the inner side surface of the clamping end is provided with an auxiliary arc-shaped protrusion, and the auxiliary arc-shaped protrusion is adapted to the auxiliary clamping groove. Through adopting above-mentioned technical scheme, add vice tight groove of clamp and add vice arc arch at the tight end of clamp on propping the head, further increase the frictional force between rubber band and above-mentioned rubber band clamping device, make rubber band and above-mentioned rubber band clamping device's firm in connection higher. Optionally, a pressing end is arranged on the outer side of the end portion, away from the inner end, of the clamping end, the pressing end is located outside the opening, and the top surface of the pressing end is a plane. Through adopting above-mentioned technical scheme, the tip outside of keeping away from inner at the clamping end sets up presses down the installation of end messenger's rubber band and dismantles more simple and conveniently, when disassembling the rubber band, needs the reverse rotation clamping part, presses down the end top surface and be the plane, and it can be more convenient that the finger presses above-mentioned plane. It is optional, including catapult main part and two sets of rubber band clamping device, the catapult main part is the Y shape, and is two sets of rubber band clamping device install respectively in the top both ends of catapult main part are through adopting above-mentioned technical scheme, and rubber band clamping device uses on the catapult, and the purpose of the quick installation dismantlement of rubber band can be realized to this catapult, and the rubber band loss is few, and catapult long service life, the catapult appearance is pleasing to the eye, and simple structure is practical. Optionally, the top both ends of catapult main part are provided with the spout respectively, the bottom of propping the head be provided with slide peg graft in the spout in, the spout with the cross-section of slider is the dovetail shape, the bottom of slider sets up the caulking groove, set up the second shell fragment that the level was arranged in the caulking groove, the tip of second shell fragment is provided with the bellying, the bottom of bellying extends the caulking groove the elastic restoring force of second shell fragment is down the bellying supports tightly the tank bottom of spout. Through adopting above-mentioned technical scheme, slide rail and spout sliding fit effect make the stay head install fast and dismantle in the catapult main part, and later stage maintenance is changed conveniently, sets up the caulking groove and provides stable mounted position for the second shell fragment, sets up the bellying on the second shell fragment and supports tight spout tank bottom and make the installation stability of stay head higher. Optionally, still including the subassembly of aiming of removable installation, aim the subassembly and include installation piece, mounting bar and sight, the installation piece is including vertical section and horizontal section, horizontal section fixed mounting in vertical section intermediate position department, the both sides of horizontal section are provided with the cockscomb structure edge, prop the head and keep away from opening one side is provided with main shell fragment joint groove, shell fragment joint groove adaptation in horizontal section structure, the vertical slidable mounting of mounting bar in on the vertical section, the mounting bar both sides are provided with the cockscomb structure edge, be provided with vice shell fragment joint groove in the middle of the vertical section, vice shell fragment joint groove adaptation in the mounting bar structure, the sight rotate install in the mounting bar top, just the sight axis of rotation with horizontal section direction is unanimous. Through adopting above-mentioned technical scheme, above-mentioned design installation piece can directly be formed by two square pieces connection, simple manufacture, simple to operate, and main shell fragment joint groove makes the simple installation of installation piece simple and direct, and vice shell fragment joint groove makes the simple installation of mounting bar simple and direct, and sight rotation cooperation mounting bar vertical slip can alternate the aiming point fast. In summary, the present application includes at least one of the following beneficial technical effects: after the clamping part is arranged on the supporting head, one end of the rubber band is stretched between the supporting head and the clamping end, the clamping part is rotated until the limiting arc-shaped groove on the first elastic sheet abuts against the inner end, and the purpose of firmly connecting the rubber band clamping device and the rubber band is achieved; when the unlocking is needed, the elastic inner end is rotated out of the limiting arc-shaped groove, so that the unlocking purpose is realized; compared with the clamping mode of fastening a rubber band clamping plate by a fastening screw, the rubber band clamping device has the advantages of simple structure and convenience in operation; 2 the installation piece of above-mentioned design can directly be formed by two square pieces connection, simple manufacture, simple to operate, and the main shell fragment joint groove makes the simple installation of installation piece simple and direct, and vice shell fragment joint groove makes the simple installation of mounting bar simple and direct, and sight rotary fit vertical slip of mounting bar can alternate the aiming point fast.

Drawings

Fig. 1 is a schematic structural view of a rubber band clamping device and a slingshot according to an embodiment of the present application. Fig. 2 is a schematic structural diagram of a rubber band clamping device according to an embodiment of the present application. Fig. 3 is a schematic structural diagram of a targeting assembly of an embodiment of the present application. Description of reference numerals: 1. supporting a head; 11. an arc barb; 13. a first spring plate; 131. a limiting arc-shaped groove; 14. a slide rail; 141. a second elastic sheet; 15. a slider; 16. the main elastic sheet is clamped in the groove; 2. a clamping portion; 21. a clamping end; 211. a main arc-shaped protrusion; 212. a secondary arc-shaped bulge; 213. a pressing end; 22. an inner end; 23. a rotating shaft; 3. a slingshot body; 4. a targeting assembly; 41. mounting blocks; 411. a longitudinal segment; 4111. the auxiliary elastic sheet is clamped in the groove; 412. a transverse segment; 42. mounting a bar; 43. a sight bead.

Detailed Description

The present application is described in further detail below with reference to figures 1-2. The embodiment of the application discloses rubber band clamping device and catapult. Referring to fig. 1 and 2, rubber band clamping device and catapult include a rubber band clamping device, including supporting head 1 and clamping part 2, one side of supporting head 1 is provided with the opening, the interior bottom of supporting head 1 sets up the activity groove, opening and activity groove communicate, clamping part 2 includes inner 22 and clamping end 21, clamping end 21 cooperation supporting head 1 is used for pressing from both sides tight fixed rubber band, clamping part 2 rotates and installs in supporting head 1 and has seted up the open-ended side, and clamping part 2's axis of rotation is unanimous with by the clamp rubber band width direction, inner 22 is the activity in the activity groove, partial clamping part 2 moves about in the opening, be provided with first shell fragment 13 in the activity groove, first shell fragment 13 is close to the surface of inner 22 and sets up a spacing arc wall 131 at least, spacing arc wall 131 adaptation is in inner 22, clamping part 2 has the trend of pressing from both sides tight rubber band under the elastic restoring force effect of first shell fragment 13. The clamping part 2 further comprises a rotating shaft 23, the rotating shaft 23 is located on the inner side of the clamping part 2 and located between the inner end 22 and the clamping end 21, and a rotating groove matched with the rotating shaft 23 is formed in the side face of the support head 1. The rotary groove provides a fixed mounting position for the rotary shaft 23, and the rotary shaft 23 is arranged between the inner end 22 and the clamping end 21, so that the clamping part 2 and the inner end 22 can synchronously rotate. The first elastic sheet 13 is horizontally arranged in the movable groove, and one end of the first elastic sheet 13 close to the opening is designed to be a circular arc. The limiting arc-shaped grooves 131 are provided with three limiting arc-shaped grooves which are adjacently arranged on the upper surface of the first elastic sheet 13 side by side. Along with the rotation that clamping part 2 does not stop, plastic deformation takes place easily in the long-time butt inner 22 of first shell fragment 13, leads to first shell fragment 13 elasticity variation, makes first shell fragment 13 life-span shorten, and first shell fragment 13 is close to opening one end and for the better rotatory orbit that has adapted to inner 22 of circular arc design, can the effectual life who prolongs first shell fragment 13. When the rubber band is clamped tightly by clamping part 2, the bottommost portion of inner 22 contacts above-mentioned spacing arc-shaped groove 131, because the rubber band itself has elasticity and has a reaction force to clamping part 2, if do not have above-mentioned spacing arc-shaped groove 131, this kind of reaction force can produce the power of ordering about clamping part 2 antiport, so above-mentioned spacing arc-shaped groove 131 can effectively prevent clamping part 2 antiport, and whole structure is more stable firm, and the security is higher. The top of propping head 1 sets up arc barb 11, and the side that arc barb 11 cooperation propped head 1 is formed with main clamping groove, and the medial surface of clamping end 21 is provided with main arc arch 211, and main arc arch 211 adaptation is in main clamping groove. The side of the supporting head 1 is also provided with an auxiliary clamping groove in a circular arc design, the inner side surface of the clamping end 21 is provided with an auxiliary arc-shaped protrusion 212, the auxiliary arc-shaped protrusion 212 is adapted to the auxiliary clamping groove, and a certain gap is reserved between the main clamping groove and the auxiliary clamping groove in a state that the rubber band is not clamped. The main clamping groove is additionally arranged on the supporting head 1, the main arc-shaped bulge 211 is additionally arranged at the clamping end 21, and the friction force between the rubber band and the rubber band clamping device is increased, so that the rubber band is not easy to fall off from the rubber band clamping device. Set up vice tight groove of clamp and set up vice arc arch 212 at tight end 21 of clamp on propping first 1, further increase the frictional force between rubber band and above-mentioned rubber band clamping device, make rubber band and above-mentioned rubber band clamping device's firm in connection higher, main tight groove of clamp and vice tight groove of clamp leave the space after pressing from both sides tight rubber band, under the state of dragging the rubber band repeatedly, the rubber band can not be broken by the clamp, the life of extension rubber band. The pressing end 213 is disposed outside the end of the clamping end 21 away from the inner end 22, the pressing end 213 is located outside the opening, and the top surface of the pressing end 213 is disposed as a plane. The pressing end 213 is arranged on the outer side of the end part of the clamping end 21 far away from the inner end 22, so that the rubber band can be more easily and conveniently assembled and disassembled, when the rubber band is disassembled, the clamping part 2 needs to be rotated reversely, the top surface of the pressing end 213 is a plane, and the finger can press the plane more conveniently. Including catapult main part 3 and two sets of rubber band clamping device, catapult main part 3 is the Y shape, and two sets of rubber band clamping device install respectively in the top both ends of catapult main part 3. Rubber band clamping device uses on the catapult, and this catapult can realize the purpose of the quick installation dismantlement of rubber band, and the rubber band loss is few, and catapult long service life, catapult appearance are pleasing to the eye, and simple structure is practical. The top both ends of catapult main part 3 are provided with the spout respectively, and the bottom of brace 1 is provided with the slider 15 of slip grafting in the spout, and the cross-section of spout and slider 15 is the dovetail shape, and the bottom of slider 15 sets up the caulking groove, sets up the second shell fragment 141 that the level was arranged in the caulking groove, and the tip of second shell fragment 141 is provided with the bellying, and the caulking groove is extended to the bottom of bellying, and the bellying supports the tank bottom of tight spout under the elastic restoring force effect of second shell fragment 141. The mounting position can be exchanged to slide rail 14 and spout, and slide rail 14 and spout sliding fit effect make and prop head 1 and install the dismantlement fast on catapult main part 3, and later stage maintenance is changed conveniently, sets up the caulking groove and provides stable mounted position for second shell fragment 141, sets up the bellying on the second shell fragment 141 and supports tight spout tank bottom and make the installation stability who props head 1 higher. Referring to fig. 1 and 3, still aim subassembly 4 including removable installation, aim subassembly 4 including installation piece 41, mounting bar 42 and sight 43, installation piece 41 includes vertical section 411 and horizontal section 412, horizontal section 412 fixed mounting is in vertical section 411 intermediate position department, the both sides of horizontal section 412 are provided with the cockscomb structure edge, prop head 1 and keep away from opening one side and be provided with main shell fragment joint groove 16, shell fragment joint groove adaptation in horizontal section 412 structure, the vertical slidable mounting of mounting bar 42 is on vertical section 411, the mounting bar 42 both sides are provided with the cockscomb structure edge, be provided with vice shell fragment joint groove 4111 in the middle of vertical section 411, vice shell fragment joint groove 4111 is adapted in mounting bar 42 structure, sight 43 rotates and installs in mounting bar 42 top, and sight 43 axis of rotation is unanimous with horizontal section 412 direction, the rotation angle of sight is each 16 from top to bottom. Above-mentioned design installation piece 41 integrated into one piece, simple manufacture, simple to operate, shell fragment joint groove make installation piece 41 and mounting bar 42's simple to operate swift, and sight 43 rotatory cooperation mounting bar 42 vertical slip can alternate aiming point fast. The implementation principle of the clamping device for the first elastic sheet 13 in the embodiment of the application is as follows: after the clamping part 2 is arranged on the supporting head 1, one end of the rubber band is stretched between the supporting head 1 and the clamping end 21, the clamping part 2 is rotated clockwise until the limiting arc-shaped groove 131 on the first elastic sheet 13 abuts against the inner end 22, and the purpose of firmly connecting the rubber band clamping device with the rubber band is achieved; when unlocking is needed, the elastic inner end 22 is rotated out of the limiting arc-shaped groove 131 anticlockwise so as to achieve the purpose of unlocking; the rubber band clamping device is simple in structure and convenient to operate, and compared with a clamping mode of fastening a rubber band clamping plate by a fastening screw. The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a rubber band clamping device which characterized in that: comprises a supporting head (1) and a clamping part (2), wherein one side of the supporting head (1) is provided with an opening, the inner bottom of the supporting head (1) is provided with a movable groove, the opening is communicated with the movable groove, the clamping part (2) comprises an inner end (22) and a clamping end (21), the clamping end (21) is matched with the supporting head (1) and is used for clamping a fixed rubber band, the clamping part (2) is rotatably arranged on the side surface of the supporting head (1) with the opening, the rotating axis of the clamping part (2) is consistent with the width direction of the clamped rubber band, the inner end (22) moves in the movable groove, part of the clamping part (2) moves in the opening, a first elastic sheet (13) is arranged in the movable groove, the surface of the first elastic sheet (13) close to the inner end (22) is at least provided with a limiting arc-shaped groove (131), the limiting arc-shaped groove (131) is matched with the inner end (22), and the clamping part (2) has the tendency of clamping a rubber band under the action of the elastic restoring force of the first elastic sheet (13).

2. The tendon clamping device of claim 1, wherein: clamping part (2) still include rotation axis (23), rotation axis (23) are located clamping part (2) inboard just is located between inner (22) and the clamp end (21), prop the side of head (1) and seted up with rotation axis (23) looks adaptation's rotation groove.

3. The tendon clamping device of claim 1, wherein: the first elastic sheet (13) is horizontally arranged in the movable groove, and one end, close to the opening, of the first elastic sheet (13) is designed to be a circular arc.

4. The tendon clamping device of claim 3, wherein: the limiting arc-shaped grooves (131) are three and are adjacently arranged on the upper surface of the first elastic sheet (13) side by side.

5. The tendon clamping device of claim 1, wherein: prop the top of head (1) and set up arc barb (11), arc barb (11) cooperation prop the side of head (1) and be formed with the main clamping groove, the medial surface of pressing from both sides tight end (21) is provided with main arc arch (211), main arc arch (211) adaptation in the main clamping groove.

6. The tendon clamping device of claim 5, wherein: the side of the support head (1) is also provided with an auxiliary clamping groove in a circular arc design, the inner side surface of the clamping end (21) is provided with an auxiliary arc protrusion (212), and the auxiliary arc protrusion (212) is adapted to the auxiliary clamping groove.

7. The tendon clamping device of claim 1, wherein: the outer side of the end part, far away from the inner end (22), of the clamping end (21) is provided with a pressing end (213), the pressing end (213) is located outside the opening, and the top surface of the pressing end (213) is a plane.

8. A slingshot, characterized in that: comprising a slingshot body (3) and two sets of rubber band clamping devices according to any one of claims 1-7, wherein the slingshot body (3) is Y-shaped, and the two sets of rubber band clamping devices are respectively arranged at two ends of the top of the slingshot body (3).

9. The slingshot of claim 8, wherein: the top both ends of catapult main part (3) are provided with the spout respectively, prop the bottom of head (1) be provided with slide peg graft in slider (15) in the spout, the spout with the cross-section of slider (15) is the dovetail groove shape, the bottom of slider (15) sets up the caulking groove, set up second shell fragment (141) that the level was arranged in the caulking groove, the tip of second shell fragment (141) is provided with the bellying, the bottom of bellying extends the caulking groove under the elastic restoring force effect of second shell fragment (141) the bellying supports tightly the tank bottom of spout.

10. The slingshot of claim 8, wherein: the sighting device is characterized by further comprising a sighting assembly (4) which is detachably mounted, wherein the sighting assembly (4) comprises a mounting block (41), a mounting bar (42) and a sight bead (43), the mounting block (41) comprises a longitudinal section (411) and a transverse section (412), the transverse section (412) is fixedly mounted in the middle position of the longitudinal section (411), saw-toothed edges are arranged on two sides of the transverse section (412), a main elastic sheet clamping groove (16) is formed in one side, far away from the opening, of the supporting head (1), the elastic sheet clamping groove is adaptive to the structure of the transverse section (412), the mounting bar (42) is vertically slidably mounted on the longitudinal section (411), saw-toothed edges are arranged on two sides of the mounting bar (42), an auxiliary elastic sheet clamping groove (4111) is formed in the middle of the longitudinal section (411), and the auxiliary elastic sheet clamping groove (4111) is adaptive to the structure of the mounting bar (42), the sight (43) is rotatably mounted on the top of the mounting bar (42), and the rotation axis of the sight (43) is in the same direction with the transverse section (412).

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