Foundation bearing capacity detection device based on building

Abstract

The utility model relates to the technical field of foundation bearing capacity detection equipment, and discloses a foundation bearing capacity detection device based on construction, which comprises a sounding rod, the bottom end of the sounding rod is in threaded connection with a conical probe, the upper end of the sounding rod is in threaded connection with an internal thread bushing, the upper part of the internal thread bushing is in threaded connection with a drop hammer rod, and a hammer block is sleeved on the drop hammer rod; the hammer block comprises a bottom drop hammer and a plurality of balancing weights, the drop hammer and the balancing weights can be combined and connected together, the drop hammer rod is sleeved with a lantern ring, a baffle ring is fixedly installed at the bottom of the lantern ring, an insertion hole is formed in the lantern ring in a penetrating mode, three scale marks are arranged on the drop hammer rod, and three lock holes are formed in the drop hammer rod in a penetrating and clamping mode. Each scale mark corresponds to one lock hole, and T-shaped locking pins are inserted into the lock holes and the insertion holes in a penetrating mode. The hammer block adopts a combined structure, so that the carrying universality of the hammer block of the equipment is reduced, meanwhile, the adjustable height limiting baffle ring structure avoids carrying a plurality of drop hammer rods, and the portability of the equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of foundation bearing capacity detection equipment, specifically to a kind of based on building foundation bearing capacity detection device. BACKGROUND

[0002] In the existing foundation bearing capacity detection, power penetrometer is often used. Power penetrometer is mainly used for detecting foundation bearing capacity and soil mechanical properties. It drives a standard specification probe into the soil by a certain drop hammer mass, and judges the soil layer name and its engineering properties according to the difficulty of the probe penetrating into the soil, i.e. the number of hammer blows. Power penetrometer can be divided into light, heavy and super heavy power penetrometers according to the size of the detected foundation bearing capacity. Light power penetrometer is suitable for clay and silt, and is often used for detecting shallow foundation bearing capacity and foundation pit inspection; heavy power penetrometer is suitable for sand and gravel; super heavy power penetrometer is suitable for gravel. In addition, variable energy power penetrometer is a new type of portable device, which can not only measure the density of road subgrade soil, but also measure the density of various underground pipeline trench backfill soil, building foundation bottom, embankment or dam, determine the thickness or layer sequence of soil layer, and diagnose the hazards of dry cracks, cracks and disturbances.

[0003] In the actual foundation detection, the applicant found that three types of penetrometers are often carried by personnel at the same time, so that the detection can be adjusted at any time according to the foundation detection requirements. The existing each type of penetrometer is separately configured with a drop hammer, and the drop hammer is of an integral structure. When carrying all the penetrometers, the weight is heavy, and since the drop hammers of different types have different drop heights, three drop hammer rods with different height retaining rings are needed, which increases the weight of the equipment to be carried and reduces the portability of the equipment. In order to solve the above problems, a building foundation bearing capacity detection device is proposed. UTILITY MODEL CONTENTS

[0004] The utility model aims at: in order to solve the above problems, provide a kind of based on building foundation bearing capacity detection device.

[0005] The technical scheme adopted by the utility model is as follows: a building foundation bearing capacity detection device, including touch probe rod, the bottom end of the touch probe rod is threadedly connected with conical probe, the upper end of the touch probe rod is threadedly connected with internal thread sleeve, the upper portion of the internal thread sleeve is threadedly connected with drop hammer rod, the drop hammer rod is sleeved with hammer block;

[0006] The hammer block comprises a bottom drop hammer and a plurality of counterweights, a through hole one is formed in the center of the bottom drop hammer, the drop hammer rod penetrates through the through hole one, an internally-threaded counterbore one is formed in the top surface of the bottom drop hammer, the central axis of the internally-threaded counterbore one coincides with the central axis of the through hole one, a through hole two is formed in the center of the counterweight, the drop hammer rod penetrates through the through hole two, an externally-threaded sleeve is integrally formed in the bottom of the counterweight, the drop hammer rod penetrates through the externally-threaded sleeve, an internally-threaded counterbore two is formed in the top surface of the counterweight, the central axis of the internally-threaded counterbore two coincides with the central axis of the through hole two, and the externally-threaded sleeve is threadedly connected with the internally-threaded counterbore one and the internally-threaded counterbore two.

[0007] A sleeve ring is sleeved on the drop hammer rod, a stop ring is fixedly installed on the bottom of the sleeve ring, an insertion hole is formed in the sleeve ring, three scale marks are arranged on the drop hammer rod, three lock holes are arranged on the drop hammer rod, each scale mark corresponds to one lock hole, and a T-shaped lock pin is inserted into the lock hole and the insertion hole.

[0008] In a preferred embodiment, a plurality of screw holes are formed in the peripheral sidewall of the bottom drop hammer, and a handle rod is threadedly connected in the screw holes.

[0009] In a preferred embodiment, the bottom drop hammer is made of steel with a weight of 10 kg, and the counterweights are made of steel-lead with weights of 20 kg, 10 kg and 3.5 kg.

[0010] In a preferred embodiment, the three scale marks correspond to the heights of 50 cm, 76 cm and 100 cm of the drop hammer rod, respectively.

[0011] In a preferred embodiment, the internally-threaded counterbore one and the internally-threaded counterbore two have the same diameter, and the outer diameter of the stop ring is greater than the diameter of the internally-threaded counterbore one.

[0012] In a preferred embodiment, a pin hole is formed in one side of the T-shaped lock pin, and a split pin is connected in the pin hole.

[0013] In summary, due to the adoption of the above technical scheme, the present application has the following beneficial effects:

[0014] 1、In the present application, the bottom drop hammer cooperates with the counterweights to form hammer blocks with different weights, and the hammer blocks in a combined manner have a total weight of 120 kg, which is smaller than the total weight of three integral hammer blocks (10 kg, 63.5 kg and 120 kg), thereby effectively reducing the carrying weight and improving the portability of the detection equipment.

[0015] 2、The utility model discloses, according to the hammer block of different weight falling height demand, the sleeve ring on movable drop hammer pole is removed and makes the jack on sleeve ring with the lock hole on corresponding scale mark alignment, then T type lock bit pin is inserted into the jack and lock hole, thereby the position of the baffle ring is locked, so personnel can position the drop hammer pole ascending position, the whole structure baffle ring adopts adjustable structure to can satisfy the use of different model equipment, improve the versatility, so it is not necessary to carry multiple drop hammer pole, further improve the portability of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the front view internal structure schematic diagram of the utility model;

[0018] Figure 3 It is the sectional three-dimensional structure schematic diagram of bottom drop hammer and counterweight in the utility model;

[0019] Figure 4 It is the exploded three-dimensional structure schematic diagram of sleeve ring structure in the utility model.

[0020] Mark in drawing: 1- feeler rod, 2- conical probe, 3- internal thread sleeve, 4- drop hammer pole, 5- hammer block, 6- bottom drop hammer, 7- counterweight, 8- through hole one, 9- internal thread counterbore one, 10- through hole two, 11- external thread sleeve, 12- internal thread counterbore two, 13- sleeve ring, 14- baffle ring, 15- jack, 16- scale mark, 17- lock hole, 18- T type lock bit pin, 19- screw hole, 20- handle rod, 21- pin hole, 22- split pin. DETAILED DESCRIPTION

[0021] To make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be clearly and completely described below, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the scope of the utility model protection.

[0022] The technical scheme in the utility model embodiment will be clearly and completely described below, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the scope of the utility model protection. Figures 1-4 The utility model embodiment based on building ground bearing capacity detection device is explained in detail.

[0023] Embodiment:

[0024] The utility model embodiment provides a kind of based on building ground bearing capacity detection device, refer to Figures 1 to 4As shown, including the feeler rod 1, the bottom end of the feeler rod 1 is threaded with a conical probe 2, the upper end of the feeler rod 1 is threaded with an internal threaded sleeve 3, the upper part of the internal threaded sleeve 3 is threaded with a drop hammer rod 4, the drop hammer rod 4 is sleeved with a hammer block 5, and the components in the above structure are used for the dynamic sounding instrument for foundation bearing capacity detection, wherein the conical probe 2 and the feeler rod 1 form a sounding assembly, and then the hammer block 5 on the drop hammer rod 4 is used to hit the internal threaded sleeve 3, thereby driving the conical probe 2 and the feeler rod 1 to continuously insert into the foundation, thereby calculating the number of hammering and calculating the foundation bearing capacity through the calculation formula.

[0025] It should be noted that the weight of the hammer block 5 is divided into 10 kg, 63.5 kg and 120 kg, the feeler rod 1 has multiple diameters, divided into light type: outer diameter 25 mm; heavy type: outer diameter 42 mm; super heavy type: outer diameter 50-60 mm. The conical probe 2 has multiple types, divided into light type: conical angle 60°, conical bottom diameter 4.0 cm, conical bottom area 12.6 cm²; heavy type: conical angle 60°, conical bottom diameter 7.4 cm, conical bottom area 43 cm; super heavy type: conical angle 60°, conical bottom diameter 7.4 cm, conical bottom area 43 cm. The diameter of the drop hammer rod 4 is 40 cm.

[0026] Reference Figures 1 to 4 As shown, the hammer block 5 includes a bottom drop hammer 6 and multiple counterweight blocks 7, the bottom drop hammer 6 is made of steel material with a weight of 10 kg, the counterweight blocks 7 are made of steel-lead material with weights of 20 kg, 10 kg and 3.5 kg, the steel-lead material can ensure the weight while reducing the volume of the counterweight block 7, in this structure, when used as light type, only the 10 kg bottom drop hammer 6 is used for hammering, when used as heavy type, two 20 kg counterweight blocks 7, one 10 kg counterweight block 7 and a 3.5 kg counterweight block are added to the bottom drop hammer 6, thereby forming a 63.5 kg hammer block 5, and when used as super heavy type, five 20 kg counterweight blocks 7 and one 10 kg counterweight block 7 are added to the bottom drop hammer 6, thereby forming a 120 kg hammer block, so that the total weight of the hammer block to be carried is 120 kg, compared with the existing three integral hammer blocks 5 (10 kg, 63.5 kg and 120 kg), thereby effectively reducing the carrying weight and improving the portability of the entire equipment.

[0027] Reference Figures 1 to 4As shown, the center of the bottom drop hammer 6 is provided with a through hole 8, the drop hammer rod 4 penetrates the through hole 8, the top surface of the bottom drop hammer 6 is provided with an internally threaded counterbore 9, the central axis of the internally threaded counterbore 9 coincides with the central axis of the through hole 8, the center of the counterweight 7 is provided with a through hole 10, the drop hammer rod 4 penetrates the through hole 10, the bottom of the counterweight 7 is integrally provided with an externally threaded sleeve 11, the drop hammer rod 4 penetrates the externally threaded sleeve 11, the top surface of the counterweight 7 is provided with an internally threaded counterbore 12, the central axis of the internally threaded counterbore 12 coincides with the central axis of the through hole 10, the externally threaded sleeve 11 is threadedly connected with the internally threaded counterbore 9 and the internally threaded counterbore 12, in this structure, the counterweight 7 is connected with the bottom drop hammer 6 through the externally threaded sleeve 11 and the internally threaded counterbore 9 of the bottom drop hammer 6, thereby realizing the connection of the counterweight and the bottom drop hammer 6, and the counterweights 7 are connected with each other through the internally threaded counterbores 12 and the externally threaded sleeves 11, thereby enabling the counterweights 7 to be combined and installed together, thereby forming the hammer block 5 with the required weight, the bottom drop hammer 6 is sleeved on the drop hammer rod 4 through the through hole 8, and the counterweights 7 are sleeved on the drop hammer rod 4 through the through holes 10, thereby realizing that the hammer block 5 is sleeved on the drop hammer rod 4 for use.

[0028] Reference Figures 1 to 4 As shown, the drop hammer rod 4 is sleeved with a sleeve ring 13, the bottom of the sleeve ring 13 is fixedly provided with a stop ring 14, the sleeve ring 13 is provided with an insertion hole 15 penetratingly formed thereon, the drop hammer rod 4 is provided with three scale marks 16, the three scale marks 16 correspond to the heights of 50CM, 76CM and 100CM of the drop hammer rod respectively, the drop hammer rod 4 is provided with three lock holes 17 penetratingly arranged thereon, each scale mark 16 corresponds to a lock hole 17, and a T-shaped locking pin 18 is inserted through the insertion hole 15 and the lock hole 17, in this structure, personnel can move the sleeve ring 13 on the drop hammer rod 4 according to the drop height requirement of the hammer block 5 with different weights, align the insertion hole 15 on the sleeve ring 13 with the lock hole 17 on the corresponding scale mark 16, and then insert the T-shaped locking pin 18 through the insertion hole 15 and the lock hole 17, thereby locking the position of the stop ring 14, so that personnel can position the ascending position of the drop hammer rod 4.

[0029] Reference Figures 1 to 4 As shown, the periphery of the bottom drop hammer 6 is provided with a plurality of screw holes 19, and a handle rod 20 is threadedly connected in the screw holes 19, in this structure, the handle rod 20 is connected with the bottom drop hammer 6 through the screw holes 19, thereby facilitating personnel to lift the hammer block 5.

[0030] Reference Figures 1 to 4 As shown, the internally threaded counterbores 9 and 12 have the same diameter, and the outer diameter of the stop ring 14 is greater than the diameter of the internally threaded counterbores 9.

[0031] Reference Figures 1 to 4 As shown, one side of the T-shaped locking pin 18 is provided with a pin hole 21, and a split pin 22 is connected in the pin hole 21, in this structure, the split pin 22 in the pin hole 21 can prevent the T-shaped locking pin 18 from being pulled out.

[0032] It should be noted that the detection device disclosed in the above embodiment is applied to the detection of the bearing capacity of the foundation.

[0033] The implementation principle of the building foundation bearing capacity detection device according to the embodiment of the application is as follows: in use, a person positions the sleeve ring 13 on the drop hammer rod 4 according to the detection requirement of the foundation, aligns the insertion hole 15 on the sleeve ring 13 with the lock hole 17 on the corresponding scale mark 16, and then inserts the T-shaped locking pin 18 through the insertion hole 15 and the lock hole 17, so as to lock the position of the stop ring 14. In this way, the person can position the rising position of the drop hammer rod 4. Then, the person combines the counterweight block 7 with the corresponding weight and quantity with the bottom drop hammer 6 into the hammer block 5 with the corresponding weight, connects the handle rod 20 with the screw hole 19 of the bottom drop hammer 6, and then the person positions the hammer block 5 on the drop hammer rod 4, connects the drop hammer rod 4 with the inner threaded sleeve 3, selects the corresponding touch probe rod 1 and connects it with the inner threaded sleeve 3, and then connects the corresponding conical probe 3 with the touch probe rod 1. Then, the person stands up the device, and places the conical probe 3 on the ground. Then, the person can lift the hammer block 5 up to the stop ring 14 through the handle rod 20, and then allows the hammer block 5 to naturally drop and hit the inner threaded sleeve 3, so as to drive the conical probe 3 and the touch probe rod 1 to insert into the ground. Then, the person continues to hit the operation, until the touch probe rod 1 completely enters the ground. Then, the bearing capacity of the foundation is calculated according to the number of times of hitting and the calculation formula, so as to complete the detection.

[0034] The above embodiments are only used to illustrate the technical solutions of the application, but not limit the application; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A building site foundation bearing capacity detection device based on a sounding rod (1), characterized in that: The bottom end of the feeler rod (1) is threadedly connected with a conical probe (2), the upper end of the feeler rod (1) is threadedly connected with an internally-threaded sleeve (3), the upper part of the internally-threaded sleeve (3) is threadedly connected with a drop hammer rod (4), the drop hammer rod (4) is sleeved with a hammer block (5); The hammer block (5) comprises a bottom drop hammer (6) and a plurality of counterweight blocks (7), the center of the bottom drop hammer (6) is provided with a through hole (8), the drop hammer rod (4) penetrates through the through hole (8), the top surface of the bottom drop hammer (6) is provided with an internally-threaded counterbore (9), the central axis of the internally-threaded counterbore (9) coincides with the central axis of the through hole (8), the center of the counterweight block (7) is provided with a through hole (10), the drop hammer rod (4) penetrates through the through hole (10), the bottom of the counterweight block (7) is integrally formed with an externally-threaded sleeve (11), the drop hammer rod (4) penetrates through the externally-threaded sleeve (11), the top surface of the counterweight block (7) is provided with an internally-threaded counterbore (12), the central axis of the internally-threaded counterbore (12) coincides with the central axis of the through hole (10), the externally-threaded sleeve (11) is threadedly connected with the internally-threaded counterbore (9) and the internally-threaded counterbore (12); The drop hammer rod (4) is sleeved with a sleeve ring (13), the bottom of the sleeve ring (13) is fixedly installed with a stop ring (14), the sleeve ring (13) is provided with an insertion hole (15) penetrating therethrough, the drop hammer rod (4) is provided with three scale marks (16), the drop hammer rod (4) is provided with three lock holes (17) penetratingly arranged thereon, each scale mark (16) corresponds to one lock hole (17), a T-shaped lock pin (18) is inserted into the lock hole (17) and the insertion hole (15) penetratingly.

2. The building site bearing capacity detection device according to claim 1, characterized in that: A plurality of screw holes (19) are formed in the circumferential sidewall of the bottom drop hammer (6), and a handle rod (20) is threadedly connected in the screw holes (19).

3. The building ground bearing capacity detection device according to claim 1, wherein: The bottom drop hammer (6) is made of steel material with a weight of 10 kg, and the counterweight blocks (7) are made of steel-lead material with weights of 20 kg, 10 kg and 3.5 kg.

4. The building site bearing capacity detection device according to claim 1, characterized in that: The three scale marks (16) correspond to the heights of 50 cm, 76 cm and 100 cm of the drop hammer rod, respectively.

5. The building site bearing capacity detection device according to claim 1, characterized in that: The internally-threaded counterbores (9) and (12) have the same diameter, and the outer diameter of the stop ring (14) is greater than the diameter of the internally-threaded counterbores (9).

6. The building ground bearing capacity detection device according to claim 1, wherein: A pin hole (21) is formed in one side of the T-shaped lock pin (18), and a split pin (22) is connected in the pin hole (21) penetratingly.

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