Shaftway wall strength testing device

Abstract

The utility model discloses a hoistway wall strength test device, which relates to the field of detection equipment and comprises a test seat used for being contacted and attached with a hoistway wall to be tested; the pressure sensing unit is assembled on the test seat; the supporting seat and the testing seat are arranged in a front-back corresponding mode, and the supporting seat is used for being arranged on a fixed object; one end of the jacking and pressing mechanism penetrates through the supporting seat, and during testing, the tail end of the jacking and pressing mechanism extends into the pressure sensing unit to apply pressure to the pressure sensing unit and the testing seat so that the pressure sensing unit and the testing seat can jack and press the well wall. According to the invention, the arranged jacking mechanism is matched with the supporting seat to gradually feed and apply pressure to the testing seat attached to the well wall until the applied pressure reaches 1000N, and the well wall is independently tested, so that the deformation quantity of the well wall is kept unique, and the detection precision of the well wall is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of detection equipment, especially elevator shaft wall strength test device. BACKGROUND

[0002] The elevator shaft wall is a structure used to separate the elevator shaft from other places, ensuring the closure and stability of the elevator shaft. It is an important component of the elevator shaft, and is crucial for the safe operation of the elevator and the safety of passengers.

[0003] According to GB / T7588.1-2020 5.2.1.8.3, the elevator shaft wall should have the following mechanical strength. When the elevator shaft wall is made of glass material, both flat and shaped glass panels should use laminated glass. The glass and its accessories should be able to withstand a static force of 1000N perpendicularly acting on any position from the outside and inside of the shaft, and evenly distributed on a 0.09m 2 square (or square) area.

[0004] The prior art patent CN219201170U discloses an elevator shaft wall strength detection device, which comprises an electric push rod, a splicing rod, a distance adjusting assembly, a pressure sensor and a supporting foot. The push rod of the electric push rod is arranged to the right. The right end of the push rod is provided with a first threaded hole. The left side of the electric push rod is provided with a first threaded column. The splicing rod is divided into a left splicing rod and a right splicing rod. The right end of the splicing rod is provided with a second threaded hole, and the left end is provided with a second threaded column. The pressure sensor is divided into a left pressure sensor and a right pressure sensor. The supporting foot is divided into a left supporting foot and a right supporting foot. The left pressure sensor is fixed on the left side of the first threaded column through at least one left splicing rod. The left supporting foot is fixed on the left side of the left pressure sensor. The right side of the push rod is connected with at least one right splicing rod. The right pressure sensor is connected to the right end of the rightmost right splicing rod through the distance adjusting assembly. The right supporting foot is fixed on the right side of the right pressure sensor.

[0005] However, the patent has the following problems in actual use:

[0006] 1. The relative elevator shaft wall is used as a supporting point, and the electric push rod and the splicing rod are used to press the elevator shaft wall on both sides at the same time. However, the strength of the two elevator shaft walls may differ, causing the elevator shaft wall on one side to be excessively stressed and seriously deformed, while the elevator shaft wall on the other side is less stressed and not deformed, affecting the detection accuracy of the elevator shaft wall.

[0007] 2. The deformation amount and the deformed state after detection of the elevator shaft wall cannot be directly observed. UTILITY MODEL CONTENTS

[0008] In order to overcome the above-mentioned defects of the prior art, the utility model provides an elevator shaft wall strength test device to solve the problems existing in the above-mentioned background technology.

[0009] The utility model provides the following technical scheme: shaft wall strength test device, include,

[0010] Test seat is used for contact and fit with the shaft wall of to be tested,

[0011] Pressure sensing unit is assembled on test seat,

[0012] Supporting seat is set up corresponding to test seat before and after, and supporting seat is used for setting on fixed object,

[0013] Top pressure mechanism, one end passes through supporting seat, when testing, top pressure mechanism end extends to the inside of pressure sensing unit, and the pressure caused to pressure sensing unit, test seat makes it top pressure shaft wall.

[0014] Beneficial effect: utilize the top pressure mechanism of setting and gradually feed the test seat that fits on the shaft wall with supporting seat and press, until the pressure applied reaches 1000N, can carry out single test test to shaft wall, make the deformation of shaft wall keep only, improve the detection precision of shaft wall.

[0015] Preferably, the rear end of the supporting seat is provided with a reinforcing sleeve, and a scale is sleeved on the top pressure mechanism, in the initial state, one end of the scale extends above the reinforcing sleeve.

[0016] Through the above technical means, the reinforcing sleeve effectively supports the top pressure mechanism, improves the stability of the top pressure mechanism during feeding, and the feeding length of the top pressure mechanism is observed by using the scale, the value of the deformation of the shaft wall can be directly observed, and when the pressure between the top pressure mechanism and the pressure sensing unit is 0 after testing, the change of one end of the scale in the initial position and the reset position of the reinforcing sleeve is compared, so that whether the shaft wall is deformed can be directly observed.

[0017] Preferably, the top pressure mechanism is a screw rod, and the screw rod is threadedly connected with the supporting seat.

[0018] Preferably, the front end of the screw rod slidingly assembled has a torque wrench, and the torque wrench and the screw rod form a T-shaped or L-shaped state.

[0019] Through the above technical means, the torque wrench can be drawn to the middle of the screw rod to form a T-shaped structure with the screw rod, or the torque wrench can be drawn to one end of the screw rod to form an L-shaped structure with the screw rod, and single-handed or double-handed locking can be realized to realize single-handed and double-handed switching operation.

[0020] Preferably, the upper and lower ends of the supporting seat are slidingly inserted with adjusting supports, one end of the adjusting support is inserted and connected with a butterfly bolt threadedly connected with the supporting seat.

[0021] By the above technical means, the hooking of the adjusting support on the fixed object is adjusted, the other end is fastened with the threaded hole arranged on the support base by the butterfly bolt, thereby the test device is used according to the fixed objects with different sizes, and the practicability of the test device is improved.

[0022] Preferably, the front end of the support base is provided with a long through slot, the back of the support base is provided with a plurality of threaded holes matched with the butterfly bolt from top to bottom, and one end of the adjusting support is inserted into the long through slot and fixed by the butterfly bolt.

[0023] Preferably, the middle part of the support base is welded with a screw nut matched with a screw rod, the front end of the long through slot is provided with an opening, the screw nut is correspondingly arranged in front of and behind the opening, and the threaded hole is designed side by side with the screw nut.

[0024] Preferably, the adjusting support is in an inverted J-shaped structure and is used for being hung on the roof guardrail, and the two adjusting supports are matched to fix the support base on the roof guardrail.

[0025] Preferably, the test base is in a square or circular structure. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0027] Figure 2 It is a side view structure schematic view of one of the embodiments of the utility model.

[0028] Figure 3 It is a side view structure schematic view of another embodiment of the utility model.

[0029] Figure 4 It is an explosion structure schematic view of the utility model.

[0030] Figure 5 It is a support base structure schematic view of the utility model.

[0031] Figure 6 It is a screw rod and torque wrench assembly structure schematic view of the utility model.

[0032] The figure signs are: 1, test base; 2, pressure sensing unit; 3, support base; 31, screw nut; 32, long through slot; 33, threaded hole; 4, reinforcing sleeve; 5, screw rod; 51, clamping groove; 52, fixing bolt; 6, scale; 7, adjusting support; 71, butterfly bolt; 8, torque wrench; 81, straight slot; 9, pneumatic rod. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0034] This utility model provides a device for testing the strength of well walls.

[0035] Example 1, such as Figures 1-2 As shown, the system includes: a test base 1, a pressure-sensing unit 2, a support base 3, and a screw 5. The test base 1 is a square structure used to contact and adhere to the well wall to be tested. It can be attached to the well wall using tape or glue. The pressure-sensing unit 2 is inserted into the test base 1 and contains a pressure sensor. An external display is connected to the pressure sensor. The pressure applied to the sensor is used to monitor the pressure value applied to the well wall in real time. The pressure sensor is selected with a load capacity of over 1000N. The measured value can be directly read from the display, and the reading results are simple and clear. The support base 3 is detachably installed on the car top guardrail and is positioned correspondingly to the front and rear of the test base 1. Adjustable brackets 7 are slidably inserted at both the upper and lower ends of the device. One end of the adjustable bracket 7 is threaded with a wing bolt that is assembled with the support base 3. The support base 3 is hung on the car top guardrail by the two adjustable brackets 7. The distance between the two adjustable brackets 7 inserted into the support base 3 can be changed according to the interval between the guardrails, so as to use it according to different sizes of guardrails and improve the practicality of the test device. The screw 5 is threaded in the middle of the support base 3 and its end extends into the pressure sensing unit 2. The screw 5 is selected with a size of 300-700mm, which is adaptively selected according to the size of the test well. During the test, the screw 5 is continuously fed to put pressure on the pressure sensing unit 2 and the test base, causing it to press against the well wall.

[0036] In this embodiment, as Figure 4 As shown, the front end of the support base 3 is provided with a long through groove 32, and the back of the support base 3 is provided with multiple threaded holes 33 that are compatible with the wing bolts 71 from top to bottom. One end of the adjusting bracket 7 is inserted into the long through groove 32 and fixed by the wing bolts.

[0037] In this embodiment, as Figure 4 As shown, the middle part of the support base 3 is welded with a screw nut 31 that is compatible with the screw 5. The front end of the long through groove 32 is provided with an opening. The screw nut 31 corresponds to the opening. The threaded hole 33 is designed side by side with the screw nut 31.

[0038] In this embodiment, as Figure 3As shown, the adjusting support 7 is in an inverted "J" shape structure for hanging on the roof guardrail, two adjusting supports 7 cooperate to fix the support seat 3 on the roof guardrail, the hook-shaped structure of the adjusting support 7 is hung on the guardrail, the other end is fastened with the threaded hole 31 of the support seat 3 by means of the butterfly bolt 71, and thus the test device is used according to different sizes of the guardrail, and the practicability of the test device is improved.

[0039] In the embodiment, as shown in the figure, Figure 3 As shown, the pressure sensing unit 2 is provided with a counterbore matched with the screw rod 5, so that the screw rod 5 is accurately butted with the pressure sensing unit 2, and uniform pressure is applied to the test seat 1.

[0040] In the embodiment, the screw rod 5 is replaced by a pneumatic rod 9, the pneumatic rod 9 is assembled on one side of the support seat 3, and the piston rod thereof penetrates through the support seat 3 and is non-rigidly connected with the pressure sensing unit, the support seat 3 can be inserted into the ground or a base or other fixed objects for assembly, so that the device can be placed outside the shaft wall, and the outside of the shaft wall is detected.

[0041] In the embodiment, the main difference from the embodiment 1 is that an enhanced sleeve 4 is welded at the rear end of the support seat 3, when the screw rod 5 is connected with the support seat 3, one end of the screw rod 5 extends into the inside of the enhanced sleeve 4, so that the enhanced sleeve 4 effectively supports the screw rod 5, improves the stability of the screw rod 5 during feeding, prevents the screw rod 5 from tilting, causes the contact point of the screw rod 5 with the pressure sensing unit 2 to deviate, and reduces the detection accuracy, and a scale is installed on the screw rod 5, in the initial state, one end of the scale 6 extends above the enhanced sleeve 4, the screw rod 5 continuously feeds to make one end of the scale 6 away from the enhanced sleeve 4, the initial scale of the scale 6 and the scale at the end of the test when 1000N is applied are recorded, so that the position change of the sleeve and the scale is observed, the changed value is read, the elastic deformation value is obtained, and the permanent deformation data is read after the applied force value is 0N.

[0042] In the embodiment, the main difference from the embodiment 1 is that a clamping groove 51 is formed at the front end of the screw rod 5, a fixing bolt 52 is inserted into the clamping groove 51, a torque wrench 8 is clamped at the clamping groove 51, a straight slot 81 is formed at the top of the torque wrench 8, the fixing bolt 52 is slidably connected with the straight slot 81 when the torque wrench 8 is inserted into the clamping groove 51, the torque wrench 8 can be equally divided to the two sides during use, and the torque wrench 8 is locked by two hands, when the torque wrench 8 is tightened, the torque wrench 8 is divided to one side by using the lever principle, and the torque wrench 8 is locked by one hand or two hands, so that the one-handed and two-handed switching operations are realized.

[0043] In the embodiment, the main difference from the embodiment 1 is that the test base 1 is in a circular structure.

[0044] The utility model discloses a working principle: install the pressure sensing unit 2 in the installation groove on the test seat 1, assemble the support seat 1 with the adjusting support 7, and lock in the top rail or other fixed force place, install the screw rod 5 on the nut hole on the support seat 1, install the scale 6 on the other side, top the pressure sensing unit 2 and the base on the shaft wall through the screw rod 5, exert 1000N pressure to the screw rod 5 after the torsion torque wrench 8 is twisted and makes the screw rod 5 top the pressure sensing unit 2, read the data before and after exerting force on the scale 6 to determine the elastic deformation data, and the permanent deformation data after exerting force zero.

[0045] It should be noted that: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0046] The above only describes the preferred embodiments of the utility model, and the protection scope of the utility model is not limited to the above-mentioned embodiments, and any equivalent modification or change made by the ordinary skilled in the art according to the disclosed content of the utility model should be included in the protection scope recorded in the claims.

Claims

1. A wellbore wall strength testing device, characterized in that, include: Test base (1) is used to contact and fit against the well wall to be tested; Pressure-sensitive unit (2) is mounted on the test base (1); Support base (3) is set in front and back corresponding to the test base. Support base (3) is used to be set on a fixed object; The top pressure mechanism has one end passing through the support base (3). During the test, the end of the top pressure mechanism extends to the pressure sensing unit (2) and puts pressure on the pressure sensing unit (2) and the test base (1) to press against the well wall.

2. The wellbore wall strength testing device according to claim 1, characterized in that: The rear end of the support base (3) is provided with a reinforcing sleeve (4), and a scale (6) is sleeved on the pressing mechanism. In the initial state, one end of the scale (6) extends above the reinforcing sleeve (4).

3. The wellbore wall strength testing device according to claim 2, characterized in that: The pressing mechanism is a screw (5), which is threadedly connected to the support base (3).

4. The wellbore wall strength testing device according to claim 3, characterized in that: A torque wrench (8) is slidably mounted on the front end of the screw (5), and the torque wrench (8) and the screw (5) form a T-shape or L-shape.

5. The wellbore wall strength testing device according to claim 1, characterized in that: The upper and lower ends of the support base (3) are slidably connected with adjustment brackets (7), and one end of the adjustment bracket (7) is connected with a wing bolt (71) threadedly connected to the support base (3).

6. The wellbore wall strength testing device according to claim 5, characterized in that: The front end of the support base (3) is provided with a long through groove (32), and the back of the support base (3) is provided with multiple threaded holes (33) that are compatible with the wing bolts (71) from top to bottom. One end of the adjusting bracket (7) is inserted into the long through groove (32) and fixed by the wing bolts.

7. The wellbore wall strength testing device according to claim 6, characterized in that: The middle part of the support base (3) is welded with a screw nut (31) that is compatible with the screw (5). The front end of the long through groove (32) is provided with an opening. The screw nut (31) is corresponding to the opening. The threaded hole (33) is designed side by side with the screw nut (31).

8. The wellbore wall strength testing device according to claim 6, characterized in that: The adjusting bracket (7) has an inverted "J" shape and is used to hang on the car top guardrail. The two adjusting brackets (7) work together to fix the support seat (3) on the car top guardrail.

9. The wellbore wall strength testing device according to claim 1, characterized in that: The test base (1) is a square or circular structure.

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