CN215725572U

CN215725572U - Concrete contraction and expansion instrument connecting structure

Info

Publication number: CN215725572U
Application number: CN202121901006.8U
Authority: CN
Inventors: 田淑月; 雷星; 齐惠娟
Original assignee: Hebei Kehua Testing Technology Service Group Co ltd
Current assignee: Hebei Kehua Testing And Certification Group Co ltd
Priority date: 2021-08-14
Filing date: 2021-08-14
Publication date: 2022-02-01
Anticipated expiration: 2031-08-14

Abstract

The utility model discloses a concrete contraction and expansion instrument connecting structure, which relates to the field of concrete detection equipment and comprises: the main part, including base, left side board, right side board, movable block, hob and rotary disk, left side board fixed connection is in the top of base, right side board sliding connection is in the outer wall of base. According to the utility model, by arranging the fixing mechanism, when the screw rod is rotated, the clamping block is pushed to move out of the clamping groove, the fixing of the rotating block is cancelled, the screw rod is rotated to drive the rotating disc to rotate and displace, the rotating disc displaces to drive the movable rod to displace, the movable rod displaces to drive the movable lead screw to rotate, the movable lead screw rotates to drive the rotating block to rotate, after the rotating block reaches a proper position, the clamping block is loosened, the clamping block is displaced under the elastic action of the connecting spring and enters the clamping groove to fix the rotating block, so that the screw rod is fixed, and the screw rod is convenient to fix after the screw rod rotates.

Description

Concrete contraction and expansion instrument connecting structure

Technical Field

The utility model relates to the field of concrete detection equipment, in particular to a concrete contraction and expansion instrument connecting structure.

Background

The concrete shrinkage dilatometer is used for measuring the concrete test piece under certain environmental condition, length or volume change's special instrument in the hardening process, the concrete can produce inflation and shrink phenomenon when meetting the natural environment and changing, the inflation and the shrink of concrete all can arouse the fracture of wall body, influence the index of concrete durability evaluation, consequently, it is very important to the detection of concrete inflation and contractility, it detects to need to use the concrete shrinkage dilatometer to recycled concrete in recycled concrete's the testing process.

According to the Chinese patent No. CN207336532U, the technical scheme of the concrete expansion and contraction instrument is characterized by comprising a left side plate and a right side plate, wherein the left side plate and the right side plate are connected through a base, lifting grooves are formed in the left side plate and the right side plate, sliding grooves are formed in two sides of each lifting groove, a moving block is connected in each sliding groove in a sliding mode and is controlled by a sliding mechanism to slide up and down in each lifting groove, a spiral rod is fixedly connected to the moving block on the left side plate in a threaded mode, and a dial indicator is fixedly connected to the moving block on the right side plate.

However, above-mentioned patent is in the use, and the hob rotates and carries out the displacement through the screw and drive contact plate and concrete sample contact, does not have the structure after the contact and fixes the hob for the easy atress of contact plate takes place the displacement and causes the influence to the detection, needs have the structure to fix the hob, and when right side board was fixed with the base simultaneously, it was fixed to rotate production pressure through positioning bolt, makes the right side board take place easily not hard up, needs have the structure to carry out quick connection fixed with the base right side board.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: in order to solve the problem that the structure is needed to fix the screw rod and the structure is needed to quickly connect and fix the right side plate and the base, the concrete contraction and expansion instrument connecting structure is provided.

In order to achieve the purpose, the utility model provides the following technical scheme: a concrete contraction and expansion instrument connection structure comprising:

the main body comprises a base, a left side plate, a right side plate, a moving block, a spiral rod and a rotating disc, wherein the left side plate is fixedly connected to the top end of the base, the right side plate is connected to the outer wall of the base in a sliding mode, the moving block is connected to the inner wall of the left side plate in a sliding mode, the spiral rod is rotatably connected to the outer wall of the moving block, and the rotating disc is fixedly connected to one end of the spiral rod;

the fixing mechanism comprises a movable rod, a rotating block, a clamping groove and a clamping block, the movable rod is connected to the outer wall of the rotating disc in a sliding mode, the rotating block is connected to the top end of the moving block, the clamping groove is formed in the outer wall of the rotating block, and the clamping block is connected to the top end of the moving block and one side of the rotating block;

and the positioning mechanism is positioned on the outer wall and inside of the right side plate and used for quickly fixing the right side plate and the base.

As a still further scheme of the utility model: the connecting spring is connected between the clamping block and the moving block, a limiting groove is formed in the outer wall of the rotating disc, one end of the moving rod is connected with a limiting block, a moving lead screw is connected to the inner wall of the moving rod, and one end of the moving lead screw is connected with the rotating block.

As a still further scheme of the utility model: the positioning mechanism comprises a movable groove, a movable plate, a fixed plate, a sliding groove and a fixed groove, the movable groove is arranged on the top end of the right side plate, the movable plate is connected to the inner wall of the movable groove in a rotating mode, the fixed plate is connected to the upper end of the bottom of the right side plate, the sliding groove is arranged on the outer wall of the base, the fixed groove is arranged on the top end of the sliding groove, one side, located on the movable plate, of the inner wall of the movable groove is connected with a limiting column, two ends of the movable plate are connected with first gears, the outer wall of the first gears is connected with second gears, the bottom ends of the second gears are connected with third gears, the outer wall of the third gears is connected with fourth gears, one ends of the fourth gears are connected with fixed screws, the outer wall of the fixed screws is connected with fixed blocks, and the top ends of the fixed blocks are connected with the fixed plates.

As a still further scheme of the utility model: the outer wall of the moving block is provided with a threaded hole, and the internal thread of the threaded hole is attached to the external thread of the screw rod.

As a still further scheme of the utility model: the shape of spacing groove is the annular, the inner wall of spacing groove and the outer wall of stopper laminate mutually, the draw-in groove is provided with a plurality of, the inner wall of draw-in groove and the outer wall of fixture block laminate mutually.

As a still further scheme of the utility model: the inner wall of the movable rod is provided with an internal thread, and the external thread of the movable screw rod is attached to the internal thread of the movable rod.

As a still further scheme of the utility model: one end of the limiting column is a hemispherical surface, a limiting spring is connected between the limiting column and the movable groove, the outer wall of the movable plate is attached to the inner wall of the movable groove, and the inner wall of the fixed groove is attached to the outer wall of the fixed plate.

As a still further scheme of the utility model: the teeth of a cogwheel of first gear and the tooth's socket of second gear mesh mutually, the teeth of a cogwheel of third gear and the tooth's socket of fourth gear mesh mutually, the inner wall of fixed block is provided with the internal thread, the internal thread of fixed block and lead screw's external screw thread laminate mutually, be connected through the pivot between fixed block and the fixed plate, two connect through the pivot between the fixed plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. by arranging the fixing mechanism, when the screw rod rotates, the clamping block is pushed to move out of the clamping groove, the fixing of the rotating block is cancelled, the screw rod is rotated to drive the rotating disc to rotate and displace, the rotating disc displaces to drive the movable rod to displace, the movable rod displaces to drive the movable lead screw to rotate, the movable lead screw rotates to drive the rotating block to rotate, after the rotating block reaches a proper position, the clamping block is loosened, the clamping block is displaced under the elastic action of the connecting spring and enters the clamping groove to fix the rotating block, so that the screw rod is fixed, and the screw rod is convenient to fix after the screw rod rotates;

2. through setting up positioning mechanism, when fixing the right side board, promote right side board to suitable position after, rotate the opposite side of fly leaf to spacing post, spacing post carries on spacingly to the fly leaf, and the fly leaf rotates and drives the fixed plate displacement and get into the fixed slot, fixes the right side board, when demolising, rotates the fly leaf and resets, drives the fixed plate position and shifts out the fixed slot, and the cancellation is convenient for carry out quick fixed to right side board and base to the fixed of right side board.

Drawings

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

figure 2 is a cross-sectional view of a moving mass of the utility model;

FIG. 3 is a schematic structural view of a movable trough according to the present invention;

FIG. 4 is a schematic view of the installation of the first gear of the present invention;

fig. 5 is a schematic view of the mounting of the fixing block of the present invention.

In the figure: 1. a main body; 101. a base; 102. a left side plate; 103. a right side plate; 104. a moving block; 105. a screw rod; 106. rotating the disc; 2. a fixing mechanism; 201. a movable rod; 202. rotating the block; 203. a card slot; 204. a clamping block; 205. a connecting spring; 206. a limiting groove; 207. a limiting block; 208. a movable screw rod; 3. a positioning mechanism; 301. a movable groove; 302. a movable plate; 303. a fixing plate; 304. a limiting column; 305. a first gear; 306. a second gear; 307. a third gear; 308. a fourth gear; 309. fixing the screw rod; 310. a fixed block; 311. a chute; 312. and fixing the grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.

Referring to fig. 1 to 5, in an embodiment of the present invention, a concrete contraction and expansion instrument connection structure includes:

the main body 1 comprises a base 101, a left side plate 102, a right side plate 103, a moving block 104, a screw rod 105 and a rotating disc 106, wherein the left side plate 102 is fixedly connected to the top end of the base 101, the right side plate 103 is slidably connected to the outer wall of the base 101, the moving block 104 is slidably connected to the inner wall of the left side plate 102, the screw rod 105 is rotatably connected to the outer wall of the moving block 104, and the rotating disc 106 is fixedly connected to one end of the screw rod 105;

the fixing mechanism 2 comprises a movable rod 201, a rotating block 202, a clamping groove 203 and a clamping block 204, the movable rod 201 is connected to the outer wall of the rotating disc 106 in a sliding mode, the rotating block 202 is connected to the top end of the moving block 104, the clamping groove 203 is arranged on the outer wall of the rotating block 202, and the clamping block 204 is connected to the top end of the moving block 104 and one side of the rotating block 202;

the positioning mechanism 3 is located on the outer wall and inside of the right side plate 103, and rapidly fixes the right side plate 103 and the base 101.

Please refer to fig. 1 and fig. 2, a connection spring 205 is connected between the latch 204 and the moving block 104, a limit groove 206 is disposed on the outer wall of the rotating disc 106, a limit block 207 is connected to one end of the moving rod 201, a moving screw 208 is connected to the inner wall of the moving rod 201, and one end of the moving screw 208 is connected to the rotating block 202, so as to facilitate the rotating block 202 to rotate.

Please refer to fig. 1, 3, 4 and 5, the positioning mechanism 3 includes a movable slot 301, a movable plate 302, a fixed plate 303, a sliding slot 311 and a fixed slot 312, the movable slot 301 is disposed at the top end of the right side plate 103, the movable plate 302 is rotatably connected to the inner wall of the movable slot 301, the fixed plate 303 is connected to the upper end of the bottom of the right side plate 103, the sliding slot 311 is disposed on the outer wall of the base 101, the fixed slot 312 is disposed at the top end of the sliding slot 311, the inner wall of the movable slot 301 is located at one side of the movable plate 302 and connected to a limit post 304, both ends of the movable plate 302 are connected to a first gear 305, the outer wall of the first gear 305 is connected to a second gear 306, the bottom end of the second gear 306 is connected to a third gear 307, the outer wall of the third gear 307 is connected to a fourth gear 308, one end of the fourth gear 308 is connected to a fixed screw rod 309, the outer wall of the fixed block 309 is connected to a fixed block 310, the top end of the fixed block 310 is connected to the fixed plate 303, the right side plate 103 and the base 101 are easily and quickly fixed.

Please refer to fig. 1 and 2, the outer wall of the moving block 104 is provided with a threaded hole, and the inner thread of the threaded hole is engaged with the outer thread of the screw rod 105, so that the screw rod 105 can rotate and displace through the threads.

Please refer to fig. 1 and fig. 2, the limiting groove 206 is annular, the inner wall of the limiting groove 206 is attached to the outer wall of the limiting block 207, so that the limiting block 207 can slide on the inner wall of the limiting groove 206, the plurality of clamping grooves 203 are provided, the inner wall of the clamping groove 203 is attached to the outer wall of the clamping block 204, and the inner wall of the clamping groove 203 is attached to the outer wall of the clamping block 204 for fixation.

Please refer to fig. 1 and fig. 2, the inner wall of the movable rod 201 is provided with an internal thread, and the external thread of the movable screw 208 is attached to the internal thread of the movable rod 201, so that the movable rod 201 can move to drive the movable screw 208 to rotate.

Please refer to fig. 1, fig. 3, fig. 4 and fig. 5, one end of the limiting column 304 is a hemisphere, a limiting spring is connected between the limiting column 304 and the movable groove 301 to limit the movable plate 302, an outer wall of the movable plate 302 is attached to an inner wall of the movable groove 301 to facilitate the movable plate 302 to rotate on the inner wall of the movable groove 301, an inner wall of the fixing groove 312 is attached to an outer wall of the fixing plate 303 to facilitate the inner wall of the fixing groove 312 to be attached to the outer wall of the fixing plate 303 to be fixed.

Please refer to fig. 1, fig. 3, fig. 4 and fig. 5, the teeth of the first gear 305 are engaged with the teeth grooves of the second gear 306, so that the first gear 305 rotates to drive the second gear 306 to rotate, the teeth of the third gear 307 are engaged with the teeth grooves of the fourth gear 308, so that the third gear 307 rotates to drive the fourth gear 308 to rotate, the inner wall of the fixing block 310 is provided with internal threads, the internal threads of the fixing block 310 are attached to the external threads of the fixing screw 309, so that the fixing screw 309 rotates to drive the fixing block 310 to displace, the fixing block 310 is connected with the fixing plate 303 through a rotating shaft, so that the fixing block 310 and the fixing plate 303 rotate relatively, the two fixing plates 303 are connected through the rotating shaft, and the two fixing plates 303 rotate relatively.

The working principle of the utility model is as follows: firstly, when the screw 105 is rotated, the latch 204 is pushed to move out of the latch groove 203, the fixing of the rotating block 202 is cancelled, the rotating screw 105 drives the rotating disc 106 to rotate and move, the rotating disc 106 moves to drive the movable rod 201 to move, the movable rod 201 moves to drive the movable screw 208 to rotate, the movable screw 208 rotates to drive the rotating block 202 to rotate, after the appropriate position is reached, the latch 204 is released, the latch 204 moves under the elastic force of the connecting spring 205 to enter the latch groove 203 to fix the rotating block 202, so as to fix the screw 105, so that the screw 105 is fixed after the screw 105 rotates, when the right side plate 103 is fixed, after the right side plate 103 is pushed to the appropriate position, the movable plate 302 is rotated to the other side of the limiting column 304, the limiting column 304 limits the movable plate 302, the movable plate 302 rotates to drive the first gear 305 to rotate, first gear 305 rotates and drives second gear 306 to rotate, second gear 306 rotates and drives third gear 307 to rotate, third gear 307 rotates and drives fourth gear 308 to rotate, fourth gear 308 rotates and drives fixed screw 309 to rotate, fixed screw 309 rotates and drives two fixed blocks 310 to be close to each other and to be displaced, fixed block 310 displaces and drives fixed plate 303 to be displaced and enter fixed slot 312, right side plate 103 is fixed, when demolishing, movable plate 302 is rotated to reset, fixed plate 303 is driven to be displaced out of fixed slot 312, the fixation to right side plate 103 is cancelled, and the quick fixation to right side plate 103 and base 101 is facilitated.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. A concrete contraction and expansion instrument connecting structure is characterized by comprising:

the main body (1) comprises a base (101), a left side plate (102), a right side plate (103), a moving block (104), a screw rod (105) and a rotating disc (106), wherein the left side plate (102) is fixedly connected to the top end of the base (101), the right side plate (103) is slidably connected to the outer wall of the base (101), the moving block (104) is slidably connected to the inner wall of the left side plate (102), the screw rod (105) is rotatably connected to the outer wall of the moving block (104), and the rotating disc (106) is fixedly connected to one end of the screw rod (105);

the fixing mechanism (2) comprises a movable rod (201), a rotating block (202), a clamping groove (203) and a clamping block (204), the movable rod (201) is connected to the outer wall of the rotating disc (106) in a sliding mode, the rotating block (202) is connected to the top end of the moving block (104), the clamping groove (203) is arranged on the outer wall of the rotating block (202), and the clamping block (204) is connected to the top end of the moving block (104) and one side of the rotating block (202);

and the positioning mechanism (3) is positioned on the outer wall and the inner part of the right side plate (103) and used for quickly fixing the right side plate (103) and the base (101).

2. The concrete contraction and expansion instrument connecting structure according to claim 1, wherein a connecting spring (205) is connected between the fixture block (204) and the moving block (104), a limiting groove (206) is formed in the outer wall of the rotating disc (106), a limiting block (207) is connected to one end of the moving rod (201), a movable lead screw (208) is connected to the inner wall of the moving rod (201), and one end of the movable lead screw (208) is connected to the rotating block (202).

3. The concrete contraction and expansion instrument connecting structure according to claim 1, wherein the positioning mechanism (3) comprises a movable groove (301), a movable plate (302), a fixed plate (303), a sliding groove (311) and a fixed groove (312), the movable groove (301) is disposed at the top end of the right side plate (103), the movable plate (302) is rotatably connected to the inner wall of the movable groove (301), the fixed plate (303) is connected to the upper end of the bottom of the right side plate (103), the sliding groove (311) is disposed on the outer wall of the base (101), the fixed groove (312) is disposed at the top end of the sliding groove (311), the inner wall of the movable groove (301) is located at one side of the movable plate (302) and is connected with a limiting column (304), two ends of the movable plate (302) are connected with first gears (305), and the outer wall of the first gear (305) is connected with a second gear (306), the bottom end of the second gear (306) is connected with a third gear (307), the outer wall of the third gear (307) is connected with a fourth gear (308), one end of the fourth gear (308) is connected with a fixed screw rod (309), the outer wall of the fixed screw rod (309) is connected with a fixed block (310), and the top end of the fixed block (310) is connected with the fixed plate (303).

4. The concrete contraction and expansion instrument connecting structure according to claim 1, wherein the outer wall of the moving block (104) is provided with a threaded hole, and the inner thread of the threaded hole is fit with the outer thread of the screw rod (105).

5. The concrete contraction and expansion instrument connecting structure according to claim 2, wherein the limiting groove (206) is annular, the inner wall of the limiting groove (206) is attached to the outer wall of the limiting block (207), the plurality of clamping grooves (203) are provided, and the inner wall of each clamping groove (203) is attached to the outer wall of each clamping block (204).

6. The concrete contraction and expansion instrument connecting structure according to claim 2, wherein the inner wall of the movable rod (201) is provided with an internal thread, and the external thread of the movable screw rod (208) is attached to the internal thread of the movable rod (201).

7. The concrete contraction and expansion instrument connecting structure according to claim 3, wherein one end of the limiting column (304) is a hemispherical surface, a limiting spring is connected between the limiting column (304) and the movable groove (301), the outer wall of the movable plate (302) is attached to the inner wall of the movable groove (301), and the inner wall of the fixed groove (312) is attached to the outer wall of the fixed plate (303).

8. The concrete contraction and expansion instrument connecting structure according to claim 3, wherein the gear teeth of the first gear (305) are meshed with the gear grooves of the second gear (306), the gear teeth of the third gear (307) are meshed with the gear grooves of the fourth gear (308), internal threads are arranged on the inner wall of the fixing block (310), the internal threads of the fixing block (310) are attached to the external threads of the fixing screw rod (309), the fixing block (310) is connected with the fixing plates (303) through rotating shafts, and the two fixing plates (303) are connected through the rotating shafts.