Dial gauge stand for single-beam static load test

Abstract

The utility model provides a dial indicator stand for a single-beam static load test, which relates to the technical field of dial indicator stands and comprises a lower fixed base, a first connecting rod and a second connecting rod, the first connecting rod is arranged above the lower fixed base, and the second connecting rod is arranged on one side of the head end of the first connecting rod. Rotating side supporting plates are symmetrically arranged on the two sides of the lower fixing base, an upper connecting rotating frame is fixedly arranged on the top of the lower fixing base, a first positioning screw is in threaded connection with the middle of the upper connecting rotating frame, and balancing weights are stacked on the top of the upper connecting rotating frame. The lower fixing bases are located at the bases at the two ends to measure the middle of the beam body, the lower fixing bases and the bases are kept synchronous, the situation that data errors are increased due to the fact that the bases at the two ends of the beam body settle due to a single-beam static load test is avoided, and the problem that measurement deviation is increased due to the fact that the bases at the two ends of the beam body settle in the single-beam static load test process is solved.

Description

Technical Field

[0001] This utility model relates to the field of dial gauge holder technology, and in particular to a dial gauge holder for single beam static load testing. Background Technology

[0002] The single-beam static load test examines the mechanical properties of a single beam, such as its strength, stiffness, and stability, by applying a static load to the beam. A dial indicator is used to measure the deformation of key parts of the beam, such as the span, under load. The dial indicator is fixed in place by a dial indicator mount.

[0003] The beam is supported at both ends by bases, and a counterweight is hoisted in the middle of the beam. A dial indicator is fixed to the ground in the middle of the beam via a base. The dial indicator measures the middle of the beam. During the static load test of a single beam, the bases at both ends of the beam may settle. Since the base in the middle of the beam is fixed separately, it will not settle synchronously with the base, which will increase the positional deviation between the dial indicator and the single beam, further increasing the data error. Summary of the Invention

[0004] This utility model provides a dial indicator holder for a single beam static load test. Through the coordinated extension and retraction of the first connecting rod and the first telescopic connecting rod, and the coordinated extension and retraction of the second connecting rod and the second telescopic connecting rod, it is ensured that the dial indicator held by the first fixed clamp can fit against the part of the beam to be measured. The lower fixed base is located at both ends of the base to measure the middle part of the beam. The lower fixed base and the base are kept synchronous, avoiding the settlement of the bases at both ends of the beam caused by the single beam static load test. The lower fixed base in the middle of the beam is fixed separately and will not settle synchronously with the base, thus avoiding the increase of data error.

[0005] This utility model provides a dial gauge holder for a single beam static load test, specifically including a lower fixed base, a first connecting rod, and a second connecting rod. The first connecting rod is arranged above the lower fixed base, and the second connecting rod is arranged on one side of the first connecting rod. Rotating side support plates are symmetrically arranged on both sides of the lower fixed base. An upper connecting frame is fixedly arranged on the top of the lower fixed base. A first positioning screw is screwed into the middle of the upper connecting frame. A counterweight is stacked on the top of the upper connecting frame. The lower fixed base forms a self-stabilizing structure without external assistance by stacking the counterweight on the upper connecting frame.

[0006] Furthermore, a first connecting pivot is fixedly connected to the tail end of the first connecting rod, a first telescopic connecting rod is slidably connected to the head end of the first connecting rod, and a second positioning screw is screwed to the head end of the first connecting rod, with the second positioning screw and the first telescopic connecting rod abutting against each other.

[0007] Furthermore, the bottom surface of the side support plate and the bottom surface of the lower fixed base are flush, the upper connecting frame and the first connecting column are rotatably connected, and the head end of the first positioning screw and the first connecting column are tightly abutted together.

[0008] Furthermore, the first end of the second connecting rod is slidably connected to a second telescopic connecting rod, the first end of the second telescopic connecting rod is fixedly connected to a second connecting rotating post, the second connecting rotating post is fixedly connected to the first fixing clamp, and the front and rear ends of the first fixing clamp are screwed with third positioning screws.

[0009] Furthermore, the first telescopic connecting rod is fixedly connected to the first connecting pivot at its head end, and the first connecting pivot at the head end of the first telescopic connecting rod is rotatably connected to the tail end of the second connecting rod. The third positioning screw screwed to the tail end of the second connecting rod is tightly abutted against the first connecting pivot.

[0010] Furthermore, the third positioning screw screwed to the first end of the second connecting rod and the second telescopic connecting rod are tightened together, and the length of the second connecting rod and the second telescopic connecting rod are adjusted. The third positioning screw is tightened against the second telescopic connecting rod to fix its position.

[0011] Furthermore, the third positioning screw at the front of the first fixing clamp extends through to the inside of the first fixing clamp, and the third positioning screw at the tail of the first fixing clamp abuts against the second connecting rotating column. The dial indicator is slidably installed in the front groove of the first fixing clamp.

[0012] This utility model provides a dial gauge holder for a single beam static load test, which has the following beneficial effects:

[0013] By coordinating the expansion and contraction of the first connecting rod and the first telescopic connecting rod, and the second connecting rod and the second telescopic connecting rod, it is ensured that the dial indicator held by the first fixed clamp can fit against the part of the beam to be measured. The lower fixed base is located at both ends of the base to measure the middle part of the beam. The lower fixed base and the base are kept synchronous to avoid the settlement of the bases at both ends of the beam caused by the static load test of a single beam. The lower fixed base in the middle of the beam is fixed separately and will not settle synchronously with the base, which would increase the data error.

[0014] The lower fixed base is stacked on the upper connecting frame by counterweights to form a self-stabilizing structure that does not require external assistance, which enhances the stability of the lower fixed base. Compared with traditional dial gauge bases that rely on external fixing methods such as magnetic attraction and clamping, this design avoids the risk of fixing failure caused by environmental factors (such as non-magnetic materials or insufficient surface roughness), and ensures that the position of the first fixing clamp and dial gauge will not be displaced due to vibration during test load changes. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 A schematic diagram of the overall structure of this application is shown;

[0019] Figure 2 A schematic diagram of the lower fixed base structure of this application is shown;

[0020] Figure 3 A schematic diagram of the upper connecting frame structure of this application is shown;

[0021] Figure 4 A schematic diagram of the first connecting rod structure of this application is shown;

[0022] Figure 5 A schematic diagram of the structure of the second connecting rod of this application is shown;

[0023] Figure 6 A schematic diagram of the structure in the split state of this application is shown;

[0024] Figure label:

[0025] 1. Lower fixed base; 101. Side support plate; 102. Upper connecting frame; 103. First positioning screw; 104. Counterweight block; 2. First connecting rod; 201. First connecting column; 202. First telescopic connecting rod; 203. Second positioning screw; 3. Second connecting rod; 301. Second telescopic connecting rod; 302. Second connecting column; 303. Third positioning screw; 304. First fixing clamp. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Example 1: Please refer to Figures 1 to 6 :

[0028] This utility model proposes a dial gauge base for a single beam static load test, including a lower fixed base 1, a first connecting rod 2, and a second connecting rod 3. Rotating side support plates 101 are symmetrically arranged on both sides of the lower fixed base 1. An upper connecting frame 102 is fixedly arranged on the top of the lower fixed base 1. A first positioning screw 103 is screwed into the middle of the upper connecting frame 102. A counterweight 104 is stacked on the top of the upper connecting frame 102. The lower fixed base 1 forms a self-stabilizing structure without external assistance by stacking the counterweight 104 on the upper connecting frame 102, thereby enhancing the stability of the lower fixed base 1.

[0029] A first connecting rod 2 is provided above the lower fixed base 1. A first connecting rotating column 201 is fixedly connected to the tail end of the first connecting rod 2. A first telescopic connecting rod 202 is slidably connected to the head end of the first connecting rod 2. A second positioning screw 203 is screwed onto the head end of the first connecting rod 2. The second positioning screw 203 and the first telescopic connecting rod 202 are tightly abutted together. The bottom surface of the side support plate 101 is flush with the bottom surface of the lower fixed base 1. The upper connecting rotating frame 102 and the first connecting rotating column 201 are rotatably connected. The head end of the first positioning screw 103 is tightly abutted against the first connecting rotating column 201. A [missing information - likely a design element] is provided on one side of the head end of the first connecting rod 2. The second connecting rod 3 has a second telescopic connecting rod 301 slidably connected to its first end. The second telescopic connecting rod 301 has a second connecting pivot 302 fixedly connected to its first end. The second connecting pivot 302 is fixedly connected to the first fixing clamp 304. The front and rear of the first fixing clamp 304 are screwed with third positioning screws 303. The first telescopic connecting rod 202 has a first connecting pivot 201 fixedly connected to its first end. The first connecting pivot 201 at the first end of the first telescopic connecting rod 202 is rotatably connected to the rear end of the second connecting rod 3. The third positioning screw 303 screwed to the rear end of the second connecting rod 3 and the first connecting pivot 201 are tightly abutted against each other.

[0030] In this embodiment, the third positioning screw 303 screwed to the first end of the second connecting rod 3 and the second telescopic connecting rod 301 are pressed together, and the length of the second connecting rod 3 and the second telescopic connecting rod 301 are adjusted. The third positioning screw 303 is pressed against the second telescopic connecting rod 301 to fix its position.

[0031] In this embodiment, the third positioning screw 303 at the front of the first fixing clamp 304 penetrates into the inner side of the first fixing clamp 304, and the third positioning screw 303 at the tail of the first fixing clamp 304 abuts against the second connecting rotating post 302. The dial indicator is slidably installed in the groove at the front of the first fixing clamp 304, and the dial indicator is fixed by the third positioning screw 303.

[0032] In this second embodiment, based on the first embodiment, the counterweight 104 can be replaced by concrete bricks from the construction site. The concrete bricks are pressed onto the side support plate 101 for fixation, eliminating the need for the counterweight 104 and reducing the purchase cost of the counterweight 104.

[0033] The working principle of this embodiment is as follows: The lower fixed base 1 and the ground base of the single beam static load test are attached together. The side support plate 101 changes from being attached to the outside of the lower fixed base 1 to a vertical angle state. The counterweight 104 is placed on the upper connecting frame 102. The lower fixed base 1 forms a self-stabilizing structure without external assistance by placing the counterweight 104 on the upper connecting frame 102, which enhances the stability of the lower fixed base 1. Compared with the traditional gauge base that relies on external fixing methods such as magnetic attraction and clamping, it avoids the risk of fixing failure caused by environmental factors such as non-magnetic materials and insufficient surface roughness. It ensures that the position of the first fixing clamp 304 and the dial gauge will not be displaced due to the vibration caused by the placement of the test load during the test load change.

[0034] The first connecting rod 2 adjusts its angle by rotating the first connecting pivot 201. The first positioning screw 103 tightens against the first connecting pivot 201 to fix the angle of the first connecting rod 2. The first connecting rod 2 and the first telescopic connecting rod 202 extend and retract together, with the first positioning screw 103 tightening against the first telescopic connecting rod 202 to fix their positions. The first connecting rod 2 and the first telescopic connecting rod 202 adjust their lengths by extending and retracting. The second positioning screw 203 tightens against the first telescopic connecting rod 202 to fix its position. The second connecting rod 3 rotates along the first connecting pivot 201 at the head end of the first telescopic connecting rod 202 to adjust its angle. The third positioning screw 303 at the tail end of the second connecting rod 3 tightens against the first connecting pivot 201 to fix its angle. The second connecting rod 3 and the second telescopic connecting rod 301 extend and retract together, adjusting their lengths by extending and retracting. The third positioning screw... Screw 303 is tightened against the second telescopic connecting rod 301 to fix its position. The first fixing clamp 304 rotates along the first connecting column 201 at the head end of the second telescopic connecting rod 301 to adjust its angle. The third positioning screw 303 at the tail end of the first fixing clamp 304 is tightened against the first connecting column 201 to fix its angle. The dial indicator is slid-inserted into the groove at the front of the first fixing clamp 304. The dial indicator is fixed by the third positioning screw 303. By adjusting the angle and length, it is ensured that the dial indicator held by the first fixing clamp 304 can fit against the part of the beam to be measured. The lower fixing base 1 is located at both ends of the base to measure the middle part of the beam. The lower fixing base 1 and the base are kept synchronous. The lower fixing base 1 settles with the base, which avoids the settlement of the bases at both ends of the beam caused by the static load test of the single beam. The lower fixing base 1 in the middle of the beam is fixed alone and will not settle synchronously with the base, which would increase the data error.

[0035] The following points should be noted in this article:

[0036] 1. The accompanying drawings of the embodiments disclosed herein only involve structures relevant to the embodiments disclosed herein; other structures may refer to general designs.

[0037] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0038] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A dial gauge holder for a single-beam static load test, comprising: The lower fixed base (1), the first connecting rod (2), and the second connecting rod (3) are characterized in that the first connecting rod (2) is provided above the lower fixed base (1), the second connecting rod (3) is provided on one side of the first end of the first connecting rod (2), the two sides of the lower fixed base (1) are symmetrically provided with rotating side support plates (101), the top of the lower fixed base (1) is fixedly provided with an upper connecting frame (102), the middle part of the upper connecting frame (102) is screwed with a first positioning screw (103), and the top of the upper connecting frame (102) is stacked with a counterweight (104).

2. The dial gauge holder for a single-beam static load test according to claim 1, characterized in that, The tail end of the first connecting rod (2) is fixedly connected to a first connecting pivot (201), the head end of the first connecting rod (2) is slidably connected to a first telescopic connecting rod (202), and the head end of the first connecting rod (2) is screwed with a second positioning screw (203).

3. The dial gauge holder for a single-beam static load test according to claim 2, characterized in that, The bottom surface of the side support plate (101) and the bottom surface of the lower fixed base (1) are flush. The upper connecting frame (102) and the first connecting column (201) are rotatably connected. The head end of the first positioning screw (103) and the first connecting column (201) are tightly abutted together.

4. The dial gauge holder for a single-beam static load test according to claim 3, characterized in that, The first end of the second connecting rod (3) is slidably connected to the second telescopic connecting rod (301), the first end of the second telescopic connecting rod (301) is fixedly connected to the second connecting rotating post (302), the second connecting rotating post (302) is fixedly connected to the first fixing clamp (304), and the front and rear ends of the first fixing clamp (304) are screwed with the third positioning screw (303).

5. A dial indicator holder for a single-beam static load test according to claim 4, characterized in that, The first telescopic connecting rod (202) is fixedly connected to the first connecting pivot (201) at its head end. The first connecting pivot (201) at the head end of the first telescopic connecting rod (202) is rotatably connected to the tail end of the second connecting rod (3). The third positioning screw (303) screwed to the tail end of the second connecting rod (3) is tightened and abutted against the first connecting pivot (201).

6. A dial indicator holder for a single-beam static load test according to claim 5, characterized in that, The third positioning screw (303) screwed to the first end of the second connecting rod (3) is tightened and abutted against the second telescopic connecting rod (301).

7. A dial indicator holder for a single-beam static load test according to claim 6, characterized in that, The third positioning screw (303) at the front of the first fixing clamp (304) extends through to the inside of the first fixing clamp (304), and the third positioning screw (303) at the tail of the first fixing clamp (304) abuts against the second connecting rotating post (302).

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