Vicat instrument limiter for measuring cement setting time

Abstract

The utility model discloses a Vicat instrument limiter for measuring cement setting time, which comprises an annular limiting piece connected to a sliding rod in a sliding mode, the limiting piece is located above a support, a threaded through hole is formed in one side of the limiting piece, and an adjusting bolt is connected into the threaded through hole in a threaded mode. Through the structure, the problem that a Vicat instrument test needle for measuring the cement setting time is prone to deformation is solved, the detection precision is ensured, the service life of the test needle is prolonged, and meanwhile the Vicat instrument test needle is simple in structure, low in cost and convenient to install and use.

Description

Technical Field

[0001] This utility model relates to the technical field of Vicat apparatus, and more specifically, to a Vicat apparatus limiter for determining cement setting time. Background Technology

[0002] The setting time of cement is the time required from the addition of water to the point where the cement loses its plasticity and its fluidity decreases. It is an important indicator for cement quality control. In current technology, the setting time of cement is usually determined using a Vicat apparatus. Figure 3 As shown, the commonly used Vicat apparatus includes a base 10, a bracket 1, a probe 2, a locking device 3 for locking the sliding rod 7, an indicator plate 4 mounted on the front of the bracket 1, and a pointer 5 slidably located in the bayonet 6. However, because the existing Vicat apparatus does not have a limiter, the probe can easily bend and deform due to misoperation by directly impacting the base. For example, when loosening the locking device 3 and adjusting the pointer 5 to zero, if the sliding rod 7 is accidentally released, the probe will directly impact the bottom, which can lead to bending and deformation of the probe in severe cases. The deformed probe will greatly affect the detection accuracy. Utility Model Content

[0003] In view of the above-mentioned technical problems in related technologies, this utility model provides a Vicat apparatus limiter for determining cement setting time, which can solve the above problems.

[0004] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows:

[0005] A Vicat apparatus limiter for determining cement setting time includes an annular limiting member slidably connected to a sliding rod. The limiting member is located above a support. A threaded through hole is provided on one side of the limiting member, and an adjusting bolt is threadedly connected to the threaded through hole.

[0006] Furthermore, the limiting member has a circular through hole in the middle that is adapted to the sliding rod.

[0007] Furthermore, the bolt head of the adjusting bolt is provided with anti-slip texture, and the bolt head is located on the outer side of the side of the bracket.

[0008] The beneficial effects of this utility model are as follows: The structure of this application solves the problem of easy deformation of the Vicat apparatus needle when determining the setting time of cement, which not only ensures the detection accuracy but also improves the service life of the needle. At the same time, the structure of this application is simple, low in cost, and easy to install and use. Attached Figure Description

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only constitute some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0010] The present application will be further described in detail below according to the drawings.

[0011] Figure 1 is a front view of the limiting piece and the sliding rod connection of the embodiment of the present application.

[0012] Figure 2 is a cross-sectional view of the limiting piece and the sliding rod connection of the embodiment of the present application.

[0013] Figure 3 is a front view of a prior Vicat apparatus.

[0014] In the drawings:

[0015] 1, support; 2, test needle; 3, locking device; 4, value plate; 5, pointer; 6, bayonet; 7, sliding rod; 8, limiting piece; 9, adjusting bolt; 10, base. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0017] As shown in Figures 1-2 , according to the present application, a limiting piece for a Vicat apparatus for measuring the setting time of cement is disclosed, which comprises a circular limiting piece 8 connected to a sliding rod 7, the limiting piece 8 is located above a support 1, a threaded hole is formed in one side of the limiting piece 8, and an adjusting bolt 9 is threadedly connected in the threaded hole.

[0018] In the specific use of the limiting piece, the limiting piece 8 is sleeved on the sliding rod 7, and the adjusting bolt 9 is locked and fixed by rotating. The bolt head of the adjusting bolt 9 is provided with anti-skid lines and is located outside the side surface of the support 1, so as to facilitate the twisting of the adjusting bolt 9. During the fixing process, the distance between the test needle 2 and the base needs to be observed at the same time, and when the test needle 2 is 1-2 mm away from the base 1, the adjusting bolt 9 is tightened, and the fixing is completed. Therefore, when the test needle 2 falls due to misoperation, the limiting piece 8 is supported and limited by the top surface of the support 1, so as to avoid the test needle from being hit.

[0019] In order to ensure that the total mass of the sliding rod is unchanged and the impact energy is unchanged, the mass of the sliding rod should be reduced according to the mass of the limit stop when the sliding rod is produced with the limit stop; and the position of the limit stop should be adjusted according to different test needles when the sliding rod is used.

[0020] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A Vicat apparatus limiter for use in determining the setting time of cement, characterised in that, Including the round ring limiting piece (8) that slides on the slide rod (7), the limiting piece (8) is located above the support (1), one side of the limiting piece (8) is provided with threaded through hole, the threaded through hole is threadedly connected with the adjusting bolt (9).

2. A Vicat apparatus limiter for determining the setting time of cement according to claim 1, characterized in that, The middle part of the limiting piece (8) is provided with a circular through hole matched with the slide rod (7).

3. A Vicat apparatus limiter for determining the setting time of cement according to claim 1, wherein The bolt head of the adjusting bolt (9) is provided with anti-skid lines, and the bolt head is located on the outside of the side surface of the support (1).

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