Synchronous rebound triggering device

Abstract

The utility model discloses a synchronous rebounding triggering device which comprises a rebounding device and an unlocking device. The rebounding device comprises a base, a rebounding mechanism, a locking mechanism and a triggering mechanism; the rebound mechanism comprises a first pushing piece, a second pushing piece and a first elastic piece; the locking mechanism comprises a first swing arm and a locking assembly. The first swing arm is hinged to the first pushing piece, and a hanging needle is arranged at the movable end of the first swing arm. The base is provided with a third sliding groove for containing a hanging needle. The third sliding groove comprises a force storage section, a locking section, a releasing section and a returning section. The locking assembly is used for locking the hanging needle moving into the locking section; the trigger mechanism comprises a second swing arm, the upper end of the second swing arm extends out of the base, and the lower end of the second swing arm forms an unlocking end used for driving the locking assembly to move so as to unlock the hanging needle. According to the synchronous rebound triggering device, the rebound device can be promoted to rebound and trigger by promoting the unlocking device and the second swing arm to extrude.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bounce device, more particularly to a synchronous bounce trigger device. BACKGROUND

[0002] At present, drawers are used in many furniture, and the two sides of the drawer are installed on guide grooves, and the drawer is driven to move on the guide groove by the user manually applying pulling force and pushing force to the drawer, so as to open or close the drawer. With the continuous development of science and technology, the existing drawer has more and more functions, for example, a damping buffer is added on the guide groove, which can avoid the drawer from colliding with the furniture due to inertia when closing the drawer, thereby protecting the drawer and the furniture and reducing noise. However, since the current drawer needs to be pulled out and pushed in manually, the drawer of this structure cannot realize the function of automatically ejecting the drawer when pressing the drawer, which makes the function of the drawer single and extremely inconvenient to use, and at the same time, it is time-consuming and laborious to operate, which seriously affects the use experience and convenience of the drawer. SUMMARY

[0003] The utility model discloses in order to overcome the insufficient of prior art, provide a synchronous bounce trigger device, the synchronous bounce trigger device can make the drawer automatic ejection through the mode of pressing the drawer, operation is more simple and convenient.

[0004] The technical scheme of the utility model solves the above technical problem:

[0005] A synchronous bounce trigger device, comprising a bounce device and an unlocker for driving the bounce device to work, wherein,

[0006] The bounce device comprises a base, a bounce mechanism arranged on the base, a locking mechanism for locking the bounce mechanism, and a trigger mechanism for triggering the locking of the bounce mechanism by the locking mechanism under the driving of the unlocker, wherein,

[0007] The bounce mechanism comprises a first pusher, a second pusher and a first elastic member, wherein the first pusher is slidingly connected to the base; the second pusher is slidingly connected to the base; one end of the first elastic member is connected to the base, and the other end is connected to the second pusher; the first pusher, the second pusher and the second pusher are connected to the base through a gear and rack transmission mechanism respectively;

[0008] The locking mechanism comprises a first swing arm and a locking assembly arranged on the first pusher, wherein the first swing arm is hinged on the first pusher, a hanging needle is arranged on the active end of the first swing arm; the base is provided with a third sliding groove at the position corresponding to the hanging needle, the third sliding groove comprises a force storage section, a locking section, a releasing section and a returning section which are communicated in sequence; the locking assembly is used for locking the hanging needle which moves into the locking section;

[0009] The trigger mechanism comprises a second swing arm which is rotatably connected on the base, the upper end of the second swing arm extends out of the base; the lower end of the second swing arm constitutes an unlocking end which is used for driving the locking assembly to move to unlock the hanging needle;

[0010] When it is needed to unlock the locking mechanism to the rebound mechanism, the unlocking device promotes the upper end of the second swing arm to rotate, and the lower end of the second swing arm drives the locking assembly to move to unlock the hanging needle.

[0011] Preferably, the locking assembly comprises a locking block which is slidably connected on the base; a second elastic member is arranged between the locking block and the base, one end of the second elastic member is connected with the locking block, and the other end is connected with the base; the elastic force of the second elastic member promotes the locking block to move inward to block the entrance of the returning section.

[0012] Preferably, a groove is arranged on the locking block, the groove constitutes the releasing section; a guide block is arranged on the base which is used for guiding the hanging needle located in the groove to enter the returning section; the upper end of the guide block is provided with an arc-shaped guide part; a first avoiding groove is arranged on the locking block which is used for avoiding the guide block.

[0013] Preferably, a second avoiding groove is arranged on the base at the position corresponding to the second swing arm; the lower end of the second swing arm extends into the locking block, and a first recess is arranged on the locking block at the position corresponding to the lower end of the second swing arm.

[0014] Preferably, the trigger mechanism further comprises a protection member which is used for giving the second swing arm an initial pressure to promote the second swing arm to rotate counterclockwise, the protection member is slidably connected on the base; a third spring is arranged between the protection member and the base, the elastic force of the third spring promotes the protection member to move towards the second swing arm.

[0015] Preferably, a synchronous mechanism is further comprised, the synchronous mechanism comprises a rotating shaft which is rotatably connected on the base and a convex tooth which is arranged on the rotating shaft, wherein one end of the rotating shaft extends out of the base; a second recess is arranged on the locking block which cooperates with the convex tooth.

[0016] Preferably, a limiting piece is arranged between the reset section and the force storage section, the limiting piece is mounted on the base, the limiting piece comprises a mounting portion and an elastic baffle arranged on the mounting portion, the elastic baffle extends horizontally, the upper end of the elastic baffle is flush with the bottom of the force storage section, and the free end of the elastic baffle blocks the outlet of the reset section.

[0017] Preferably, the gear and rack transmission mechanism comprises a first rack arranged at the bottom of the first pusher, a gear arranged on the second pusher and a second rack arranged on the base, the first rack and the second rack are arranged in parallel and extend along the length direction of the base, and the upper and lower sides of the gear are engaged with the first rack and the second rack, respectively.

[0018] Preferably, a first mounting groove extending vertically is arranged on the first swing arm, a wedge-shaped block is mounted in the first mounting groove, a first spring is arranged between the wedge-shaped block and the bottom of the first mounting groove, and the elastic force of the first spring promotes upward movement of the wedge-shaped block, correspondingly, a first limiting portion for preventing the wedge-shaped block from being pulled out of the first mounting groove is arranged on the wedge-shaped block, a first limiting groove extending vertically is arranged on the first swing arm at a position corresponding to the first limiting portion, and the side surface of the wedge-shaped block close to the second pusher is a vertical surface, and the side surface of the wedge-shaped block away from the second pusher is an inclined surface.

[0019] Preferably, a reverse pushing assembly is arranged at the upper end of the second pusher away from the first pusher, the reverse pushing assembly comprises a reverse pushing block, a second mounting groove for mounting the reverse pushing block is arranged on the second pusher, the reverse pushing block is mounted in the second mounting groove, a second spring is arranged between the reverse pushing block and the bottom of the second mounting groove, the elastic force of the second spring promotes outward movement of the reverse pushing block, correspondingly, a second limiting portion for preventing the reverse pushing block from being pulled out of the second mounting groove is arranged on the reverse pushing block, and a second limiting groove extending horizontally is arranged on the second pusher at a position corresponding to the second limiting portion.

[0020] Compared with the prior art, the synchronous rebound trigger device has the following advantages:

[0021] 1. The synchronous rebound trigger device is triggered by relative movement between the unlocking device and the rebound device, the rebound device is in a locking state and a triggering state, the unlocking device is in contact with the trigger end in the trigger mechanism to trigger the rebound device by continuously pushing the unlocking device when the rebound device is in the locking state, and the second pusher pushes the unlocking device to move reversely when the rebound device is triggered.

[0022] 2. The synchronous rebound trigger device of the utility model, through the unblocker, the upper end of the second swing arm is rotated, the lower end of the second swing arm drives the locking assembly to move to realize unlocking the hanging needle.

[0023] 3. The first pusher and the second pusher in the synchronous rebound trigger device of the utility model, the second pusher and the base are all provided with gear and rack transmission mechanism, through the gear and rack transmission mechanism, the first pusher and the second pusher can be driven to move synchronously.

[0024] 4. The synchronous rebound trigger device of the utility model can make the drawer automatically pop out by pressing the drawer, and the operation is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the structure diagram of the synchronous rebound trigger device of the utility model.

[0026] Figure 2 It is the explosion view of the synchronous rebound trigger device of the utility model.

[0027] Figure 3 It is the perspective view of the first pusher, the second pusher, the elastic adjusting mechanism and the first swing arm.

[0028] Figure 4 It is the perspective view of the locking assembly, the trigger mechanism and the synchronous mechanism.

[0029] Figure 5 It is the schematic view of the hanging needle from the force storage section to the locking section.

[0030] Figure 6 It is the schematic view of the hanging needle in the trigger section.

[0031] Figure 7 It is the schematic view of the hanging needle from the trigger section to the reset section.

[0032] Figures 8-12 It is the flowchart of the rebounder from locking to triggering, wherein, Figure 8 It is the schematic view of the rebounder about to enter the locking state; Figure 9 It is the schematic view of the rebounder entering the locking state; Figure 10 It is the schematic view of the rebounder about to be triggered; Figure 11 It is the schematic view of the rebounder being triggered; Figure 12 It is the schematic view of the rebounder after being triggered.

[0033] Figure 13 It is the position schematic view of the elastic adjusting mechanism before adjusting the first elastic member.

[0034] Figure 14A schematic view of the position of the first elastic member after the elastic adjusting mechanism is adjusted. DETAILED DESCRIPTION

[0035] The utility model will be described in further detail below in combination with the embodiments and drawings, but the embodiments of the utility model are not limited thereto.

[0036] Embodiment 1

[0037] Referring to Figures 1-14 , the synchronous rebound trigger device of the utility model, including rebounder B and the unlocking device A for triggering the rebounder B work, in this embodiment, the unlocking device A and the rebounder B are installed on two relative motion objects respectively, for example, the unlocking device A is installed on the drawer, and the rebounder B is installed on the cabinet body, or the rebounder B is installed on the drawer, and the unlocking device A is installed on the cabinet body.

[0038] Referring to Figures 1-14 , the bottom of the unlocking device A is provided with the first driving part 1A and the second driving part 2A at both ends respectively.

[0039] Referring to Figures 1-14 , the rebounder B includes the base 1, the rebound mechanism arranged on the base 1, the locking mechanism for locking the rebound mechanism and the trigger mechanism for unlocking the locking of the locking mechanism under the driving of the unlocking device A.

[0040] Referring to Figures 1-14 , the rebound mechanism includes the first pusher 2, the second pusher 3 and the first elastic member 7.

[0041] Referring to Figures 1-14 , the first pusher 2 is slidably connected on the base 1, and the base 1 is provided with the first sliding groove at the corresponding position of the first pusher 2; the first sliding groove extends along the length direction of the base 1; the first pusher 2 can move linearly along the first sliding groove.

[0042] Referring to Figures 1-14 , the second pusher 3 is slidably connected on the base 1, and the base 1 is provided with the second sliding groove at the corresponding position of the second pusher 3; the second sliding groove extends along the length direction of the base 1; the second pusher 3 can move linearly along the second sliding groove.

[0043] Referring to Figures 1-14, the upper end of the second pusher 3 is provided with a reverse pushing assembly at a position away from the first pusher 2, the reverse pushing assembly comprises a reverse pushing block 302; the second pusher 3 is provided with a second mounting groove for mounting the reverse pushing block 302, the reverse pushing block 302 is mounted in the second mounting groove, and the reverse pushing block 302 is provided with a second spring 303 at the bottom of the second mounting groove; the elastic force of the second spring 303 promotes the outward movement of the reverse pushing block 302; correspondingly, the reverse pushing block 302 is provided with a second limiting portion 304 for preventing the reverse pushing block 302 from being pulled out of the second mounting groove; the second pusher 3 is provided with a horizontally extending second limiting groove at a position corresponding to the second limiting portion 304; when the reverse rebounder B is in the locked state, it is necessary to trigger the reverse rebounder B, so it is necessary to promote the first driving portion 1A of the unlocking device A to be removed from the second swing arm 13 and promote the second swing arm 13 to rotate clockwise, and in this process, the second driving portion 2A of the unlocking device A will be in contact with the reverse pushing block 302, and the second spring 303 can play a buffering role.

[0044] Referring to Figures 1-14 , one end of the first elastic member 7 is connected with the base 1, and the other end is connected with the second pusher 3; the first pusher 2, the second pusher 3 and the second pusher 3 and the base 1 are connected through a gear and rack transmission mechanism respectively; the gear and rack transmission mechanism comprises a first rack 201 arranged at the bottom of the first pusher 2, a gear 6 arranged on the second pusher 3 and a second rack 9 arranged on the base 1, wherein the first rack 201 and the second rack 9 are arranged in parallel and extend along the length direction of the base 1; the upper and lower sides of the gear 6 are engaged with the first rack 201 and the second rack 9 respectively.

[0045] Through the above arrangement, when the first pusher 2 moves, the first rack 201 at the bottom of the first pusher 2 drives the gear 6 on the second pusher 3 to rotate, and at the same time the gear 6 on the second pusher 3 rotates, the gear 6 also climbs on the second rack 9 on the base 1; so as to ensure that the first pusher 2 and the second pusher 3 move synchronously. After the reverse rebounder B is triggered, the first elastic member 7 drives the second pusher 3 to move reversely, and in the process of reverse movement of the second pusher 3, the gear 6 walks on the second rack 9, and at the same time the rotation of the gear 6 also drives the first rack 201 on the first pusher 2 to move linearly, so as to promote the first pusher 2 to move synchronously with the second pusher 3.

[0046] Referring to Figures 1-14The locking mechanism comprises a first swing arm 4 arranged on the first pusher 2 and a locking assembly, wherein the first swing arm 4 is hinged on the first pusher 2, and a hanging needle 5 is arranged on the movable end of the first swing arm 4; the base 1 is provided with a third sliding groove at a position corresponding to the hanging needle 5, and the third sliding groove comprises a force storage section 101, a locking section 102, a releasing section 103 and a returning section 104 which are sequentially communicated; when the hanging needle 5 moves to the locking section 102, the locking assembly can lock the hanging needle 5.

[0047] In the embodiment, a limiting piece 10 is further arranged between the returning section 104 and the force storage section 101, and the limiting piece 10 is installed on the base 1 and comprises an installation portion and an elastic baffle arranged on the installation portion, wherein the elastic baffle extends horizontally, and the upper end of the elastic baffle is flush with the bottom of the force storage section 101; the free end of the elastic baffle is blocked at the outlet of the returning section 104; during the movement of the hanging needle 5 from the force storage section 101 to the locking section 102, the hanging needle 5 cannot enter the returning section 104 from the force storage section 101 due to the blockage of the elastic baffle; only when the hanging needle 5 is in the returning section 104, the hanging needle 5 can move along the returning section 104 under the elastic force of the first elastic piece 7, and then enter the force storage section 101 after the elastic baffle is pushed open.

[0048] Referring to Figures 1-14 A first installation groove extending vertically is arranged on the body 401 of the first swing arm 4, and a wedge-shaped block 402 is installed in the first installation groove, wherein a first spring 404 is arranged between the wedge-shaped block 402 and the bottom of the first installation groove, and the elastic force of the first spring 404 promotes the upward movement of the wedge-shaped block 402; correspondingly, a first limiting portion 403 for preventing the wedge-shaped block 402 from being pulled out of the first installation groove is arranged on the wedge-shaped block 402; a first limiting groove extending vertically is arranged on the first swing arm 4 at a position corresponding to the first limiting portion 403; the side surface of the wedge-shaped block 402 close to the second pusher 3 is a vertical surface, and the side surface of the wedge-shaped block 402 away from the second pusher 3 is an inclined surface; when the first driving portion 1A of the unlocker A is in contact with the vertical surface of the wedge-shaped block 402, the movement of the unlocker A will drive the movement of the wedge-shaped block 402 and the first pusher 2; when the first driving portion 1A of the unlocker A is in contact with the inclined surface of the wedge-shaped block 402, the movement of the unlocker A (along the extension direction of the inclined surface) will promote the downward movement of the wedge-shaped block 402, so as to make the first driving portion 1A of the unlocker A pass over the wedge-shaped block 402.

[0049] Referring to Figures 1-14The locking assembly comprises a locking block 11; the locking block 11 is slidingly connected to the base 1, and the base 1 is provided with a fourth sliding groove at the corresponding position of the locking block 11; a third limiting part 112 for limiting the movement stroke of the locking block 11 is arranged in the fourth sliding groove, and the two groups of third limiting parts 112 are arranged on the left and right sides of the locking block 11 respectively; a second elastic member 12 is arranged between the locking block 11 and the base 1, one end of the second elastic member 12 is connected to the locking block 11, and the other end is connected to the base 1; the elastic force of the second elastic member 12 promotes the inward movement of the locking block 11 to block the entrance of the return section 104

[0050] Referring to Figures 1-14 A groove 111 is arranged on the locking block 11, and the groove 111 constitutes the release section 103; a guide block for guiding the hanging needle 5 in the groove 111 to enter the return section 104 is arranged on the base 1, and an arc-shaped guide part is arranged at the upper end of the guide block; a first avoiding groove for avoiding the guide block is arranged on the locking block 11.

[0051] Referring to Figures 1-14 The trigger mechanism comprises a second swing arm 13, the second swing arm 13 is rotationally connected to the base 1, the upper end of the second swing arm 13 extends out of the base 1, and the base 1 is provided with a second avoiding groove at the corresponding position of the second swing arm 13; the lower end of the second swing arm 13 extends into the locking block 11, and the locking block 11 is provided with a first recess 113 at the corresponding position of the lower end of the second swing arm 13.

[0052] Referring to Figures 1-14 The trigger mechanism further comprises a protection member 14 for giving the second swing arm 13 an initial pressure to promote the counterclockwise rotation of the second swing arm 13, the protection member 14 is slidingly connected to the base 1, and the base 1 is provided with a fifth sliding groove at the corresponding position of the protection member 14; a third spring 15 is arranged between the protection member 14 and the base 1, and the elastic force of the third spring 15 promotes the movement of the protection member 14 towards the second swing arm 13, so as to realize the application of the initial pressure to the second swing arm 13; in this way, when the unlocking device A has sufficient pressure (the pressure is greater than the initial pressure, that is, the elastic force of the third spring 15), the unlocking device A can drive the second swing arm 13 to rotate clockwise to overcome the elastic force of the third spring 15, so as to promote the outward movement of the locking block 11, and then realize the unlocking of the rebound device B; therefore, by arranging the protection member 14, the rebound device B can be prevented from being triggered by mistake.

[0053] Referring to Figures 1-14The synchronous rebound trigger device further comprises a synchronous mechanism, the synchronous mechanism comprises a rotating shaft 16 rotatably connected to the base 1 and a convex tooth 161 arranged on the rotating shaft 16, wherein one end of the rotating shaft 16 extends out of the base 1; and a second groove 114 matched with the convex tooth 161 is arranged on the locking block 11;

[0054] When the second swing arm 13 is driven to rotate clockwise by the unlocker A, the second swing arm 13 drives the locking block 11 to move outward (i.e. to move leftward), and when the locking block 11 moves, the convex tooth 161 is inevitably driven to move, thereby driving the rotating shaft 16 to rotate, and the part of the rotating shaft 16 extending out of the base 1 can be connected with the rotating shaft 16 in the rebounder B on the other side of the drawer through a synchronous shaft, so that the two groups of rebounders B can be triggered to unlock at the same time, and the drawer can be smoothly popped out.

[0055] Referring to Figures 1-14 The first elastic member 7 and the second elastic member 12 in the embodiment are both tension springs.

[0056] Referring to Example 2 The working principle of the synchronous rebound trigger device is as follows:

[0057] When working, the unlocker A and the rebounder B move oppositely, in the process, the unlocker A first contacts the vertical surface of the wedge-shaped block 402 on the first pusher 2, thereby driving the first pusher 2 to move inward; since the bottom of the first pusher 2 is connected with the second pusher 3 through a gear and rack transmission mechanism, in the process that the first pusher 2 moves inward, the first rack 201 at the bottom of the first pusher 2 drives the gear 6 on the second pusher 3 to rotate, and the second pusher 3 is also connected with the base 1 through the gear and rack transmission mechanism, therefore, the gear 6 on the second pusher 3 rotates and moves on the second rack 9, and at the same time, the second pusher 3 also moves inward synchronously with the first pusher 2; in the process, the hanging needle 5 on the first swing arm 4 in the first pusher 2 moves in the force storage section 101.

[0058] When the hanging needle 5 on the first swing arm 4 in the first pusher 2 moves from the force storage section 101 into the locking section 102, the first swing arm 4 rotates clockwise, so that the wedge-shaped block 402 on the first swing arm 4 enters into the base 1, thereby enabling the unlocker A to continue to move inward beyond the wedge-shaped block 402; since the hanging needle 5 is located in the locking section 102, the locking assembly can lock the hanging needle 5.

[0059] When the rebounder B needs to be triggered to rebound, the unlocker A needs to be prompted to continue to move inward, so that the first driving part 1A of the unlocker A is in contact with the second swing arm 13, and the second driving part 2A of the unlocker A is in contact with the anti-push block 302 in the anti-push assembly. With the continuous inward movement of the unlocker A, the first driving part 1A in the unlocker A prompts the second swing arm 13 to rotate clockwise, and the second driving part 2A of the unlocker A compresses the anti-push block 302. In this process, the second swing arm 13 prompts the protection piece 14 to move inward against the elastic force of the third spring 15. With the clockwise rotation of the second swing arm 13, the lower end of the second swing arm 13 prompts the locking block 11 to move outward against the elastic force of the second elastic piece 12, so that the release section 103 and the return section 104 are communicated, the hanging needle 5 enters the release section 103, and under the elastic force of the first elastic piece 7, the second push piece 3 moves outward and drives the first push piece 2 to move outward through the gear and rack transmission mechanism, so that the hanging needle 5 on the first swing arm 4 enters the return section 104 and enters the force storage section 101 again along the return section 104 and moves outward along the force storage section 101. In the process of moving outward, the second push piece 3 drives the unlocker A to move outward.

[0060] When the hanging needle 5 moves outward to the starting position of the force storage section 101, the unlocker A can continue to move outward under the action of inertia or external force. When the first driving part 1A in the unlocker A is in contact with the inclined surface in the wedge-shaped block 402 on the first swing arm 4, the first driving part 1A in the unlocker A drives the wedge-shaped block 402 to move downward, so that the first driving part 1A in the rebounder B can continue to move outward after passing the wedge-shaped block 402.

[0061] With the separation of the unlocker A and the second swing arm 13, the protection piece 14 moves outward under the elastic force of the third spring 15 to prompt the second swing arm 13 to rotate counterclockwise, and the counterclockwise rotation of the second swing arm 13 drives the locking block 11 to move inward, until the locking block 11 is in contact with the third limiting part 112 on the right side, and the locking block 11 stops moving. At this time, the locking block 11 blocks the entrance of the return section 104 again.

[0062] Figures 1-14

[0063] Referring to Figures 1-14 The difference between the embodiment and embodiment 1 is that:

[0064] The synchronous rebound trigger device further comprises a elastic force adjusting mechanism 17 for adjusting the elastic force of the first elastic member 7, wherein the elastic force adjusting mechanism 17 comprises a dial block 171; the dial block 171 is slidingly connected to the base 1, and the base 1 is provided with a sixth sliding groove at a position corresponding to the dial block 171; wherein the dial block 171 is provided with an elastic dial piece 172, and the elastic dial piece 172 is obliquely arranged; the base 1 is provided with a seventh sliding groove at a position corresponding to the elastic dial piece 172, and the seventh sliding groove is provided with at least one lock tongue 18 arranged along the extension direction of the seventh sliding groove; and one end of the first elastic member 7 is mounted on the dial block 171.

[0065] Referring to Figures 1-14 , the dial block 171 is provided with an unlocking arm 173 for driving the dial piece to swing upward to avoid the lock tongue 18, wherein the unlocking arm 173 is located at the bottom of the dial piece and is mounted on the dial block 171 through a flexible hinge; by dialing the unlocking arm 173 upward, the elastic dial piece 172 can be driven to move upward, so that the elastic dial piece 172 and the lock tongue 18 are separated.

[0066] In the embodiment, the part connected with the dial block 171 in the unlocking arm 173 is an elastic part, and the elastic part constitutes the rotating connection structure.

[0067] Referring to Figures 1-14 , the base 1 is provided with a turning wheel 8, one end of the first elastic member 7 is mounted on the second pushing member 3, and the other end is connected with the dial block 171 after passing through the turning wheel 8.

[0068] Referring to Figures 1-14 , the lock tongue 18 is two groups, and the two groups of lock tongues 18 are arranged side by side; each group of lock tongues 18 is provided with an inclined part and a vertical part.

[0069] Referring to ​ , the working principle of the elastic force adjusting mechanism in the embodiment is as follows:

[0070] When it is needed to increase the elastic force of the first elastic member 7, the push block 171 is pushed inward (i.e. rightward), so that the push block 171 moves inward, when the elastic push piece 172 on the push block 171 contacts with the inclined part of the lock tongue 18, the inclined part of the lock tongue 18 will promote the elastic push piece 172 of the push block 171 to move upward, so that the elastic push piece 172 moves upward to pass the lock tongue 18; after the push block 171 is pushed to the appropriate position, the push block 171 is released, so that the elastic push piece 172 in the push block 171 contacts with the vertical part of the corresponding lock tongue 18, so as to realize the locking of the push block 171, so as to realize the lengthening of the first elastic member 7, and further realize the increasing adjustment of the elastic force of the first elastic member 7.

[0071] When it is needed to decrease the elastic force of the first elastic member 7, the unlocking arm 173 is pushed upward, so that the unlocking arm 173 lifts the elastic push piece 172 upward, so that the elastic push piece 172 is separated from the lock tongue 18, so that the push block 171 can move outward after passing the lock tongue 18, so as to shorten the length of the first elastic member 7, so as to decrease the elastic force of the first elastic member 7.

[0072] The above is the preferred embodiment of the utility model, but the embodiment of the utility model is not limited by the above content, any change, modification, replacement, combination, simplification made without departing from the spirit and principle of the utility model, should be equivalent replacement mode, all are included in the protection scope of the utility model.

Claims

1. A synchronous bounce trigger device, characterized by, The device comprises a rebounder and an unlocking device for driving the rebounder to work, wherein, the rebounder comprises a base, a rebounding mechanism arranged on the base, a locking mechanism for locking the rebounding mechanism, and a triggering mechanism for triggering the locking mechanism to unlock the locking of the rebounding mechanism under the driving of the unlocking device, wherein, the rebounding mechanism comprises a first pusher, a second pusher and a first elastic member, wherein the first pusher is slidingly connected to the base, the second pusher is slidingly connected to the base, one end of the first elastic member is connected to the base and the other end is connected to the second pusher, and the first pusher, the second pusher and the second pusher are connected to the base through a gear and rack transmission mechanism respectively; the locking mechanism comprises a first swing arm arranged on the first pusher and a locking assembly, wherein the first swing arm is hinged to the first pusher, a hanging needle is arranged on the active end of the first swing arm, the base is provided with a third sliding groove at a position corresponding to the hanging needle, the third sliding groove comprises a force storage section, a locking section, a release section and a return section which are sequentially communicated, and the locking assembly is used for locking the hanging needle moving into the locking section; the triggering mechanism comprises a second swing arm which is rotationally connected to the base and the upper end of the second swing arm extends out of the base, and the lower end of the second swing arm constitutes an unlocking end for driving the locking assembly to move to unlock the hanging needle; when it is needed to unlock the locking of the rebounding mechanism by the locking mechanism, the upper end of the second swing arm is rotated by the unlocking device, and the lower end of the second swing arm drives the locking assembly to move to unlock the hanging needle.

2. The synchronous bounce trigger of claim 1, wherein, the locking assembly comprises a locking block which is slidingly connected to the base, a second elastic member is arranged between the locking block and the base, one end of the second elastic member is connected to the locking block and the other end is connected to the base, and the elastic force of the second elastic member promotes the locking block to move inward to block the entrance of the return section.

3. The synchronous bounce trigger of claim 2, wherein, a groove is arranged on the locking block, the groove constitutes the release section, a guide block is arranged on the base for guiding the hanging needle located in the groove to enter the return section, the upper end of the guide block is provided with an arc-shaped guide part, and a first avoiding groove is arranged on the locking block for avoiding the guide block.

4. The synchronous bounce trigger of claim 3, wherein, a second avoiding groove is arranged on the base at a position corresponding to the second swing arm, the lower end of the second swing arm extends into the locking block, and a first recess is arranged on the locking block at a position corresponding to the lower end of the second swing arm.

5. The synchronous bounce trigger of claim 4, wherein, the triggering mechanism further comprises a protection member for giving the second swing arm an initial pressure to promote the second swing arm to rotate counterclockwise, the protection member is slidingly connected to the base, a third spring is arranged between the protection member and the base, and the elastic force of the third spring promotes the protection member to move towards the second swing arm.

6. The synchronous bounce trigger of claim 5, wherein, The synchronous mechanism comprises a rotating shaft connected to the base and a convex tooth arranged on the rotating shaft, wherein one end of the rotating shaft extends out of the base; and the locking block is provided with a second groove matched with the convex tooth.

7. The synchronous bounce trigger of claim 1, wherein, A limiting piece is arranged between the return section and the force storage section, and the limiting piece is mounted on the base. The limiting piece comprises a mounting portion and an elastic baffle arranged on the mounting portion. The elastic baffle extends horizontally, and the upper end of the elastic baffle is flush with the bottom of the force storage section. The free end of the elastic baffle is blocked at the outlet of the return section.

8. The synchronous bounce trigger of claim 1, wherein, The gear and rack transmission mechanism comprises a first rack arranged at the bottom of the first pushing member, a gear arranged on the second pushing member, and a second rack arranged on the base. The first rack and the second rack are arranged in parallel and extend along the length direction of the base. The upper and lower sides of the gear are engaged with the first rack and the second rack, respectively.

9. The synchronous bounce trigger of claim 1, wherein, The first mounting slot extends vertically on the first swing arm. A wedge-shaped block is mounted in the first mounting slot. A first spring is arranged between the wedge-shaped block and the bottom of the first mounting slot. The elastic force of the first spring urges the wedge-shaped block to move upward. Correspondingly, a first limiting portion is arranged on the wedge-shaped block to prevent the wedge-shaped block from being pulled out of the first mounting slot. A first limiting slot extends vertically on the first swing arm at a position corresponding to the first limiting portion. The side surface of the wedge-shaped block close to the second pushing member is a vertical surface, and the side surface of the wedge-shaped block away from the second pushing member is an inclined surface.

10. The synchronous bounce trigger of claim 1, wherein, The upper end of the second pushing member is provided with a counter-pushing assembly away from the first pushing member. The counter-pushing assembly comprises a counter-pushing block. A second mounting slot is arranged on the second pushing member for mounting the counter-pushing block. The counter-pushing block is mounted in the second mounting slot. A second spring is arranged between the counter-pushing block and the bottom of the second mounting slot. The elastic force of the second spring urges the counter-pushing block to move outward. Correspondingly, a second limiting portion is arranged on the counter-pushing block to prevent the counter-pushing block from being pulled out of the second mounting slot. A second limiting slot extends horizontally on the second pushing member at a position corresponding to the second limiting portion.

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