Concrete test block mold

Abstract

The utility model discloses a concrete test block mold. The concrete test block mold comprises a bottom mold plate, two side mold plates and at least two partition mold plates, the two side templates are oppositely arranged left and right at an interval; the partition templates are located between the two side templates and distributed at intervals in the front-back direction. A supporting plate and a limiting plate are respectively arranged at the left end and the right end of the bottom template; the limiting plate is used for limiting the side template on the right side; a pre-tightening screw rod is mounted on the support plate; a front limiting pin used for limiting the foremost partition template is arranged on the bottom template; a rear limiting pin used for limiting the partition template on the rearmost side is arranged on the bottom template. First clamping grooves are symmetrically formed in the opposite faces of the two side formworks and used for allowing the left end and the right end of the partition formwork to be inserted therein. According to the utility model, a plurality of concrete test blocks can be prepared at one time, meanwhile, the pretightening force can be improved, the expansion influence is reduced, and the device is not seized and is easier to disassemble.

Description

Technical Field

[0001] The utility model relates to a concrete test block mould. Background Art

[0002] Concrete strength is an important factor affecting the reliability of concrete structures. To ensure the reliability of the structure, concrete production control and qualification assessment must be carried out. Concrete test blocks are generally made using molds.

[0003] The prior art that is closest to the present application is a concrete test block mold (authorization number CN211104634U), which has a bottom mold, multiple intermediate baffle molds and two side baffle molds. The bottoms of the multiple intermediate baffle molds are detachably connected to the bottom mold, the two sides of the multiple intermediate baffle molds are detachably connected to the side baffle molds, and the side walls of the side baffle molds are in conflict with the side walls of the bottom baffle mold. The concrete test block mold can form multiple concrete test blocks at one time, and realizes a detachable assembly mode setting, which is convenient for experimenters to disassemble and assemble. However, compared with the present application, it still has the following shortcomings and is explained as follows: since the intermediate baffle molds and the two side baffle molds are matched with the positioning protrusions and positioning grooves without pre-tightening force, the size of the concrete in the mold will expand after solidification, which will squeeze the side molds of the mold, thereby causing gaps at the mold joints and affecting the product quality; at the same time, the positioning protrusions and the positioning grooves (i.e., the connection points) are squeezed and shaped by the concrete solidification and are bitten to each other, making it difficult to disassemble. Utility Model Content

[0004] The utility model provides a concrete test block mold to solve the problems in the prior art that there is no pre-tightening force, gaps are easily generated due to expansion after the concrete in the mold solidifies, affecting product quality, and joints are locked together and difficult to disassemble.

[0005] In order to achieve the above-mentioned purpose, the scheme of the utility model is: a concrete test block mold, comprising a bottom template, two side templates and at least two partition templates; the two side templates are arranged relatively spaced apart on the left and right; each of the partition templates is located between the two side templates and is spaced apart along the front and rear directions; it is characterized in that: a support plate and a limit plate are respectively provided at the left and right ends of the bottom template; the limit plate is used to limit the position of one of the side templates located on the right; a pre-tightening screw for tightening or loosening one of the side templates located on the left is installed on the support plate; a front limit pin for limiting the position of one of the partition templates on the front side and a rear limit pin for limiting the position of one of the partition templates on the rear side are provided on the bottom template; first card grooves are symmetrically provided on the opposite surfaces of the two side templates and are used for the left and right ends of each of the partition templates to be inserted.

[0006] With the above scheme, during assembly, the front limit pin and the rear limit pin are first inserted or fixed on the upper surface of the bottom template, and then the two side templates and each partition template are placed on the upper surface of the bottom template; the side template on the right is contacted and matched with the limit plate to limit the position; the left and right ends of each partition template are symmetrically inserted into the first slots of the two side templates for positioning; and the pre-tightening screw is rotated to press against the left side template to the right and generate a pre-tightening force, while limiting the loose displacement of the left and right side templates, but ensuring the stability of the position of each partition template. Then pour concrete into the rectangular cavity separated by each partition template; then press the gravity pressure plate on the top of the mold. When the concrete in the mold solidifies, loosen the left side template by rotating the pre-tightening screw; then separate each template from the product to obtain multiple concrete test blocks at one time. During the concrete solidification process, due to the combination of the pre-tightening screw and the limit plate and the left-right clamping action and the pre-tightening force through the rotation of the pre-tightening screw, the two side templates can remain relatively fixed in the left-right direction, and can resist the expansion and extrusion of the concrete in the mold during solidification in the left-right direction, so that there will be no gap in the mold splicing.

[0007] At the same time, the front limit pin prevents the partition plate from moving forward and deforming by limiting the frontmost partition plate, and the rear limit pin prevents the partition plate from moving backward and deforming by limiting the rearmost partition plate, thereby ensuring that the front and rear partition plates will not move backwards and can maintain a relatively fixed position, and can resist the expansion and extrusion of the concrete in the mold in the front and rear directions during solidification, so that no gaps will be generated in the mold splicing, thereby ensuring product quality.

[0008] In summary, the present technical solution adopts a structural design different from the existing one, and can solve the problem that the existing mold has no pre-tightening force, when the concrete in the mold solidifies, gaps are easily generated due to expansion, affecting product quality, and causing the joints to bite each other and be difficult to disassemble.

[0009] Furthermore, the support plate is provided with a threaded hole; the pre-tightening screw is connected with the threaded hole; and the right end of the pre-tightening screw can be pressed against or loosened against one of the side templates on the left by rotating the pre-tightening screw. When the pre-tightening screw is rotated, the pre-tightening screw moves to the left or right in the threaded hole, thereby realizing that the right end of the pre-tightening screw is pressed against or loosened against one of the side templates on the left.

[0010] Furthermore, a second slot is provided on the left side of the limit plate; and the width of the second slot in the front-to-back direction matches the length of the side template in the front-to-back direction on the right side. During assembly, the limit plate is inserted into the second slot to limit the front-to-back displacement and rightward displacement, which can ensure the stability of the limit plate, especially prevent the front-to-back displacement from affecting the overall stability of the mold.

[0011] Furthermore, the first slot is a V-shaped slot; the partition template is symmetrically provided with V-shaped parts at both ends. Since the V-shaped parts at both ends of the partition template can be matched with the V-shaped slots of the two side templates without gaps, the position is more accurate, and the disassembly is easier (compared to the existing slots or other shapes), the partition template can be better restrained and fixed without loosening in the front, back, left, and right directions.

[0012] Furthermore, the partition plate has four, so that three concrete test blocks can be made at one time.

[0013] Furthermore, there are at least two front limit pins which are spaced apart in the left-right direction, so that multiple combined limit positions can be realized to improve the limit effect.

[0014] Furthermore, there are at least two rear limit pins which are spaced apart in the left-right direction, so that multiple combined limit positions can be realized to improve the limit effect.

[0015] Furthermore, a back-tightening nut is mounted on the pre-tightening screw and the back-tightening nut is located on the right side of the support plate. When the mold is assembled, after the pre-tightening screw is pressed against one of the side templates on the left, the back-tightening nut is rotated until it contacts and tightens against the right side of the support plate, thereby preventing the pre-tightening screw from loosening and ensuring that the force of the pre-tightening screw on the side template on the left remains unchanged and prevents it from weakening.

[0016] Furthermore, a tool hole is provided on the outer side wall of the back-tightening nut, and an arm rod or an L-wrench labor-saving rod can be inserted into the tool hole, so that the operation is more labor-saving when rotating the back-tightening nut.

[0017] Furthermore, an operating rod is provided on the left end of the pre-tightening screw rod, so that the operation is more convenient and labor-saving when the pre-tightening screw rod is rotated.

[0018] Beneficial effects of the utility model:

[0019] First, the utility model adopts a different structural design from the existing one, which can meet the advantages of being able to prepare multiple concrete test blocks at one time, while also improving the pre-tightening force, reducing the expansion effect, and preventing the mold from being stuck and making it easier to disassemble; it can solve the problem that the mold in the existing technology has no pre-tightening force, and when the concrete in the mold solidifies, gaps are easily generated due to expansion, affecting the product quality, and causing the joints to be stuck to each other and difficult to disassemble;

[0020] Secondly, in the process of concrete solidification, the utility model can keep the two side templates relatively fixed in the left and right directions due to the combined clamping action of the pre-tightening screw and the limiting plate, and the pre-tightening force of the pre-tightening screw during rotation, so that the expansion and extrusion of the concrete in the mold during solidification can be resisted in the left and right directions, so that no gap will be generated in the mold splicing; at the same time, the front limiting pin prevents the partition template from moving forward and deforming by limiting the frontmost partition template, and the rear limiting pin prevents the partition template from moving backward and deforming by limiting the rearmost partition template, so that the front and rear partition templates will not move back to back, and can keep their positions relatively fixed, and can resist the expansion and extrusion of the concrete in the mold during solidification in the front and back directions, so that no gap will be generated in the mold splicing, so the product quality can be guaranteed;

[0021] Second, in the present invention, since the first card groove is a V-shaped groove, the left and right ends of the partition template are symmetrically provided with V-shaped parts. Since the two V-shaped parts on the left and right ends of the partition template are respectively connected with the V-shaped grooves of the two side templates and are pressed against by the prestress generated by the pre-tightening screw, a seamless fit can be achieved, the position is more precise, and disassembly is easier than the existing grooves or other shapes. The partition template can be better restrained and fixed without loosening front, back, left, and right. Compared with the first embodiment, the V-shaped part of the partition template and the V-shaped groove of the side template can be easily separated when taking out the product and disassembling it, which is easier and more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of a concrete test block mold in the first embodiment of the utility model.

[0023] Figure 2 It is a top view of a concrete test block mold in Example 1 of the utility model.

[0024] Figure 3-4 It is a three-dimensional diagram of a concrete test block mold in the first embodiment of the utility model.

[0025] Figure 5 It is a front view of a concrete test block mold in the second embodiment of the present utility model.

[0026] Figure 6 It is a top view of a concrete test block mold in the second embodiment of the present utility model.

[0027] Figure 7-8 It is a stereoscopic diagram of a concrete test block mold in the second embodiment of the present utility model. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0029] Example 1: See Figure 1-4 A concrete test block mold comprises a bottom mold 1, two side molds 2 and four partition molds 3.

[0030] See also Figure 2 The two side templates 2 are arranged at a relative interval on the left and right; each of the partition templates 3 is located between the two side templates 2 and is evenly spaced along the front-to-back direction; there are four partition templates 3, so that three concrete test blocks can be made at a time.

[0031] See also Figure 1-4 The left and right ends of the bottom template 1 are respectively provided with a support plate 4 and a limit plate 5; the support plate 4 and the limit plate 5 are integrated with the bottom template 1.

[0032] See also Figure 1-4 The limiting plate 5 is used to limit the side template 2 on the right side. The limiting plate 5 blocks and limits the side template 2 on the right side from moving to the right.

[0033] See also Figure 1-4 Furthermore, a second slot 5-1 is provided on the left side of the limit plate 5; and the width of the second slot 5-1 in the front-to-back direction matches the length of the side mold plate 2 located on the right side in the front-to-back direction. During assembly, the limit plate 5 is inserted into the second slot 5-1 to limit the front-to-back displacement and rightward displacement, which can ensure the stability of the limit plate 5, especially prevent the front-to-back displacement from affecting the overall stability of the mold.

[0034] See also Figure 1-4 , a pre-tightening screw 6 for tightening or loosening one of the side templates 2 on the left is installed on the support plate 4. Specifically, a threaded hole is provided on the support plate 4; the pre-tightening screw 6 is matched and connected with the threaded hole; and the right end of the pre-tightening screw 6 can be tightened or loosened against one of the side templates 2 on the left by rotating the pre-tightening screw 6. When the pre-tightening screw 6 is rotated, the pre-tightening screw 6 moves leftward or rightward in the threaded hole, thereby achieving the effect of tightening or loosening the right end of the pre-tightening screw 6 against one of the side templates 2 on the left.

[0035] Furthermore, a back-tightening nut 9 is mounted on the pre-tightening screw 6 and the back-tightening nut 9 is located on the right side of the support plate 4. When the mold is assembled, after the pre-tightening screw 6 is pressed against one of the side templates 2 on the left, the back-tightening nut 9 is rotated until it contacts and tightens against the right side of the support plate 4, which can prevent the pre-tightening screw 6 from loosening and ensure that the force of the pre-tightening screw 6 on the side template 2 on the left remains unchanged and can prevent it from weakening.

[0036] Further, a tool hole 9-1 is provided on the outer side wall of the back-tightening nut 9. The tool hole 9-1 can be inserted with an arm or an L-wrench labor-saving rod, so that the operation is more labor-saving when rotating the back-tightening nut 9.

[0037] Furthermore, an operating rod 10 is provided on the left end of the pre-tightening screw rod 6. When the pre-tightening screw rod 6 is rotated, the operation is more convenient and labor-saving.

[0038] See also Figure 2 The two side templates 2 are symmetrically provided with first slots 2-1 on the opposite surfaces thereof and are used for inserting the left and right ends of each partition template 3. In this embodiment, the first slots 2-1 are grooves, and the front and rear width of the grooves matches the thickness of the partition template 3. Figure 2 The two side templates 2 are provided with four first slots 2-1 on the inner side surfaces thereof which are equally spaced along the front-to-back direction and are symmetrically distributed.

[0039] See also Figure 1-4 The bottom template 1 is provided with a front limiting pin 7 for limiting the position of the partition template 3 located at the frontmost side and a rear limiting pin 8 for limiting the position of the partition template 3 located at the rearmost side.

[0040] Furthermore, the front limit pins 7 have at least two and are spaced apart in the left and right directions. Multiple combined limit positions can be achieved to improve the limit effect. Specifically, in this embodiment, the front limit pins 7 have two and are spaced apart in the left and right directions. Preferably, the lower end of the front limit pin 7 is inserted into the front limit pin hole of the bottom template 1 and can be pulled out upward.

[0041] Furthermore, the rear limit pins 8 have at least two and are spaced apart in the left and right directions. Multiple combined limit positions can be achieved to improve the limit effect. Specifically, in this embodiment, the rear limit pins 8 have two and are spaced apart in the left and right directions. Preferably, the lower end of the rear limit pin 8 is inserted into the rear limit pin hole of the bottom template 1 and can be pulled out upward.

[0042] See also Figure 1-4In the assembly of this embodiment, the front stop pin 7 and the rear stop pin 8 are first inserted on the upper surface of the bottom template 1, the two side templates 2 and each of the partition templates 3 are placed on the upper surface of the bottom template 1, and the right side template 2 is inserted into the second slot 5-1 on the left side of the stop plate 5 for position limiting; the left and right ends of each of the partition templates 3 are symmetrically inserted into the first slots 2-1 of the two side templates 2 for positioning; then the pre-tightening screw 6 is rotated to press the left side template 2 to the right and generate a pre-tightening force, while limiting the mutual loose displacement of the left and right side templates 2, but ensuring the position of each partition template 3 is stable. Then concrete is poured into the rectangular cavity separated by each partition template 3; then the gravity pressure plate (not shown in the figure) or the pressing mechanism presses the mold. When the concrete in the mold solidifies, the left side template 2 is first loosened by rotating the pre-tightening screw 6, and then the front stop pin 7 and the rear stop pin 8 are pulled out, and then each template and the product (concrete test block) are separated from each other to obtain multiple concrete test blocks at one time. During the concrete solidification process, due to the combined clamping action of the pre-tightening screw 6 and the limiting plate 5, and the pre-tightening force of the pre-tightening screw 6, the two side templates 2 can remain relatively fixed in the left and right directions, and can resist the expansion and extrusion of the concrete in the mold during solidification in the left and right directions, so that there will be no gap in the mold splicing.

[0043] At the same time, the front limit pin 7 prevents the partition plate 3 from moving forward and deforming by limiting the frontmost partition plate 3, and the rear limit pin 8 prevents the partition plate 3 from moving backward and deforming by limiting the rearmost partition plate 3, thereby ensuring that the front and rear partition plates 3 will not move back to back and can maintain a relatively fixed position, and can resist the expansion and extrusion of the concrete in the mold in the front and rear directions during solidification, so that no gaps will be generated when the mold is spliced, thereby ensuring product quality.

[0044] In summary, this embodiment adopts a structural design different from the existing one, and can solve the problem that the existing mold has no pre-tightening force, when the concrete in the mold solidifies, gaps are easily generated due to expansion, affecting product quality, and causing the joints to bite each other and difficult to disassemble.

[0045] Embodiment 2: This embodiment is basically the same as Embodiment 1, except that:

[0046] See also Figure 5-8In this embodiment, the first slot 2-1 is a V-shaped slot; the V-shaped portions 3-1 are symmetrically provided at the left and right ends of the partition template 3. Since the two V-shaped portions 3-1 at the left and right ends of the partition template 3 are respectively connected with the V-shaped slots of the two side templates 2 and are pressed against the prestress generated by the pre-tightening screw 6, a seamless fit can be achieved, the position is more precise, and the disassembly is easier than the existing grooves or other shapes. The partition template 3 can be better restrained and fixed without loosening forward, backward, left, or right. Compared with the first embodiment, the V-shaped portion 3-1 of the partition template 3 and the V-shaped slot of the side template 2 can be easily separated from each other when taking out the product and disassembling it, which is easier and more labor-saving.

[0047] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A concrete test block mold, comprising a bottom mold (1), two side molds (2) and at least two partition molds (3); the two side molds (2) are arranged with a relative spacing on the left and right; each of the partition molds (3) is located between the two side molds (2) and is spaced apart in the front-rear direction; characterized in that: The left and right ends of the bottom template (1) are respectively provided with a support plate (4) and a limit plate (5); the limit plate (5) is used to limit the position of one of the side templates (2) located on the right; the support plate (4) is provided with a pre-tightening screw (6) for tightening or loosening one of the side templates (2) located on the left; The bottom template (1) is provided with a front limit pin (7) for limiting the position of the frontmost partition template (3) and a rear limit pin (8) for limiting the position of the rearmost partition template (3); First clamping grooves (2-1) are symmetrically arranged on the opposite surfaces of the two side mold plates (2) and are used for the left and right ends of each partition mold plate (3) to be inserted.

2. A concrete test block mold according to claim 1, characterized in that: The support plate (4) is provided with a threaded hole; the pre-tightening screw (6) is connected in cooperation with the threaded hole; and the pre-tightening screw (6) can be rotated to tighten or loosen the right end of the side template (2) located on the left side.

3. A concrete test block mold according to claim 1, characterized in that: A second slot (5-1) is provided on the left side of the limiting plate (5); and the width of the second slot (5-1) in the front-to-back direction matches the length of one of the side templates (2) located on the right side in the front-to-back direction.

4. A concrete test block mold according to claim 1, characterized in that: The first clamping groove (2-1) is a V-shaped groove; and V-shaped parts (3-1) are symmetrically provided at the left and right ends of the partition plate (3).

5. A concrete test block mold according to claim 1, characterized in that: The number of the partition plates (3) is four.

6. A concrete test block mold according to claim 1, characterized in that: The front limit pins (7) are provided with at least two and are spaced apart in the left-right direction.

7. A concrete test block mold according to claim 1, characterized in that: The rear limit pins (8) are provided with at least two and are spaced apart in the left-right direction.

8. A concrete test block mold according to claim 1, characterized in that: A back-tightening nut (9) is sleeved on the pre-tightening screw rod (6), and the back-tightening nut (9) is located on the right side of the support plate (4).

9. A concrete test block mold according to claim 8, characterized in that: A tool hole (9-1) is provided on the outer side wall of the back-tightening nut (9).

10. A concrete test block mold according to any one of claims 1 to 9, characterized in that: An operating rod (10) is provided on the left end of the pre-tightening screw rod (6).

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