Foundation bearing capacity detection device

Abstract

The invention discloses a foundation bearing capacity detection device in the technical field of building construction survey, and the device comprises a suite, the end part of the suite is provided with a drill rod detection assembly, and the suite is internally provided with a hammer pad and a heavy hammer used for knocking the hammer pad; a fixing part and a driving part used for driving the fixing part to move are arranged on the sleeve part, and a regulation and control part located on the moving path of the fixing part is arranged in the sleeve part; the driving part drives the fixing part to approach to the heavy hammer, after the fixing part automatically clamps the heavy hammer, the driving part drives the fixing part to move reversely until the fixing part makes contact with the control part, limitation of the fixing part to the heavy hammer is relieved, and the heavy hammer hits the hammer cushion under the action of gravity; the driving motor is adopted for driving, the heavy hammer can be repeatedly grabbed up and down for exploration operation according to exploration needs, the defects of traditional manual exploration are overcome, the labor intensity of workers is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction survey, and in particular to a foundation bearing capacity detection device. Background Art

[0002] Before the foundation construction of large-scale petroleum, chemical, integrated park and other construction projects, the bearing capacity of the foundation will be surveyed. Traditional drilling instruments are all manual. A 10kg core hammer is held by both hands with both handles on both sides, lifted 500mm to the limiter and released. The core hammer falls freely on the hammer pad, allowing the probe rod to enter the foundation soil layer. Every 300mm entering the soil layer is recorded. However, this repeated lifting and lowering process makes the exploration workers exhausted after just a few lifts. The labor intensity is high and the work efficiency is low. It is difficult to adapt to the needs of large-scale, long-distance, and tight-schedule engineering foundation surveys. Summary of the invention

[0003] The purpose of the present invention is to provide a foundation bearing capacity detection device to solve the problem that the traditional drilling probes mentioned in the above background technology are all manual, which has high labor intensity and low work efficiency.

[0004] To achieve the above object, the present invention provides the following technical solution: a foundation bearing capacity detection device, comprising: a kit, the end of the kit is provided with a probe assembly, the kit is provided with a hammer pad and a heavy hammer for striking the hammer pad;

[0005] The kit is provided with a fixing part and a driving part for driving the fixing part to move, and the kit is provided with an adjusting control part located on the moving path of the fixing part; the driving part drives the fixing part to move closer to the heavy hammer, so that the fixing part automatically clamps the heavy hammer, and then the driving part drives the fixing part to move in the opposite direction until the fixing part contacts the adjusting control part, thereby releasing the restriction of the fixing part on the heavy hammer, and causing the heavy hammer to hit the hammer pad under the action of gravity.

[0006] Preferably, the fixing member comprises a sliding plate slidably arranged in the kit, two clamping plates hinged on the sliding plate, and a compression spring arranged between the two clamping plates, the end of the clamping plate facing the hammer pad is in an eagle beak shape, and the end of the clamping plate away from the hammer pad is in an elbow shape;

[0007] Wherein, the adjustment control is an opening arranged on the inner wall of the kit, the opening is trapezoidal, and the cross-sectional area of ​​the side of the opening close to the fixing part is larger than the cross-sectional area of ​​the side of the opening away from the fixing part.

[0008] Preferably, the heavy hammer comprises a hammer body and a hammer handle provided on the hammer body, and the hammer handle is T-shaped.

[0009] Preferably, the driving member comprises a rack, a driving motor and a gear disposed on an output shaft of the driving motor and meshing with the rack, wherein the rack is slidably inserted into the kit and connected to the sliding plate;

[0010] Wherein, the kit is provided with a mounting cover for covering the rack, the gear and the driving motor.

[0011] Preferably, the sliding plate and the end of the rack away from the sliding plate are both provided with a limit switch for controlling the forward and reverse rotation of the drive motor.

[0012] Preferably, the probe assembly comprises an extension rod, a feeler rod and a cone head, the extension rod is detachably mounted on the kit, the feeler rod is detachably mounted on the extension rod, and the cone head is arranged on the end of the feeler rod.

[0013] Preferably, the sliding plate is provided with a bracket, a screw is slidably provided on the bracket, the moving direction of the screw is perpendicular to the moving direction of the sliding plate, a driving gear for sleeved on the outer wall of the screw is rotatably provided on the bracket, the inner wall of the driving gear is provided with a thread for matching with the screw, a driving rack located on the moving path of the driving gear is provided in the kit, and the length extension direction of the driving rack is the same as the moving direction of the sliding plate;

[0014] The kit is provided with slots for accommodating the bracket, screw rod and driving gear; when the sliding plate moves upward, the driving gear will contact the driving rack, causing the driving gear to rotate and move the screw rod horizontally to push the splints so that the top ends of the two splints are close to each other.

[0015] Preferably, the kit includes several mounting sleeves, one end of the mounting sleeve is provided with an annular block, the other end of the mounting sleeve is provided with an annular groove, an elastic member is provided in the annular groove, and the mounting sleeve is provided with a stop block and a hook, and the hook is used to hang on the stop block to connect two adjacent mounting sleeves.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the present application adopts a driving motor to repeatedly lift and drop the heavy hammer to perform surveying operations according to the exploration needs, thereby overcoming the shortcomings of traditional manual surveying, reducing the labor intensity of workers, and improving work efficiency, and making the detection device suitable for both surveying of a small amount of foundations and more suitable for surveying of large areas of foundations, with a wide range of applications, thereby increasing the scope of use of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a fixing member clamping a weight in the detection device of the present invention;

[0018] Figure 2 For the present invention Figure 1 Schematic diagram of the cross-sectional structure of the middle kit;

[0019] Figure 3 A schematic diagram of releasing the weight of the fixed part after lifting in the detection device of the present invention;

[0020] Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure of the middle kit;

[0021] Figure 5 This is a schematic diagram of the connection structure between the gear and the rack of the present invention;

[0022] Figure 6 This is an enlarged schematic diagram of the structure at A of the present invention;

[0023] Figure 7 It is an enlarged schematic diagram of the structure at B of the present invention;

[0024] Figure 8 This is a schematic diagram of the cross-sectional structure of the installation sleeve of the present invention;

[0025] Fig. 9 It is an enlarged schematic diagram of the structure at position C of the present invention.

[0026] In the figure: 1. kit; 101. installation sleeve; 102. elastic member; 103. annular block; 104. annular groove; 105. hook; 106. stopper; 2. probe assembly; 21. extension rod; 22. feeler rod; 23. cone head; 3. hammer pad; 4. heavy hammer; 41. hammer body; 42. hammer handle; 5. fixing member; 51. splint; 52. compression spring; 6. driving member; 61. rack; 62. gear; 63. driving motor; 7. installation cover; 8. sliding plate; 9. limit switch; 10. opening; 11. bracket; 12. screw; 13. driving gear; 14. driving rack; 15. slotting. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1

[0029] See also Figure 1 A foundation bearing capacity detection device comprises: a kit 1, a probe assembly 2 is provided at the bottom end of the kit 1, a hammer pad 3 is provided at the bottom of the inner cavity of the kit 1, a heavy hammer 4 is placed inside the kit 1, and the heavy hammer 4 is located above the hammer pad 3;

[0030] Among them, see Figure 2 and Figure 4The heavy hammer 4 includes a hammer body 41 and a hammer handle 42 arranged on the top wall of the hammer body 41. The hammer handle 42 is T-shaped and consists of a handle rod and a handle plate. The handle rod is installed on the top wall of the hammer body 41, and the handle plate is installed on the top of the handle rod.

[0031] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , a fixing member 5 is provided in the inner cavity of the kit 1;

[0032] Among them, the fixing part 5 includes a sliding plate 8, two clamping plates 51 and a compression spring 52; the inner walls on the left and right sides of the kit 1 are provided with guide grooves, and the sliding plate 8 is slidably arranged between the inner cavities of the two guide grooves. Two mounting holes are opened on the sliding plate 8, and the two mounting holes are symmetrically arranged. The bolts are passed through the clamping plates 51 and connected to the mounting holes, and the two clamping plates 51 are fixed on the two mounting holes respectively, and the clamping plates 51 can be rotated so that the lower ends of the two clamping plates 51 are close to or away from each other. The lower part of the clamping plates 51 is in an eagle's beak shape (for clamping the hammer handle 42 of the heavy hammer 4), and the middle and upper parts of the clamping plates 51 are in an elbow shape. The compression spring 52 is installed between the middle and upper parts of the two clamping plates 51.

[0033] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a driving member 6 is provided on the kit 1;

[0034] The driving member 6 includes a rack 61, a driving motor 63, and a gear 62 disposed on the output shaft of the driving motor 63 and meshing with the rack 61. A hole is disposed on the top of the kit 1, and the bottom end of the rack 61 passes through the hole and is connected to the sliding plate 8.

[0035] It should be noted that a mounting frame is installed on the top of the kit 1, and the rack 61 is slidably installed on the mounting frame (the rack 61 can move up and down on the mounting frame, and the mounting frame is used to support the rack 61), the drive motor 63 is installed on the top of the mounting frame, and a mounting cover 7 is installed on the top wall of the mounting frame, and the mounting cover 7 covers the rack 61, the gear 62, and the drive motor 63.

[0036] See also Figure 2 and Figure 4 The kit 1 is provided with an adjustment control, which is specifically an opening 10 provided on the top wall of the inner cavity of the kit 1. The opening 10 is trapezoidal, with the opening 10 being smaller at the top and larger at the bottom.

[0037] See also Figure 2 and Figure 4, limit switches 9 are installed on the sliding plate 8 and the end of the rack 61 away from the sliding plate 8; during the installation of the detection device, the power supply of the drive motor 63 is turned on, and the signal lines of the two limit switches 9 are connected to the sensor and the drive motor 63.

[0038] Working principle: Place the detection device at the location where the foundation needs to be surveyed, and the operator holds the probe assembly 2 by hand; turn on the power switch of the drive motor 63, drive the gear 62 to rotate, and move the rack 61, the sliding plate 8 and the clamping plate 51 downward until the clamping plate 51 contacts the hammer handle 42 of the heavy hammer 4. When the lower arc of the eagle's beak of the two clamping plates 51 touches the hammer handle 42, the eagle's beaks of the two clamping plates 51 open to both sides. When the eagle's beak of the clamping plate 51 goes down to the handle plate of the hammer handle 42, the eagle's beak of the two clamping plates 51 instantly hooks the handle plate of the hammer handle 42 under the action of the compression spring 52; at this time, the touch rod of the limit switch 9 on the sliding plate 8 contacts the hammer handle 42, causing the drive motor 63 to reverse with the gear 62, and the clamping plate 51 moves downward. The rack 61, the sliding plate 8, the clamping plate 51 and the captured heavy hammer 4 move upward; when moving upward to a set height, the upper parts of the two clamping plates 51 enter the opening 10. Since the opening 10 is small at the top and large at the bottom, the clamping plates 51 continue to move upward and will unfold under the action of the opening 10 (that is, the eagle mouths of the two clamping plates 51 loosen the hammer handle 42), and the heavy hammer 4 falls freely under the action of gravity and hits the hammer pad 3, so that the probe assembly 2 enters the soil; at this time, the touch rod of the limit switch 9 on the rack 61 contacts the top of the inner cavity of the mounting cover 7, so that the driving motor 63 adjusts the rotation direction again, so that the rack 61, the sliding plate 8 and the clamping plate 51 move downward, and the above actions are repeated until the survey of the foundation is completed.

[0039] It should be noted that the limit switch 9 being touched so that the driving motor 63 adjusts the rotation direction belongs to the prior art and will not be described in detail here.

[0040] In this embodiment, as a further optimized solution, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The probe assembly 2 includes an extension rod 21, a feeler rod 22 and a cone head 23; the cone head 23 is conical, flat on the top and pointed on the bottom, which is convenient for driving into or penetrating the soil layer and has a certain resistance. The cone head 23 is welded to the bottom end of the feeler rod 22; the top outer wall of the feeler rod 22 is provided with an external thread, the bottom end of the extension rod 21 is provided with a threaded hole, and the top end of the feeler rod 22 is screwed into the inner cavity of the threaded hole of the extension rod; the kit 1 includes a cylinder body and a cylinder support fixed to the bottom of the cylinder body by bolts, the hammer pad 3 is fixed to the cylinder support by bolts, the bottom of the hammer pad 3 is provided with a screw hole, the top outer wall of the extension rod 21 is provided with a thread, and the top end of the extension rod 21 is screwed into the screw hole of the hammer pad 3.

[0041] Example 2

[0042] As a further optimized solution of Example 1, please refer to Figure 2 , Figure 6 and Figure 7 The sliding plate 8 is provided with a bracket 11, and a screw 12 is slidably provided on the bracket 11. The moving direction of the screw 12 is perpendicular to the moving direction of the sliding plate 8 (that is, the screw 12 can slide horizontally so that the screw 12 can move closer to the clamping plate 51). A driving gear 13 is rotatably provided on the bracket 11. The driving gear 13 is sleeved on the outer wall of the screw 12. The inner wall of the driving gear 13 is provided with a thread for matching with the screw 12. A driving rack 14 is provided in the kit 1. The driving rack 14 is located directly above the driving gear 13. The length extension direction of the driving rack 14 is perpendicular to the moving direction of the sliding plate 8. The moving directions are the same; and there are two of the above-mentioned components, which are symmetrically arranged and correspond to the two clamping plates 51 respectively; when the sliding plate 8 moves upward, the driving gear 13 will contact the driving rack 14, so that the driving gear 13 will rotate, and move the screw 12 horizontally, which is used to push the clamping plate 51, so that the top ends of the two clamping plates 51 are close to each other, ensuring that the clamping plate 51 can release the heavy hammer 4; when the sliding plate 8 moves downward, the driving gear 13 will rotate in the opposite direction through the driving rack 14, so that the screw 12 moves in the opposite direction, releases the restriction on the clamping plate 51, and enables the clamping plate 51 to be reset.

[0043] It should be noted that a push plate is rotatably mounted on one end of the screw rod 12 away from the bracket 11 ; the push plate is in contact with the clamping plate 51 to increase the contact area, ensuring that the movement of the screw rod 12 can push the clamping plate 51 to rotate.

[0044] In this embodiment, as a further optimized solution, please refer to Figure 7 A slot 15 is provided at the top of the inner cavity of the kit 1, and the slot 15 is located directly above the bracket 11; when the sliding plate 8 moves upward, the bracket 11, the screw 12, and the driving gear 13 will enter the inner cavity of the slot 15, so that the above components will not affect the entry of the splint 51 into the opening 10, thereby ensuring the regulating effect of the opening 10 on the splint 51.

[0045] Example 3

[0046] As a further optimized solution of Example 1, please refer to Figure 8 and Fig. 9The kit 1 includes a plurality of mounting sleeves 101, one end of which is provided with an annular block 103, the other end of which is provided with an annular groove 104, an elastic member 102 (spring) being provided in the annular groove 104, adjacent mounting sleeves 101 being connected via the annular block 103 and the annular groove 104 (i.e., the annular block 103 of the lower mounting sleeve 101 is slidably inserted into the annular groove 104 of the upper mounting sleeve 101), a stopper 106 and a hook 105 being provided on the mounting sleeve 101; adjacent mounting sleeves 101 are fixed by the cooperation of the hook 105 and the stopper 106; when the hook 105 is rotated so that the hook 105 and the stopper 106 are not in contact, the fixed connection between the two adjacent mounting sleeves 101 is disconnected, the mounting sleeve 101 is moved, and the spacing between the mounting sleeves 101 is changed, so as to increase the length of the kit 1, increase the falling path of the heavy hammer 4, and thereby increase the impact force generated by the falling of the heavy hammer 4 on the hammer pad 3.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foundation bearing capacity detection device, characterized in that: include: A kit (1), wherein a probe assembly (2) is provided at the end of the kit (1), and a hammer pad (3) and a heavy hammer (4) for striking the hammer pad (3) are provided inside the kit (1); The kit (1) is provided with a fixing part (5) and a driving part (6) for driving the fixing part (5) to move, and the kit (1) is provided with an adjustment control part located on the moving path of the fixing part (5); the driving part (6) drives the fixing part (5) to move closer to the heavy hammer (4), so that the fixing part (5) automatically clamps the heavy hammer (4), and then the driving part (6) drives the fixing part (5) to move in the opposite direction until the fixing part (5) contacts the adjustment control part, thereby releasing the restriction of the fixing part (5) on the heavy hammer (4), so that the heavy hammer (4) hits the hammer pad (3) under the action of gravity.

2. A foundation bearing capacity detection device according to claim 1, characterized in that: The fixing member (5) comprises a sliding plate (8) slidably arranged in the set (1), two clamping plates (51) hinged on the sliding plate (8), and a compression spring (52) arranged between the two clamping plates (51), wherein one end of the clamping plate (51) facing the hammer pad (3) is in an eagle beak shape, and one end of the clamping plate (51) away from the hammer pad (3) is in an elbow shape; The adjustment control is an opening (10) provided on the inner wall of the kit (1), the opening (10) is trapezoidal, and the cross-sectional area of ​​the side of the opening (10) close to the fixing member (5) is larger than the cross-sectional area of ​​the side of the opening (10) away from the fixing member (5).

3. A foundation bearing capacity detection device according to claim 1, characterized in that: The heavy hammer (4) comprises a hammer body (41) and a hammer handle (42) arranged on the hammer body (41), and the hammer handle (42) is T-shaped.

4. A foundation bearing capacity detection device according to claim 2, characterized in that: The driving member (6) comprises a rack (61), a driving motor (63), and a gear (62) disposed on an output shaft of the driving motor (63) and meshing with the rack (61); the rack (61) is slidably inserted into the kit (1) and connected to the sliding plate (8); Wherein, the kit (1) is provided with a mounting cover (7) for covering the rack (61), the gear (62), and the drive motor (63).

5. A foundation bearing capacity detection device according to claim 4, characterized in that: The sliding plate (8) and the rack (61) are both provided with a limit switch (9) on one end away from the sliding plate (8) for controlling the forward and reverse rotation of the driving motor (63).

6. A foundation bearing capacity detection device according to claim 1, characterized in that: The probe assembly (2) comprises an extension rod (21), a feeler rod (22) and a cone head (23); the extension rod (21) is detachably mounted on the kit (1); the feeler rod (22) is detachably mounted on the extension rod (21); and the cone head (23) is arranged on the end of the feeler rod (22).

7. A foundation bearing capacity detection device according to claim 2, characterized in that: The sliding plate (8) is provided with a bracket (11), a screw rod (12) is slidably provided on the bracket (11), the moving direction of the screw rod (12) is perpendicular to the moving direction of the sliding plate (8), a driving gear (13) is rotatably provided on the bracket (11) for sleeve-mounting on the outer wall of the screw rod (12), the inner wall of the driving gear (13) is provided with a thread for matching with the screw rod (12), and a driving rack (14) is provided in the kit (1) on the moving path of the driving gear (13), and the length extension direction of the driving rack (14) is the same as the moving direction of the sliding plate (8); The kit (1) is provided with a slot (15) for accommodating the bracket (11), the screw rod (12) and the driving gear (13); when the sliding plate (8) moves upward, the driving gear (13) contacts the driving rack (14), so that the driving gear (13) rotates and moves the screw rod (12) horizontally, so as to push the clamping plates (51) so that the top ends of the two clamping plates (51) are close to each other.

8. A foundation bearing capacity detection device according to claim 1, characterized in that: The kit (1) comprises a plurality of mounting sleeves (101), one end of each mounting sleeve (101) being provided with an annular block (103), the other end of each mounting sleeve (101) being provided with an annular groove (104), an elastic member (102) being provided in the annular groove (104), a stopper (106) and a hook (105) being provided on each mounting sleeve (101), the hook (105) being used to be hung on the stopper (106) so as to connect two adjacent mounting sleeves (101).

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