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 invention relates to a barrel, which is a durable silent barrel which can be used for a long time, has low noise during use and is floor-friendly. Background Art

[0002] In people's production and life, the use of metal buckets, especially stainless steel buckets, is almost everywhere. However, when the metal bucket contacts or collides with the floor, it will produce a loud noise and cause friction damage to the floor. The connection between the handle and the barrel body will produce a loud or even sharp friction sound when in use. The handle on the handle will also make a loud and sharp noise when in contact or collides with the barrel body. These noises affect people's quality of life and can make people irritable in severe cases. The traditional hook-type handle is severely worn at the contact point during use, and the handle may even break, causing the barrel body to be discarded prematurely when in good condition.

[0003] There is currently no product on the market that is both durable, silent, and floor-friendly during use, which has prompted the development and application of the present invention. Summary of the invention

[0004] The purpose of the present invention is to provide a durable silent barrel. As long as a rubber ring or a rubber pad or a colloid material is set on the load-bearing wall where the bottom of the barrel body contacts the ground, a durable and silent design is performed at the connection device between the handle and the barrel body, and a silencer ring or a silencer sleeve is set at the contact between the handle and the barrel body, the traditional barrel can be made silent, durable and floor-friendly, which is of great help to improving people's quality of life.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[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 bottom plate, 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 whole body through a silencer ring or a silencer sleeve 20, so that the handle cannot directly contact the barrel body. The durable silent barrel comprises: a silent barrel body, including 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, including a handle, The handle 19, wherein the handle is provided with an axial hole, and the handle 19 is provided with a silencer ring or silencer sleeve 20; the durable silent connector 2, including a silencer pad type connector or a pancake shaft type connector; the hanging glue net 17, which is a ring-shaped 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 is in contact with the barrel body through the silencer ring or silencer sleeve 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. The silencer bottom pad 4 is arranged at the bottom of the load-bearing wall 16, and a slot is provided in the silencer bottom 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 silencer bottom pad 4, and the silencer bottom pad 4 is also provided with a support nail or protrusion 18A.

[0007] The steps for setting the colloid 18 at the bottom of the load-bearing wall 16 are: (1). Put the glue net 17 on the bottom of the load-bearing wall 16; (2). The colloid is in a fluid state or the colloid is heated and melted into a fluid state; (3). The bottom of the load-bearing wall 16 is immersed in the fluid colloid; (4). After the glue is hung, the fluid colloid at the bottom of the load-bearing wall and on the glue net 17 solidifies in the air.

[0008] A handle 19 is provided in the middle of the handle 3, and a silencer ring or silencer sleeve 20 is provided on the handle 19. The silencer ring or silencer sleeve 20 is made of a soft colloid material with micropores inside. The silencer ring or silencer sleeve 20 is arranged at the contact point between the handle and the barrel body, so that the handle 3 cannot directly contact the barrel body.

[0009] The silencer pad type connector includes a bottom-retracting beam connecting cap 7, a wear-resistant and sound-absorbing load-bearing pad 8, a beam shaft 9, a pin sleeve 10, and a bolt 11, wherein the bottom-retracting beam connecting cap 7 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 bottom-retracting beam connecting cap 7 is provided with a through hole 7B and the root is provided with a bottom-retracting protrusion 7C, the beam shaft 9 is provided with a retaining wall 9A, a load-bearing section 9B, a pin section 9C, and edges or protrusions 9D in sequence, a screw hole is provided in the beam shaft, and an anti-slip tooth 9E is provided on the end face of the screw hole; the wear-resistant The silencer load-bearing pad 8 is sleeved on the handle shaft 9, and the pin sleeve 10 pins the wear-resistant silencer load-bearing pad 8. Then the wear-resistant silencer load-bearing pad 8 is set in the bottom-retracting handle connecting cap 7. The axial holes on the handle heads at both ends of the handle 3 sleeve the edges or bumps 9D. The bolts 11 are screwed into the screw holes of the handle shaft. Then the first rivet 6 passes through the first through hole 7D and then through the first rivet through hole 5A to rivet the silencer pad type connector to the barrel body. The second rivet 6A passes through the second through hole 7E and then through the second rivet through hole 5B to rivet the silencer pad type connector to the barrel body.

[0010] The pancake-shaft type connector includes 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 12E, and the brim is provided with a rivet through hole 12C and a rivet through hole 12D, a through hole 12B is provided on the top of the straight-bottomed handle connecting cap 12, a through hole 13A is provided on one side of the silencer sleeve 13, and a retaining wall 13B is provided on the other side, a load-bearing pancake 15C is provided at one end of the pancake-shaped load-bearing shaft 15, and a bolt shaft is provided at the other end, and an edge or concave-convex 15A is provided on the bolt shaft , the end face of the screw hole of the bolt shaft is provided with anti-slip teeth 15B; the silencer sleeve 13 is arranged in the straight bottom handle connecting cap 12, the load-bearing sleeve 14 is arranged in the silencer sleeve 13, the axial holes on the handle heads at both ends of the handle 3 cover the edges or bumps 15A, the bolt 11 is screwed into the screw hole of the bolt shaft, and then the first rivet 6 passes through the rivet through hole 12C and then through the first rivet through hole 5A to rivet the pancake shaft type connector to the barrel body, and the second rivet 6A passes through the rivet through hole 12D and then through the second rivet through hole 5B to rivet the pancake shaft type connector to the barrel body.

[0011] Through the above design, the noise generated by the handle is eliminated, and the friction surface between the handle and the barrel body will be greatly increased, so that the service life of the handle will be greatly increased, the service life of the barrel will also be greatly extended, the handle will not generate loud noise when moving, and the bearing capacity of the handle is further enhanced. The sound-absorbing bottom pad 4 or the colloid is arranged on the load-bearing wall 16 at the bottom of the barrel body that contacts the ground, so that the barrel will not generate loud noise when contacting the floor, and it is very friendly to the floor.

[0012] The beneficial effect of the present invention is that the durable silent barrel of the present invention can effectively reduce the noise generated by the barrel during use, effectively increase the service life of the barrel, and effectively reduce the damage of the metal barrel to the floor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 This is a three-dimensional appearance diagram of the durable silent barrel of the present invention;

[0015] Figure 2 It is a cross-sectional view of the connection between the handle, the silencer pad connector and the barrel edge;

[0016] Figure 3 It is an exploded view of the connection between the handle and the sound-absorbing pad type connector and the barrel edge;

[0017] in Figure 3 A is a schematic diagram of the barrel along the wall;

[0018] Figure 3 B is a three-dimensional appearance diagram of the handle shaft;

[0019] Figure 3 C is a three-dimensional appearance diagram of the wear-resistant and sound-absorbing load-bearing pad;

[0020] Figure 3 D is a three-dimensional appearance diagram of the pin sleeve;

[0021] Figure 3 E is a three-dimensional appearance diagram of the bottom-retracting type handle connecting cap;

[0022] Figure 3 F is a three-dimensional appearance diagram of the handle head and bolts;

[0023] Figure 4 It is a cross-sectional view of the connection between the handle, the pancake-shaft connector and the barrel edge;

[0024] Figure 5 This is an exploded view of the connection between the handle and the pancake-shaft connector and the barrel edge;

[0025] in Figure 5 A is a schematic diagram of the barrel along the wall;

[0026] Figure 5 B is a three-dimensional appearance diagram of the pie-shaped load-bearing shaft;

[0027] Figure 5 C is a three-dimensional appearance diagram of the load-bearing sleeve;

[0028] Figure 5 D is a three-dimensional appearance diagram of the silencer sleeve;

[0029] Figure 5 E is a three-dimensional appearance diagram of a straight bottom handle connecting cap;

[0030] Figure 5 F is a three-dimensional appearance diagram of the handle head and bolts;

[0031] Figure 6 It 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;

[0032] Figure 7 It is the appearance diagram of the connection between the silencer ring or silencer sleeve and the handle;

[0033] In the figure, 1. barrel body, 2. durable silent connector, 3. silent handle, 3A. handle head, 3B. shaft hole, 4. silencer bottom pad, 5. barrel wall, 5A. first rivet hole, 5B. second rivet hole, 6. first rivet, 6A. second rivet, 7. bottom-retracting handle connection cap, 7A. cap, 7B. through hole, 7C. bottom-retracting protrusion, 7D. first through hole, 7E. second through hole, 7F. cap edge, 8. wear-resistant and silent 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-skid teeth, 10. Pin sleeve, 10A. Through hole, 10B. Bushing, 10C. Retaining wall, 11. Bolt, 12. Straight bottom handle connecting cap, 12A. Straight bottom cap, 12B. Through hole, 12C. Rivet through hole, 12D. Rivet through hole, 12E. Cap brim, 13. Silencing sleeve, 13A. Through hole, 13B. Retaining wall, 14. Load-bearing sleeve, 15. Piece-shaped load-bearing shaft, 15A. Ridge or concave-convex, 15B. Anti-skid teeth, 15C. Load-bearing cake, 16. Load-bearing wall, 17. Glue hanging net, 18. Glue, 18A. Support nails or protrusions, 19. Handle, silencer ring or silencer sleeve. DETAILED DESCRIPTION

[0034] The durable soundproof barrel of the present invention will now be explained in detail with reference to the accompanying drawings.

[0035] Based on all the drawings, the overall technical solution of the present invention is as follows:

[0036] 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 bottom plate; both ends of the handle are connected to the barrel body through a durable silent connector 2; the middle of the handle contacts the whole body through a silencer ring or silencer sleeve 20, so that the handle cannot directly contact the barrel body; the durable silent barrel comprises:

[0037] The silent barrel body comprises a barrel body 1 and a load-bearing wall 16. A durable silent connector 2 is arranged on the barrel edge wall 5 of the barrel body 1, and a sound-absorbing bottom pad 4 or a colloid 18 is arranged at the bottom of the load-bearing wall 16.

[0038] The 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 or a silencer sleeve 20;

[0039] Durable silent connector 2, including a silencer pad type connector or a pancake type connector;

[0040] The glue hanging net 17 is a ring-shaped net whose shape matches the bottom of the load-bearing wall 16;

[0041] The sound-absorbing base pad 4 or the colloid material 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 whole body through a sound-absorbing ring or a sound-absorbing sleeve 20. In this way, the barrel body is very silent during use, especially the barrel body made of metal, which is not only silent but also very durable.

[0042] exist Figure 1 and Figure 6 In the figure, this is a three-dimensional appearance diagram of the durable silent barrel of the present invention, and a cross-sectional diagram of the connection between the glue hanging net and the glue material and the bottom of the load-bearing wall;

[0043] In the figure, 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 supporting nail or protrusion 18A.

[0044] In this way, the load-bearing wall 16 at the bottom of the barrel 1 will not directly contact the floor, but the sound-absorbing bottom pad 4 will directly contact the floor, so the barrel will greatly reduce noise when it contacts the floor, and will not damage the floor, which is very friendly to the floor. The bottom of the load-bearing wall 16 can be provided with a glue-hanging net 17, and the barrel bottom provided with the glue will not directly contact the floor, but the glue will contact the floor, so the barrel will greatly reduce noise when it contacts the floor. Such a design can make the traditional metal barrel both silent, durable and floor-friendly, which is very helpful for improving people's quality of life. The steps of setting the glue 18 at the bottom of the load-bearing wall 16 are: (1). Put the glue-hanging 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-hanging net 17 solidifies in the air.

[0045] exist Figure 2 and Figure 3 This is a cross-sectional view of the connection between the handle, the muffler pad connector and the barrel edge, and an exploded view of the connection between the handle, the muffler pad connector and the barrel edge. Figure 3 A is a schematic diagram of the barrel wall. Figure 3 B is the three-dimensional appearance of the handle shaft. Figure 3 C is the three-dimensional appearance of the wear-resistant and sound-absorbing load-bearing pad. Figure 3 D is the three-dimensional appearance of the pin sleeve. Figure 3 E is a three-dimensional appearance diagram of the bottom-retracting handle connecting cap. Figure 3 F is a three-dimensional appearance diagram of the handle head and bolts.

[0046] In the figure, the silencer pad type connector includes a bottom-retracting handle connecting cap 7, a wear-resistant and sound-absorbing load-bearing pad 8, a handle shaft 9, a pin sleeve 10, and a bolt 11, wherein the bottom-retracting handle connecting cap 7 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 bottom-retracting handle connecting cap 7 is provided with a through hole 7B and the root is provided with a bottom-retracting protrusion 7C, the handle shaft 9 is provided with a retaining wall 9A, a load-bearing section 9B, a pin section 9C, edges or protrusions 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, and the axial holes on the handle heads at both ends of the handle 3 sleeve the edges or bumps 9D, and the bolts 11 are screwed into the screw holes of the handle shaft. Then the first rivet 6 passes through the first through hole 7D and then through the first rivet through hole 5A to rivet the sound-absorbing pad type 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 sound-absorbing pad type connector to the barrel body.

[0047] With this design, the noise generated by the handle is eliminated by the wear-resistant and sound-absorbing load-bearing pad 8, and the friction surface between the handle and the cap 7A is greatly increased through the wear-resistant and sound-absorbing load-bearing pad 8. In this way, the service life of the handle will be greatly increased, the service life of the bucket will also be greatly extended, and the movement of the handle will not generate noise.

[0048] exist Figure 4 and Figure 5 This is a cross-sectional view of the connection between the handle, the pie-shaft connector and the barrel edge, and an exploded view of the connection between the handle, the pie-shaft connector and the barrel edge. Figure 5 A is a schematic diagram of the barrel wall. Figure 5 B is the three-dimensional appearance of the pie-shaped load-bearing shaft. Figure 5 C is the three-dimensional appearance of the load-bearing sleeve. Figure 5 D is the three-dimensional appearance of the silencer cover. Figure 5 E is the three-dimensional appearance of the straight bottom handle connecting cap. Figure 5 F is a three-dimensional appearance diagram of the handle head and bolts.

[0049] In the figure, the pancake-shaft type connector includes 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 12E, and the brim is provided with rivet through holes 12C and rivet through holes 12D, a through hole 12B is provided on the top of the straight-bottomed handle connecting cap 12, a through hole 13A is provided on one side of the silencer sleeve 13, and a retaining wall 13B is provided on the other side, a load-bearing pancake 15C is provided at one end of the pancake-shaped load-bearing shaft 15, and a bolt shaft is provided at the other end, the bolt shaft is provided with edges or bumps 15A, and the screw hole end face of the bolt shaft is provided with anti-slip teeth 15B. The silencer sleeve 13 is arranged in the straight-bottomed handle connecting cap 12, the load-bearing sleeve 14 is arranged in the silencer sleeve 13, the axial holes on the handle heads at both ends of the handle 3 cover the edges or projections 15A, the bolt 11 is screwed into the screw hole of the bolt shaft, and then the first rivet 6 passes through the rivet through hole 12C and then through the first rivet through hole 5A to rivet the pancake shaft type connector to the barrel body, and the second rivet 6A passes through the rivet through hole 12D and then through the second rivet through hole 5B to rivet the pancake shaft type connector to the barrel body.

[0050] With this design, the noise generated by the handle is eliminated by the silencer sleeve 13, and the friction surface between the handle and the load-bearing sleeve 14 is greatly increased through the pancake-shaped load-bearing shaft 15. In this way, the service life of the handle will be greatly increased, the service life of the bucket will also be greatly extended, and the movement of the handle will not generate noise.

[0051] exist Figure 7 This is the appearance diagram of the connection between the silencer ring or silencer sleeve and the handle.

[0052] In the figure, a handle 19 is provided in the middle of the handle 3, and a silencer ring or silencer sleeve 20 is provided on the handle 19. The silencer ring or silencer sleeve 20 is arranged at the contact point between the handle 19 and the barrel body. The silencer ring or silencer sleeve 20 is made of a soft colloid material with micropores inside the material. The silencer ring or silencer sleeve 20 is arranged at the contact point between the handle and the barrel body, so that the handle 3 cannot directly contact the barrel body.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. In the above embodiments, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A durable silent barrel, comprising a barrel body and a handle, characterized in that: A sound-absorbing pad (4) or a colloid (18) is provided at the bottom of a load-bearing wall (16) where the barrel body contacts the ground, so that the barrel body cannot directly contact the bottom plate; both ends of the handle are connected to the barrel body through a durable silent connector (2); the middle of the handle contacts the whole barrel through a silencer ring or silencer sleeve (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 or a silencer sleeve (20); Durable silent connectors (2), including silent pad type connectors or pancake type connectors; A glue hanging net (17), which is an annular net whose shape matches the bottom of the load-bearing wall (16); The sound-absorbing base 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 is in contact with the whole barrel body through a sound-absorbing ring or a sound-absorbing sleeve (20). In this way, the barrel body is very quiet during use, especially the barrel body made of metal, which is not only quiet but also very durable.

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 arranged 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 a protrusion (18A) is also arranged on the sound-absorbing base pad (4).

3. The durable silent barrel according to claim 1, characterized in that: The steps of setting the colloid (18) arranged at the bottom of the load-bearing wall (16) are: (1) Put the glue hanging net (17) on the bottom of the load-bearing wall (16); (2) The colloid is in a fluid state or the colloid is heated and melted into a fluid state; (3) The bottom of the load-bearing wall (16) is immersed in a fluid colloid; (4) After the glue hanging is completed, the fluid colloid on the bottom of the load-bearing wall and the glue hanging net (17) solidifies in the air.

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

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

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

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