A protective casing for a breaker hammer

Abstract

The present invention relates to the technical field of breaker hammers. Specifically, the present invention relates to a breaker hammer protective shell, comprising an electric motor, a rounded shell fixedly connected to the front end of the electric motor, a motor shaft rotatably connected to the inner wall of the rounded shell, the motor shaft rotatably connected to a vacuum device through a bearing, a sound insulation device is arranged in front of the vacuum device, a damping device is installed inside the sound insulation device, a drill bit is fixedly connected to the inner wall of the damping device, a buffer device is arranged behind the drill bit, a fastening device is fixedly connected to the rear end of the buffer device, the vacuum device comprises a vacuum shaft, a vacuum pump is arranged on the left side of the vacuum shaft, the bottom of the vacuum pump is fixedly connected to the inner wall of the rounded shell, a vacuum short tube is fixedly connected to the front end of the vacuum pump, a vacuum long tube is arranged below the vacuum short tube, the top of the vacuum long tube is fixedly connected to the vacuum pump, the vacuum pump performs vacuum extraction on the rounded shell and the sound insulation device through the vacuum short tube and the vacuum long tube, so that the noise generated by the breaker hammer during operation is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of breaker hammers, and in particular to a breaker hammer protective shell. Background Art

[0002] In infrastructure operations, a breaker is an important tool for crushing operations. No matter it is a hydraulic breaker or a small handheld breaker, the exposed hammer body will generate huge noise, harmful dust and flying concrete blocks during operation. Workers at construction sites often wear protective devices such as masks and earplugs when using a breaker. However, with the increase in construction volume, more and more crushing operations occur in urban areas or densely populated areas. When a breaker is used in a crushing operation, noise, dust, flying stones and other dangers will be generated, affecting the public interests of passers-by and surrounding residents and threatening their lives and property. At the same time, the strong hard contact and vibration of the breaker when working will cause great damage to the working tool, thereby reducing the service life of the tool. Therefore, we propose a breaker protective shell. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a protective housing for a breaker hammer, comprising a motor, the front end of the motor is fixedly connected to a rounded housing, the inner wall of the rounded housing is rotatably connected to a motor shaft, the motor shaft is rotatably connected to the motor through a bearing, the motor shaft is rotatably connected to a vacuum device through a bearing, a sound insulation device is arranged in front of the vacuum device, the rear end of the sound insulation device is fixedly connected to the rounded housing, a damping device is installed inside the sound insulation device, a drill bit is fixedly connected to the inner wall of the damping device, the drill bit is rotatably connected to the vacuum device through a bearing, a buffer device is arranged behind the drill bit, the front end of the buffer device is fixedly connected to the rounded housing, the rear end of the buffer device is fixedly connected to a fastening device, and both ends of the fastening device are fixedly connected to the rounded housing;

[0004] The vacuum device includes a vacuum shaft, a vacuum pump is arranged on the left side of the vacuum shaft and is driven by a transmission belt, the bottom of the vacuum pump is fixedly connected to the inner wall of the rounded shell, the front end of the vacuum pump is fixedly connected to a vacuum short tube, a vacuum long tube is arranged below the vacuum short tube, the top of the vacuum long tube is fixedly connected to the vacuum pump, the motor drives the motor shaft to rotate and thus drives the vacuum shaft to rotate, and the vacuum pump is driven by the transmission belt to vacuum the rounded shell and the sound insulation device through the vacuum short tube and the vacuum long tube, thereby soundproofing the breaker, so that the noise generated by the breaker during operation is greatly reduced.

[0005] Furthermore, there are two vacuum devices, and the two vacuum devices are symmetrically arranged with the motor shaft as the center. The two vacuum devices work simultaneously through a transmission belt, and at the same time, the rounded shell and the sound insulation device are vacuumed through a short vacuum tube and a long vacuum tube, so that the air on the rounded shell and the inner wall of the sound insulation device can be extracted more quickly to reach a vacuum state, thereby further enhancing the sound insulation effect.

[0006] Furthermore, the sound insulation device includes a buffer rubber layer, the surface of the buffer rubber layer is provided with threaded holes, the top of the buffer rubber layer is fixedly connected with a sound insulation cover, the surface of the sound insulation cover is provided with exhaust holes, an air cushion membrane is installed inside the sound insulation cover, and the bottom of the air cushion membrane is fixedly connected to the buffer rubber layer. When the breaker is working, the buffer rubber layer will cover a large area of ​​the working surface, so that stones and debris will splash on the buffer rubber layer, and the elasticity of the rubber will offset the impact force, so that stones and other debris are not easy to splash, thereby achieving the effect of protecting the staff. The sound insulation cover adopts damping material, so as to reduce the noise by reducing the frequency of the sound, and the air cushion membrane located inside the sound insulation cover reduces the noise twice, thereby achieving better sound insulation effect.

[0007] Furthermore, a long vacuum tube runs through the interior of the exhaust hole and extends to between the sound insulation cover and the air cushion membrane, so that the long vacuum tube evacuates air between the sound insulation cover and the air cushion membrane to achieve a vacuum state, thereby preventing the noise generated by the working of the breaker from being transmitted, thereby further achieving the sound insulation effect.

[0008] Furthermore, the damping device includes a threaded shell, the inner wall of the threaded shell is fixedly connected with a damping spring, the bottom of the damping spring is fixedly connected with a damping gasket, a damping washer is arranged above the damping gasket, the bottom of the damping washer is fixedly connected to the damping spring, and the threaded shell is fixed to the surface of the drill bit, which is conducive to cutting and grinding stones and debris, and prevents the shaft of the drill bit from being damaged by long-term wear of debris, thereby extending the working life of the breaker. When the breaker is working, the damping spring reduces the vibration amplitude of the breaker through its elasticity, and the damping gasket and the damping gasket are respectively installed at both ends of the damping spring. The damping gasket is in direct hard contact with the drill bit to accept vibration, and the damping gasket is fixed to the bottom of the circular shell, so that the damping spring is evenly stressed, thereby achieving a better damping effect.

[0009] Furthermore, the buffer device includes an adsorption base, a buffer gasket is fixedly connected to the top of the adsorption base, a buffer spring is fixedly connected to the top of the buffer gasket, a telescopic rod is installed inside the buffer spring, the top of the telescopic rod is fixedly connected to the top plate, the top of the top plate is fixedly connected to the lock buckle, the adsorption base adsorbs and fixes the circular shell to avoid damage to the buffer device by the operation of the breaker during hard contact, the buffer gasket reduces the impact force transmitted by the adsorption base through the operation of the breaker, so that the telescopic rod drives the buffer spring fixed at the bottom of the top plate to make reciprocating motion, thereby achieving a buffering effect on the circular shell.

[0010] Furthermore, there are two buffer devices, and the two buffer devices are symmetrically arranged with the motor shaft as the center. The two buffer devices work simultaneously, so that when the breaker hammer is working, the buffer devices evenly apply force to the circular shell. At the same time, the two buffer devices share the force at the same time, which extends the working life of the buffer device, thereby further achieving a buffering effect and protecting the shell.

[0011] Furthermore, the fastening device includes a locking rod, a locking spring is fixedly connected to the surface of the locking rod, a locking block is installed on the right side of the locking spring, the left end of the locking block is fixedly connected to the lock buckle, triangular fixing blocks are respectively installed on both sides of the locking block, the rear end of the triangular fixing block is fixedly connected to the circular shell, a buckle is installed on the left side of the triangular fixing block, the right end of the buckle is fixedly connected to the circular shell, a clamping rod passes through the inside of the buckle, the two ends of the clamping rod are respectively fixedly connected to four corner fixing blocks, the right end of the four corner fixing blocks is fixedly connected to the circular shell, the locking rod is inserted in the lock buckle to fix the buffer device, so that the buffer device, the fastening device and the circular shell are connected as one, so that the buffer device can better share the force. It has a better buffering effect. The locking spring connects the buffer device and the circular shell to play a locking and fixing role. The locking block is fixedly connected to the locking buckle, so that the fastening device fixes the buffer device. The triangular fixing blocks at both ends of the locking rod are fixedly connected to the inner wall of the circular shell, so that the fastening device locks and fixes the circular shell from the inside. The buckle is fixedly connected to the circular shell, the clamping rod passes through the clamping rod, and the four corner fixing blocks at both ends of the clamping rod are fixedly connected to the outer surface of the circular shell, so that the fastening device locks and fixes the circular shell from the outside. Therefore, when the fastening device connects the buffer device and the circular shell, it plays a role of locking and fixing the inside and outside of the circular shell at the same time, thereby achieving a better fixing effect.

[0012] Furthermore, there are two fastening devices, and the two fastening devices are symmetrically arranged with the motor shaft as the center. The two fastening devices are locked and fixed from both sides of the circular shell at the same time, and the two buffer devices are locked and fixed at the same time, so that the two buffer devices share the force of the circular shell at the same time, so that the circular shell can evenly disperse the force, preventing a certain part of the circular shell from being subjected to a high-intensity impact, thereby damaging the circular shell, extending the service life of the circular shell, and further locking and fixing the circular shell.

[0013] The present invention has the beneficial effects:

[0014] 1. The present invention sets a vacuum device, and the motor drives the motor shaft to rotate, thereby driving the vacuum shaft to rotate. The transmission belt drives the vacuum pump to vacuum the rounded shell and the sound insulation device through the vacuum short tube and the vacuum long tube, thereby soundproofing the breaker, so that the noise generated by the breaker at work is greatly reduced. The two vacuum devices work simultaneously through the transmission belt, and at the same time, the vacuum short tube and the vacuum long tube are used to vacuum the rounded shell and the sound insulation device, so that the air on the rounded shell and the inner wall of the sound insulation device is extracted more quickly to make it reach a vacuum state, thereby further enhancing the sound insulation effect.

[0015] 2. The present invention provides a damping device, and the threaded shell is fixed on the surface of the drill bit, which is beneficial to cutting and grinding stones and debris, and prevents the shaft of the drill bit from being damaged by long-term wear of debris, thereby extending the working life of the breaker. When the breaker is working, the damping spring reduces the vibration amplitude of the breaker through its elasticity, and damping washers and damping washers are respectively installed at both ends of the damping spring. The damping washers are in direct hard contact with the drill bit to receive vibration, and the damping washers are fixed on the bottom of the circular shell, so that the damping spring is evenly stressed, thereby achieving a better damping effect.

[0016] 3. The present invention arranges a buffer device, and the adsorption base adsorbs and fixes the circular shell to avoid damage to the buffer device when the breaker hammer is in hard contact. The buffer gasket reduces the impact force transmitted by the adsorption base through the operation of the breaker hammer, so that the telescopic rod drives the buffer spring fixed at the bottom of the top plate to do reciprocating motion, thereby achieving a buffering effect on the circular shell. The two buffer devices work at the same time, so that when the breaker hammer is working, the buffer device evenly applies force to the circular shell. At the same time, the two buffer devices share the force at the same time, which extends the working life of the buffer device, thereby further achieving a buffering effect and protecting the shell.

[0017] 4. The present invention provides a fastening device, and the locking rod is inserted into the lock buckle to fix the buffer device, so that the buffer device, the fastening device and the circular shell are connected as a whole, so that the buffer device can better share the force and achieve a better buffering effect. The locking spring connects the buffer device and the circular shell to play a locking and fixing role. The locking block is fixedly connected to the lock buckle, so that the fastening device fixes the buffer device. The triangular fixing blocks at both ends of the locking rod are fixedly connected to the inner wall of the circular shell, so that the fastening device plays a locking and fixing role on the circular shell from the inside. The buckle is fixedly connected to the circular shell, the clamping rod passes through the clamping rod, and the four corner fixing blocks at both ends of the clamping rod are fixedly connected to the circular shell. The outer surface of the circular shell is locked and fixed by the fastening device from the outside, so that the fastening device connects the buffer device and the circular shell and locks and fixes the inside and outside of the circular shell at the same time, thereby achieving a better fixing effect. The two fastening devices are locked and fixed from both sides of the circular shell at the same time, and the two buffer devices are locked and fixed at the same time, so that the two buffer devices share the force of the circular shell at the same time, so that the circular shell evenly disperses the force, preventing a certain part of the circular shell from being subjected to a high-intensity impact, thereby damaging the circular shell, extending the service life of the circular shell, and further locking and fixing the circular shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall internal structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the vacuum device of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the sound insulation device of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the sound insulation device of the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the damping device of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the buffer device of the present invention;

[0025] Figure 8 It is a schematic diagram of the structure of the fastening device of the present invention;

[0026] In the figure: 1. electric motor; 2. rounded shell; 3. motor shaft; 4. vacuum device; 5. sound insulation device; 6. damping device; 7. drill bit; 8. buffer device; 9. fastening device; 41. vacuum shaft; 42. vacuum pump; 43. transmission belt; 44. short vacuum tube; 45. long vacuum tube; 51. buffer rubber layer; 52. threaded hole; 53. sound insulation cover; 54. air cushion membrane; 55. exhaust hole; 61. threaded shell; 62. damping spring; 63. damping gasket; 64. damping washer; 81. adsorption base; 82. buffer washer; 83. buffer spring; 84. telescopic rod; 85. top plate; 86. lock; 91. locking rod; 92. locking spring; 93. locking block; 94. triangular fixing block; 95. buckle; 96. clamping rod; 97. four-corner fixing block. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0028] For examples, see Figure 1-Figure 8 The present invention is a protective housing for a breaker hammer, comprising a motor 1, a front end of the motor 1 being fixedly connected to a rounded housing 2, an inner wall of the rounded housing 2 being rotatably connected to a motor shaft 3, the motor shaft 3 being rotatably connected to the motor 1 through a bearing, the motor shaft 3 being rotatably connected to a vacuum device 4 through a bearing, a sound insulation device 5 being arranged in front of the vacuum device 4, a rear end of the sound insulation device 5 being fixedly connected to the rounded housing 2, an amplitude reduction device 6 being installed inside the sound insulation device 5, a drill bit 7 being fixedly connected to the inner wall of the amplitude reduction device 6, the drill bit 7 being rotatably connected to the vacuum device 4 through a bearing, a buffer device 8 being arranged behind the drill bit 7, a front end of the buffer device 8 being fixedly connected to the rounded housing 2, a rear end of the buffer device 8 being fixedly connected to a fastening device 9, and both ends of the fastening device 9 being fixedly connected to the rounded housing 2;

[0029] The vacuum device 4 includes a vacuum shaft 41, a vacuum pump 42 is arranged on the left side of the vacuum shaft 41, and the transmission is transmitted by a transmission belt 43. The bottom of the vacuum pump 42 is fixedly connected to the inner wall of the rounded shell 2, and the front end of the vacuum pump 42 is fixedly connected to a vacuum short tube 44. A vacuum long tube 45 is arranged below the vacuum short tube 44, and the top of the vacuum long tube 45 is fixedly connected to the vacuum pump 42. The motor 1 drives the motor shaft 3 to rotate, thereby driving the vacuum shaft 41 to rotate. The vacuum pump 42 is driven by the transmission belt 43 to vacuum the rounded shell 2 and the sound insulation device 5 through the vacuum short tube 44 and the vacuum long tube 45, thereby soundproofing the breaker, so that the noise generated by the breaker during operation is greatly reduced.

[0030] There are two vacuum devices 4, and the two vacuum devices 4 are symmetrically arranged with the motor shaft 3 as the center. The two vacuum devices 4 work simultaneously through the transmission belt 43. At the same time, the rounded shell 2 and the sound insulation device 5 are vacuum-extracted through the vacuum short tube 44 and the vacuum long tube 45, so as to more quickly extract the air from the inner wall of the rounded shell 2 and the sound insulation device 5 to reach a vacuum state, thereby further enhancing the sound insulation effect.

[0031] The sound insulation device 5 includes a buffer rubber layer 51, a threaded hole 52 is provided on the surface of the buffer rubber layer 51, a sound insulation cover 53 is fixedly connected to the top of the buffer rubber layer 51, an exhaust hole 55 is provided on the surface of the sound insulation cover 53, an air cushion membrane 54 is installed inside the sound insulation cover 53, and the bottom of the air cushion membrane 54 is fixedly connected to the buffer rubber layer 51. When the breaker is working, the buffer rubber layer 51 will cover a large area of ​​the working surface, so that stones and debris will splash on the buffer rubber layer 51, and the elasticity of the rubber will offset the impact force, so that stones and other debris are not easy to splash, thereby achieving the effect of protecting the staff. The sound insulation cover 53 uses a damping material to reduce noise by reducing the frequency of sound. The air cushion membrane 54 located inside the sound insulation cover 53 reduces noise twice, thereby achieving better sound insulation effect.

[0032] A long vacuum tube 45 runs through the interior of the exhaust hole 55 and extends to between the sound insulation cover 53 and the air cushion membrane 54, so that the long vacuum tube 45 can exhaust air between the sound insulation cover 53 and the air cushion membrane 54 to achieve a vacuum state, thereby preventing the noise generated by the breaker during operation from being transmitted, thereby further achieving the sound insulation effect.

[0033] The damping device 6 includes a threaded shell 61, the inner wall of which is fixedly connected with a damping spring 62, the bottom of which is fixedly connected with a damping gasket 63, a damping washer 64 is arranged above the damping gasket 63, the bottom of the damping washer 64 is fixedly connected with the damping spring 62, the threaded shell 61 is fixed to the surface of the drill bit 7, which is conducive to cutting and grinding stones and debris, and prevents the shaft of the drill bit 7 from being damaged by long-term wear of debris, thereby extending the working life of the breaker. When the breaker is working, the damping spring 62 reduces the vibration amplitude of the breaker through its elasticity, and the two ends of the damping spring 62 are respectively installed with a damping gasket 63 and a damping gasket 64, the damping gasket 63 is in direct hard contact with the drill bit 7 to accept vibration, and the damping gasket 64 is fixed to the bottom of the circular shell, so that the damping spring 62 is evenly stressed, thereby achieving a better damping effect.

[0034] The buffer device 8 includes an adsorption base 81, a buffer gasket 82 is fixedly connected to the top of the adsorption base 81, a buffer spring 83 is fixedly connected to the top of the buffer gasket 82, a telescopic rod 84 is installed inside the buffer spring 83, a top plate 85 is fixedly connected to the top of the telescopic rod 84, a lock buckle 86 is fixedly connected to the top of the top plate 85, the adsorption base 81 adsorbs and fixes the circular shell to prevent the breaker from damaging the buffer device 8 during hard contact, and the buffer gasket 82 reduces the impact force transmitted by the adsorption base 81 through the breaker, so that the telescopic rod 84 drives the buffer spring 83 fixed at the bottom of the top plate 85 to do reciprocating motion, thereby achieving a buffering effect on the circular shell.

[0035] There are two buffer devices 8, and the two buffer devices 8 are symmetrically arranged with the motor shaft 3 as the center. The two buffer devices 8 work at the same time, so that when the breaker is working, the buffer devices 8 evenly apply force to the circular shell. At the same time, the two buffer devices 8 share the force at the same time, which extends the working life of the buffer devices 8, thereby further achieving a buffering effect and protecting the shell.

[0036] The fastening device 9 includes a locking rod 91, a locking spring 92 is fixedly connected to the surface of the locking rod 91, a locking block 93 is installed on the right side of the locking spring 92, the left end of the locking block 93 is fixedly connected to the lock buckle 86, triangular fixing blocks 94 are installed on both sides of the locking block 93, the rear end of the triangular fixing block 94 is fixedly connected to the circular shell, a buckle 95 is installed on the left side of the triangular fixing block 94, the right end of the buckle 95 is fixedly connected to the circular shell, a clamping rod 96 runs through the inside of the buckle 95, and the two ends of the clamping rod 96 are respectively fixedly connected to four corner fixing blocks 97, and the right ends of the four corner fixing blocks 97 are fixedly connected to the circular shell, and the locking rod 91 is inserted in the buckle 86 to fix the buffer device 8, so that the buffer device 8, the fastening device 9 and the circular shell are connected as a whole, so that the buffer device 8 can better share the force and play a role For better buffering effect, the locking spring 92 connects the buffer device 8 and the circular shell to play a locking and fixing role. The locking block 93 is fixedly connected to the locking buckle 86, so that the fastening device 9 fixes the buffer device 8. The triangular fixing blocks 94 at both ends of the locking rod 91 are fixedly connected to the inner wall of the circular shell, so that the fastening device 9 locks and fixes the circular shell from the inside. The buckle 95 is fixedly connected to the circular shell, and the clamping rod 96 passes through the buckle 95. The four-corner fixing blocks 97 at both ends of the clamping rod 96 are fixedly connected to the outer surface of the circular shell, so that the fastening device 9 locks and fixes the circular shell from the outside. Therefore, the fastening device 9 connects the buffer device 8 and the circular shell, and plays a role in locking and fixing the inside and outside of the circular shell at the same time, achieving a better fixing effect.

[0037] There are two fastening devices 9, and the two fastening devices 9 are symmetrically arranged with the motor shaft 3 as the center. The two fastening devices 9 are locked and fixed from both sides of the circular shell at the same time, and the two buffer devices 8 are locked and fixed at the same time, so that the two buffer devices 8 share the force of the circular shell at the same time, so that the circular shell can evenly disperse the force, preventing a certain part of the circular shell from being subjected to a high-intensity impact, thereby damaging the circular shell, extending the service life of the circular shell, and further locking and fixing the circular shell.

[0038] A specific application of this embodiment is: when the present invention is operated, the motor 1 is turned on, the motor 1 drives the motor shaft 3 to rotate, thereby driving the vacuum shaft 41 to rotate, and the transmission belt 43 drives the vacuum pump 42 to vacuum the rounded housing 2 and the sound insulation device 5 through the vacuum short tube 44 and the vacuum long tube 45, thereby performing a sound insulation operation on the breaker, so that the noise generated by the breaker during operation is greatly reduced, and at the same time, the threaded housing 61 is fixed on the surface of the drill bit 7, which is conducive to cutting and grinding stones and debris, and preventing the shaft of the drill bit 7 from being damaged by long-term wear of debris, thereby extending the breaker. The damping spring 62 reduces the vibration amplitude of the breaker through its elasticity when the breaker is working. The two ends of the damping spring 62 are respectively installed with a damping gasket 63 and a damping washer 64. The damping gasket 63 directly contacts the drill bit 7 to receive vibration. The damping washer 64 is fixed to the bottom of the circular shell, so that the damping spring 62 is evenly stressed, thereby achieving a better damping effect. At the same time, the adsorption base 81 adsorbs and fixes the circular shell to avoid damage to the buffer device 8 during hard contact when the breaker is working. The buffer washer 82 reduces the adsorption base 81 through the working of the breaker. The impact force delivered thereby causes the telescopic rod 84 to drive the buffer spring 83 fixed at the bottom of the top plate 85 to do reciprocating motion, thereby achieving a buffering effect on the circular shell; the locking rod 91 is inserted into the lock buckle 86 to fix the buffer device 8, thereby making the buffer device 8, the fastening device 9 and the circular shell connected as a whole, so that the buffer device 8 can better share the force and achieve a better buffering effect; the locking spring 92 connects the buffer device 8 and the circular shell to play a locking and fixing role; the locking block 93 is fixedly connected to the lock buckle 86, so that the fastening device 9 can fix the buffer device 8 The triangular fixing blocks 94 at both ends of the locking rod 91 are fixedly connected to the inner wall of the circular shell, so that the fastening device 9 can lock and fix the circular shell from the inside, the buckle 95 is fixedly connected to the circular shell, the clamping rod 96 passes through the buckle 95, and the four-corner fixing blocks 97 at both ends of the clamping rod 96 are fixedly connected to the outer surface of the circular shell, so that the fastening device 9 can lock and fix the circular shell from the outside, so that the fastening device 9 can connect the buffer device 8 and the circular shell, and lock and fix the inside and outside of the circular shell at the same time, so as to achieve a better fixing effect.

[0039] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A protective housing for a breaker hammer, comprising a motor (1), characterized in that: The front end of the motor (1) is fixedly connected to a rounded housing (2); the inner wall of the rounded housing (2) is rotatably connected to a motor shaft (3); the motor shaft (3) is rotatably connected to the motor (1) via a bearing; the motor shaft (3) is rotatably connected to a vacuum device (4) via a bearing; a sound insulation device (5) is arranged in front of the vacuum device (4); the rear end of the sound insulation device (5) is fixedly connected to the rounded housing (2); a damping device (6) is installed inside the sound insulation device (5); a drill bit (7) is fixedly connected to the inner wall of the damping device (6); the drill bit (7) is rotatably connected to the vacuum device (4) via a bearing; a buffer device (8) is arranged behind the drill bit (7); the front end of the buffer device (8) is fixedly connected to the rounded housing (2); the rear end of the buffer device (8) is fixedly connected to a fastening device (9); both ends of the fastening device (9) are fixedly connected to the rounded housing (2); The vacuum device (4) comprises a vacuum shaft (41), a vacuum pump (42) is arranged on the left side of the vacuum shaft (41) and is driven by a transmission belt (43), the bottom of the vacuum pump (42) is fixedly connected to the inner wall of the rounded shell (2), the front end of the vacuum pump (42) is fixedly connected to a vacuum short tube (44), a vacuum long tube (45) is arranged below the vacuum short tube (44), and the top of the vacuum long tube (45) is fixedly connected to the vacuum pump (42); The sound insulation device (5) comprises a buffer rubber layer (51), a threaded hole (52) is provided on the surface of the buffer rubber layer (51), a sound insulation cover (53) is fixedly connected to the top of the buffer rubber layer (51), an air extraction hole (55) is provided on the surface of the sound insulation cover (53), an air cushion membrane (54) is installed inside the sound insulation cover (53), and the bottom of the air cushion membrane (54) is fixedly connected to the buffer rubber layer (51); The damping device (6) comprises a threaded outer shell (61), the inner wall of the threaded outer shell (61) is fixedly connected to a damping spring (62), the bottom of the damping spring (62) is fixedly connected to a damping gasket (63), a damping washer (64) is arranged above the damping gasket (63), and the bottom of the damping washer (64) is fixedly connected to the damping spring (62); The buffer device (8) comprises an adsorption base (81), a buffer washer (82) is fixedly connected to the top of the adsorption base (81), a buffer spring (83) is fixedly connected to the top of the buffer washer (82), a telescopic rod (84) is installed inside the buffer spring (83), a top plate (85) is fixedly connected to the top of the telescopic rod (84), and a lock buckle (86) is fixedly connected to the top of the top plate (85); The fastening device (9) comprises a locking rod (91), a locking spring (92) being fixedly connected to the surface of the locking rod (91), a locking block (93) being installed on the right side of the locking spring (92), the left end of the locking block (93) being fixedly connected to the locking buckle (86), triangular fixing blocks (94) being installed on both sides of the locking block (93), the rear end of the triangular fixing block (94) being fixedly connected to the circular shell, a buckle (95) being installed on the left side of the triangular fixing block (94), the right end of the buckle (95) being fixedly connected to the circular shell, a clamping rod (96) passing through the interior of the buckle (95), the two ends of the clamping rod (96) being fixedly connected to four corner fixing blocks (97), the right ends of the four corner fixing blocks (97) being fixedly connected to the circular shell.

2. A breaker hammer protective housing according to claim 1, characterized in that: The number of the vacuum devices (4) is two, and the two vacuum devices (4) are symmetrically arranged with the motor shaft (3) as the center.

3. A breaker hammer protective housing according to claim 1, characterized in that: A long vacuum tube (45) runs through the interior of the air extraction hole (55) and extends to between the sound insulation cover (53) and the air cushion membrane (54).

4. A breaker hammer protective housing according to claim 1, characterized in that: The number of the buffer devices (8) is two, and the two buffer devices (8) are symmetrically arranged with the motor shaft (3) as the center.

5. The protective housing for a breaker hammer according to claim 1, characterized in that: The number of the fastening devices (9) is two, and the two fastening devices (9) are symmetrically arranged with the motor shaft (3) as the center.

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