CN211904945U

CN211904945U - Shearing container of direct shear apparatus

Info

Publication number: CN211904945U
Application number: CN202020584716.1U
Authority: CN
Inventors: 顾莉雯; 李平; 朱叶婷
Original assignee: Shanghai Jindi Engineering Survey Co Ltd
Current assignee: Shanghai Jindi Engineering Survey Co Ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-11-10
Anticipated expiration: 2030-04-17

Abstract

The utility model relates to a shearing container of staight scissors appearance, including water storage box, last shearing box, lower shearing box and biography clamp plate, the lower shearing box is fixed in the water storage box, the dovetail of mutually supporting is seted up to two relative sides at the bottom border of last shearing box and two relative sides of lower shearing box top epitaxy, the slot has been seted up on the side of last shearing box and lower shearing box dovetail, the slot grafting cooperation has the locating pin. The utility model discloses have and be convenient for fix a position upper shear box, lower shear box fast.

Description

Shearing container of direct shear apparatus

Technical Field

The utility model belongs to the technical field of the experimental technique of soil and specifically relates to a shearing container of staight scissors appearance is related to.

Background

The direct shear apparatus is an apparatus for measuring the shear strength of a soil sample under a static load condition.

In the existing design, chinese patent with publication number CN201107241 discloses a shearing container of a direct shear apparatus, which comprises a water storage box, an upper shearing box, a lower shearing box, a pressure transmitting plate and a positioning pin, wherein the upper shearing box and the lower shearing box are aligned up and down and are arranged in the water storage box, the positioning pin penetrates through the upper shearing box and the lower shearing box to align and lock the upper shearing box and the lower shearing box, the outer diameter of the pressure transmitting plate is matched with the inner diameter of the upper shearing box and the lower shearing box, a circular boss is arranged in the center of the bottom of the water storage box, and the diameter of the boss is matched with the inner diameter of the lower shearing box; two opposite side edges of the outer edge at the bottom of the upper shearing box and two opposite side edges of the outer edge at the top of the lower shearing box are provided with dovetail grooves matched with each other.

The existing design scheme has the following defects that when soil is tested, the positioning pin needs to be taken out, and the positioning shaft ensures the coaxiality of the upper shearing box and the lower shearing box, so that the positioning pin is difficult to pull out from the upper shearing box in the using process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a shearing container of staight scissors appearance, it has and is convenient for fix a position last shearing box, lower shearing box fast to prior art exists not enough.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a shearing container of staight scissors appearance, includes water storage box, upper shear box, lower shear box and passes the clamp plate, the lower shear box is fixed in the water storage box, mutually supporting dovetail is seted up to two relative sides at the bottom border of upper shear box and two relative sides of lower shear box top epitaxy, the slot has been seted up on the side of upper shear box and lower shear box dovetail, the slot grafting cooperation has the locating pin.

By adopting the technical scheme, the upper shearing box and the lower shearing box adopt the design of dovetail grooves matched with each other, so that the direction of the shearing force can be automatically corrected when the upper shearing box and the lower shearing box displace, and the accuracy of the direction of the shearing force is ensured; the coaxiality of the central circular holes of the upper shearing box and the lower shearing box is ensured by the matching of the positioning pin and the slot, and the upper shearing box and the lower shearing box are locked by matching with the dovetail groove; when the positioning pin is disassembled, the force which is perpendicular to the length direction of the dovetail groove acts on the upper shearing box and the lower shearing box, the relative positions of the upper shearing box and the lower shearing box are not changed in the disassembling process, and the improvement of data accuracy is facilitated.

The present invention may be further configured in a preferred embodiment as: the length of the dovetail groove of the upper shearing box is half of the length of the upper shearing box.

By adopting the technical scheme, the experimental error caused by friction force is reduced, the stable horizontal movement of the upper and lower shearing boxes in the displacement process is ensured, and the upwarp phenomenon is avoided.

The present invention may be further configured in a preferred embodiment as: the slot is located on one side of the upper shearing box, which is different from the dovetail groove.

By adopting the technical scheme, the dovetail groove and the slot cannot be mutually influenced during processing production, the production requirements of the upper shearing box and the lower shearing box are reduced, and the precision of the upper shearing box and the lower shearing box is ensured.

The present invention may be further configured in a preferred embodiment as: two through grooves are formed at the joint of the bottom surface and the side surface of the dovetail groove of the upper shearing box.

Through adopting above-mentioned technical scheme, lead to the groove and make the contact surface of shearing box, shearing box down in dovetail department reduce, reduced frictional force each other, improved data accuracy.

The present invention may be further configured in a preferred embodiment as: the locating pin is one.

Through adopting above-mentioned technical scheme, the locating pin design is one, is convenient for lock and remove the locking to the shearing container fast, and the operation is more simple, convenient.

The present invention may be further configured in a preferred embodiment as: the center of the bottom of the water storage box is provided with a round boss matched with the lower shearing box.

Through adopting above-mentioned technical scheme, circular boss is used for fixing a position shearing box down, improves shearing container's installation effectiveness.

The present invention may be further configured in a preferred embodiment as: and a handle is fixed on the outer side of the lower shearing box.

Through adopting above-mentioned technical scheme, the handle is convenient for get the shearing container and is put, and is removing the in-process, can not lead to the fact the influence to the soil in the shearing container, has guaranteed experimental accuracy.

The present invention may be further configured in a preferred embodiment as: the water storage box, the upper shearing box, the lower shearing box and the pressure transmission plate are all structures made of stainless steel materials.

Through adopting above-mentioned technical scheme, the shearing container adopts stainless steel material to make, compares conventional cast copper material, has durable, the difficult advantage of corrosion, and the price is less than cast copper spare.

To sum up, the utility model discloses a following at least one useful technological effect:

1. because the upper shearing box and the lower shearing box adopt the design of dovetail grooves matched with each other, the direction of shearing force can be automatically corrected when the upper shearing box and the lower shearing box displace, so that the direction of shearing force is ensured to be accurate, the improvement of data precision is facilitated, and meanwhile, the positioning pin is convenient to remove, so that the operation of an experimental process is convenient and fast;

2. the coaxiality of the central circular holes of the upper shearing box and the lower shearing box can be ensured by using the dovetail groove and the single positioning pin simultaneously;

3. the inner diameter of the upper shearing box and the lower shearing box which are connected into a whole through the dovetail groove is matched with the diameter of the boss of the water storage box, so that a conventional experiment is completed, and the disassembly, soil sampling and soil sample residue removal are facilitated;

4. the shearing container is made of stainless steel materials, and compared with the conventional copper casting materials, the shearing container has the advantages of durability, corrosion resistance and lower price than the copper casting.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an explosion diagram of the present invention.

Reference numerals: 1. a water storage box; 2. an upper shearing box; 3. a lower shear box; 4. a pressure transmitting plate; 5. a dovetail groove; 6. a slot; 7. positioning pins; 8. a through groove; 9. a circular boss; 10. a handle; 11. a baffle plate; 12. a push plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a shearing container of staight scissors appearance, including water storage box 1, cut box 2, lower shear box 3 and pass pressure plate 4 on, cut box 2 on and arrange water storage box 1 central authorities in, cut box 2 and lower shear box 3 on and align from top to bottom, pass pressure plate 4 lid and close the drain hole play of last shear box 2.

Referring to fig. 1 and 2, the two opposite side edges of the bottom outer edge of the upper shear box 2 and the two opposite side edges of the top outer edge of the lower shear box 3 are provided with dovetail grooves 5 which are matched with each other. The direction of the shearing force can be automatically corrected by the displacement of the upper shearing box 2 and the lower shearing box 3, so that the accuracy of the direction of the shearing force is ensured, and the data precision is improved. Preferably, the dovetail groove 5 is formed in the upper shear box 2, so that the bottom of the upper shear box 2 protrudes to form two opposite dovetail strips, and the dovetail strips are in inserted sliding fit with the dovetail groove 5 of the lower shear box 3.

With continued reference to fig. 1 and 2, the side surfaces of the upper shear box 2 and the lower shear box 3 with the dovetail groove 5 are provided with slots 6, and the slots 6 are matched with positioning pins 7 in an inserting manner. The coaxiality of the central round holes of the upper shearing box 2 and the lower shearing box 3 is guaranteed by the matching of the positioning pin 7 and the slot 6, and the matching dovetail groove 5 is used for locking the upper shearing box 2 and the lower shearing box 3. Meanwhile, the depth of the slot 6 is small, the number of the positioning pins 7 is one, the positioning pins 7 are convenient to detach, and the operation of the experimental process is convenient and fast. When the positioning pin 7 is removed, the force which acts on the upper shearing box 2 and the lower shearing box 3 in the direction perpendicular to the length direction of the dovetail groove 5 does not change the relative position of the upper shearing box and the lower shearing box in the removing process, and the improvement of data accuracy is facilitated.

Referring to fig. 2, for the convenience of manufacturing, the length of the dovetail groove 5 of the upper shear box 2 is half of the length of the upper shear box 2, and the length of the dovetail groove 5 of the lower shear box 3 is equal to that of the dovetail groove 5 of the upper shear box 2, while the slot 6 is located on the side of the upper shear box 2 other than the dovetail groove 5. During processing production, the processing of the dovetail groove 5 and the slot 6 cannot generate mutual influence, the production requirements of the upper shearing box 2 and the lower shearing box 3 are reduced, and the precision of the upper shearing box and the lower shearing box is ensured. Therefore, experimental errors caused by friction force are reduced, and the stable horizontal movement of the upper and lower shearing boxes 3 in the displacement process is ensured without upwarp.

With reference to fig. 2, the dovetail groove 5 of the upper shear box 2 is formed with two through grooves 8 at the connection between the bottom surface and the side surface, so that the contact surfaces of the upper shear box 2 and the lower shear box 3 at the dovetail groove 5 are reduced, the friction force between the upper shear box and the lower shear box is reduced, and the data accuracy is improved.

Continuing to refer to fig. 2, the bottom central authorities department of water storage box 1 protrusion has a circular boss 9, and the diameter of circular boss 9 equals with the internal diameter of shearing box 3 down, is convenient for fix a position shearing box 3 down, passes the external diameter of clamp plate 4 and cooperates with the internal diameter of shearing box 2, shearing box 3 down, goes up the circular boss 9 of the central authorities of water storage box 1 bottom of can knowing of shearing box 2, and the diameter of this boss cooperatees with the internal diameter of shearing box 3 down, reaches the purpose of conveniently dismantling, borrow and clear away soil sample residue.

With continued reference to fig. 2, handles 10 for picking and placing the containers are fixed to opposite sides of the lower shear box 3, and the two handles 10 are respectively located on opposite sides of the lower shear box 3 with the dovetail grooves 5. A baffle 11 is fixed on one side of the upper shearing box 2 close to the dovetail groove 5, and a push plate 12 is fixed on one side of the water storage box 1 far away from the dovetail groove 5, so that shearing tests can be conveniently carried out.

All parts of the shearing container are made of stainless steel materials, and compared with the conventional copper casting materials, the shearing container has the advantages of durability, corrosion resistance and lower price than the copper casting.

The utility model discloses an implement the principle and do:

when the dovetail type dovetail groove locking device is used, a dovetail strip formed by the dovetail groove 5 of the upper shearing box 2 is pushed into the dovetail groove 5 of the lower shearing box 3, and then the positioning pin 7 is inserted into the slot 6, so that the upper shearing box 2 and the lower shearing box 3 are aligned and locked. The upper shearing box 2 and the lower shearing box 3 are matched on the circular boss 9 of the water storage box 1, and after a soil sample is filled, the shearing container is arranged on a measuring instrument. After all parts of the instrument are adjusted, the positioning pin 7 is pulled out, and a shearing experiment is carried out. After the use, the upper cutting box 2 and the lower cutting box 3 can be taken out together by utilizing the handle 10 on the lower cutting box 3, and the soil sample is removed.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a shearing container of staight scissors appearance, includes water storage box (1), goes up shear box (2), shears box (3) down and passes clamp plate (4), it fixes in water storage box (1) to shear box (3) down, mutually support dovetail (5), its characterized in that are seted up to two relative sides at the bottom border of going up shear box (2) and two relative sides of shearing box (3) top epitaxy down: the side surfaces of the upper shearing box (2) and the lower shearing box (3) with the dovetail grooves (5) are provided with slots (6), and the slots (6) are matched with positioning pins (7) in an inserting mode.

2. A shearing container of a direct shear apparatus as set forth in claim 1, wherein: the length of the dovetail groove (5) of the upper shearing box (2) is half of the length of the upper shearing box (2).

3. A shearing container of a direct shear apparatus as defined in claim 2, wherein: the slot (6) is positioned on one side of the upper shearing box (2) different from the dovetail groove (5).

4. A shearing container of a direct shear apparatus as defined in claim 3, wherein: two through grooves (8) are formed at the connecting position of the bottom surface and the side surface of the dovetail groove (5) of the upper shearing box (2).

5. A shearing container of the direct shear apparatus as set forth in any one of claims 1 to 4, wherein: the positioning pin (7) is one.

6. A shearing container of a direct shear apparatus as set forth in claim 1, wherein: the bottom center of the water storage box (1) is provided with a round boss (9) matched with the lower shearing box (3).

7. A shearing container of a direct shear apparatus as set forth in claim 1, wherein: a handle (10) is fixed on the outer side of the lower cutting box (3).

8. A shearing container of a direct shear apparatus as set forth in claim 1, wherein: the water storage box (1), the upper shearing box (2), the lower shearing box (3) and the pressure transmission plate (4) are all structures made of stainless steel materials.