Municipal handheld tamping equipment

Abstract

The present invention discloses a municipal handheld tamping device, comprising a body, which moves in a first direction or a second direction; a movable part, which is slidably arranged inside the body, and the sliding path of the movable part includes a first end point, a midpoint, and a second end point. When the movable part is located between the first end point and the midpoint, the body moves in the first direction while performing reciprocating linear motion, and when the movable part is located between the midpoint and the second end point, the body moves in the second direction while performing reciprocating linear motion; a locking mechanism, which is used to lock the movable part at any position of the sliding path of the movable part. The municipal handheld tamping device provided by the present invention has a body that can move in the first direction or the second direction, and the movement direction of the body can be changed by setting the movable part and the locking mechanism, thereby realizing the overall adjustment of the travel direction of the tamping device when the tamping device is tamping.

Description

Technical Field

[0001] The invention relates to the technical field of tamping equipment, and in particular to a municipal handheld tamping equipment. Background Art

[0002] Municipal engineering refers to municipal infrastructure construction projects. In municipal infrastructure construction projects, tamping devices are generally used to level and compact the foundation. Tamping means using a tamping device to compact the foundation, backfill the indoor soil, and prepare the floor. It is necessary to ensure that the floor will not collapse under pressure in the future. Therefore, compacting the soil is a key process to prevent the finished floor from collapsing. When using a tamping device, the staff usually uses a handheld tamping device.

[0003] The authorization announcement number is CN101196003B, the authorization announcement date is September 15, 2010, and the invention patent is named "A Linear Electric Impact Rammer", which includes a power part, an impact part and a rammer plate part. The upper outer cylinder of the impact part and the lower inner cylinder sleeve cooperate, the upper part of the outer cylinder is fixed together with the power part, and the lower part of the inner cylinder is fixed together with the rammer plate part. A guide piston is arranged in the inner cylinder, and the piston is connected to the power output shaft through a piston connecting rod. Impact springs are arranged above and below the piston. It is characterized in that the power part is an electromagnetic linear motor, which adopts an electromagnetic structure, and its coil is wound on the outer wall of the tubular iron core. The columnar armature-type mover of the linear motor is installed in the center hole of the tubular iron core. The lower end of the armature-type mover is transmission-connected with the upper end of the piston connecting rod as the power output of the power part, and the axis of the armature-type mover coincides with the axis of the piston connecting rod. It solves the problem that "although this rammer has the advantages of high rammer frequency and reliability and durability compared with previous similar products, it requires motion conversion to convert the rotational motion of the motor into the linear reciprocating motion of the piston. The structure is relatively complex, which not only has high manufacturing costs but also fails to fully exert the reliability and durability of the equipment. At the same time, the motion conversion also reduces the energy utilization efficiency and the energy consumption is high. In addition, since the motor vibrates while rotating, the impact on the rotating parts causes the service life of the rotating parts to be greatly reduced, which not only affects normal use but also increases the amount and cost of maintenance."

[0004] The tamping device in the prior art uses the eccentric principle to move during tamping, and can only move in one direction. The direction of the tamping device can only be adjusted by workers turning the tamping device manually. The process of adjusting the tamping direction is relatively cumbersome, time-consuming and labor-intensive. Summary of the invention

[0005] The object of the present invention is to provide a municipal handheld tamping device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A municipal handheld tamping device comprises a body, the body moves in a first direction or a second direction, the first direction and the second direction are on the same straight line and in opposite directions;

[0008] A movable member, wherein the movable member is slidably disposed inside the machine body, and a sliding path of the movable member includes a first end point, a midpoint, and a second end point. When the movable member is located at the midpoint, the machine body performs reciprocating linear motion in a vertical direction. When the movable member is located between the first end point and the midpoint, the machine body performs reciprocating linear motion in a vertical direction while moving in a first direction. When the movable member is located between the midpoint and the second end point, the machine body performs reciprocating linear motion in a vertical direction while moving in a second direction.

[0009] A locking mechanism is used to lock the movable part at any position of the sliding path of the movable part.

[0010] Furthermore, the body comprises:

[0011] frame;

[0012] An elastic part, the elastic part is fixedly connected to the bottom of the frame, and the elastic part contracts and releases along the vertical direction;

[0013] A tamping part, the tamping part is fixedly connected to the bottom of the elastic part;

[0014] A driving part, wherein the driving part drives the tamping part to move in a vertical direction;

[0015] An armrest is fixedly mounted on the frame.

[0016] Furthermore, the driving unit includes:

[0017] A driving motor, wherein the driving motor is fixedly mounted on one side of the frame, and a mounting surface of the driving motor is parallel to the first direction;

[0018] A first gear, wherein the first gear is fixedly mounted on an output shaft of the driving motor;

[0019] a second gear, the second gear being rotatably mounted inside the frame and meshing with the first gear;

[0020] An eccentric column, wherein the eccentric column is fixedly connected to one side of the second gear, and the second gear drives the eccentric column to rotate eccentrically;

[0021] The swing rod is rotatably mounted on the circumference of the eccentric column, and the bottom end of the swing rod is rotatably connected to the tamping part.

[0022] Furthermore, a first elastic member is disposed inside the tamping part, and the first elastic member and the elastic part shrink and release synchronously along the vertical direction.

[0023] Furthermore, the sliding path of the movable member is parallel to the first direction.

[0024] Furthermore, the machine body is symmetrical along a first reference plane, and the first direction and the second direction are both parallel to the first reference plane.

[0025] Furthermore, a slide rail is fixedly connected to the interior of the machine body, and the movable part slides on the slide rail.

[0026] Furthermore, a limiting groove is provided on the movable part, and a limiting block matching with the limiting groove is fixedly connected to the slide rail.

[0027] Furthermore, it also includes:

[0028] A first fixing column, wherein the first fixing column is fixedly connected to the machine body;

[0029] A push rod, the push rod is rotatably connected to the first fixed column, and a strip-shaped hole is opened on one side of the push rod;

[0030] A second fixed column, the second fixed column is fixedly connected to one side of the movable member, and the second fixed column slides inside the strip hole;

[0031] A grip is fixedly connected to the other end of the push rod.

[0032] Furthermore, the locking mechanism comprises:

[0033] A lower rack, wherein the lower rack is fixedly connected to the movable member;

[0034] A reed, which is fixedly mounted on the machine body and releases elastic force toward the lower rack;

[0035] An upper rack, the upper rack is meshed with the lower rack, and the upper rack is fixedly connected to the spring leaf;

[0036] An extrusion member, the extrusion member abuts against the spring leaf;

[0037] A second elastic member, wherein the second elastic member is fixedly connected to the extrusion member and releases elastic force toward the spring leaf;

[0038] A lower column, wherein the lower column is sleeved on the circumference of the second elastic member, and the circumference of the lower column is fixedly connected with four first protrusions, and the first protrusions are provided with first grooves;

[0039] An upper cylinder, wherein the upper cylinder is sleeved on the peripheral side of the lower cylinder, and the peripheral side of the upper cylinder is fixedly connected with four second protrusions, and the second protrusions are matched with the first grooves;

[0040] A fixing ring, wherein the fixing ring is fixedly connected to the machine body, and the upper cylinder is slidably arranged inside the fixing ring along the vertical direction;

[0041] A guide block is fixedly connected to the bottom of the fixing ring.

[0042] In the above technical scheme, the tamping device provided by the present invention has a body that can move in the first direction or the second direction, and the movement direction of the body can be changed by setting movable parts and locking mechanisms, thereby overall adjusting the moving direction of the tamping device when the tamping device is tamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0044] Figure 1-3 A schematic diagram of the overall structure of a tamping device provided in an embodiment of the present invention;

[0045] Figure 4 A left side view of a tamping device provided by an embodiment of the present invention;

[0046] Figure 5 The embodiment of the present invention provides Figure 4 Sectional view of the AA section;

[0047] Figure 6 The embodiment of the present invention provides Figure 5 Enlarged view of point C in the middle;

[0048] Figure 7 A front view of a tamping device provided by an embodiment of the present invention;

[0049] Figure 8 The embodiment of the present invention provides Figure 7 Sectional view of the middle BB section;

[0050] Fig. 9 A schematic diagram of the internal structure of a machine body provided by an embodiment of the present invention;

[0051] Fig.10 A schematic diagram of the structure of an elastic member provided in an embodiment of the present invention;

[0052] Fig.11A schematic diagram of the structure of a hinge provided in an embodiment of the present invention;

[0053] Figure 12-13 A schematic diagram of the structure of a push rod provided by an embodiment of the present invention;

[0054] Fig.14 A schematic diagram of the structure of a locking mechanism provided by an embodiment of the present invention;

[0055] Fig.15 The embodiment of the present invention provides Fig.14 Exploded diagram.

[0056] Description of reference numerals:

[0057] 1. Movable part; 2. Frame; 3. Elastic part; 4. Outer cylinder; 5. Ramming plate; 6. Driving motor; 7. First gear; 8. Second gear; 9. Eccentric column; 10. Rocker; 11. Elastic part; 12. Handrail; 13. Slide rail; 14. Limit block; 15. First fixed column; 16. Push rod; 17. Second fixed column; 18. Inner cylinder; 19. Hinge; 20. Spring leaf; 21. Upper rack; 22. Extrusion part; 23. Second elastic part; 24. Lower cylinder; 25. First protrusion; 26. Upper cylinder; 27. Second protrusion; 28. Fixed ring; 29. ​​Guide block; 30. Handle; 31. Lower rack. DETAILED DESCRIPTION

[0058] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0059] See also Figure 1-15 , a municipal handheld tamping device provided by the present invention comprises a body, the body moves in a first direction or a second direction, the first direction and the second direction are on the same straight line and in opposite directions;

[0060] A movable member 1 is slidably disposed inside the machine body, and a sliding path of the movable member 1 includes a first end point, a midpoint, and a second end point. When the movable member 1 is located at the midpoint, the machine body performs reciprocating linear motion in a vertical direction. When the movable member 1 is located between the first end point and the midpoint, the machine body performs reciprocating linear motion in a vertical direction while moving in a first direction. When the movable member 1 is located between the midpoint and the second end point, the machine body performs reciprocating linear motion in a vertical direction while moving in a second direction.

[0061] A locking mechanism is used to lock the movable part at any position of the sliding path of the movable part.

[0062] Specifically, the municipal handheld tamping device provided in this embodiment is used to tamp the ground. The tamping device can move in the first direction or the second direction, and the travel direction of the tamping device is adjusted when the tamping device is tamping, so that the tamping device switches between the first direction and the second direction. Furthermore, since the sliding path of the movable part includes a first end point, a midpoint, and a second end point, and the locking mechanism can lock the movable part at any position of the sliding path of the movable part, the staff can not only adjust the travel direction of the tamping device, but also adjust the travel speed of the tamping device by adjusting the specific position of the movable part. When the movable part 1 is located between the first end point and the midpoint, the body moves toward the first direction while performing reciprocating linear motion in the vertical direction. During this process, the closer the movable part 1 is to the first end point, the more the center of gravity of the body deviates toward the first end point, and the faster the tamping device moves toward the first direction; when the movable part 1 is located between the midpoint and the second end point, the body moves toward the second direction while performing reciprocating linear motion in the vertical direction. During this process, the closer the movable part 1 is to the second end point, the more the center of gravity of the body deviates toward the second end point, and the faster the tamping device moves toward the second direction.

[0063] The key point of this embodiment is that the bottom of the machine body is flush with the horizontal plane, and the center of gravity of the machine body is at its center (at this time, the movable part 1 is at the midpoint). In this embodiment, the main thing that changes the position of the center of gravity of the machine body is the movable part 1. The movement of the movable part 1 will change the position of the center of gravity of the machine body, thereby causing the tamping equipment to move toward the center of gravity. Note: For objects with uniform mass distribution, the center of gravity position is only related to the shape of the object; for objects with uneven mass distribution, the center of gravity position is related to the shape of the object as well as the distribution of mass within the object (generally the center of gravity is close to the heavier side).

[0064] The municipal handheld tamping device provided by the embodiment of the present invention comprises:

[0065] Rack 2;

[0066] The elastic part 3 is fixedly connected to the bottom of the frame 2, and the elastic part 3 contracts and releases along the vertical direction; the elastic part 3 is made of rubber.

[0067] A tamping part, which is fixedly connected to the bottom of the elastic part, and comprises an outer tube 4 for connection, and a tamping plate 5 is fixedly installed at the bottom of the outer tube 4;

[0068] A driving part, wherein the driving part drives the tamping part to move in a vertical direction;

[0069] The armrest 12 is fixedly mounted on the frame 2. The armrest 12 is convenient for the staff to grasp.

[0070] The drive unit includes:

[0071] A driving motor 6, wherein the driving motor 6 is fixedly mounted on one side of the frame, and a mounting surface of the driving motor 6 is parallel to the first direction;

[0072] A first gear 7, wherein the first gear 7 is fixedly mounted on an output shaft of a driving motor 6;

[0073] The second gear 8 is rotatably mounted inside the frame 2, and the second gear 8 is meshed with the first gear 7; preferably, the transmission ratio between the first gear 7 and the second gear 8 is 1:80.

[0074] The eccentric column 9 is fixedly connected to one side of the second gear 8, and the second gear 8 drives the eccentric column 9 to rotate eccentrically; the eccentric column 9 is located on the second gear 8 close to the edge of the second gear 8.

[0075] The swing rod 10 is rotatably mounted on the circumference of the eccentric column 9, and the bottom end of the swing rod 10 is rotatably connected to the tamping part. Specifically, a hinge 19 is fixedly connected to the bottom of the inner wall of the outer cylinder 4, and the swing rod 10 is rotatably connected to the hinge 19.

[0076] A first elastic member 11 is disposed inside the tamping part, and the first elastic member 11 and the elastic part 3 are synchronously contracted and released in the vertical direction. Specifically, the bottom of the inner wall of the outer cylinder 4 is fixedly connected with the inner cylinder 18, one end of the first elastic member 11 is fixedly connected with the top of the inner wall of the inner cylinder 18, and the other end of the first elastic member 11 is fixedly connected with the bottom of the inner wall of the outer cylinder 4. Preferably, the first elastic member 11 is a first spring.

[0077] The machine body is symmetrical along a first reference plane (the first reference plane is perpendicular to the horizontal plane), and the first direction and the second direction are both parallel to the first reference plane. In this direction, the center of gravity of the machine body is located on the first median plane of the machine body.

[0078] The sliding path of the movable member 1 is parallel to the first direction. The second reference plane (the second reference plane is perpendicular to the horizontal plane) where the sliding path of the movable member 1 is located is the second median plane of the machine body, and the second median plane of the machine body is perpendicular to the first median plane of the machine body. Since the machine body is symmetrical along the first reference plane, when the movable member is located at the midpoint of the sliding path, the machine body performs reciprocating linear motion in the vertical direction.

[0079] More specifically, when the movable part 1 is located at the midpoint of the sliding path, the first median plane intersects with the second median plane and generates a center intersection line, that is, the center of gravity of the machine body is on the center intersection line. When the staff starts the drive motor 6, the drive motor 6 drives the first gear 7 to rotate, the first gear 7 drives the second gear 8 to rotate, the second gear 8 drives the eccentric column 9 to rotate, and the eccentric column 9 drives the swing rod 10 to make an eccentric rotation. Since one end of the swing rod 10 is rotatably connected to the tamping part, the swing rod 10 will drive the tamping part to make reciprocating linear motion in the vertical direction, and the elastic part 3 and the elastic part 11 are constantly contracted and released, so that the tamping part can compact the ground.

[0080] In another embodiment provided by the present invention, further, a slide rail 13 is fixedly connected to the interior of the body, and the movable part 1 slides on the slide rail 13. Furthermore, a limiting groove is provided on the movable part 1, and a limiting block 14 matching the limiting groove is fixedly connected to the slide rail 13. Specifically, the slide rail 13 is a semi-cylindrical structure, which is adapted to the movable part 1 of the cylindrical structure. The setting of the limiting groove and the limiting block 14 can prevent the movable part 1 from detaching from the slide rail 13, and ensure that the movable part 1 only moves in a straight line along the sliding path. Preferably, the limiting block 14 and the limiting groove are both T-shaped structures. In addition, they can also be triangular, trapezoidal, L-shaped, etc.

[0081] In another embodiment provided by the present invention, further, it also includes:

[0082] A first fixing column 15, wherein the first fixing column 15 is fixedly connected to the machine body;

[0083] A push rod 16, wherein the push rod 16 is rotatably connected to the first fixing column 15, and a strip-shaped hole is formed on one side of the push rod 16;

[0084] The second fixing column 17 is fixedly connected to one side of the movable part 1, and the second fixing column 17 slides inside the strip hole; specifically, one side of the movable part 1 is fixedly connected to two oppositely arranged connecting plates, and the second fixing column 17 is fixed between the two connecting plates.

[0085] A handle 30 is fixedly connected to the other end of the push rod 16. The setting of the handle 30 is convenient for the staff to push the push rod 16.

[0086] In this embodiment, specifically, the arrangement of the strip-shaped hole provides a degree of freedom for the swing of the push rod 16 , and when the staff pushes the push rod 16 , the push rod 16 will drive the movable part 1 to slide.

[0087] In yet another embodiment provided by the present invention, further, the locking mechanism comprises:

[0088] A lower rack 31, wherein the lower rack 31 is fixedly connected to the movable member 1;

[0089] A reed 20, wherein the reed 20 is fixedly mounted on the machine body, and the reed 20 releases elastic force toward the lower rack 31;

[0090] An upper rack 21, wherein the upper rack 21 is meshed with the lower rack 31, and the upper rack 21 is fixedly connected to the spring leaf 20;

[0091] An extrusion member 22, wherein the extrusion member 22 abuts against the reed 20;

[0092] The second elastic member 23 is fixedly connected to the extrusion member 22, and the second elastic member 23 releases elastic force toward the spring leaf 20; specifically, the elastic force of the second elastic member 23 is smaller than the elastic force of the spring leaf 20. Preferably, the second elastic member 23 is a second spring.

[0093] The lower cylinder 24 is sleeved on the circumferential side of the second elastic member 23, and four first protrusions 25 are fixedly connected to the circumferential side of the lower cylinder 24, and a first groove is formed on the first protrusion 25; specifically, the first protrusions 25 are arranged on the circumferential side of the lower cylinder 24 along a circumferential array.

[0094] The upper cylinder 26 is sleeved on the circumferential side of the lower cylinder 24 , and four second protrusions 27 are fixedly connected to the circumferential side of the upper cylinder 26 , and the second protrusions 27 match with the first grooves; specifically, the second protrusions 27 are arranged on the circumferential side of the upper cylinder 26 in a circumferential array.

[0095] The fixing ring 28 is fixedly connected to the machine body, and the upper column 26 is slidably arranged inside the fixing ring 28 along the vertical direction; the inner diameter of the fixing ring 28 is smaller than the outer edge of the second protrusion 27, and the upper column 26 will not be separated from the fixing ring 28.

[0096] The guide block 29 is fixedly connected to the bottom of the fixing ring 28. The gap between adjacent first protrusions 25 is a first gap, and the gap between adjacent second protrusions 27 is a second gap. In the radial direction, the width of the first gap is greater than the width of the second gap (that is, the central angle of the first gap is greater than the central angle of the second gap). The guide block 29 is located in the second gap, and during the rotation of the lower cylinder 24, the guide block 29 can enter the second gap, and the first groove on the first protrusion 25 can clamp the guide block 29.

[0097] In this embodiment, specifically, when the staff needs to unlock (at this time it is in the locked state), press the upper column 26, and the second protrusion 27 on the upper column 26 presses the first protrusion 25 on the lower column 24 downward, so that the lower column 24 rotates a quarter of a turn, and the guide block 29 enters the second gap, the spring leaf 20 lifts the extrusion piece 22, and the spring leaf 20 drives the upper rack 21 away from the lower rack 31, and the staff can push the movable part 1 at this time; when the staff needs to lock (at this time it is in the unlocked state), press the upper column 26, and the second protrusion 27 on the upper column 26 presses the first protrusion 25 on the lower column 24 downward, so that the lower column 24 rotates a quarter of a turn, and the guide block 29 is stuck by the first groove on the first protrusion 25, and the guide block 29 cannot enter the second gap, the spring leaf 20 cannot lift the extrusion piece 22, and the extrusion piece 22 drives the upper rack 21 close to the lower rack 31 and sticks the lower rack 31, and the staff cannot push the movable part 1 at this time.

[0098] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A municipal handheld tamping device, characterized in that: The machine body includes a machine body, the machine body moves in a first direction or a second direction, the first direction and the second direction are on the same straight line and in opposite directions; A movable member, wherein the movable member is slidably disposed inside the machine body, and a sliding path of the movable member includes a first end point, a midpoint, and a second end point. When the movable member is located at the midpoint, the machine body performs reciprocating linear motion in a vertical direction. When the movable member is located between the first end point and the midpoint, the machine body performs reciprocating linear motion in a vertical direction while moving in a first direction. When the movable member is located between the midpoint and the second end point, the machine body performs reciprocating linear motion in a vertical direction while moving in a second direction. A locking mechanism, the locking mechanism being used to lock the movable member at any position of the sliding path of the movable member; The bottom of the machine body is flush with the horizontal plane, and the center of gravity of the machine body is at its center. At this time, the movable parts are at the midpoint. The main thing that changes the position of the center of gravity of the machine body is the movable parts. The movement of the movable parts will change the position of the center of gravity of the machine body, so that the tamping equipment moves to the center of gravity. The machine body is symmetrical along a first reference plane, the first direction and the second direction are both parallel to the first reference plane, a slide rail is fixedly connected inside the machine body, and the movable part slides on the slide rail; The body comprises: frame; An elastic part, the elastic part is fixedly connected to the bottom of the frame, and the elastic part contracts and releases along the vertical direction; A tamping part, the tamping part is fixedly connected to the bottom of the elastic part; A driving part, wherein the driving part drives the tamping part to move in a vertical direction; An armrest, wherein the armrest is fixedly mounted on the frame; The driving unit comprises: A driving motor, wherein the driving motor is fixedly mounted on one side of the frame, and a mounting surface of the driving motor is parallel to the first direction; A first gear, the first gear is fixedly mounted on the output shaft of the driving motor; a second gear, the second gear being rotatably mounted inside the frame and meshing with the first gear; An eccentric column, wherein the eccentric column is fixedly connected to one side of the second gear, and the second gear drives the eccentric column to rotate eccentrically; A swing rod, the swing rod is rotatably mounted on the circumference of the eccentric column, and the bottom end of the swing rod is rotatably connected to the tamping part; The locking mechanism comprises: A lower rack, wherein the lower rack is fixedly connected to the movable member; A reed, which is fixedly mounted on the machine body and releases elastic force toward the lower rack; An upper rack, the upper rack is meshed with the lower rack, and the upper rack is fixedly connected to the spring leaf; An extrusion member, the extrusion member abuts against the spring leaf; A second elastic member, wherein the second elastic member is fixedly connected to the extrusion member and releases elastic force toward the spring leaf; A lower column, wherein the lower column is sleeved on the circumference of the second elastic member, and the circumference of the lower column is fixedly connected with four first protrusions, and the first protrusions are provided with first grooves; An upper cylinder, wherein the upper cylinder is sleeved on the peripheral side of the lower cylinder, and the peripheral side of the upper cylinder is fixedly connected with four second protrusions, and the second protrusions are matched with the first grooves; A fixing ring, wherein the fixing ring is fixedly connected to the machine body, and the upper cylinder is slidably arranged inside the fixing ring along the vertical direction; A guide block is fixedly connected to the bottom of the fixing ring.

2. The municipal handheld tamping equipment according to claim 1, characterized in that: A first elastic member is disposed inside the tamping part, and the first elastic member and the elastic part shrink and release synchronously along the vertical direction.

3. The municipal handheld tamping device according to claim 1, characterized in that: The sliding path of the movable member is parallel to the first direction.

4. The municipal handheld tamping device according to claim 1, characterized in that: The movable part is provided with a limiting groove, and the slide rail is fixedly connected with a limiting block matched with the limiting groove.

5. The municipal handheld tamping device according to claim 1, characterized in that: Also includes: A first fixing column, wherein the first fixing column is fixedly connected to the machine body; A push rod, the push rod is rotatably connected to the first fixed column, and a strip-shaped hole is opened on one side of the push rod; A second fixed column, the second fixed column is fixedly connected to one side of the movable member, and the second fixed column slides inside the strip hole; A grip is fixedly connected to the other end of the push rod.

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