An auxiliary jig

Abstract

The utility model relates to underground pipe gallery construction technical field, concretely relates to a kind of auxiliary fixture. The fixture includes fixture main body, fixture main body includes the clamping plate being set along outer mould length direction, multiple clamping components are set along the length direction interval of clamping plate at clamping plate, clamping component includes the clamping rod of shape is U-shaped, and pusher;Pusher is used to cooperate with clamping rod, and clamping plate is pressed on outer mould. Can avoid the air hole or waterproof layer defect in concrete due to coiled material drooping, wrinkle or partial separation.

Description

Technical Field

[0001] This utility model relates to the field of underground utility tunnel construction technology, and more specifically, to an auxiliary clamp. Background Technology

[0002] In the construction of urban underground utility tunnels, the waterproofing performance of the sidewall structure is crucial, directly affecting the long-term durability and operational safety of the tunnel. Pre-laid reverse-adhesive waterproofing technology, as an advanced construction method, can achieve permanent bonding between the waterproofing membrane and the subsequent concrete structural layer, effectively preventing water seepage. In recent years, it has been widely used in utility tunnel sidewall waterproofing projects.

[0003] The core process of this construction method involves pre-laying a self-adhesive polymer waterproof membrane onto the inner surface of the outer formwork of the side wall, with the self-adhesive layer facing the structural wall. This is followed by rebar tying and concrete pouring. During the concrete's setting process, a chemical reaction and physical bonding occur between the membrane and the self-adhesive layer, forming a strong and irreversible bond.

[0004] However, in actual construction, a key technical challenge is how to reliably, efficiently, and smoothly fix the flexible waterproof membrane to the external formwork on the vertical facade. Traditional fixing methods, such as double-sided tape and nail fixing, have many drawbacks. For example, insecure fixing can cause the membrane to sag or fall off before pouring; stress concentration at the fixing points may damage the waterproof membrane layer; or, when the formwork is removed, the fixing parts may remain in the concrete, creating seepage channels. In addition, the external formwork is usually a large, flat surface. If the membrane is not tightly bonded to it, air bubbles or voids will seriously affect the quality of subsequent concrete pouring and the final bonding effect. Utility Model Content

[0005] This invention provides an auxiliary clamp that can overcome some or all of the defects of the prior art.

[0006] According to the present invention, an auxiliary clamp includes: a clamp body, the clamp body including a clamping plate arranged along the length direction of the outer mold, a plurality of clamping components arranged at intervals along the length direction of the clamping plate, the clamping components including a U-shaped clamping rod and a pushing member; the pushing member is used to cooperate with the clamping rod to press the clamping plate onto the outer mold.

[0007] With this invention, when installing waterproof membrane, construction workers first lower the waterproof membrane from the top of the template, covering the inner side of the template. Then, a clamping plate is pressed onto the top of the template, pre-fixing one end of the waterproof membrane. Next, the workers clamp the clamping rod onto the template and the clamping plate. After the clamping rod is fixed, the workers rotate the threaded rod, which extends along the threaded through-hole on the clamping rod towards the template until one end of the threaded rod presses against the template. This presses the clamping rod against the clamping plate, securing the upper end of the waterproof membrane and preventing it from falling off during construction. After the concrete is poured, the workers simply rotate the threaded rod in the opposite direction, contacting the clamping rod's pressure on the clamping plate. The clamping plate can then be removed, detaching it from the template and the waterproof membrane. Compared to existing technologies, this clamp is easier to remove, saves time, and does not damage the template during installation and removal.

[0008] Preferably, a threaded through hole is provided on the side wall of one end of the clamping rod, and the pushing component includes a threaded rod passing through the threaded through hole; a mounting post is provided at one end of the threaded rod, and a limiting through hole is provided on the side wall of the mounting post; a hand-held rod is provided at the positioning through hole.

[0009] With this invention, construction workers hold a hand-held rod and then rotate the hand-held rod. The rotation of the hand-held rod causes the threaded rod to pass through the threaded through hole, thereby making the threaded rod press against or loosen the template, which makes it convenient for construction workers to fix or loosen the clamping plate.

[0010] Preferably, the end of the threaded rod away from the mounting post is provided with a circular plate.

[0011] This invention increases the contact area between the circular plate and the template, preventing excessive pressure and damage to the template due to insufficient force area when the front end of the threaded rod presses against the template.

[0012] Preferably, the clamping plate has an L-shaped cross-section.

[0013] With this invention, since the clamping plate has an L-shaped cross-section, construction workers can first press the clamping plate onto the waterproof membrane and clamp it at the top edge of the template to pre-fix the waterproof membrane, making it convenient for construction workers to clamp the clamping rod onto the clamping plate later.

[0014] Preferably, the side wall of the clamping plate is provided with a plurality of limiting components spaced apart along the length of the clamping plate. The limiting components include two parallel limiting plates, which together with the clamping plate form a limiting range for one end of the clamping rod to extend into.

[0015] With this invention, when construction workers clamp the clamping rod onto the clamping plate, they first insert one end of the clamping rod into the limiting area on the clamping plate to pre-fix the clamping rod through the limiting area. Then, they rotate the threaded rod to make it press against the template. The limiting area prevents the clamping rod from moving or becoming misaligned due to template vibration when pouring concrete inside the template. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the fixture body in Example 1.

[0017] Figure 2 This is a schematic diagram of the clamping component in Example 1.

[0018] Figure 3 This is an exploded view of the clamping component in Example 1.

[0019] Figure 4 This is a schematic diagram of the clamping plate in Example 1. Detailed Implementation

[0020] To further understand the content of this utility model, a detailed description of the utility model is provided in conjunction with the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the utility model.

[0021] Example 1 like Figures 1-4 As shown, this embodiment provides an auxiliary fixture, including a fixture body 1300. The fixture body 1300 includes a clamping plate 1301 arranged along the length direction of the outer mold. The clamping plate 1301 is provided with a plurality of clamping components 1302 arranged at intervals along the length direction of the clamping plate 1301. The clamping component 1302 includes a U-shaped clamping rod 1403 and a pushing member. The pushing member is used to cooperate with the clamping rod 1403 to press the clamping plate 1301 onto the outer mold.

[0022] In this embodiment, when installing the waterproof membrane, the construction worker first lowers the waterproof membrane from the top of the template, covering the inner side of the template. Then, the clamping plate 1301 is pressed onto the top of the template, pre-fixing one end of the waterproof membrane. Next, the construction worker clamps the clamping rod 1403 onto the template and the clamping plate 1301. After the clamping rod 1403 is fixed, the construction worker rotates the threaded rod 1504. The threaded rod 1504 rotates and extends along the threaded through hole 1501 on the clamping rod 1403 towards the template until one end of the threaded rod 1504 touches the template. The clamping rod 1403 presses the clamping plate 1301 to tighten the upper end of the waterproof reverse-adhesive membrane, thus preventing the waterproof reverse-adhesive membrane from falling off during construction. At the same time, after the concrete is poured, the construction personnel only need to rotate the threaded rod 1504 in the opposite direction to contact the clamping rod 1403 pressing the clamping plate 1301. Then the construction personnel can remove the clamping plate 1301, which can detach the clamping plate 1301 from the template and the waterproof reverse-adhesive membrane. Compared with the existing technology, this clamp is easy to remove and saves time. Moreover, the installation and removal of the clamping plate 1301 will not damage the template.

[0023] In this embodiment, a threaded through hole 1501 is provided on one side wall of the clamping rod 1403, and the pushing member includes a threaded rod 1504 passing through the threaded through hole 1501; a mounting post 1503 is provided at one end of the threaded rod 1504, and a limiting through hole 1502 is provided on the side wall of the mounting post 1503; a hand-held rod 1402 passing through the limiting through hole 1502 is provided at the limiting through hole 1502.

[0024] In this embodiment, the construction worker holds the holding rod 1402 and then rotates the holding rod 1402. The rotation of the holding rod 1402 causes the threaded rod 1504 to pass through the threaded through hole 1501, thereby causing the threaded rod 1504 to press against or loosen the template, making it convenient for the construction worker to fix or loosen the clamping plate 1301.

[0025] In this embodiment, a circular plate 1404 is provided at the end of the threaded rod 1504 away from the mounting post 1503.

[0026] In this embodiment, the circular plate 1404 contacts the template, increasing the contact area between the threaded rod 1504 and the template. This prevents the template from being damaged due to excessive pressure caused by the small force-bearing area when the front end of the threaded rod 1504 presses against the template.

[0027] In this embodiment, the clamping plate 1301 has an L-shaped cross-section.

[0028] In this embodiment, since the clamping plate 1301 has an L-shaped cross-section, when the construction personnel use the clamping plate 1301, they can first press the clamping plate 1301 onto the waterproof membrane and clamp it at the top edge of the template to pre-fix the waterproof membrane, which makes it convenient for the construction personnel to clamp the clamping rod 1403 onto the clamping plate 1301 later.

[0029] In this embodiment, a plurality of limiting components 1601 are provided on the side wall of the clamping plate 1301, which are spaced apart along the length of the clamping plate 1301. The limiting component 1601 includes two parallel limiting plates 1602. The two limiting plates 1602 and the clamping plate 1301 together form a limiting interval 1603 into which one end of the clamping rod 1403 extends.

[0030] In this embodiment, when the construction worker clamps the clamping rod 1403 onto the clamping plate 1301, he first inserts one end of the clamping rod 1403 into the limiting interval 1603 on the clamping plate 1301 to pre-fix the clamping rod 1403. Then, he rotates the threaded rod 1504 to make the threaded rod 1504 press against the template. The limiting interval 1603 prevents the clamping rod 1403 from moving or misaligning due to template vibration when pouring concrete inside the template.

[0031] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0032] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited to this. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An auxiliary clamp, characterized in that: The fixture includes a main body (1300), which includes a clamping plate (1301) arranged along the length of the outer mold. The clamping plate (1301) is provided with a plurality of clamping components (1302) spaced apart along the length of the clamping plate (1301). The clamping components (1302) include a U-shaped clamping rod (1403) and a pusher. The pusher is used to cooperate with the clamping rod (1403) to press the clamping plate (1301) onto the outer mold.

2. The auxiliary clamp according to claim 1, characterized in that: A threaded through hole (1501) is provided on one side wall of the clamping rod (1403), and the pushing component includes a threaded rod (1504) passing through the threaded through hole (1501); a mounting post (1503) is provided on one end of the threaded rod (1504), and a limiting through hole (1502) is provided on the side wall of the mounting post (1503) to pass through the mounting post (1503); a hand-held rod (1402) is provided at the limiting through hole (1502) to pass through the limiting through hole (1502).

3. The auxiliary clamp according to claim 2, characterized in that: The threaded rod (1504) has a circular plate (1404) at the end away from the mounting post (1503).

4. An auxiliary clamp according to claim 3, characterized in that: The clamping plate (1301) has an L-shaped cross-section.

5. An auxiliary clamp according to claim 4, characterized in that: The side wall of the clamping plate (1301) is provided with a plurality of limiting components (1601) spaced apart along the length direction of the clamping plate (1301). The limiting components (1601) include two parallel limiting plates (1602). The two limiting plates (1602) together with the clamping plate (1301) form a limiting interval (1603) into which one end of the clamping rod (1403) extends.

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