Durable mute barrel

Abstract

A durable mute barrel comprises a mute barrel body, a mute handle (3), a durable mute connector (2) and a glue hanging net (17). According to the durable mute barrel, noise generated in the use process of the barrel can be effectively reduced, the service life of the barrel is effectively prolonged, and the durable mute barrel is well helpful for improving the life quality of people.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of barrels, it is a durable type mute barrel that can be used for a long time and low noise and friendly to floor when using. BACKGROUND

[0002] In people's production and life, the use of metal barrels, especially stainless steel barrels, is almost everywhere, but metal barrels will produce a large noise and cause friction damage to the floor when they contact or collide with the floor. The connection between the lifting beam and the barrel body will produce a large or even sharp friction sound when in use. The handle on the lifting beam will also produce a large and sharp noise when it contacts or collides with the barrel body. These noises affect people's quality of life and can make people feel irritable in severe cases. The traditional hook-type lifting beam is severely worn at the contact point during use, and even the handle can break due to wear and tear. This makes the barrel body be discarded prematurely in good condition.

[0003] There is no product on the market that is durable, silent, and friendly to the floor during use, which has prompted the development and application of the utility model. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims to provide a durable mute barrel. By setting a rubber ring or a rubber pad or a rubber substance on the load-bearing wall that contacts the ground at the bottom of the barrel body, and by designing the durability and silence of the connection between the lifting beam and the barrel body, and by setting a sound-absorbing ring or a sound-absorbing sleeve at the contact point between the handle and the barrel body, the traditional stainless steel barrel can be silent, durable, and friendly to the floor. This is helpful in improving people's quality of life.

[0005] The utility model solves the technical problem by adopting the following technical scheme:

[0006] In order to achieve the above-mentioned purpose, the durable silent barrel of the present invention is characterized in that: a sound-absorbing bottom pad 4 or a colloid 18 is provided at the bottom of the load-bearing wall 16 where the barrel body contacts the ground, so that the barrel body cannot directly contact the floor, and the two ends of the handle are connected to the barrel body through a durable silent connector 2, and the middle of the handle contacts the barrel body through a silencer ring 20, so that the handle cannot directly contact the barrel body. The durable silent barrel comprises: a silent barrel body, comprising a barrel body 1 and a load-bearing wall 16, a durable silent connector 2 is provided on the barrel edge wall 5 of the barrel body 1, and a sound-absorbing bottom pad 4 or a colloid 18 is provided at the bottom of the load-bearing wall 16; a silent handle 3, comprising A handle, a handle head, and a handle 19, wherein the handle head is provided with an axis hole, and a silencer ring 20 is provided on the handle 19; a durable silent connector 2, including a silencer pad type connector or a pie-axis type connector; a glue net 17, which is an annular net whose shape matches the bottom of the load-bearing wall 16; the silencer bottom pad 4 or the glue 18 is arranged at the bottom of the load-bearing wall 16 of the barrel body, the silent handle 3 is connected to the barrel body 1 through the durable silent connector 2, and the middle part of the handle contacts the barrel body through the silencer ring 20, so that the barrel body is very silent during use, especially the barrel body made of metal, which is not only silent but also very durable.

[0007] The sound-absorbing base pad 4 is arranged at the bottom of the load-bearing wall 16. A slot is provided in the sound-absorbing base pad 4. The shape of the slot is adapted to the bottom of the load-bearing wall 16. The bottom of the load-bearing wall 16 is inserted into the slot of the sound-absorbing base pad 4. The sound-absorbing base pad 4 is also provided with a support nail or protrusion 18A.

[0008] The steps for setting the glue 18 at the bottom of the load-bearing wall 16 are as follows: (1) putting the glue net 17 on the bottom of the load-bearing wall 16; (2) the glue is in a fluid state or the glue is heated and melted into a fluid state; (3) the bottom of the load-bearing wall 16 is immersed in the fluid glue; (4) after the glue is hung, the fluid glue at the bottom of the load-bearing wall and on the glue net 17 solidifies in the air.

[0009] A handle 19 is provided in the middle of the silent handle 3, and a silencer ring 20 is provided on the handle 19. The silencer ring 20 is made of a soft colloid material with micropores inside. The silencer ring 20 is arranged at the contact point between the handle and the barrel body, so that the silent handle 3 cannot directly contact the barrel body.

[0010] The muffling pad type connector comprises a bottomed beam connecting cap 7, a wear-resistant muffling load bearing pad 8, a beam shaft 9, a pin shaft sleeve 10, and a bolt 11. The bottomed beam connecting cap 7 is provided with a cap brim 7F, a first through hole 7D and a second through hole 7E. The top of the bottomed beam connecting cap 7 is provided with a first pin shaft through hole 7B, and the root is provided with a bottoming protrusion 7C. The beam shaft 9 is provided with a retaining wall 9A, a load bearing section 9B, a pin shaft section 9C, and a ridge or a concave-convex 9D in sequence. The beam shaft is provided with a threaded hole, and the end face of the threaded hole is provided with anti-slip teeth 9E. The wear-resistant muffling load bearing pad 8 is sleeved on the beam shaft 9, the pin shaft sleeve 10 pins the wear-resistant muffling load bearing pad 8, and then the wear-resistant muffling load bearing pad 8 is arranged in the bottomed beam connecting cap 7. The shaft hole 3B on the beam head at both ends of the silent beam 3 is sleeved on the ridge or the concave-convex 9D, the bolt 11 is screwed into the threaded hole of the beam shaft, then the first rivet 6 passes through the first through hole 7D and then passes through the first rivet through hole 5A to rivet the muffling pad type connector with the barrel body, and the second rivet 6A passes through the second through hole 7E and then passes through the second rivet through hole 5B to rivet the muffling pad type connector with the barrel body.

[0011] The muffling pad type connector comprises a bottomed beam connecting cap 7, a wear-resistant muffling load bearing pad 8, a beam shaft 9, a pin shaft sleeve 10, and a bolt 11. The bottomed beam connecting cap 7 is provided with a cap brim 7F, a first through hole 7D and a second through hole 7E. The top of the bottomed beam connecting cap 7 is provided with a first pin shaft through hole 7B, and the root is provided with a bottoming protrusion 7C. The beam shaft 9 is provided with a retaining wall 9A, a load bearing section 9B, a pin shaft section 9C, and a ridge or a concave-convex 9D in sequence. The beam shaft is provided with a threaded hole, and the end face of the threaded hole is provided with anti-slip teeth 9E. The wear-resistant muffling load bearing pad 8 is sleeved on the beam shaft 9, the pin shaft sleeve 10 pins the wear-resistant muffling load bearing pad 8, and then the wear-resistant muffling load bearing pad 8 is arranged in the bottomed beam connecting cap 7. The shaft hole 3B on the beam head at both ends of the silent beam 3 is sleeved on the ridge or the concave-convex 9D, the bolt 11 is screwed into the threaded hole of the beam shaft, then the first rivet 6 passes through the first through hole 7D and then passes through the first rivet through hole 5A to rivet the muffling pad type connector with the barrel body, and the second rivet 6A passes through the second through hole 7E and then passes through the second rivet through hole 5B to rivet the muffling pad type connector with the barrel body.

[0012] Through the above design, the noise generated by the beam is eliminated, the friction surface of the beam and the barrel is greatly increased, so that the service life of the beam is greatly increased, the service life of the barrel is also greatly extended, and the beam will not produce large noise when moving, and the load bearing capacity of the beam is further strengthened. The muffling bottom pad 4 or the rubber material is arranged on the load bearing wall 16 in contact with the ground at the bottom of the barrel, so that the barrel will not produce large noise when in contact with the floor, and is very friendly to the floor.

[0013] The durable mute barrel can effectively reduce the noise generated during use, effectively improve the service life of the barrel, and effectively reduce the damage of the metal barrel to the floor. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model is further explained below in combination with the drawings and examples.

[0015] Figure 1 It is the three-dimensional appearance view of the durable mute barrel of the utility model;

[0016] Figure 2 It is the connection section view of the lifting beam and the muffling pad type connector and the barrel rim;

[0017] Figure 3 It is the exploded view of the lifting beam and the muffling pad type connector and the barrel rim connection;

[0018] Among them Figure 3 A is the schematic diagram of the barrel rim wall;

[0019] Figure 3 B is the three-dimensional appearance view of the lifting beam shaft;

[0020] Figure 3 C is the three-dimensional appearance view of the wear-resistant muffling load-bearing pad;

[0021] Figure 3 D is the three-dimensional appearance view of the pin shaft sleeve;

[0022] Figure 3 E is the three-dimensional appearance view of the bottom-receiving type lifting beam connecting cap;

[0023] Figure 3 F is the three-dimensional appearance view of the lifting beam head and the bolt;

[0024] Figure 4 It is the connection section view of the lifting beam and the pie-shaped shaft type connector and the barrel rim;

[0025] Figure 5 It is the exploded view of the lifting beam and the pie-shaped shaft type connector and the barrel rim connection;

[0026] Among them Figure 5 A is the schematic diagram of the barrel rim wall;

[0027] Figure 5 B is the three-dimensional appearance view of the pie-shaped load-bearing shaft;

[0028] Figure 5 C is the three-dimensional appearance view of the load-bearing sleeve;

[0029] Figure 5 D is the three-dimensional appearance view of the muffling sleeve;

[0030] Figure 5E is a three-dimensional appearance diagram of the straight bottom handle connecting cap;

[0031] Figure 5 F is a three-dimensional appearance diagram of the handle head and bolt;

[0032] Figure 6 This is a cross-sectional view of the connection between the glue hanging net and the glue material and the bottom of the load-bearing wall;

[0033] Figure 7 This is an appearance diagram of the connection between the silencer ring or silencer sleeve and the handle;

[0034] In the figure, 1. barrel body, 2. durable silent connector, 3. silent handle, 3A. handle head, 3B. shaft hole, 4. sound-absorbing bottom pad, 5. barrel edge wall, 5A. first rivet hole, 5B. second rivet hole, 6. first rivet, 6A. second rivet, 7. bottom-retracting handle connecting cap, 7A. cap, 7B. first pin shaft through hole, 7C. bottom-retracting protrusion, 7D. first through hole, 7E. second through hole, 7F. cap edge, 8. wear-resistant and sound-absorbing load-bearing pad, 8A. load-bearing surface, 8B. pin shaft retaining wall surface, 8C. through hole, 9. handle shaft, 9A. retaining wall, 9B. load-bearing section, 9C. pin Shaft section, 9D. Ridge or concave-convex, 9E. Anti-slip teeth, 10. Pin sleeve, 10A. Through hole, 10B. Sleeve, 10C. Second retaining wall, 11. Bolt, 12. Straight-bottom handle connecting cap, 12A. Straight bottom cap, 12B. Second pin through hole, 13. Silencer sleeve, 13A. Third through hole, 13B. First retaining wall, 14. Load-bearing sleeve, 15. Piece-shaped load-bearing shaft, 15A. Ridge or concave-convex, 15B. Anti-slip teeth, 15C. Load-bearing cake, 16. Load-bearing wall, 17. Glue net, 18. Glue, 18A. Support nail or protrusion, 19. Handle, 20. Silencer ring. DETAILED DESCRIPTION

[0035] The durable silent barrel of the present invention will now be explained in detail with reference to the accompanying drawings.

[0036] Taking all the drawings into consideration, the overall technical solution of the present invention is as follows:

[0037] The utility model is characterized in that: a sound-absorbing bottom pad 4 or a colloid 18 is provided at the bottom of the load-bearing wall 16 where the barrel body contacts the ground, so that the barrel body cannot directly contact the floor; both ends of the handle are connected to the barrel body through a durable silent connector 2; the middle of the handle contacts the barrel body through a silencer ring 20, so that the handle cannot directly contact the barrel body; the durable silent barrel comprises:

[0038] The silent barrel comprises a barrel body 1 and a load-bearing wall 16. A durable silent connector 2 is provided on the barrel edge wall 5 of the barrel body 1, and a sound-absorbing bottom pad 4 or a colloid 18 is provided at the bottom of the load-bearing wall 16.

[0039] The mute lifting beam 3 comprises a lifting beam, a lifting beam head, and a handle 19, wherein the lifting beam head is provided with an axle hole, and the handle 19 is provided with a sound-absorbing ring or a sound-absorbing sleeve 20;

[0040] The durable mute connector 2 comprises a sound-absorbing pad type connector or a pie axle type connector;

[0041] The hanging glue net 17 is a ring-shaped net matched with the bottom of the load-bearing wall 16;

[0042] The sound-absorbing bottom pad 4 or the glue 18 is arranged at the bottom of the load-bearing wall 16 of the barrel body, the mute lifting beam 3 is connected to the barrel body 1 through the durable mute connector 2, and the middle part of the lifting beam is in contact with the barrel body through the sound-absorbing ring 20, so that the barrel body is very mute during use, especially the barrel body made of metal, which is not only mute but also durable.

[0043] In Figure 1 and Figure 6 , this is the three-dimensional appearance view of the durable mute barrel of the utility model, the connection sectional view of the hanging glue net and the glue and the bottom of the load-bearing wall;

[0044] In the figure, the sound-absorbing bottom pad 4 is arranged at the bottom of the load-bearing wall 16, the sound-absorbing bottom pad 4 is provided with a slot, the shape of the slot is matched with the bottom of the load-bearing wall 16, the bottom of the load-bearing wall 16 is inserted into the slot of the sound-absorbing bottom pad 4, and the sound-absorbing bottom pad 4 is further provided with a supporting nail or a protrusion 18A.

[0045] In this way, the load-bearing wall 16 at the bottom of the barrel body 1 will not be in direct contact with the floor, but the sound-absorbing bottom pad 4 is in direct contact with the floor, so that the barrel body can greatly reduce noise when in contact with the floor and will not damage the floor, and is very friendly to the floor. The glue can be arranged at the bottom of the load-bearing wall 16 through the hanging glue net 17, and the barrel bottom provided with the glue will not be in direct contact with the floor, but the glue is in contact with the floor, so that the barrel body can greatly reduce noise when in contact with the floor. Such a design can make the traditional metal barrel mute, durable and friendly to the floor, which is of great help to improve the quality of people's life. The steps of arranging the glue 18 at the bottom of the load-bearing wall 16 are as follows: (1) the hanging glue net 17 is sleeved at the bottom of the load-bearing wall 16; (2) the glue is in a fluid state or the glue is heated and melted into a fluid state; (3) the bottom of the load-bearing wall 16 is soaked in the fluid glue; (4) after the glue is hung, the fluid glue at the bottom of the load-bearing wall and the hanging glue net 17 is solidified in the air.

[0046] In Figure 2 and Figure 3 , this is the connection sectional view of the lifting beam and the sound-absorbing pad type connector and the barrel rim and the exploded view of the connection of the lifting beam and the sound-absorbing pad type connector and the barrel rim, wherein Figure 3 A is a schematic view of a barrel rim wall, Figure 3 B is a three-dimensional appearance view of a lifting beam axle, Figure 3C is the stereoscopic appearance of the wear-resistant sound-absorbing load-bearing pad, Figure 3 D is the stereoscopic appearance of the pin shaft sleeve, Figure 3 E is the stereoscopic appearance of the bottom-receiving type beam connecting cap, Figure 3 F is the stereoscopic appearance of the beam head and bolt.

[0047] In the figure, the sound-absorbing pad type connector includes a bottom-receiving type beam connecting cap 7, a wear-resistant sound-absorbing load-bearing pad 8, a beam shaft 9, a pin shaft sleeve 10, and a bolt 11, wherein the bottom-receiving type beam connecting cap 7 is provided with a cap brim 7F, the cap brim is provided with a first through hole 7D and a second through hole 7E, the top of the bottom-receiving type beam connecting cap 7 is provided with a first pin shaft through hole 7B, and the root is provided with a bottom-receiving protrusion 7C. The beam shaft 9 is sequentially provided with a retaining wall 9A, a load-bearing section 9B, a pin shaft section 9C, and a ridge or concave-convex 9D, and the beam shaft is provided with a threaded hole, and the end face of the threaded hole is provided with an anti-skid tooth 9E. The wear-resistant sound-absorbing load-bearing pad 8 is sleeved on the beam shaft 9, the pin shaft sleeve 10 pins the wear-resistant sound-absorbing load-bearing pad 8, then the wear-resistant sound-absorbing load-bearing pad 8 is arranged in the bottom-receiving type beam connecting cap 7, the shaft hole on the beam head at both ends of the silent beam 3 is sleeved on the ridge or concave-convex 9D, the bolt 11 is screwed into the threaded hole of the beam shaft, then the first rivet 6 passes through the first through hole 7D and then passes through the first rivet through hole 5A to rivet the sound-absorbing pad type connector with the barrel body, and the second rivet 6A passes through the second through hole 7E and then passes through the second rivet through hole 5B to rivet the sound-absorbing pad type connector with the barrel body.

[0048] This design, the noise generated by the beam is eliminated by the wear-resistant sound-absorbing load-bearing pad 8, the friction surface between the beam and the cap 7A is greatly increased, so that the service life of the beam is greatly increased, the service life of the barrel is also greatly extended, and the beam movement will not produce noise.

[0049] In Figure 4 and Figure 5 , this is the connection cross-sectional view of the beam and the pie-shaped shaft type connector and the barrel along, and the exploded view of the beam and the pie-shaped shaft type connector and the barrel along connection, wherein Figure 5 A is a schematic view of the barrel along wall, Figure 5 B is the stereoscopic appearance of the pie-shaped load-bearing shaft, Figure 5 C is the stereoscopic appearance of the load-bearing sleeve, Figure 5 D is the stereoscopic appearance of the sound-absorbing sleeve, Figure 5 E is the stereoscopic appearance of the straight bottom type beam connecting cap, Figure 5 F is the stereoscopic appearance of the beam head and bolt.

[0050] In the figure, the pie axle type connector comprises a straight bottom type lifting beam connecting cap 12, a silencer sleeve 13, a bearing sleeve 14 and a pie bearing axle 15, wherein the straight bottom type lifting beam connecting cap 12 is provided with a cap brim 7F, the cap brim is provided with a first through hole 7D and a second through hole 7E, the top of the straight bottom type lifting beam connecting cap 12 is provided with a second pin shaft through hole 12B, one side of the silencer sleeve 13 is provided with a third through hole 13A, the other side is provided with a first retaining wall 13B, one end of the pie bearing axle 15 is provided with a bearing pie 15C, the other end is provided with a bolt shaft, the bolt shaft is provided with a ridge or a concave-convex 9D, and the threaded hole end face of the bolt shaft is provided with an anti-skid tooth 9E. The silencer sleeve 13 is arranged in the straight bottom type lifting beam connecting cap 12, the bearing sleeve 14 is arranged in the silencer sleeve 13, the shaft hole on the lifting beam head at the two ends of the mute lifting beam 3 is sleeved with the ridge or the concave-convex 9D, the bolt 11 is screwed into the threaded hole of the bolt shaft, then the first rivet 6 is passed through the first through hole 7D and then passed through the first rivet through hole 5A to rivet the pie axle type connector with the barrel body, and the second rivet 6A is passed through the second through hole 7E and then passed through the second rivet through hole 5B to rivet the pie axle type connector with the barrel body.

[0051] The design can eliminate the noise generated by the lifting beam through the silencer sleeve 13, and greatly increase the friction surface of the lifting beam through the pie bearing axle 15 and the bearing sleeve 14, so that the service life of the lifting beam and the barrel is greatly increased, and the noise generated by the movement of the lifting beam is eliminated.

[0052] In Figure 7 , it is the appearance view of the connection between the silencer ring or the silencer sleeve and the handle.

[0053] In the figure, the middle part of the mute lifting beam 3 is provided with a handle 19, the handle 19 is provided with a silencer ring 20, the silencer ring 20 is arranged at the contact position of the handle 19 and the barrel body, the silencer ring 20 is made of soft rubber material, and the material has micropores in the inside, and the silencer ring 20 is arranged at the contact position of the handle and the barrel body, so that the mute lifting beam 3 cannot directly contact the barrel body.

[0054] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. In the above embodiments, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A durable silent barrel, comprising a barrel body and a handle, characterized by: The bottom of the load-bearing wall (16) where the barrel body contacts the ground is provided with a sound-absorbing bottom pad (4) or a colloid (18) so that the barrel body cannot directly contact the floor. The two ends of the handle are connected to the barrel body through a durable silent connector (2). The middle of the handle contacts the barrel body through a silencer ring (20) so that the handle cannot directly contact the barrel body. The durable silent barrel comprises: A silent barrel body comprises a barrel body (1) and a load-bearing wall (16); a durable silent connector (2) is provided on the barrel edge wall (5) of the barrel body (1); and a sound-absorbing bottom pad (4) or a colloid (18) is provided at the bottom of the load-bearing wall (16); A silent handle (3) comprises a handle, a handle head, and a handle (19), wherein the handle head is provided with an axial hole, and the handle (19) is provided with a silencer ring (20); Durable silent connectors (2), including silent pad type connectors or pancake type connectors; A glue hanging net (17), which is a ring-shaped net whose shape matches the bottom of the load-bearing wall (16); The sound-absorbing bottom pad (4) or the colloid (18) is arranged at the bottom of the load-bearing wall (16) of the barrel body, the sound-absorbing handle (3) is connected to the barrel body (1) through a durable sound-absorbing connector (2), and the middle part of the handle contacts the barrel body through a sound-absorbing ring (20).

2. The durable silent barrel according to claim 1, characterized in that: The sound-absorbing base pad (4) is arranged at the bottom of the load-bearing wall (16); a slot is provided in the sound-absorbing base pad (4); the shape of the slot is adapted to the bottom of the load-bearing wall (16); the bottom of the load-bearing wall (16) is inserted into the slot of the sound-absorbing base pad (4); and a supporting nail or protrusion (18A) is also provided on the sound-absorbing base pad (4).

3. The durable silent barrel according to claim 1, characterized in that: The middle part of the silent handle (3) is provided with a handle (19), and the handle (19) is provided with a silencer ring (20). The silencer ring (20) is made of a soft colloid material with micropores inside. The silencer ring (20) is arranged at the contact point between the handle and the barrel body, so that the silent handle (3) cannot directly contact the barrel body.

4. The durable silent barrel according to claim 1, characterized in that: The muffler pad type connector comprises a bottom-retracting handle connecting cap (7), a wear-resistant and muffler bearing pad (8), a handle shaft (9), a pin shaft sleeve (10), and a bolt (11), wherein the bottom-retracting handle connecting cap (7) is provided with a cap brim (7F), a first through hole (7D) and a second through hole (7E) are provided on the cap brim, a first pin shaft through hole (7B) is provided at the top of the bottom-retracting handle connecting cap (7), and a bottom-retracting protrusion (7C) is provided at the root, the handle shaft (9) is provided with a retaining wall (9A), a bearing section (9B), a pin shaft section (9C), and an edge or concave-convex section (9D) in sequence, a screw hole is provided in the handle shaft, and an anti-slip tooth (9E) is provided on the end face of the screw hole; The wear-resistant and sound-absorbing load-bearing pad (8) is sleeved on the handle shaft (9), and the pin sleeve (10) pins the wear-resistant and sound-absorbing load-bearing pad (8). Then, the wear-resistant and sound-absorbing load-bearing pad (8) is set in the bottom-retracting handle connecting cap (7). The shaft holes (3B) on the handle heads at both ends of the silent handle (3) sleeve the ridges or concave-convex (9D). The bolt (11) is screwed into the screw hole of the handle shaft. Then, the first rivet (6) passes through the first through hole (7D) and then passes through the first rivet through hole (5A) to rivet the sound-absorbing pad type connector to the barrel body. The second rivet (6A) passes through the second through hole (7E) and then passes through the second rivet through hole (5B) to rivet the sound-absorbing pad type connector to the barrel body.

5. The durable silent barrel according to claim 1, characterized in that: The pancake-shaft type connector comprises a straight-bottomed handle connecting cap (12), a silencer sleeve (13), a load-bearing sleeve (14), and a pancake-shaped load-bearing shaft (15), wherein the straight-bottomed handle connecting cap (12) is provided with a brim (7F), the brim is provided with a first through hole (7D) and a second through hole (7E), the top of the straight-bottomed handle connecting cap (12) is provided with a second pin shaft through hole (12B), one side of the silencer sleeve (13) is provided with a third through hole (13A), and the other side is provided with a first retaining wall (13B), one end of the pancake-shaped load-bearing shaft (15) is provided with a load-bearing pancake (15C), and the other end is provided with a bolt shaft, the bolt shaft is provided with an edge or concave-convex (9D), and the screw hole end surface of the bolt shaft is provided with an anti-slip tooth (9E); The silencer sleeve (13) is arranged in the straight bottom handle connecting cap (12), the bearing sleeve (14) is arranged in the silencer sleeve (13), the bearing pancake (15C) on the pancake-shaped bearing shaft (15) is arranged in the bearing sleeve (14), the shaft holes on the handle heads at both ends of the silent handle (3) cover the ridges or concave-convex (9D), the bolt (11) is screwed into the screw hole of the bolt shaft, and then the first rivet (6) passes through the first through hole (7D) and then through the first rivet through hole (5A) to rivet the pancake shaft connector to the barrel body, and the second rivet (6A) passes through the second through hole (7E) and then through the second rivet through hole (5B) to rivet the pancake shaft connector to the barrel body.

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