Modularized reciprocating type shaking incubator

Through the modularly designed incubator, the problem of splashing in the culture cylinder during the oscillation is solved, and convenient clamping protection and observation of the culture cylinder is achieved, which improves the safety and operation convenience of the culture process.

CN120505166AInactive Publication Date: 2025-08-19苏州培英实验设备有限公司
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510456716.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-12
Publication Date
2025-08-19
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing incubator lacks protection against the culture cartridge during the oscillation process, resulting in splashing of the culture medium and culture, and the inability to easily observe and remove the culture cartridge.

Method used

A modular reciprocating oscillation incubator is designed, which includes a culture mounting bracket and a reciprocating oscillation drive member. It can clamp and protect both sides and top of the culture cylinder, and automatically release the clamping when taken out. Combined with the detection module, the observation of the culture is achieved through a microscope.

Benefits of technology

It effectively prevents the splash of culture medium and culture during the oscillation process, and facilitates the removal and replacement of the culture cylinder, while real-time observation of the culture.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120505166A_ABST
    Figure CN120505166A_ABST
Patent Text Reader

Abstract

The invention provides a modular reciprocating type shaking incubator, and relates to the field of incubators. The culture main body comprises two groups of reciprocating type shaking culture modules and two groups of detection modules; each reciprocating type shaking culture module comprises a culture mounting clamping part and a reciprocating shaking driving part; the culture mounting clamping piece comprises a mounting frame, a side clamping plate and a glass pressing plate; a containing groove is formed in the middle of the inner side of the mounting frame, the two sets of side clamping plates are arranged at the two ends of the top side of the containing groove respectively, and the glass pressing plate is arranged over the containing groove. The detection module comprises a supporting frame and an observation microscope; and the observation microscope is clamped in the chute in a sliding manner through a lens cone on the observation microscope. The culture cylinder can be clamped and protected, clamping and pressing protection of the culture cylinder can be automatically released when the culture cylinder is pulled out so that the culture cylinder can be conveniently taken out or replaced, and the problems that a culture solution and cultures are prone to splashing during culture oscillation, and the cultures cannot be observed are solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of oscillating incubators, in particular to a modular reciprocating oscillating incubator. Background Art

[0002] Incubators in the bio-agriculture field are sophisticated devices developed in response to the demands of biotechnology and agricultural research. Initially used for plant tissue culture and microbial fermentation research, they provide a controlled growth environment for organisms by simulating natural lighting, temperature, and humidity.

[0003] Currently, when a culture dish or culture tube is placed in an incubator, there is a lack of a protective structure for the culture tube. Therefore, during the oscillation of the culture tube, the culture liquid and culture inside the culture tube are easily splashed, and the culture in the culture cannot be observed. Even if the culture tube can be fixed in place, it is still troublesome to remove the culture tube. Summary of the Invention

[0004] In order to solve the problems in the background technology, the present invention provides a modular reciprocating oscillating incubator, which can clamp and protect the two sides and top of the culture cylinder, and can automatically release the clamping and pressure protection of the culture cylinder when the installation frame is pulled out, so that the culture cylinder can be removed or replaced.

[0005] The present invention provides a modular reciprocating oscillating incubator, which specifically includes: a culture body; The culture body includes two groups of reciprocating oscillating culture modules and two groups of detection modules. The two groups of culture modules are respectively arranged in the culture cavity of the culture body, and the two groups of detection modules are respectively installed on the top of the culture body. The reciprocating oscillation culture module includes a culture installation clamp and a reciprocating oscillation driving member; The reciprocating oscillating driving member includes a toothless gear and a driving plate; The drive shaft of the toothless gear is inserted downward into the cavity at the bottom of the culture chamber and is connected to the drive motor. The drive plate is slidably mounted between the two sets of inverted L-shaped clamping plates in the culture chamber. A waist-shaped hole is provided on the inner side of the drive plate, and a latching tooth is provided at the inner straight end of the waist-shaped hole and meshes with the toothless gear. When the latching tooth on the toothless gear just disengages from the latching tooth at one straight end of the inner side of the waist-shaped hole, it meshes with the latching tooth at the other straight end. The culture installation fixture includes a mounting frame, side clamps and a glass pressing plate; The mounting frame is mounted on the driving plate, and a placement slot is provided in the middle of the inner side of the mounting frame. The side clamping plates are provided in two groups and are respectively arranged at the top ends of the placement slot. The glass pressing plate is arranged just above the placement slot. The detection module includes a support frame and an observation microscope; The supports are fixed on the top side of the culture body and are located directly above the culture chamber. A slide groove is provided on the top side of the support, and the observation microscope is slidably mounted in the slide groove through the lens barrel thereon and is opposite to the transparent glass inlaid on the top of the culture chamber.

[0006] Furthermore, a handle is provided at the lower front end of the mounting frame, and a square opening is provided in the middle of the top of the mounting frame. When the mounting frame is installed on the driving plate, the square opening is opposite to the transparent glass inlaid on the top of the culture chamber.

[0007] Furthermore, T-shaped slots are provided on both sides of the top of the driving board, and the mounting frame is slidably inserted into the T-shaped slot through the T-shaped plug-in plate at its bottom, and when the rear end of the T-shaped plug-in plate at the bottom of the mounting frame contacts the rear end of the T-shaped slot, the mounting frame is in the middle position on the upper side of the driving board, and a T-shaped baffle is also inserted at the front end of the T-shaped slot, and a horizontal plate is provided on the outer end side of the T-shaped baffle, and a pin is inserted into the horizontal plate, and the pin is inserted into the pin hole at the front end of the driving board to fix the mounting frame in place.

[0008] Furthermore, the outer ends of the side splints are respectively connected to transverse guide rods, which are respectively fitted with clamping springs and pass through the mounting frame to be connected to a U-shaped positioning frame A with an inverted U-shaped structure. The U-shaped positioning frame A is respectively fitted on the first adjusting rod at the lower end of the inner side of the culture chamber.

[0009] Furthermore, the first adjusting rod is connected by an inclined section on the front side and a straight section on the rear side, and the inclined section of the first adjusting rod on the left side is inclined toward the left cavity wall of the culture chamber and is connected to the bottom cavity wall of the culture chamber, and the inclined section of the first adjusting rod on the right side is inclined toward the right cavity wall of the culture chamber and is connected to the bottom cavity wall of the culture chamber. When the driving plate moves to the front end of the culture chamber under the drive of the toothless gear, the U-shaped clamping frame A is installed on the front end of the straight section of the first adjusting rod.

[0010] Furthermore, the top two ends of the glass pressure plate are respectively connected to vertical guide rods, which are respectively equipped with compression springs and pass through the installation frame upward to be connected to a U-shaped positioning frame B with a lateral structure. The U-shaped positioning frame B is respectively mounted on the second adjustment rod at the upper end of the inner side of the culture chamber.

[0011] Furthermore, the second adjusting rod is connected by an inclined section on the front side and a straight section on the rear side, and the inclined section of the second adjusting rod is inclined toward the upper wall of the culture chamber and is respectively connected to the left and right walls of the culture chamber. When the driving plate moves to the front end of the culture chamber under the drive of the toothless gear, the U-shaped positioning frame B is installed on the front end of the straight section of the second adjusting rod.

[0012] The modular reciprocating oscillating incubator provided by the present invention has the following beneficial effects: The present invention can clamp and protect both sides and the top of the culture tube, and can automatically release the clamping and pressing protection of the culture tube when the installation frame is pulled out, so that the culture tube can be taken out or replaced.

[0013] In addition, by providing a culture installation clamp and a reciprocating oscillation drive, when the culture tube is placed in the placement groove, the two sides of the culture tube can be clamped and positioned under the action of the clamping spring and the side clamping plate, and pressed on the top side of the culture tube under the action of the pressure spring and the glass pressure plate, to prevent the culture liquid and culture inside the culture tube from splashing during the reciprocating oscillation process following the reciprocating oscillation drive.

[0014] In addition, by setting up a detection module, the position of the observation microscope can be adjusted by sliding, so that it is opposite to the culture tube up and down, so that the culture in the culture tube can be observed through the transparent glass, the square opening on the top side of the mounting frame and the glass pressure plate.

[0015] In addition, by providing the first adjusting rod and the second adjusting rod, when the T-shaped baffle is pulled out and the mounting frame is pulled outward by the handle, the side clamp can be pulled away from the culture tube under the action of the inclined section of the first adjusting rod and the U-shaped clamping frame A on the outside of the horizontal guide rod, and no longer clamps the two sides of the culture tube; and under the action of the inclined section of the second adjusting rod and the U-shaped clamping frame B on the outside of the vertical guide rod, the glass pressure plate is pulled upward and no longer presses on the top side of the culture tube, thereby facilitating the removal of the culture tube or the placement of a new culture tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached figure: Figure 1 A schematic diagram showing the overall structure of the present invention; Figure 2 The present invention shows Figure 1 A schematic diagram of the structure of the culture chamber in the middle group after one side is cut away and the front door is removed; Figure 3 The present invention shows Figure 2 Middle front view structural diagram; Figure 4 The present invention shows Figure 2 Schematic diagram of the structure after the middle drive plate drives the culture installation clamp to move to the rear side; Figure 5 The present invention shows Figure 4 A in the middle is an enlarged structural diagram; Figure 6The present invention shows Figure 2 Schematic diagram of the structure after the middle T-slot is removed and the culture installation clamp is pulled outward; Figure 7 The present invention shows Figure 6 The enlarged structural diagram at B in the middle; Figure 8 The present invention shows Figure 6 Schematic diagram of the front structure after the middle T-slot is removed; Figure 9 The present invention shows Figure 6 Schematic diagram of the structure after the medium culture installation clamp is pulled out; Figure 10 The figure shows the structure diagram of the culture installation clamping piece in the present invention.

[0019] Reference Signs List 1. Culture body; 101. Culture chamber; 1011. Inverted L-shaped card plate; 1012. First adjustment rod; 1013. Second adjustment rod; 102. Transparent glass; 2. Culture installation card; 201. Installation frame; 2011. T-shaped plug plate; 2012. Placement slot; 202. Side clamp; 203. Horizontal guide rod; 2031. U-shaped card holder A; 204. Glass pressure plate; 205. Vertical guide rod; 2051. U-shaped card holder B; 3. Reciprocating oscillation drive member; 301. Toothless gear; 302. Drive plate; 3021. T-shaped slot; 3022. Pin hole; 303. T-shaped baffle; 4. Support frame; 401. Slide; 5. Observation microscope. DETAILED DESCRIPTION

[0020] In order to make the purpose, scheme and advantages of the technical solution of the present invention more clear, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the common meanings in the art. The same reference numerals in the drawings represent the same components.

[0021] Example 1: Please refer to Figures 1 to 10 : The present invention provides a modular reciprocating oscillating incubator, comprising: a culture body 1; The culture body 1 includes two sets of reciprocating oscillating culture modules and two sets of detection modules. The two sets of culture modules are respectively arranged in the culture chamber 101 of the culture body 1, and the two sets of detection modules are respectively installed on the top of the culture body 1; The reciprocating oscillating culture module includes a culture installation clamp 2 and a reciprocating oscillating driving member 3; The reciprocating oscillating driving member 3 includes a toothless gear 301 and a driving plate 302; The drive shaft of the toothless gear 301 passes downward into the cavity at the bottom of the culture chamber 101 and is connected to the drive motor. The drive plate 302 is slidably mounted between the two sets of inverted L-shaped clamping plates 101 in the culture chamber 101. The inner side of the drive plate 302 is provided with a waist-shaped hole, and the inner straight end of the waist-shaped hole is provided with a latching tooth, which meshes with the toothless gear 301. When the latching tooth on the toothless gear 301 disengages from the latching tooth on one straight end of the inner side of the waist-shaped hole, it meshes with the latching tooth on the other straight end. The culture installation fixture 2 includes a mounting frame 201, side clamps 202 and a glass pressing plate 204; The mounting frame 201 is mounted on the driving plate 302, and a placement slot 2012 is provided in the middle of the inner side of the mounting frame 201. Two sets of side clamping plates 202 are provided, and are respectively provided at the top ends of the placement slot 2012. The glass pressing plate 204 is provided directly above the placement slot 2012. The detection module includes a support frame 4 and an observation microscope 5; The supports 4 are fixed on the top side of the culture body 1 and are located directly above the culture chamber 101. A slide groove 401 is also provided on the top side of the support 4, and the observation microscope 5 is slidably mounted in the slide groove 401 through the lens barrel thereon, and is opposite to the transparent glass 102 inlaid on the top of the culture chamber 101.

[0022] In the embodiment of the present invention, Figure 1 and Figure 10 As shown, a handle is provided at the lower end of the front side of the mounting frame 201, and a square opening is provided in the middle of the top of the mounting frame 201. When the mounting frame 201 is installed on the driving plate 302, the square opening is opposite to the transparent glass 102 inlaid on the top of the culture chamber 101; it is convenient to pull the mounting frame 201 outward through the handle on the front side of the mounting frame 201, and during the culture process, the culture in the culture cylinder can be observed through the transparent glass 102, the square opening on the top side of the mounting frame 2 and the glass pressure plate 204 using the observation microscope 5.

[0023] In the embodiment of the present invention, Figure 2 、 Figure 4 and Figure 6When the cam 302 is in the upright position, the cam 302 is in the upright position, and the cam 302 is in the upright position, so that the cam 302 is in the upright position.

[0024] In the embodiment of the present invention, Figure 2 、 Figures 6 to 8 as well as Figure 10As shown, the outer ends of the side splints 202 are respectively connected with transverse guide rods 203, and the transverse guide rods 203 are respectively provided with clamping springs, and pass through the mounting frame 201 to be connected with a U-shaped clamping frame A2031 with an inverted U-shaped structure, and the U-shaped clamping frame A2031 is respectively provided on the first adjustment rod 1012 at the lower end of the inner side of the culture chamber 101, and the first adjustment rod 1012 is connected by an inclined section on the front side and a straight section on the rear side, and the inclined section of the first adjustment rod 1012 on the left side is inclined toward the left cavity wall of the culture chamber 101 and is connected to the bottom cavity wall of the culture chamber 101, and the inclined section of the first adjustment rod 1012 on the right side is inclined toward the right cavity wall of the culture chamber 101 and is connected to the bottom cavity wall of the culture chamber 101 The side cavity wall is connected. When the driving plate 302 moves to the front end of the culture chamber 101 under the drive of the toothless gear 301, the U-shaped clamping frame A2031 is installed on the front end of the straight section of the first adjustment rod 1012. The top two ends of the glass pressure plate 204 are respectively connected to the vertical guide rods 205, and the vertical guide rods 205 are respectively installed with compression springs. They are respectively passed through the installation frame 201 upward and connected to the U-shaped clamping frame B2051 of the lateral structure. The U-shaped clamping frame B2051 is respectively installed on the second adjustment rod 1013 at the upper end of the inner side of the culture chamber 101. The second adjustment rod 1013 is connected by the inclined section on the front side and the straight section on the rear side, and the inclined section of the second adjustment rod 1013 faces the culture chamber 1 01 is inclined and connected to the left and right walls of the culture chamber 101 respectively. When the driving plate 302 moves to the front end of the culture chamber 101 under the drive of the toothless gear 301, the U-shaped clamping frame B2051 is installed at the front end of the straight section of the second adjusting rod 1013; when the installation frame 201 is pulled outward, the side clamping plate 202 is pulled under the action of the inclined section of the first adjusting rod 1012 and the U-shaped clamping frame A2031 on the outside of the horizontal guide rod 203. At the same time, under the action of the inclined section of the second adjusting rod 1013 and the U-shaped clamping frame B2051 on the outside of the vertical guide rod 205, the glass pressing plate 204 is pulled upward to facilitate the placement of the culture tube into the placement slot 2012, and And in the process that the rear end of the T-shaped plug plate 2011 at the bottom of the installation frame 201 contacts the rear end of the T-shaped slot 3021, under the action of the clamping spring and the side clamping plate 202, the two sides of the culture tube are clamped and positioned, and under the action of the compression spring and the glass pressure plate 204, it is pressed on the top side of the culture tube, thereby forming a clamping protection and pressure protection for the culture tube; in the process that the culture installation clamping part 2 moves back and forth and oscillates following the reciprocating oscillation driving part 3, the U-shaped clamping frame A2031 is always installed on the straight section of the first adjusting rod 1012, and the U-shaped clamping frame B2051 is always installed on the straight section of the second adjusting rod 1013, which will not affect the clamping of the culture tube by the side clamping plate 202 and the pressure protection of the culture tube by the glass pressure plate 204.

[0025] The specific usage and function of this embodiment: In the present invention, the T-shaped baffle 303 is pulled out, and the installation frame 201 is pulled outward by the handle at the front end of the installation frame 201. Under the action of the inclined section of the first adjustment rod 1012 and the U-shaped clamping frame A2031 on the outside of the horizontal guide rod 203, the side clamping plate 202 is pulled. At the same time, under the action of the inclined section of the second adjustment rod 1013 and the U-shaped clamping frame B2051 on the outside of the vertical guide rod 205, the glass pressing plate 204 is pulled upward to place the culture tube into the placement groove 2012, and then slowly Slowly release the handle at the front end of the installation frame 201. Under the action of the clamping spring and the compression spring as well as the inclined sections on the front sides of the first adjustment rod 1012 and the second adjustment rod 1013, the installation frame 201 is driven to move inward. Then, the T-shaped baffle 303 is inserted into the T-shaped slot 3021 and the mounting frame 201 is fixed in place by inserting the pin into the pin hole 3022 at the front end of the driving plate 302. At the same time, under the action of the clamping spring and the side clamping plate 202, the two sides of the culture cylinder are clamped and fixed, and under the action of the compression spring and the glass pressure plate 204, it is pressed against the top side of the culture cylinder. The toothless gear 301 is driven by a driving motor to rotate, and the engagement between the teeth on the toothless gear 301 and the inner teeth of the driving plate 302 drives the driving plate 302 to move back and forth, thereby driving the culture mounting clamp 2 to move back and forth. When the culture cylinder follows the reciprocating oscillation drive member 3 to oscillate back and forth, the side clamping plate 202 and the glass pressure plate 204 can prevent the culture liquid and culture inside the culture cylinder from splashing; During the culture process, the position of the observation microscope 5 can be adjusted by sliding so that it is opposite to the culture tube up and down, so that the culture in the culture tube can be observed through the transparent glass 102, the square opening on the top side of the mounting frame 2 and the glass pressure plate 204.

[0026] In this article, there are several points to note: 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention. Other structures may refer to conventional designs.

[0027] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to form new embodiments.

[0028] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A modular reciprocating oscillating incubator comprising: Cultivate the subject (1); The culture body (1) comprises two groups of reciprocating oscillating culture modules and two groups of detection modules, the two groups of culture modules are respectively arranged in the culture chamber (101) of the culture body (1), and the two groups of detection modules are respectively installed on the top of the culture body (1); It is characterized in that the reciprocating oscillation culture module comprises a culture installation clamping member (2) and a reciprocating oscillation driving member (3); The reciprocating oscillating driving member (3) comprises a toothless gear (301) and a driving plate (302); The drive shaft of the toothless gear (301) is inserted downward into the cavity at the bottom side of the culture chamber (101) and is connected to the drive motor. The drive plate (302) is slidably mounted between two sets of inverted L-shaped clamping plates (101) in the culture chamber (101). The inner side of the drive plate (302) is provided with a waist-shaped hole, and the inner straight end of the waist-shaped hole is provided with a clamping tooth, which is engaged with the toothless gear (301). The culture installation fixture (2) comprises a mounting frame (201), side clamps (202) and a glass pressing plate (204); The mounting frame (201) is mounted on the driving plate (302), and a placement groove (2012) is provided in the middle of the inner side of the mounting frame (201). Two groups of side clamping plates (202) are provided and are respectively arranged at the top ends of the placement groove (2012). The glass pressing plate (204) is arranged directly above the placement groove (2012). The detection module includes a support frame (4) and an observation microscope (5); The support frames (4) are respectively fixed on the top side of the culture body (1) and are located directly above the culture chamber (101). A slide groove (401) is also provided on the top side of the support frame (4), and the observation microscope (5) is slidably mounted in the slide groove (401) through the lens barrel thereon and is opposite to the transparent glass (102) inlaid on the top of the culture chamber (101) in the upper and lower directions.

2. A modular reciprocating oscillating incubator according to claim 1, characterized in that: A handle is provided at the lower front end of the mounting frame (201), and a square opening is provided in the middle of the top of the mounting frame (201). When the mounting frame (201) is mounted on the driving plate (302), the square opening is opposite to the transparent glass (102) inlaid on the top of the culture chamber (101).

3. The modular reciprocating oscillating incubator according to claim 1, characterized in that: T-shaped slots (3021) are further provided on both sides of the top of the driving plate (302), and the mounting frame (201) is slidably inserted into the T-shaped slots (3021) through the T-shaped plug-in plate (2011) at the bottom thereof, and when the rear end of the T-shaped plug-in plate (2011) at the bottom of the mounting frame (201) contacts the rear end of the T-shaped slot (3021), the mounting frame (201) is located in the middle position of the upper side of the driving plate (302), and a T-shaped baffle (303) is further inserted at the front end of the T-shaped slot (3021), and a horizontal plate is provided on the outer end side of the T-shaped baffle (303), and a latch is inserted into the horizontal plate, and the latch is inserted into the pin hole (3022) at the front end of the driving plate (302) to fix the mounting frame (201) in position.

4. A modular reciprocating oscillating incubator according to claim 3, characterized in that: The outer ends of the side clamps (202) are respectively connected to transverse guide rods (203), and the transverse guide rods (203) are respectively fitted with clamp springs, and pass through the mounting frame (201) to be connected to a U-shaped clamping frame A (2031) with an inverted U-shaped structure, and the U-shaped clamping frame A (2031) is respectively fitted on the first adjustment rod (1012) at the lower end of the inner side of the culture chamber (101).

5. The modular reciprocating oscillating incubator according to claim 4, characterized in that: The first adjusting rod (1012) is formed by connecting an inclined section on the front side and a straight section on the rear side, and the inclined section of the first adjusting rod (1012) on the left side is inclined toward the left cavity wall of the culture chamber (101) and is connected to the bottom cavity wall of the culture chamber (101), and the inclined section of the first adjusting rod (1012) on the right side is inclined toward the right cavity wall of the culture chamber (101) and is connected to the bottom cavity wall of the culture chamber (101). When the driving plate (302) moves to the front end of the culture chamber (101) under the drive of the toothless gear (301), the U-shaped clamping frame A (2031) is sleeved on the front end of the straight section of the first adjusting rod (1012).

6. The modular reciprocating oscillating incubator according to claim 3, characterized in that: The top ends of the glass pressure plate (204) are respectively connected to vertical guide rods (205), and the vertical guide rods (205) are respectively fitted with compression springs, and are respectively passed through the installation frame (201) upwards and connected to a U-shaped positioning frame B (2051) of a lateral structure, and the U-shaped positioning frame B (2051) is respectively fitted on the second adjustment rod (1013) at the upper end of the inner side of the culture chamber (101).

7. The modular reciprocating oscillating incubator according to claim 6, characterized in that: The second adjusting rod (1013) is formed by connecting an inclined section on the front side and a straight section on the rear side, and the inclined section of the second adjusting rod (1013) is inclined toward the upper cavity wall of the culture chamber (101) and is respectively connected to the left and right cavity walls of the culture chamber (101). When the driving plate (302) moves to the front end of the culture chamber (101) under the drive of the toothless gear (301), the U-shaped clamping frame B (2051) is installed on the front end of the straight section of the second adjusting rod (1013).