Simple device for backfilling and compacting roadbed pavement test pit

Abstract

The utility model discloses a simple device for backfilling and compacting a roadbed pavement test pit, which comprises an air cylinder and an impact plate connected to a piston rod of the air cylinder, and further comprises a surrounding barrel, the surrounding barrel is sleeved on the outer side of the piston rod of the air cylinder and is connected with the impact plate, and the surrounding barrel and the impact plate are matched to form a weight increasing frame for placing a weight increasing object; compared with the prior art, when the simple device is used, a weight increasing object can be added into the weight increasing frame formed by matching the surrounding cylinder with the impact plate, and the weight increasing object can be stones or iron blocks and the like on a construction site, so that the acting force generated in the compaction process of the impact plate is increased, and the compaction force of test pit backfilling compaction is enhanced; and after use, the weight increasing object is moved out, so that the weight is prevented from being relatively large when the simple device is moved.

Description

Technical Field

[0001] The utility model relates to the technical field of test pit backfilling and compacting equipment, in particular to a simple device for backfilling and compacting a test pit for a roadbed or pavement. Background Art

[0002] For cement concrete surface layer, asphalt mixture surface layer or cement, lime, fly ash and other inorganic binder stabilized base layer, a pavement coring machine is used to drill representative samples of the pavement on site to determine its thickness, density or other physical and mechanical properties.

[0003] After core sampling, test pits will be left on the original road surface, which need to be filled in the later stage; the existing filling is mostly done manually, and manual operation has problems such as compaction failing to reach the specified compaction degree and uneven compaction, and the efficiency of the filling work is relatively low.

[0004] In order to solve the above problems, the patent document with application number CN201922209255.X discloses a compaction equipment for filling a test pit, comprising a hollow shell with an opening downward, wherein the bottom edge of the shell is connected to an annular base which is concentric with the shell and has a diameter larger than the diameter of the shell, an electric push rod is fixedly connected to the top center of the shell, the lower end of the electric push rod is connected to a drive box, a cylinder is installed in the drive box, the output shaft of the cylinder extends downward and is fixedly connected to the upper end of the drive rod, and the lower end of the drive rod is connected to a horizontally arranged impact plate.

[0005] The compaction equipment used for the test pit filling uses a cylinder to provide power to the impact plate to perform compaction, and the resulting compaction strength is relatively low. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a simple device for backfilling and compacting test pits in roadbed and pavement, so as to solve the problem in the prior art that the impact plate is compacted by providing power through a cylinder, resulting in relatively low compaction strength.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a simple device for backfilling and compacting test pits on roadbed and pavement, comprising a cylinder and an impact plate connected to the piston rod of the cylinder, and also comprising a surrounding tube, which is sleeved on the outside of the piston rod of the cylinder and connected to the impact plate, and the surrounding tube cooperates with the impact plate to form a weight-added frame for placing weight-added objects.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] When the simple device is in use, weights can be added to the weight frame formed by the surrounding tube and the impact plate. The weights can be stones or iron blocks at the construction site, etc., so as to increase the force generated by the impact plate during the compaction process, thereby enhancing the compaction strength of the test pit backfill. After use, the weights are removed to avoid relatively large weight when moving the simple device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0011] Figure 2 for Figure 1 Section view along line AA;

[0012] Figure 3 for Figure 1 Schematic diagram of the connection between the middle locking block and the adjusting screw.

[0013] The figure marks in the drawings of the specification include: cylinder 1, impact plate 2, surrounding tube 3, limit block 4, adjustable holding frame 5, connecting plate 51, fixing part 52, mounting plate 521, connecting rod 522, sliding holding part 53, sliding rod 531, fixing plate 532, handle 533, adjustable locking part 54, locking block 541, guide sleeve 542, adjusting screw 543, square notch 544. DETAILED DESCRIPTION

[0014] The utility model is further described in detail below through specific implementation methods:

[0015] like Figure 1 and Figure 2 As shown, an embodiment of the utility model proposes a simple device for backfilling and compacting test pits on roadbeds and pavements, comprising a cylinder 1 and an impact plate 2 connected to the piston rod of the cylinder 1, and also comprising a surrounding tube 3, wherein the surrounding tube 3 is sleeved on the outside of the piston rod of the cylinder 1 and is connected to the impact plate 2, and the surrounding tube 3 cooperates with the impact plate 2 to form a weight-added frame for placing weight-added objects.

[0016] When the present simple device is in use, weighted objects may be added to the weighted frame formed by the surrounding tube 3 and the impact plate 2. The weighted objects may be stones or iron blocks at the construction site, etc., so as to increase the force generated by the impact plate 2 during the compaction process, thereby enhancing the compaction strength of the test pit backfill. The weighted objects are removed after use to avoid a relatively large weight when moving the present simple device.

[0017] In order to prevent the cylinder 1 from moving the weighted object out of the weighted frame during the compaction process by driving the impact plate 2 to reciprocate; Figure 1 and Figure 2As shown, according to another embodiment of the utility model, a simple device for backfilling and compacting a test pit on a roadbed or pavement is provided, wherein a plurality of insertion holes are opened on the side wall of one end of the surrounding tube 3 away from the impact plate 2 along its circumferential direction, and a limit block 4 extending to the inside and outside of the surrounding tube 3 is slidably connected in each insertion hole.

[0018] In this embodiment, two insertion holes are opened on the side wall of the end of the surrounding tube 3 away from the impact plate 2, and the corresponding number of the limiting blocks 4 is two; after the weighted object is placed in the weighted frame, the two limiting blocks 4 are passed through the two insertion holes one by one, one end of the two limiting blocks 4 is in contact with the piston rod of the cylinder 1 and the other end is placed outside the surrounding tube 3, and the weighted object is restricted in the weighted frame by the cooperation of the two limiting blocks 4. When the weighted object needs to be removed, the two limiting blocks 4 are removed and the weighted object can be taken out of the weighted frame.

[0019] In order to facilitate the use of this simple device, Figure 1 As shown, according to another embodiment of the utility model, a simple device for backfilling and compacting a test pit on a roadbed or pavement is provided, wherein an adjustable holding frame 5 is connected to the outer wall of the cylinder 1 .

[0020] Based on the above scheme:

[0021] The adjustable holding frame 5 includes a connecting plate 51, a fixed portion 52, a sliding holding portion 53 and an adjustable locking portion 54, wherein the connecting plate 51 is fixedly sleeved on the outer wall of the cylinder 1; the fixed portion 52 is fixedly connected to the connecting plate 51 and the cylinder 1 is placed in the fixed portion 52; the sliding holding portion 53 is slidingly connected to the fixed portion 52 and the sliding holding portion 53 and the impact plate 2 are located on the opposite side of the connecting plate 51 of the fixed portion 52; the adjustable locking portion 54 is arranged on the fixed portion 52 and cooperates with the sliding holding portion 53 to lock or unlock the sliding holding portion 53.

[0022] Among them, the connecting plate 51 can be fixedly connected to the cylinder 1 by welding or bolting. On the one hand, the fixing part 52 slides relatively with the sliding grip part 53 to be used by people of different heights, so that the staff can use this simple device more easily. On the other hand, a space for placing the cylinder 1 is formed therein for reasonable arrangement; the adjustable locking part 54 is used to lock and fix the sliding grip part 53 after the sliding adjustment, so that the staff can stably hold the simple device for use.

[0023] The structures of the fixing portion 52 , the sliding gripping portion 53 and the adjustable locking portion 54 are respectively detailed below.

[0024] First, the sliding grip 53 .

[0025] Among them, the sliding gripping part 53 includes a sliding rod 531 and a fixed plate 532. There are multiple sliding rods 531 and they are all arranged to slide with the fixed part 52 along the direction close to or away from the impact plate 2. The multiple sliding rods 531 are all coordinated with the adjustable locking part 54; the fixed plate 532 is fixedly connected to one end of the sliding rod 531.

[0026] In this embodiment, there are two sliding rods 531 and the cross-section of the sliding rod 531 is square; the two fixing plates 532 are connected together by a fixing plate 532, and then the two sliding rods 531 are moved synchronously with the fixing part 52 to adjust the relative movement. When the adjustment is completed, the two sliding rods 531 are locked by the adjustable locking part 54 for use.

[0027] In order to facilitate holding when moving the fixing plate 532 , a handle 533 is connected to the fixing plate 532 .

[0028] Next is the adjustable locking portion 54 .

[0029] Among them, the adjustable locking part 54 includes a locking block 541 and an adjustment structure. There are multiple locking blocks 541 and they are all slidably connected to the fixed part 52. The multiple locking blocks 541 are arranged in a scattered manner on the fixed part 52; the adjustment structure is connected to each locking block 541, and is used to drive the multiple locking blocks 541 to move closer or farther synchronously to cooperate with the sliding gripping part 53.

[0030] In this embodiment, there are two locking blocks 541 and the two locking blocks 541 are matched with the two sliding rods 531 in a one-to-one manner; after the two locking blocks 541 are moved away from each other synchronously by adjusting the structure, one end of the two locking blocks 541 is abutted against the two sliding rods 531 in a one-to-one manner to lock and fix the two sliding rods 531; after the two locking blocks 541 are moved close to each other synchronously by adjusting the structure, one end of the two locking blocks 541 is disengaged from the two sliding rods 531 in a one-to-one manner to unlock the two sliding rods 531.

[0031] Since the cross section of the sliding rod 531 is square, a square notch 544 is formed at one end of the two locking blocks 541 that cooperate with the corresponding sliding rod 531 (combined with Figure 3 ); when locked, the sliding rod 531 abuts against the corresponding square notch 544, with a sufficiently large contact area, and the locking ability is better.

[0032] Each of the locking blocks 541 is equipped with a guide sleeve 542, which is fixedly connected to the fixing portion 52 and arranged along the sliding direction of the corresponding locking block 541; the guide sleeve 542 is specifically "U"-shaped, and both ends of the guide sleeve 542 are fixedly connected to the fixing portion 52 by multiple screws to guide the matching locking block 541 so that the locking block 541 can slide stably; wherein, the length of the guide sleeve 542 is not less than one third of the length of the locking block 541.

[0033] The cross section of the locking block 541 is square except for the square notch 544 .

[0034] Furthermore, the adjustment structure is an adjustment screw 543 threadedly connected between the two locking blocks 541. The adjustment screw 543 is rotated to make the two locking blocks 541 move toward or away from each other, thereby controlling the abutment state of the two locking blocks 541 and the two sliding rods 531 to lock or unlock the two sliding rods 531.

[0035] Finally, there is the fixing portion 52 .

[0036] Among them, the fixing part 52 includes a mounting plate 521, the mounting plate 521 and the connecting plate 51 are arranged opposite to each other and are connected to each other through a plurality of connecting rods 522, the sliding gripping part 53 is slidingly connected to the plurality of connecting rods 522, the adjustable locking part 54 is arranged on the mounting plate 521, and the cylinder 1 is located between the plurality of connecting rods 522.

[0037] In this embodiment, there are two connecting rods 522 , and one end of the two sliding rods 531 slides in the middle of the two connecting rods 522 in a one-to-one correspondence; the two locking blocks 541 are both slidably installed on the mounting plate 521 .

[0038] When using this solution:

[0039] First, unlock the sliding rod 531, then move the sliding rod 531 to adjust the relative length between the sliding rod 531 and the connecting rod 522, and lock the sliding rod 531 after the adjustment is completed;

[0040] Put the weight in the weight frame, and then connect the limit block 4;

[0041] The impact plate 2 can be compacted by starting the cylinder 1.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A simple device for backfilling and compacting a roadbed test pit, comprising a cylinder and an impact plate connected to a piston rod of the cylinder, characterized in that: It also includes a surrounding tube, which is sleeved on the outside of the piston rod of the cylinder and connected to the impact plate. The surrounding tube cooperates with the impact plate to form a weight-added frame for placing weight-added objects.

2. A simple device for backfilling and compacting a roadbed test pit according to claim 1, characterized in that: A plurality of insertion holes are formed on a side wall of one end of the surrounding tube away from the impact plate along its circumferential direction, and a limiting block extending to the inside and outside of the surrounding tube is slidably connected in each insertion hole.

3. A simple device for backfilling and compacting a roadbed test pit according to claim 1 or 2, characterized in that: An adjustable holding frame is connected to the outer wall of the cylinder.

4. A simple device for backfilling and compacting a roadbed test pit according to claim 3, characterized in that: The adjustable grip frame comprises: A connecting plate, wherein the connecting plate is fixedly sleeved on the outer wall of the cylinder; A fixing part, wherein the fixing part is fixedly connected to the connecting plate and the cylinder is disposed inside the fixing part; A sliding grip portion, wherein the sliding grip portion is slidably connected to the fixed portion and the sliding grip portion and the impact plate are located on the opposite side of the connecting plate of the fixed portion; An adjustable locking portion is arranged on the fixed portion and cooperates with the sliding grip portion to lock or unlock the sliding grip portion.

5. A simple device for backfilling and compacting a roadbed test pit according to claim 4, characterized in that: The sliding grip portion comprises: A plurality of sliding rods, each of which is arranged to slide with the fixed portion in a direction close to or away from the impact plate, and each of the plurality of sliding rods cooperates with the adjustable locking portion; A fixed plate, each of which is fixedly connected to one end of the sliding rod.

6. A simple device for backfilling and compacting a roadbed test pit according to claim 5, characterized in that: A handle is connected to the fixing plate.

7. A simple device for backfilling and compacting a roadbed test pit according to claim 4, characterized in that: The adjustable locking portion comprises: A locking block, wherein the locking blocks are multiple and all are slidably connected to the fixing portion, and the multiple locking blocks are arranged in a scattered manner on the fixing portion; The adjusting structure is connected to each locking block and is used to drive the multiple locking blocks to move closer or farther synchronously to cooperate with the sliding gripping portion.

8. A simple device for backfilling and compacting a roadbed test pit according to claim 7, characterized in that: Each locking block is matched with a guide sleeve, which is fixedly connected to the fixing part and arranged along the sliding direction of the corresponding locking block.

9. A simple device for backfilling and compacting a roadbed test pit according to claim 4, characterized in that: The fixing portion comprises: The mounting plate is arranged opposite to the connecting plate and is connected to the connecting plate via a plurality of connecting rods; the sliding gripping portion is slidably connected to the plurality of connecting rods; the adjustable locking portion is arranged on the mounting plate; and the cylinder is located between the plurality of connecting rods.

Images