Small-range drawing instrument for drawing self-tapping screw of glass curtain wall keel

Abstract

The utility model discloses a small-range drawing instrument for drawing a self-tapping screw of a glass curtain wall keel. The small-range drawing instrument comprises a rotary shell, a pull rod, a tension sensor, a clamp, a sleeve and a tension seat, two ends of the rotary shell are communicated to form sliding cavities; the pull rod, the tension sensor and the clamp are coaxially and sequentially fixed to form a tension shaft which is slidably connected in the sliding cavity; the clamping end of the clamp can be clamped with the self-tapping screw; one end of the sleeve is rotationally connected with the inner wall of the rotary shell, and the other end of the sleeve can abut against a glass curtain wall keel; the outer wall of the tension base is in threaded connection with the inner wall of the end, away from the sleeve, of the rotary shell. The tension base is sleeved with the pull rod and can be screwed into or out of the sliding cavity along with rotation of the rotary shell to pull the tension shaft. The pull-out test device can realize safe, accurate and efficient pull-out test of the self-tapping screws on the glass curtain wall keel, and is small and exquisite in structure and convenient to assemble and carry.

Description

Technical Field

[0001] This utility model relates to the field of building engineering testing technology, and more specifically to a small-range pull-out instrument for pulling out self-tapping screws of glass curtain wall keel. Background Technology

[0002] A pull-out tester is a device used to test the tensile strength of materials or structures, and it is widely used in fields such as construction engineering and materials testing.

[0003] Currently, most pull-out testers used in construction engineering are hydraulic through-type pull-out testers with a minimum range of 10t. Existing pull-out testers generally have a large range, resulting in low accuracy when used for pulling out self-tapping screws on curtain wall keels. Furthermore, their installation method can damage the curtain wall glass, making them unsuitable for pull-out tests of self-tapping screws on curtain wall keels.

[0004] Therefore, how to provide a small-range pull-out tester that can be used for pull-out testing of the anchoring force of self-tapping screws and curtain wall keel connections is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a small-range pull-out instrument for pulling out self-tapping screws on glass curtain wall keels, which can safely, accurately and efficiently perform pull-out tests on self-tapping screws on glass curtain wall keels.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A small-range pull-out device for pulling out self-tapping screws of glass curtain wall keel includes a rotating housing, a pull rod, a tension sensor, a clamp assembly, a sleeve, and a tension seat;

[0008] The rotating housing has two through-holes forming a sliding cavity; the pull rod, tension sensor, and clamp assembly are coaxially fixed to form a tension shaft and slidably connected within the sliding cavity; the clamping end of the clamp assembly can be engaged with a self-tapping screw;

[0009] The sleeve is fitted on the outside of the clamp assembly, with one end rotatably connected to the inner wall of the rotating housing and the other end abutting against the glass curtain wall keel; the outer wall of the tension seat is threadedly connected to the inner wall of the rotating housing at the end away from the sleeve, and the tension seat is fitted with the tension rod and can rotate in or out of the sliding cavity as the rotating housing rotates to pull the tension shaft.

[0010] The beneficial effects of this utility model are that, by clamping the self-tapping screw with the clamping assembly, when the rotating shell rotates, it will drive the tension seat to rotate out of the sliding cavity. During the rotation of the tension seat, it will pull the tension shaft. The tension sensor will provide feedback on the magnitude of the tension, thereby enabling the testing of the pull-out force of the self-tapping screw and meeting the requirements of the pull-out test of self-tapping screws on glass curtain wall keel. During the test, the sleeve can be supported on the glass curtain wall keel to ensure that the test is carried out efficiently and realistically, and to ensure the accuracy of the pull-out force test of the self-tapping screw.

[0011] Preferably, the clamp assembly includes a connector, an adapter, and a clamping component; the connector, adapter, and clamping component are connected sequentially, the connector is fixed to one end of the tension sensor, and the side wall of the clamping component has an anchoring groove to engage with the cap end of the self-tapping screw. The connector, adapter, and clamping component are all independent parts; by replacing different types of clamping components, pull-out tests of self-tapping screws of different specifications and models can be performed.

[0012] Preferably, the connector includes a block and a screw, and one end of the adapter has an assembly cavity; one end face of the block is fixed to one end of the tension sensor, and one end of the screw is vertically fixed to the other end face of the block; the adapter has an internal thread that engages with the screw on the inner wall of the assembly cavity. The connector and the adapter are fitted together by the screw and the internal thread, making installation and disassembly convenient.

[0013] Preferably, the depth of the assembly cavity is greater than the length of the screw. This greater depth allows for adjustment of the adapter, facilitating the adjustment of the clamping component's position.

[0014] Preferably, the end of the adapter away from the assembly cavity is fixed to one end of the clamping member, and the end of the clamping member away from the adapter is provided with the anchoring groove. The clamping member can engage the cap end of the self-tapping screw through the anchoring groove on its side wall, which is ingenious and meets the requirements of the pull-out test of the self-tapping screw.

[0015] Preferably, the inner wall of the rotating housing away from the sleeve is threaded, the tension seat is a hollow cylindrical structure with an external thread on its outer wall that engages with the thread; the pull rod is a hexagonal prism, and the tension seat has a slot at the end facing the tension sensor. One end of the pull rod passes through the slot into the tension seat, and the rod wall is engaged and fixed with the slot. The tension seat is threadedly connected to the rotating housing. When the rotating housing is rotated, the tension seat can be unscrewed from the sliding cavity. The tension seat is engaged with the pull rod through the slot. When an external force is applied to the rotating housing, the engagement and fixation between the tension seat and the pull rod prevents the tension seat and the rotating housing from rotating synchronously.

[0016] Preferably, a limiting nut is fixed to the end of the pull rod away from the tension sensor; a spring is sleeved on the wall of the pull rod, and the two ends of the spring abut against the limiting nut and the inner wall of the tension seat relative to the bayonet, respectively. The spring enables slow and uniform loading during the test, thereby improving the accuracy of the test. In addition, it can reduce the resistance when rotating the outer shell, improving operability.

[0017] Preferably, a display screen is fixed to the outer wall of the rotating housing, and the display screen is communicatively connected to the tension sensor. The display screen can directly display the vertical tension of the tension sensor, making the pull-out force test of the self-tapping screw more intuitive.

[0018] Preferably, the inner wall of the rotating housing at the end away from the tension seat has a slot, and the outer wall of one end of the sleeve has a buckle that engages with the slot. The buckle rotatably abuts against the wall of the slot. The engagement method between the sleeve and the rotating housing facilitates easy installation and removal.

[0019] Preferably, it also includes a force-applying component, which has a through hole and is fixed to the outer wall of the tension seat at the end away from the sleeve. The force-applying component rotates and abuts against the outer wall of the tension seat relative to the inner wall of the through hole. A tool can be used to apply rotational force to the rotating housing through the force-applying component, improving the operability of the pull-out instrument.

[0020] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a small-range pull-out instrument for pulling out self-tapping screws on glass curtain wall keels, which can realize safe, accurate and efficient pull-out tests on self-tapping screws on glass curtain wall keels. It has a compact structure and is easy to assemble and carry. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of the pull-out apparatus provided by this utility model;

[0023] Figure 2 A cross-sectional view of the fixture provided by this utility model;

[0024] Figure 3 A cross-sectional view of the tension seat provided by this utility model.

[0025] in,

[0026] 1-Rotating outer casing;

[0027] 2- Tension sensor;

[0028] 3-Connector; 31-Screw; 32-Block;

[0029] 4-Sleeve;

[0030] 5-Adapter; 51-Assembly cavity;

[0031] 6-Clamping component; 61-Anchoring groove;

[0032] 7-Pull rod;

[0033] 8-Tension seat; 81-Spring;

[0034] 9-Force-applying component. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] This utility model embodiment discloses a small-range pull-out instrument for pulling out self-tapping screws of glass curtain wall keel, including a rotating shell 1, a pull rod 7, a tension sensor 2, a clamp assembly, a sleeve 4, and a tension seat 8;

[0037] The rotating outer shell 1 has two through-holes to form a sliding cavity; the pull rod 7, the tension sensor 2, and the clamping assembly are fixed coaxially to form a tension shaft and are slidably connected in the sliding cavity; the clamping end of the clamping assembly can be snapped with a self-tapping screw;

[0038] The sleeve 4 is fitted on the outside of the clamp assembly. One end of the sleeve is rotatably connected to the inner wall of the rotating housing 1, and the other end can abut against the glass curtain wall keel. The outer wall of the tension seat 8 is threadedly connected to the inner wall of the rotating housing 1 at the end away from the sleeve 4. The tension seat 8 is fitted with the pull rod 7 and can be screwed into or out of the sliding cavity as the rotating housing 1 rotates to pull the tension shaft.

[0039] like Figure 1 As shown, the pull rod and clamp assembly are fixed at both ends of the tension sensor. The clamp assembly can hold the self-tapping screw, and the sleeve can be supported on the glass curtain wall keel so that the tension axis is coaxial with the self-tapping screw. By rotating the outer shell, the tension seat rotates out of the sliding cavity. During the rotation process, the tension seat will pull the tension axis, thereby realizing the pull test of the self-tapping screw.

[0040] In this embodiment, the clamp assembly includes a connector 3, an adapter 5, and a clamping member 6; the connector 3, the adapter 5, and the clamping member 6 are connected in sequence, the connector 3 is fixed to one end of the tension sensor 2, and the side wall of the clamping member 6 is provided with an anchoring groove 61 to engage with the cap end of the self-tapping screw.

[0041] In other specific embodiments, in order to better realize the assembly between the connector and the adapter, the connector 3 includes a block 32 and a screw 31, and one end of the adapter 5 is provided with an assembly cavity 51; one end face of the block 32 is fixed to one end of the tension sensor 2, and one end of the screw 31 is vertically fixed to the other end face of the block 32; the adapter 5 is provided with an internal thread that engages with the screw 31 on the inner wall of the assembly cavity 51.

[0042] To further optimize the above technical solution, the depth of the assembly cavity 51 is greater than the length of the screw 31. The screw has a certain amount of adjustment within the assembly cavity. By adjusting the length of the screw within the assembly cavity, the position of the adapter can be adjusted, allowing for better pull-out testing of the self-tapping screws based on the actual on-site construction environment.

[0043] In some other embodiments, the end of the adapter 5 away from the assembly cavity 51 is fixed to one end of the clamping member 6, and the end of the clamping member 6 away from the adapter 5 is provided with an anchoring groove 61. Since the self-tapping screw is nailed to the curtain wall keel, the head end of the self-tapping screw can be inserted from one side through the anchoring groove on the side wall of the clamping member.

[0044] In this embodiment, a slot is formed on the inner wall of the rotating outer shell 1 at the end away from the tension seat 8, and a buckle is formed on the outer wall of one end of the sleeve 4 to engage with the slot. The buckle rotates and abuts against the groove wall of the slot. The sleeve can be installed more effectively by means of a snap-fit ​​connection.

[0045] like Figure 2 As shown, one end of the sleeve is open, and the other end is closed. A circular hole is provided at the closed end of the sleeve. The connecting block is cylindrical, passing through the circular hole, and its outer wall slides against the wall of the hole in the sleeve. During the test, the rotating outer shell rotates, and the sleeve abuts against the curtain wall keel. The sleeve does not rotate with the rotating outer shell, providing better support for the test and ensuring that the tension axis is coaxial with the self-tapping screw, thus guaranteeing the accuracy of the test results.

[0046] To further optimize the above technical solution, an opening is formed on the outer wall of the end of the sleeve away from the rotating housing. This opening corresponds to the anchoring groove, facilitating the clamping component's engagement of the self-tapping screw. Simultaneously, the bayonet also facilitates the assembly of the connector, adapter, and clamping component.

[0047] To further optimize the above technical solution, the adapter and clamping parts can also be designed separately and connected by bolts. With the separate design, only different models of clamping parts need to be replaced to meet the pull-out test requirements of different types of anchor bolts.

[0048] In some other specific embodiments, the inner wall of the rotating housing 1 away from the sleeve 4 is provided with threads, the tension seat 8 is a hollow columnar structure, and its outer wall is provided with external threads that engage with the threads; the pull rod 7 is a hexagonal prism, and the tension seat 8 has a bayonet at the end facing the tension sensor 2, and one end of the pull rod 7 passes through the bayonet through the tension seat 8, and the rod wall of the pull rod 7 is engaged and fixed with the bayonet.

[0049] When the rotating housing rotates, the tension seat unscrews out of the sliding cavity. The tension seat is then fixed to the pull rod via a bayonet. The integrated structure formed by the tension seat, pull rod, tension sensor, and clamp assembly is engaged with the self-tapping screw. Therefore, when the rotating housing rotates, the tension seat does not rotate synchronously with the rotating housing. Instead, when the rotating housing rotates, the tension seat unscrews out of the sliding cavity of the rotating housing, causing the self-tapping screw to generate a pull-out force. The tension sensor can provide feedback on the magnitude of the pull-out force, thus completing the pull-out test of the self-tapping screw.

[0050] To further optimize the above technical solution, a limit nut 71 is fixed at the end of the pull rod 7 away from the tension sensor 2; a spring 81 is sleeved on the rod wall of the pull rod 7, and the two ends of the spring 81 abut against the inner wall of the corresponding bayonet of the limit nut 71 and the tension seat 8, respectively.

[0051] To better achieve the installation of the spring, such as Figure 3 As shown, a washer is provided between the end of the pull rod and the limit nut, and the spring is sleeved on the pull rod and located inside the tension seat. The two ends of the spring abut against the washer and the inner wall of the tension seat, respectively.

[0052] In some other specific embodiments, to achieve a visual display of the pull-out force, a display screen is fixed to the outer wall of the rotating housing 1, and the display screen is communicatively connected to the tensile sensor 2.

[0053] In some other specific embodiments, a force-applying member 9 is also included. The force-applying member 9 has a through hole and is fixed on the outer wall of the tension seat 8 at the end away from the sleeve 4. The inner wall of the force-applying member 9 relative to the through hole rotatably abuts against the outer wall of the tension seat 8.

[0054] like Figure 1 As shown, the force-applying component 9 can be a hexagonal prism structure. When it is difficult to apply rotational force to the rotating shell manually, the rotational force can be applied by turning the force-applying component with a wrench.

[0055] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0056] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A small-range pull-out apparatus for pulling out self-tapping screws in glass curtain wall keel, characterized in that, Includes a rotating housing (1), a pull rod (7), a tension sensor (2), a clamp assembly, a sleeve (4), and a tension seat (8); The rotating outer shell (1) has two through-holes to form a sliding cavity; the pull rod (7), the tension sensor (2) and the clamp assembly are fixed in sequence along the same axis to form a tension shaft and are slidably connected in the sliding cavity; the clamping end of the clamp assembly can be engaged with a self-tapping screw; The sleeve (4) is sleeved on the outside of the clamp assembly. One end of the sleeve is rotatably connected to the inner wall of the rotating housing (1), and the other end can abut against the glass curtain wall keel. The outer wall of the tension seat (8) is threadedly connected to the inner wall of the rotating housing (1) away from the sleeve (4). The tension seat (8) is sleeved on the pull rod (7) and can rotate in or out of the sliding cavity as the rotating housing (1) rotates to pull the tension shaft.

2. The small-range pull-out apparatus for self-tapping screws in glass curtain wall keel according to claim 1, characterized in that, The clamp assembly includes a connector (3), an adapter (5), and a clamping member (6); the connector (3), the adapter (5), and the clamping member (6) are connected in sequence, the connector (3) is fixed to one end of the tension sensor (2), and the side wall of the clamping member (6) is provided with an anchoring groove (61) to engage with the cap end of the self-tapping screw.

3. A small-range pull-out apparatus for self-tapping screws in glass curtain wall keel according to claim 2, characterized in that, The connector (3) includes a block (32) and a screw (31). One end of the adapter (5) is provided with an assembly cavity (51). One end face of the block (32) is fixed to one end of the tension sensor (2), and one end of the screw (31) is vertically fixed to the other end face of the block (32). The adapter (5) is provided with an internal thread that engages with the screw (31) on the inner wall of the assembly cavity (51).

4. A small-range pull-out apparatus for self-tapping screws in glass curtain wall keel according to claim 3, characterized in that, The depth of the assembly cavity (51) is greater than the length of the screw (31).

5. A small-range pull-out apparatus for pulling out self-tapping screws in glass curtain wall keel according to claim 4, characterized in that, The end of the adapter (5) away from the assembly cavity (51) is fixed to one end of the clamping member (6), and the end of the clamping member (6) away from the adapter (5) is provided with the anchoring groove (61).

6. A small-range pull-out apparatus for self-tapping screws in glass curtain wall keel according to claim 1, characterized in that, The inner wall of the rotating outer shell (1) away from the sleeve (4) is threaded. The tension seat (8) is a hollow columnar structure with an external thread on its outer wall that engages with the thread. The pull rod (7) is a hexagonal prism. The tension seat (8) has a slot at one end facing the tension sensor (2). One end of the pull rod (7) passes through the tension seat (8) through the slot. The rod wall of the pull rod (7) is engaged and fixed with the slot.

7. A small-range pull-out apparatus for self-tapping screws in glass curtain wall keel according to claim 6, characterized in that, A limit nut (71) is fixed at one end of the pull rod (7) away from the tension sensor (2); a spring (81) is sleeved on the rod wall of the pull rod (7), and the two ends of the spring (81) abut against the limit nut (71) and the inner wall of the tension seat (8) relative to the bayonet, respectively.

8. A small-range pull-out apparatus for self-tapping screws in glass curtain wall keel according to claim 1, characterized in that, The outer wall of the rotating housing (1) is fixed with a display screen, which is communicatively connected to the tension sensor (2).

9. A small-range pull-out apparatus for pulling out self-tapping screws in glass curtain wall keel according to claim 1, characterized in that, The inner wall of the rotating outer shell (1) away from the tension seat (8) is provided with a slot, and the outer wall of the sleeve (4) is provided with a buckle that engages with the slot. The buckle rotates and abuts against the groove wall of the slot.

10. A small-range pull-out apparatus for self-tapping screws in glass curtain wall keel according to claim 1, characterized in that, It also includes a force-applying component (9), which has a through hole and is fixed on the outer wall of the tension seat (8) away from the sleeve (4). The force-applying component (9) rotates and abuts against the outer wall of the tension seat (8) relative to the inner wall of the through hole.

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