Manual impact device

Abstract

The invention relates to the technical field of impact devices, in particular to a manual impact device. A manual impact device comprises a shell assembly and an impact hammer installed on the shell assembly in a guiding and sliding mode, the impact hammer is provided with an energy storage position and an impact position in the guiding and sliding stroke of the impact hammer, an energy storage handle is further installed on the shell assembly in a guiding and sliding mode, and a one-way locking structure is arranged between the energy storage handle and the impact hammer. The one-way locking structure is used for enabling the energy storage handle to be matched with the impact hammer in a stopping mode in the direction from the impact position to the energy storage position, and an unlocking structure for relieving the stopping relation between the energy storage handle and the impact hammer is further arranged at the energy storage position on the shell assembly. The device can accurately, continuously and quickly keep the same impact force to impact a mounting part, and solves the problem of low working efficiency caused by the fact that the impact force of a hammer head needs to be determined by controlling the number of display points passing through through holes when an impact hammer knocks each time in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of impact devices, and particularly to a manual impact device. Background Art

[0002] When repairing or assembling precision instruments, the installation of some components needs to be completed by using the method of continuous knocking for multiple times. For components with high precision requirements, if the knocking force is different each time, it may cause damage to the instrument or failure of the assembly. To avoid the above situation, when knocking, multiple knocks need to be performed with the same impact force required by the operation. However, the existing methods cannot ensure that the impact force is the same each time during continuous knocking, which may lead to the inability to meet the repair or assembly standards after knocking.

[0003] Chinese Patent Document CN110653759A discloses an automated continuous working hammer, which includes a handle and a hammer body. The interior of the hammer body is hollow to form a receiving cavity. A driving assembly and a counterweight are arranged in the receiving cavity. The counterweight can slide relative to the receiving cavity. The driving assembly is used to drive the counterweight to perform linear reciprocating motion. The driving assembly includes a spring and a pair of driving mechanisms. The spring is fixedly abutted between the side wall of the receiving cavity and the counterweight. A pair of driving mechanisms are both connected to the end of the counterweight away from the spring. A pair of driving mechanisms both include a bracket, a roller, and a friction belt. The bracket is fixedly connected to the counterweight. The roller is hinged to the bracket. The friction belt is fixedly connected to the surface of the roller. In this solution, the roller is driven to rotate by a motor inside the roller. When the friction belt is in contact with the side wall of the receiving cavity, the friction force between the friction belt and the side wall of the receiving cavity will drive the counterweight to move towards the roller. When the friction belt is separated from the side wall of the receiving cavity, the friction force between the friction belt and the side wall of the receiving cavity disappears. At this time, the counterweight will move away from the roller under the action of the spring restoring deformation, so that the counterweight will knock on the side wall of the receiving cavity. The defect of this working hammer is that the impact force of the hammer head cannot be adjusted.

[0004] Chinese Patent Document CN209394619U discloses a spring impact hammer. A connecting rod is arranged inside the housing. One end of the connecting rod is provided with a hammer head. A ball handle is arranged at the end of the connecting rod away from the hammer head. A baffle is arranged on one side of the housing close to the ball handle, and a circular gap is arranged inside the baffle. The radius of the circular gap is greater than the radius of the connecting rod. A pressing plate is arranged on the outer side of the connecting rod. A spring is arranged on the outer side of the connecting rod. Multiple display points are arranged on the outer side of the connecting rod from left to right. In the present invention, by squeezing the ball handle, the connecting rod is pulled, so that the display points continuously pass through the through holes. By controlling the number of display points passing through the through holes, the pulling force is adjusted, and thus the impact energy can be adjusted according to the needs of the user. The defect of this impact hammer is that the number of display points passing through the through holes needs to be controlled each time when knocking to determine the impact force of the hammer head, resulting in low working efficiency. Summary of the Invention

[0005] The object of the present invention is to provide a manual impact device, so as to solve the problem of low working efficiency in the prior art that the number of through holes passed by the display point needs to be controlled each time the impact hammer strikes to determine the impact force of the hammer head.

[0006] To solve the above problems, the technical solution of a manual impact device of the present invention is:

[0007] A manual impact device includes a housing assembly and an impact hammer that is guided and slidably mounted on the housing assembly. The impact hammer has an energy storage position and an impact position during its guided sliding stroke. A energy storage handle is also guided and slidably mounted on the housing assembly. A one-way locking structure is arranged between the energy storage handle and the impact hammer. The one-way locking structure is used to make the energy storage handle be in a blocking fit with the impact hammer in the direction from the impact position to the energy storage position. An unlocking structure for releasing the blocking relationship between the energy storage handle and the impact hammer is also provided at the energy storage position on the housing assembly.

[0008] Further, the unlocking structure is adjustably mounted on the housing assembly in the guided sliding direction, so that the position of the energy storage position can be changed.

[0009] Further, the one-way locking structure includes an elastic locking tongue arranged in the energy storage handle and a fixed locking tongue configured on the impact hammer. The elastic locking tongue is elastically floatingly arranged in a direction perpendicular to the guided sliding direction. The elastic locking tongue and the fixed locking tongue can make the energy storage handle be in a blocking fit with the impact hammer in the direction from the impact position to the energy storage position through inclined surface cooperation.

[0010] Further, an unlocking locking tongue extending in the guided sliding direction is provided on the elastic locking tongue. The unlocking structure and the unlocking locking tongue can release the blocking relationship between the energy storage handle and the impact hammer through inclined surface cooperation.

[0011] Further, the housing assembly includes a tubular housing. The impact hammer is guided and slidably mounted in the tubular housing. An avoidance groove extending along the length direction of the housing is provided on the tubular housing. The fixed locking tongue extends out of the avoidance groove. The energy storage handle is rotatably stopped and mounted on the housing, and the elastic locking tongue is correspondingly arranged with the fixed locking tongue.

[0012] Further, the housing assembly further includes a fixed leg connected to the tubular housing. The energy storage handle includes a first annular body part slidably sleeved on the tubular housing and a second annular body part slidably sleeved on the fixed leg to realize the rotation stop of the energy storage handle and the housing. The energy storage handle further includes a grip part connected to the first annular body part. The elastic locking tongue is installed in the grip part.

[0013] Further, scale values are provided on the tubular housing.

[0014] Further, an energy storage spring is configured on the impact hammer.

[0015] Further, the energy storage spring is a tension spring.

[0016] Further, the fixed leg and the tubular housing are adjustably connected in the guiding sliding direction.

[0017] Beneficial effects: The present invention is an improved invention. The manual impact device of the present invention installs an energy storage handle and an unlocking structure on the housing assembly. The energy storage handle is in a blocking fit with the impact hammer and drives the impact hammer to move from the impact position to the energy storage position. When the energy storage handle and the impact hammer reach the energy storage position, the unlocking structure cooperates with the energy storage handle, so that the blocking relationship between the energy storage handle and the impact hammer is released. The impact hammer is affected by the energy storage force and moves from the energy storage position to the impact position, thereby impacting the component, achieving accurate, continuous, and rapid impact on the component with the same impact force, with high working efficiency, and solving the problem of low working efficiency caused by the need to control the number of through holes passed by the display point to determine the impact force of the hammer head when the impact hammer strikes each time in the prior art. The invention can not only achieve precise control of the impact position and impact force, but also is not limited by direction, and is more suitable for the maintenance of various precision instruments in the production site. Description of the Drawings

[0018] Figure 1 is the front view of the manual impact device of the present invention;

[0019] Figure 2 is the front view of the manual impact device in the working state of the present invention;

[0020] Figure 3 is the left view of the manual impact device of the present invention;

[0021] Figure 4 is the top view of the manual impact device of the present invention;

[0022] Figure 5 is the bottom view of the manual impact device of the present invention;

[0023] In the figure: 1. Tubular housing, 2. Fixed leg, 3. Adjusting ring, 4. Locking screw, 5. Release lock tongue, 6. First ring body part, 7. Guide block, 8. Energy storage spring, 9. Impact head, 10. Fixed lock tongue, 11. Unlocking lock tongue, 12. Handle, 13. Horizontal chute, 14. Release spring, 15. Liner ring, 16. Elastic lock tongue, 17. Fixed value scale, 18. Avoidance groove, 19. Set screw, 20. Leg sleeve, 21. Second ring body part, 22. Adjusting ring through hole, 23. Horizontal bottom groove, 24. Impact hole. Detailed Description of the Invention

[0024] The technical solution of the present invention will be further described in detail below.

[0025] As cited in the background art, the impact hammer in the prior art needs to control the number of display points passing through the through hole during each strike to determine the impact force of the hammer head, resulting in low work efficiency. Therefore, the present invention provides a manual impact device, including a housing assembly and an impact hammer that is guidingly and slidably mounted on the housing assembly. The housing assembly is used to mount the impact hammer, and the impact hammer is used to impact a component; the impact hammer has an energy storage position and an impact position during its guiding and sliding stroke. The energy storage position refers to the position where the impact hammer is located on the housing assembly according to the required impact force, and the impact position refers to the position where the impact hammer is located on the housing assembly when it impacts the component; a energy storage handle is also guidingly and slidably mounted on the housing assembly, and a one-way locking structure is configured between the energy storage handle and the impact hammer. The one-way locking structure is used to make the energy storage handle cooperate with the impact hammer in a blocking manner in the direction from the impact position to the energy storage position, so as to realize that the energy storage handle drives the impact hammer to move from the impact position to the energy storage position. When moving from the energy storage position to the impact position, the energy storage handle slides past the impact hammer; an unlocking structure for releasing the blocking relationship between the energy storage handle and the impact hammer is also provided at the energy storage position on the housing assembly, which is used to cooperate with the energy storage handle to release the blocking relationship between the energy storage handle and the impact hammer, and the impact hammer moves from the energy storage position to the impact position under the action of the stored energy, and then impacts the component.

[0026] When it is necessary to impact the installation component with the same impact force, the position of the energy storage position is fixed. The energy storage handle drives the impact hammer to move from the impact position to the energy storage position through the one-way locking structure. After reaching the energy storage position, the unlocking structure cooperates with the energy storage handle to release the blocking relationship between the energy storage handle and the impact hammer. The impact hammer moves from the energy storage position to the impact position under the action of the stored energy, and then impacts the component. Repeating the above process multiple times can achieve accurate, continuous, and fast impact on the component with the same impact force, with high work efficiency, and solves the problem of low work efficiency caused by the need to control the number of display points passing through the through hole to determine the impact force of the hammer head during each strike of the impact hammer in the prior art. The invention can not only achieve precise control of the impact position and impact force, but also is not limited by direction, and is more suitable for the maintenance of various precision instruments in the production site.

[0027] Specific embodiment 1 of the manual impact device of the present invention:

[0028] The manual impact device includes a housing assembly, an impact hammer guidingly and slidably mounted on the housing assembly, and an energy storage handle. A one-way locking structure is configured between the energy storage handle and the impact hammer, and an unlocking structure is also provided on the housing assembly.

[0029] The unlocking structure can be fixedly installed on the housing assembly. At this time, the impact force of the impact hammer is fixed. However, for different components, the impact force of the impact hammer cannot be adjusted. Using a fixed impact force may result in insufficient impact force and failure to meet the component repair or assembly standards, or excessive impact force and component damage. Therefore, preferably in this embodiment, the unlocking structure is adjustably installed on the housing assembly in the guiding sliding direction so that the position of the energy storage position is variable. When different impact forces are required for different components, the position of the unlocking structure on the housing assembly can be adjusted to change the position of the energy storage position, thereby achieving different impact forces.

[0030] Specific Embodiment 2 of the Manual Impact Device of the Present Invention:

[0031] Based on the above technical concept of the present invention, or on the basis of the specific embodiments of the present invention introduced above, another embodiment is provided below.

[0032] To facilitate the engagement between the energy storage handle and the impact hammer in the direction from the impact position to the energy storage position, in this embodiment, the one-way locking structure includes an elastic locking tongue disposed in the energy storage handle and a fixed locking tongue configured on the impact hammer. The elastic locking tongue is elastically floatingly disposed perpendicular to the guiding sliding direction, and the elastic locking tongue and the fixed locking tongue can be engaged through a bevel surface to enable the energy storage handle to be engaged with the impact hammer in the direction from the impact position to the energy storage position. As Figure 1 shown, a fixed locking tongue 10 is fixedly installed on one side of the impact hammer, and an elastic locking tongue 16 is disposed in the energy storage handle. The elastic locking tongue 16 and the fixed locking tongue 10 have corresponding bevel surfaces. During the engagement of the elastic locking tongue 16 and the fixed locking tongue 10 through the bevel surface, the fixed locking tongue 10 pushes the elastic locking tongue 16 open, and the elastic locking tongue 16 moves away from the fixed locking tongue 10 perpendicular to the guiding sliding direction. When the bevel surface engagement is completed, the elastic locking tongue 16 reaches below the fixed locking tongue 10, and the elastic locking tongue 16 moves closer to the fixed locking tongue 10 perpendicular to the guiding sliding direction, enabling the energy storage handle to be engaged with the impact hammer in the direction from the impact position to the energy storage position. This method is simple to operate.

[0033] Specific Embodiment 3 of the Manual Impact Device of the Present Invention:

[0034] Based on the above technical concept of the present invention, or on the basis of the specific embodiments of the present invention introduced above, another embodiment is provided below.

[0035] To facilitate the release of the engagement relationship between the energy storage handle and the impact hammer, the elastic locking tongue is provided with an unlocking locking tongue extending in the guiding sliding direction. The unlocking structure and the unlocking locking tongue can be engaged through a bevel surface to release the engagement relationship between the energy storage handle and the impact hammer. As Figure 2As shown, an unlocking locking tongue 11 extending in the guiding sliding direction is fixedly installed on the elastic locking tongue 16. A releasing locking tongue 5 is provided on the unlocking structure. The releasing locking tongue 5 and the unlocking locking tongue 11 have corresponding inclined surfaces. During use, when the energy storage handle drives the impact hammer to the energy storage position, the releasing locking tongue 5 and the unlocking locking tongue 11 cooperate through the inclined surfaces. During the cooperation of the inclined surfaces of the releasing locking tongue 5 and the unlocking locking tongue 11, the unlocking locking tongue 11 drives the elastic locking tongue 16 to move away from the fixed locking tongue 10 in a direction perpendicular to the guiding sliding direction, so that the blocking relationship between the elastic locking tongue 16 and the fixed locking tongue 10 is released, and the impact hammer is separated from the energy storage handle. Furthermore, under the action of the energy storage force, the impact hammer impacts the component. This method is simple to operate and can improve the stability of the impact force.

[0036] Specific Embodiment 4 of the manual impact device of the present invention:

[0037] Based on the above technical concept of the present invention, or on the basis of the specific embodiments of the present invention introduced above, another embodiment is provided below.

[0038] As Figure 1 、 2As shown in FIGS. 3, 4, and 5, in this embodiment, the housing assembly includes a tubular housing 1 and a fixed leg 2 connected to the tubular housing 1. A leg sleeve 20 is fixedly installed at the side position of one end of the impact position on the tubular housing 1. The fixed leg 2 passes through the leg sleeve 20 and is fixed with bolts. The impact hammer is slidably installed in the tubular housing 1. The impact hammer includes a cylindrical guide block 7 and a cylindrical impact head 9. The cylindrical impact head 9 is fixedly connected to the center of the bottom of the guide block 7 in the direction of the component to be impacted. When the impact hammer is in the impact position, the impact head 9 extends out from the end face of the tubular housing 1. An impact hole 24 is provided at the center of the plane of this end face of the tubular housing 1. The outer diameter of the impact head 9 is smaller than the inner diameter of the impact hole 24. A fixed locking tongue 10 is provided on the side of the guide block 7 opposite to the fixed leg 2. An avoidance groove 18 extending along the length direction of the tubular housing 1 is provided on the tubular housing 1. The fixed locking tongue 10 extends out from the avoidance groove 18. The energy storage handle includes a first ring part 6 slidably sleeved on the tubular housing 1 and a second ring part 21 slidably sleeved on the fixed leg 2 to achieve non-rotation of the energy storage handle and the housing. The energy storage handle further includes a grip 12 connected to the first ring part 6. The grip 12 is a tubular body. An elastic locking tongue 16 is installed in the grip 12 through a lining ring 15 and is arranged corresponding to the fixed locking tongue 10. A release spring 14 is installed on the side of the elastic locking tongue 16 opposite to the fixed locking tongue 10. The release spring 14 is fixedly installed between the side of the elastic locking tongue 16 opposite to the fixed locking tongue 10 and the inner wall of one end of the corresponding grip 12 to provide an elastic effect for the elastic locking tongue 16 to move towards the fixed locking tongue 10. A horizontal sliding groove 13 is provided on the grip 12 for the unlocking locking tongue 11 to extend out and move on the horizontal sliding groove 13. A horizontal bottom groove 23 is provided on the grip 12. The first ring part 6 is an open ring, and the opening position is arranged on one side of the grip 12. The horizontal sliding groove 13 and the horizontal bottom groove 23 communicate with the opening, enabling the fixed locking tongue 10 to move relative to the first ring part 6 along the opening position to continuously and stably maintain the same impact force to impact the component.

[0039] In other embodiments, the housing assembly includes a square rod and a fixed leg 2 connected to the square rod. A leg sleeve 20 is provided at a side position of one end of the impact position on the square rod. The fixed leg 2 passes through the leg sleeve 20 and is fixed with bolts. A dovetail groove extending along the length direction of the square rod is provided on the side of the square rod opposite to the fixed leg 2. The impact hammer includes a guide block and an impact head. The impact head is fixedly connected to the center position of the bottom of the guide block in the direction of the component to be impacted. When the impact hammer is in the impact position, the impact head extends out from the end face of the square rod. A dovetail block is provided on one side of the guide block, and the dovetail block is guidingly and slidably installed in the dovetail groove, so that the impact hammer can be guidingly slid along the square rod, and at the same time, the rotation stop between the impact hammer and the square rod is realized. The fixed locking tongue 10 is provided on the side of the guide block opposite to the dovetail block. Two grooves extending along the length direction of the square rod are provided on the two sides of the square rod adjacent to the dovetail groove. The energy storage handle includes a square slider. The inside of the square slider is a square hollow structure. One side of the square slider is provided with a semi-open structure. The convex parts on both sides of the semi-open structure cooperate with the two grooves and can be guidingly slid along the grooves, so that the energy storage handle can be guidingly slid along the square rod through the square slider, and the impact hammer is guidingly slid in the square hollow structure; the energy storage handle further includes a grip 12 connected to the side of the square slider opposite to the semi-open structure. The grip 12 is a tubular body. The elastic locking tongue 16 is installed in the grip 12 through a lining ring 15 and is arranged corresponding to the fixed locking tongue 10. A release spring 14 is installed at the bottom of the elastic locking tongue 16. The release spring 14 is fixedly installed between the side of the elastic locking tongue 16 opposite to the fixed locking tongue 10 and the inner wall of one end of the corresponding grip 12, providing an elastic effect for the elastic locking tongue 16 to move towards the fixed locking tongue 10; a horizontal chute 13 is provided on the grip 12 for the unlocking locking tongue 11 to extend out and move on the horizontal chute 13. A horizontal bottom groove 23 is provided on the grip 12. An opening is also provided on the side of the square slider where the grip 12 is located. The horizontal chute 13 and the horizontal bottom groove 23 communicate with the opening, enabling the fixed locking tongue 10 to move relative to the square slider along the opening position.

[0040] Specific embodiment 5 of the manual impact device of the present invention:

[0041] Based on the above technical concept of the present invention, or based on the specific embodiments of the present invention introduced above, another embodiment is provided below.

[0042] In order to improve the accuracy of the impact force, in this embodiment, a set value scale 17 is provided on the tubular housing 1. As Figure 1As shown in the figure, the unlocking structure includes an adjusting ring 3 and a release lock tongue 5. The adjusting ring 3 is slidably sleeved on the tubular housing 1 in the housing direction. The release block 5 is disposed on the adjusting ring 3 at a 45° angle downward, and the position of the release lock tongue 5 corresponds to the position of the unlocking lock tongue 11. When different impact forces need to be adjusted, the adjusting ring 3 is adjusted to the corresponding fixed value scale 17 position and fixed with a locking screw 4. At the same time, the position of the corresponding energy storage position is also adjusted, making the impact force more accurate and improving the maintenance and assembly accuracy.

[0043] Specific Embodiment 6 of the Manual Impact Device of the Present Invention:

[0044] Based on the above technical concept of the present invention or on the basis of the specific embodiments of the present invention introduced above, another embodiment is provided below.

[0045] In this embodiment, an energy storage spring 8 is arranged on the impact hammer, which is convenient for realizing the impact of components in any direction. As shown in Figure 1 、 2 、4, and 5, the energy storage spring 8 is a tension spring. The energy storage spring 8 is sleeved outside the impact head 9, and both ends of the energy storage spring 8 are fixedly connected to one end of the guide block 7 provided with the impact head 9 and one end of the corresponding tubular housing 1. During use, the energy storage handle drives the impact hammer to move towards the energy storage position, and the energy storage spring 8 expands. When the energy storage handle drives the impact hammer to reach the energy storage position, the energy storage handle and the impact hammer are unlocked, and the impact head 9 is driven to impact the component under the action of the restoring force of the energy storage spring 8, which is convenient for realizing impacts in different directions.

[0046] In other embodiments, the energy storage spring 8 is installed on one side of the impact head 9, and both ends of the energy storage spring 8 are fixedly connected to one end of the guide block 7 provided with the impact head 9 and one end of the corresponding tubular housing 1. During use, the energy storage handle drives the impact hammer to move towards the energy storage position, and the energy storage spring 8 expands. When the energy storage handle drives the impact hammer to reach the energy storage position, the energy storage handle and the impact hammer are unlocked, and the impact head 9 is driven to impact the component under the action of the restoring force of the energy storage spring 8.

[0047] In other embodiments, the energy storage spring 8 is a compression spring. Both ends of the energy storage spring 8 are fixedly connected to one end of the guide block 7 away from the impact head 9 and one end of the corresponding tubular housing 1. During use, the energy storage handle drives the impact hammer to move towards the energy storage position, and the energy storage spring 8 is compressed. When the energy storage handle drives the impact hammer to reach the energy storage position, the energy storage handle and the impact hammer are unlocked, and the impact head 9 is driven to impact the component under the action of the elastic force of the energy storage spring 8.

[0048] In other embodiments, when the manual impact device is installed in the up and down position, the impact hammer is not configured with an energy storage spring. During use, the energy storage handle drives the impact hammer to move from the impact position to the energy storage position. When the energy storage handle drives the impact hammer to reach the energy storage position, the energy storage handle and the impact hammer are unlocked, and the impact head 9 is driven to impact the component under the action of the gravitational potential energy of the impact hammer.

[0049] Specific embodiment 7 of the cyclic fixed-value impact device of the present invention:

[0050] Based on the above technical concept of the present invention, or on the basis of the specific embodiments of the present invention introduced above, another embodiment is provided below.

[0051] The fixed leg 2 and the tubular housing 1 can be fixedly connected by bolts. A leg sleeve 20 is fixedly installed at the side position of one end of the impact position on the tubular housing 1, and the fastening bolt passes through the fixed leg 2 and the leg sleeve 20 to fixedly connect them together. However, the fixed connection makes it difficult to adjust the relative position of the tubular housing 1 according to the height and position of the component to be impacted, resulting in inconvenience in impacting the component. Therefore, in this embodiment, preferably, the fixed leg 2 and the tubular housing 1 are adjustably connected in the guiding sliding direction. As Figure 1 、 2 shown, the unlocking structure further includes an adjustment ring through hole 22. The center of the leg sleeve 20 is concentric with the second ring body portion 21 above it and the adjustment ring through hole 22. The fixed leg 2 passes through the leg sleeve 20, the second ring body portion 21, and the adjustment ring through hole 22 and can move up and down. A setscrew 19 is installed on the side of the leg sleeve 20. When it is necessary to adjust the position of the impact hammer according to the height and position of the component to be impacted, loosen the setscrew 19, and the fixed leg 2 is adjustable in the guiding sliding direction relative to the tubular housing 1. After determining the position, tighten the setscrew 19 to lock the staying position of the fixed leg 2, and the relative position of the tubular housing 1 can be adjusted according to the height and position of the impact component, which is convenient for impacting the component.

[0052] As Figure 1 、 2As shown in Figures 3, 4, and 5, when using this manual impact device, first adjust the height of the fixed leg 2, place its bottom against the side of the impact component, and tighten the setscrew 19 to keep the tubular housing 1 stable. Then, adjust the position of the adjusting ring 3 according to the required impact force with reference to the fixed value scale 17. After adjustment, tighten the locking screw 4 to fix the adjusting ring 3 on the tubular housing 1. Press down the handle 12, and the first ring body part 6 and the elastic locking tongue 16 descend along the tubular housing 1. When the 45° inclined surface of the head of the elastic locking tongue 16 contacts the 45° inclined surface of the head of the fixed locking tongue 10, the inclined surface of the fixed locking tongue 10 pushes the elastic locking tongue 16 outward to the outside of the handle 12. When the elastic locking tongue 16 reaches below the fixed locking tongue 10, the elastic locking tongue 16 moves towards the fixed locking tongue 10, and the upper end of the head of the elastic locking tongue 16 gets stuck under the lower end of the head of the fixed locking tongue 10, forming a one-way lock. At this time, lift the handle 12, and the elastic locking tongue 16 drives the fixed locking tongue 10, the guide block 7, and the impact head 9 to move upward together. When reaching the set height, the 45° inclined surface of the head of the unlocking locking tongue 11 contacts the 45° inclined surface of the head of the release locking tongue 5, and the inclined surface of the release locking tongue 5 pushes the unlocking locking tongue 11 away. The unlocking locking tongue 11 drives the elastic locking tongue 16 to move outward to the outside of the handle 12. When the head of the elastic locking tongue 16 moves to a position outside the fixed locking tongue 10, under the pulling of the energy storage spring 8, the guide block 7 drives the impact head 9 to move downward in the tubular housing 1, and the impact head 9 passes through the impact hole 24 to strike the component, completing a single impact. When it is necessary to strike the component with the same impact force multiple times, press down the handle 12 until the elastic locking tongue 16 reaches below the fixed locking tongue 10 and then lift it to repeat the above process; when different impact forces are required, loosen the locking screw 4, adjust the position of the adjusting ring 3 according to the fixed value scale 17, and then perform the striking operation.

[0053] Through the above description of the specific embodiments of the cyclic fixed-value impact device of the present invention, it can be seen that the manual impact device of the present invention includes a shell assembly and an impact hammer installed in a guide sliding manner on the shell assembly. The impact hammer has an energy storage position and an impact position in its guide sliding stroke. An energy storage handle is also installed in a guide sliding manner on the shell assembly. A one-way locking structure is arranged between the energy storage handle and the impact hammer. The one-way locking structure is used to make the energy storage handle cooperate with the impact hammer in the direction from the impact position to the energy storage position. An unlocking structure for releasing the blocking relationship between the energy storage handle and the impact hammer is also provided at the energy storage position on the shell assembly. The manual impact device of the present invention installs an energy storage handle and an unlocking structure on the shell assembly. The energy storage handle cooperates with the impact hammer to stop and drive the impact hammer to move from the impact position to the energy storage position. When the energy storage handle and the impact hammer reach the energy storage position, the unlocking structure cooperates with the energy storage handle to release the blocking relationship between the energy storage handle and the impact hammer. The impact hammer moves from the energy storage position to the impact position under the action of the energy storage capacity, and then impacts the component, thereby achieving accurate, continuous and rapid impact of the component with the same impact force, and has high work efficiency. It solves the problem in the prior art that the impact hammer needs to control the number of display points passing through the through hole to determine the impact force of the hammer head each time it strikes, resulting in low work efficiency. The invention can not only achieve precise control of the impact position and impact force, but also is not restricted by direction, and is more suitable for maintenance of various precision instruments on production sites.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A manual impact device, comprising a housing assembly and a hammer that is slidably mounted on the housing assembly in a guiding manner. The hammer has an energy storage position and an impact position during its guiding sliding stroke. It is characterized in that, A energy storage handle is also installed on the housing assembly in a guiding and sliding manner, and a one-way locking structure is arranged between the energy storage handle and the impact hammer. The one-way locking structure is used to make the energy storage handle be in a blocking fit with the impact hammer in the direction from the impact position to the energy storage position. An unlocking structure for releasing the blocking relationship between the energy storage handle and the impact hammer is also arranged on the housing assembly at the energy storage position.

2. The manual impact device according to claim 1, wherein, The unlocking structure is adjustably installed on the housing assembly in the guiding and sliding direction so that the position of the energy storage position can be changed.

3. The manual impact device according to claim 2, characterized in that, The one-way locking structure includes an elastic locking tongue arranged in the energy storage handle and a fixed locking tongue configured on the impact hammer. The elastic locking tongue is elastically and floatingly arranged perpendicular to the guiding and sliding direction. The elastic locking tongue and the fixed locking tongue can be in a blocking fit with each other through a bevel surface so that the energy storage handle can be in a blocking fit with the impact hammer in the direction from the impact position to the energy storage position.

4. The manual impact device according to claim 3, characterized in that, An unlocking locking tongue extending in the guiding and sliding direction is arranged on the elastic locking tongue. The unlocking structure and the unlocking locking tongue can release the blocking relationship between the energy storage handle and the impact hammer through a bevel surface fit.

5. The manual impact device according to claim 4, wherein, The housing assembly includes a tubular housing. The impact hammer is installed in the tubular housing in a guiding and sliding manner. An avoidance groove extending along the length direction of the housing is arranged on the tubular housing. The fixed locking tongue extends out of the avoidance groove. The energy storage handle is installed on the housing in a non-rotating manner, and the elastic locking tongue is arranged corresponding to the fixed locking tongue.

6. The manual impact device according to claim 5, wherein, The housing assembly further includes a fixed leg connected to the tubular housing. The energy storage handle includes a first annular body part slidably sleeved on the tubular housing and a second annular body part slidably sleeved on the fixed leg to achieve non-rotation of the energy storage handle and the housing. The energy storage handle further includes a grip part connected to the first annular body part, and the elastic locking tongue is installed in the grip part.

7. The manual impact device according to claim 5 or 6, characterized in that, Scale values are arranged on the tubular housing.

8. The manual impact device according to any one of claims 1-6, characterized in that, An energy storage spring is configured on the impact hammer.

9. The manual impact device according to claim 8, characterized in that, The energy storage spring is a tension spring.

10. The manual impact device according to claim 6, characterized in that, The fixed leg and the tubular housing are adjustably connected in the guiding and sliding direction.

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